Cooling device of high-speed hydraulic motor

Abstract

The invention relates to the technical field of hydraulic motors, and discloses a high-speed hydraulic motor cooling device which comprises a motor shell, the outer surface of the motor shell is fixedly connected with a heat conduction mechanism, the lower surface of the motor shell is fixedly connected with a base, and the interior of the motor shell is rotationally connected with a motor rotor. First fan blades are fixedly connected to the outer surface of the motor rotor, a protective cover is in threaded connection with the outer surface of the motor shell, a cooling mechanism is clamped to the outer surface of the motor shell, hydraulic oil in the motor shell is evenly heated through an arc-shaped hole, a heat conduction plate and a semicircular plate, then the hydraulic oil is guided out to a partition plate, and heat dissipation is conducted through a circulating pipe. The shunting box balances the temperature of the circulating pipe and the through hole limiting column and guides cooling water for cooling; the arc-shaped cover is used for protecting the external communicating pipe; the second fan blades accelerate air circulation in the arc-shaped cover, the sliding frame is pushed to move, the cooling fins are cooled at the same time, and the cooling efficiency is improved.

Description

Technical Field

[0001] This invention relates to the field of hydraulic motor technology, specifically to a cooling device for a high-speed hydraulic motor. Background Technology

[0002] As a key actuator in hydraulic systems, hydraulic motors efficiently convert the liquid pressure energy output by hydraulic pumps into mechanical energy of the output shaft, achieving torque and speed output. They play an indispensable role in many industrial fields. In particular, high-speed hydraulic motors, with their advantages of high speed and high power density, are widely used in industries such as injection molding machinery, ships, hoists, engineering machinery, construction machinery, coal mining machinery, mining machinery, metallurgical machinery, marine machinery, petrochemicals, and port machinery.

[0003] Patent application CN202123090133.7 discloses a cooling device for a high-speed hydraulic motor, including a support frame and a motor housing fixedly connected to the support frame. Two symmetrically arranged connecting frames are connected to the side wall of the motor housing, and each connecting frame has an insertion port. An air intake screen is inserted into the insertion port. A fan is fixedly connected to one end of the motor housing, and an air outlet screen is detachably installed at the other end of the fan. The device uses an installation assembly, an air intake screen, and insertion ports. When the air intake screen needs to be removed, a sliding bar is pulled, causing a limiting block on the sliding bar to move out of the limiting component. Then, the air intake screen is pulled upwards to remove it from the insertion port, allowing for easy replacement and cleaning of the air intake screen and ensuring good air intake performance.

[0004] However, this patent also has the following shortcomings: when operating at high speed, the hydraulic motor will generate a lot of heat due to internal mechanical friction, hydraulic oil viscosity resistance and pressure loss. If the heat accumulates and is not dissipated in time, it will cause the hydraulic oil temperature to rise sharply, which will reduce its viscosity and lubricity, aggravate the wear of internal components, and may also cause the seals to age and leak. In view of this situation, a cooling device for high-speed hydraulic motor is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a cooling device for a high-speed hydraulic motor to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a cooling device for a high-speed hydraulic motor, comprising a motor housing, wherein a heat-conducting mechanism is fixedly connected to the outer surface of the motor housing, the heat-conducting mechanism comprising: A rectangular card plate, an arc-shaped cover fixedly connected to the outer surface of the rectangular card plate, a through-hole limiting post fixedly connected to the inner wall of the arc-shaped cover, a connecting pipe clamped inside the through-hole limiting post, a circulation pipe and an arc-shaped plate fixedly connected to the outer surface of the connecting pipe, and a flow divider box fixedly connected to the outer surface of the arc-shaped plate, the flow divider box being used to connect the connecting pipe; A rectangular frame has a dividing plate fixedly connected to its outer surface. A heat-conducting plate is snapped into the inside of the motor housing. A semi-circular plate is fixedly connected to the outer surface of the heat-conducting plate. The semi-circular plate and the heat-conducting plate are used to conduct heat evenly inside the motor housing.

