Fork torque dispersion structure
By setting internal spline through holes and reinforcement plates in the main body and head of the fork, the stress concentration problem at the fork connection is solved, and torque dispersion and torque resistance are improved.
Patent Information
- Application Number
- CN202422247539.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-13
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-09-13
AI Technical Summary
The connection between the fork head and the fork main body is prone to stress concentration when transmitting torque, resulting in damage.
A fork torque dispersing structure is designed, by providing a through hole of inner spline in the fork main body part and the fork head, and strengthening the plate in the intermediate position, torque is transmitted using the inner spline to disperse stress, and a third through hole is provided in the fork main body part to facilitate the fixing of the transmission shaft.
It effectively disperses the stress concentration at the connection between the fork head and the fork main body, improves the torsion resistance of the fork head and extends the service life.
Smart Images
Figure CN223152585U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of knuckle forks, and particularly relates to a torque dispersion structure of a knuckle fork. Background Art
[0002] A knuckle fork, especially the universal joint fork on the drive shaft of an automobile chassis, has a relatively complex and crucial structure, which has an important impact on the performance and service life of the automobile. The universal joint fork is located at the end of the transmission and is matched with the shaft at the end of the drive shaft. Its main function is to transmit torque and adjust the length and positional relationship of the drive shaft.
[0003] The connection between the head of the knuckle fork and the main body of the knuckle fork is most prone to stress concentration during torque transmission, resulting in easy damage at this part when transmitting large torque. Summary of the Utility Model
[0004] The utility model provides a torque dispersion structure of a knuckle fork to solve the above technical deficiencies, which can disperse the torque and reduce the stress concentration at the connection between the head of the knuckle fork and the main body of the knuckle fork.
[0005] The utility model discloses a torque dispersion structure of a knuckle fork, which includes a main body of the knuckle fork and a head of the knuckle fork integrally in a U shape. The main body of the knuckle fork extends along a first direction and is connected to the head of the knuckle fork. A first through hole is arranged on the main body of the knuckle fork, and the first through hole penetrates the main body of the knuckle fork along the first direction. A reinforcing plate is arranged at the middle position of the head of the knuckle fork. The reinforcing plate is perpendicular to the axis of the first through hole. A second through hole coaxial with the first through hole is arranged on the reinforcing plate. Internal splines are arranged on the inner walls of the first through hole and the second through hole. The diameter of the first through hole and the distribution of the internal splines thereon are the same as the diameter of the second through hole and the distribution of the internal splines thereon.
[0006] During use, external splines are arranged on the drive shaft. The drive shaft is inserted into the first through hole and the second through hole, and the external splines on the drive shaft are matched with the internal splines on the first through hole and the second through hole. When transmitting torque, the torque is transmitted simultaneously through the internal splines on the first through hole and the second through hole, thereby dispersing the torque, reducing the stress concentration at the connection between the head of the knuckle fork and the main body of the knuckle fork, and at the same time, the setting of the reinforcing plate makes the torsional resistance of the head of the knuckle fork better.
[0007] In order to facilitate the fixation of the drive shaft and the knuckle fork, a third through hole is arranged on the main body of the knuckle fork. The third through hole penetrates the main body of the knuckle fork along a second direction, and the second direction is perpendicular to the first direction. The axis of the third through hole intersects with the axis of the first through hole. During use, mounting holes are arranged at corresponding positions on the drive shaft, and the bolt is passed through the third through hole and the mounting hole and then fixed with a nut.
[0008] A torque dispersion structure for a joint fork obtained by the present utility model has the beneficial effects that the torque can be effectively dispersed through the reinforcing plate and the internal spline thereon, the stress concentration at the connection between the head of the joint fork and the main body of the joint fork is reduced, and at the same time, the torsional resistance of the head of the joint fork is better due to the setting of the reinforcing plate. BRIEF DESCRIPTION OF THE DRAWINGS
[0009] Figure 1 It is a schematic structural diagram of Embodiment 1 of the present utility model;
[0010] Figure 2 It is a schematic structural diagram of Embodiment 1 of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0011] In order to further elaborate on the technical means and effects adopted by the present utility model to achieve the predetermined utility model purpose, the following, in combination with the attached drawings and preferred embodiments, details the specific embodiments, structures, features and their effects according to the present utility model as follows.
