Transmission gear with damping function
By designing plastic material transmission gears with damping function, combined with shrapnel and heat dissipation components, the self-protection and noise absorption problems of the actuator gear when it stops, achieving low cost and light weight effects, and extending the service life of the gear .
Patent Information
- Application Number
- CN202421203990.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-29
AI Technical Summary
Existing actuator gears are prone to slip automatically when they stop, resulting in motor blockage and excessive current, and are costly, making it difficult to achieve low-priced and light-weight self-protection transmission gears.
A transmission gear with damping function is designed, with large helical gears and spur gear shafts made of plastic materials. By setting up shrapnel and heat dissipation components, self-protection and noise absorption during rotation are achieved, and production costs are reduced through injection molding process. .
It realizes self-protection when stopping, avoids motor blockage, reduces noise propagation, extends the service life of the gear, and reduces product weight and cost by using plastic materials.
Smart Images
Figure CN222229348U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of gear transmission, in particular to a transmission gear with a damping function. Background Art
[0002] Since recent years, with the rapid development of automobiles, the requirements for automobile intelligence have become higher and higher. In order to realize various intelligent actions, more and more actuator gears are used, such as headlight adjustment actuators, rearview mirror adjustment actuators, window lift actuators, etc., but currently when the actuator gear is stopped, on the one hand, the start and stop at a fixed position can be achieved through software limit, but the price is high, and on the other hand, the transmission gear with a damping structure will automatically slip when it is locked in the locked position. In order to avoid excessive current when stopping and causing the motor to burn out, and the price is low, the utility model is committed to developing a low-cost transmission gear with a damping structure for blocking. Utility Model Content
[0003] In view of the deficiencies of the prior art, the utility model provides a transmission gear with a damping function, which solves the problem of how to realize a low-priced, light-weight transmission gear for self-protection against motor stall.
[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: a transmission gear with damping function, comprising a spur gear shaft and a large bevel gear, a spring sheet is arranged on one side of the large bevel gear, and an assembly groove is opened in the middle of the spring sheet, the spur gear shaft comprises a shaft body, a ring base is fixedly connected to the surface of the shaft body, and a boss is fixedly connected to one side of the annular base, an assembly block is fixedly arranged on the surface of the shaft body and on one side of the boss, and a pinion is fixedly connected to the surface of the shaft body and on one side of the assembly block.
[0005] Preferably, the large bevel gear is fixedly mounted on one side of the annular base, and one end of the spur gear shaft passes through the large bevel gear and extends to the outside of the large bevel gear.
[0006] Preferably, the large bevel gear is made of plastic.
[0007] Preferably, a noise reduction component is arranged inside the shrapnel, and the noise reduction component includes a cavity, an elastic plate is fixedly connected to one side of the inner wall of the cavity, sound-absorbing cotton is bonded to the outer side of the elastic plate, and a plurality of sound-absorbing holes connected to the cavity are opened on the outer side of the shrapnel.
[0008] Preferably, a heat dissipation component is provided inside the large bevel gear, and the heat dissipation component includes a heat conducting plate. A cavity is opened inside the large bevel gear, and the inner wall of the cavity is fixedly connected to the heat dissipation plate. An air outlet connected to the cavity is opened on the outer side of the large bevel gear.
[0009] Preferably, the heat conducting plate is fixed on the surface of one side of the large bevel gear, and the heat conducting plate is fixedly connected to the surface of the heat dissipation plate through heat conducting fins.
[0010] Beneficial Effects
[0011] The utility model provides a transmission gear with damping function. Compared with the prior art, it has the following advantages:
[0012] Beneficial effects:
[0013] (1) The transmission gear with damping function generates friction and resistance with the large bevel gear through the arranged spring piece, so that the spur gear shaft can be stopped in time when it stops rotating, avoiding the motor from being blocked and the current being too large, which may cause the motor to burn out. At the same time, the material of the large bevel gear is replaced by plastic material instead of metal material, which reduces the density and the weight of the product, thus contributing to the lightweight and energy-saving consumption reduction of the vehicle and reducing the product cost.
