Gear for automobile gearbox
By setting up flow and heat dissipation channels inside the gearbox gears, filling them with coolant, and using sealing devices, the problem of wear caused by heat accumulation in the gears is solved, achieving effective heat dissipation and reducing wear, thus extending the service life of the gears.
Patent Information
- Application Number
- CN202520404582.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-02-13
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Gears generate heat during operation, leading to wear and affecting their service life.
A gear for automotive transmissions has been designed with internal flow channels and heat dissipation channels, filled with coolant and protected by a sealing device to prevent coolant leakage. It is combined with heat-dissipating silicone rubber and a buffer to reduce heat accumulation and impact wear.
Effective heat dissipation reduces gear wear and extends service life, while a sealing device ensures the coolant's tightness, reducing maintenance needs.
Smart Images
Figure CN223908733U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to gear technology field, especially a gear for automobile gearbox. BACKGROUND
[0002] Gear is the mechanical element that has the tooth on the rim and can continuously mesh transmission motion and power, the automobile has become the indispensable traffic tool of people going out, needs according to different road conditions to change the running speed of automobile in the running process of automobile, and the gearbox as the speed change device of automobile can produce different speed change ratio between engine and wheel in the running process of automobile, the main component that plays a role in the transmission process of automobile speed change is axle and gear.
[0003] Gear is realized running through friction, and heat is generated in the process of movement, leading to that gear is more easily worn, which is not conducive to long-term use of gear.
[0004] To solve this problem, the utility model comes into being. UTILITY MODEL CONTENT
[0005] Therefore, in view of the above problems, the utility model provides a gear for automobile gearbox with simple structure and good heat dissipation effect.
[0006] To solve the above technical problem, the utility model takes the following solution: a gear for automobile gearbox, including gear body, gear tooth arranged on the gear body, the flow channel is arranged around in the gear body, the gear tooth is arranged with the heat dissipation channel, the heat dissipation channel is linked with the flow channel, the flow channel and the heat dissipation channel are filled with cooling liquid that absorbs heat, the gear body is arranged with the liquid inlet channel that is linked with the flow channel, the gear body is arranged with the sealing device for sealing the liquid inlet channel.
[0007] Further improvement is that: the sealing device is: sealing bolt, the sealing bolt is threadedly connected and is arranged in the liquid inlet channel, the sealing bolt and the gear body are arranged with the anti-leakage device that prevents leakage.
[0008] Further improvement is that: the anti-leakage device includes sealing ring, the gear body is arranged with the sealing groove, the sealing ring is arranged in the sealing groove, the sealing groove is arranged with the pusher that pushes the sealing ring and abuts against the sealing bolt.
[0009] Further improvement is that: the pusher is: push spring, one end of the push spring is connected with the sealing ring, the other end of the push spring is connected with the inner wall of the sealing groove.
[0010] Further improvement is that the gear body is provided with a first channel around, the first channel is provided with heat dissipation silicone rubber for shock absorption and heat dissipation, and the heat dissipation silicone rubber is locked in the first channel through bolts.
[0011] Further improvement is that the gear tooth side is provided with a second channel communicated with the first channel, the second channel is provided with a shock pad at the end surface of the gear tooth, and a buffer is arranged between the shock pad and the heat dissipation silicone rubber.
[0012] Further improvement is that the buffer is a buffer spring, one end of the buffer spring is connected with the shock pad, and the other end of the buffer spring is connected with the heat dissipation silicone rubber.
[0013] By adopting the foregoing technical scheme, the beneficial effects of the utility model are:
[0014] The structure is simple, and the heat dissipation effect is good. When the gear is in operation, the cooling liquid in the heat dissipation channel and the flow channel can absorb the heat generated during the operation of the gear, thereby reducing the heat generated during the operation of the gear, reducing the wear of the gear and prolonging the service life of the gear. The sealing screw is pushed against the sealing ring by the push spring, so that if the sealing screw is slightly loose during the operation of the gear, the sealing can be ensured, so that the cooling liquid cannot run out, the maintenance is reduced, and the long-term use is facilitated. BRIEF DESCRIPTION OF DRAWINGS
[0015] Fig. 1 is a gear structure schematic diagram for automobile gearbox according to an embodiment of the utility model.
[0016] Fig. 2 is a cutaway structure schematic diagram of the leakage prevention device according to an embodiment of the utility model.
[0017] Fig. 3 is an enlarged structure schematic diagram at A according to an embodiment of the utility model. DETAILED DESCRIPTION
[0018] The utility model will be further described in combination with the drawings and specific embodiments.
