Jaw crusher (see Figure 3-3) has a simple structure and is widely used in ceramic and nonmetallic mineral products processing plants. It is an indispensable equipment for coarse crushing. The small jaw crusher has been assembled in the factory and can be installed integrally. Before installation, the manufacturing quality of the equipment must be checked, and the number of parts should be counted according to the packing list. There should be no collision or damage during transportation. Then measure the central dimension of the anchor bolt hole of the frame and make records to correct the central dimension of the foundation anchor bolt hole.

Jaw crusher installation sequence:

1. base tag

According to the design size of the process layout and the actual size of the equipment anchor bolt hole, draw the center reticle (Figure10-9);

Figure 10-9 Jaw Crusher Foundation Mark

1-250×500 jaw crusher foundation; 2- Mu Dao; Three-motor foundation

2. The foundation elevation meets the design requirements

The contact surface between the foundation and the slide rail (track) should be level. It's best to choose elm as a mat, so that the equipment can play a role in damping when running.

3. Integral hoisting

Set up an inverted chain with two wooden blocks or hoist the jaw crusher on the foundation, find the center position, tighten the anchor nut, then measure the level on the eccentric shaft head, and loosen the anchor nut to adjust according to the measurement error (Figure 10- 10). After the levelness meets the requirements, tighten the anchor nut.

Figure10-10 Installation of 250× 500 Jaw Crusher

1- Mu Dao; 2- bottom gasket; 3- Movable jaw; Four motors

4. Cleaning and inspection

Before commissioning, the machine should be cleaned and inspected. The contact angle between eccentric shaft and bearing bush should be 1 10 ~ 120. Because the eccentric shaft is slightly elastically deformed when it is stressed in operation, its contact surface should be as shown in figure 10- 1 1 under load, otherwise it should be.

After installation, the quality requirements are as follows:

(1) center position error shall not exceed 5 mm;

(2) the elevation error is less than 5 mm;

(3) The center heights of the shaft heads at both ends shall be equal, and the error shall not exceed 0.2mm; ;

(4) The levelness shall be measured with a level of 0.05/ 1000, which shall not exceed one grid;

(5) The side clearance of bearing shell is calculated as 0.00 1D (shaft diameter).

Figure 10- 1 1 Schematic diagram of bearing contact surface

Commissioning and operation: Before commissioning, the main bearings and running parts should be filled with lubricating oil, the connecting bolts of all parts should be tightened, and the periphery of the machine should be cleaned.

The motor should be put into single-machine trial operation, and the V-belt driven jaw crusher can be put into operation only after there is no problem. Technical operation requirements for commissioning are as follows:

(1) Single machine runs for 3 ~ 4 hours without load;

(2) The temperature of bearing bush is stable, and the rolling bearing does not exceed 70℃. Sliding bearing (hardware tile) shall not exceed 60℃. The normal temperature should be 35 ~ 45℃;

(3) The vibration of the frame shall not exceed 0.2 ~ 0.5 mm/m;

(4) Load test run for 7 ~ 8 hours.

When the load test begins to discharge, it should be added slowly, and the temperature and operation of each bearing should be paid attention to at any time. Large ore exceeding the feed size should not be added. If the discharge port is accidentally blocked by large ore, it should be stopped immediately to avoid damaging the parts.

After the load runs normally, before putting into production, the connecting bolts of all parts should be tightened again, and they should be checked regularly during production.

Adjust the width of the discharge port according to the required ore granularity (see Figure 3-3). Pull the adjusting bolt 7 by hand to make the inclined backing plate 2 of the rear wall plate move up and down. When the adjusting bolt is lifted, the inclined backing plate can rise and the discharge port can be narrowed. On the contrary, increase. After adjusting to the appropriate width, mark the adjusting bolt for later adjustment.

In order to ensure normal production, operators should pay attention to the following items:

(1) Feeding should be even, too much feeding, and the machine is overloaded, which is prone to mechanical accidents, but too little feeding will reduce production efficiency;

(2) Always check whether there are metal blocks in the crushed materials, so as not to damage the machine;

(3) Check the eccentric bearing frequently and inject enough lubricating oil. Bearings can be measured with a thermometer and touched by hand. When the bearing is found to be hot, it must be stopped for inspection and repair.

(4) Always check whether the bolts of each part are loose;

(5) Buffer position, when the tension rod spring is tightened, the minimum distance between two adjacent spiral coils of the spring should not be less than 2 ~ 4mm；;

(6) Stop after the material at the inlet is completely broken, and feed is not allowed before the equipment is started;

(7) When the jaw plate and the side wall plate are damaged, they should be replaced in time;

(8) When the machine is running, it is forbidden to clean or repair, and the pulley and flywheel should have protective covers.

