Brake disc cooling device

Abstract

The utility model provides a kind of brake disc cooling device, including cooling box, the outside of cooling box is provided with moving platform, at least one lifting platform is provided on moving platform, fixed rack is provided on each lifting platform, at least one telescopic sleeve rod is provided on each fixed rack, the lower part of each telescopic sleeve rod is provided with at least one hook, the mounting hole of brake disc to be cooled is hung on hook, moving platform can move the position of fixed rack, lifting platform can lift the height of fixed rack, the utility model can be through moving platform with lifting platform to realize the position and height of fixed rack and hook are conveniently and quickly adjusted operation, it is convenient for operator to carry out the operation of efficient and fast taking and placing workpiece to be cooled, solve the problem that traditional cooling mode is usually directly into cooling box in cooling piece, salvage and take and place troublesome and time-consuming and labor-consuming, greatly improve the cooling efficiency of workpiece to be cooled.

Description

Technical Field

[0001] This utility model relates to the field of cooling equipment technology, specifically to a brake disc cooling device. Background Technology

[0002] The brake disc, also known as the brake pad, is an important component of a vehicle's braking system. When a train or car is in motion, the brake disc rotates along with the wheels or axles. During braking, the brake caliper clamps the brake disc, and friction between the caliper and the disc's friction surface absorbs kinetic energy, thus slowing the vehicle down and bringing it to a stop.

[0003] Brake discs are widely used in vehicle braking systems. As the friction pair of a disc brake, the brake disc, in addition to possessing the strength and rigidity required of a component, should also have a high and stable coefficient of friction, as well as appropriate wear resistance, heat resistance, heat dissipation, and heat capacity. During the manufacturing process of brake discs, after forging and heat treatment, their surface temperature is extremely high, necessitating cooling to ensure the smooth progress of subsequent processing steps and the performance of the brake disc. Currently, the traditional method for cooling brake discs is to directly immerse the discs to be cooled in a cooling tank filled with coolant, relying on the natural heat exchange of the coolant to achieve cooling. However, this cooling method, where the brake disc is directly immersed in the coolant, requires operators to retrieve it with tools after cooling. This is not only time-consuming and labor-intensive, but also prone to damage due to improper operation, increasing the safety hazard of operators being scalded by the high-temperature coolant. In addition, with the brake disc stationary and immersed in the coolant, the heat exchange rate between the coolant and the surface of the brake disc is slow, and the coolant around the brake disc easily forms localized high-temperature areas, resulting in insufficient heat exchange, poor uniformity of brake disc cooling, long cooling cycles, and affecting overall production efficiency. Utility Model Content

[0004] In view of this, the present invention provides a brake disc cooling device, which can facilitate the convenient and efficient movement of the workpiece to be cooled and achieve efficient cooling of the workpiece by designing an automatic pick-and-place component and using the hook set at the lower part of the telescopic sleeve rod. This solves the problems of inconvenient pick-and-place and low cooling efficiency of traditional brake disc cooling devices.

[0005] To solve the above-mentioned technical problems, this utility model provides a brake disc cooling device, including a cooling box. The cooling box is connected to a cooling pool via an automatic circulation pump and pipes. A cooler for cooling the coolant in the cooling pool is installed. A movable platform is installed on the outside of the cooling box. At least one lifting platform is installed on the movable platform. Each lifting platform is equipped with a fixed frame. Each fixed frame is equipped with at least one telescopic sleeve. At least one hook is installed at the bottom of each telescopic sleeve. The mounting hole of the brake disc to be cooled is hung on the hook. The movable platform can move the position of the fixed frame, and the lifting platform can raise and lower the height of the fixed frame. This utility model can use the movable platform to carry the lifting platform to achieve convenient and quick adjustment of the position and height of the fixed frame and hooks. It is convenient for the operator to efficiently and quickly pick up and put down the workpiece to be cooled, solving the problem that the traditional cooling method usually involves directly throwing the workpiece to be cooled into the cooling box, which is troublesome, time-consuming and laborious to retrieve and put down. This greatly improves the cooling efficiency of the workpiece to be cooled.

