A clutch hydraulic actuator power assembly

Abstract

The present invention belongs to the research field of automobile hydraulic technology, and specifically relates to a clutch hydraulic actuator power assembly, including a valve body, a half coupling one and a half coupling two. The half coupling one and the half coupling two are detachably arranged together, and the half coupling two is detachably arranged on the valve body. The present invention arranges the valve body of the hydraulic oil circuit between the motor and the pump, and overlaps with the coupling, which effectively reduces the space occupied by the power part of the clutch hydraulic actuator in the automobile transmission system, and has a high degree of integration; at the same time, it can reduce the eccentricity caused by the excessive length of the coupling shaft, thereby reducing the failure rate; it has the characteristics of simple structure, good centering, convenient disassembly and assembly, wide applicability, low cost, and easy processing.

Description

Technical Field

[0001] The invention belongs to the research field of automobile hydraulic technology and relates to a clutch hydraulic actuator power component. Background Art

[0002] Based on its own advantages, the electronically controlled hydraulic clutch actuator is widely used in clutch control systems. However, in the control system of the electronically controlled hydraulic clutch actuator of automobiles, the hydraulic valve body needs a variety of switch valves, proportional valves, and pressure regulating valves to work together to achieve the control effect. Therefore, the oil circuit is complicated, the required valve body is large in size, difficult to process, and cannot be arranged between the drive motor and the gear pump. In the pump-controlled cylinder system, the gear pump is generally driven by the drive motor. Due to the high price of the drive motor and the gear pump, in order to reduce the damage rate, usually only one side of the rotor is exposed, and the rest of the surface is a closed structure. At this time, a coupling needs to be designed to connect the drive motor and the gear pump rotor. However, since a through-hole encoder is required to measure the speed of synchronous rotation, the length of the coupling must be extended at this time. The excessive length of the coupling will cause vibration during operation, resulting in eccentricity between the motor and the gear pump rotor, which is easy to cause damage to the drive motor or the gear pump rotor. The traditional layout of the pump-controlled cylinder system is: drive motor-coupling-pump-hydraulic oil circuit (valve body)-hydraulic cylinder, which occupies a large space and has poor integration. Summary of the invention

[0003] In view of the problems existing in the above-mentioned prior art, the present invention proposes a clutch hydraulic actuator power assembly, which has a simple structure, good centering, convenient disassembly and assembly, wide applicability, low cost, and easy processing. It effectively reduces the space occupied by the power part of the clutch hydraulic actuator in the automobile transmission system, has a high degree of integration, and can achieve higher-precision pressure and flow control.

[0004] In order to achieve the above object, the present invention adopts the following technical scheme:

[0005] A clutch actuator power assembly includes a valve body and a matching coupling, wherein the coupling includes a first half coupling and a second half coupling. One end of the second half coupling is detachably arranged on the valve body, and the other end of the second half coupling is detachably arranged together with the first half coupling.

[0006] The valve body is in the shape of a rectangular parallelepiped and is provided with an insertion port for inserting a plug-in switch valve.

[0007] A gear pump end insertion port is arranged on one side of the valve body, and a gear pump oil outlet is arranged on the lower side of the gear pump end insertion port.

[0008] The other side of the valve body is provided with a motor end insertion port, the motor end insertion port is connected with the gear pump end insertion port, and one side of the motor end insertion port is provided with a through encoder fixing screw hole.

[0009] A hydraulic sensor screw-in threaded hole and a plug are provided on one end surface of the valve body. A ferrule joint threaded hole is provided on the other end surface of the valve body, and the ferrule joint threaded hole is connected to the oil outlet pipe. The hydraulic sensor screw-in threaded hole, the gear pump oil outlet and the ferrule joint threaded hole are connected inside the valve body.

[0010] The two ends of the half coupling are respectively provided with a motor head fixing surface and a plug-in A part. The motor head fixing surface is a circular structure, and the half coupling is fixedly arranged at the center position of the motor head fixing surface. The plug-in A part is provided with a screw hole.

[0011] The second half coupling is provided with a plug-in B part. The plug-in B part is provided at one end of the second half coupling. The other end of the second half coupling is provided with a gear pump rotor insertion groove. The second half coupling is provided with a through hole, and the through hole is located at the axial center position of the second half coupling.

[0012] Furthermore, a first switch valve fixing screw hole and a second switch valve fixing screw hole are respectively provided on both sides of the insertion port of the plug-in switch valve.

[0013] Furthermore, a first gear pump fixing screw and a second gear pump fixing screw are respectively provided on both sides of the insertion port at the end of the gear pump.

[0014] Furthermore, a motor fixing screw 1 and a motor fixing screw 2 are respectively provided on both sides of the insertion opening at the end of the motor.

[0015] Furthermore, the valve body has a length of 71 mm, a width of 43 mm, and a height of 41 mm.

