High and low temperature resistant silicone rubber seal AMT clutch pneumatic actuator

Abstract

The utility model discloses a high and low temperature resistant silicone rubber seal AMT clutch pneumatic actuating mechanism, the utility model discloses a cylinder, lower end cover, upper end cover, push assembly and reset subassembly, and lower end cover bolt connection is at the bottom of cylinder, and upper end cover bolt connection is at the top of cylinder, and push assembly includes the piston of being inserted in the inside of cylinder, the piston rod of being fixed set on the piston and the screw head of being fixed set on the top of piston rod, and reset subassembly includes the mounting seat of bolt connection at the outside of cylinder, the positioning rod of being fixed set on the mounting seat, the positioning pipe of being inserted at the outside of positioning rod, the fixed plate of being fixed set on the top of positioning pipe and being connected with the piston rod screw, and the reset spring of being fixed set on the bottom of fixed plate and being fixedly connected with positioning rod. The utility model discloses a reset subassembly, and the reset spring is convenient to replace, and dustproof and waterproof can be simultaneously, and the service life of reset spring is prolonged, and through setting up silicone rubber seal ring, high and low temperature resistance can be good sealing.

Description

Technical Field

[0001] This utility model relates to the technical field of pneumatic actuators for AMT clutches, specifically a pneumatic actuator for AMT clutches with high and low temperature resistant silicone rubber seals. Background Technology

[0002] Pneumatic clutch actuators achieve automated clutch engagement and disengagement through pneumatic pressure. During operation, the piston moves linearly under air pressure, connecting to the clutch release bearing via a push rod or cable. To reset, the air pressure is released, at which point the return spring pushes the piston back to its original position, ensuring clutch engagement. However, the return spring is typically installed inside the cylinder; if damaged, it needs to be disassembled and replaced, significantly increasing the user's burden and presenting certain drawbacks. Utility Model Content

[0003] The present invention aims to solve the problems existing in the prior art or related technologies.

[0004] Therefore, the technical solution adopted by this utility model is as follows: a pneumatic actuator for an AMT clutch with high and low temperature resistant silicone rubber seal, including a cylinder, a lower end cover, an upper end cover, a pushing assembly, and a reset assembly. The lower end cover is bolted to the bottom of the cylinder, and the upper end cover is bolted to the top of the cylinder. The pushing assembly includes a piston inserted inside the cylinder, a piston rod fixedly mounted on the piston, and a threaded head fixedly mounted on the top of the piston rod. The reset assembly includes a mounting seat bolted to the outside of the cylinder, a positioning rod fixedly mounted on the mounting seat, a positioning tube inserted outside the positioning rod, a fixing plate fixedly mounted on the top of the positioning tube and screwed to the piston rod, and a reset spring fixedly mounted on the bottom of the fixing plate and fixedly connected to the positioning rod.

[0005] Preferably, the lower end cover has an air inlet at its front end and a first silicone rubber sealing ring and a buffer pad are fixedly provided at its top end.

[0006] Preferably, the upper end cover has an exhaust hole at its front end and a second silicone rubber sealing ring is fixedly provided at its bottom end.

[0007] Preferably, two double-lip silicone rubber sealing rings are fixedly provided on the outer side of the piston.

[0008] Preferably, a horizontal plate for fixing the reset assembly is fixedly provided on the outer side of the piston rod.

[0009] Preferably, both the mounting base and the fixing plate have through holes.

[0010] Preferably, there are two reset components, which are symmetrically distributed.