[0006] The mobile platform includes a slide rail located on the outside of the cooling box. Inside the slide rail, at least one pair of sliders with oppositely threaded through holes are slidably arranged. A bidirectional screw is threadedly connected to the slider, and a driving component is provided at the end of the bidirectional screw. Each pair of sliders is symmetrically distributed about the geometric center of the bidirectional screw. Each slider is provided with a lifting platform. This invention can rotate the bidirectional screw together by rotating the output shaft of the driving component. In addition, the threaded connection between the bidirectional screw and the slider, as well as the guiding and limiting function of the slide rail on the slider, can drive the slider to move in opposite directions along the slide rail.

[0007] The mobile platform includes a linear slide, which is a motor-driven linear slide with a lead screw. At least one sliding block is slidably mounted on the linear slide, and each sliding block is equipped with a lifting platform. This invention can drive the lifting platform to move along the guide rail of the linear slide through the action of the linear slide.

[0008] The fixed frame is U-shaped, with two vertical sections spanning both sides of the cooling box. The bottom of one vertical section is mounted on the lifting platform, and a guide assembly is located at the bottom of the other vertical section. The guide assembly includes a slide rod located at the bottom of the other vertical section, a sliding sleeve at the bottom of the slide rod, and a guide block at the bottom of the sliding sleeve, which is slidably mounted within the guide rail. The guide rail is parallel to the moving platform and located on both sides of the cooling box. This invention, through the combined action of the guide assembly and the moving and lifting platforms, greatly improves the stability of the fixed frame's movement and lifting operations.

[0009] The lifting platform is a telescopic push rod.

[0010] The telescopic push rod can be an electric push rod or a hydraulic push rod.

[0011] The telescopic sleeve includes a limiting cylinder located at the lower part of the fixed frame, an elastic element inside the limiting cylinder, a limiting rod at the lower part of the elastic element, and a hook located at the lower part of the limiting rod. This utility model can achieve up-and-down reciprocating vibration of the part to be cooled at the lower part of the hook by utilizing the elastic properties of the elastic element. When it is immersed in the coolant in the cooling tank, the up-and-down vibration can increase the fluctuation of the coolant, greatly improving the cooling effect and efficiency.

[0012] The elastic element is a spring or a tin bronze spring.

[0013] The driving component is a servo motor.

[0014] In summary, compared with the prior art, this application includes at least one of the following beneficial technical effects: 1. Solves the problem of inconvenient loading and unloading, and improves the ease of operation: This device, through the cooperation of the mobile platform and the lifting platform, can flexibly adjust the position and height of the fixed frame, telescopic sleeve and hook, making it easy for operators to accurately hang the brake disc to be cooled on the hook. After cooling, the brake disc can be directly moved to the material picking position to be removed, eliminating the need for retrieval operations as in traditional methods. This not only saves time and effort, but also avoids the risk of brake disc damage and operator burns, significantly improving the ease of operation and safety.

[0015] 2. Solving the problem of low cooling efficiency and improving cooling effect: This utility model can drive the brake disc to vibrate up and down in the coolant by setting the elastic element inside the telescopic sleeve, breaking the static state of the coolant, increasing the fluctuation and flow of the coolant, so that the low temperature coolant can continuously and fully contact the surface of the brake disc, accelerate the heat exchange speed, effectively solve the problems of insufficient heat exchange and poor cooling uniformity in traditional cooling methods, and significantly improve the cooling efficiency and cooling quality of the brake disc.

[0016] 3. Solve the problem of insufficient cooling stability and ensure stable operation: This utility model can work in conjunction with the moving platform and the lifting platform through the guide component set on the other side of the fixed frame. The slide rod slides in the slide sleeve and the guide block slides in the guide rail, which can play a good guiding and limiting role for the movement and lifting of the fixed frame, effectively preventing the fixed frame from shaking or deviating, ensuring the stability of the brake disc during movement, lifting and cooling, and avoiding the impact of shaking on the cooling effect or damage to the brake disc.

