Coupling

Abstract

The coupler is applied to the field of mechanical transmission and comprises a mounting base, a driving shaft penetrates through and is rotationally connected to the mounting base, the mounting base is sleeved with a connecting sleeve matched with the mounting base, a mounting bolt penetrates through the connecting sleeve and is in threaded connection with the mounting base, and the inner edge of the connecting sleeve is connected with a mounting plate; the driven shaft penetrates through and is rotationally connected to the mounting plate, the driving shaft is connected with the driven shaft through the connecting assembly, and the mounting bolt is perpendicular to the driving shaft. The connecting assembly has the technical effects that when the driving shaft and the driven shaft need to be connected through the connecting assembly, an operator connects the connecting sleeve provided with the driven shaft with the mounting base, and the mounting bolt penetrates through the connecting sleeve and then is in threaded connection with the mounting base; the radial installation space occupied by a flange face in a related coupler is saved, the requirement for the compact internal space of an automobile is met, and the internal space utilization rate and installation efficiency of the automobile are improved.

Description

Technical Field

[0001] The present application relates to the technical field of mechanical transmission, and in particular to a coupling. Background Art

[0002] A coupling, also known as a coupling, is a mechanical component used to firmly connect the driving shaft and the driven shaft in different mechanisms for coaxial rotation and to transmit motion and torque.

[0003] Announcement No. CN220668191U discloses a diaphragm coupling, including a connecting half-shaft, a diaphragm assembly, an intermediate half-shaft, a crimping half-shaft and a pressure plate arranged in sequence along the front-to-back direction; a first friction plate is arranged between the crimping half-shaft and the intermediate half-shaft, a second friction plate is arranged between the crimping half-shaft and the pressure plate, a first locking structure is used to form abutment locking between the intermediate half-shaft and the connecting half-shaft, and the abutment locking intermediate half-shaft and the connecting half-shaft press and clamp the diaphragm assembly; the intermediate half-shaft and the pressure plate are connected and abutted and locked by a second locking structure, and the abutment locking intermediate half-shaft and the pressure plate cause the first friction plate and the second friction plate to press and clamp the intermediate half-shaft.

[0004] The above-mentioned diaphragm coupling has a complex structure and requires axial locking of fasteners on the flange surfaces of the crimped half-shaft and the intermediate half-shaft to achieve the connection of the components. The flange surfaces need to occupy a large radial space. The connection method of the diaphragm and fasteners is difficult to cope with the compact space structure inside the car in actual practice, resulting in low installation efficiency. Summary of the invention

[0005] In order to help solve the problem that during the installation and connection process of the relevant diaphragm coupling, the flange surface for connecting the various components needs to occupy a large radial space, which makes it difficult to cope with the compact space structure inside the automobile, resulting in low installation efficiency, the present application provides a coupling, which adopts the following technical solution: it includes a mounting seat, a driving shaft is passed through and rotatably connected to the mounting seat, the mounting seat is provided with a connecting sleeve matching the mounting seat, the connecting sleeve is passed through a mounting bolt, the mounting bolt is threadedly connected to the mounting seat, the inner edge of the connecting sleeve is connected to a mounting plate, the driven shaft is passed through and rotatably connected to the mounting plate, the driving shaft is connected to the driven shaft through a connecting assembly, and the mounting bolt and the driving shaft are perpendicular to each other.

[0006] Through the above technical solution, when the driving shaft and the driven shaft need to be connected, the operator connects the connecting sleeve on which the driven shaft is installed with the mounting seat, passes the mounting bolts through the connecting sleeve and then connects them with the mounting seat through threads. Since the mounting bolts and the driving shaft are arranged perpendicular to each other, the radial installation space occupied by the flange surface in the related coupling is saved, the demand for compact interior space of the vehicle is met, and the space utilization and installation efficiency inside the vehicle are improved.

[0007] In a specific possible implementation manner, the number of the mounting bolts is three and they are evenly arranged in an array along the outer edge of the connecting sleeve.

