Friction plate heat treatment equipment for wet-type multi-plate brake

Abstract

The invention relates to the technical field of friction plate heat treatment, and discloses friction plate heat treatment equipment for a wet-type multi-plate brake, the friction plate heat treatment equipment comprises a base, a heat treatment equipment body connected with the base and a coil on the heat treatment equipment body, the top of the base is provided with a first rotating mechanism, and the first rotating mechanism comprises a column body, a first rotating shaft and a second rotating shaft; the column body is rotationally connected to the base, a driving mechanism is arranged on the base, and the driving mechanism is used for driving the column body to rotate; the first disc body is fixed to the column body, and a limiting mechanism is arranged on the first disc body; friction plates to be subjected to heat treatment are placed on the limiting mechanism to be fixed, the disc body is driven to rotate through work of the driving mechanism, the friction plates are sequentially conveyed to the heating area, the cooling area and the discharging area, and continuous and efficient heat treatment operation is achieved. Compared with a traditional single-group processing mode, the equipment has the advantages that the production efficiency is remarkably improved, and the problem of periodic delay is effectively solved.

Description

Technical Field

[0001] This invention relates to the technical field of friction pad heat treatment, specifically to a friction pad heat treatment device for wet multi-disc brakes. Background Technology

[0002] The superior performance of wet multi-disc brake friction pads largely benefits from their sophisticated heat treatment process. This process, through precise control of heating, holding, and cooling, aims to optimize the microstructure of the friction pad matrix material, thereby endowing it with the required hardness, strength, wear resistance, and resistance to thermal fading. The core of this type of equipment lies in the perfect combination of dynamic uniform heating and efficient quenching.

[0003] The process begins with mounting the friction plates onto a high-speed rotating mandrel. Then, within the sealed cavity of the equipment, a concentrated heat source generated by an electric heating coil provides annular heating to the rotating friction plates. This rotational motion ensures uniform heating of each friction plate, and indeed every part thereof, effectively preventing deformation and stress concentration caused by temperature differences.

[0004] During this process, the quenching medium (usually a specific type of quenching oil) is precisely sprayed or immersed on the surface of the high-speed rotating friction plates. The agitation caused by the rotation not only instantly removes a large amount of heat, achieving rapid and uniform cooling and promoting the transformation of austenite into high-hardness martensite, but also further reduces quenching deformation, ensuring dimensional consistency of the product. After quenching, the friction plates still need to be cleaned and tempered according to standard procedures to eliminate internal stress, adjust hardness, and improve toughness.

[0005] In current friction plate heat treatment processes, the operating table can only heat a single set of friction plates at a time, followed by cooling them in water or oil. Because the entire set of friction plates must complete the quenching process before the treated plates can be removed and a new set replaced, this results in significant periodic delays in production and severely restricts overall efficiency. Therefore, a friction plate heat treatment device suitable for wet multi-disc brakes is proposed. Summary of the Invention

[0006] (a) Technical problems to be solved

[0007] To address the shortcomings of existing technologies, this invention provides a friction pad heat treatment device for wet multi-disc brakes, which can efficiently and continuously complete the heat treatment of multiple sets of friction pads, effectively overcoming the periodic delay problem caused by the single-set processing mode of existing operating tables, and solving the problem of low efficiency in existing friction pad heat treatment processes.

[0008] (II) Technical Solution

[0009] To achieve the above objectives, the present invention provides the following technical solution: a friction pad heat treatment device for a wet multi-plate brake, comprising a base, a heat treatment device body connected to the base, and a coil on the heat treatment device body. A rotating mechanism is provided on the top of the base. The rotating mechanism includes: a column rotatably connected to the base, with a driving mechanism on the base for driving the column to rotate; and a disc fixed to the column, with a limiting mechanism on the disc for limiting the position of the friction pad. The rotation of the column causes the friction pad to be sequentially transported to the heating zone, cooling zone, and discharge zone.

[0010] Furthermore, a frame is provided at the top of the base, and a rotating mechanism two is provided at the bottom of the first plate. The rotating mechanism two includes:

[0011] Gear 2, which is rotatably connected to the frame, and the frame is equipped with a motor that drives gear 2 to rotate;

[0012] Gear ring two is rotatably connected to the bottom of disc body one. Gear three is rotatably connected to the bottom of disc body one. Gear three meshes with gear ring two. Gear ring two meshes with gear two. Gear three is connected to the limiting mechanism.