[0016] Furthermore, the motor head fixing surface can be processed into grooves suitable for inserting the motor head and the rotor according to the shapes of the motor heads and rotors of different motors.

[0017] Furthermore, the plug-in portion A and the plug-in portion B are obtained by cutting the diameter of the same shaft into three equal parts, which is simple and convenient to process and can be connected together by plugging.

[0018] The beneficial effects of the present invention are as follows: the valve body of the hydraulic oil circuit is arranged between the motor and the pump, and is arranged overlapping with the coupling, which effectively reduces the space occupied by the power part of the clutch hydraulic actuator in the automobile transmission system. The valve body has a simple and compact structure, low manufacturing cost, and high integration. The measured internal pressure of the valve body and the motor speed signal can be sent to the automobile ECU. After the motor speed and the internal pressure of the valve body are calibrated, the speed sensor can be removed because a special motor insertion port is provided on the valve body, making the structure more compact and achieving high-precision pressure and flow control. At the same time, it can reduce the eccentricity caused by the excessive length of the coupling shaft, reduce the failure rate, and has the characteristics of simple structure, good centering, convenient disassembly and assembly, wide applicability, low cost, and easy processing. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of the present invention;

[0020] Figure 2 and Figure 3 It is a schematic diagram of the three-dimensional structure of the valve body;

[0021] Figure 4 This is the main view of the valve body;

[0022] Figure 5 It is a schematic diagram of the flow direction of hydraulic oil inside the valve body;

[0023] Figure 6 It is a structural schematic diagram of a half coupling;

[0024] Figure 7-8 Schematic diagram of the structure of the second half coupling;

[0025] Fig. 9 Schematic diagram of the assembly steps of half coupling one and half coupling two.

[0026] Figure markings: 1-valve body, 2-insertion port for plug-in switch valve, 3-switching valve fixing screw hole one, 4-switching valve fixing screw hole two, 5-hydraulic sensor screwed into threaded hole; 6-gear pump fixing screw two, 7-gear pump end insertion port, 8-plug, 9-gear pump fixing screw one, 10-gear pump oil outlet, 11-motor end insertion port, 12-motor fixing screw one, 13-motor fixing screw two, 14-through encoder fixing screw hole, 15-card sleeve joint threaded hole, 16-half coupling one, 17-half coupling two, 18-motor head fixing surface, 19-plug-in part A, 20-screw hole, 21-plug-in part B; 22-through hole, 23-gear pump rotor insertion groove. DETAILED DESCRIPTION

[0027] For ease of understanding, the technical solution of the present invention is further described in detail below with reference to the accompanying drawings and through embodiments:

[0028] like Figure 1-Figure 9 As shown, a clutch actuator power assembly includes a valve body 1 and its matching half coupling 1 16 and half coupling 2 17. Half coupling 2 17 is detachably arranged on the valve body 1, and half coupling 1 16 and half coupling 2 17 are detachably arranged together. Half coupling 1 16 and half coupling 2 17 form a coupling.

[0029] The valve body 1 is in the shape of a rectangular parallelepiped. The overall size of the valve body 1 is very small and the structure is compact. The length is 71 mm, the width is 43 mm, and the height is 41 mm.

[0030] The valve body 1 is provided with a plug-in switch valve insertion port 2, and the two sides of the plug-in switch valve insertion port 2 are provided with a switch valve fixing screw hole 1 3 and a switch valve fixing screw hole 2 4. The switch valve insertion port 2 is matched with a solenoid switch valve for automobiles.

[0031] A gear pump end insertion port 7 is provided on one side of the valve body 1, and a gear pump fixing screw 1 9 and a gear pump fixing screw 2 6 are provided on both sides of the gear pump end insertion port 7. A gear pump oil outlet 10 is provided below the gear pump end insertion port 7. The gear pump matched with the gear pump end insertion port 7 is a constant volume gearbox oil pump.

[0032] A motor end insertion port 11 is provided on the side of the valve body 1 opposite to the gear pump end insertion port 7, and motor fixing screws 12 and 13 are provided on both sides of the motor end insertion port 11. The motor end insertion port 11 is connected to the gear pump end insertion port 7. A through encoder fixing screw hole 14 is provided on one side of the motor end insertion port 11, and the motor matched with the motor end insertion port 11 is a 12V90W automotive AMT motor.

[0033] A hydraulic sensor screw-in threaded hole 5 and a plug 8 are arranged on one end surface of the valve body 1. The hydraulic sensor matched with the hydraulic sensor screw-in threaded hole 5 is a 0-60 bar hydraulic sensor specially used for automobiles. A penetrable incremental encoder is selected as a speed sensor.