Second, the installation of ball mill

The installation of the ball mill, like other mechanical installations, should follow the following steps:

(1) Install the ball mill body first, and then install transmission mechanisms such as pulleys and gears;

(2) Install the main bearing first, and then correct the bearing of the transmission part;

(3) Calibrate the center line of the ball mill cylinder and the center line of the main bearing first, and then calibrate the center line of the transmission bearing.

The installation process is as follows:

(1) Preparation before installation

First, check, clean and pre-install the accessories of the ball mill according to the product instructions. If there are any omissions or errors, they should be recorded in writing and filed for future reference.

(2) Basic marking

Before installation, the ball mill should pour the foundation according to the requirements of the product manual (or self-design), and the foundation marking and installation must be carried out after sufficient strength.

The first step of basic marking is to bury the central target:

The center target is marked and positioned by welding 5mm steel bars on a steel plate with a thickness of 5mm, a width of 100mm and a length of 150mm (see figure 10- 12).

Figure 10- 12 Hanging the center line (central target)

When burying, don't expose the foundation surface too much, and it is best to be flush with the foundation. The number of embedments is: 2 longitudinal centerplates of ball mill body, 4 transverse centerplates and 2 transmission shaft centerplates.

The second step is to lay the foundation. According to the selected position, determine the orientation of the center line of the ball mill, and then tighten it with a 10m steel tape with a tension of 20kg. Many people accurately measure the distance between the midpoint of two shaft heads many times. Mark this distance on the center plate with the transmission shaft foundation as the reference point. Based on these two points, the center line of transmission equipment such as pinion bearing seat is drawn according to the drawing size.

The third step is to install the wire frame and hang the center line. Use angle steel or square wood to make the middle wire frame and fix it on the end face of foundation (see figure 10- 12). The height of the centerline frame should exceed the height of the cylinder. Hang the center line with No.22 steel wire, with one end fixed and the other end hung with a heavy object 10kg. Hang the wire hammer, take the center of the central target as the standard, aim at the center, and make the steel wire coincide with the central eye of the target.

(3) Install the base and bearing

1. Scraping and grinding of bearing alloy

Hang the ball tile on the spindle with a chain, coat the spindle with red lead in advance, rotate the ball tile, and scrape the contact surface with a semi-circular scraper according to the contact situation, so that the contact area has 1 ~ 2 points per square centimeter, and the contact angle is 90 ~ 120. The gap between the two sides should meet the requirements of the drawings.

2. Draw lines on the base and bearing.

Scribing on the pedestal: on the machined surface of the pedestal, draw the vertical and horizontal center lines of the installation according to the footing bolts (see figure 10- 13).

Figure 10- 13 Basic Markers

Marking the bearing seat: add a square wood in the middle of the bearing seat hole, and nail a diamond-shaped thin iron sheet in the center of the square wood to find the center point. Use a ruler to find out the center point and crosshair, and make the side centerline according to the width of the tile seat (see figure 10- 14). After the marking work is completed, the strength of concrete foundation can reach more than 75%, and it can be installed.

Fig. 10- 14 bearing block diagram

3. Installation of the base

Measuring elevation: the elevation of the base can be measured with a level or water pipe joint. Generally, it is relatively simple to measure with water pipe joints. The method is: take a rubber tube, put glass tubes on both ends and add light water. On the machining surface of the base, put a level meter, and according to the elevation point of the base, put one end of the water pipe on the elevation point. Based on this, the other end is close to the side of the base, and the height of the base is determined according to the horizontal height. Determine the thickness of the gasket according to the measurement results. When using the water pipe connector, pay attention to the fact that there can be no bubbles when the water pipe is filled with water. Before use, put two glass tubes together to see if their heights are equal.

Alignment of the base: suspend the plumb hammer according to the suspension center line, and adjust the vertical and horizontal center of the base to coincide with the vertex of the plumb hammer. When finding the center position of the base at each end, two wire hammers should be hung. This can ensure that the center line of the base is vertical and parallel.

Use a level of 0.04 ~ 0.11000 to measure the levelness on the machined surface of the base, and more positions need to be measured to be accurate.

Add gasket: according to the measurement results, obtain the required gasket thickness. The thick pad is made of cast iron, and the thin pad can be forged into wedge-shaped steel plate. When placing the shim, the foundation under the shim should be level. If the foundation is low, add a layer of mortar.