[0013] Furthermore, a support base is provided on the top of the base, and a moving mechanism for controlling the lateral movement of the heat treatment equipment body is provided on the top of the support base, and a support mechanism is provided on the top of the frame.

[0014] Furthermore, a transmission mechanism is provided at the top of the frame. When the moving mechanism is working, it drives the transmission mechanism and causes the support mechanism to extend around the limiting mechanism to support the friction plate.

[0015] Furthermore, the moving mechanism includes:

[0016] A bearing housing, which is fixed to the top of the support base;

[0017] Motor 1 is fixed to one side of the bearing housing. The output shaft of Motor 1 is fixed with a shaft body. A slider 1 is threadedly connected to the outer side wall of the shaft body. The slider 1 is fixedly connected to the body of the heat treatment equipment.

[0018] Furthermore, the support mechanism includes:

[0019] Slider three, which is fixed to the top of the frame;

[0020] The second screw is rotatably connected to the third slider, and a support plate is fixed on one side of the third slider.

[0021] Furthermore, the transmission mechanism includes a commutator, the input end of which is connected to the shaft, and the output end of which is connected to the screw.

[0022] Furthermore, the limiting mechanism includes:

[0023] A rod body one is disposed on a disc body one, and a connecting plate is fixed to the inner side wall of the rod body one;

[0024] A screw rod is threadedly connected to the connecting plate. A slider is rotatably connected to the bottom end of the screw rod. A limit block is slidably connected to the outer side wall of the screw rod. The slider is provided with a groove to restrict the sliding of the limit block.

[0025] Furthermore, a cooling mechanism is provided at the top of the disk body one, near the lower part of the limiting mechanism, the cooling mechanism comprising:

[0026] The box body is fixed to the top of the tray body, and the outer side wall of the box body is provided with a drain pipe and an inlet pipe.

[0027] The second inlet pipe is fixed to the base and passes through the base. A slip ring is rotatably connected to the outer wall of the second inlet pipe, and the slip ring is connected to the first inlet pipe.

[0028] Furthermore, a second rod is slidably connected to the outer wall of the first rod, the second rod is fixedly connected to the third gear, a spring is fixed inside the second rod, a pressing mechanism is fixed to the top of the second inlet pipe, the pressing mechanism includes a second disc, the second disc is fixed to the top of the second inlet pipe, and a guide block is fixed to the bottom of the second disc.

[0029] (III) Beneficial Effects

[0030] Compared with the prior art, the present invention provides a heat treatment device for friction pads in wet multi-disc brakes, which has the following beneficial effects:

[0031] 1. This heat treatment equipment for friction pads in wet multi-disc brakes places the friction pads to be heat-treated onto a limiting mechanism for fixation. The drive mechanism rotates the disc, sequentially transporting the friction pads to the heating zone, cooling zone, and discharge zone, achieving continuous and efficient heat treatment operations. Compared to traditional single-group processing, this equipment significantly improves production efficiency, effectively overcomes periodic delays, and meets the needs of large-scale production.

[0032] 2. This friction pad heat treatment equipment for wet multi-disc brakes, through the setting of a limiting mechanism, allows for the pressing of a limiting block by rotating screw one when fixing different friction pads. At this time, the limiting block slides on rod one, thereby allowing multiple limiting blocks to contact friction pads with different apertures. This flexibly adapts to the fixing requirements of friction pads of different specifications, greatly enhancing the versatility and practicality of the equipment.

[0033] 3. This heat treatment equipment for friction pads in wet multi-disc brakes utilizes a controlled moving mechanism to drive a coil around the friction pad as it rotates to the heating zone. Simultaneously, the transmission mechanism efficiently transmits power to the support mechanism, ensuring stable support for the friction pads being fed. This achieves effective heating of the friction pads in the heating zone and reliable support for the fed friction pads. This improves the accuracy of the heat treatment and ensures the stability of the equipment operation.

[0034] 4. This heat treatment equipment for friction pads in wet multi-disc brakes utilizes a rotating mechanism to simultaneously rotate both the heated and cooled friction pads during the heating and cooling processes. This rotational design ensures uniform heating of the friction pads. Simultaneously, during the cooling stage, rotation promotes uniform distribution of the quenching medium, further enhancing the cooling effect and resulting in more stable and reliable overall performance of the friction pads. Furthermore, this simultaneous rotation significantly shortens the heat treatment cycle and improves production efficiency.

