A coupling disc

Abstract

The application relates to the field of worm assemblies, in particular to a coupling disc which comprises a disc body, a worm connecting part and a driving connecting part are arranged on the disc body; the worm connecting part comprises a first connecting sleeve arranged on the disc body; the driving connecting part comprises a second connecting sleeve arranged on the disc body; the first connecting sleeve and the second connecting sleeve are coaxially distributed; the first connecting sleeve is connected with the second connecting sleeve through the disc body; the application discloses a coupling disc; the coupling disc can realize the connection between the driving part and the worm; meanwhile, the coupling disc can control the size of the transmission torque; when the transmission torque is large, the coupling disc is damaged, the power transmission is disconnected, and the influence caused by continuous transmission is avoided.

Description

Technical Field

[0001] This invention relates to the field of worm gear assemblies, specifically a connecting disc. Background Technology

[0002] Typically, most cars use electric power steering systems.

[0003] This electric power steering system is based on the ECU controller controlling the rotation of the EPS motor according to the changes in torque and angle signals collected from the sensors. The EPS motor drives the worm gear and worm reduction mechanism to provide the assistance required for vehicle steering, thereby improving the vehicle's steering performance.

[0004] In other words, the EPS steering system is used to improve the vehicle's stability by using a separate EPS motor to assist in steering.

[0005] In traditional structures, the EPS motor is directly connected to the drive worm gear and worm, for example, patent: 201811553994.4 - Axial adjustment device for electric four-way adjustable steering column.

[0006] While traditional connection methods can achieve smooth power transmission, the connection point is prone to abnormal noise due to the movement of the worm gear. At the same time, when the load is large, the motor is prone to burnout due to excessive load.

[0007] Therefore, in order to improve the above problems, it is necessary to optimize the connection method between the existing EPS motor and the worm gear. Summary of the Invention

[0008] The purpose of this invention is to provide a connecting disc that facilitates the connection between an EPS motor and a worm gear.

[0009] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0010] A connecting disc includes a disc body, wherein the disc body is provided with a worm gear connecting part and a drive connecting part;

[0011] The worm gear connection includes a first connecting sleeve disposed on the disk body; the first connecting sleeve is provided with a first spline groove.

[0012] The drive connection part includes a second connecting sleeve disposed on the disk body; the second connecting sleeve is provided with a second spline groove.

[0013] The first connecting sleeve and the second connecting sleeve are coaxially distributed; the first connecting sleeve is connected to the second connecting sleeve through a disc body.

[0014] The worm gear connection includes a bridging plate disposed on the disk body, and the first connecting sleeve is disposed on the bridging plate; the first connecting sleeve is connected to the disk body through the bridging plate.

[0015] The drive connection part includes a connecting plate disposed on the disk body, and the second connecting sleeve is connected to the disk body through the connecting plate. The bridging plate and the connecting plate are distributed at intervals.

[0016] The disc body includes an outer disc body and an inner disc body, the inner disc body and the outer disc body are coaxially distributed; the inner disc body and the outer disc body are connected by an outer plate body.

[0017] The disc body is provided with a clearance groove, and the second connecting sleeve is inserted into the clearance groove; the clearance groove is set on the inner disc body of the disc body.

[0018] The outer disc is provided with a material reduction groove.

[0019] The first connecting sleeve and the second connecting sleeve are fitted with clamps; the clamps include a clamping ring plate, and the clamping ring plate is provided with a material breaking groove, which is V-shaped.

[0020] The second connecting sleeve is connected to the connecting plate via a connecting ring plate.

[0021] The first connecting sleeve and the second connecting sleeve are provided with a plurality of elastic grooves; each elastic groove on the first connecting sleeve or the second connecting sleeve is evenly distributed in a ring.

[0022] The bridging plate is provided with force-sharing grooves; each force-sharing groove is connected to at least one elastic groove on the first connecting sleeve.

