Main driving device of circular cooler

Abstract

The utility model relates to the technical field of metallurgical equipment sintering and pellet circular cooler equipment friction type driving mode rapid maintenance and replacement, and particularly discloses a circular cooler main driving device. A driven friction wheel and a driving friction wheel are in contact and penetrate through a friction disc, and the driven friction wheel is located above the driving friction wheel; the driven friction wheel is rotationally installed on a driven friction wheel frame, the driven friction wheel frame is connected with the platform base through a disc spring pull rod adjusting mechanism, and the disc spring pull rod adjusting mechanism adjusts the distance between the driven friction wheel and the driving friction wheel. The driven friction wheel frame is installed on the upper portion of the main transmission platform, the driving friction wheel is installed on the main transmission platform and connected with the main transmission motor through a coupler, the main transmission motor drives the driving friction wheel to rotate, the main transmission platform is installed on the platform base, and lifting lugs are arranged at the four corners of the platform base. According to the utility model, the circular cooler does not stop, the main transmission system can be quickly and efficiently replaced, and the equipment operation rate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of rapid maintenance and replacement of friction-type drive mode of metallurgical equipment sintering and pelletizing ring cooler equipment, and in particular to a main drive device of a ring cooler. Background Art

[0002] The ring cooler is one of the three main equipments of the sintering system. The transmission device of the ring cooler is one of the core components of the ring cooler. The rotation of the ring cooler must rely on the friction drive of the transmission device.

[0003] The transmission device is composed of active and passive friction wheels, reducers, motors, encoders, couplings, differential detection devices, transmission platforms, lubrication devices, etc. Through the action of disc springs and connecting rods, the active and passive friction wheels tightly clamp the friction plates. When the motor drives the main friction wheel through the reducer, the friction between the friction plate and the friction wheel causes the rotating frame and the trolley to move in a circle. The running speed of the ring cooler trolley should meet the requirements of the running speed of the sintering machine trolley. It is usually adjusted within the range of 1:3, starting at high speed and then adjusting downward. The transmission device requires long-term continuous operation and can meet the requirements of speed regulation and maintain constant torque characteristics.

[0004] Since the active friction wheel of the annular cooler has a large operating torque, poor operating environment, low speed and heavy load, the deterioration trend of its friction wheel bearing is difficult to control. Remote monitoring and preventive maintenance are difficult to achieve now. Once a fault is discovered, it is already damaged. If the machine is shut down for replacement, it will cause serious production losses.

[0005] Therefore, it is urgent to design a main drive device for a ring cooler to solve the problems of damage to the main transmission of sintering and pelletizing in the existing technology, suspension of sintering and pelletizing, and reduced load production of the entire system due to inability to feed the blast furnace in sufficient quantities. At the same time, the friction wheel of the ring cooler is replaced online and the lifting distance is long, which poses construction safety risks, and the replacement process is cumbersome, the replacement time is long, the efficiency is low, and safety cannot be guaranteed. Utility Model Content

[0006] In view of the problems existing in the prior art, the utility model aims to provide a main drive device for a ring cooler.

[0007] The utility model solves the technical problem by adopting the following technical solution: a main drive device of an annular cooler, comprising a driven friction wheel and an active friction wheel, wherein the driven friction wheel and the active friction wheel are in contact with each other through a friction disk, the driven friction wheel is located above the active friction wheel, the driven friction wheel is rotatably mounted on a driven friction wheel frame, the driven friction wheel frame is connected to a platform base through a disc spring pull rod adjustment mechanism, and the disc spring pull rod adjustment mechanism adjusts the distance between the driven friction wheel and the active friction wheel;

[0008] The driven friction wheel frame is installed on the upper part of the main transmission platform, the active friction wheel is installed on the main transmission platform, the active friction wheel is connected to the main transmission motor through a coupling, the main transmission motor drives the active friction wheel to rotate, the main transmission platform is installed on the platform base, and the four corners of the platform base are provided with lifting ears.

[0009] Specifically, one side of the driven friction wheel frame is rotatably mounted on the upper part of the main transmission platform through the driven friction wheel frame pin shaft, and the other side of the driven friction wheel frame is rotatably connected to the disc spring pull rod adjustment mechanism through the spring pull rod pin shaft.