[0035] 5. This friction pad heat treatment equipment for wet multi-disc brakes features a pressing mechanism that guides a limiting mechanism to descend as the heated friction pad rotates to the cooling zone, causing the friction pad to fall into the cooling chamber. The friction pad is then rapidly cooled by the cooling medium within the chamber, achieving a seamless transition between the heating and cooling processes. Simultaneously, it ensures that the cooling medium fully contacts the friction pad surface, effectively improving cooling efficiency and uniformity. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the structure of the present invention. Figure 1 ;

[0037] Figure 2 This is a schematic diagram of the structure of the present invention. Figure 2 ;

[0038] Figure 3 This is a schematic diagram of the structure of the present invention. Figure 3 ;

[0039] Figure 4 This is a schematic diagram of the limiting mechanism and cooling mechanism in this invention;

[0040] Figure 5This is a schematic diagram of the pressing mechanism in this invention;

[0041] Figure 6 This is a schematic diagram of the limiting mechanism in the present invention. Figure 1 ;

[0042] Figure 7 This is a schematic diagram of the limiting mechanism in the present invention. Figure 2 ;

[0043] Figure 8 This is a schematic diagram of the slip ring structure in this invention.

[0044] In the picture:

[0045] 100. Base; 110. Support base; 120. Frame; 130. Heat treatment equipment body; 140. Coil;

[0046] 200. Moving mechanism; 210. Motor 1; 220. Bearing housing; 230. Slider 1; 240. Shaft;

[0047] 300. Rotating mechanism one; 310. Column; 320. Gear ring one; 330. Gear one; 340. Disc one; 350. Motor two;

[0048] 400. Limiting mechanism; 410. Rod 1; 420. Rod 2; 430. Limiting block; 440. Screw 1; 450. Connecting plate; 460. Slider 2; 470. Spring;

[0049] 500. Rotating Mechanism Two; 510. Gear Two; 520. Gear Three; 530. Gear Ring Two;

[0050] 600. Cooling mechanism; 610. Housing; 620. Drain pipe; 630. Inlet pipe one; 640. Inlet pipe two; 650. Slip ring;

[0051] 700. Support mechanism; 710. Commutator; 720. Screw 2; 730. Slider 3; 740. Support plate;

[0052] 800. Pressing mechanism; 810. Disc body two; 820. Guide block. Detailed Implementation

[0053] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0054] As attached Figure 1As shown, this embodiment provides a heat treatment device for friction pads in wet multi-disc brakes, including a base 100, a heat treatment device body 130 connected to the base 100, and a coil 140 on the heat treatment device body 130. The coil 140 heats the friction pads using the principle of electromagnetic induction. When a high-frequency or medium-frequency alternating current passes through the coil, a rapidly changing alternating magnetic field is generated in the surrounding space. When the friction pad to be heated is placed in this magnetic field, a strong eddy current is induced inside the friction pad. This eddy current rapidly converts electrical energy into heat energy under the resistance of the metal itself. This is existing technology and will not be described in detail here.

[0055] As attached Figure 2 and 3 As shown, a rotating mechanism 300 is provided on the top of the base 100. The rotating mechanism 300 includes a column 310 and a disc 340. The column 310 is rotatably connected to the base 100. A driving mechanism is provided on the base 100 to drive the column 310 to rotate. The disc 340 is fixed to the column 310. The driving mechanism mainly consists of a gear ring 320, a gear 330, and a motor 350. The motor 350 is fixed to the bottom of the base 100. The output shaft of the motor 350 is fixed with the gear 330. The gear ring 320 is fixed to the outer wall of the column 310. The gear 330 meshes with the gear ring 320. When the motor 350 starts, it drives the gear 330 to rotate, which in turn drives the column 310 to rotate through the gear ring 320, ultimately achieving the rotation of the disc 340. The gear structure of the gear ring 320 and the gear 330 is not shown in the attached diagram.

[0056] A limiting mechanism 400 is provided on the disc body 340. The limiting mechanism 400 is used to limit the position of the friction plate, and the limiting mechanism 400 uses the principle of the inner side wall of the friction plate for limiting. The column 310 rotates, so that the friction plate is transported sequentially to the heating area, cooling area, discharge area and loading area. Four sets of limiting mechanisms 400 are provided on the top of the disc body 340.