[0007] According to the above technical solution, a base is fixedly connected to the lower surface of the motor housing, a motor rotor is rotatably connected inside the motor housing, a fan blade is fixedly connected to the outer surface of the motor rotor, a protective cover is threadedly connected to the outer surface of the motor housing, and a cooling mechanism is snapped onto the outer surface of the motor housing. The fan blade is used to cool the motor housing and the motor rotor.

[0008] According to the above technical solution, the heat conduction mechanism further includes heat dissipation fins. The upper surface of the heat dissipation fins is fixedly connected to the lower surface of the distribution box. The outer surface of the distribution box is fixedly connected to an inlet and an outlet. An arc-shaped hole 1 is opened inside the dividing plate. An arc-shaped hole 2 is opened inside the heat conduction plate. An arc-shaped hole 3 is opened inside the semi-circular plate. The arc-shaped holes 1, 2, and 3 are used to introduce hydraulic oil.

[0009] According to the above technical solution, the rectangular card plate is snapped into the motor housing, the outer surface of the rectangular card plate is in contact with the outer surface of the rectangular frame, the circulation pipe is snapped into the dividing plate, the distribution box is fixedly connected to the inner wall of the arc-shaped cover, the lower surface of the heat dissipation fins is in contact with the outer surface of the motor housing, and the heat dissipation fins are used to conduct heat to the distribution box.

[0010] According to the above technical solution, the rectangular frame is snapped into the motor housing, the outer surface of the dividing plate is in contact with the outer surface of the heat-conducting plate, the inner wall of the semi-circular plate is flush with the inner wall of the motor housing, the positions of the arc-shaped hole one, arc-shaped hole two and arc-shaped hole three coincide, and the circulation pipe is used to cool the hydraulic oil located inside the dividing plate.

[0011] According to the above technical solution, the cooling mechanism includes a semi-circular frame, which is snapped into the motor housing. An arc-shaped groove is provided inside the semi-circular frame, and a threaded pin is threaded into the semi-circular frame. An arc-shaped groove is provided inside the arc-shaped cover, and a sliding frame is snapped into the arc-shaped groove. The sliding frame is snapped into the threaded pin, and the threaded pin is used to fix the semi-circular frame.

[0012] According to the above technical solution, the cooling mechanism further includes a rotating frame, which is fixedly connected to the sliding frame. A second fan blade is rotatably connected inside the rotating frame. A rough panel is slidably connected to the outer surface of the sliding frame. An arc-shaped plate is fixedly connected to the outer surface of the sliding frame. A butterfly spring is fixedly connected to the lower surface of the arc-shaped plate. A connecting plate is fixedly connected to the side of the sliding frame. An arc-shaped groove is provided inside the sliding frame. The rough panel is used to fix the sliding frame.

[0013] According to the above technical solution, the threaded pin is threadedly connected to the rectangular clamping plate, the outer surface of the rotating frame is the same width as the semi-circular frame, the lower surface of the rough panel is in contact with the upper surface of the motor housing, the lower surface of the butterfly spring is fixedly connected to the upper surface of the rough panel, and the butterfly spring is used to push the rough panel.

[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The cooling device for this high-speed hydraulic motor, by setting an arc-shaped hole, after the hydraulic oil inside the motor housing is heated evenly by the heat-conducting plate and the semi-circular plate, the heat is led out through the arc-shaped hole to the inside of the dividing plate, and then the heat of the hydraulic oil is led out through the circulation pipe and cooled down, thus dissipating heat from the hydraulic oil.

[0015] 2. The cooling device of this high-speed hydraulic motor, by setting up a distribution box, can balance the temperature inside multiple sets of circulation pipes and through-hole limit columns when cooling water enters through the inlet and exits through the outlet, and guide the flow of cooling water to achieve cooling and ensure uniform heat dissipation of each part.

[0016] 3. The cooling device for this type of high-speed hydraulic motor, by setting an arc-shaped cover, allows the circulating pipe to conduct the heat of the hydraulic oil to the inside of the connecting pipe, and the external connecting pipe to cool it down. At the same time, the arc-shaped cover protects the connecting pipe and prevents it from overheating and affecting the operator.

