Clutch slave cylinder with torque limiting structure

Abstract

The utility model provides a clutch slave cylinder with a torque limiting structure, and relates to the field of clutches. The clutch slave cylinder with the torque limiting structure comprises a pump body, an operation mechanism is arranged in the pump body and comprises a sealing pump cover and a piston rod, the sealing pump cover is in threaded connection with the pump body, a protection mechanism is arranged at one end of the piston rod and comprises a linkage sleeve in sliding connection with the piston rod, and the linkage sleeve is in threaded connection with the piston rod. A pressure sensor is fixedly connected to the interior of the linkage sleeve. According to the clutch slave cylinder with the torque limiting structure, the slave cylinder is filled with hydraulic oil, the piston rod is made to move outwards, the linkage sliding block is fixed through the fixing groove, the linkage sleeve and the piston rod are connected together through the linkage sliding block, the piston rod controls the linkage sleeve to operate synchronously, and the torque limiting structure is controlled through the pressure sensor. And when the linkage sleeve is separated from the piston rod, the piston rod extrudes the pressure sensor, so that the pressure sensor sends out alarm information.

Description

Technical Field

[0001] The utility model relates to a clutch sub-pump, in particular to a clutch sub-pump with a torque limiting structure, belonging to the technical field of clutches. Background Art

[0002] The clutch is located in the flywheel housing between the engine and the gearbox. The clutch assembly is fixed to the rear plane of the flywheel with screws. The clutch output shaft is the gearbox input shaft. During the driving process of the car, the driver can step on or release the clutch pedal as needed to temporarily separate and gradually engage the engine and gearbox to cut off or transfer the power input from the engine to the transmission.

[0003] The utility model with patent number CN211820464U discloses a clutch slave cylinder, which belongs to the field of automobile accessories, including a pump body, an exhaust valve fixedly welded on the upper left end of the pump body, a fixing seat fixedly welded on the lower end of the pump body, a piston slidingly sleeved inside the pump body, a spring slidingly sleeved inside the pump body, a push rod fixedly connected to the right end of the piston, and a push rod connected to the right end of the spring; by rotating the outer chuck clockwise to drive the threaded disk to connect with the pump body, the piston can be prevented from detaching from the inside of the pump body, and the pump body can be installed and repaired quickly and conveniently. The design of the sealing ring and the sealing gasket can prevent gas from overflowing.

[0004] In order to facilitate the car shifting, the clutch is used. Although the clutch slave cylinder in the above patent is easy to maintain, if the clutch plate fails, the piston rod continues to run, which is easy to cause clutch damage, thereby increasing the operation failure of the car. For this reason, we provide a clutch slave cylinder with a torque limiting structure to solve the above problems. Utility Model Content

[0005] 1. Technical issues to be solved

[0006] The purpose of the utility model is to provide a clutch sub-cylinder with a torque limiting structure in order to solve the above-mentioned problem, so as to solve the problem that the clutch plate is easily damaged after a failure in the reference document.

[0007] (II) Technical solution

[0008] The utility model is realized through the following technical scheme: a clutch sub-pump with a torque limiting structure.

[0009] It includes a pump body, an operating mechanism is arranged inside the pump body, the operating mechanism includes a sealing pump cover and a piston rod, and the sealing pump cover is threadedly connected to the pump body, a protection mechanism is arranged at one end of the piston rod, the protection mechanism includes a linkage sleeve slidably connected to the piston rod, a pressure sensor is fixedly connected to the inside of the linkage sleeve, a circumferentially arranged fixing groove is opened inside the linkage sleeve, and a linkage slider is slidably connected to the inside of the fixing groove.

[0010] Preferably, a connector is fixedly communicated with the surface of the pump body, a connecting buckle is fixedly connected to the surface of the pump body, a rubber slip ring is fixedly connected to the middle of the sealing pump cover, and the piston rod is slidably connected with the rubber slip ring. Through the connector, the hydraulic oil pipe is communicated with the pump body, and through the connecting buckle, the pump body is fixed on the vehicle.

[0011] Preferably, a piston plate is slidably connected inside the pump body, and the piston rod is fixedly connected to the piston plate. A first telescopic spring is fixedly connected to the surface of the piston plate, and one end of the first telescopic spring is fixedly connected to the sealing pump cover. Through the first telescopic spring, a thrust is provided to the piston plate to push the piston plate back to its original position.

[0012] Preferably, a connecting card slot is formed on the surface of the piston rod, and the linkage slider is clamped with the connecting card slot. A third telescopic spring is fixedly connected to the surface of the linkage slider, and one end of the third telescopic spring is fixedly connected to the fixed slot. Through the third telescopic spring, a thrust is provided to the linkage slider to make the clamping of the linkage slider and the connecting card slot more stable and firm.