4. Grouting of anchor bolt holes

After the base is installed and corrected, the anchor bolts can be grouted. Generally, 150 concrete is needed. After the concrete strength is fully improved, the anchor bolts can be tightened.

5. Installation of bearing seat

Before casting alloy, the spherical bearing bush should be subjected to a water pressure test of 2 ~ 4 kgf/cm2. If water leakage is found during shift change, it can be solved by drilling. If there are cracks, pig iron can be burned for electric welding. After pouring, water pressure test should be carried out.

Hang the bearing seat on the base, aim at the center point of the bearing seat with a messenger hammer, and make the center line of the bearing seat coincide with the center line of the base.

Measure the center distance of bearings at both ends with a steel tape measure, and the error shall meet the requirements of the drawings.

Measure the center height of the big bearing pads of two bearings with water pipe joints, so that the pad pads at both ends are on the same horizontal line.

Tighten the bearing bolts.

(4) Installation of grinding body

Before installing the grinding body, check the connection between the ball mill cylinder and the side plate, or the connection between the side plate and the spindle head. If it is found that it does not meet the requirements, it should be adjusted or reinstalled.

1. A tripod can be set up for a small ball mill and directly hoisted by a hoist. For larger ball mills, sleepers can be stacked between two foundations, and the cylinder can be transported to two bearing pads (50 ~ 100 mm higher than the bearing pads) by winch or winch, and then the grinding body can be jacked up by two jacks at both ends. Remove a layer of sleepers and adjust the cylinder so that the distance between the shaft heads at both ends and the ends of the bearing bush is equal. Then slowly fall on the bearing bush. See figure 10- 15 for the installation method.

2. Measure the center line of the grinding body so that the hanging vertical line coincides with the center points of the shafts at both ends of the grinding body.

3. Elevation measurement, with water pipe joint measurement (see figure 10- 16). It is required that the center lines of both ends of the shaft are on the same horizontal plane, and the maximum permissible error shall not exceed 0.5mm..

Figure 10- 15 Installation of ball mill cylinder

Figure 10- 16 Grinding Body Elevation Measurement

4. Use 0.04 ~ 0.11000 level to measure the elevation at both ends of the shaft, and the deviation should not exceed one grid.

5. Use the original thin gauge to detect the clearance between the big tile and both sides of the shaft, and the clearance shall meet the requirements of the drawings.

6. Install the oil ring on the two spindle heads.

7. Turn the cylinder by hand to see if the rotation is flexible, but there should be no eccentric shaking, otherwise the above technical facilities should be corrected repeatedly.

8. Install the main bearing cover. Before installation, clean the big tile and spindle, then coat it with engine oil, cover the tile cover, tighten the connecting screws symmetrically and evenly, and turn the grinding body to check whether the torque of the screws is even and the contact gap is too small.

(5) secondary grouting

Grouting should be carried out between the base and foundation. Before grouting, tighten the anchor bolt, tighten the inclined iron, and fix the pad iron by electric welding, but don't weld the base and pad iron. The foundation under the pedestal should be cleaned. When grouting, it shall be compacted, and there shall be no defects such as cracks or honeycombs.

(6) Installation and inspection of large gears

1. Check the pitch with a gauge made of thin iron sheet. If it does not meet the requirements, it should be repaired and the casting sand skin should be cleaned.

2. If the big gear is split, the two halves of the gear should be closed together, and the corresponding bolts should be tightened, and the diameter deviation between the pitch circle and the excircle should be checked with a dial indicator. If the deviation exceeds the drawing, it should be adjusted by hydraulic press.

3. Assemble the manufactured assembly crosshead, first install one half, rotate the cylinder to move one half of the gear to the lower part, and then install the other half. A quarter of the connecting bolts of the cylinder should be dowel bolts, that is, the hole and bolt are in transition fit, and the positions of dowel bolts are evenly distributed on the circumference and should be symmetrical.

4. Check the gear installation quality. Check the tooth pitch of the contact surface of two and a half gears with a three-tooth template, and the error shall not exceed 0.005 m (modulus), and the gap between the big gear and the cylindrical flange shall not exceed 0.05 mm Check the axial deviation and radial deviation of the big gear with a scriber (see figure 10- 17). It is required that the radial deviation should not exceed 0.00 1D(D is the outer diameter of the big gear) and the axial deviation should not exceed 0.5 ~1.0 mm. ..