[0017] 4. The cooling device of this high-speed hydraulic motor, by setting a second fan blade, when it accelerates the airflow inside the arc-shaped cover to cool it down, can simultaneously cool the heat dissipation fins by pushing the sliding frame to move, so that the heat dissipation components of the device can dissipate heat more efficiently. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the main structure of the present invention; Figure 2 This is a cross-sectional view of the main body of the invention; Figure 3 This is a cross-sectional view of the heat conduction mechanism of the present invention; Figure 4 This is a cross-sectional view of the arc-shaped cover of the present invention; Figure 5This is an exploded view of the rectangular frame structure of the present invention; Figure 6 for Figure 3 Enlarged cross-sectional view of the structure at point A in the middle; Figure 7 This is a schematic diagram of the cooling mechanism of the present invention; Figure 8 This is a schematic diagram of the sliding frame of the present invention.

[0019] In the diagram: 1. Base; 2. Motor housing; 21. Motor rotor; 22. Fan blade 1; 23. Protective cover; 3. Heat conduction mechanism; 31. Rectangular retaining plate; 311. Arc-shaped cover; 312. Through-hole limiting post; 313. Connecting pipe; 314. Circulation pipe; 315. Diverter box; 316. Arc-shaped plate 1; 317. Heat dissipation fins; 318. Water inlet; 319. Water outlet; 32. Rectangular frame; 321. Dividing plate; 32 2. Heat-conducting plate; 323. Semicircular plate; 324. Arc-shaped hole one; 325. Arc-shaped hole two; 326. Arc-shaped hole three; 4. Cooling mechanism; 41. Semicircular frame; 411. Arc-shaped groove one; 412. Threaded nail; 42. Arc-shaped groove two; 43. Sliding frame; 431. Rotating frame; 432. Fan blade two; 433. Rough panel; 434. Arc-shaped plate two; 435. Butterfly spring; 436. Connecting plate; 437. Arc-shaped groove three. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0021] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0022] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0023] Example 1: See Figures 1-6The present invention provides a technical solution: a cooling device for a high-speed hydraulic motor, comprising a motor housing 2, wherein a heat-conducting mechanism 3 is fixedly connected to the outer surface of the motor housing 2, and the heat-conducting mechanism 3 comprises: A rectangular card plate 31 has an arc-shaped cover 311 fixedly connected to its outer surface. A through-hole limiting post 312 is fixedly connected to the inner wall of the arc-shaped cover 311. A connecting pipe 313 is snapped into the inside of the through-hole limiting post 312. A circulation pipe 314 and an arc-shaped plate 316 are fixedly connected to the outer surface of the connecting pipe 313. A diversion box 315 is fixedly connected to the outer surface of the arc-shaped plate 316. The diversion box 315 is used to connect the connecting pipe 313. A rectangular frame 32 has a dividing plate 321 fixedly connected to its outer surface. A heat-conducting plate 322 is snapped into the inside of the motor housing 2. A semi-circular plate 323 is fixedly connected to the outer surface of the heat-conducting plate 322. The semi-circular plate 323 and the heat-conducting plate 322 are used to conduct heat evenly inside the motor housing 2.

[0024] A base 1 is fixedly connected to the lower surface of the motor housing 2. A motor rotor 21 is rotatably connected inside the motor housing 2. A fan blade 22 is fixedly connected to the outer surface of the motor rotor 21. A protective cover 23 is threadedly connected to the outer surface of the motor housing 2. A cooling mechanism 4 is snapped onto the outer surface of the motor housing 2. The fan blade 22 is used to cool the motor housing 2 and the motor rotor 21.