[0023] The advantages of this invention are:

[0024] This invention discloses a connecting disc, which enables the connection between the drive unit and the worm gear. Simultaneously, the connecting disc can control the magnitude of the transmission torque. When the transmission torque is too large, the connecting disc itself breaks, disconnecting the power transmission and avoiding the impact of continuous transmission. Furthermore, the connecting disc facilitates the connection between the worm gear and the drive unit, while also allowing the worm gear and drive unit to have a certain axial movement capability, preventing motion interference between the worm gear and the drive unit during subsequent operation. Attached Figure Description

[0025] The following is a brief explanation of the contents of each of the accompanying drawings and the markings in the drawings:

[0026] Figure 1 This is a structural schematic diagram from a first perspective of the present invention.

[0027] Figure 2This is a structural schematic diagram from a second perspective of the present invention.

[0028] Figure 3 This is a structural schematic diagram from a third perspective of the present invention.

[0029] Figure 4 This is a structural schematic diagram from the fourth perspective of the present invention.

[0030] Figure 5 This is a schematic diagram of the structure of the present invention from a first-view perspective after the clamp is installed.

[0031] Figure 6 This is a schematic diagram of the structure of the present invention from a second perspective after the clamp is installed.

[0032] Figure 7 This is a schematic diagram of the clamp structure in this invention.

[0033] The markings in the above figures are all:

[0034] 1. Connecting plate; 11. First connecting sleeve; 12. Second connecting sleeve; 13. Plate body; 14. Bridging plate body; 15. Connecting plate; 16. Connecting ring plate; 17. Clearance trough; 18. Clamp. Detailed Implementation

[0035] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings and the description of the preferred embodiments.

[0036] A connecting disc 1 includes a disc body 13, on which a worm gear connecting part and a drive connecting part are provided; the present invention discloses a connecting disc 1, which can realize the connection between the drive part and the worm gear.

[0037] The connecting disk 1 disclosed in this invention mainly serves as a bridge, facilitating the connection between the drive motor and the worm gear; at the same time, the connecting disk 1 also serves as a transmission function, facilitating the transmission of the driving force of the drive motor to the worm gear.

[0038] The connecting disk 1 disclosed in this invention mainly includes a disk body 13, which is a cylindrical structure and serves as the main structure of the connecting disk 1. In addition, the disk body 13 is provided with a worm gear connecting part and a drive connecting part. The worm gear connecting part facilitates the connection between the connecting disk 1 and the worm. Furthermore, the drive connecting part facilitates the connection between the connecting disk 1 and the drive part.

[0039] Specifically, the worm gear connecting part in this invention includes a first connecting sleeve 11 disposed on the disk body 13; the first connecting sleeve 11 is a sleeve structure, and a first spline groove 111 is provided in the first connecting sleeve 11; a spline is provided at the end of the worm gear to cooperate with the first spline groove 111 in the first connecting sleeve 11. This design facilitates the connection between the worm gear and the connecting disk 1. In addition, the drive connecting part in this invention includes a second connecting sleeve 12 disposed on the disk body 13; a second spline groove 121 is provided in the second connecting sleeve 12; a spline is also provided on the output shaft of the drive motor. This design facilitates the connection between the drive motor and the connecting disk 1.

[0040] Furthermore, in this invention, the first connecting sleeve 11 and the second connecting sleeve 12 are coaxially distributed; the first connecting sleeve 11 is connected to the second connecting sleeve 12 through the disc body 13; the coaxial arrangement of the first connecting sleeve 11 and the second connecting sleeve 12 in this invention ensures normal power transmission. In addition, in this invention, the first connecting sleeve 11 and the second connecting sleeve 12 are not directly connected, but are connected through the disc body 13. This connection method not only ensures normal power transmission, but also controls the load-bearing capacity of the disc body 13, that is, controls the force on the disc body 13, the first connecting sleeve 11, and the second connecting sleeve 12. When the transmission torque is large, the connecting disc 1 breaks, thereby disconnecting the power transmission and playing a good protective role; ensuring the service life of the worm gear.

[0041] Furthermore, the worm gear connection portion in this invention includes a bridging plate 14 disposed on the disc body 13. The bridging plate 14 facilitates the connection of the first connecting sleeve 11 to the disc body 13. In addition, the bridging plate 14 is arranged on one end face of the disc body 13, and the first connecting sleeve 11 is disposed on the bridging plate 14. The first connecting sleeve 11 is connected to the disc body 13 through the bridging plate 14. The first connecting sleeve 11 is perpendicular to the bridging plate 14, which helps to ensure the coaxiality of the disc body 13 and the first connecting sleeve 11.