Figure 10- 17 gear measurement

A- radial deviation; B-axis deviation

(7) Install pinion and transmission shaft.

First, scrape and grind the bearing bush of the transmission shaft. It is required that the contact angle of bearing bush is 70 ~ 90, the contact surface is not less than 2 points per square centimeter, and the clearance between bearing bush and bearing bush should meet the requirements of drawings.

The installation requirements of the transmission shaft conform to the center distance between the two gears in the drawing, and the shaft should be parallel to the center line of the mill. The pinion is assembled by hot pressing method, put on the bearing seat after assembly, and then pour the anchor bolt. After a period of maintenance, tighten the connecting bolts and check the center line, install the bearing cover and check the clearance with the shaft.

(8) Check the meshing of large and small gears

Apply red lead oil to the pinion tooth surface and measure the contact area with a rotary grinder. The contact point should be on the pitch circle line, which is preferably 20% ~ 25% of the tooth height and 65% ~ 70% of the tooth width according to the standard requirements.

Measure the top clearance and side clearance of meshing with lead pressing method or ruler. Top gap 0.2~0.25m (modulus)+thermal expansion (about1mm); The backlash of milling teeth is 0.06 ~ 0. 10m (modulus), and that of casting teeth is 0. 16m (modulus).

(9) Determination and adjustment of static balance of large triangle pulley

The static balance of large V pulley must be measured before assembly. If the static balance is unbalanced, it will cause vibration during operation or periodic noise during gear rotation.

The static balance test can be carried out by using the transmission base. After installing the two bearings, put the big pulley, align and level it, divide the wheel into four points according to the circumference, and turn around to observe. If it is unbalanced, its heavy side will always be downward, so it can be balanced by adding weights in a symmetrical position.

(10) Installation of gasket

Intermittent ball mills are mostly used for processing nonmetallic minerals. When grinding mineral raw materials, in order to ensure the quality and protect the ball-milled steel cylinder which is easy to wear, all ball mills need to use lining plates. In the past, flint was mostly used as lining. In recent years, some factories have used rubber liner instead of flint plate to carry out wet grinding tests. The data obtained in the process prove that the rubber lining ball milling has the following advantages compared with flint lining ball milling: in terms of output, the same volume mill can increase the output by 30% ~ 40%; In terms of power consumption per unit area, it can save electricity15% ~ 20%; Noise reduction; The vibration of the mill during operation is greatly reduced, and the service life of the mill transmission device is prolonged. In addition, the outstanding advantage of rubber liner is that its service life is about 5 ~ 6.5 times that of flint liner (that is, rubber liner can be used 10 year). Greatly reduce that installation time and maintenance cost of the lining plate. However, the one-time investment cost of rubber liner is large, which is 6.82 times that of flint liner.

The installation method of the gasket is not described in detail here.

Trial operation of (1 1) ball mill

After the ball mill is installed, no-load trial operation, half-load trial operation and full-load operation should be carried out to check whether the installation quality meets the requirements.

1. No-load test run

Start the mill without grinding material and run it for more than 4 hours. Check the following items:

The working condition of the lubrication system, such as whether the oil with oil is effective. Check the bearing temperature, which shall not exceed 60℃.

Whether the movement of the ball mill exceeds the allowable limit.

Whether the large and small gears and reducers operate normally, whether the noise is strong, whether the meshing traces of the large and small gears meet the requirements, and whether the radial and axial deflections of the large gears are within the allowable range.

Whether the large V-belt pulley operates normally or not, judging from vibration, whether the weight of the large V-belt pulley is balanced or not, and judging whether the belt is tensioned or not from heating near the belt groove.

The temperature rise of the motor and whether the whole electrical system works normally.

2. Half load test run

Fill half of the grinding body and materials, run for 4 ~ 8 hours, and also check the above items for adjustment.

3. Full load test run

Add abrasives and materials, and pay close attention to whether the motor current exceeds the rated value and whether the motor speed is obviously reduced during operation. Check the belt slippage and bearing heating, and check the vibration of the ball mill. If the above conditions are normal, the trial run is over. After stopping grinding, re-tighten the anchor nut. It can be officially put into production.

Third, the installation of belt conveyor

(1) Installation sequence

Before installation, the foundation should be cleaned and marked. Hang a longitudinal steel wire line in the center of the head and tail drum, draw the center line of the foundation, and then draw the left and right sideline lines (the center line of the anchor bolt of the bracket) from this line. Then draw the horizontal spacing line according to the construction drawing size.

According to the line drawn on the foundation, check the position of the reserved anchor bolt hole. If there is any difference, re-drill the hole.