[0010] Specifically, the disc spring pull rod adjustment mechanism includes a disc spring pull rod, a disc spring and a hydraulic jack. The upper part of the disc spring pull rod is connected to the driven friction wheel frame through a spring pull rod pin shaft. The disc spring pull rod passes through the through hole of the main transmission platform, the middle part of the disc spring and the through hole of the bearing pad. The disc spring pull rod is threaded with an adjustment double nut, and the adjustment double nuts are both located at the lower part of the bearing pad. The disc spring pull rod and the adjustment double nut are both inserted into the inside of the adjustment auxiliary sleeve. A special adjustment wrench is clamped on the adjustment double nut. The handle of the special adjustment wrench extends out of the strip groove of the adjustment auxiliary sleeve. The bottom of the adjustment auxiliary sleeve is connected to the top rod of the hydraulic jack. The hydraulic jack is installed on the platform base.

[0011] A thrust bearing is installed on the upper part of the bearing pad, the inner ring of the thrust bearing is connected to the disc spring pull rod, the upper part of the thrust bearing is connected to the disc spring guide ring 2, the disc spring guide ring 2 is also connected to the bearing pad, the inner side of the disc spring guide ring 2 is connected to the disc spring guide cylinder, the disc spring guide ring 1 is installed on the lower part of the top of the main transmission platform, the disc spring is installed between the disc spring guide ring 1 and the disc spring guide ring 2, and the lower part of the disc spring is stuck between the disc spring guide ring 2 and the disc spring guide cylinder.

[0012] Specifically, the coupling includes coupling one and coupling two, the through shaft of the active friction wheel is installed on the active friction wheel bearing seat, the active friction wheel bearing seat is installed on the active friction wheel base, the through shaft of the active friction wheel is connected to coupling two, coupling two is connected to the planetary reducer, the planetary reducer is installed on the main transmission column, the main transmission column is installed on the platform base through the platform connecting bolts, the planetary reducer is connected to coupling one, coupling one is connected to the main transmission motor, and the main transmission motor is installed on the platform base through the motor bracket.

[0013] Specifically, lifting ears are installed at the four corners of the platform base, the lifting ears are connected to the balance beam of the sling through steel wire ropes, and a lifting ring is installed on the upper part of the balance beam of the sling, and the lifting ring is connected to the crane hook.

[0014] The utility model has the following beneficial effects:

[0015] The main driving device of the annular cooler designed by the utility model utilizes the butterfly spring pull rod adjustment mechanism of the annular cooler. The pull rod adjustment double nuts are removed by adjusting a special wrench, the active friction wheel and the driven friction wheel are separated, and the main transmission platform of the annular cooler is pulled out and dragged in by using a crane hook in cooperation with a special lifting tool for the transmission platform. By combining scale marking, lead wire pressing and current comparison, the annular cooler can be kept running, and the main transmission system can be quickly and efficiently replaced, thereby improving the equipment operation rate, reducing repeated operations in the adjustment process, greatly reducing operating hours, reducing safety risks, and ensuring the long-term safe and stable operation of the annular cooler. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural diagram of the main drive device of the ring cooler.

[0017] Figure 2 It is a structural diagram of the butterfly spring pull rod adjustment mechanism.

[0018] Figure 3 It is a schematic diagram of the hoisting structure of the main drive device of the ring cooler.

[0019] Figure 4 This is a schematic diagram of the allowable tolerance of the end misalignment of the active friction wheel and the driven friction wheel.

[0020] Figure 5 This is a schematic diagram of the allowable tolerance of the center lines of the active friction wheel and the driven friction wheel.

[0021] Figure 6 This is a schematic diagram of the main transmission platform distribution of the ring cooler.

[0022] In the figure: 1-driven friction wheel; 2-active friction wheel, 201-active friction wheel bearing seat;

[0023] 3- butterfly spring pull rod adjustment mechanism, 301- disc spring pull rod, 302- disc spring, 303- disc spring guide ring 1, 304- disc spring guide ring 2, 305- disc spring guide cylinder, 306- thrust bearing, 307- bearing pad, 308- adjustment double nut, 309- adjustment auxiliary sleeve, 310- hydraulic jack, 311- special adjustment wrench;

[0024] 4-main transmission platform, 401-active friction wheel base, 402-main transmission column, 403-platform connecting bolts;