[0042] Furthermore, the drive connection part in this invention includes a connecting plate 15 disposed on the disk body 13. The connection plate 15 facilitates the communication between the second connecting sleeve 12 and the inner wall of the disk body 13. In addition, in this invention, the second connecting sleeve 12 is connected to the disk body 13 through the connecting plate 15. The connection plate 15 plays a good bridging role, which facilitates the installation and arrangement of the second connecting sleeve 12 on the disk body 13. At the same time, the connection plate 15 ensures the coaxial arrangement of the second connecting sleeve 12 and the disk body 13.

[0043] Furthermore, in this invention, the bridging plate 14 and the connecting plate 15 are spaced apart. Based on this arrangement, it can be understood that the first connecting sleeve 11 and the second connecting sleeve 12 are not directly connected. Thus, during subsequent power transmission, the first connecting sleeve 11 and the second connecting sleeve 12 do not directly transmit power, but instead transmit power through the disc 13. By designing the load or torque that the disc 13, the first connecting sleeve 11, and the second connecting sleeve 12 themselves or their connection points can withstand, the connecting disc 1 can be damaged if the torque is too large, thereby disconnecting the power transmission.

[0044] Furthermore, in this invention, the disc 13 includes an outer disc 131 and an inner disc 132. The outer disc 131 and the inner disc 132 are connected and arranged coaxially. In actual arrangement, the outer disc 131 and the inner disc 132 are spaced apart. This arrangement can reduce the strength of the disc 13, facilitate the normal use of the subsequent connecting disc 1, and achieve disconnection during power use. In specific implementation, the outer disc 131 and the inner disc 132 are coaxially spaced apart, with the inner disc 132 located inside the outer disc 131. To ensure the connection between the inner disc 132 and the outer disc 131, this invention requires that the inner disc 132 and the outer disc 131 be connected through an outer plate 133. The outer plate 133 plays a good bridging role, ensuring the integrity of the inner disc 132 and the outer disc 131.

[0045] Furthermore, in this invention, the disc body 13 is provided with an avoidance groove 17, and the second connecting sleeve 12 is inserted into the avoidance groove 17; the avoidance groove 17 is provided on the inner disc body 132 of the disc body 13; in this invention, the avoidance groove 17 forms a groove structure on the disc body 13. In actual arrangement, the end of the second connecting sleeve 12 is essentially inserted into the avoidance groove 17, reducing or avoiding the second connecting sleeve 12 being exposed outside the disc body 13, and reducing the lateral space occupied by the connecting disc 1.

[0046] Furthermore, the outer disc 131 described in this invention is provided with a material reduction groove 13-1; the material reduction groove 13-1 plays a good role in reducing weight, while reducing the production cost of the connecting plate. More importantly, it plays a good role in reducing the structural strength of the disc 13 in the future, making it easier to disconnect the disc 13 and transmit power if it breaks.

[0047] Furthermore, in this invention, clamps 18 are fitted onto the first connecting sleeve 11 and the second connecting sleeve 12. The clamps 18 facilitate the restraint of the first connecting sleeve 11 and the second connecting sleeve 12, thereby ensuring the stability of the connection between the first connecting sleeve 11 and the worm gear, and between the drive unit and the second connecting sleeve 12. Additionally, this invention requires that the clamp 18 include a snap-fit ​​ring plate 181, on which a material-cutting groove 182 is provided. The material-cutting groove 182 in this invention gives the clamp 18 a large deformation capacity, facilitating subsequent restraint on the outside of the first connecting sleeve 11 or the second connecting sleeve 12 as needed; it also facilitates the arrangement and placement of the clamp 18. Furthermore, in this invention, the material-cutting groove 182 is V-shaped. This design gives the snap-fit ​​ring plate 181 a self-limiting capability, thereby preventing the ends of the snap-fit ​​ring plate 181 around the material-cutting groove 182 from shifting.

