Transmission clutch device and vehicle

Abstract

The transmission clutch device comprises a first shaft piece, a second shaft piece and a switching assembly, the first shaft piece is provided with a through axial hole and at least one radial hole which penetrates through the peripheral side and communicates with the axial hole, the second shaft piece movably penetrates through the axial hole, the second shaft piece is provided with at least one spherical notch groove located in the peripheral side, and the switching assembly is arranged in the spherical notch groove. The switching assembly comprises limiting parts, a pressing cap, an elastic piece and a ball piece, the limiting parts are fixedly connected to the peripheral side of the first shaft piece, the peripheral side of the first shaft piece is movably sleeved with the pressing cap and the elastic piece, the pressing cap and the elastic piece are sequentially arranged between the two limiting parts in the axial direction of the first shaft piece, the pressing cap is provided with a butt joint groove located in the inner peripheral side, and the ball piece is arranged in the butt joint groove. The ball piece is movably installed in the radial hole and has a joint state in which the ball piece is attached to the wall face of the spherical notch groove and a separation state in which the ball piece is partially contained in the butt joint groove and separated from the spherical notch groove. The device has the advantages of being compact in structure, convenient to operate, stable in connection and thorough in separation.

Description

Technical Field

[0001] The present invention relates to the technical field of mechanical transmission, and in particular to a transmission clutch device and a vehicle. Background Art

[0002] The transmission clutch device is a device used to connect and disconnect the output and input ends of the transmission mechanism, and is widely used in various mechanical transmission systems. At present, there are many types of transmission clutch devices produced in China, mainly electromagnetic clutch, hydraulic clutch, dry clutch, wet clutch, tooth type and friction type, etc.

[0003] In practical applications, many clutch devices have complex structures, high manufacturing costs, and inconvenient clutch switching operations; there are also some clutch devices with simple structures, but their reliability is low and they do not completely separate the transmission system; there are also some clutch devices whose shafts can only rotate in one direction and can only realize a one-way clutch function, which limits the application effect of the transmission system. Summary of the invention

[0004] In order to solve the above problems, the present application provides a transmission clutch device and a vehicle.

[0005] The present application provides a transmission clutch device, including a first shaft member, a second shaft member and a switching assembly, the first shaft member is provided with an axial hole extending therethrough and at least one radial hole extending through the outer circumference and connected to the axial hole, the second shaft member is movably arranged in the axial hole, the second shaft member is provided with at least one ball-cuff groove located on the outer circumference, the ball-cuff height of the ball-cuff groove is smaller than the ball-cuff radius, the switching assembly includes a limiting part, a clamping cap, an elastic part and a ball member, two limiting parts are relatively provided, the limiting parts are fixedly connected to the outer circumference of the first shaft member, the clamping cap and the elastic part are movably sleeved on the outer circumference of the first shaft member, the clamping cap and the elastic part are sequentially arranged between the two limiting parts along the axial direction of the first shaft member, the clamping cap is provided with a docking groove located on the inner circumference, the ball member is movably installed in the radial hole, the ball member has an engaged state in which it is attached to the wall of the ball-cuff groove and a separated state in which it is partially accommodated in the docking groove and separated from the ball-cuff groove.

[0006] In some embodiments, the first limiting portion, which is one of the limiting portions, is located on one side of the clamping cap. The first limiting portion is provided with a slot, and the clamping cap is provided with a claw. When the ball piece is in an engaged state, the claw is inserted into the slot, and when the ball piece is in a separated state, the claw is separated from the slot.

[0007] In some embodiments, the first limiting portion is a retaining ring, the circumferential direction of the retaining ring is the same as the circumferential direction of the first shaft, and the retaining grooves are distributed along the axial direction of the retaining ring.

[0008] In some embodiments, the second limiting portion, which is one of the limiting portions, is located on one side of the elastic member, and the second limiting portion is an end cover, which includes a connecting portion and a cover portion connected to the connecting portion, the connecting portion is fixedly connected to the outer peripheral side of the first shaft member, the cover portion is spaced apart from and encloses the outer peripheral side of the first shaft member to form a limiting cavity, and the elastic member is inserted into the limiting cavity.