[0057] As attached Figure 3 As shown, a frame 120 is provided on the top of the base 100, and a rotating mechanism 500 is provided on the bottom of the disc 340. The rotating mechanism 500 includes a gear 510 and a gear ring 530. The gear 510 is rotatably connected to the frame 120, and a motor (not shown in the figure) that drives the gear 510 to rotate is provided on the frame 120. The gear ring 530 is rotatably connected to the bottom of the disc 340, and a gear 520 is rotatably connected to the bottom of the disc 340. The gear 520 meshes with the gear ring 530, the gear ring 530 meshes with the gear 510, and the gear 520 is connected to the limiting mechanism 400.

[0058] Specifically, when the motor starts, it drives gear two 510 to rotate. Gear two 510 drives gear three 520 to rotate via gear ring two 530, which in turn drives the limiting mechanism 400 to rotate, causing the friction plate fixed on the limiting mechanism 400 to rotate as well. This design ensures that the friction plate can be heated and cooled evenly during heating and cooling processes, improving the quality of heat treatment. The tooth structure of several gears is not shown in the attached drawings.

[0059] As attached Figure 1-2 As shown, a support base 110 is provided on the top of the base 100, a moving mechanism 200 for controlling the lateral movement of the heat treatment equipment body 130 is provided on the top of the support base 110, and a support mechanism 700 is provided on the top of the frame 120.

[0060] Specifically, the moving mechanism 200 allows the heat treatment equipment body 130 to flexibly adjust the coil 140 in the horizontal direction according to actual needs, thereby adapting to the heat treatment of friction plates of different sizes and shapes, greatly improving the versatility and practicality of the equipment. When the user adjusts the size of the limiting mechanism 400, the supporting mechanism 700 serves as a temporary support for the friction plates.

[0061] A transmission mechanism is installed at the top of the frame 120. When the moving mechanism 200 is working, it drives the transmission mechanism, which in turn drives the support mechanism 700 to extend around the limiting mechanism 400 to support the friction plates. The support mechanism 700 is connected to the moving mechanism 200 through the transmission mechanism. When the moving mechanism 200 moves the heat treatment equipment body 130, the transmission mechanism transmits power to the support mechanism 700, causing it to extend or retract synchronously. During the adjustment of the limiting mechanism 400, the support mechanism 700 will arrive at the designated position in advance to provide temporary support for the friction plates, preventing them from shifting or falling off due to gravity.

[0062] As attached Figure 1-2 As shown, the moving mechanism 200 includes a bearing housing 220 and a motor 210. The bearing housing 220 is fixed to the top of the support base 110. The motor 210 is fixed to one side of the bearing housing 220. The output shaft of the motor 210 is fixed with a shaft body 240. The outer wall of the shaft body 240 is threadedly connected to a slider 230. The slider 230 is fixedly connected to the heat treatment equipment body 130.

[0063] Specifically, when motor 210 starts, its output shaft drives shaft 240 to rotate. Since shaft 240 is threadedly connected to slider 230, slider 230 will move linearly along the axial direction of shaft 240. Slider 230 is fixedly connected to heat treatment equipment body 130, thereby driving heat treatment equipment body 130 to move horizontally, realizing flexible adjustment of the position of coil 140. One end of the outer wall of shaft 240 has a threaded structure.

[0064] As attached Figure 1-2 As shown, the support mechanism 700 includes: a third slider 730, which is fixed to the top of the frame 120; a second screw 720, which is rotatably connected to the third slider 730; and a support plate 740 fixed to one side of the third slider 730. The transmission mechanism includes a commutator 710, the input end of which is connected to the shaft 240, and the output end of which is connected to the second screw 720.

[0065] Specifically, the commutator 710 is a right-angle commutator, mainly composed of two bevel gears. These two bevel gears change the rotation direction, converting the rotational motion of the shaft 240 into the rotational motion of the screw 720. When the motor 210 starts and drives the shaft 240 to rotate, the screw 720 also rotates through the commutator 710. Since the screw 720 is rotatably connected to the slider 730, and the slider 730 is fixed to the top of the frame 120, the rotation of the screw 720 pushes the support plate 740 to move linearly in the horizontal direction, extending it around the limiting mechanism 400 to provide stable support for the friction plate. This achieves the linkage between the moving mechanism 200 and the support mechanism 700, ensuring the stability and reliability of the equipment during operation.

[0066] As attached Figure 6 and 7 As shown, the limiting mechanism 400 includes: a rod 410, which is mounted on a disc 340, and a connecting plate 450 is fixed to the inner side wall of the rod 410; a screw 440, which is threadedly connected to the connecting plate 450, and a slider 460 is rotatably connected to the bottom end of the screw 440; a limiting block 430 is slidably connected to the outer side wall of the rod 410, and the slider 460 has a groove for limiting the sliding of the limiting block 430.

