High-precision half axle gear
By setting up sealed oil chambers and limited movement components inside the half-shaft gears, automatic lubrication is achieved, solving the problem of increased friction caused by insufficient lubrication, improving transmission accuracy and efficiency, reducing noise and vibration, and extending the life of parts.
Patent Information
- Application Number
- CN202520015403.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2025-10-21
- Estimated Expiration
- 2035-01-06
AI Technical Summary
Existing automobile axle gears experience increased friction due to insufficient lubrication after long-term use. The increased friction generates heat, affecting gear precision and transmission efficiency, and increasing noise and vibration, affecting driving comfort and vehicle performance.
A high-precision half-axle gear was designed. By setting up a sealed oil chamber, a telescopic chamber, a limit movement component and an oil inlet hole inside the gear, automatic lubricating oil addition and dynamic adjustment of the flow path and amount of lubricating oil were achieved to ensure proper lubrication.
It reduces friction and wear, improves transmission accuracy and efficiency, reduces noise and vibration, extends parts life, ensures proper lubrication under different working conditions, and avoids insufficient or excessive lubrication.
Smart Images
Figure CN223459837U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile half axle gear, concretely to a high accuracy half axle gear. BACKGROUND
[0002] The half axle gear of the automobile is an important component in the automobile transmission system, and is also called half axle tooth or axle gear, which is a kind of conical gear, usually appears in pairs in the differential of the automobile, is connected with the transmission half axle through the spline and the like, and drives the wheels on the left and right sides of the automobile respectively, the half axle gear is installed on the differential assembly, the differential assembly can be located in the rear axle bag or the transmission according to the driving mode of the automobile, and the main function of the half axle gear is to transmit the power generated by the engine to the driving wheels through the clutch, the transmission, the main reducer and the differential, so as to realize speed reduction and torque increase, thereby driving the automobile to move forward or backward.
[0003] The existing automobile half axle gear cannot automatically add lubricating oil to the internal conical gear after long time use, the friction between the conical gears is intensified, the gear surface is worn out quickly, the increase of the friction force generates more heat, the gear temperature is increased, the high temperature can cause thermal deformation of the gear material, and then the precision and cooperation of the gear are affected, the increase of the friction force means that more energy is needed to overcome the friction, thereby leading to the reduction of the transmission efficiency, which not only increases the fuel consumption, but also can affect the acceleration performance of the automobile, and the insufficient lubricating oil causes greater noise and vibration when the gear operates, which not only reduces the driving comfort, but also damages other parts of the automobile. UTILITY MODEL CONTENTS
[0004] The utility model provides a kind of high accuracy half axle gear, with the advantage that half axle gear is automatically added lubricating oil to make its transmission precision increase, to solve the problem that the precision of half axle gear is reduced due to the increase of friction.
[0005] To realize the purpose that axle gear is automatically added lubricating oil to make its transmission precision increase, the utility model provides the following technical scheme: a kind of high accuracy half axle gear, including automobile differential shell and half axle gear body movably installed in the inside of automobile differential shell, the inside of automobile differential shell is movably installed with planetary gear body, the inside of half axle gear body is evenly provided with sealed oil cavity, the inside of half axle gear body is evenly provided with telescopic cavity, limit moving assembly is movably installed at the inner wall of telescopic cavity, pressure column is installed on the outside surface of limit moving assembly, flow hole is formed in the inside of pressure column, oil inlet hole is evenly formed in the inside of pressure column.
[0006] As a preferred technical scheme of the utility model, the limit moving assembly includes connecting spring and chuck, the connecting spring is installed at the inner wall of telescopic cavity, and the chuck is installed on the surface of one end of the connecting spring.
[0007] As a preferred technical scheme of the utility model, the outer side surface of the chuck is in movable contact with the inner wall of the telescopic cavity, the inner side surface of the chuck is in movable contact with the outer side surface of the compression column, and the outer side surface of the compression column is in movable contact with the inner wall of the telescopic cavity.
[0008] As a preferred technical scheme of the utility model, the inner part of the half shaft gear body is uniformly provided with a plurality of oil inlet pipes, one end surface of the oil inlet pipe extends to the inside of the sealed oil cavity, and the outer side surface of the plurality of oil inlet pipes is movably provided with an oil nozzle.
[0009] As a preferred technical scheme of the utility model, the outer side surface of the half shaft gear body is in mesh with the outer side surface of the planetary gear body.
[0010] As a preferred technical scheme of the utility model, the half shaft gear body is uniformly provided with a stepped body, the stepped body is provided with a stepped surface, a stepped groove is formed between the two stepped bodies, the inner wall of the stepped groove is in movable contact with the outer side surface of the compression column, and the outer side surface of the planetary gear body is in movable contact with the outer side surface of the compression column.