[0008] Through the above technical solution, the three mounting bolts are evenly distributed along the outer edge of the connecting sleeve, which can ensure that the force at the connection between the connecting sleeve and the mounting seat is more even, reduce the local stress concentration caused by uneven force, and thus improve the reliability and stability of the connection.

[0009] In a specific implementation scheme, the outer edge of the mounting seat is provided with a mounting groove matching the connecting sleeve, the connecting sleeve is partially inserted into the mounting groove, and one end of the mounting bolt facing the mounting groove is threadedly connected in the mounting groove.

[0010] Through the above technical solution, the connecting sleeve is partially inserted into the installation groove, and the installation groove supports the connecting sleeve, thereby improving the stability of the connecting sleeve inserted on the mounting seat, reducing the axial space occupied by the mounting seat and the connecting sleeve when connected, and improving space utilization.

[0011] In a specific possible implementation manner, a countersunk groove is provided at the outer edge of the connecting sleeve, and the end of the mounting bolt is entirely located in the countersunk groove.

[0012] Through the above technical solution, the design of the countersunk groove allows the head of the mounting bolt to be completely embedded therein, flush with or slightly lower than the surface of the connecting sleeve, reducing the protruding part of the end of the mounting bolt, reducing the possibility of interference between the mounting bolt and the external structure, and at the same time further reducing the radial space occupied by the coupling, thereby improving space utilization.

[0013] In a specific possible implementation scheme, the connection assembly includes a coupling body fixedly sleeved on the driving shaft, the coupling body is provided with two elastic members, and one end of the driven shaft facing the driving shaft is pressed tightly between the two elastic members.

[0014] Through the above technical solution, the driving shaft and the driven shaft are connected through the coupling body, so that the driving shaft and the driven shaft can rotate together and transmit torque at the same time, and compensate for the deviation between the driving shaft and the driven shaft caused by inaccurate manufacturing and installation, deformation during operation or thermal expansion. The driven shaft is pressed between the two elastic parts, and the elastic parts have good buffering and shock absorbing effects, which can absorb and reduce vibration and load during movement and reduce noise during operation.

[0015] In a specific possible implementation scheme, the elastic member includes two elastic columns, an elastic block is provided between the two elastic columns, the elastic block and the two elastic columns are connected to the coupling body, and one end of the driven shaft facing the driving shaft is pressed between the four elastic columns and the two elastic blocks.

[0016] Through the above technical solution, one end of the driven shaft facing the driving shaft is between the four elastic columns and the two elastic blocks, thereby limiting the radial movement of the driven shaft, improving the stability of the driven shaft during operation, and reducing noise during operation.

[0017] In a specific implementation scheme, the coupling body has an end facing the driven shaft with a placement groove matching the elastic member, the elastic member is partially inserted in the placement groove and the elastic member is pressed tightly between the bottom of the placement groove and the driven shaft.

[0018] Through the above technical solution, the placement groove limits the position of the elastic member, improves the stability of the elastic member placed in the coupling body, and at the same time realizes the separate assembly of the elastomer and the coupling body, which is more flexible.

[0019] In a specific possible implementation manner, the elastic member is made of rubber material.

[0020] Through the above technical solution, the rubber material has excellent elasticity and can absorb and reduce shock, so that the elastic parts made of rubber material can maintain stable performance under impact and vibration environments, while reducing noise during movement.

[0021] In a specific possible implementation manner, an annular chamfer is formed at one end of the coupling body away from the driven shaft.

[0022] Through the above technical solution, the annular chamfer plays an avoidance and guiding role, reducing the possibility of interference between the coupling body and the mounting bolts in a compact space, and at the same time making it easier to connect the coupling body to the driving shaft.

[0023] In a specific implementation scheme, a connecting hole is opened on the mounting plate, a bearing matching the connecting hole is arranged in the connecting hole, the outer ring of the bearing is fixedly arranged on the hole wall of the connecting hole, and the inner ring of the bearing is fixedly sleeved on the outer edge of the driven shaft.