[0019] REFERENCE Figs. 1-3The utility model discloses a gear for automobile gearbox, including gear body 1, the gear on gear body 1 is set up gear, the gear body 1 is surrounded and is seted up flow channel 2, the gear is seted up heat dissipation channel 3, heat dissipation channel 3 is linked with flow channel 2, flow channel 2 and heat dissipation channel 3 are filled with the coolant of absorbing heat, the gear body 1 is seted up with the liquid inlet channel of being linked with flow channel 2, the gear body 1 is equipped with the sealing bolt 8 for the liquid inlet channel of sealing, the sealing bolt 8 is connected with the liquid inlet channel, the sealing bolt 8 and gear body 1 between be equipped with the sealing ring 11 of preventing leakage, the gear body 1 is seted up sealing groove 9, the sealing ring 11 is located in sealing groove 9, the sealing groove 9 is equipped with the push spring 10 of push sealing ring 11 and resist the sealing bolt 8, the push spring 10 one end is connected with sealing ring 11, the push spring 10 other end and sealing groove 9 inner wall are connected. Wherein, when using, gear in operation, the coolant in heat dissipation channel 3 and flow channel 2 can absorb the heat generated when the gear runs, thereby reducing the heat generated when the gear runs, thereby reducing the wear and tear of the gear, improve the service life of the gear. And push spring 10 push sealing ring 11 and resist the sealing bolt 8, if the sealing bolt 8 has slight loosening when the gear runs, can also guarantee the sealing, so that the coolant will not run out, reduce maintenance, be favorable to long -term use.
[0020] In order to further dissipate heat and reduce the wear and tear caused by the collision between gears, the first channel is formed around the gear body 1, the heat dissipation silica rubber 7 for shock absorption and heat dissipation is arranged in the first channel, the heat dissipation silica rubber 7 is locked in the first channel by a bolt, the second channel 4 in communication with the first channel is formed on the side surface of the gear, the shock pad 5 is arranged on the end surface of the gear in the second channel 4, the buffer spring 6 is arranged between the shock pad 5 and the heat dissipation silica rubber 7, one end of the buffer spring 6 is connected with the shock pad 5, and the other end of the buffer spring 6 is connected with the heat dissipation silica rubber 7. The heat dissipation silica rubber 7 can not only help the gear dissipate heat better, but also can buffer the force generated by the collision of the gear, so as to further reduce the wear and tear of the gear, and improve the service life of the gear. The shock pad 5 and the spring arranged at the position of the gear can buffer the force during the collision when the gears are engaged, so as to further reduce the collision wear of the gear and further improve the service life of the gear.
[0021] The basic principle and main features of the utility model and its advantages are shown and described above, and the skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions are only to illustrate the principle of the utility model, and various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed, and the scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A gear for an automotive transmission comprising a gear body, a tooth provided on the gear body, characterized in that: The gear body is provided with a flow channel around the inside, the gear tooth is provided with a heat dissipation channel, the heat dissipation channel is communicated with the flow channel, the flow channel and the heat dissipation channel are filled with cooling liquid which absorbs heat, the gear body is provided with a liquid inlet channel communicated with the flow channel, and the gear body is provided with a sealing device for sealing the liquid inlet channel.
2. A gear wheel for use in an automotive gearbox according to claim 1, characterized in that: The sealing device is a sealing bolt which is threadedly connected to the liquid inlet channel, and the sealing bolt is provided with a leakage prevention device between the gear body to prevent leakage.
3. A gear wheel for use in an automotive gearbox according to claim 2, characterised in that: The leakage prevention device comprises a sealing ring, the gear body is provided with a sealing groove, the sealing ring is arranged in the sealing groove, and the sealing groove is provided with a pushing piece for pushing the sealing ring against the sealing bolt.
4. A gear wheel for use in an automotive gearbox according to claim 3, characterized in that: The pushing piece is a pushing spring, one end of the pushing spring is connected with the sealing ring, and the other end of the pushing spring is connected with the inner wall of the sealing groove.
5. A gear wheel for use in an automotive gearbox according to claim 1, characterized in that: The gear body is provided with a first channel around the inside, the first channel is provided with heat dissipation silicon rubber for shock absorption and heat dissipation, and the heat dissipation silicon rubber is locked in the first channel by a bolt.
6. A gear wheel for use in an automotive gearbox according to claim 5, characterised in that: The gear tooth side is provided with a second channel communicated with the first channel, the end surface of the second channel located in the gear tooth is provided with a shock pad, and the shock pad is provided with a buffer between the heat dissipation silicon rubber.
7. A gear wheel for use in an automotive gearbox according to claim 6, characterised in that: The buffer is a buffer spring, one end of the buffer spring is connected with the shock pad, and the other end of the buffer spring is connected with the heat dissipation silicon rubber.