Self-adaptive concentricity gear meshing mechanism

Abstract

The gear meshing mechanism comprises a support assembly, a sliding assembly, a large gear assembly and a small gear driving assembly, the sliding assembly comprises an elastic telescopic sub-assembly and a sliding sub-assembly, one end of the elastic telescopic sub-assembly is hinged to the support assembly, and the other end of the elastic telescopic sub-assembly is hinged to the small gear driving assembly. The other end of the elastic telescopic sub-assembly is hinged to the sliding sub-assembly. A gear ring is arranged on the inner side of the large gear assembly, the small gear driving assembly is provided with a small gear, and the small gear is in meshing driving connection with the gear ring. The pinion driving assembly is mounted on the sliding sub-assembly; when the small gear drives the large gear assembly to rotate, the elastic telescopic sub-assembly adjusts the meshing center distance and posture of the small gear and the gear ring in a self-adaptive mode, and the technical scheme solves the problems that due to concentricity errors of a gear transmission system, gear abrasion is aggravated, transmission precision is reduced, and the service life of the gear transmission system is prolonged. And the performance and the service life of the whole system are influenced.

Description

Technical Field

[0001] This utility model relates to gear transmission technology, and more particularly to a gear meshing mechanism with adaptive concentricity. Background Technology

[0002] In gear transmissions, meshing accuracy is crucial. Deviations in gear meshing can lead to reduced transmission efficiency, increased wear, and even malfunctions. Traditional gear meshing mechanisms often struggle to completely eliminate meshing deviations because, during actual operation, gears can be affected by various factors such as temperature, load, and vibration. These factors can cause minute deformations or displacements in the gears, thus impacting meshing accuracy.

[0003] The concentricity of gear meshing has a significant impact on the performance of gear systems. When concentricity errors exist, the meshing gears will be subjected to uneven forces, leading to accelerated gear wear, reduced transmission accuracy, and consequently affecting the performance and lifespan of the entire system. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this invention is to propose an adaptive concentricity gear meshing mechanism, which solves the problem that the concentricity error in gear transmission systems leads to increased gear wear and decreased transmission accuracy, thereby affecting the performance and lifespan of the entire system.

[0005] To achieve this objective, the present invention adopts the following technical solution: an adaptive concentricity gear meshing mechanism, comprising a support assembly, a sliding assembly, a large gear assembly and a small gear drive assembly, wherein the support assembly is disposed within the large gear assembly, and the support assembly is used to support the sliding assembly and the small gear drive assembly;

[0006] The sliding assembly includes an elastic telescopic sub-assembly and a sliding sub-assembly. One end of the elastic telescopic sub-assembly is fixedly connected to the bracket assembly, and the other end of the elastic telescopic sub-assembly is hinged to the sliding sub-assembly.

[0007] The large gear assembly has a gear ring on its inner side, and the small gear drive assembly has a small gear, which meshes and drives the gear ring.

[0008] The pinion drive assembly is mounted on the sliding sub-assembly;

[0009] When the pinion drives the large gear assembly to rotate, the elastic telescopic sub-assembly adaptively adjusts the center distance and orientation of the meshing of the pinion and the gear ring.

[0010] Furthermore, the elastic telescopic sub-assembly includes a telescopic rod and a spring. One end of the telescopic rod is hinged to the bracket assembly, and the other end of the telescopic rod is hinged to the sliding sub-assembly. The spring is sleeved on the outside of the telescopic rod, and the front end of the spring is fixedly connected to the front end of the telescopic rod, and the end of the spring is fixedly connected to the end of the telescopic rod.

[0011] Furthermore, the sliding sub-assembly includes two linear guides, two sliders, and a sliding table;

[0012] The two linear guide rails are fixed side by side to the bracket assembly;

[0013] Each of the sliders is movably mounted above a corresponding linear guide rail;

[0014] The slide table is fixedly installed above the two sliders;

[0015] The slide table can move along the linear guide rail, and the pinion drive assembly is fixed above the slide table.