[0017] 4. Solving the problem of poor adaptability and improving the versatility of the device: This utility model can achieve precise horizontal position adjustment through the mobile platform, and the lifting platform can achieve precise height adjustment by using a telescopic push rod. The two work together to flexibly adjust the hook position according to the different sizes and specifications of the brake discs and the liquid level of the coolant in the cooling tank, so that the device can adapt to the cooling needs of different models of brake discs, improve the versatility and applicability of the device, and meet diverse production requirements. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the brake disc cooling device of this utility model; Figure 2 This is a side view of the brake disc cooling device of this utility model; Figure 3 This utility model Figure 2 Sectional view at point AA; Figure 4 This is another embodiment of the moving platform in the brake disc cooling device of this utility model, and a front view of the cooling device.

[0019] Explanation of reference numerals in the attached drawings: 100, Cooling box; 200, Moving platform; 210, Slide rail; 211, Slider; 212, Bidirectional screw; 213, Driving component; 220, Linear slide; 221, Sliding block; 300, Lifting platform; 400, Fixed frame; 500, Telescopic sleeve; 501, Limiting cylinder; 502, Elastic element; 503, Limiting rod; 600, Hook; 700, Guide assembly; 701, Slide rod; 702, Slide sleeve; 703, Guide block; 704, Guide rail. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the appendices of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.

[0021] like Figure 1-4As shown: This embodiment provides a brake disc cooling device, including a cooling tank 100. The cooling tank 100 is connected to a cooling pool via an automatic circulation pump and pipes. The cooling pool is equipped with a cooler for cooling the coolant. The automatic circulation pump is a CR series vertical multistage centrifugal pump, model CR15-6, manufactured by Grundfos (China) Investment Co., Ltd., made of 316 stainless steel, resistant to coolant corrosion. The cooler is an M3 series plate heat exchanger, model M3-10, manufactured by Alfa Laval (Shanghai) Technology Co., Ltd., with plates made of 316L stainless steel. Made of stainless steel, using tap water or coolant as the cooling medium, the coolant temperature can be stably controlled at 20-30℃. A movable platform 200 is installed on the outside of the cooling tank 100. At least one lifting platform 300 is installed on the movable platform 200. Each lifting platform 300 is equipped with a fixed frame 400, and each fixed frame 400 is equipped with at least one telescopic sleeve 500. At least one hook 600 is installed at the bottom of each telescopic sleeve 500. The mounting hole of the brake disc to be cooled is hooked onto the hook 600. The movable platform 200 can move the position of the fixed frame 400, and the lifting platform 300 can raise and lower the height of the fixed frame 400. Specifically, the fixed frame 400 has a U-shaped structure and is made of Q235 stainless steel. Made of welded steel plates, its two vertical parts are respectively straddling both sides of the cooling box 100; the bottom end of one of the vertical parts is connected to the flange of the lifting platform 300. This utility model can use the moving platform 200 to carry the lifting platform 300 to make convenient and quick adjustments to the position and height of the fixed frame 400 and the hook 600, which is convenient for operators to efficiently and quickly pick up and put down the workpiece to be cooled. It solves the problem that the traditional cooling method usually involves directly throwing the workpiece to be cooled into the cooling box 100, which is troublesome and time-consuming to retrieve and put down, and greatly improves the cooling efficiency of the workpiece to be cooled.

[0022] According to one embodiment of the present invention, such as Figure 1-4As shown, the mobile platform 200 includes a slide rail 210 disposed outside the cooling box 100. At least one pair of sliders 211 with opposite threaded through holes are slidably disposed inside the slide rail 210. A bidirectional screw 212 is threadedly connected to the slider 211. A drive member 213 is disposed at the end of the bidirectional screw 212. The drive member 213 is a servo motor, specifically an A6 series servo motor manufactured by Panasonic Electric Works (China) Co., Ltd., model MSMF042L1U2M. Each pair of sliders 211 is symmetrically distributed about the geometric center of the bidirectional screw 212. Each slider 211 is provided with a lifting platform 300. This invention can rotate the bidirectional screw 212 together with the output shaft of the drive member 213 by rotating it. In addition, the threaded connection between the bidirectional screw 212 and the slider 211, as well as the guiding and limiting function of the slide rail 210 on the slider 211, allow the rotating bidirectional screw 212 to drive the slider 211 to move in opposite directions along the slide rail 210.