[0024] Through the above technical solution, the inner ring of the bearing is fixedly sleeved on the outer edge of the driven shaft, and the outer ring of the bearing is fixedly set on the hole wall of the connecting hole, which provides stable support and positioning for the driven shaft, improves the stability and accuracy of the driven shaft during rotation, and the bearing can withstand the radial load and axial load transmitted by the driven shaft, reduces the vibration and noise caused by the axis deviation, and reduces the friction and wear of the driven shaft during operation.

[0025] To sum up, the present application has at least the following beneficial technical effects: when the driving shaft and the driven shaft need to be connected, the operator connects the connecting sleeve on which the driven shaft is installed with the mounting seat, passes the mounting bolt through the connecting sleeve and threadedly connects it with the mounting seat; since the mounting bolt and the driving shaft are arranged perpendicular to each other, the radial installation space occupied by the flange surface in the related coupling is saved, the requirement of compact interior space of the vehicle is met, and the space utilization and installation efficiency inside the vehicle are improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0027] Figure 2 It is a schematic diagram of the structure of the elastomer in the embodiment of the present application.

[0028] Figure 3 It is a cross-sectional schematic diagram used to illustrate the bearing in the embodiment of the present application.

[0029] Figure numerals: 1. mounting seat; 2. driving shaft; 3. connecting sleeve; 4. mounting bolt; 5. mounting plate; 6. driven shaft; 7. mounting groove; 8. countersunk groove; 9. coupling body; 10. elastic column; 11. elastic block; 12. placement groove; 13. annular chamfer; 14. bearing; 15. connecting hole. DETAILED DESCRIPTION

[0030] The following is combined with Figure 1-3 This application is described in further detail.

[0031] The embodiment of the present application discloses a coupling.

[0032] Reference Figure 1 and Figure 2 The coupling includes a mounting seat 1, and a driving shaft 2 is passed through and rotatably connected to the mounting seat 1. In the embodiment of the present application, the mounting seat 1 can be set on the housing of the driving motor, and the driving shaft 2 can be the output shaft of the driving motor. The mounting seat 1 is provided with a connecting sleeve 3 that matches the size of the mounting seat 1, and the connecting sleeve 3 is passed through with a mounting bolt 4, and the mounting bolt 4 is threadedly connected to the mounting seat 1. The number of the mounting bolts 4 is three and they are evenly arranged in an array along the outer edge of the connecting sleeve 3. Therefore, the three mounting bolts 4 are evenly distributed along the outer edge of the connecting sleeve 3, which can ensure that the connection between the connecting sleeve 3 and the mounting seat 1 is more evenly stressed, reduce the local stress concentration phenomenon caused by uneven stress, and thus improve the reliability and stability of the connection.

[0033] Reference Figure 2 and Figure 3The outer edge of the mounting seat 1 is provided with a mounting groove 7 that matches the size of the connecting sleeve 3. The connecting sleeve 3 is partially inserted into the mounting groove 7, and one end of the three mounting bolts 4 facing the mounting groove 7 is respectively threadedly connected in the mounting groove 7. The outer edge of the connecting sleeve 3 is provided with a countersunk groove 8, and the end of the mounting bolt 4 is located in the countersunk groove 8 as a whole. The design of the countersunk groove 8 allows the head of the mounting bolt 4 to be completely embedded therein, flush with the surface of the connecting sleeve 3 or slightly lower than the surface, reducing the protruding part of the end of the mounting bolt 4, reducing the possibility of interference between the mounting bolt 4 and the external structure, and further reducing the radial space occupied by the coupling, thereby improving the space utilization rate when the coupling is installed inside the car. In the embodiment of the present application, the mounting bolt 4 can be a hexagon socket countersunk screw. The volume of the hexagon socket countersunk screw is relatively small, which can save installation space. The hexagon socket countersunk screw is easy to install and disassemble in a narrow space.

[0034] Therefore, the connecting sleeve 3 is partially inserted into the mounting groove 7, and the mounting groove 7 supports the connecting sleeve 3, thereby improving the stability of the connecting sleeve 3 inserted into the mounting seat 1, reducing the axial space occupied by the mounting seat 1 and the connecting sleeve 3 when they are connected, and improving space utilization.