[0013] Preferably, a fixed clamping ring is fixedly connected to the surface of the fixed slot, and the fixed clamping ring is clamped with the linkage slider. Through the fixed clamping ring, a certain resistance is provided to the linkage slider. When the linkage sleeve is stuck, the piston rod slides without resistance inside the linkage sleeve.

[0014] Preferably, a connecting rod is fixedly connected to the surface of the linkage sleeve, a protective cover is sleeved on the surface of the connecting rod, and a dust-proof plate is fixedly connected to one end of the linkage sleeve away from the sealing pump cover. Through the connecting rod, the linkage sleeve is connected to the clutch release actuator.

[0015] Preferably, a second telescopic spring is fixedly connected to the surface of the linkage sleeve, and one end of the second telescopic spring is fixedly connected to the sealing pump cover. A protective hose is fixedly connected to the surface of the sealing pump cover, and one end of the protective hose is fixedly connected to the linkage sleeve. Through the second telescopic spring, a pulling force is provided to the linkage sleeve to pull the linkage sleeve back to its original position, facilitating the fixing of the linkage sleeve and the piston rod together.

[0016] The present utility model provides a clutch slave cylinder with a torque limiting structure, and the beneficial effects thereof are as follows:

[0017] 1. The clutch slave cylinder with a torque limiting structure is threadedly connected through a sealed pump cover, which facilitates the maintenance of the clutch slave cylinder. The sealed pump cover and the pump body are combined to form the outer shell of the clutch slave cylinder. The inside of the slave cylinder is filled with hydraulic oil, which causes the piston rod to move outwards, controlling the movement of the clutch paddle. Through the fixed groove, the linkage slider is fixed. Through the linkage slider, the linkage sleeve is connected to the piston rod, enabling the piston rod to control the synchronous operation of the linkage sleeve. When the linkage sleeve and the piston rod are disengaged, the piston rod presses the pressure sensor through the pressure sensor, causing the pressure sensor to send out an alarm message.

[0018] 2. The clutch slave cylinder with a torque limiting structure connects the hydraulic oil pipe to the pump body through a connector, fixes the pump body on the vehicle through a connecting buckle, and fixes the piston rod through a rubber slip ring, making the piston rod slide more smoothly and increasing the operating life of the clutch slave cylinder. The inside of the pump body is filled with hydraulic oil, causing the piston plate to control the piston rod to move outwards. When the hydraulic oil is withdrawn, the first telescopic spring provides a thrust to the piston plate, pushing the piston plate back to its original position. The third telescopic spring provides a thrust to the linkage slider, making the connection between the linkage slider and the connection card slot more stable and firm.

[0019] 3. The clutch slave cylinder with a torque limiting structure provides a certain resistance to the linkage slider through a fixed snap ring. When the linkage sleeve is stuck, the piston rod slides without resistance inside the linkage sleeve, preventing the degree of clutch damage from expanding when the clutch fails. The linkage sleeve is connected to the clutch paddle actuator through a connecting rod, and the connecting rod is protected by a protective cover, improving the stability of the connecting rod during the transportation and storage of the clutch slave cylinder. The linkage sleeve is protected by a dust-proof plate to prevent external impurities from entering and contaminating the linkage sleeve, improving the dust-proof ability of the linkage sleeve. The second telescopic spring provides a pulling force to the linkage sleeve, pulling the linkage sleeve back to its original position after the linkage sleeve is released from the stuck state, facilitating the fixation of the linkage sleeve to the piston rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present utility model;

[0021] Figure 2 It is a schematic diagram of the operating mechanism structure of the present utility model;

[0022] Figure 3 It is a schematic diagram of the protection mechanism structure of the present utility model;

[0023] Figure 4 It is a schematic diagram of the internal structure of the linkage sleeve of the present utility model.

[0024]

SYMBOLS DESCRIPTION OF MAIN COMPONENTS

[0025] 1. Pump body;

[0026] 2. Operating mechanism; 201. Sealing pump cover; 202. Connector; 203. Piston rod; 204. Piston plate; 205. First telescopic spring; 206. Rubber slip ring; 207. Connecting buckle;

[0027] 3. Protection mechanism; 301. Linkage sleeve; 302. Connecting rod; 303. Protective cover; 304. Dust-proof plate; 305. Second telescopic spring; 306. Fixed groove; 307. Third telescopic spring; 308. Linkage slider; 309. Connecting card slot; 310. Fixed snap ring; 311. Pressure sensor; 312. Protective hose. Specific embodiments

[0028] An embodiment of the present utility model provides a clutch slave cylinder with a torque limiting structure.