[0067] Specifically, at least two limiting blocks 430 are provided. A crossbar is fixed to the inner wall of the first rod 410, and a spring is sleeved on the crossbar. The two ends of the spring are connected to the limiting blocks 430 respectively. When it is necessary to fix friction plates of different specifications, the user screws the first screw 440. The first screw 440 moves downward under the action of the thread on the connecting plate 450, driving the second slider 460 to move downward. Since the second slider 460 has a groove to limit the sliding of the limiting block 430, as the second slider 460 descends, it will squeeze the limiting block 430, causing the limiting block 430 to slide on the outer wall of the first rod 410. The spring sleeved on the crossbar plays a role in buffering and resetting during the sliding of the limiting block 430, ensuring the smooth movement of the limiting block 430. In this way, the distance between the multiple limiting blocks 430 changes, allowing them to contact the inner walls of friction pads with different apertures, thereby achieving flexible fixing of friction pads of different specifications. This greatly enhances the equipment's adaptability to different types of friction pads and improves the equipment's versatility and practicality.

[0068] As attached Figure 4 , 5 As shown in Figure 8, a cooling mechanism 600 is provided on the top of the disc body 340 near the lower part of the limiting mechanism 400. The cooling mechanism 600 includes: a housing 610, which is fixed to the top of the disc body 340. The outer wall of the housing 610 is provided with a drain pipe 620 and a first inlet pipe 630; and a second inlet pipe 640, which is fixed to the base 100 and passes through the base 100. A slip ring 650 (with a sealing ring between them) is rotatably connected to the outer wall of the second inlet pipe 640. The slip ring 650 is connected to the first inlet pipe 630.

[0069] Specifically, the cooling medium in the four housings 610 is concentrated in the slip ring 650 via four inlet pipes 630. Inlet pipes 640 have multiple through holes that connect to the slip ring 650 and inlet pipes 630. The cooling medium flows into the slip ring 650 through the through holes of inlet pipe 640, and then enters the four housings 610 via inlet pipes 630, achieving centralized supply and uniform distribution of the cooling medium. This design not only simplifies the cooling medium transport process but also ensures a consistent amount of cooling medium in each housing 610, thereby improving the uniformity of the cooling effect. During the cooling process, drain pipe 620 is responsible for draining the used cooling medium from the housings 610 for replacement or recycling, further enhancing the practicality and environmental friendliness of the equipment. Furthermore, the rotating connection between the slip ring 650 and inlet pipes 630 ensures that the cooling mechanism 600 maintains a stable supply of cooling medium when the disc 340 rotates, preventing leakage or supply interruption due to rotation.

[0070] As attached Figure 5-7 As shown, a second rod 420 is slidably connected to the outer wall of the first rod 410. The second rod 420 is fixedly connected to the third gear 520. A spring 470 is fixed inside the second rod 420. A pressing mechanism 800 is fixed to the top of the second liquid inlet pipe 640. The pressing mechanism 800 includes a second disc 810, which is fixed to the top of the second liquid inlet pipe 640. A guide block 820 is fixed to the bottom of the second disc 810.

[0071] Specifically, the guide block 820 has an arc-shaped trapezoidal structure. During the rotation of the disc 340, when the screw 440 moves onto the guide block 820, the rod 410 compresses the spring 470 inside the rod 420. The spring 470 undergoes elastic deformation under this compression, while the rod 420 slides relative to the outer wall of the rod 410. This lowers the height of the rod 410, allowing the heated friction pads to be smoothly fed into the housing 610 of the cooling mechanism 600 for cooling. By utilizing the elastic deformation of the spring 470 and the relative sliding between the rods, automatic switching of the friction pads between different processing areas is achieved without manual intervention, greatly improving the automation level and production efficiency of the equipment.

[0072] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A friction plate heat treatment apparatus for a wet multi-plate brake, comprising a base (100), a heat treatment apparatus body (130) connected to the base (100), and a coil (140) on the heat treatment apparatus body (130), characterized in that, The top of the base (100) is provided with a rotating mechanism I (300), the rotating mechanism I (300) comprises: The column (310) is rotatably connected to the base (100), the base (100) is provided with a driving mechanism, the driving mechanism is used for driving the column (310) to rotate; The disc I (340) is fixed on the column (310), the disc I (340) is provided with a limiting mechanism (400), the limiting mechanism (400) is used for limiting the friction plate position, the column (310) rotates, and the friction plate is sequentially transported to the heating area, the cooling area and the discharge area.