[0025] The heat conduction mechanism 3 also includes heat dissipation fins 317. The upper surface of the heat dissipation fins 317 is fixedly connected to the lower surface of the distribution box 315. The outer surface of the distribution box 315 is fixedly connected to the water inlet 318 and the water outlet 319. The partition plate 321 has an arc-shaped hole 324 inside, the heat conduction plate 322 has an arc-shaped hole 325 inside, and the semi-circular plate 323 has an arc-shaped hole 326 inside. The arc-shaped hole 324, the arc-shaped hole 325 and the arc-shaped hole 326 are used to pass hydraulic oil.

[0026] The rectangular plate 31 is snapped into the motor housing 2, and the outer surface of the rectangular plate 31 is in contact with the outer surface of the rectangular frame 32. The circulation pipe 314 is snapped into the dividing plate 321. The distribution box 315 is fixedly connected to the inner wall of the arc-shaped cover 311. The lower surface of the heat dissipation fin 317 is in contact with the outer surface of the motor housing 2. The heat dissipation fin 317 is used to conduct heat to the distribution box 315.

[0027] The rectangular frame 32 is snapped into the motor housing 2. The outer surface of the dividing plate 321 is in contact with the outer surface of the heat-conducting plate 322. The inner wall of the semi-circular plate 323 is flush with the inner wall of the motor housing 2. The positions of the arc-shaped hole 324, arc-shaped hole 325, and arc-shaped hole 326 coincide. The circulation pipe 314 is used to cool the hydraulic oil located inside the dividing plate 321. When the rectangular clamping plate 31 is in contact with the outer surface of the motor housing 2, the rectangular clamping plate 31 and the motor housing 2 are fixed by bolts. Thus, the rectangular frame 32 and the dividing plate 321 are snapped into place by the rectangular clamping plate 31. A rubber gasket is added between the rectangular clamping plate 31 and the motor housing 2 to prevent the hydraulic oil from leaking through the gap between the rectangular clamping plate 31 and the motor housing 2.

[0028] When cooling the motor housing 2 and motor rotor 21 using a cooling device, the hydraulic oil is located inside the motor housing 2 and it is difficult to directly remove the temperature of the motor rotor 21 through the hydraulic oil. This can cause the motor housing 2 and motor rotor 21 to be damaged by heat. Therefore, a heat conduction mechanism 3 is needed to remove the heat of the hydraulic oil inside the motor housing 2.

[0029] The working principle of this embodiment is as follows: When using the cooling device of this high-speed hydraulic motor, when the motor rotor 21 rotates inside the motor housing 2, it drives the fan blade 22 to rotate and allows ventilation through the protective cover 23, thereby cooling the motor rotor 21 through the fan blade 22. When the motor rotor 21 rotates, the hydraulic oil between the inner wall of the motor housing 2 and the motor rotor 21 is heated evenly by the heat-conducting plate 322 and the semi-circular plate 323, and then discharged into the interior of the dividing plate 321 through the arc-shaped hole 324, the arc-shaped hole 325 and the arc-shaped hole 326, and then circulated through the circulation pipe. When the water is in contact with the 314 phase, cooling water is introduced through the inlet 318, filling the interior of the connecting pipe 313, the circulation pipe 314, and the distribution box 315, and then discharged through the outlet 319. Thus, the cooling water inside the circulation pipe 314 is cooled while the remaining heat is dissipated and circulated to the interior of the connecting pipe 313, and cooled through the external connecting pipe 313. When the cooling water is discharged through the distribution box 315 and the outlet 319, the heat dissipation fins 317 dissipate heat from the distribution box 315, causing the heat to flow back to the connecting pipe 313, thus avoiding affecting the cooling of the connecting pipe 313.

[0030] Example 2: Please refer to Figures 7-8Based on Embodiment 1, the present invention provides a technical solution: the cooling mechanism 4 includes a semi-circular frame 41, which is snapped into the motor housing 2. An arc-shaped groove 411 is provided inside the semi-circular frame 41, and a threaded pin 412 is threaded into the semi-circular frame 41. An arc-shaped groove 42 is provided inside the arc-shaped cover 311, and a sliding frame 43 is snapped into the arc-shaped groove 411. The sliding frame 43 is snapped into the threaded pin 412, and the threaded pin 412 is used to fix the semi-circular frame 41.