[0029] Please refer to Figure 1 and Figure 2 , including a pump body 1. An operating mechanism 2 is arranged inside the pump body 1. The operating mechanism 2 includes a sealing pump cover 201 and a piston rod 203. The sealing pump cover 201 is threadedly connected to the pump body 1. By the threaded connection of the sealing pump cover 201, it is convenient to maintain the clutch slave cylinder. The sealing pump cover 201 and the pump body 1 are combined to form the outer shell of the clutch slave cylinder. The inside of the slave cylinder is filled with hydraulic oil, so that the piston rod 203 moves outwards to control the movement of the clutch paddle.

[0030] A connector 202 is fixedly communicated with the surface of the pump body 1. A connecting buckle 207 is fixedly connected to the surface of the pump body 1. A rubber slip ring 206 is fixedly connected to the middle of the sealing pump cover 201. The piston rod 203 is slidably connected to the rubber slip ring 206. Through the connector 202, the hydraulic oil pipe is communicated with the pump body 1. Through the connecting buckle 207, the pump body 1 is fixed on the vehicle. Through the rubber slip ring 206, the piston rod 203 is fixed, making the piston rod 203 slide more smoothly and improving the operating life of the clutch slave cylinder.

[0031] A piston plate 204 is slidably connected inside the pump body 1. The piston rod 203 is fixedly connected to the piston plate 204. A first telescopic spring 205 is fixedly connected to the surface of the piston plate 204. One end of the first telescopic spring 205 is fixedly connected to the sealing pump cover 201. When the inside of the pump body 1 is filled with hydraulic oil, the piston plate 204 controls the piston rod 203 to move outwards. When the hydraulic oil is withdrawn, the first telescopic spring 205 provides a thrust to the piston plate 204 to push the piston plate 204 back to its original position.

[0032] Please refer to Figure 3 and Figure 4, a protection mechanism 3 is provided at one end of the piston rod 203. The protection mechanism 3 includes a linkage sleeve 301 slidably connected to the piston rod 203. A pressure sensor 311 is fixedly connected inside the linkage sleeve 301. A circumferentially arranged fixing groove 306 is formed inside the linkage sleeve 301. A linkage slider 308 is slidably connected inside the fixing groove 306. The linkage slider 308 is fixed through the fixing groove 306. Through the linkage slider 308, the linkage sleeve 301 is connected to the piston rod 203, enabling the piston rod 203 to control the synchronous operation of the linkage sleeve 301. Through the pressure sensor 311, when the linkage sleeve 301 is separated from the piston rod 203, the pressure sensor 311 is squeezed by the piston rod 203, causing the pressure sensor 311 to send out an alarm message.

[0033] A connection card slot 309 is formed on the surface of the piston rod 203, and the linkage slider 308 is clamped with the connection card slot 309. A third telescopic spring 307 is fixedly connected to the surface of the linkage slider 308, and one end of the third telescopic spring 307 is fixedly connected to the fixing groove 306. Through the third telescopic spring 307, a thrust is provided to the linkage slider 308, making the clamping of the linkage slider 308 with the connection card slot 309 more stable and firm.

[0034] A fixing snap ring 310 is fixedly connected to the surface of the fixing groove 306, and the fixing snap ring 310 is clamped with the linkage slider 308. Through the fixing snap ring 310, a certain resistance is provided to the linkage slider 308. When the linkage sleeve 301 is stuck, the piston rod 203 slides without resistance inside the linkage sleeve 301, avoiding the expansion of the damage degree of the clutch when the clutch fails.

[0035] A connecting rod 302 is fixedly connected to the surface of the linkage sleeve 301. A protective cover 303 is sleeved on the surface of the connecting rod 302. A dust-proof plate 304 is fixedly connected to one end of the linkage sleeve 301 away from the sealing pump cover 201. Through the connecting rod 302, the linkage sleeve 301 is connected to the clutch release actuator. Through the protective cover 303, the connecting rod 302 is protected, improving the stability of the connecting rod 302 during the transportation and storage of the clutch slave cylinder. Through the dust-proof plate 304, the linkage sleeve 301 is protected, preventing external impurities from entering and causing pollution to the linkage sleeve 301, and improving the dust-proof ability of the linkage sleeve 301.