[0023] Another implementation of the mobile platform 200 is as follows: Figure 4 As shown, the mobile platform 200 includes a linear slide 220, which is a motor screw linear slide 220. The motor screw linear slide 220 is a KK series manufactured by HIWIN Technologies (China) Co., Ltd., model KK8620C-300A1-F0. At least one sliding block 221 is slidably arranged on the linear slide 220, and a lifting platform 300 is arranged on each sliding block 221. This utility model can drive the lifting platform 300 to move along the guide rail 704 of the linear slide 220 through the action of the linear slide 220.

[0024] According to another embodiment of the present invention, such as Figure 1 and Figure 2As shown, the fixing frame 400 is U-shaped, and its two vertical parts span across both sides of the cooling box 100. The bottom of one of the vertical parts of the fixing frame 400 is mounted on the lifting platform 300. The lower part of the other vertical part of the fixing frame 400 is provided with a guide assembly 700. The guide assembly 700 includes a slide rod 701 located at the lower part of the other vertical part of the fixing frame 400. A sliding sleeve 702 is provided at the lower part of the slide rod 701. The slide rod 701 is slidably mounted in the sliding sleeve 702. A guide block 703 is provided at the lower part of the sliding sleeve 702. The guide block 703 is slidably mounted in the guide rail 704. The guide rail 704 is parallel to the moving platform 200 and is located on both sides of the cooling box 100. Specifically, the guide assembly 700 is installed at the bottom of the other vertical part of the fixing frame 400. The guide assembly 700 includes a slide rod 701, a sliding sleeve 702, a guide block 703, and a guide rail 704. The slide rod 701 is made of 45# steel with a heat treatment process, and its top end is welded to the fixed frame 400. The sliding sleeve 702 is made of 45# steel with precision machining and is fitted onto the outside of the slide rod 701 to achieve sliding guidance. The guide block 703 is made of HT300 wear-resistant cast iron and is fixed to the bottom end of the sliding sleeve 702 by bolts. The guide rail 704 is arranged parallel to the moving platform 200, is made of HT300 cast iron, and has a groove on its top surface that matches the guide block 703. This utility model can greatly improve the stability of the moving and lifting operation of the fixed frame 400 by the combined action of the guide assembly 700, the moving platform 200, and the lifting platform 300.

[0025] The lifting platform 300 uses a telescopic push rod, which can be either an electric push rod or a hydraulic push rod. When the telescopic push rod is an electric push rod, the DTP series produced by Taizhou Huaneng Electric Push Rod Co., Ltd., model DTP800, is selected; when the telescopic push rod is a hydraulic push rod, the Y-HG1 series produced by Ningbo Deli Hydraulic Co., Ltd., model Y-HG1-E80 / 45, is selected.

[0026] According to another embodiment of the present invention, such as Figure 1 and Figure 3As shown, the telescopic sleeve 500 includes a limiting cylinder 501 located at the lower part of the fixed frame 400. An elastic element 502, which is a spring or a tin bronze spring, is installed inside the limiting cylinder 501. A limiting rod 503 is located at the lower part of the elastic element 502, and a hook 600 is located at the lower part of the limiting rod 503. Specifically, the limiting cylinder 501 is a seamless 304 stainless steel tube, with its top end welded to the fixed frame 400. The elastic element 502 can be a cylindrical helical compression spring made of 65Mn spring steel or a QSn6.5-0.1 tin bronze spring, built into the limiting cylinder 501. The limiting rod 503 is a 304 stainless steel rod, with its top end extending into the limiting cylinder 501 and abutting against the elastic element 502, and the bottom end welded with the hook 600. The hook 600 is made of 20CrMnTi alloy structural steel, carburized and quenched. The head of the hook 600 has an arc-shaped structure to fit the brake disc mounting hole, preventing scratches on the brake disc during suspension. This invention utilizes the elastic properties of the elastic element 502 to generate reciprocating up-and-down vibrations on the part to be cooled at the bottom of the hook 600. When the part is immersed in the coolant in the cooling tank 100, the up-and-down vibrations increase the fluctuations of the coolant, greatly improving the cooling effect and efficiency.