[0031] The cooling mechanism 4 also includes a rotating frame 431, which is fixedly connected to the sliding frame 43. A second fan blade 432 is rotatably connected inside the rotating frame 431. A rough panel 433 is slidably connected to the outer surface of the sliding frame 43. An arc-shaped plate 434 is fixedly connected to the outer surface of the sliding frame 43. A butterfly spring 435 is fixedly connected to the lower surface of the arc-shaped plate 434. A connecting plate 436 is fixedly connected to the side of the sliding frame 43. An arc-shaped groove 437 is opened inside the sliding frame 43. The rough panel 433 is used to fix the sliding frame 43.

[0032] The threaded pin 412 is threadedly connected to the rectangular clamping plate 31. The outer surface of the rotating frame 431 has the same width as the semi-circular frame 41. The lower surface of the rough panel 433 is in contact with the upper surface of the motor housing 2. The lower surface of the butterfly spring 435 is fixedly connected to the upper surface of the rough panel 433. The butterfly spring 435 is used to push the rough panel 433. When the fan blade 432 accelerates the airflow inside the arc-shaped cover 311, the rotating frame 431 protects the rotation of the fan blade 432. When the fan blade 432 rotates, the butterfly spring 435 elastically pushes the rough panel 433 to prevent the vibration of the fan blade 432 from affecting the fixed position of the rough panel 433.

[0033] When the hydraulic oil heat is discharged and dissipated through the connecting pipe 313, the multiple sets of connecting pipes 313 are blocked and protected by the arc-shaped cover 311, making it difficult to dissipate heat through the connecting pipes 313. Therefore, the cooling mechanism 4 is required to cool the connecting pipes 313 and the heat dissipation fins 317, thereby assisting the connecting pipes 313 in dissipating heat.

[0034] The working principle of this embodiment is as follows: When using this high-speed hydraulic motor cooling device, during cooling through the connecting pipe 313, the rotation of the second fan blade 432, and the acceleration of airflow inside the arc-shaped cover 311 by the symmetrically arranged second fan blades 432 on both sides of the arc-shaped cover 311, thereby accelerating the cooling effect of the connecting pipe 313, and by pushing the rough panel 433 and causing the sliding frame 43 to slide inside the arc-shaped groove 411 and the threaded pin 412, the second fan blade 432... When the arc-shaped groove 437 overlaps with the heat dissipation fin 317, the slot of the arc-shaped groove 437 contacts the outer surface of the inlet 318 and the outlet 319, and drives another set of symmetrically arranged sliding frames 43 to move. Through the push of the butterfly spring 435 on the rough panel 433, the position of the rotating frame 431 is fixed on the outside of the heat dissipation fin 317, so that the heat dissipation fin 317 is cooled by the fan blade 432, so as to avoid the internal temperature of the distribution box 315 and the heat dissipation fin 317 being too high and to prevent back heat.

[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cooling device for a high-speed hydraulic motor, comprising a motor housing (2), wherein a heat-conducting mechanism (3) is fixedly connected to the outer surface of the motor housing (2), characterized in that, The heat conduction mechanism (3) includes: A rectangular card plate (31) is fixedly connected to an arc-shaped cover (311) on its outer surface. A through-hole limiting post (312) is fixedly connected to the inner wall of the arc-shaped cover (311). A connecting pipe (313) is snapped into the inside of the through-hole limiting post (312). A circulation pipe (314) and an arc-shaped plate (316) are fixedly connected to the outer surface of the connecting pipe (313). A diversion box (315) is fixedly connected to the outer surface of the arc-shaped plate (316). The diversion box (315) is used to connect the connecting pipe (313). A rectangular frame (32) is fixedly connected to a dividing plate (321) on its outer surface. A heat-conducting plate (322) is snapped into the inside of the motor housing (2). A semi-circular plate (323) is fixedly connected to the outer surface of the heat-conducting plate (322). The semi-circular plate (323) and the heat-conducting plate (322) are used to conduct heat evenly inside the motor housing (2).