[0035] Reference Figure 2 and Figure 3 , the inner edge of the connecting sleeve 3 is fixedly connected with the mounting plate 5, the driven shaft 6 is passed through and rotatably connected to the mounting plate 5, the driving shaft 2 is coaxially connected to the driven shaft 6 through the connecting assembly, and the mounting bolt 4 is perpendicular to the driving shaft 2, and the mounting plate 5 is provided with a connecting hole 15, and a bearing 14 matching the connecting hole 15 is arranged in the connecting hole 15, the outer ring of the bearing 14 is fixedly set on the hole wall of the connecting hole 15, and the inner ring of the bearing 14 is fixedly sleeved on the outer edge of the driven shaft 6. Therefore, the inner ring of the bearing 14 is fixedly sleeved on the outer edge of the driven shaft 6, and the outer ring of the bearing 14 is fixedly set on the hole wall of the connecting hole 15, which provides stable support and positioning for the driven shaft 6, improves the stability and accuracy of the driven shaft 6 during the rotation process, and the bearing 14 can withstand the radial load and axial load transmitted by the driven shaft 6, reduces the vibration and noise caused by the axis deviation, and reduces the friction and wear of the driven shaft 6 during the operation.

[0036] Reference Figure 2 and Figure 3 The connecting assembly includes a coupling body 9 fixedly mounted on the driving shaft 2. An annular chamfer 13 is provided at one end of the coupling body 9 away from the driven shaft 6. The annular chamfer 13 plays an avoidance and guiding role, reducing the possibility of interference between the coupling body 9 and the mounting bolt 4 in a compact space, and at the same time facilitating the connection of the coupling body 9 with the driving shaft 2.

[0037] Reference Figure 2 and Figure 3Two elastic members are arranged on the coupling body 9, and one end of the driven shaft 6 facing the driving shaft 2 is pressed against the two elastic members. In the embodiment of the present application, there is an assembly interference of 0.5 mm between the outer edge of the driven shaft 6 and the two elastic bodies, so as to limit the radial fluctuation of the driven shaft 6. The elastic member can be made of rubber material or elastic plastic. In the embodiment of the present application, it is made of rubber material. The rubber material has excellent elasticity and can absorb and reduce shock, so that the elastic member made of rubber material can maintain stable performance under impact and vibration environment, and reduce noise during movement.

[0038] Reference Figure 2 and Figure 3 The elastic member includes two elastic columns 10. In the embodiment of the present application, the four elastic columns 10 extend beyond the coupling body 9 by about 0.5 mm. An arc-shaped elastic block 11 is fixedly connected between the bottoms of the two elastic columns 10. The elastic member and the coupling body 9 can be integrally formed by injection molding, so that the elastic block 11 and the two elastic columns 10 are connected to the coupling body 9. The end of the driven shaft 6 facing the driving shaft 2 is pressed between the four elastic columns 10 and the two elastic blocks 11, thereby limiting the radial movement of the driven shaft 6, improving the stability of the driven shaft 6 during operation, and reducing the noise during operation. The elastic block 11 is compressed by the driven shaft 6, and the compression amount can be about 0.5 mm. The mounting bolt 4 is subjected to a certain radial force, which can limit the axial fluctuation of the driven shaft 6. It should be noted that the elastic body made of different materials has a different compression range of the elastic body under stress and deformation.

[0039] Reference Figure 2 and Figure 3 The elastic member and the coupling body 9 can also be installed in a split manner. The coupling body 9 and the elastic member are separately processed and assembled. The coupling body 9 is provided with a placement groove 12 that matches the size of the elastic member at one end facing the driven shaft 6. The elastic member is partially inserted into the placement groove 12 and the elastic member is pressed tightly between the bottom of the placement groove 12 and the driven shaft 6. Therefore, the placement groove 12 limits the position of the elastic member, improves the stability of the elastic member placed in the coupling body 9, and realizes the separate assembly of the elastic member and the coupling body 9, which is more flexible.

