A brake wheel hot-installation automated production line

Abstract

The present invention discloses an automatic production line for hot-installing a brake wheel, which relates to the field of crane technology. A reducer conveying mechanism and a brake wheel conveying mechanism are both composed of a conveying frame, a plurality of conveying rollers and a motor. A material frame for containing the reducer and the brake wheel is disposed on the upper part of the reducer conveying mechanism and the brake wheel conveying mechanism. A lifting mechanism for lifting the material frame is disposed on the lower part of the reducer conveying mechanism and the brake wheel conveying mechanism. A gripping mechanism for adsorbing the lifted brake wheel and assembling the lifted reducer is disposed on one side of the brake wheel conveying mechanism. The present invention realizes high-precision and high-efficiency hot-installation operation of the brake wheel by automating the transportation, adsorption, heating, assembly and cooling of the reducer and the brake wheel, and greatly reduces the labor intensity of workers, improves work efficiency, and provides a strong guarantee for the safety of the assembly operation of the brake wheel.

Description

Technical Field

[0001] The invention relates to the technical field of cranes, and in particular to an automatic production line for hot-installation of brake wheels. Background Art

[0002] The brake wheel is a key component used in mechanical and electrical systems to control motion and provide braking force. It is usually used in reducers, transmission devices and other mechanical equipment. At present, the assembly automation of the brake wheel on the reducer is low, and most of them are assembled by manual operation. There are still the following deficiencies in the assembly process:

[0003] 1. When assembling the brake wheel, workers usually need to manually lift the reducer and brake wheel through a crane for assembly. This assembly method not only requires the lifting equipment to lift the reducer and brake wheel for a long time, but also requires manual loading and unloading, which wastes manpower and physics;

[0004] 2. In order to facilitate the assembly of the brake wheel, the hot installation method is often used. However, when heating the brake wheel, the staff needs to lift the brake wheel and install it on the heating equipment. After the brake wheel is heated, it needs to be lifted and assembled again. This is not only time-consuming and laborious, but also poses a great safety hazard.

[0005] Therefore, there is an urgent need for a brake wheel hot-installation automated production line that can overcome the above-mentioned disadvantages. Summary of the invention

[0006] In order to overcome the deficiencies in the background technology, the present invention discloses an automated production line for hot-installation of a brake wheel. The present invention realizes high-precision and high-efficiency hot-installation operation of the brake wheel through automated transportation, adsorption, heating, assembly and cooling of the reducer and the brake wheel, thereby greatly reducing the labor intensity of workers, improving work efficiency and providing a strong guarantee for the safety of the assembly operation of the brake wheel.

[0007] To achieve the above object, the present invention adopts the following technical solution:

[0008] A brake wheel hot-loading automatic production line comprises a reducer conveying mechanism for conveying a reducer, and a brake wheel conveying mechanism which is arranged in parallel with the reducer conveying mechanism and is used to convey a brake wheel. The reducer conveying mechanism and the brake wheel conveying mechanism are both composed of a conveying frame, a plurality of conveying rollers and a motor. The reducer conveying mechanism and the brake wheel conveying mechanism are both provided with a material frame for holding the reducer and the brake wheel at the top. The reducer conveying mechanism and the brake wheel conveying mechanism are provided with a lifting mechanism for lifting the material frame at the bottom. The lifting mechanism comprises a lifting base. A plurality of rollers which can be used to convey the reducer conveying mechanism and the brake wheel conveying mechanism are evenly distributed on the top of the lifting base. A lifting rod extends through the gap between several conveying rollers in the conveying mechanism, and a grasping mechanism is provided on one side of the brake wheel conveying mechanism for adsorbing the lifted brake wheel and assembling it with the lifted reducer. The grasping mechanism includes a base, a lifting platform is provided on the upper part of the base, a telescopic arm is provided on the upper part of the lifting platform, and the telescopic arm is perpendicular to the brake wheel conveying mechanism and can be moved and adjusted toward the brake wheel conveying mechanism. An electromagnetic suction cup that can rotate downward ninety degrees and is used to adsorb the brake wheel is provided at one end of the telescopic arm close to the brake wheel conveying mechanism, and a cooling mechanism is provided on one side of the tail of the reducer conveying mechanism for cooling the reducer assembled with the brake wheel.