[0016] Furthermore, the large gear assembly includes a groove located on the inner side of the gear ring;

[0017] The sliding sub-assembly further includes a roller located between the support and the groove, and the roller is fixedly connected to one side of the support;

[0018] The roller abuts against the groove under the action of the elastic telescopic sub-assembly and rolls along the groove.

[0019] Furthermore, the pinion drive assembly includes a motor and a reducer, wherein the power output end of the motor is connected to the power input end of the reducer, and the reducer is mounted on the slide table.

[0020] Furthermore, the pinion drive assembly also includes a support, the reducer is mounted on the support, and the support is mounted on the slide.

[0021] Furthermore, the support assembly includes a support body and a plate. The support body is radially disposed within the large gear assembly, the plate is mounted above the support body, and the linear guide rail is arranged parallel to the plate and mounted above the plate.

[0022] Furthermore, the main body of the bracket is provided with multiple sets of bolts, and the main body of the bracket can be fixed in the horizontal and vertical planes by the bolt sets.

[0023] Furthermore, the large gear assembly also includes a gear disk, which is sleeved on the outside of the gear ring, and the inner edge of the gear disk is fixed to the outer edge of the gear ring.

[0024] Furthermore, the gear disk includes an outer gear ring, which is disposed on the outer edge of the gear disk.

[0025] The technical solution provided by this utility model can include the following beneficial effects: the pinion drive assembly drives the gear ring to rotate. When the meshing clearance between the pinion and the gear ring is too large, the elastic telescopic sub-assembly pushes the sliding sub-assembly against the large gear assembly, so that the pinion and the gear ring maintain a reasonable meshing distance. Through the elastic telescopic sub-assembly and the sliding sub-assembly, the meshing of the pinion drive assembly and the large gear assembly is changed from a fixed center distance to a floating type, realizing the adaptive adjustment of the gear meshing center distance and posture, thereby improving the tolerance for gear manufacturing and assembly errors, helping to improve transmission efficiency and reduce tooth surface wear. This technical solution solves the problem that the gear transmission system suffers from increased gear wear and decreased transmission accuracy due to concentricity errors, which in turn affects the performance and life of the entire system. Attached Figure Description

[0026] 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.

[0027] Figure 1 This is a schematic diagram of the gear meshing mechanism in this utility model;

[0028] Figure 2 This is a schematic diagram of the sliding component in this utility model;

[0029] Figure 3 yes Figure 2 A magnified view of a portion of region A in the middle;

[0030] Figure 4 This is a schematic diagram of the structure of the small gear drive assembly in this utility model;

[0031] Figure 5 This is a partially enlarged view of the large gear assembly in this utility model.

[0032] The components include: bracket assembly 1, bracket body 11, plate 12, sliding assembly 2, elastic telescopic sub-assembly 21, telescopic rod 211, spring 212, sliding sub-assembly 22, linear guide rail 221, slider 222, slide table 223, roller 224, large gear assembly 3, gear ring 31, groove 311, gear plate 32, external gear ring 321, small gear drive assembly 4, small gear 41, motor 42, reducer 43, and support 44. Detailed Implementation

[0033] 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 scope of protection of the present utility model.

[0034] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The following is in conjunction with the appendix Figure 1-5 The technical solution of this utility model will be further illustrated through specific implementation methods.

[0037] A preferred embodiment of this application provides an adaptive concentricity gear meshing mechanism, characterized in that it includes a support assembly 1, a sliding assembly 2, a large gear assembly 3, and a small gear drive assembly 4, wherein the support assembly 1 is disposed within the large gear assembly 3, and the support assembly 1 is used to support the sliding assembly 2 and the small gear drive assembly 4;

[0038] The sliding component 2 includes an elastic telescopic sub-component 21 and a sliding sub-component 22. One end of the elastic telescopic sub-component 21 is fixedly connected to the bracket component 1, and the other end of the elastic telescopic sub-component 21 is hinged to the sliding sub-component 22.