[0012] Embodiment 1:
[0013] As Figure 1 , 2 shown, the present utility model discloses a torque dispersion structure for a joint fork, which includes a main body portion 1 of the joint fork and a head 4 of the joint fork that is integrally U-shaped. The main body portion 1 of the joint fork extends along a first direction and is connected to the head 4 of the joint fork. A first through hole 2 is provided on the main body portion 1 of the joint fork. The first through hole 2 penetrates the main body portion 1 of the joint fork along the first direction. A reinforcing plate 5 is provided at the middle position of the head 4 of the joint fork. The reinforcing plate 5 is perpendicular to the axis of the first through hole 2. A second through hole 6 coaxial with the first through hole 2 is provided on the reinforcing plate 5. Internal splines are provided on the inner walls of both the first through hole 2 and the second through hole 6. The diameter of the first through hole 2 and the distribution of the internal splines thereon are the same as the diameter of the second through hole 6 and the distribution of the internal splines thereon.
[0014] During use, external splines are provided on the transmission shaft. The transmission shaft is inserted into the first through hole 2 and the second through hole 6, and the external splines on the transmission shaft are matched with the internal splines on the first through hole 2 and the second through hole 6. When transmitting torque, the torque is transmitted simultaneously through the internal splines on the first through hole 2 and the second through hole 6, thereby dispersing the torque, reducing the stress concentration at the connection between the head 4 of the joint fork and the main body portion 1 of the joint fork, and at the same time, the setting of the reinforcing plate 5 makes the torsional resistance of the head 4 of the joint fork better.
[0015] In order to facilitate the fixation of the transmission shaft and the joint fork, a third through hole 3 is provided on the main body portion 1 of the joint fork. The third through hole 3 penetrates the main body portion 1 of the joint fork along a second direction. The second direction is perpendicular to the first direction. The axis of the third through hole 3 intersects with the axis of the first through hole 2. During use, mounting holes are provided at corresponding positions on the transmission shaft. The bolt is passed through the third through hole 3 and the mounting hole and then fixed with a nut.
[0016] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.
[0017] In the description of the present application, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected" and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection or an integral connection; it may be a mechanical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0018] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may include the first and second features being in direct contact, or may include the first and second features not being in direct contact but being in contact through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the first feature has a lower horizontal height than the second feature.
[0019] The above are only the preferred embodiments of the present utility model, and do not impose any form of limitation on the present utility model. Although the present utility model has been disclosed above with the preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to equivalent embodiments of equivalent changes within the scope of the technical solution of the present utility model by using the above-disclosed technical content. However, as long as it does not depart from the content of the technical solution of the present utility model, any simplified modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still fall within the scope of the technical solution of the present utility model.
Claims
1. A joint fork torque dispersion structure, characterized in that It includes a joint fork main body portion (1) and a joint fork head portion (4) that is U-shaped as a whole. The joint fork main body portion (1) extends along a first direction and is connected to the joint fork head portion (4). A first through hole (2) is provided on the joint fork main body portion (1), and the first through hole (2) penetrates the joint fork main body portion (1) along the first direction. A reinforcing plate (5) is provided at the middle position of the joint fork head portion (4). The reinforcing plate (5) is perpendicular to the axis of the first through hole (2). A second through hole (6) coaxial with the first through hole (2) is provided on the reinforcing plate (5). Internal splines are provided on the inner walls of both the first through hole (2) and the second through hole (6). The diameter of the first through hole (2) and the distribution of the internal splines thereon are the same as the diameter of the second through hole (6) and the distribution of the internal splines thereon.
2. The fork joint torque dispersion structure according to claim 1, wherein, A third through hole (3) is provided on the joint fork main body portion (1), and the third through hole (3) penetrates the joint fork main body portion (1) along a second direction. The second direction is perpendicular to the first direction, and the axis of the third through hole (3) intersects with the axis of the first through hole (2).