Gearbox gear with chamfer

By designing reinforcement components and noise reduction components on the transmission gears, the problems of gear deformation and noise under high-speed rotation are solved, the structural strength and wear resistance are improved, and the gears are ensured to operate stably under high loads.

CN223387920UActive Publication Date: 2025-09-26GUANGZHOU MINGBAO MACHINERY EQUIPMENT CO LTD
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Patent Information

Application Number
CN202423125720.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-18
Publication Date
2025-09-26
Estimated Expiration
2034-12-18

AI Technical Summary

Technical Problem

Gears generate prestress under high-speed rotation and heavy loads, causing deformation and cracking, and noise and heat accumulation affect service life and comfort. Traditional heat sink designs may weaken gear strength and rigidity.

Method used

The gearbox gears are designed with chamfers and adopt reinforcement components, noise reduction components and shock-absorbing sleeve structures, including strip grooves, hole grooves, shock-absorbing sleeves, rivets, through grooves, foam aluminum and reinforcement plates to improve stress distribution, reduce noise and heat, and enhance structural strength and wear resistance.

Benefits of technology

Effectively reduce gear deformation and cracking, reduce noise and heat accumulation, improve service life and comfort, enhance the overall strength and rigidity of the gear, and ensure smooth operation.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a gearbox gear with chamfers, and relates to the technical field of mechanical transmission parts. The gearbox gear with the chamfer comprises a body assembly, a noise reduction assembly is arranged on the upper surface of the body assembly, and a reinforcing assembly is arranged at the position, located on the edge of the noise reduction assembly, of the upper surface of the body assembly; the reinforcing assembly comprises a strip-shaped groove, the strip-shaped groove is formed in the position, located on the edge of the noise reduction assembly, of the upper surface of the body assembly, a hole groove is formed in one end of the strip-shaped groove, and a cushioning sleeve is inserted into the hole groove. According to the gear, damage caused by overload is avoided, then the prestress of the gear body is reduced, deformation and cracking are avoided, the service life of the gear body is not affected, rivets are convenient to install through the hole grooves, the tightness of rivet installation is improved through the cushioning sleeve, and part of generated vibration can be absorbed.
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Description

Technical Field

[0001] The utility model relates to the technical field of mechanical transmission components, in particular to a transmission gear with a chamfered angle. Background Art

[0002] Gears are a common mechanical component, mainly used to transmit power and change speed and direction. Its basic structure consists of multiple teeth, usually arranged in a circular shape, and power transmission is completed through the mutual engagement between teeth. Transmission gears are widely used in automobiles, motorcycles, industrial machinery, heavy equipment, agricultural machinery, aerospace and other fields. Their main function is to adjust the output speed and torque of the engine to adapt to different working environments and needs. Its main features include multi-gear design to provide different transmission ratios, realize acceleration, deceleration and reverse functions, and high load capacity to ensure safe operation and smooth engagement under various working conditions, thereby reducing noise and vibration and improving driving comfort.

[0003] During the use of gears, due to high-speed rotation and large loads, strong prestress will be generated, which may cause uneven deformation of the gears, thereby causing cracking and other structural damage, seriously affecting the service life and reliability of the gears. At the same time, the gears will also generate heat and noise during operation. The accumulation of heat may cause the material properties to deteriorate and increase the possibility of gear wear, while the noise affects the comfort and user experience of the equipment. The traditional solution is usually to open heat dissipation slots in the gear design to reduce the temperature of the gear by increasing the heat dissipation area. However, although this method can improve the heat dissipation effect to a certain extent, it may weaken the overall strength and rigidity of the gear and increase the risk of fracture.

[0004] Therefore, the present invention provides a transmission gear with chamfered corners to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the present invention provides a transmission gear with a chamfered angle, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a transmission gear with a chamfer, comprising a body component, a noise reduction component is provided on the upper surface of the body component, and a reinforcement component is provided on the upper surface of the body component at the edge of the noise reduction component;

[0007] The reinforcing component includes a strip groove, which is opened on the upper surface of the main body component at the edge of the noise reduction component. A hole groove is opened at one end of the strip groove, a shock-absorbing sleeve is inserted into the inside of the hole groove, and a rivet is inserted into the inside of the shock-absorbing sleeve.

[0008] A further improvement of the technical solution of the present utility model is that the main body assembly includes a gear body, the interior of the gear body is sleeved on the outer surface of the shock-absorbing sleeve, the outer surface of the gear body is paved with a wear-resistant layer, and the outer surface of the wear-resistant layer is paved with an anti-corrosion layer.