[0009] In some embodiments, the connecting portion is connected to the first shaft member via threads.

[0010] In some embodiments, the number of ball components, radial holes and ball slots are the same and at least two, each radial hole is equipped with a ball component, all radial holes are evenly spaced along the circumference of the first shaft component, and all ball slots are evenly spaced along the circumference of the second shaft component.

[0011] In some embodiments, the docking groove is an annular groove, and the annular direction of the annular groove is the same as the annular direction of the compression cap.

[0012] In some embodiments, the second shaft member is provided with a wrench fitting portion, and the wrench fitting portion is used to cooperate with a wrench to realize the rotation of the second shaft member.

[0013] In some embodiments, the closest distance between the wrench fitting portion and the spherical segment groove is equal to the distance between the axial end through which the axial hole in the first shaft member passes and the radial hole.

[0014] A vehicle comprises the transmission clutch device mentioned above.

[0015] The beneficial effects of the present application are as follows: a transmission clutch device is provided, including a first shaft, a second shaft and a switching assembly, the second shaft is movably arranged on the first shaft, and the transmission connection or release of the transmission state of the first shaft and the second shaft is achieved through the switching assembly, the switching assembly includes a limiting portion, a clamping cap, an elastic member and a ball member, the clamping cap and the elastic member are both movably sleeved on the outer peripheral side of the first shaft, and a limiting function for the clamping cap and the elastic member is provided through two relative limiting portions, the clamping cap and the elastic member are sequentially arranged between the two limiting portions along the axial direction of the first shaft, the clamping cap is provided with a docking groove located on the inner peripheral side, the first shaft is provided with a penetrating axial hole and at least one penetrating outer peripheral side and with The radial hole is connected to the axial hole, and the second shaft member is provided with at least one ball-cup groove located on the outer peripheral side. The ball-cup height of the ball-cup groove is smaller than the ball-cup radius. The docking groove, the radial hole and the ball-cup groove cooperate with each other, and the position of the ball member in the transmission clutch device is adjusted to realize the switching between the engaged state and the disengaged state. The ball member is movably installed in the radial hole, and part of the sphere of the ball member is always located within the spatial range of the radial hole; when no external force is applied to the clamping cap, the elastic member presses the clamping cap against the limiting part. At this time, the docking groove of the clamping cap is staggered with the radial hole, part of the sphere of the ball member is located within the spatial range of the ball-cup groove, and the ball member fits with the wall surface of the ball-cup groove, so that the transmission of the first shaft member and the second shaft member is realized through the ball member. When the clutch is in the engaged state, the spring is in the engaged state; when an external force is applied to the clamping cap to further compress the elastic member until the butt joint groove of the clamping cap is aligned with the radial hole, part of the sphere of the ball member enters the butt joint groove of the clamping cap, and part of the sphere of the ball member leaves the spatial range of the ball notch groove, thereby releasing the transmission connection between the first shaft member and the second shaft member. At this time, the clutch is in the disengaged state; in the transmission system scheme using the transmission clutch device of the present application, the transmission system can be engaged and disengaged, the engagement process is smooth, and the ball member completely leaves the ball notch groove when in the disengaged state, thereby solving the defect of incomplete separation of the transmission system and having the advantage of high reliability; In the transmission clutch device of the present application, either the first shaft member can be selected as the input shaft and the second shaft member can be selected as the output shaft, or the first shaft member can be selected as the output shaft and the second shaft member can be selected as the input shaft. In the transmission clutch device of the present application, the first shaft member and the second shaft member can each rotate either clockwise or counterclockwise, thereby solving the defect of the unidirectional clutch function of the clutch device. In addition, the transmission clutch device of the present application also has advantages in terms of structural complexity, manufacturing cost and operation, and has the characteristics of compact and simple structure, low manufacturing cost, and the switching between the engaged state and the disengaged state can be achieved by adjusting the clamping cap, thereby having the advantage of convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention.

[0017] Figure 1 A schematic diagram of the appearance structure of a transmission clutch device provided in this application;

[0018] Figure 2 A cross-sectional schematic diagram of a transmission clutch device provided in the present application when in an engaged state;

[0019] Figure 3 This is a cross-sectional schematic diagram of a transmission clutch device provided in the present application when it is in a disengaged state.