[0009] Furthermore, an outer wall on one side of the material frame is provided with an induction switch for controlling the reducer conveying mechanism and the brake wheel conveying mechanism to stop conveying and controlling the lifting of the lifting rod in the lifting mechanism. The upper surface of the lifting base is provided with two support rods which are respectively located on one side of the reducer conveying mechanism and the brake wheel conveying mechanism. An infrared transmitter is provided on the upper end of the support rod, which is in the same plane as the induction switch on one side of the material frame and is used to send a control signal to the induction switch.

[0010] Furthermore, the roller surfaces of several conveying rollers in the reducer conveying mechanism and the brake wheel conveying mechanism are provided with annular grooves located at the same position of the conveying roller body and coaxially arranged with the conveying roller. The lower surface of the material frame is provided with a convex ridge arranged along the length direction of the material frame and adapted to the length of the material frame. The convex ridge is clamped in the annular groove on the conveying roller and matches the gap with the annular groove.

[0011] Furthermore, a plurality of slots are evenly distributed on the lower surface of the material frame, which correspond to and match the lifting rods in the lifting mechanism one by one, and the cross-section of the slots at the notch is an isosceles trapezoidal expansion structure.

[0012] Furthermore, a sliding seat is provided on the upper surface of the lifting platform, and the telescopic arm is slidably installed on the upper part of the sliding seat. A driving motor A is provided on one side of the sliding seat. A rack is provided along the length direction of the telescopic arm on the side of the telescopic arm facing the driving motor A, and a gear meshing with the rack is provided at the output end of the driving motor A.

[0013] Furthermore, the telescopic arm is hingedly connected to the electromagnetic suction cup through a rotating shaft. A drive motor B is provided on one side of the end of the telescopic arm close to the electromagnetic suction cup. The output shaft of the drive motor B is provided with a drive gear. One end of the rotating shaft is provided with a transmission gear meshing with the drive gear on the output shaft of the drive motor B.

[0014] Furthermore, a heating mechanism is provided on the upper part of the base, and the heating mechanism includes a power supply arranged on the base and an induction coil located on the upper part of the base.

[0015] Furthermore, the cooling mechanism includes a support rod, a connecting rod, a nozzle and a water pipe. A support rod is provided on one side of the tail of the reducer conveying mechanism. A connecting rod is rotatably installed on the upper end of the support rod. A nozzle is provided on the end of the connecting rod. The nozzle is connected to the water supply equipment through a water pipe.

[0016] Furthermore, a C-shaped tube connected to the nozzle is provided at the nozzle opening of the nozzle, and nozzles are evenly distributed on the inner annular surface of the C-shaped tube.

[0017] Furthermore, a temperature sensor is provided at the end of the C-shaped tube.

[0018] Compared with the prior art, the beneficial effects of the present invention are: by providing a lifting mechanism, the reducer and the brake wheel to be assembled can be lifted, thereby facilitating subsequent assembly operations;

[0019] By setting up induction switches and infrared transmitters, control signals can be received through the movement of the material frame, which not only enables the lifting mechanism to accurately lift the material frame, but also can control the stop of the reducer conveying mechanism and the brake wheel conveying mechanism, providing strong support for the staff's grasping and processing operations;

[0020] By providing the annular groove and the convex ridge, the material frame can maintain horizontal and stable movement in the same straight line on the conveying roller, thereby ensuring that when the infrared emitter and the induction switch cooperate with each other, the lifting mechanism can accurately lift the material frame;

[0021] By setting the slots and using the plug-in cooperation between the lifting rod and the slots, the material frame can be lifted horizontally and stably, thereby ensuring the safety and stability of the reducer and brake wheel in the material frame;

[0022] By setting an electromagnetic suction cup that can rotate 90 degrees, when adsorbing the brake wheel, the electromagnetic suction cup can be rotated downward 90 degrees, and the electromagnetic suction cup and the end surface of the brake wheel are adsorbed correspondingly. When assembling the brake wheel, the electromagnetic suction cup is rotated upward 90 degrees to make the brake wheel correspond to the reducer, which can facilitate subsequent assembly operations;

[0023] By setting up a lifting platform and a slidable telescopic arm, the lifting and lowering adjustment of the telescopic arm and the adjustment of the position of the electromagnetic suction cup at the end of the telescopic arm can be realized, thereby providing strong support for the subsequent adsorption and assembly of the brake wheel;

[0024] By setting up a heating mechanism, not only can the brake wheel be heated, which greatly helps the subsequent assembly of the brake wheel, but it can also be directly adsorbed and heated by the electromagnetic suction cup without repeated lifting;

[0025] By setting up a cooling mechanism, the reducer can be cooled after hot installation, which not only ensures the firmness and stability of the brake wheel installation, but also facilitates the processing of the reducer in the next step;