[0025] 5-main drive motor; 6-coupling 1; 7-planetary reducer; 8-coupling 2; 9-platform base; 10-spring pull rod pin; 11-driven friction wheel frame pin; 12-lifting ear; 13-driven friction wheel frame; 14-friction disc; 15-crane hook; 16-sling. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely further describe the technical solutions in the embodiments of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] like Figure 1-Figure 6 As shown, a main drive device of a ring cooler includes a driven friction wheel 1, an active friction wheel 2, a disc spring pull rod adjustment mechanism 3, a main transmission platform 4, a main transmission motor 5, and a lifting lug 12. The driven friction wheel 1 and the active friction wheel 2 are in contact through a friction disc 14. The driven friction wheel 1 is located above the active friction wheel 2. The driven friction wheel 1 is rotatably mounted on a driven friction wheel frame 13. The driven friction wheel frame 13 is connected to a platform base 9 through a disc spring pull rod adjustment mechanism 3. The disc spring pull rod adjustment mechanism 3 adjusts the distance between the driven friction wheel 1 and the active friction wheel 2.

[0028] The driven friction wheel frame 13 is mounted on the upper part of the main transmission platform 4, the active friction wheel 2 is mounted on the main transmission platform 4, the active friction wheel 2 is connected to the main transmission motor 5 through a coupling, the main transmission motor 5 drives the active friction wheel 2 to rotate, the main transmission platform 4 is mounted on the platform base 9, and the four corners of the platform base 9 are provided with hanging ears 12. One side of the driven friction wheel frame 13 is rotatably mounted on the upper part of the main transmission platform 4 through the driven friction wheel frame pin 11, and the other side of the driven friction wheel frame 13 is rotatably connected to the disc spring pull rod adjustment mechanism 3 through the spring pull rod pin 10.

[0029] The disc spring pull rod adjustment mechanism 3 includes a disc spring pull rod 301, a disc spring 302, a disc spring guide ring 1 303, a disc spring guide ring 2 304, a disc spring guide cylinder 305, a thrust bearing 306, a bearing pad 307, an adjustment double nut 308, an adjustment auxiliary sleeve 309, a hydraulic jack 310 and a special adjustment wrench 311. The upper part of the disc spring pull rod 301 is connected to the driven friction wheel frame 13 through the spring pull rod pin 10. The disc spring pull rod 301 passes through the through hole of the main transmission platform 4, the middle part of the disc spring 302 and the bearing pad The through hole of 307, the disc spring pull rod 301 is threaded with the adjusting double nut 308, the adjusting double nut 308 is located at the lower part of the bearing pad 307, the disc spring pull rod 301 and the adjusting double nut 308 are inserted into the adjusting auxiliary sleeve 309, and the adjusting double nut 308 is clamped with a special adjustment wrench 311, the handle of the special adjustment wrench 311 extends out of the strip groove of the adjusting auxiliary sleeve 309, the bottom of the adjusting auxiliary sleeve 309 is connected to the top rod of the hydraulic jack 310, and the hydraulic jack 310 is installed on the platform base 9.

[0030] A thrust bearing 306 is installed on the upper part of the bearing pad 307, and the inner ring of the thrust bearing 306 is connected to the disc spring pull rod 301. The upper part of the thrust bearing 306 is connected to the disc spring guide ring 2 304, and the disc spring guide ring 2 304 is also connected to the bearing pad 307. The inner side of the disc spring guide ring 2 304 is connected to the disc spring guide cylinder 305. A disc spring guide ring 1 303 is installed on the lower part of the top of the main transmission platform 4, and a disc spring 302 is installed between the disc spring guide ring 1 303 and the disc spring guide ring 2 304, and the lower part of the disc spring 302 is stuck between the disc spring guide ring 2 304 and the disc spring guide cylinder 305.

[0031] The coupling includes coupling 1 6 and coupling 2 8. The through shaft of the active friction wheel 2 is installed on the active friction wheel bearing seat 201, and the active friction wheel bearing seat 201 is installed on the active friction wheel base 401. The through shaft of the active friction wheel 2 is connected to coupling 2 8, and coupling 2 8 is connected to the planetary reducer 7. The planetary reducer 7 is installed on the main transmission column 402. The main transmission column 402 is installed on the platform base 9 through the platform connecting bolts 403. The planetary reducer 7 is connected to coupling 1 6, and coupling 1 6 is connected to the main transmission motor 5. The main transmission motor 5 is installed on the platform base 9 through the motor bracket.

[0032] Lifting ears 12 are installed at the four corners of the platform base 9, and the lifting ears 12 are connected to the balance beam of the sling 16 through a wire rope. A lifting ring is installed on the upper part of the balance beam of the sling 16, and the lifting ring is connected to the crane hook 15.