[0020] The accompanying drawings are marked: 10-first shaft member, 11-axial hole, 12-radial hole, 20-second shaft member, 21-ball groove, 22-wrench fitting part, 31-limiting part, 311-first limiting part, 3111-slot, 312-second limiting part, 3121-connecting part, 3122-cover part, 32-clamping cap, 321-docking groove, 322-claw, 33-elastic part, 34-ball member. DETAILED DESCRIPTION

[0021] Please refer to Figures 1 to 3 The present application discloses a transmission clutch device, hereinafter referred to as the device, Figure 1 shows the appearance of the device, or more precisely Figure 1 The device is shown in its engaged state. Figure 2 A cross-sectional view of the device in an engaged state is shown. Figure 3 A cross-sectional view of the device in a disassembled state is shown.

[0022] The device comprises a first shaft 10, a second shaft 20 and a switching assembly. The second shaft 20 is movably arranged on the first shaft 10. The switching assembly is used to realize the transmission connection or release of the transmission state between the first shaft 10 and the second shaft 20.

[0023] Please refer to Figure 2 The first shaft member 10 is provided with an axial hole 11, which is distributed along the axial direction of the first shaft member 10, and is arranged through. The axial hole 11 passes through one axial end of the first shaft member 10, and an opening is formed at one axial end of the first shaft member 10, and the second shaft member 20 can be inserted into the axial hole 11 of the first shaft member 10 from the opening. Please refer to Figure 2The first shaft member 10 is provided with a radial hole 12. In the present device, the number of the radial holes 12 is set to be at least one. The radial holes 12 are distributed along the radial direction of the first shaft member 10. The radial holes 12 are directly connected to the axial hole 11. If the main body structure located outside the axial hole 11 in the first shaft member 10 is described as a cylinder, the radial holes 12 are arranged in the cylinder, and the radial holes 12 also penetrate the outer peripheral side of the cylinder. The radial holes 12 are set through both ends of the cylinder.

[0024] Please compare Figure 2 and Figure 3 The second shaft member 20 is movably disposed in the axial hole 11. Figure 3 The second shaft 20 is provided with a ball slot 21, which is located on the outer peripheral side of the second shaft 20. In the present device, there is at least one ball slot 21, and in a preferred embodiment, the number of the ball slots 21 is equal to the number of the radial holes 12. With respect to the ball slot 21, the ball slot height of the ball slot 21 is smaller than the ball slot radius, so that the ball 34 of the switching assembly can smoothly enter and exit the space range of the ball slot 21.

[0025] Please refer to Figure 2 The switching assembly includes a limiting portion 31, a clamping cap 32 and an elastic member 33. The limiting portion 31 is fixedly connected to the outer peripheral side of the first shaft member 10. The clamping cap 32 and the elastic member 33 are both movably sleeved on the outer peripheral side of the first shaft member 10. Two limiting portions 31 are provided opposite to each other, and the limiting function of the clamping cap 32 and the elastic member 33 is provided by the two opposite limiting portions 31. Specifically, the two limiting portions 31 are spaced apart along the axial direction of the first shaft member 10, and the clamping cap 32 and the elastic member 33 are sequentially arranged between the two limiting portions 31 along the axial direction of the first shaft member 10. When Figure 2 When the elastic member 33 is in a natural state, one end of the elastic member 33 abuts against one limiting portion 31 , and the other end of the elastic member 33 abuts against the pressing cap 32 , pressing the pressing cap 32 against the other limiting portion 31 .

[0026] Please refer to Figure 2 The clamping cap 32 is an annular structure, the annular direction of the clamping cap 32 is the same as the circumferential direction of the first shaft member 10, the clamping cap 32 has an inner peripheral side, and the clamping cap 32 is provided with a docking groove 321, and the docking groove 321 is located on the inner peripheral side of the clamping cap 32. In the present device, the position of the ball member 34 in the transmission clutch device is adjusted by the mutual cooperation of the docking groove 321, the radial hole 12 and the ball slot 21.