[0036] Please refer to again Figure 1 and Figure 3, a second telescopic spring 305 is fixedly connected to the surface of the linkage sleeve 301, and one end of the second telescopic spring 305 is fixedly connected to the sealing pump cover 201. A protective hose 312 is fixedly connected to the surface of the sealing pump cover 201, and one end of the protective hose 312 is fixedly connected to the linkage sleeve 301. Through the second telescopic spring 305, a pulling force is provided to the linkage sleeve 301. After the linkage sleeve 301 is released from being stuck, the linkage sleeve 301 is pulled back to its original position, facilitating the fixation of the linkage sleeve 301 to the piston rod 203.

[0037] When the present utility model is in use: The pump body 1 is fixed to the vehicle through the connection buckle 207. The linkage sleeve 301 is connected to the clutch paddle shifter through the connecting rod 302. When the clutch paddle shifter fails, the linkage sleeve 301 is stuck. When the piston rod 203 moves forward, the piston rod 203 presses the linkage slider 308, causing the linkage slider 308 to move outward and being pressed into the fixing groove 306. The linkage slider 308 is clamped by the fixing snap ring 310. The piston rod 203 continues to move, and the pressure sensor 311 is pressed by the piston rod 203. The pressure sensor 311 sends out an alarm message to prompt the driver that the clutch has failed. And through the fixing snap ring 310, the piston rod 203 slides without resistance inside the linkage sleeve 301. Through the second telescopic spring 305, the linkage sleeve 301 is pulled back to its original position. Through the third telescopic spring 307, a pushing force is provided to the linkage slider 308, and the linkage slider 308 is clamped with the connecting card slot 309, reconnecting the linkage sleeve 301 to the piston rod 203. Through the above device, when the clutch fails, the linkage is released to avoid expanding the damage of the clutch and improve the stability of the clutch operation.

[0038] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principle of the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A clutch slave cylinder with a torque limiting structure, comprising a pump body (1), characterized in that: Inside the pump body (1), an operating mechanism (2) is provided. The operating mechanism (2) includes a sealing pump cover (201) and a piston rod (203). The sealing pump cover (201) is threadedly connected to the pump body (1). One end of the piston rod (203) is provided with a protection mechanism (3). The protection mechanism (3) includes a linkage sleeve (301) slidably connected to the piston rod (203). Inside the linkage sleeve (301), a pressure sensor (311) is fixedly connected. Inside the linkage sleeve (301), fixed slots (306) arranged in a circular pattern are provided. Inside the fixed slots (306), linkage sliders (308) are slidably connected.

2. The clutch slave cylinder with a torque limiting structure according to claim 1, characterized in that: On the surface of the pump body (1), a connector (202) is fixedly communicated. On the surface of the pump body (1), a connection buckle (207) is fixedly connected. In the middle of the sealing pump cover (201), a rubber sliding ring (206) is fixedly connected. The piston rod (203) is slidably connected to the rubber sliding ring (206).

3. The clutch slave cylinder with a torque limiting structure according to claim 1, wherein: Inside the pump body (1), a piston plate (204) is slidably connected. The piston rod (203) is fixedly connected to the piston plate (204). On the surface of the piston plate (204), a first telescopic spring (205) is fixedly connected. One end of the first telescopic spring (205) is fixedly connected to the sealing pump cover (201).

4. A clutch slave cylinder with a torque limiting structure according to claim 1, characterized in that: On the surface of the piston rod (203), a connection card slot (309) is provided. The linkage slider (308) is clamped to the connection card slot (309). On the surface of the linkage slider (308), a third telescopic spring (307) is fixedly connected. One end of the third telescopic spring (307) is fixedly connected to the fixed slot (306).

5. A clutch slave cylinder with a torque limiting structure according to claim 1, characterized in that: On the surface of the fixed slot (306), a fixed snap ring (310) is fixedly connected. The fixed snap ring (310) is clamped to the linkage slider (308).

6. The clutch slave cylinder with a torque limiting structure according to claim 1, wherein: On the surface of the linkage sleeve (301), a connecting rod (302) is fixedly connected. A protective cover (303) is sleeved on the surface of the connecting rod (302). One end of the linkage sleeve (301) away from the sealing pump cover (201) is fixedly connected to a dust-proof plate (304).

7. A clutch slave cylinder with a torque limiting structure according to claim 1, characterized in that: On the surface of the linkage sleeve (301), a second telescopic spring (305) is fixedly connected. One end of the second telescopic spring (305) is fixedly connected to the sealing pump cover (201). On the surface of the sealing pump cover (201), a protective hose (312) is fixedly connected. One end of the protective hose (312) is fixedly connected to the linkage sleeve (301).

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