1. Rack mounting

According to the position of the anchor bolt hole, first arrange the racks, connect them with bolts, and insert the anchor bolt into the hole. After alignment and leveling according to the foundation centerline, the anchor bolts can be grouted. After the anchor bolt reaches the strength, it needs to be re-aligned, then the anchor bolt is tightened, and then the idler is installed.

2. Installation of nose and tail drum

According to the alignment of the center line of the frame, the transverse center lines of the two rollers should be parallel, with an error of no more than 65438±0mm and a levelness of no more than 0.5mm per meter.

3. Installation of transmission device

According to the driving drum, install the reducer first, and then install the motor. The axial center line should be checked with a messenger hammer, and the error is not greater than 65438 0 mm.

4. Belt installation

Before installation, adjust the tensioner to the end point, measure the length with a steel ruler, and calculate the length of the belt according to the thickness of the belt. The incision should be vertical and tidy, and the working face should be upward when connecting, and it can be loosened after cementing.

(2) The basic requirements of belt conveyor installation.

(1) The belt should be in good contact with the drum without sliding friction, so as to improve the service life of the belt;

(2) Ensure that the belt runs smoothly, and there should be no obvious swing and jump;

(3) Ensure that the belt will not fall off during operation;

(4) The belt joint shall be correct and in a straight line, and the working face shall not be installed backwards.

Four. Installation of rotary dryer

The drum dryer is installed according to the following steps:

(1) Install roller device and roller blocking device on the foundation;

(2) Hoist the machine body and gently place it on the idler and the idler blocking device;

(3) Install the transmission device;

(4) Grouting after adjustment is qualified;

(5) Trial operation.

The installation process is as follows:

(1) Preparation before installation

Firstly, the parts of the drum dryer are counted, cleaned and preassembled according to the product specification, and the machined surface of the parts is trimmed.

(2) Basic marking

Before installation, the rotary dryer should pour the foundation according to the requirements of the product manual, and the inclination of the supporting surface of the foundation should be consistent with the inclination of the machine body. After reaching sufficient strength, the foundation shall be marked and installed.

(3) Install the roller seat and the blocking roller seat

When the idler and idler block are installed on the foundation, the scribe line on the foundation plate should completely coincide with the scribe line on the horizontal bottom plate of the foundation (as shown in figure 10- 18).

Fig. 10- 18-based bearing seat installation drawing

1 base; 2- compression screw; 3- Anchor bolt; 4- bench; 5- Roller mounted on bearing; 6- plumb line; 7- Foundation center marking

Fig. 10- 19 Inspection Diagram of Supporting Wheel Installation

1- inner diameter gauge; 2- Support roller

At the same time, the frame should be pressed on the foundation baffle by compression screws. Insert the anchor bolt into the hole in the plate, install the washer and nut and tighten the bolt to calibrate the inclination and height of the bracket. On time, the two ends of the plumb line should coincide with the scribing of the horizontal bottom plate in the longitudinal axis direction of the foundation. Check the gap q between the two idlers of the frame with an inner diameter gauge (as shown in figure 10- 19). This gap should be equal to

Non-metallic mineral processing machinery and equipment

Where Db—— is the diameter of the support hoop;

DC- diameter of backup roll.

The distance a between the centers of the support rollers should be equal to: a = 2a+DC, and the size of this dimension should be checked from both sides of each support. Then, move the roller base on the foundation, so that the two ends of the vertical plumb line coincide with the scale of the bedplate positioned according to the longitudinal axis of the foundation (parallel to the center line of the roller) (as shown in figure 10-20). Put a ruler at the end of the idler and measure the displacement, which should not exceed 5mm (as shown in figure 10-2 1).

Figure 10-20 Installation drawing of roller base on foundation

Figure 10-2 1 Check the parallelism and concentricity of the supporting wheels.

1- backup roller; 2- foundation plate; 3- foundation; 4-way plate; Five rulers

Tighten the horizontal line above the rollers of the roller set, so that the vertical line coincides with the scribed line of the horizontal axis of the foundation mounting seat. Move the fixed wheel seat, so that the vertical line coincides with the directional line perpendicular to the center line of the wheel of the seat plate. Put down two vertical lines from the horizontal line to the bus on the idler (Figure 10-22). At the same time, the distance between both ends of the plumb line and the middle of the bus should be the same and equal to:

Non-metallic mineral processing machinery and equipment

Where h refers to the height of the support bearing from the base to the center line of the idler;

α —— the inclination angle between the roller seat and the horizontal line.