[0033] A method for replacing the main drive and adjusting the amount of the main drive device of a ring cooler without stopping the machine, and its specific implementation method:

[0034] 1) The ring cooler needs to be replaced. The safety protection around the main transmission has been completed and the conditions for safe maintenance are met.

[0035] 2) The main transmission of the ring cooler is damaged and the power is cut off and a sign is posted, which is confirmed by the production, inspection and maintenance parties.

[0036] 3) Remove the wiring from the junction box of the main drive motor 5 of the ring cooler and all cables connected to the main drive.

[0037] 4) Use the main drive butterfly spring pull rod adjustment mechanism 3 of the ring cooler to loosen the adjustment double nut 308 and remove the butterfly spring 302, separate the active friction wheel 2 and the driven friction wheel 1, and separate them from the friction plate 14.

[0038] Working method of the butterfly spring pull rod adjustment mechanism 3: lift the adjusting auxiliary sleeve 309 through the annular cooler hydraulic jack 310, and the adjusting auxiliary sleeve 309 supports the bearing pad 307 during the lifting process. As the hydraulic jack 310 continues to lift, the disc spring guide ring 2 304 of the clamping device is lifted upward. Since the upper edge of the disc spring guide ring 1 303 of the clamping device supports the main transmission platform 4 on the upper part of the active friction wheel 2, the butterfly spring 302 is deformed by force. Use the special adjustment wrench 311 to extend into the adjusting auxiliary sleeve 309 to loosen and remove the adjusting double nut 308, and separate the active friction wheel 2, the driven friction wheel 1 and the friction disk 14.

[0039] 5) The counterweight of the main transmission platform 4 is removed, and the main transmission platform lifting lugs 12 are welded around the main transmission platform 4 of the ring cooler. Before welding the lifting lugs 12, the weld is grooved and welded twice using carbon dioxide shielded welding. After welding, magnetic particle inspection is performed on the lifting weld.

[0040] 6) Use a 150-ton crane and a special sling 16 to connect to the lifting lugs 12 around the main transmission platform 4 through shackles, retract the crane hook 15, and apply force to the sling.

[0041] A balance beam is designed above the hoisting tooling of the main transmission platform 4 of the ring cooler, and a lifting sling is designed below the balance beam to connect the lifting ears 12 around the main transmission platform 4 through shackles. The hoisting tooling of the main transmission platform 4 has a self-balancing function, and the main transmission platform 4 of the ring cooler is stable during hoisting and installation without shaking.

[0042] 7) Remove all the platform connection bolts 403 at the connection between the main transmission column 402 of the ring cooler and the main transmission platform base 9 below. Make a mark during the removal process to prevent deviation during the reinstallation process.

[0043] 8) The crane hook 15 is retracted, the special lifting device 16 is subjected to force, the main transmission platform 4 of the annular cooler is moved outward in the circumferential direction, taken out, and lifted, and placed on the wooden pad on the plane of the maintenance area, the wire rope is removed, and the lifting tools of the main transmission platform 4 of the annular cooler are retracted.

[0044] 9) Remove all guardrails and coupling protection covers above the main transmission platform 4 of the ring cooler to facilitate later reinstallation.

[0045] 10) Remove the outer casing bolts of the low-speed gear coupling 8 of the annular cooler, disengage the housing of the coupling 8, and separate the active friction wheel 2 from the planetary reducer 7.

[0046] 11) Use tools to remove the pin shaft 11 of the driven friction wheel frame, and use a crane to separate the driven friction wheel frame 13 from the main transmission platform 4;

[0047] 12) Remove the driven friction wheel 1 from above the driven friction wheel frame 13.

[0048] 13) Remove the crossbeam 4 of the main transmission platform of the ring cooler.

[0049] 14) Use a crane to hoist and protect the active friction wheel 2, use an electric wrench to loosen the bolts between the flange of the active friction wheel bearing seat 201 and the active friction wheel base 401, and remove the active friction wheel 2.

[0050] 15) Heat the low-speed shaft gear coupling 6 of the active friction wheel 2 and use a hydraulic puller to remove the half coupling.

[0051] 16) Continue to heat the half coupling, clean the surface of the active friction wheel 2 shaft end, and apply grease. When the temperature of the half coupling reaches 720℃, lift the half coupling and install it on the active friction wheel shaft.

[0052] 17) Use a crane to lift back the spare parts of the active friction wheel 2 and restore the flange bolts of the active friction wheel 2.