[0039] The large gear assembly 3 has a gear ring 31 on its inner side, and the small gear drive assembly 4 has a small gear 41. The small gear 41 meshes and drives the gear ring 31.

[0040] The pinion drive assembly 4 is mounted on the sliding sub-assembly 22;

[0041] When the pinion 41 drives the large gear assembly 3 to rotate, the elastic telescopic sub-assembly 21 adaptively adjusts the center distance and orientation of the meshing of the pinion 41 and the gear ring 31.

[0042] Specifically, the adaptive concentricity gear meshing mechanism is a mechanism that can automatically adjust to ensure gear meshing accuracy. The pinion drive assembly 4 drives the gear ring 31 to rotate. When the meshing clearance between the pinion 41 and the gear ring 31 is too large, the elastic telescopic sub-assembly 21 pushes the sliding sub-assembly 22 to abut against the large gear assembly 3, so that the pinion 41 and the gear ring 31 maintain a reasonable meshing distance. Through the elastic telescopic sub-assembly 21 and the sliding sub-assembly 22, the gear meshing of the pinion drive assembly 4 and the large gear assembly 3 is changed from a fixed center distance to a floating type, realizing the adaptive adjustment of the gear meshing center distance and posture. This improves the tolerance for gear manufacturing and assembly errors, helps to improve transmission efficiency and reduce tooth surface wear. This technical solution solves the problem that the existence of concentricity error in the gear transmission system leads to increased gear wear and decreased transmission accuracy, which in turn affects the performance and life of the entire system.

[0043] In an optional embodiment, the elastic telescopic sub-assembly 21 includes a telescopic rod 211 and a spring 212. One end of the telescopic rod 211 is fixedly connected to the bracket assembly 1, and the other end of the telescopic rod 211 is hinged to the sliding sub-assembly 22. The spring 212 is sleeved on the outside of the telescopic rod 211, and the front end of the spring 212 is fixedly connected to the front end of the telescopic rod 211, and the end of the spring 212 is fixedly connected to the end of the telescopic rod 211.

[0044] Specifically, due to the combination of the spring 212 and the telescopic rod 211, and the characteristics of the spring 212, the elastic telescopic sub-assembly 21 can automatically adjust the length of the telescopic rod 211 according to the distance between the pinion 41 and the gear ring 31: when the distance between the pinion 41 and the gear ring 31 is too large, that is, when the pinion 41 is too close to the support assembly 1, the pinion 41 will compress the length of the telescopic rod 211. When the length of the telescopic rod 211 shortens, it will compress the spring 211. Due to its own characteristics, the spring 211 will release potential energy, causing the length of the telescopic rod 211 to extend again, thereby keeping the distance between the pinion 41 and the gear ring 31 within a reasonable range. Furthermore, in order to further improve the stability of the adaptive concentricity gear meshing mechanism, there are two elastic telescopic sub-assemblies 21, and the two elastic telescopic sub-assemblies 21 are arranged in parallel.

[0045] In an optional embodiment, the sliding sub-assembly 22 includes two linear guides 221, two sliders 222, and a slide table 223;

[0046] The two linear guide rails 221 are fixed side by side to the bracket assembly 22;

[0047] Each of the sliders 222 is movably mounted above a corresponding linear guide rail 221;

[0048] The slide table 223 is fixedly installed above the two sliders 222;

[0049] The slide 223 can move along the linear guide rail 221, and the pinion drive assembly 4 is fixed above the slide 223.

