An automobile special-shaped gear

Abstract

The utility model provides a kind of automobile special-shaped gear, including gear body, the gear body one end is square and the other end is semicircular, the one end of gear body forms abutting surface, the edge of the other end of gear body is equipped with tooth along its circumferential, the center of the other end of gear body is equipped with fixed hole.Its fixed hole can be used with bolt connection, realize the axial fixation of gear;The abutting surface of the one end of gear body can be connected with the face-to-face abutting of other components fixedly installed gear, realize the circumferential positioning of gear;Other components are equipped with the structure of square positioning hole and positioning groove on fixed seat adaptation plug-in, so as to realize the circumferential positioning of gear.Through using the above technical scheme, on the basis of existing gear axial fixation, multiple structures for circumferential positioning and fixation of gear are added, so as to reduce the influence of radial external force on bolt fixed connection, avoid bolt loosening due to radial external force.

Description

Technical Field

[0001] This utility model relates to the field of hardware and metal products technology, specifically to a special-shaped gear for automobiles. Background Technology

[0002] refer to Figure 1 As shown, gear A and gear B mesh with each other. Gear A is fixed, while gear B can reciprocate in the direction of the arrow.

[0003] In the prior art, gear A has a fixing hole at its center, and bolts are used to fix it to other components through this fixing hole. With this connection structure, gear A is continuously subjected to radial force generated by the meshing of gear B. Because this connection structure concentrates the load on gear A at its central fixing position, over time, the bolt connection at this fixing position is prone to loosening. If it loosens, gear A cannot be tightened, affecting its function. Utility Model Content

[0004] In view of the problems pointed out in the background art, this utility model proposes an irregularly shaped gear for automobiles to solve the above-mentioned technical problems.

[0005] The technical solution of this utility model is implemented as follows: A special-shaped gear for automobiles includes a gear body, one end of which is square and the other end is semi-circular. One end of the gear body forms an abutment surface, and the edge of the other end of the gear body is provided with teeth along its circumference. A fixing hole is provided at the center of the other end of the gear body.

[0006] The present invention is further provided that a fixing seat is provided on the lower side of the gear body, and a square positioning hole is provided on the fixing seat that corresponds to and communicates with the fixing hole, and the fixing hole is located inside the positioning hole.

[0007] The present invention is further provided that positioning grooves are provided on both sides of the fixing base.

[0008] The present invention is further provided that the upper side of the gear body is provided with a connecting seat, and the connecting seat is provided with a circular connecting hole that communicates with the fixing hole.

[0009] The present invention is further configured such that the diameter of the connecting hole is larger than the diameter of the fixing hole.

[0010] The present invention is further configured such that the fixing base is a square structure.

[0011] The present invention is further configured such that the connecting seat has a square structure.

[0012] By adopting the above technical solution, the beneficial effects of this utility model are as follows: The automotive irregular gear provided by this utility model has a fixing hole that can be used for bolt connection to achieve axial fixation of the gear; the abutment surface at one end of the gear body can be connected to other components that fix and mount the gear to achieve circumferential positioning of the gear; other components are provided with structures that fit and insert into the square positioning holes and positioning grooves on the fixing seat, thus achieving circumferential positioning of the gear. By adopting the above technical solution, multiple structures for circumferential positioning and fixing of the gear are added on the basis of the existing axial fixation of the gear. This reduces the influence of radial external force on the bolt fixing connection, avoids the bolt from loosening due to radial external force, and even if slight loosening occurs, the gear will not immediately loosen due to the influence of multiple circumferential limiting structures. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the existing technology.

[0015] Figure 2 This is a schematic diagram of the upper part of the present invention.

[0016] Figure 3 This is a schematic diagram of the lower part of the structure of this utility model. Figure 1 .

[0017] Figure 4 This utility model Figure 3 AA section view in the image.

[0018] Figure 5 This is a schematic diagram of the lower part of the structure of this utility model. Figure 2 .

[0019] Figure 6 This is a physical image of the product of this utility model.

[0020] The following are the labels in the attached diagram: 1. Gear body, 2. Abutment surface, 3. Tooth, 4. Fixing hole, 5. Fixing seat, 6. Positioning hole, 7. Positioning groove, 8. Connecting seat, 9. Connecting hole. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] For reference as follows Figures 1-4 The present invention will be described as follows: Example: An irregularly shaped gear for automobiles includes a gear body 1, which has a square shape at one end and a semi-circular shape at the other end.