[0026] The present invention realizes high-precision and high-efficiency hot-installation operation of the brake wheel through automated transportation, adsorption, heating, assembly and cooling of the reducer and the brake wheel, and also greatly reduces the labor intensity of workers, improves work efficiency, and provides a strong guarantee for the safety of the assembly operation of the brake wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the present invention;

[0028] Figure 2 It is a schematic diagram of the structure of the reducer conveying mechanism of the present invention;

[0029] Figure 3 It is a schematic diagram of the structure of the conveying roller of the present invention;

[0030] Figure 4 It is a schematic diagram of the material frame structure of the present invention;

[0031] Figure 5 It is a schematic diagram of the structure of the grabbing and heating mechanism of the present invention;

[0032] Figure 6 It is a schematic diagram of the cooling mechanism structure of the present invention.

[0033] In the figure: 1. reducer conveying mechanism; 2. brake wheel conveying mechanism; 3. grabbing mechanism; 4. lifting mechanism; 5. cooling mechanism; 6. material frame; 7. conveying roller; 8. induction switch; 9. infrared transmitter; 10. conveying frame; 11. lifting base; 12. support rod; 13. lifting rod; 14. annular groove; 15. slot; 16. ridge; 17. telescopic arm; 18. drive motor A; 19. rack; 20. sliding seat; 21. lifting platform; 22. base; 23. drive gear; 24. drive motor B; 25. transmission gear; 26. rotating shaft; 27. electromagnetic suction cup; 28. heating mechanism; 29. ​​temperature sensor; 30. nozzle; 31. C-tube; 32. nozzle; 33. connecting rod; 34. support rod; 35. water pipe. DETAILED DESCRIPTION

[0034] The technical solution of the present invention will be described below in conjunction with the drawings in the embodiments of the present invention. In the description, it should be understood that if there are terms such as "upper", "lower", "front", "back", "left", "right", etc. indicating directions or positional relationships, they only correspond to the drawings of the present invention and are for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific direction.

[0035] Please refer to the instruction manual Figure 1-6 , the present invention provides a technical solution:

[0036] Embodiment 1, a brake wheel hot-installation automated production line, comprising a reducer conveying mechanism 1 for conveying a reducer, and a brake wheel conveying mechanism 2 which is arranged in parallel with the reducer conveying mechanism 1 and is used to convey a brake wheel, the reducer conveying mechanism 1 and the brake wheel conveying mechanism 2 are both common roller conveyors, both of which are composed of a conveying frame 10, a plurality of conveying rollers 7 and a motor, a certain interval is left between the plurality of conveying rollers 7, and the reducer conveying mechanism 1 and the brake wheel conveying mechanism 2 convey in the same direction and at the same speed;

[0037] The reducer conveying mechanism 1 and the brake wheel conveying mechanism 2 are both provided with a material frame 6 for containing the reducer and the brake wheel at the top, and the reducer conveying mechanism 1 and the brake wheel conveying mechanism 2 are provided with a lifting mechanism 4 for lifting the material frame 6 at the bottom. Specifically, the lifting mechanism 4 includes a lifting base 11, and a plurality of lifting rods 13 that can pass through the gaps between the plurality of conveying rollers 7 in the reducer conveying mechanism 1 and the brake wheel conveying mechanism 2 are evenly distributed on the top of the lifting base 11. In order to ensure that the lifting mechanism 4 can accurately lift the reducer and the brake wheel to be processed, an outer wall on one side of the material frame 6 is provided with an induction switch 8 for controlling the reducer conveying mechanism 1 and the brake wheel conveying mechanism 2 to stop conveying and controlling the lifting of the lifting rod 13 in the lifting mechanism 4. The upper surface of the lifting base 11 is provided with two support rods 12 respectively located on one side of the reducer conveying mechanism 1 and the brake wheel conveying mechanism 2. The upper end of the support rod 12 is provided with an infrared transmitter 9 that is in the same plane as the induction switch 8 on one side of the material frame 6 and is used to send a control signal to the induction switch 8;