[0050] Specifically, each slider 222 and its corresponding linear guide rail form a moving sub-mechanism; two moving sub-mechanisms are fixed side by side to the bracket assembly 22, and the slide table 223 is fixedly installed above the two moving sub-mechanisms. The two moving sub-mechanisms can drive the slide table 223 to move linearly. Since the pinion drive assembly 4 is fixedly installed on the slide table 223, the slide table 223 drives the pinion 41 to move smoothly when it moves, which helps the elastic telescopic sub-assembly 21 to adaptively adjust the center distance and posture of the meshing of the pinion 41 and the gear ring 31.

[0051] In an optional embodiment, the gear ring 31 includes a groove 311, which is disposed on the inner side of the gear ring 31;

[0052] The sliding sub-assembly 22 further includes a roller 224, which is located between the support 44 and the groove 311, and the roller 224 is fixedly connected to one side of the support 44.

[0053] The roller abuts against the groove 311 under the action of the elastic telescopic sub-assembly 21 and rolls along the groove 311.

[0054] Specifically, the elastic telescopic sub-assembly 21 pushes the sliding sub-assembly 22, the pinion 41 is installed on the sliding sub-assembly 22, the sliding sub-assembly 22 is provided with a roller 224, the roller 224 abuts against the groove 311, the roller 224 can prevent the pinion 41 from excessively squeezing the gear ring 31, thereby avoiding large stress concentration at the meshing connection of the pinion 41 and the gear ring 31, causing gear wear, and extending the service life of the gear meshing mechanism.

[0055] In an optional embodiment, the pinion drive assembly 4 includes a motor 42 and a reducer 43, wherein the power output end of the motor 42 is connected to the power input end of the reducer 43, and the reducer 43 is mounted on the slide table 223.

[0056] Specifically, the power output end of the motor 42 is connected to the power input end of the reducer 43, reducing intermediate transmission links and thus improving transmission efficiency. The reducer 43 is directly mounted on the slide table 223, making the structure of the pinion drive assembly 4 more compact and reducing the space requirement of the pinion drive assembly 4.

[0057] In an optional embodiment, the pinion drive assembly 4 further includes a support 44, the reducer 43 is mounted on the support 44, and the support 44 is mounted on the slide table 223.

[0058] Specifically, the support 44 serves to support and fix the reducer 43, allowing it to be stably installed on the slide table 223, reducing the risk of loosening or damage caused by vibration or impact, and also simplifying the installation process.

[0059] In an optional embodiment, the support assembly 1 includes a support body 11 and a plate 12. The support body 11 is radially disposed within the large gear assembly 3. The plate 12 is mounted above the support body 11. The linear guide rail 221 is arranged parallel to the plate 12 and is mounted above the plate 12.

[0060] Specifically, the bracket body 11 is radially embedded inside the large gear assembly 3, which helps to enhance the overall stability and structural compactness. The plate 12 is horizontally installed above the bracket body 11 to ensure the stability of the installation and the load-bearing capacity. Furthermore, the linear guide rail 221 is installed parallel to the plate 12, which not only ensures the accuracy and stability of the linear guide rail 221, but also enables the entire system to move precisely and stably along the specified direction.

[0061] In an optional embodiment, the bracket body 11 is provided with multiple sets of bolts, and the bracket body 11 can be fixed in the horizontal and vertical planes by the bolt sets.

[0062] Specifically, since the bolt groups can be fixed on both horizontal and vertical planes, the bracket body 11 can adapt to different installation environments and conditions. Furthermore, by using multiple bolt groups, the load can be distributed to multiple fixing points, effectively improving the load-bearing capacity of the bracket body 11.

[0063] In an optional embodiment, the large gear assembly 3 further includes a gear disk 32, which is sleeved on the outside of the gear ring 31, and the inner edge of the gear disk 32 is fixed to the outer edge of the gear ring 31.

[0064] Specifically, the gear disc 32 is sleeved on the outside of the gear ring 31. This structure allows the gear disc 32 to tightly wrap around the gear ring 31, forming an integral large gear assembly. The large gear assembly has high load-bearing capacity and transmission efficiency, and is suitable for the transmission system of heavy machinery equipment such as the gear transmission mechanism of excavators, loaders, cranes, etc., and can be applied to industrial production lines and energy equipment.