[0053] 18) Align the planetary reducer 7 of the ring cooler through the coupling 2 8 of the low-speed shaft according to the ring cooler active friction wheel 2, and align the coupling 2 8 and the main drive motor 5 in turn.

[0054] The radial runout and end face runout of the output shaft of the planetary reducer 7 of the ring cooler and the friction wheel shaft of the transmission friction wheel device are not greater than φ0.2mm, and the horizontal error of the planetary reducer 7 is not greater than 1 / 1000.

[0055] The center line of the active friction wheel 2 axis and the center line of the output shaft of the ring cooler planetary reducer 7 are on the same axis, and their extension lines should pass through the center of the ring cooler, and the deviation should not be greater than 2mm.

[0056] Install the annular cooler motor, ensure that the radial circumferential runout and end face circular runout of the output shaft of the main drive motor 5 and the input shaft of the planetary reducer 7 are not greater than φ0.2mm, and then fix the main drive motor 5 on the motor seat.

[0057] 19) Assemble the driven friction wheel 1 and the driven friction wheel frame 13.

[0058] 20) The driven friction wheel frame 13 is installed as a whole above the bracket, the driven friction wheel frame pin 11 is restored, and the driven friction wheel 1 is welded and fixed to the connecting plate of the driven friction wheel frame 13, so that the driven end friction wheel 1 and the active friction wheel 2 are opened at a safe distance of 100 mm.

[0059] 21) Use a crane to lift the platform-specific lifting device 16 to lift the main transmission platform 4 of the annular cooler, move the main transmission platform 4 of the annular cooler toward the inner circumference, reinstall, and lower it, use a portable hydraulic jack 310 to adjust the gap, and restore the platform connection bolts 403.

[0060] 22) The connecting plate between the driven friction wheel 1 of the ring cooler and the driven friction wheel frame 13 is removed, and the driven friction wheel 1 is slowly lowered with the assistance of a portable hydraulic jack 310.

[0061] 23) Reinstall the butterfly spring pull rod 301 and the thrust bearing 306, reinstall the adjusting double nut 308, and adjust the active friction wheel 2 and the driven friction wheel 1.

[0062] The position of the active friction wheel 2 is adjusted, and the other two friction wheels are used as the reference, such as Figure 6 As shown, the three active friction wheels 2 should be on the circumferential position of the same radius of the annular cooler, and the radius deviation of the actual position of the three wheels shall not be greater than 1mm, and the angular position of the three sets of driving devices shall be ensured, and the angular deviation is ±0.002mm; the center lines of the two axes of the active friction wheel 2 and the driven friction wheel 1 and the plumb plane are adjusted, the center lines of the two axes of the active friction wheel 2 and the driven friction wheel 1 should be in the same plumb plane, and the deviation shall not be greater than 0.5mm, and the misalignment of the two wheel ends of the active friction wheel 2 and the driven friction wheel 1 shall not be greater than 1mm.

[0063] 24) Use the main drive butterfly spring pull rod adjustment mechanism 3 of the annular cooler and the hydraulic jack 310 to press the pointer of the clamping device to the mark line of the pressure of 550kN, and use the special adjustment wrench 311 to tighten the adjustment double nut 308.

[0064] The butterfly spring pull rod adjustment mechanism 3 is used in pairs, and the pressure characteristic curve provided by the manufacturer is checked to calculate the compression amount of the butterfly spring 302 when the pressure is 550kN.

[0065] 25) Connect the main drive motor 5, restore the corresponding safety protection devices, and restore the coupling guard.

[0066] 26) Remove the sign from the main drive of the ring cooler and supply power.

[0067] 27) Use the lead pressing method to quickly adjust the friction force of the ring cooler friction wheel. Use a lead wire with a diameter of ф4mm~6mm to press it onto the ring cooler friction disk 14, and roll it through the active friction wheel 2 and the driven friction wheel 1. Use a vernier caliper to measure the thickness of the lead wire.

[0068] The lead pressing method is used to quickly adjust the friction force of the friction wheel of the ring cooler. The lead pressing method is to place a fuse with a length of 300mm and a diameter of ф4mm~6mm on the friction disk 14 near the three sets of ring cooler main drives, and their corresponding positions are the same. As the active friction wheel 2 friction drive bites the lead wire, it is rolled into various basic shapes after passing through the stress points A and B. The shape and thickness of the pressed lead wire are analyzed to determine the preload force of the three sets of ring cooler main drive friction wheels, whether the contact surface between the wheel surface and the friction disk 14 is uniform, and the size of the friction wheel load.