[0038] One side of the brake wheel conveying mechanism 2 is provided with a grasping mechanism 3 for adsorbing the lifted brake wheel and assembling with the lifted reducer. Specifically, the grasping mechanism 3 includes a base 22, a lifting platform 21 is provided on the upper part of the base 22, a sliding seat 20 is provided on the upper surface of the lifting platform 21, and a telescopic arm 17 is slidably matched with the brake wheel conveying mechanism 2 and capable of moving and adjusting toward the brake wheel conveying mechanism 2 on the sliding seat 20. In order to realize the sliding adjustment of the telescopic arm 17, the telescopic arm 17 is slidably installed on the upper part of the sliding seat 20, a driving motor A18 is provided on one side of the sliding seat 20, and a rack 19 arranged along the length direction of the telescopic arm 17 is provided on the side of the telescopic arm 17 facing the driving motor A18. The output end of the motor A18 is provided with a gear meshing with the rack 19, and the end of the telescopic arm 17 close to the brake wheel conveying mechanism 2 is provided with an electromagnetic suction cup 27 that can rotate downward by ninety degrees and is used to absorb the brake wheel. A cooling mechanism 5 is provided on one side of the tail of the reducer conveying mechanism 1 for cooling the reducer equipped with the brake wheel. The cooling mechanism 5 includes a support rod 34, a connecting rod 33, a nozzle 32 and a water pipe 35. A support rod 34 is provided on one side of the tail of the reducer conveying mechanism 1. A connecting rod 33 is rotatably installed on the upper end of the support rod 34. The connecting rod 33 and the support rod 34 can be connected through a universal seat. A nozzle 32 is provided at the end of the connecting rod 33. The nozzle 32 is connected to the water supply equipment through a water pipe 35.

[0039] When the brake wheel is hot-fitted, the reducer is hoisted by the overhead crane to the material frame 6 on the reducer conveying mechanism 1 for conveying, and the brake wheel is placed on the material frame 6 on the brake wheel conveying mechanism 2 for conveying. The reducer conveying mechanism 1 and the material frame 6 on the brake wheel conveying mechanism 2 are arranged in a one-to-one correspondence. When the material frame 6 containing the reducer runs to the lifting mechanism 4, the infrared signal emitted by the infrared transmitter 9 on the lifting base 11 is received by the induction switch 8 on one side of the material frame 6. After receiving the infrared signal, the induction switch 8 converts it into a control signal, which controls the reducer conveying mechanism 1 and the brake wheel conveying mechanism 2 to stop conveying, and also controls the lifting rod 13 to rise, thereby lifting the material frame 6.

[0040] The staff can first lift the telescopic arm 17 through the lifting platform 21, and then use the drive motor A18 to drive the electromagnetic suction cup 27 at the end of the telescopic arm 17 to move to the top of the raised brake wheel, turn the electromagnetic suction cup 27 downward to absorb the brake wheel and then turn it to correspond to the reducer, and then drive the telescopic arm 17 to move the brake wheel to the assembly position on the reducer for assembly. Hot assembly can be used during assembly. After the assembly is completed, the electromagnetic suction cup 27 is controlled to disengage from the brake wheel, and the telescopic arm 17 is reset. Then the lifting rod 13 of the lifting mechanism 4 is lowered and the reducer conveying mechanism 1 and the brake wheel conveying mechanism 2 are started. When the reducer with assembled brake wheel is transported to the cooling mechanism 5, the nozzle 32 can be used to spray cooling water toward the reducer for cooling treatment. After cooling is completed, it is transported to the next process by the reducer conveying mechanism 1.

[0041] In the second embodiment, when the lifting mechanism 4 lifts up the material frame 6 containing the reducer or the brake wheel, if the material frame 6 is offset, the infrared emitter 9 cannot correspond to the induction switch 8, which also affects the subsequent assembly operation. In order to ensure that the infrared emitter 9 can accurately correspond to the induction switch 8 on one side of the material frame 6, the roller surfaces of several conveying rollers 7 in the reducer conveying mechanism 1 and the brake wheel conveying mechanism 2 are provided with an annular groove 14 located at the same position of the roller body of the conveying roller 7 and coaxially arranged with the conveying roller 7. The lower surface of the material frame 6 is provided with a convex rib 16 arranged along the length direction of the material frame 6 and adapted to the length of the material frame 6. The convex rib 16 is clamped in the annular groove 14 on the conveying roller 7 and is gap-matched with the annular groove 14. The cooperation between the convex rib 16 and the annular groove 14 on the conveying roller 7 can ensure that the material frame 6 can maintain horizontal and stable transportation on the same straight line. This method not only provides strong support for the subsequent corresponding cooperation between the infrared emitter 9 and the induction switch 8, but also enables the lifting rod 13 in the subsequent lifting mechanism 4 to accurately lift the material frame 6.