[0014] (2) When the spring piece of the transmission gear with damping function rubs against the large bevel gear, the noise can be absorbed by the noise reduction component, thereby reducing the propagation and reflection of the noise and achieving a better noise reduction effect. At the same time, a heat dissipation component is provided inside the large bevel gear to accelerate the heat dissipation inside the large bevel gear, avoid deformation due to temperature for a long time, and extend the service life of the large bevel gear. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a disassembled diagram of the structure of the utility model;
[0016] Figure 2 It is a side view of the structure of the utility model;
[0017] Figure 3 It is a top view of the structure of the utility model;
[0018] Figure 4 It is a cross-sectional view of the structure of the utility model;
[0019] Figure 5 It is a cross-sectional view of the spring structure of the utility model;
[0020] Figure 6 It is a cross-sectional view of the gear structure of the utility model.
[0021] In the figure: 1. spur gear shaft; 101. shaft body; 102. annular base; 103. boss; 104. assembly block; 105. small gear; 2. large bevel gear; 3. spring piece; 4. assembly groove; 5. cavity; 6. elastic plate; 7. sound-absorbing cotton; 8. sound-absorbing hole; 9. heat-conducting plate; 10. cavity; 11. heat sink; 12. air outlet; 13. heat-conducting fins. DETAILED DESCRIPTION
[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0023] Embodiment 1
[0024] See also Figures 1 to 4 As shown, the utility model provides a transmission gear with damping function, including a spur gear shaft 1 and a large bevel gear 2, a spring sheet 3 is arranged on one side of the large bevel gear 2, the spring sheet 3 is a compressed spring frame, the spring sheet 3 is made of stainless steel, and the damping effect of the product is changed by adjusting the elastic force of the stainless steel part, so that the operation is smoother and more stable, and an assembly groove 4 is opened in the middle of the spring sheet 3, so that the spur gear shaft 1 can pass through, the spur gear shaft 1 includes a shaft body 101, and a ring base 102 is fixedly connected to the surface of the shaft body 101, and the ring base 102 is adapted to the large bevel gear 2, so that the large bevel gear 2 can be assembled on one side of the ring base 102, and a boss 103 is fixedly connected to one side of the ring base 102, An assembly block 104 is fixedly provided on the surface of the shaft 101 and located on one side of the boss 103, and a small gear 105 is fixedly connected to the surface of the shaft 101 and located on one side of the assembly block 104. The large bevel gear 2 is made of plastic material. The transmission gear with damping function is formed by injection molding + stamping + assembly. The transmission part is produced by PA66GF15 and POM, replacing traditional metal materials, and successfully replacing metal with plastic. The production process replaces the machining process with the injection molding process, which improves the production efficiency of the product and reduces the product cost. At the same time, the plastic material replaces the metal material, the density is reduced, and the product weight is reduced, which contributes to the lightweight and energy-saving and consumption-reducing of the vehicle.
[0025] The large bevel gear 2 is fixedly assembled on one side of the annular base 102 , and one end of the spur gear shaft 1 passes through the large bevel gear 2 and extends to the outside of the large bevel gear 2 .
[0026] Embodiment 2
[0027] Based on Example 1, please refer to Figure 5 As shown, a noise reduction component is arranged inside the shrapnel 3, and the noise reduction component includes a cavity 5, and the cavity 5 is opened inside the shrapnel 3. An elastic plate 6 is fixedly connected to one side of the inner wall of the cavity 5, and the elastic plate 6 is made of rubber material to reduce the propagation and reflection of noise. Sound-absorbing cotton 7 is bonded to the outer side of the elastic plate 6, and the sound-absorbing cotton 7 is made of rock wool material to absorb sound and reduce noise. A plurality of sound-absorbing holes 8 connected to the cavity 5 are opened on the outer side of the shrapnel 3 for transmitting noise into the cavity 5.