2. The cooling device for a high-speed hydraulic motor according to claim 1, characterized in that: The lower surface of the motor housing (2) is fixedly connected to a base (1), the motor housing (2) is rotatably connected to a motor rotor (21), the outer surface of the motor rotor (21) is fixedly connected to a fan blade (22), the outer surface of the motor housing (2) is threadedly connected to a protective cover (23), and the outer surface of the motor housing (2) is snapped with a cooling mechanism (4). The fan blade (22) is used to cool the motor housing (2) and the motor rotor (21).

3. The cooling device for a high-speed hydraulic motor according to claim 2, characterized in that: The heat conduction mechanism (3) also includes heat dissipation fins (317). The upper surface of the heat dissipation fins (317) is fixedly connected to the lower surface of the distribution box (315). The outer surface of the distribution box (315) is fixedly connected to the water inlet (318) and the water outlet (319). The partition plate (321) has an arc-shaped hole one (324) inside. The heat conduction plate (322) has an arc-shaped hole two (325) inside. The semi-circular plate (323) has an arc-shaped hole three (326) inside. The arc-shaped hole one (324), arc-shaped hole two (325) and arc-shaped hole three (326) are used to pass hydraulic oil.

4. The cooling device for a high-speed hydraulic motor according to claim 3, characterized in that: The rectangular plate (31) is snapped into the motor housing (2), the outer surface of the rectangular plate (31) is in contact with the outer surface of the rectangular frame (32), the circulation pipe (314) is snapped into the dividing plate (321), the flow box (315) is fixedly connected to the inner wall of the arc cover (311), the lower surface of the heat dissipation fin (317) is in contact with the outer surface of the motor housing (2), and the heat dissipation fin (317) is used to conduct heat to the flow box (315).

5. The cooling device for a high-speed hydraulic motor according to claim 4, characterized in that: The rectangular frame (32) is snapped into the motor housing (2), the outer surface of the dividing plate (321) is in contact with the outer surface of the heat-conducting plate (322), the inner wall of the semi-circular plate (323) is flush with the inner wall of the motor housing (2), the positions of the arc-shaped hole one (324), arc-shaped hole two (325) and arc-shaped hole three (326) coincide, and the circulation pipe (314) is used to cool the hydraulic oil located inside the dividing plate (321).

6. The cooling device for a high-speed hydraulic motor according to claim 3, characterized in that: The cooling mechanism (4) includes a semi-circular frame (41), which is snapped into the motor housing (2). The semi-circular frame (41) has an arc-shaped groove (411) inside, and a threaded pin (412) is threaded into the semi-circular frame (41). The arc-shaped cover (311) has an arc-shaped groove (42) inside, and a sliding frame (43) is snapped into the arc-shaped groove (411). The sliding frame (43) is snapped into the threaded pin (412), and the threaded pin (412) is used to fix the semi-circular frame (41).

7. The cooling device for a high-speed hydraulic motor according to claim 6, characterized in that: The cooling mechanism (4) also includes a rotating frame (431), which is fixedly connected to the sliding frame (43). The rotating frame (431) is rotatably connected to a fan blade (432). The outer surface of the sliding frame (43) is slidably connected to a rough panel (433). The outer surface of the sliding frame (43) is fixedly connected to an arc plate (434). The lower surface of the arc plate (434) is fixedly connected to a butterfly spring (435). The side of the sliding frame (43) is fixedly connected to a connecting plate (436). The sliding frame (43) has an arc groove (437) inside. The rough panel (433) is used to fix the sliding frame (43).

8. The cooling device for a high-speed hydraulic motor according to claim 7, characterized in that: The threaded pin (412) is threadedly connected to the rectangular clamp (31). The outer surface of the rotating frame (431) has the same width as the semi-circular frame (41). The lower surface of the rough panel (433) is in contact with the upper surface of the motor housing (2). The lower surface of the butterfly spring (435) is fixedly connected to the upper surface of the rough panel (433). The butterfly spring (435) is used to push the rough panel (433).

Images