[0027] Please compare Figure 2 and Figure 3The switching assembly further includes a ball 34, and the number of the ball 34 is at least one. The number of the ball 34 should be selected according to the design requirements. Generally speaking, the number of the ball 34, the number of the radial holes 12, and the number of the ball slots 21 are corresponding and the same, and one ball 34 is installed in each radial hole 12. The ball 34 is movably installed in the radial hole 12, and the ball diameter of the ball 34, the hole diameter of the radial hole 12, and the diameter of the ball slot 21 should be equal. In fact, the assembly of the ball 34 in the radial hole 12 belongs to a clearance fit to ensure that the ball 34 can move along the radial hole 12.

[0028] In the present device, the ball 34 has a Figure 2 The engagement state shown and Figure 3 In the separation state shown, the ball member 34 is in the engagement state and fits against the wall of the ball slot 21, and is in the separation state and is partially accommodated in the docking groove 321 and is separated from the ball slot 21. The engagement state of the ball member 34 corresponds to the engagement state of the device, at which time the first shaft member 10 and the second shaft member 20 are in a state of transmission connection. The separation state of the ball member 34 corresponds to the separation state of the device, at which time the first shaft member 10 and the second shaft member 20 are in a state of separation. The switching between the engagement state and the separation state is achieved by adjusting the position of the ball member 34 in the transmission clutch device.

[0029] It should be noted that the above definition states that the ball 34 is movably mounted in the radial hole 12. Figure 2 and Figure 3 Part of the sphere of the ball component 34 is always located within the spatial range of the radial hole 12 , and the sphere in the ball component 34 that exceeds the radial hole 12 is located within the spatial range of the ball slot 21 or the spatial range of the docking groove 321 .

[0030] When no external force is applied to the clamping cap 32, please refer to Figure 2 The elastic member 33 presses the clamping cap 32 against the limiting portion 31. At this time, the docking groove 321 of the clamping cap 32 is offset from the radial hole 12. Part of the sphere of the ball member 34 is located within the space range of the ball slot 21 and the ball member 34 fits against the wall of the ball slot 21. The transmission connection between the first shaft member 10 and the second shaft member 20 is realized through the ball member 34. At this time, the transmission clutch device is in an engaged state.

[0031] When applying external force to the clamping cap 32, please refer to Figure 3 , so that the elastic member 33 is further compressed until the docking groove 321 of the clamping cap 32 is directly opposite to the radial hole 12, and part of the sphere of the ball member 34 enters into the docking groove 321 of the clamping cap 32, and part of the sphere of the ball member 34 leaves the spatial range of the ball groove 21, thereby releasing the transmission connection between the first shaft member 10 and the second shaft member 20. At this time, the transmission clutch device is in a separated state.

[0032] In the transmission system scheme using the transmission clutch device of the present application, the transmission system can be engaged and disengaged. The device utilizes the spherical surface of the ball member 34 and the spherical crown of the wall surface of the ball slot 21, so that the process of adjusting the first shaft member 10 and the second shaft member 20 to the engaged state is smooth and the engagement process is very stable. In addition, when the device is in the disengaged state, the ball member 34 will completely leave the spatial range of the ball slot 21, thereby solving the defect of incomplete separation of the transmission system, making the device have the advantage of high reliability.

[0033] In this device, the first shaft 10 and the second shaft 20 can be flexibly selected regarding the selection of the input shaft and the output shaft. The first shaft 10 can be selected as the input shaft and the second shaft 20 can be selected as the output shaft, or the first shaft 10 can be selected as the output shaft and the second shaft 20 can be selected as the input shaft.

[0034] In the present device, the first shaft member 10 and the second shaft member 20 can rotate clockwise or counterclockwise, respectively, thereby solving the defect of the unidirectional clutch function of the clutch device.

[0035] In addition, the transmission clutch device of the present application also has advantages in terms of structural complexity, manufacturing cost and operation. It has the characteristics of compact structure and simple structure, and its manufacturing cost is low. The switching between the engaged state and the disengaged state can be achieved by adjusting the clamping cap 32, thereby having the beneficial effect of convenient operation.

[0036] In the technical field of transmission clutch, the elastic member 33 is usually in the form of a spring. Figure 1 In other embodiments, the elastic member 33 may be in a form other than a spring, such as a cylindrical elastic structure made of an elastic material.