Install a narrow ruler on the middle surface of the width of the idler, put a level on the ruler, and adjust the ruler to a horizontal position by pressing the screw.

Figure 10-22 Inspection diagram of the relative position of roller seat and horizontal plumb line

Figure 10-23 Tilt inspection of roller seat

1 class instrument; 2- wedge; 3- Support roller; α-the angle equivalent to the design inclination angle of the equipment.

Calibrate the installation position of the bearing seat, so that the distance between the middle plane of the blocking roller seat and the roller of the roller seat is equal to the distance between the middle parts of the hoop of the equipment shell.

The pulley block and pulley block are tilted by adjusting screws (Figure 10-23).

After the calibration, grout the anchor bolts, tighten the nuts after the concrete is solidified, calibrate again, and grout the two supports for the last time.

(4) Installation of cylinder

When the drum is installed on the drum seat, it must be ensured that the inclination of the drum axis is the same as that of the drum center line. The wedge-shaped target can be made of hardwood according to the inclination of the cylinder, put on the roller, and then put on the wedge-shaped target with a level meter for measurement. After the roller is installed, the cylinder is installed, and the contact between the roller and the raceway is measured by lead pressing method for further adjustment. After adjustment, the radial circular runout at both ends of the cylinder is less than 4 mm

When the dryer is running, the end face of the rolling ring should not contact with the upper and lower gears often or only slightly. If the cylinder moves up and contacts the upper pulley, add oil to the pulley. At this time, the cylinder should move down and leave the upper pulley. Otherwise, if the cylinder moves down and contacts the lower pulley, a little fine sand will be sprinkled on the pulley. Soon, the cylinder will stop moving down and the rolling ring will leave the lower pulley.

If the bucket moves badly, it is necessary to rotate the idler shaft (adjust the jacking wire) in a horizontal position to correct it. The method is: draw an arrow on the surface of the drum with chalk, so that the arrow points to the rotating direction of the drum. After rotating the drum shaft clockwise or counterclockwise, if the arrow is inclined downward, the cylinder can move downward, otherwise it can move upward.

(5) Installation of transmission device

Install the electric reducer group (as shown in Figure 10-24) including the lower crown gear, the main and auxiliary reducers and the motor on the foundation, and center the lower crown gear and the crown gear with two slices (0.25 modulus+0.5mm thermal expansion compensation), the thickness of which is equal to the gap between the teeth. Place the lamellae at the bottom of the teeth to be meshed on both sides of the gear, push the lower crown gear and bracket to the ends of these lamellae, and adjust the position with the compression screws.

The allowable meshing deviation between the crown gear and the lower crown gear is as follows:

The radial and axial vibration of the gear ring should be less than 3mm;

5 mm away from the center line of the crown gear;

The inclination of the transmission device should be consistent with the machine body, the deviation should be less than 0.65438 0 mm per meter, and the coaxiality between the motor and the shaft center line of the reducer should be less than 0.5 mm.

After installing and aligning the transmission gear and the crown gear, finally check the alignment of the main reducer and the lower crown gear, the auxiliary reducer and the main reducer, and the motor and the main auxiliary reducer at each half coupling.

The transmission device (electric retarder) shall be tested for 3 hours, in which the speed of the motor shall be tested for more than 30 minutes, and the auxiliary motor shall be driven for more than 1 hour.

Figure 10-24 Schematic diagram of transmission installation

1- reducer; 2- shell; 3- reducer; 4- motor; 5- Supporting frame; 6- Anchor bolt; 7- compression screw; 8- foundation; 9- crown gear; 10- lower crown gear

The loading and unloading cover, combustion chamber and sealing ring shall be assembled according to the assembly drawing and general procedures.

(6) Commissioning of the equipment

Grouting shall be carried out after the installation and adjustment of each part are qualified, and no-load test shall be carried out after the cement is dried and solidified.

Check whether the connection between the anchor bolt and various parts is firm, and after the gears and other moving parts are free from jamming, start the machine and run continuously for 8 hours. Check whether the cylinder moves violently back and forth, whether the gear transmission vibrates violently and how the bearing works. The maximum bearing temperature does not exceed 65℃ (ambient temperature is 30℃), and the motor current has no obvious fluctuation. After passing the no-load test, carry out the load test. Test procedure: introduce hot medium during operation. After reaching the working temperature, add materials under normal load, and the equipment will run continuously for 8 hours to check whether it is running normally. If it runs normally, it can be put into trial production.