[0069] 28) Compare the current operating conditions of the three main drive motors 5 of the ring cooler.

[0070] The currents of the three main drive motors 5 are monitored online in real time. When the current difference exceeds 10%, an alarm is triggered, and when the current difference exceeds 20%, the machine is shut down. The main drive friction wheel 2 of the ring cooler is basically replaced without stopping, and the impact on the sintering machine is basically zero.

[0071] The present utility model is not limited to the above-mentioned implementation modes, and anyone should be aware of the structural changes made under the inspiration of the present utility model. Any technical solutions that are the same or similar to the present utility model fall within the protection scope of the present utility model.

[0072] The technology, shape and structure parts not described in detail in the present invention are all known technologies.

Claims

1. A main drive device for a ring cooler, characterized in that: It includes a driven friction wheel and an active friction wheel, wherein the driven friction wheel and the active friction wheel are in contact with each other through a friction disc, the driven friction wheel is located above the active friction wheel, the driven friction wheel is rotatably mounted on a driven friction wheel frame, the driven friction wheel frame is connected to a platform base through a disc spring pull rod adjustment mechanism, and the disc spring pull rod adjustment mechanism adjusts the distance between the driven friction wheel and the active friction wheel; The driven friction wheel frame is installed on the upper part of the main transmission platform, the active friction wheel is installed on the main transmission platform, the active friction wheel is connected to the main transmission motor through a coupling, the main transmission motor drives the active friction wheel to rotate, the main transmission platform is installed on the platform base, and the four corners of the platform base are provided with lifting ears.

2. The main drive device of the ring cooler according to claim 1, characterized in that: One side of the driven friction wheel frame is rotatably mounted on the upper part of the main transmission platform through the driven friction wheel frame pin shaft, and the other side of the driven friction wheel frame is rotatably connected to the disc spring pull rod adjustment mechanism through the spring pull rod pin shaft.

3. The main drive device of the ring cooler according to claim 2, characterized in that: The disc spring pull rod adjustment mechanism includes a disc spring pull rod, a disc spring and a hydraulic jack. The upper part of the disc spring pull rod is connected to the driven friction wheel frame through a spring pull rod pin shaft. The disc spring pull rod passes through the through hole of the main transmission platform, the middle part of the disc spring and the through hole of the bearing pad. The disc spring pull rod is threaded with an adjustment double nut, and the adjustment double nut is located at the lower part of the bearing pad. The disc spring pull rod and the adjustment double nut are both inserted into the inside of the adjustment auxiliary sleeve. A special adjustment wrench is clamped on the adjustment double nut. The handle of the special adjustment wrench extends out of the strip groove of the adjustment auxiliary sleeve. The bottom of the adjustment auxiliary sleeve is connected to the top rod of the hydraulic jack. The hydraulic jack is installed on the platform base. A thrust bearing is installed on the upper part of the bearing pad, the inner ring of the thrust bearing is connected to the disc spring pull rod, the upper part of the thrust bearing is connected to the disc spring guide ring 2, the disc spring guide ring 2 is also connected to the bearing pad, the inner side of the disc spring guide ring 2 is connected to the disc spring guide cylinder, the disc spring guide ring 1 is installed on the lower part of the top of the main transmission platform, the disc spring is installed between the disc spring guide ring 1 and the disc spring guide ring 2, and the lower part of the disc spring is stuck between the disc spring guide ring 2 and the disc spring guide cylinder.

4. The main drive device of the ring cooler according to claim 1, characterized in that: The coupling includes coupling 1 and coupling 2. The through shaft of the active friction wheel is installed on the active friction wheel bearing seat, the active friction wheel bearing seat is installed on the active friction wheel base, the through shaft of the active friction wheel is connected to coupling 2, coupling 2 is connected to the planetary reducer, the planetary reducer is installed on the main transmission column, the main transmission column is installed on the platform base through the platform connecting bolts, the planetary reducer is connected to coupling 1, coupling 1 is connected to the main transmission motor, and the main transmission motor is installed on the platform base through the motor bracket.

5. The main drive device of the ring cooler according to claim 1, characterized in that: Lifting ears are installed at the four corners of the platform base, and the lifting ears are connected to the balance beam of the sling through steel wire ropes. A lifting ring is installed on the upper part of the balance beam of the sling, and the lifting ring is connected to the crane hook.

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