[0042] Embodiment 3, when jacking up the material frame 6 containing the reducer or the brake wheel, if the reducer or the material frame is offset during jacking up, it is very easy to cause the material frame 6 to tilt, and in severe cases, it may also cause the reducer or the brake wheel to fall down. In order to ensure that the lifting mechanism 4 can lift the material frame 6 horizontally and stably, a number of slots 15 corresponding to and adapted to the lifting rods 13 in the lifting mechanism 4 are evenly distributed on the lower surface of the material frame 6. The cross-section of the slots 15 at the notch is an isosceles trapezoidal expansion structure. By utilizing the corresponding cooperation of the infrared transmitter 9 and the induction switch 8, and the cooperation of the convex ridge 16 and the annular groove 14, when the material frame 6 stops moving, the lifting rod 13 corresponds to the slot 15 on the lower surface of the material frame 6 one by one. After the lifting rod 13 is lifted, it can be accurately inserted into the slot 15 through the expansion structure, thereby ensuring the horizontal stability of the material frame 6 when it is lifted.

[0043] Embodiment 4, in order to realize the rotation adjustment of the electromagnetic suction cup 27, the telescopic arm 17 is hingedly connected to the electromagnetic suction cup 27 through the rotating shaft 26, and a driving motor B24 is provided on one side of the end of the telescopic arm 17 close to the electromagnetic suction cup 27, and the output shaft of the driving motor B24 is provided with a driving gear 23, and one end of the rotating shaft 26 is provided with a transmission gear 25 meshing with the driving gear 23 on the output shaft of the driving motor B24. The driving rotation of the driving motor B24 not only greatly reduces the working difficulty of the staff, but also ensures the safety and stability of the rotation adjustment of the electromagnetic suction cup 27.

[0044] Embodiment 5: In order to realize hot-installation heating of the brake wheel, a heating mechanism 28 is further provided on the upper part of the base 22. The heating mechanism 28 includes a power supply arranged on the base 22 and an induction coil located on the upper part of the base 22. After the electromagnetic suction cup 27 adsorbs the end face of the brake wheel, the staff can move the telescopic arm 17 to the end away from the reducer. When the brake wheel is located above the induction coil in the heating mechanism 28, the telescopic arm 17 is lowered by using the lifting platform 21 so that the induction coil is inserted into the brake wheel hole to complete the heating of the brake wheel. After heating is completed, the telescopic arm 17 is lifted and moved to the reducer for assembly.

[0045] Embodiment six, in order to improve the cooling efficiency of the cooling mechanism 5 for the hot-mounted brake wheel, a C-tube 31 connected to the nozzle 32 is provided at the nozzle of the nozzle 32, and nozzles 30 are evenly distributed on the inner annular surface of the C-tube 31. A temperature sensor 29 is provided at the end of the C-tube 31. The C-tube 31 is rotated and moved to a position around the outer ring of the brake wheel by using a connecting rod 33, and then the brake wheel is fully and evenly cooled by using the nozzle 30. The temperature sensor 29 can monitor the temperature of the brake wheel in real time, and stop cooling when it drops to an appropriate temperature.

[0046] The parts of the present invention that are not described in detail are prior art. It is obvious to those skilled in the art that the present invention is not limited to the details of the above-mentioned exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the above-mentioned embodiments should be regarded as exemplary and non-restrictive. The scope of the present invention is limited by the attached claims rather than the above description. Therefore, it is intended to include all changes within the meaning and scope of the equivalent elements of the claims in the present invention, and any figure marks in the claims should not be regarded as limiting the content of the claims involved.