[0037] The ball member 34 is usually in the form of a steel ball; in other embodiments, the ball member 34 may be made of other materials such as ceramics.

[0038] Please refer to Figure 2 The two limiting portions 31 are respectively a first limiting portion 311 and a second limiting portion 312 . The first limiting portion 311 is located at one side of the clamping cap 32 , and the second limiting portion 312 is located at one side of the elastic member 33 .

[0039] In some embodiments, see Figure 1The first limiting portion 311 is provided with a slot 3111, and the clamping cap 32 is provided with a claw 322. When the ball member 34 is in an engaged state, that is, the device is in an engaged state, the claw 322 is inserted into the slot 3111. When the ball member 34 is in a separated state, that is, the device is in a separated state, the claw 322 is separated from the slot 3111, and the claw 322 is moved out of the slot 3111. In this method, the design of the claw 322 and the slot 3111 is adopted, so that the clamping cap 32 and the first shaft member 10 are kept consistent in circumferential rotation, avoiding the situation that the clamping cap 32 and the first shaft member 10 rotate relative to each other, so that the clamping cap 32 and the first shaft member 10 rotate synchronously, and improve the wear defect and abnormal noise defect caused by the scheme that the clamping cap 32 and the first shaft member 10 are not synchronized.

[0040] In some embodiments, please refer to Figure 1 and Figure 2 The first limiting portion 311 is in the form of a retaining ring, the annular direction of the retaining ring is the same as the circumferential direction of the first shaft member 10, and the clamping groove 3111 is distributed along the axial direction of the retaining ring.

[0041] In some embodiments, the first limiting portion 311 and the first shaft member 10 are integrally formed, which is beneficial to convenient processing and structural strength.

[0042] In some embodiments, see Figure 1 and Figure 2 The second limiting portion 312 is in the form of an end cover, which includes a connecting portion 3121 and a cover portion 3122 connected to the connecting portion 3121. The connecting portion 3121 is fixedly connected to the outer peripheral side of the first shaft member 10, and the cover portion 3122 is spaced from the outer peripheral side of the first shaft member 10 and encloses to form a limiting cavity, and the elastic member 33 is disposed in the limiting cavity. The design of using the end cover and forming the limiting cavity prevents the spring from being damaged during the assembly process.

[0043] In some embodiments, the connection portion 3121 of the end cap is connected to the first shaft member 10 by threads, and the end cap and the first shaft member 10 can also be disassembled. In addition to the threaded connection, the end cap and the first shaft member 10 can also be connected by interference fit.

[0044] In some embodiments, the number of ball pieces 34, radial holes 12 and ball slots 21 are the same and at least two, and the number is designed according to actual needs, and is generally set to more than 4. Each radial hole 12 is installed with a ball piece 34, all radial holes 12 are evenly spaced along the circumference of the first shaft member 10, and all ball slots 21 are evenly spaced along the circumference of the second shaft member 20. The scheme of evenly spaced circumferential arrangement is conducive to uniform force transmission between the first shaft member 10 and the second shaft member 20.

[0045] In some embodiments, the docking groove 321 is an annular groove, and the annular direction of the annular groove is the same as that of the clamping cap 32. The docking groove 321 adopts a design of a whole annular groove, rather than a design similar to the distribution scheme of the ball-segment groove 21, which is easy to process and simplifies the difficulty of the docking groove 321 facing the radial hole 12. In order to further reduce the difficulty of processing, the cross section of the annular groove can be designed as Figure 2 The trapezoid shown in .

[0046] In some embodiments, see Figure 1 The second shaft member 20 is provided with a wrench fitting portion 22, which is generally an outer hexagonal shape. The wrench fitting portion 22 is used in conjunction with a wrench. In actual applications, there is a need to fine-tune the second shaft member 20. Personnel can rotate the second shaft member 20 for a few weeks by holding a wrench, which greatly facilitates actual operations and improves work efficiency.