[0034] The other end surface of the valve body 1 is provided with a ferrule joint threaded hole 15, which is connected to the oil outlet pipe. The hydraulic sensor is screwed into the threaded hole 5, and the gear pump oil outlet 10 and the ferrule joint threaded hole 15 are connected inside the valve body 1.

[0035] The half coupling 16 is provided with a motor head fixing surface 18 and a plug-in A portion 19, which are respectively provided at both ends of the half coupling 16. The motor head fixing surface 18 is a circular structure, and the half coupling 16 is fixedly provided at the center of the motor head fixing surface 18. A screw hole 20 is provided in the plug-in A portion 19.

[0036] The motor head fixing surface 18 can be processed into grooves suitable for the motor head and rotor to be inserted according to the shapes of the motor head and rotor.

[0037] The second half coupling 17 is provided with a plug-in B part 21. The plug-in B part 21 is provided at one end of the second half coupling 17. The other end of the second half coupling 17 is provided with a gear pump rotor insertion groove 23. The second half coupling 17 is provided with a through hole 22, which is located at the axial center position of the second half coupling 17.

[0038] The plug-in A part 19 and the plug-in B part 21 are obtained by cutting the diameter of the same shaft into three equal parts, which is simple and convenient to process and can be connected together by plugging. The half coupling 16 and the half coupling 2 17 are detachably arranged together by plugging the A part 19 and the plug-in B part 21.

[0039] When in use, insert the half coupling 17 into the gear pump end insertion port 7 of the valve body 1, so that the gear pump rotor insertion slot 23 of the half coupling 17 is aligned with the inner end surface of the gear pump end insertion port 7. The motor head and the rotor are inserted into the motor head fixing surface 18. The through-type encoder is sleeved on the half coupling 16 shaft, a screw is put into the through hole 22, screwed into the screw hole 20, and the gear pump rotor is inserted into the gear pump rotor insertion slot 23, and then the two fastening screws on the through-type encoder are screwed in, against the two side surfaces of the plug-in B part 21, and the plug-in A part 19 and the plug-in B part 21 are fixed, so that the inner ring of the encoder rotates synchronously with the through shaft, and finally the outer ring of the encoder is fixed. The valve body of the hydraulic oil circuit is arranged between the motor and the pump, and overlapped with the coupling. It effectively reduces the space occupied by the power part of the clutch hydraulic actuator in the automobile transmission system, and has a high degree of integration.

[0040] The above embodiments are merely examples or explanations of the technical solutions of the present invention and should not be construed as limiting the technical solutions of the present invention. Obviously, those skilled in the art may make various modifications and variations to the present invention without departing from the spirit and scope of the present invention. If these modifications and variations fall within the scope of the claims of the present invention and their equivalents, the present invention also includes these modifications and variations.

Claims

1. A clutch hydraulic actuator power assembly, comprising a valve body and a matching coupling, wherein the coupling comprises a first half coupling and a second half coupling, wherein the second half coupling is detachably arranged on the valve body, and the first half coupling and the second half coupling are detachably arranged together; The two ends of the half coupling are respectively provided with a motor head fixing surface and a plug-in A part, the motor head fixing surface is a circular structure, the half coupling is fixedly arranged at the center position of the motor head fixing surface, and the plug-in A part is provided with a screw hole; One end of the second half coupling is provided with a gear pump rotor insertion groove, the other end of the second half coupling is provided with a plug-in B part, a through hole is provided in the second half coupling, the through hole is located at the axial center position of the second half coupling, and the first half coupling and the second half coupling are detachably arranged together through the plug-in A part and the plug-in B part; A gear pump end insertion port is provided on one side of the valve body, and the gear pump matched with the gear pump end insertion port is a constant volume transmission oil pump, and a gear pump oil outlet is provided on the lower side of the gear pump end insertion port; A motor end insertion port is provided on the other side of the valve body, and the motor end insertion port and the gear pump end insertion port are located on two opposite sides of the valve body, and the motor matched with the motor end insertion port is a 12V90W automobile AMT motor, and the motor end insertion port is connected with the gear pump end insertion port, and a through-type encoder fixing screw hole is provided on one side of the motor end insertion port; The valve body is in the shape of a rectangular parallelepiped, with a length of 71 mm, a width of 43 mm, and a height of 41 mm.

2. A clutch hydraulic actuator power assembly according to claim 1, characterized in that: The valve body is in the shape of a rectangular parallelepiped and is provided with an insertion port for a plug-in switch valve.

3. A clutch hydraulic actuator power assembly according to claim 1, characterized in that: A hydraulic sensor is screwed into a threaded hole and a plug on one end face of the valve body, and a ferrule joint threaded hole is provided on the other end face of the valve body. The ferrule joint threaded hole is connected to the oil outlet pipe, and the hydraulic sensor threaded hole, the gear pump oil outlet and the ferrule joint threaded hole are connected in the valve body.

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