[0023] One end of the gear body 1 forms an abutment surface 2, which can closely fit with the corresponding plane of other components on which the gear is mounted. This surface contact connection method can effectively disperse the force when the gear is subjected to radial force or torque, preventing the gear from rotating circumferentially around its axis. Through the friction and contact constraints between the surfaces, the gear is provided with basic circumferential positioning function.

[0024] The edge of the other end of the gear body 1 is provided with teeth 3 along its circumference, which constitute the core transmission component of the gear and realizes power transmission by meshing with other gears.

[0025] A fixing hole 4 is provided at the center of the other end of the gear body 1. The fixing hole 4 at the center is a key structure for axial fixation. It can be used with bolts to axially connect the gear body 1 with other components, restrict the movement of the gear along the axial direction, and ensure that the gear maintains a stable axial position during transmission.

[0026] A fixing seat 5 is provided on the lower side of the gear body 1. The fixing seat 5 is a square structure. The fixing seat 5 is provided with a square positioning hole 6 that corresponds to and communicates with the fixing hole 4. The fixing hole 4 is located inside the positioning hole 6.

[0027] Positioning grooves 7 are provided on both sides of the fixing base 5.

[0028] When the gear is installed, other components are designed with matching square protrusions that can be inserted into the square positioning holes 6. This square plug-in fit, because the four sides of the square structure can restrict the gear's rotational freedom in the circumferential direction, achieves precise circumferential positioning. At the same time, the positioning grooves 7 on both sides of the fixing seat 5 can cooperate with the positioning protrusions on other components to further enhance the circumferential positioning effect. The positioning grooves 7 provide lateral constraints to prevent the gear from shifting laterally or rotating under force, forming a multi-dimensional circumferential limit with the square positioning holes 6.

[0029] A connecting seat 8 is provided on the upper side of the gear body 1. The connecting seat 8 has a square structure and a circular connecting hole 9 that corresponds to and communicates with the fixing hole 4. The diameter of the connecting hole 9 is larger than the diameter of the fixing hole 4. The connecting hole 9 is mainly used to mate with the bolt head, and the bolt shank is fixedly connected to the threaded holes on other components.

[0030] In traditional gear connections, the connection relies solely on a central fixing hole and bolts. When the gear is subjected to radial force, the force concentrates at the bolt connection point, easily leading to bolt loosening. This invention, however, utilizes a multi-structure combination of the abutment surface 2, the fixing seat 5 (including a square positioning hole 6 and a positioning groove 7), and the connecting seat 8 to create multiple circumferential positioning points while maintaining the gear's axial fixation. These positioning structures distribute the radial force and torque on the gear across multiple contact surfaces, resulting in a more uniform distribution of external forces during operation. Even if the bolts slightly loosen during long-term use, the multiple circumferential limiting structures keep the gear in a fixed circumferential position, preventing immediate circumferential movement or displacement. This effectively extends the service life of the gear connection structure and improves the reliability and stability of the automotive transmission system.

[0031] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A special-shaped gear for automobiles, comprising a gear body, characterized in that: One end of the gear body is square and the other end is semi-circular. One end of the gear body forms a mating surface, and the edge of the other end of the gear body is provided with teeth along its circumference. A fixing hole is provided at the center of the other end of the gear body. A fixing seat is provided on the lower side of the gear body. The fixing seat is provided with a square positioning hole that corresponds to and communicates with the fixing hole. The fixing hole is located inside the positioning hole.

2. The automobile profiled gear according to claim 1, characterized in that: The fixing base has positioning grooves on both sides.

3. The automobile profiled gear according to claim 1, characterized in that: The gear body has a connecting seat on its upper side, and the connecting seat has a circular connecting hole that corresponds to and communicates with the fixing hole.

4. The automobile profiled gear according to claim 3, characterized in that: The diameter of the connecting hole is larger than the diameter of the fixing hole.

5. The automobile profiled gear wheel as claimed in claim 1, wherein: The fixing base is a square structure.

6. The automotive irregular-shaped gear according to claim 3, characterized in that: The connecting seat has a square structure.

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