[0027] How to use this utility model: First, it needs to be clarified that the cooling device involved in this utility model is mainly used for rapid and efficient cooling of various workpieces suitable for hanging and immersion cooling. This utility model takes the rapid cooling of brake discs as an example to explain its working principle and usage method in detail. The working principle is as follows: When this brake disc cooling device is working, it first cools the coolant in the cooling pool through a cooler. Once the coolant temperature reaches the set requirement, the automatic circulation pump is started. The automatic circulation pump transports the low-temperature coolant in the cooling pool to the cooling tank 100 through pipelines. At the same time, the high-temperature coolant in the cooling tank 100 that has absorbed heat is pumped back to the cooling pool, thus realizing the circulation and continuous cooling of the coolant. When cooling the brake disc, the position and height of the fixed frame 400 are adjusted by controlling the moving platform 200 and the lifting platform 300 according to the size and specifications of the brake disc and the coolant level in the cooling tank 100. If the mobile platform 200 adopts the structure of slide rail 210, slider 211 and bidirectional screw 212, the servo motor 213, which is the driving component, is started. The output shaft of the servo motor drives the bidirectional screw 212 to rotate. Since the bidirectional screw 212 is threadedly connected to the slider 211, and the slide rail 210 guides and limits the slider 211, the rotating bidirectional screw 212 drives the slider 211 to move in opposite directions along the slide rail 210, thereby driving the lifting platform 300 and the fixed frame 400 to adjust their horizontal position. If the mobile platform 200 adopts the structure of a linear slide table 220, the drive motor of the linear slide table 220 is started, the drive motor drives the lead screw to rotate, and the lead screw drives the sliding block 221 to slide along the guide rail 704 of the linear slide table 220, thereby driving the lifting platform 300 and the fixed frame 400 to adjust their horizontal positions. Simultaneously, the telescopic push rod is activated, extending or retracting to adjust the height of the fixing frame 400, ensuring that the hook 600 at the lower part of the telescopic sleeve 500 on the fixing frame 400 is accurately aligned with the mounting hole of the brake disc to be cooled. After the mounting hole of the brake disc to be cooled is hooked onto the hook 600, the brake disc is moved again to directly above the cooling tank 100 via the moving platform 200 and the lifting platform 300, and the lifting platform 300 is adjusted to immerse the brake disc in the coolant within the cooling tank 100. During the brake disc cooling process, the elastic element 502 inside the telescopic sleeve 500 undergoes elastic deformation, causing the limit rod 503 and the brake disc at the bottom of the hook 600 to vibrate up and down. This vibration breaks the static state of the surrounding coolant, increasing its flow and fluctuation, ensuring continuous and thorough contact between the low-temperature coolant and the brake disc surface, accelerating heat exchange, and improving cooling efficiency and uniformity. Simultaneously, the guide assembly 700 at the lower vertical part of the other side of the mounting bracket 400 plays an auxiliary guiding role during the movement and lifting of the mounting bracket 400: the slide rod 701 slides within the slide sleeve 702, and the guide block 703 slides within the guide rail 704, effectively preventing the mounting bracket 400 from swaying or shifting, ensuring the stability of the brake disc during the cooling process. Once the brake disc has cooled down, the lifting platform 300 lifts the brake disc from the coolant, and the moving platform 200 moves the brake disc to the material removal position. The operator can then directly remove the brake disc without any retrieval work. This method is convenient, time-saving, and labor-saving, while also reducing safety hazards.

[0028] The usage method is as follows: Preparations before startup: Check the coolant level in the cooling tank 100, confirm that the power connection of the automatic circulation pump, cooler, servo motor or linear slide 220, and lifting platform 300 is normal, test whether the guide component 700 slides smoothly, and whether the elastic element 502 rebounds normally. Parameter settings: According to the specifications of the brake disc to be cooled, set the horizontal position of the moving platform 200 through the servo motor controller, such as the Panasonic A6 series dedicated controller or the linear slide 220 control panel, so that the spacing of the hooks 600 is adapted to the diameter of the brake disc; set the initial height through the lifting platform 300 controller so that the hooks 600 are 1.2m above the ground, which facilitates the suspension of the brake disc. Brake disc suspension: The operator aligns the center mounting hole of the brake disc to be cooled with the hook 600, and slowly lowers the brake disc, ensuring that the hook 600 is fully embedded in the mounting hole. Note that each brake disc should be suspended by at least 2 hooks 600 to ensure stability; 2-4 brake discs can be suspended at a time depending on the number of mobile platforms 200. Cooling operation start-up: Start the cooler and automatic circulation pump. When the coolant temperature in the cooling tank 100 drops to about 25°C, start the moving platform 200 through the controller to move the brake disc directly above the cooling tank 100; then start the lifting platform 300 to slowly immerse the brake disc in the coolant. Note that the immersion depth is ≥ 2 / 3 of the brake disc thickness. Keep it cooling for 10-12 minutes. Brake disc removal: After cooling is complete, start the lifting platform 300 to raise the brake disc to 100mm above the coolant level and drain the surface coolant; start the moving platform 200 to move the brake disc to the material handling area, and the operator removes the brake disc to complete a single cooling operation; repeat steps 3-5 to achieve continuous cooling of batch brake discs.