[0009] A further improvement of the technical solution of the present utility model is that the noise reduction component includes a through groove, the through groove is opened on the upper surface of the main body component, the interior of the through groove is filled with foam aluminum, and the upper surface of the foam aluminum is fixedly connected with a reinforcement plate.

[0010] A further improvement of the technical solution of the present invention is that: the outer side of the gear body is provided with external teeth, and the inner side of the gear body is provided with internal teeth.

[0011] A further improvement of the technical solution of the present utility model is that both the outer teeth and the inner teeth are provided with chamfers and are in an arc shape.

[0012] A further improvement of the technical solution of the present utility model is that: the number of the through grooves is three and they are evenly distributed along the periphery of the axis.

[0013] A further improvement of the technical solution of the present utility model is that: the number of the reinforcing components is three, and they are respectively arranged at intervals of the through-slot.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. Through the setting of the reinforcement component, the strip groove can reduce the prestress and improve the stress distribution, avoid damage caused by overload, and thus reduce the prestress of the gear body, avoid deformation and cracking, and affect the service life of the gear body. The hole groove facilitates the installation of rivets, and the shock-absorbing sleeve improves the tightness of the rivet installation and can absorb some of the vibration generated. At the same time, the rivet can enhance the structural strength and wear resistance of the gear and improve the service life of the gear body.

[0016] 2. Through the noise reduction component, the through-groove can reduce the weight of the gear body, reduce the noise during rotation, improve the comfort and user experience of the equipment, and facilitate heat dissipation, avoiding heat accumulation, which leads to a decline in material properties and reduces the possibility of wear of the gear body. Subsequently, foam aluminum is filled inside the through-groove to further reduce noise and dissipate heat, and can also provide shock absorption. Combined with the setting of the reinforcement plate, the opening of the through-groove can be prevented from affecting the strength of the gear body and causing it to break, thereby ensuring the overall strength and rigidity of the gear body and maintaining its service life and smooth operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 Schematic diagram of the structure of a gearbox with chamfered corners;

[0018] Figure 2The figure is a schematic diagram of the structure of a rivet in a gearbox with a chamfered corner;

[0019] Figure 3 Schematic diagram of the structure of aluminum foam in a gearbox with chamfered corners;

[0020] Figure 4 Schematic diagram of the planar structure of the gear body in the gearbox with chamfered corners;

[0021] Figure 5 for Figure 2 A magnified schematic diagram of the structure at point A.

[0022] In the figure: 1. Strip groove; 2. Hole groove; 3. Shock-absorbing sleeve; 4. Rivet; 5. Gear body; 6. Wear-resistant layer; 7. Anti-corrosion layer; 8. Through groove; 9. Foam aluminum; 10. Reinforcement plate; 11. External teeth; 12. Internal teeth. DETAILED DESCRIPTION

[0023] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0024] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0025] In addition, numerous specific details are provided in the following specific examples to better illustrate the present application. Those skilled in the art will appreciate that the present application can be practiced without certain specific details. In some instances, methods, means, and components well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.

[0026] Reference Figure 1-Figure 5 , this utility model provides three technical solutions:

[0027] Example 1:

[0028] A gearbox gear with a chamfered corner comprises a body component, a noise reduction component is provided on the upper surface of the body component, and a reinforcement component is provided on the upper surface of the body component at the edge of the noise reduction component;

[0029] The reinforcement component includes a strip groove 1, which is opened on the upper surface of the main body component at the edge of the noise reduction component. A hole groove 2 is opened at one end of the strip groove 1, and a shock-absorbing sleeve 3 is inserted into the interior of the hole groove 2. A rivet 4 is inserted into the interior of the shock-absorbing sleeve 3. The strip groove 1 can reduce the prestress and improve the stress distribution to avoid damage caused by overload, thereby reducing the prestress of the gear body 5, avoiding deformation and cracking, and affecting the service life of the gear body 5. The hole groove 2 facilitates the installation of the rivet 4, and the shock-absorbing sleeve 3 improves the tightness of the installation of the rivet 4 and can absorb part of the vibration generated. At the same time, the rivet 4 can enhance the structural strength and wear resistance of the gear and improve the service life of the gear body 5.

[0030] Example 2:

[0031] Based on Example 1:

[0032] The main body assembly includes a gear body 5, the interior of the gear body 5 is sleeved on the outer surface of the shock-absorbing sleeve 3, the outer surface of the gear body 5 is covered with a wear-resistant layer 6, and the outer surface of the wear-resistant layer 6 is covered with an anti-corrosion layer 7. The wear-resistant layer 6 and the anti-corrosion layer 7 are used in combination to significantly reduce the wear and corrosion of the gear body 5 and extend its service life.