[0011] Compared with the prior art, the utility model provides a high-precision half shaft gear, which has the following beneficial effects:
[0012] The high-precision half shaft gear is automatically added with lubricating oil to the stepped groove through the cooperation of the telescopic cavity, the chuck, the compression column, the connecting spring, the oil inlet hole and the oil flow hole, which helps to reduce friction and wear, reduce noise and vibration during gear transmission, improve the transmission efficiency and precision between the half shaft gear body and the planetary gear body, prolong the service life of the parts, and dynamically adjust the flow path and amount of lubricating oil through the extrusion of the planetary gear body on the compression column and the elastic deformation of the connecting spring. The dynamic adjustment mechanism helps to ensure that appropriate lubrication can be provided under different working conditions, and the situation of excessive lubrication or insufficient lubrication is avoided. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a whole structure schematic view of the utility model;
[0014] Figure 2 It is an internal structure schematic view of the half shaft gear body of the utility model;
[0015] Figure 3 It is an internal structure schematic view of the limiting moving assembly of the utility model;
[0016] Figure 4 It is another internal structure schematic view of the limiting moving assembly of the utility model from another perspective.
[0017] In the figure: 1, automobile differential shell; 2, half axle gear body; 3, planetary gear body; 4, oil inlet hole; 5, oil flow hole; 6, step surface; 7, step body; 8, step groove; 9, sealed oil cavity; 10, oil inlet pipe; 11, oil nozzle; 12, telescopic cavity; 13, chuck; 14, pressing column; 15, connecting spring. DETAILED DESCRIPTION
[0018] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.
[0019] Please refer to Figures 1-4 The utility model discloses a kind of high-precision half axle gears, including automobile differential shell 1 and the half axle gear body 2 of movable installation in the inside of automobile differential shell 1, the inside of automobile differential shell 1 is movably installed with planetary gear body 3, the inside of half axle gear body 2 is evenly provided with sealed oil cavity 9, the inside of half axle gear body 2 is evenly provided with telescopic cavity 12, limit mobile subassembly is movably installed at the inner wall of telescopic cavity 12, limit mobile subassembly's outer side surface is installed with pressing column 14, oil flow hole 5 is provided in the inside of pressing column 14, the inside of pressing column 14 is evenly provided with oil inlet hole 4, oil inlet hole 4 in the end of pressing column 14 returns telescopic cavity 12, part of lubricating oil is rotated by oil flow hole 5 and half axle gear body 2 itself, so that lubricating oil flows into step groove 8, by oil inlet pipe 10, lubricating oil can be constantly added to sealed oil cavity 9, so that half axle gear body 2 is added lubricating oil to step groove 8 during working process, it is helpful to reduce friction and abrasion, prolong the service life of part, by the extrusion of planetary gear body 3 to pressing column 14 and the elastic deformation of connecting spring 15, system can dynamically adjust the flow path and quantity of lubricating oil, dynamic adjustment mechanism is helpful to ensure that appropriate lubrication can be provided under different working conditions, avoid the case of excessive lubrication or insufficient lubrication.
[0020] The limiting moving assembly comprises a connecting spring 15 and a chuck 13, the connecting spring 15 is installed at the inner wall of the telescopic cavity 12, the chuck 13 is installed at the surface of one end of the connecting spring 15, the outer surface of the chuck 13 is in movable contact with the inner wall of the telescopic cavity 12, the inner surface of the chuck 13 is in movable contact with the outer surface of the pressure column 14, the outer surface of the pressure column 14 is in movable contact with the inner wall of the telescopic cavity 12, the inner part of the half shaft gear body 2 is uniformly provided with a plurality of oil inlet pipes 10, one end surface of the oil inlet pipe 10 extends to the inside of the sealed oil cavity 9, the outer surface of the plurality of oil inlet pipes 10 is movably provided with an oil nozzle 11, the outer surface of the half shaft gear body 2 is in mesh with the outer surface of the planetary gear body 3, the half shaft gear body 2 is uniformly provided with a step body 7, the step body 7 is provided with a step surface 6, the step groove 8 is formed between the two step bodies 7, the inner wall of the step groove 8 is in movable contact with the outer surface of the pressure column 14, the outer surface of the planetary gear body 3 is in movable contact with the outer surface of the pressure column 14, the step body 7 can increase the connecting strength between the half shaft gear body 2 and the planetary gear body 3, so as to ensure that the half shaft gear body 2 and the planetary gear body 3 will not be loose or fall off during rotation, the existence of the step surface 6 provides a clear positioning reference for the installation of the half shaft gear body 2, so that the gear can be accurately matched with other components during assembly, the step surface 6 can increase the rigidity and strength of the half shaft gear body 2, prevent the half shaft gear body 2 from being deformed or broken due to uneven stress, thereby improving the stability of the entire gear system, the step groove 8 can reduce the contact area between the tooth surfaces, thereby reducing the oil film pressure, keeping the lubricating oil film stable, reducing the damage to the gear tooth surface, also facilitating the lubricating oil to penetrate between the tooth surfaces to form a protective film, reducing friction and wear, reducing noise and vibration during gear transmission, and improving the operation efficiency and stability of the entire gear system.