2. A heat treatment apparatus for a wet multi-plate brake friction plate according to claim 1, characterized in that: The top of the base (100) is provided with a frame (120), the bottom of the disc I (340) is provided with a rotating mechanism II (500), the rotating mechanism II (500) comprises: The gear II (510) is rotatably connected to the frame (120), the frame (120) is provided with a motor for driving the gear II (510) to rotate; The gear ring II (530) is rotatably connected to the bottom of the disc I (340), the bottom of the disc I (340) is rotatably connected with the gear III (520), the gear III (520) is meshed with the gear ring II (530), the gear ring II (530) is meshed with the gear II (510), and the gear III (520) is connected with the limiting mechanism (400).

3. A heat treatment apparatus for a wet multi-plate brake disk according to claim 2, wherein: The top of the base (100) is provided with a support seat (110), the top of the support seat (110) is provided with a moving mechanism (200) for controlling the transverse movement of the heat treatment equipment body (130), and the top of the frame (120) is provided with a supporting mechanism (700).

4. A heat treatment apparatus for a wet multi-plate brake disk according to claim 3, wherein: The top of the frame (120) is provided with a transmission mechanism, the moving mechanism (200) drives the transmission mechanism when working, and the supporting mechanism (700) is driven to extend around the limiting mechanism (400) for supporting the friction plate.

5. A heat treatment apparatus for a wet multi-plate brake friction plate according to claim 4, characterized in that: The moving mechanism (200) comprises: The bearing seat (220) is fixed to the top of the support seat (110); The motor I (210) is fixed to one side of the bearing seat (220), the output shaft of the motor I (210) is fixed with the shaft body (240), the outer side wall of the shaft body (240) is threadedly connected with the sliding block I (230), and the sliding block I (230) is fixedly connected with the heat treatment equipment body (130).

6. A heat treatment apparatus for a wet multi-plate brake disk according to claim 5, wherein: The supporting mechanism (700) comprises: The sliding block III (730) is fixed to the top of the frame (120); The screw rod II (720) is rotatably connected with the sliding block III (730), and the sliding block III (730) is fixed with the supporting plate (740) on one side.

7. A heat treatment apparatus for a wet multi-plate brake disk according to claim 6, wherein: The transmission mechanism comprises a commutator (710), an input end of the commutator (710) is connected with the shaft body (240), and an output end of the commutator (710) is connected with the screw rod two (720).

8. A heat treatment apparatus for a wet multi-plate brake disk according to claim 7, wherein: The limiting mechanism (400) comprises: A rod body one (410) is arranged on the disc body one (340), and an inner side wall of the rod body one (410) is fixed with a connecting plate (450); A screw rod one (440) is threadedly connected with the connecting plate (450), a bottom end of the screw rod one (440) is rotatably connected with a sliding block two (460), an outer side wall of the rod body one (410) is slidably connected with a limiting block (430), and the sliding block two (460) is provided with a groove body for limiting sliding of the limiting block (430).

9. A heat treatment apparatus for a wet multi-plate brake disk according to claim 8, wherein: A cooling mechanism (600) is arranged below the limiting mechanism (400) and close to a top of the disc body one (340), and the cooling mechanism (600) comprises: A box body (610) is fixed to the top of the disc body one (340), and an outer side wall of the box body (610) is provided with a liquid discharge pipe (620) and a liquid inlet pipe one (630); A liquid inlet pipe two (640) is fixed to the base (100) and penetrates through the base (100), and an outer side wall of the liquid inlet pipe two (640) is rotatably connected with a sliding ring (650), and the sliding ring (650) is connected with the liquid inlet pipe one (630).

10. A heat treatment apparatus for a wet multi-plate brake disk according to claim 9, wherein: An outer side wall of the rod body one (410) is slidably connected with a rod body two (420), the rod body two (420) is fixedly connected with the gear three (520), a spring (470) is fixed in the rod body two (420), a top of the liquid inlet pipe two (640) is fixed with a pressing mechanism (800), the pressing mechanism (800) comprises a disc body two (810), the disc body two (810) is fixed to the top of the liquid inlet pipe two (640), and a bottom of the disc body two (810) is fixed with a guide block (820).

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