[0028] Embodiment 3
[0029] In conjunction with Example 1 and Example 2, please refer to Figure 1 and Figure 6 As shown, a heat dissipation component is arranged inside the large bevel gear 2, and the heat dissipation component includes a heat conducting plate 9, and a plurality of heat conducting plates 9 are arranged. A cavity 10 is opened inside the large bevel gear 2 to facilitate air circulation. A heat dissipation plate 11 is fixedly connected to the inner wall of the cavity 10, and an air outlet 12 connected to the cavity 10 is opened on the outer side of the large bevel gear 2. A plurality of air outlets 12 are arranged to improve the heat dissipation efficiency. The heat conducting plate 9 is fixed to the surface of one side of the large bevel gear 2, and the heat conducting plate 9 is fixedly connected to the surface of the heat dissipation plate 11 through heat conducting fins 13. The heat conducting plate 9, the heat dissipation plate 11 and the heat conducting fins 13 are all made of graphite material with good thermal conductivity. The heat dissipation component accelerates the heat dissipation inside the large bevel gear 2 to avoid deformation due to high temperature for a long time.
[0030] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited, and conventional equipment compatible with the equipment can be used.
[0031] When in use, the arranged spring piece 3 rubs against the large bevel gear 2 to generate resistance, so that the spur gear shaft 1 can be stopped in time when it stops rotating, so as to avoid the situation that the motor is blocked and the current is too large, resulting in the burning of the motor. At the same time, the material of the large bevel gear 2 is replaced by plastic material instead of metal material, so that the structure is lighter and cheaper. When the spring piece 3 rubs against the large bevel gear 2, the noise generated enters the cavity 5 through the sound-absorbing hole 8. Under the action of the sound-absorbing cotton 7, the noise can be absorbed. The elastic plate 6 is convenient for reducing the propagation and reflection of noise, so as to reduce the noise when the transmission gear structure is running. At the same time, when the large bevel gear 2 is running, the heat is transferred to the cavity 10 through the heat conducting plate 9, and the heat dissipation plate 11 absorbs the heat inside the large bevel gear 2 and the heat of the heat conducting plate 9. Then, during the operation of the gear, the heat is discharged through multiple air outlets 12, so as to accelerate the heat dissipation in the large bevel gear 2 and extend its service life.
[0032] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A transmission gear with a damping function, comprising a spur gear shaft (1) and a large helical gear (2), characterized in that: A spring sheet (3) is provided on one side of the large bevel gear (2), and a mounting groove (4) is provided in the middle of the spring sheet (3); the spur gear shaft (1) comprises a shaft body (101); a ring base (102) is fixedly connected to the surface of the shaft body (101), and a boss (103) is fixedly connected to one side of the ring base (102); a mounting block (104) is fixedly provided on the surface of the shaft body (101) and located on one side of the boss (103); and a pinion (105) is fixedly connected to the surface of the shaft body (101) and located on one side of the mounting block (104).
2. The transmission gear with damping function according to claim 1, characterized in that: The large bevel gear (2) is fixedly mounted on one side of the annular base (102), and one end of the spur gear shaft (1) passes through the large bevel gear (2) and extends to the outside of the large bevel gear (2).
3. The transmission gear with damping function according to claim 1, characterized in that: The large helical gear (2) is made of plastic material.
4. The transmission gear with damping function according to claim 1, characterized in that: A noise reduction component is arranged inside the spring sheet (3), and the noise reduction component comprises a cavity (5). An elastic plate (6) is fixedly connected to one side of the inner wall of the cavity (5), and sound-absorbing cotton (7) is bonded to the outer side of the elastic plate (6). A plurality of sound-absorbing holes (8) communicating with the cavity (5) are provided on the outer side of the spring sheet (3).
5. The transmission gear with damping function according to claim 1, characterized in that: A heat dissipation component is arranged inside the large bevel gear (2), and the heat dissipation component includes a heat conducting plate (9). A cavity (10) is provided inside the large bevel gear (2), and a heat dissipation plate (11) is fixedly connected to the inner wall of the cavity (10). An air outlet (12) connected to the cavity (10) is provided on the outer side of the large bevel gear (2).
6. The transmission gear with damping function according to claim 5, characterized in that: The heat conducting plate (9) is fixed on the surface of one side of the large bevel gear (2), and the heat conducting plate (9) is fixedly connected to the surface of the heat dissipation plate (11) via heat conducting fins (13).