[0029] This utility model, through the design of an automatic pick-and-place component and the hook 600 located at the lower part of the telescopic sleeve 500, facilitates convenient and efficient movement of the workpiece to be cooled and enables efficient cooling of the workpiece through reciprocating movement during the cleaning process. This solves the problems of inconvenient pick-and-place and low cooling efficiency found in traditional brake disc cooling devices.

[0030] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0031] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.

Claims

1. A brake disc cooling device, comprising a cooling tank (100), characterized in that: A movable platform (200) is provided on the outside of the cooling box (100). At least one lifting platform (300) is provided on the movable platform (200). A fixed frame (400) is provided on each lifting platform (300). At least one telescopic sleeve (500) is provided on each fixed frame (400). At least one hook (600) is provided at the lower part of each telescopic sleeve (500). The mounting hole of the brake disc to be cooled is hung on the hook (600). The movable platform (200) can move the position of the fixed frame (400). The lifting platform (300) can raise and lower the height of the fixed frame (400).

2. The brake disc cooling device as described in claim 1, characterized in that: The mobile platform (200) includes a slide rail (210) disposed outside the cooling box (100). At least one pair of sliders (211) with opposite threaded through holes are slidably disposed inside the slide rail (210). A bidirectional screw (212) is threadedly connected to each slider (211). A drive member (213) is disposed at the end of the bidirectional screw (212). Each pair of sliders (211) is symmetrically distributed about the geometric center of the bidirectional screw (212). A lifting platform (300) is disposed on each slider (211).

3. The brake disc cooling device as described in claim 1, characterized in that: The mobile platform (200) includes a linear slide (220), on which at least one sliding block (221) is slidably disposed, and each sliding block (221) is provided with a lifting platform (300).

4. The brake disc cooling device as described in claim 2, characterized in that: The fixing frame (400) is U-shaped, and the two vertical parts of the fixing frame (400) span across both sides of the cooling box (100). The bottom of one of the vertical parts of the fixing frame (400) is set on the lifting platform (300). The lower part of the other vertical part of the fixing frame (400) is provided with a guide assembly (700). The guide assembly (700) includes a slide rod (701) set at the lower part of the other vertical part of the fixing frame (400). The lower part of the slide rod (701) is provided with a sliding sleeve (702). The slide rod (701) is slidably set in the sliding sleeve (702). The lower part of the sliding sleeve (702) is provided with a guide block (703). The guide block (703) is slidably set in the guide rail (704). The guide rail (704) is parallel to the moving platform (200) and is located on both sides of the cooling box (100).

5. The brake disc cooling device as described in claim 1, characterized in that: The lifting platform (300) is a telescopic push rod.

6. The brake disc cooling device as described in claim 5, characterized in that: The telescopic push rod is either an electric push rod or a hydraulic push rod.

7. The brake disc cooling device as described in claim 1, characterized in that: The telescopic sleeve (500) includes a limiting cylinder (501) disposed at the lower part of the fixed frame (400), an elastic element (502) is disposed inside the limiting cylinder (501), a limiting rod (503) is disposed at the lower part of the elastic element (502), and the hook (600) is disposed at the lower part of the limiting rod (503).

8. The brake disc cooling device as described in claim 7, characterized in that: The elastic element (502) is a spring or a tin bronze spring sheet.

9. The brake disc cooling device as described in claim 2, characterized in that: The driving component (213) is a servo motor.

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