[0021] The working principle and use process of the utility model are as follows: when the half shaft gear body 2 works, the planetary gear body 3 drives the half shaft gear body 2 to rotate, and the half shaft gear body 2 is provided with a plurality of step surfaces 6, a plurality of step bodies 7 and a plurality of step grooves 8, the step body 7 can increase the connecting strength between the half shaft gear body 2 and the planetary gear body 3, so as to ensure that the half shaft gear body 2 and the planetary gear body 3 will not be loose or fall off during rotation, the existence of the step surface 6 provides a clear positioning reference for the installation of the half shaft gear body 2, so that the gear can be accurately matched with other components during assembly, the step surface 6 can increase the rigidity and strength of the half shaft gear body 2, prevent the half shaft gear body 2 from being deformed or broken due to uneven stress, thereby improving the stability of the entire gear system, the step groove 8 can reduce the contact area between the tooth surfaces, thereby reducing the oil film pressure, keeping the lubricating oil film stable, reducing the damage to the gear tooth surface, also facilitating the lubricating oil to penetrate between the tooth surfaces to form a protective film, reducing friction and wear, reducing noise and vibration during gear transmission, and improving the transmission efficiency and precision between the half shaft gear body and the planetary gear body.
[0022] And the planetary gear body 3 extrudes the step body 7 and the pressure column 14, the pressure column 14 drives the chuck 13 to move in the telescopic cavity 12, the chuck 13 extrudes the connecting spring 15, the surface of one end of the chuck 13 extends to the inside of the sealed oil cavity 9, the lubricating oil in the sealed oil cavity 9 flows into the oil inlet hole 5 through the oil inlet hole 4, and the pressure column 14 is separated from the planetary gear body 3, the connecting spring 15 has elastic deformation, the oil inlet hole 4 at one end of the pressure column 14 returns to the telescopic cavity 12, part of the lubricating oil rotates through the oil flow hole 5 and the semi-axle gear body 2 itself, and the lubricating oil flows into the step groove 8, and the lubricating oil can be continuously added to the sealed oil cavity 9 through the oil inlet pipe 10, so that the semi-axle gear body 2 can automatically add lubricating oil to the step groove 8 during the working process, which helps to reduce friction and wear, prolong the service life of the parts, and dynamically adjust the flow path and amount of the lubricating oil through the extrusion of the planetary gear body 3 on the pressure column 14 and the elastic deformation of the connecting spring 15, and the dynamic adjustment mechanism helps to ensure that appropriate lubrication can be provided under different working conditions, and the situation of excessive lubrication or insufficient lubrication is avoided.
[0023] It should be noted that in this document, such as the term "comprise", "include" or any other variant thereof is intended to cover non-exclusive inclusion, so that the process, method, article or equipment including a series of elements not only includes those elements, but also includes other elements not explicitly listed, or includes elements inherent to such process, method, article or equipment. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of additional identical elements in the process, method, article or equipment including the element.
[0024] Although the embodiments of the present application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the present application, and the scope of the present application is defined by the appended claims and their equivalents.
Claims
1. A high-precision semi-axle gear, comprising an automobile differential shell (1) and a semi-axle gear body (2) movably mounted inside the automobile differential shell (1), the inside of the automobile differential shell (1) movably mounting a planetary gear body (3), characterized in that: The inside of the half axle gear body (2) is uniformly provided with a sealed oil cavity (9), and the inside of the half axle gear body (2) is uniformly provided with an expansion cavity (12), the inner wall of the expansion cavity (12) is movably provided with a limiting moving assembly, the outer surface of the limiting moving assembly is provided with a pressing column (14), the inside of the pressing column (14) is provided with an oil flow hole (5), and the inside of the pressing column (14) is uniformly provided with an oil inlet hole (4).
2. A high-precision semi-axle gear according to claim 1, characterized in that: The limiting moving assembly comprises a connecting spring (15) and a chuck (13), the connecting spring (15) is installed at the inner wall of the expansion cavity (12), and the chuck (13) is installed at one end surface of the connecting spring (15).
3. A high-precision semi-axle gear according to claim 2, characterized in that: The outer surface of the chuck (13) is movably contacted with the inner wall of the expansion cavity (12), the inner surface of the chuck (13) is movably contacted with the outer surface of the pressing column (14), and the outer surface of the pressing column (14) is movably contacted with the inner wall of the expansion cavity (12).
4. A high-precision semi-axle gear according to claim 3, characterized in that: The inside of the half axle gear body (2) is uniformly provided with a plurality of oil inlet pipes (10), one end surface of the oil inlet pipe (10) extends to the inside of the sealed oil cavity (9), and the outer surface of the plurality of oil inlet pipes (10) is movably provided with an oil nozzle (11).
5. A high-precision semi-axle gear according to claim 4, characterized in that: The outer surface of the half axle gear body (2) is meshed with the outer surface of the planetary gear body (3).
6. A high-precision semi-axle gear according to claim 5, characterized in that: The half axle gear body (2) is uniformly provided with a step body (7), the step body (7) is provided with a step surface (6), two step bodies (7) form a step groove (8), the inner wall of the step groove (8) is movably contacted with the outer surface of the pressing column (14), and the outer surface of the planetary gear body (3) is movably contacted with the outer surface of the pressing column (14).