[0047] In some embodiments, see Figure 2 , Figure 2 The state in which one side of the wrench fitting portion 22 is in close contact with one axial end of the first shaft member 10 is shown. The axial end through which the axial hole 11 in the first shaft member 10 passes is set as the first end face. Figure 2 The state in which the wrench fitting part 22 is in close contact with the first end face is shown. The closest distance between the wrench fitting part 22 and the ball slot 21 can also be equal to the closest distance between the first end face and the ball slot 21. The closest distance between the wrench fitting part 22 and the ball slot 21 is limited to be equal to the spacing between the first end face and the radial hole 12. When the second shaft 20 moves until the wrench fitting part 22 is in close contact with the first shaft 10, it can be ensured that the center of the ball slot 21 and the center line of the radial hole 12 are both in the same plane, reducing the difficulty of operating the device.

[0048] The present application also discloses a vehicle which adopts the above-mentioned transmission clutch device to smoothly realize the engagement and disengagement of the transmission system, and has the beneficial effects of compact structure, convenient operation, easy use, smooth engagement, thorough disengagement and high reliability in terms of transmission clutch.

[0049] Although the preferred embodiments of the present invention have been described, those skilled in the art may make other changes and modifications to these embodiments once they have learned the basic creative concept. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the present invention.

[0050] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A transmission clutch device, characterized in that: include: A first shaft member is provided with an axial hole extending therethrough and at least one radial hole extending through the outer circumference and communicating with the axial hole; a second shaft member, movably disposed in the axial hole, the second shaft member being provided with at least one spherical groove located on the outer peripheral side, the spherical height of the spherical groove being smaller than the spherical radius; and The switching assembly includes a limiting portion, a clamping cap, an elastic member and a ball member, wherein two limiting portions are relatively arranged, and the limiting portions are both fixedly connected to the outer peripheral side of the first shaft member, and the clamping cap and the elastic member are both movably sleeved on the outer peripheral side of the first shaft member, and the clamping cap and the elastic member are sequentially arranged between the two limiting portions along the axial direction of the first shaft member, and the clamping cap is provided with a docking groove located on the inner peripheral side, and the ball member is movably installed in the radial hole, and the ball member has an engaged state in which it is fitted to the wall of the ball slot and a separated state in which it is partially accommodated in the docking groove and separated from the ball slot.

2. The transmission clutch device according to claim 1, characterized in that: The first limiting portion, which is one of the limiting portions, is located on one side of the clamping cap. The first limiting portion is provided with a slot, and the clamping cap is provided with a claw. When the ball piece is in the engaged state, the claw is inserted into the slot, and when the ball piece is in the separated state, the claw is separated from the slot.

3. The transmission clutch device according to claim 2, characterized in that: The first limiting portion is a retaining ring, the circumferential direction of the retaining ring is the same as the circumferential direction of the first shaft member, and the clamping groove is distributed along the axial direction of the retaining ring.

4. The transmission clutch device according to claim 1, characterized in that: The second limiting portion, which is one of the limiting portions, is located on one side of the elastic member, and the second limiting portion is an end cover, and the end cover includes a connecting portion and a cover portion connected to the connecting portion, and the connecting portion is fixedly connected to the outer peripheral side of the first shaft member, and the cover portion is spaced apart from and encloses the outer peripheral side of the first shaft member to form a limiting cavity, and the elastic member is inserted into the limiting cavity.

5. The transmission clutch device according to claim 4, characterized in that: The connecting portion is connected to the first shaft member via threads.

6. The transmission clutch device according to any one of claims 1 to 5, characterized in that: The number of the ball components, radial holes and ball slots is the same and at least two, one ball component is installed in each radial hole, all the radial holes are evenly spaced along the circumference of the first shaft component, and all the ball slots are evenly spaced along the circumference of the second shaft component.

7. The transmission clutch device according to claim 6, characterized in that: The docking groove is an annular groove, and the annular direction of the annular groove is the same as the annular direction of the clamping cap.

8. The transmission clutch device according to any one of claims 1 to 5, characterized in that: The second shaft member is provided with a wrench fitting portion, and the wrench fitting portion is used to cooperate with a wrench to realize the rotation of the second shaft member.

9. The transmission clutch device according to claim 8, characterized in that: The closest distance between the wrench fitting portion and the spherical groove is equal to the distance between the axial end through which the axial hole in the first shaft penetrates and the radial hole.

10. A vehicle, characterized in that: A transmission clutch device comprising any one of claims 1-9.

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