[0040] The implementation principle of the embodiment of the present application is: when it is necessary to connect the driving shaft 2 and the driven shaft 6, the operator fixes the coupling body 9 on the driving shaft 2, inserts the connecting sleeve 3 with the driven shaft 6 installed on the mounting seat 1, and the mounting bolt 4 passes through the connecting sleeve 3 and is threadedly connected with the mounting seat 1. Since the mounting bolt 4 and the driving shaft 2 are arranged perpendicular to each other, the radial installation space occupied by the flange surface in the related coupling is saved, the demand for compact interior space of the car is met, and the space utilization and installation efficiency inside the car are improved.

[0041] In addition, since the driving shaft 2 and the driven shaft 6 are connected by the coupling body 9, the driving shaft 2 and the driven shaft 6 can rotate together and transmit torque at the same time, and the deviation between the driving shaft 2 and the driven shaft 6 caused by inaccurate manufacturing and installation, deformation during operation or thermal expansion, etc. is compensated. The driven shaft 6 is pressed between two elastic parts. The elastic parts have good buffering and shock absorbing effects, can absorb and reduce vibrations and loads during movement, reduce noise during operation, and solve the abnormal noise problem existing in the operation of related diaphragm couplings.

[0042] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed. However, as long as they are within the scope of the claims of the present invention, they are protected by the patent law.

Claims

1. A coupling, characterized in that: The invention comprises a mounting seat (1), a driving shaft (2) passing through and rotatably connected to the mounting seat (1), a connecting sleeve (3) matching the mounting seat (1) being sleeved on the mounting seat (1), a mounting bolt (4) passing through the connecting sleeve (3), the mounting bolt (4) being threadedly connected to the mounting seat (1), a mounting plate (5) being connected to the inner edge of the connecting sleeve (3), a driven shaft (6) passing through and rotatably connected to the mounting plate (5), the driving shaft (2) being connected to the driven shaft (6) via a connecting assembly, and the mounting bolt (4) and the driving shaft (2) being perpendicular to each other.

2. The coupling according to claim 1, characterized in that: The number of the mounting bolts (4) is three and they are evenly arranged in an array along the outer edge of the connecting sleeve (3).

3. The coupling according to claim 1, characterized in that: The outer edge of the mounting seat (1) is provided with a mounting groove (7) matching the connecting sleeve (3); the connecting sleeve (3) is partially inserted into the mounting groove (7); and one end of the mounting bolt (4) facing the mounting groove (7) is threadedly connected in the mounting groove (7).

4. The coupling according to claim 1, characterized in that: The outer edge of the connecting sleeve (3) is provided with a countersunk groove (8), and the end of the mounting bolt (4) is entirely located in the countersunk groove (8).

5. The coupling according to claim 1, characterized in that: The connection assembly comprises a coupling body (9) fixedly sleeved on the driving shaft (2), the coupling body (9) being provided with two elastic members, and one end of the driven shaft (6) facing the driving shaft (2) is pressed tightly between the two elastic members.

6. The coupling according to claim 5, characterized in that: The elastic member comprises two elastic columns (10), an elastic block (11) is arranged between the two elastic columns (10), the elastic block (11) and the two elastic columns (10) are connected to the coupling body (9), and one end of the driven shaft (6) facing the driving shaft (2) is pressed tightly between the four elastic columns (10) and the two elastic blocks (11).

7. The coupling according to claim 5, characterized in that: The coupling body (9) is provided with a placement groove (12) matching the elastic member at one end facing the driven shaft (6); the elastic member is partially inserted into the placement groove (12) and the elastic member is pressed tightly between the bottom of the placement groove (12) and the driven shaft (6).

8. The coupling according to claim 5, characterized in that: The elastic member is made of rubber material.

9. The coupling according to claim 5, characterized in that: An annular chamfer (13) is provided on one end of the coupling body (9) which is away from the driven shaft (6).

10. The coupling according to claim 1, characterized in that: The mounting plate (5) is provided with a connecting hole (15), a bearing (14) matching the connecting hole (15) is provided in the connecting hole (15), an outer ring of the bearing (14) is fixedly arranged on the hole wall of the connecting hole (15), and an inner ring of the bearing (14) is fixedly sleeved on the outer edge of the driven shaft (6).

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