[0011] By adopting the above technical solution, the beneficial effects achieved by this utility model are as follows: The mounting base of the reset component in this utility model is fixed by bolts, and the fixing plate is fixed by screws, so the reset spring can be removed without disassembling the cylinder for replacement. At the same time, the reset spring is located inside the positioning rod and positioning tube, so the positioning rod and positioning tube can seal the reset spring, achieving a waterproof and dustproof effect, greatly extending the service life of the reset spring. Furthermore, the first silicone rubber sealing ring, the second silicone rubber sealing ring, and the double-lip silicone rubber sealing ring are all made of silicone rubber. Silicone rubber has advantages such as extreme temperature adaptability, aging resistance, chemical corrosion resistance, and stable sealing performance, thereby extending the service life of this utility model. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model;

[0013] Figure 2 This utility model Figure 1 Schematic diagram of the lower end cap;

[0014] Figure 3 This utility model Figure 1 Schematic diagram of the upper and middle end caps;

[0015] Figure 4 This utility model Figure 1 A schematic diagram of the structure of the central driving component;

[0016] Figure 5 This utility model Figure 1 A schematic diagram showing the disassembled state of the reset component;

[0017] Figure 6 This utility model Figure 1 A schematic diagram of the reset component.

[0018] Figure label:

[0019] 100. Cylinder;

[0020] 200. Lower end cap; 201. Air inlet; 202. First silicone rubber sealing ring; 203. Buffer pad;

[0021] 300. Top cover; 301. Vent hole; 302. Second silicone rubber sealing ring;

[0022] 400. Push assembly; 401. Piston; 402. Double-lip silicone rubber seal; 403. Piston rod; 4031. Horizontal plate; 404. Threaded head;

[0023] 500. Reset assembly; 501. Mounting base; 502. Positioning rod; 503. Positioning tube; 504. Fixing plate; 505. Reset spring. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0025] The following describes some embodiments of the present invention with reference to the accompanying drawings, providing a pneumatic actuator for an AMT clutch with a high and low temperature resistant silicone rubber seal.

[0026] Example 1:

[0027] Reference Figure 1-6 This is the first embodiment of the present invention. This embodiment provides a pneumatic actuator for an AMT clutch with a high and low temperature resistant silicone rubber seal, including a cylinder 100, a lower end cover 200, an upper end cover 300, a push assembly 400, and a reset assembly 500.

[0028] Specifically, the lower end cover 200 is bolted to the bottom of the cylinder 100. An air inlet 201 is provided at the front end of the lower end cover 200. A first silicone rubber sealing ring 202 and a buffer pad 203 are fixedly provided at the top of the lower end cover 200. In use, gas can be supplied to the lower end cover 200 and the cylinder 100 through the air inlet 201 so that the push assembly 400 can be moved by air pressure. The first silicone rubber sealing ring 202 can play a sealing role to prevent air leakage from the gap between the lower end cover 200 and the cylinder 100. The buffer pad 203 plays a buffering role to prevent the piston 401 from damaging the lower end cover 200.

[0029] Specifically, the upper end cover 300 is bolted to the top of the cylinder 100. The front end of the upper end cover 300 is provided with an exhaust hole 301, and the bottom end of the upper end cover 300 is fixedly provided with a second silicone rubber sealing ring 302. During use, the gas in the cylinder 100 can be discharged through the exhaust hole 301 to maintain the gas pressure balance in the cylinder 100, while the second silicone rubber sealing ring 302 can play a sealing role to prevent air leakage due to gaps between the upper end cover 300 and the cylinder 100.

[0030] Specifically, the actuating assembly 400 includes a piston 401 inserted inside the cylinder 100, a piston rod 403 fixedly mounted on the piston 401, and a threaded head 404 fixedly mounted on the top of the piston rod 403. A horizontal plate 4031 for fixing the reset assembly 500 is fixedly mounted on the outer side of the piston rod 403. Two double-lip silicone rubber sealing rings 402 are fixedly mounted on the outer side of the piston 401. In use, the clutch can be connected through the threaded head 404, and the piston rod 403 can be driven by the piston 401 to push the clutch. The double-lip silicone rubber sealing rings 402 can greatly improve the sealing performance of the piston 401 and prevent air leakage. Then, the horizontal plate 4031 can be used to conveniently fix the reset assembly 500.