[0048] Furthermore, in this invention, the second connecting sleeve 12 is connected to the connecting plate 15 via a connecting ring plate 16. In this invention, the connecting ring plate 16 plays a good bridging role. In actual connection, the second connecting sleeve 12 is connected to the connecting plate 15 via the connecting ring plate 16. The outer diameter of the connecting ring plate 16 is larger than the outer diameter of the second connecting sleeve 12. This arrangement makes the connecting ring plate 16 and the second connecting sleeve 12 form a stepped structure, which facilitates the positioning during subsequent clamp arrangement and also greatly increases the strength of the connection between the second connecting sleeve 12 and the connecting plate 15.

[0049] Furthermore, in this invention, the first connecting sleeve 11 and the second connecting sleeve 12 are provided with a plurality of elastic grooves 1-2; each elastic groove 1-2 on the first connecting sleeve 11 or the second connecting sleeve 12 is evenly distributed in a ring; the setting of the elastic grooves 1-2 enables the first connecting sleeve 11 and the second connecting sleeve 12 to have a certain deformation capability, which facilitates the subsequent installation and fixing of the clamp 18.

[0050] Furthermore, the bridging plate 14 in this invention is provided with force-sharing grooves 141; each force-sharing groove 141 is connected to at least one elastic groove 1-2 on the first connecting sleeve 11; the provision of force-sharing grooves 141 enables the bridging plate 14 to have a certain deformation capability; and facilitates the insertion of the worm gear into the first connecting sleeve 11.

[0051] In practice:

[0052] The worm gear is connected to the disc body 13 via the first connecting sleeve 11, and the drive motor in the drive unit is connected to the second connecting sleeve 12 via the output shaft. In use, the drive motor drives the second connecting sleeve 12 to rotate, the second connecting sleeve 12 drives the disc body 13 to rotate, the disc body 13 drives the first connecting sleeve 11 to rotate, and the first connecting sleeve 11 drives the worm gear to rotate.

[0053] Obviously, the specific implementation of this invention is not limited to the above-described methods. Any non-substantial improvements made using the inventive concept and technical solution of this invention are within the protection scope of this invention.

Claims

1. A connecting disk, characterized in that, Includes a disc body, on which a worm gear connection part and a drive connection part are provided; The worm gear connection includes a first connecting sleeve disposed on the disk body; the first connecting sleeve is provided with a first spline groove. The drive connection part includes a second connecting sleeve disposed on the disk body; the second connecting sleeve is provided with a second spline groove. The first connecting sleeve and the second connecting sleeve are coaxially distributed; the first connecting sleeve is connected to the second connecting sleeve through a disc body; The worm gear connection includes a bridge plate body disposed on the disk body, and the first connecting sleeve is disposed on the bridge plate body; the first connecting sleeve is connected to the disk body through the bridge plate body. The drive connection part includes a connecting plate disposed on the disk body, and the second connecting sleeve is connected to the disk body through the connecting plate. The bridge plate body and the connecting plate are distributed at intervals. The disk body includes an outer disk body and an inner disk body, the inner disk body and the outer disk body are coaxially distributed; the inner disk body and the outer disk body are connected by an outer plate body; By controlling the force on the disc body, the first connecting sleeve, and the second connecting sleeve; By designing the load or torque that the disk body, the first connecting sleeve, and the second connecting sleeve themselves or their connection points can withstand; When the transmission torque is large, the connecting disc can break, thereby disconnecting the power transmission.

2. A connecting disk according to claim 1, characterized in that, The disc body is provided with a clearance groove, and the second connecting sleeve is inserted into the clearance groove; the clearance groove is set on the inner disc body of the disc body.

3. A connecting disk according to claim 1, characterized in that, The outer disc is provided with a material reduction groove.

4. A connecting disk according to claim 1, characterized in that, The first connecting sleeve and the second connecting sleeve are fitted with clamps; the clamps include a clamping ring plate, and the clamping ring plate is provided with a material breaking groove, which is V-shaped.

5. A connecting disk according to claim 1, characterized in that, The second connecting sleeve is connected to the connecting plate via a connecting ring plate.

6. A connecting disk according to claim 1, characterized in that, The first connecting sleeve and the second connecting sleeve are provided with a plurality of elastic grooves; each elastic groove on the first connecting sleeve or the second connecting sleeve is evenly distributed in a ring.

7. A connecting disk according to claim 6, characterized in that, The bridging plate is provided with force-sharing grooves; each force-sharing groove is connected to at least one elastic groove on the first connecting sleeve.

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