Claims

1. An automatic production line for hot-loading a brake wheel, comprising a reducer conveying mechanism (1) for conveying a reducer, and a brake wheel conveying mechanism (2) arranged in parallel with the reducer conveying mechanism (1) and for conveying a brake wheel, characterized in that: The reducer conveying mechanism (1) and the brake wheel conveying mechanism (2) are both composed of a conveying frame (10), a plurality of conveying rollers (7) and a motor. The reducer conveying mechanism (1) and the brake wheel conveying mechanism (2) are both provided with a material frame (6) for containing the reducer and the brake wheel at the top. The reducer conveying mechanism (1) and the brake wheel conveying mechanism (2) are provided with a lifting mechanism (4) for lifting the material frame (6) at the bottom. The lifting mechanism (4) includes a lifting base (11). The upper part of the lifting base (11) is evenly distributed with a plurality of rollers that can pass through the lifting base (11). A lifting rod (13) extends through the gap between the reducer conveying mechanism (1) and the plurality of conveying rollers (7) in the brake wheel conveying mechanism (2); a gripping mechanism (3) for adsorbing the lifted brake wheel and assembling the lifted reducer is provided on one side of the brake wheel conveying mechanism (2); the gripping mechanism (3) comprises a base (22); a lifting platform (21) is provided on the upper part of the base (22); a lifting platform (21) is provided on the upper part of the lifting platform (21) and is perpendicular to the brake wheel conveying mechanism (2) and can move toward the brake wheel conveying mechanism (2). A telescopic arm (17) is provided at one end of the telescopic arm (17) close to the brake wheel conveying mechanism (2) and is provided with an electromagnetic suction cup (27) which can be rotated downward by 90 degrees and is used to absorb the brake wheel. A heating mechanism (28) is also provided on the upper part of the base (22). The heating mechanism (28) includes a power supply arranged on the base (22) and an induction coil located on the upper part of the base (22). A cooling mechanism (5) is provided on one side of the tail of the reducer conveying mechanism (1) for cooling the reducer equipped with the brake wheel. The mechanism (5) comprises a support rod (34), a connecting rod (33), a nozzle (32) and a water pipe (35). A support rod (34) is provided on one side of the tail of the reducer conveying mechanism (1). A connecting rod (33) is rotatably mounted on the upper end of the support rod (34). A nozzle (32) is provided at the end of the connecting rod (33). A C-shaped tube (31) connected to the nozzle (32) is provided at the nozzle opening of the nozzle (32). Nozzles (30) are evenly distributed on the inner annular surface of the C-shaped tube (31). The nozzle (32) is connected to a water supply device via a water pipe (35).

2. The automatic production line for heat-shrinking of brake wheels according to claim 1 is characterized in that: An induction switch (8) for controlling the reducer conveying mechanism (1) and the brake wheel conveying mechanism (2) to stop conveying and controlling the lifting of a lifting rod (13) in the lifting mechanism (4) is provided on the outer wall of one side of the material frame (6). Two support rods (12) are provided on the upper part of the lifting base (11) and are respectively located on one side of the reducer conveying mechanism (1) and the brake wheel conveying mechanism (2). An infrared transmitter (9) is provided at the upper end of the support rod (12) and is located in the same plane as the induction switch (8) on one side of the material frame (6) and is used to send a control signal to the induction switch (8).

3. The automatic production line for heat-shrinking of brake wheels according to claim 2 is characterized in that: The roller surfaces of the plurality of conveying rollers (7) in the reducer conveying mechanism (1) and the brake wheel conveying mechanism (2) are all provided with an annular groove (14) located at the same position of the roller body of the conveying roller (7) and arranged coaxially with the conveying roller (7); the lower surface of the material frame (6) is provided with a convex ridge (16) arranged along the length direction of the material frame (6) and matching the length of the material frame (6); the convex ridge (16) is clamped in the annular groove (14) on the conveying roller (7) and is clearance-matched with the annular groove (14).

4. The automatic production line for heat-shrinking of brake wheels according to claim 3 is characterized in that: A plurality of slots (15) are evenly distributed on the lower surface of the material frame (6) and correspond to and fit the lifting rods (13) in the lifting mechanism (4) one by one. The cross section of the slots (15) at the notch is an isosceles trapezoidal expansion structure.

5. The automatic production line for heat-shrinking of brake wheels according to claim 1 is characterized in that: A sliding seat (20) is provided on the upper surface of the lifting platform (21), and the telescopic arm (17) is slidably mounted on the upper part of the sliding seat (20). A driving motor A (18) is provided on one side of the sliding seat (20), and a rack (19) arranged along the length direction of the telescopic arm (17) is provided on the side of the telescopic arm (17) facing the driving motor A (18). A gear meshing with the rack (19) is provided at the output end of the driving motor A (18).

6. The automatic production line for heat-shrinking of brake wheels according to claim 1 is characterized in that: The telescopic arm (17) is hingedly connected to the electromagnetic suction cup (27) via a rotating shaft (26); a driving motor B (24) is provided on one side of the end of the telescopic arm (17) close to the electromagnetic suction cup (27); an output shaft of the driving motor B (24) is provided with a driving gear (23); and a transmission gear (25) meshing with the driving gear (23) on the output shaft of the driving motor B (24) is provided at one end of the rotating shaft (26).

7. The automatic production line for heat-shrinking of brake wheels according to claim 1 is characterized in that: A temperature sensor (29) is provided at the end of the C-shaped tube (31).

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