[0031] Specifically, the reset assembly 500 includes a mounting base 501 bolted to the outside of the cylinder 100, a positioning rod 502 fixedly mounted on the mounting base 501, a positioning tube 503 inserted through the outside of the positioning rod 502, a fixing plate 504 fixedly mounted at the top of the positioning tube 503 and screwed to the piston rod 403, and a reset spring 505 fixedly mounted at the bottom of the fixing plate 504 and fixedly connected to the positioning rod 502. Both the mounting base 501 and the fixing plate 504 have through holes. Two reset assemblies 500 are provided, symmetrically distributed. In use, the reset spring 505 pulls the piston rod 403 to reset the piston 401. The through holes allow the mounting base 501 and the fixing plate 504 to pass through for fixation. The positioning rod 502, in cooperation with the positioning tube 503, seals the reset spring 505, preventing dust and water damage, greatly delaying corrosion, and extending its service life.

[0032] The working principle and usage process of this utility model are as follows: During use, a certain amount of gas can be supplied to the lower end cover 200 and cylinder 100 through the air inlet 201. Due to the presence of air pressure, the piston 401 of the pushing assembly 400 will drive the piston rod 403 to move. During the movement of the piston rod 403, it will connect to the clutch release bearing and then release the gas. After release, due to the elasticity of the return spring 505, the piston rod 403 can be pulled back to move, thus resetting. During the resetting process, the positioning tube 503 will move outside the positioning rod 502, which can seal the return spring 505. When the return spring 505 is damaged, the fixing plate 504 can be removed by rotating the screw, and then the mounting base 501 can be removed by rotating the bolt. After disassembly, the reset assembly 500 can be directly taken out. After removal, the new reset assembly 500 can be fixed on the cylinder 100 and piston rod 403.

[0033] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A pneumatic actuator for an AMT clutch with a high and low temperature resistant silicone rubber seal, characterized in that, include: Cylinder (100); The lower end cap (200) is bolted to the bottom of the cylinder (100); The upper end cap (300) is bolted to the top of the cylinder (100); The actuating assembly (400) includes a piston (401) inserted inside the cylinder (100), a piston rod (403) fixedly disposed on the piston (401), and a threaded head (404) fixedly disposed at the top end of the piston rod (403); The reset assembly (500) includes a mounting base (501) bolted to the outside of the cylinder (100), a positioning rod (502) fixedly mounted on the mounting base (501), a positioning tube (503) inserted through the outside of the positioning rod (502), a fixing plate (504) fixedly mounted on the top end of the positioning tube (503) and screwed to the piston rod (403), and a reset spring (505) fixedly mounted on the bottom end of the fixing plate (504) and fixedly connected to the positioning rod (502).

2. The high and low temperature resistant silicone rubber sealed AMT clutch pneumatic actuator according to claim 1, characterized in that, The lower end cover (200) has an air inlet (201) at its front end, and a first silicone rubber sealing ring (202) and a buffer pad (203) are fixedly provided at the top end of the lower end cover (200).

3. The high and low temperature resistant silicone rubber sealed AMT clutch pneumatic actuator according to claim 1, characterized in that, The upper end cover (300) has an exhaust hole (301) at its front end and a second silicone rubber sealing ring (302) is fixedly provided at its bottom end.

4. The high and low temperature resistant silicone rubber sealed AMT clutch pneumatic actuator according to claim 1, characterized in that, Two double-lip silicone rubber sealing rings (402) are fixedly installed on the outer side of the piston (401).

5. The high and low temperature resistant silicone rubber sealed AMT clutch pneumatic actuator according to claim 1, characterized in that, A horizontal plate (4031) for fixing the reset assembly (500) is fixedly provided on the outer side of the piston rod (403).

6. The high and low temperature resistant silicone rubber sealed AMT clutch pneumatic actuator according to claim 1, characterized in that, Both the mounting base (501) and the fixing plate (504) have through holes.

7. The high and low temperature resistant silicone rubber sealed AMT clutch pneumatic actuator according to claim 1, characterized in that, There are two reset components (500), and the two reset components (500) are symmetrically distributed.

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