[0065] In an optional embodiment, the toothed disk 32 includes an outer toothed ring 321, which is disposed on the outer edge of the toothed disk 32.

[0066] Specifically, the external gear ring 321 is located on the outer edge of the gear disk 32. This arrangement enables the gear disk 32 to perform effective meshing transmission with other gears through the external gear ring 321.

[0067] The embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A gear meshing mechanism with adaptive concentricity, characterized in that, It includes a support assembly, a sliding assembly, a large gear assembly, and a small gear drive assembly. The support assembly is disposed within the large gear assembly and is used to support the sliding assembly and the small gear drive assembly. The sliding assembly includes an elastic telescopic sub-assembly and a sliding sub-assembly. One end of the elastic telescopic sub-assembly is fixedly connected to the bracket assembly, and the other end of the elastic telescopic sub-assembly is hinged to the sliding sub-assembly. The large gear assembly has a gear ring on its inner side, and the small gear drive assembly has a small gear, which meshes and drives the gear ring. The pinion drive assembly is mounted on the sliding sub-assembly; When the pinion drives the large gear assembly to rotate, the elastic telescopic sub-assembly adaptively adjusts the center distance and orientation of the meshing of the pinion and the gear ring.

2. The adaptive concentricity gear meshing mechanism according to claim 1, characterized in that, The elastic telescopic sub-assembly includes a telescopic rod and a spring. One end of the telescopic rod is fixedly connected to the bracket assembly, and the other end of the telescopic rod is hinged to the sliding sub-assembly. The spring is sleeved on the outside of the telescopic rod, and the front end of the spring is fixedly connected to the front end of the telescopic rod, and the end of the spring is fixedly connected to the end of the telescopic rod.

3. The adaptive concentricity gear meshing mechanism according to claim 1, characterized in that, The sliding sub-assembly includes two linear guides, two sliders, and a sliding table; The two linear guide rails are fixed side by side to the bracket assembly; Each of the sliders is movably mounted above a corresponding linear guide rail; The slide table is fixedly installed above the two sliders; The slide table can move along the linear guide rail, and the pinion drive assembly is fixed above the slide table.

4. The adaptive concentricity gear meshing mechanism according to claim 3, characterized in that, The pinion drive assembly includes a motor and a reducer. The power output end of the motor is connected to the power input end of the reducer, and the reducer is mounted on the slide table.

5. The adaptive concentricity gear meshing mechanism according to claim 4, characterized in that, The pinion drive assembly also includes a support, the reducer is mounted on the support, and the support is mounted on the slide.

6. The adaptive concentricity gear meshing mechanism according to claim 5, characterized in that, The large gear assembly includes a groove located on the inner side of the gear ring; The sliding sub-assembly further includes a roller located between the support and the groove, and the roller is fixedly connected to one side of the support; The roller abuts against the groove under the action of the elastic telescopic sub-assembly and rolls along the groove.

7. The adaptive concentricity gear meshing mechanism according to claim 3, characterized in that, The support assembly includes a support body and a plate. The support body is radially disposed within the large gear assembly. The plate is mounted above the support body. The linear guide rail is arranged parallel to the plate and is mounted above the plate.

8. The adaptive concentricity gear meshing mechanism according to claim 7, characterized in that, The main body of the support is provided with multiple sets of bolts, and the main body of the support is fixed in the horizontal and vertical planes by the bolts.

9. The adaptive concentricity gear meshing mechanism according to claim 1, characterized in that, The large gear assembly also includes a gear disk, which is sleeved on the outside of the gear ring, and the inner edge of the gear disk is fixed to the outer edge of the gear ring.

10. The adaptive concentricity gear meshing mechanism according to claim 9, characterized in that, The gear disk includes an outer gear ring, which is located on the outer edge of the gear disk.

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