[0033] The noise reduction component includes a through groove 8, which is opened on the upper surface of the main body component. The interior of the through groove 8 is filled with foam aluminum 9, and the upper surface of the foam aluminum 9 is fixedly connected with a reinforcement plate 10. The through groove 8 can reduce the weight of the gear body 5, reduce the noise during rotation, and facilitate heat dissipation. Filling the through groove 8 with foam aluminum 9 can further reduce noise and dissipate heat, and can also provide shock absorption. Combined with the setting of the reinforcement plate 10, the opening of the through groove 8 can avoid affecting the strength of the gear body 5, thereby ensuring the service life of the gear body 5 and the smooth operation.

[0034] The outer side of the gear body 5 is provided with external teeth 11, and the inner side of the gear body 5 is provided with internal teeth 12. The external teeth 11 and the internal teeth 12 are convenient for connection with other transmission devices, and make the contact area larger, so as to improve the stability of the meshing and reduce noise and vibration.

[0035] The outer teeth 11 and the inner teeth 12 are both provided with chamfers and arc-shaped, so that they are arranged in an arc shape, thereby expanding the contact area, dispersing stress, facilitating smoother transmission, reducing impact, reducing noise, and improving load-bearing capacity.

[0036] There are three through-grooves 8 , which are evenly distributed along the periphery of the axis, thereby reducing the overall weight of the gear body 5 and ensuring smooth operation.

[0037] There are three reinforcing components, which are respectively arranged at intervals of the through slot 8 , and can release the prestress of the gear body 5 in multiple directions, thereby improving the overall strength of the gear body 5 .

[0038] Example 3:

[0039] Based on Example 1 and Example 2:

[0040] First, the strip grooves 1 are evenly distributed on the periphery of the gear body 5, which can release the prestress of the gear body 5 in multiple directions and are connected to the hole grooves 2. The hole grooves 2 facilitate the installation of the rivets 4. The shock-absorbing sleeves 3 improve the tightness of the installation of the rivets 4 and can absorb some of the vibrations generated. At the same time, the rivets 4 can enhance the structural strength and wear resistance of the gear. Then, the wear-resistant layer 6 and the anti-corrosion layer 7 are used in combination to significantly reduce the wear and corrosion of the gear body 5. Secondly, the through-groove 8 reduces the overall weight of the gear body 5, and the inside of the through-groove 8 is filled with foam aluminum 9 to further reduce noise and dissipate heat. Combined with the setting of the reinforcement plate 10, the opening of the through-groove 8 is prevented from affecting the strength of the gear body 5. Finally, the outer teeth 11 and the inner teeth 12 are both provided with chamfers and are arc-shaped, which are convenient for connection with other transmission devices and make the contact area larger, thereby improving the stability of the meshing.

[0041] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gearbox gear with a chamfer, comprising a body assembly, characterized in that: A noise reduction component is provided on the upper surface of the body component, and a reinforcement component is provided on the upper surface of the body component at the edge of the noise reduction component; The reinforcing component comprises a strip groove (1), the strip groove (1) being provided on the upper surface of the main body component at the edge of the noise reduction component, a hole groove (2) being provided at one end of the strip groove (1), a shock absorbing sleeve (3) being inserted into the interior of the shock absorbing sleeve (3), and a rivet (4) being inserted into the interior of the shock absorbing sleeve (3).

2. The transmission gear with chamfered corners according to claim 1, characterized in that: The main body assembly comprises a gear body (5), the interior of the gear body (5) is sleeved on the outer surface of the shock-absorbing sleeve (3), the outer surface of the gear body (5) is paved with a wear-resistant layer (6), and the outer surface of the wear-resistant layer (6) is paved with an anti-corrosion layer (7).

3. The transmission gear with chamfered corners according to claim 1, characterized in that: The noise reduction component comprises a through groove (8), the through groove (8) is opened on the upper surface of the main body component, the interior of the through groove (8) is filled with foam aluminum (9), and the upper surface of the foam aluminum (9) is fixedly connected with a reinforcement plate (10).

4. The transmission gear with chamfered corners according to claim 2, characterized in that: The outer side of the gear body (5) is provided with external teeth (11), and the inner side of the gear body (5) is provided with internal teeth (12).

5. The transmission gear with chamfered corners according to claim 4, characterized in that: The outer teeth (11) and the inner teeth (12) are both provided with chamfers and are in an arc shape.

6. The transmission gear with chamfered corners according to claim 3, characterized in that: The number of the through grooves (8) is three and they are evenly distributed along the periphery of the axis.

7. The transmission gear with chamfered corners according to claim 1, characterized in that: The number of the reinforcing components is three, and they are respectively arranged at intervals of the through slot (8).