Automobile gear shaft with good durability

Abstract

The utility model discloses an automobile gear shaft with good durability, particularly relates to the technical field of automobile gears, and comprises a shaft rod, and gear transmission connection protection devices are arranged at the upper end and the lower end of the shaft rod; the gear transmission connection protection device comprises a connection assembly and a lubricating protection assembly. Compared with the prior art, according to the automobile gear shaft with the good durability, when the rotating gear shaft block is used, oil injection work can be conducted through the oil injection hole, after oil injection through the oil injection hole is completed, oil discharge work is conducted through the oil discharge hole set formed in the lower end of the oil throwing column, and lubricating oil enters the oil inlet lubricating groove; lubricating oil filling work can be carried out on the interior of the oil inlet lubricating groove; oil injection protection work is carried out on the oil inlet lubrication grooves through simple timing filling work, and the problem that the service life of the whole assembly is shortened due to the fact that the two sets of rotating gear shaft blocks rotate in a meshed mode for a long time, the rotating gear shaft blocks lose lubrication, abrasion of the rotating gear shaft blocks is aggravated is effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of automotive gears. More specifically, the utility model relates to an automotive gear shaft with good durability. Background Art

[0002] At present, the automotive steering gear is an important part of the automotive steering system. By controlling the steering rack through the gear on the shaft body, the rotation of the steering wheel is converted into the swing of the steering swing rod, and finally the wheels are deflected.

[0003] The existing patent number is: CN214001800U, an automotive gear shaft, which relates to the technical field of gear shafts. Its technical solution mainly includes a shaft body, a connecting shaft connected to the power input end of the shaft body, and a fixed shaft connected to the gear of the power output end. The fixed shaft is coaxially connected to the connecting shaft. An outer side of the connection part between the connecting shaft and the fixed shaft is further sleeved with a connecting piece for clamping and fixing the connecting shaft and the fixed shaft. Raised parts are arranged on the outer walls of the connecting shaft and the fixed shaft, and inner grooves for embedding the raised parts are arranged on the inner side wall of the connecting piece. By utilizing the interaction between the connecting shaft and the inner grooves on the fixed shaft connecting piece, the connection stability between the connecting shaft and the fixed shaft is maintained even when the clamping degree of the connecting piece is weakened. This application has the effect of improving the connection stability between the connecting shaft and the fixed shaft; this device solves the problem of the stable installation of the automotive gear shaft. However, the rotating gears internally arranged in the automotive gear shaft mesh and rotate for a long time without regularly adding lubricating oil for protection. There is a problem that the rotating gear shaft block loses lubrication due to long-term meshing rotation, resulting in increased wear of the rotating gear shaft block and reduced service life of the entire assembly. Summary of the Utility Model

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides an automotive gear shaft with good durability to solve the problems raised in the above background art.

[0005] To achieve the above object, the utility model provides the following technical solution: an automotive gear shaft with good durability, including a shaft rod, and gear transmission connection protection devices are arranged at both the upper and lower ends of the shaft rod; the gear transmission connection protection devices include: a connection component and a lubrication protection component. The lubrication protection component is arranged at one end of the shaft rod, and the connection component is arranged at the other end of the shaft rod.

[0006] In a preferred embodiment, the connection component includes: a first installation connection column, a second installation connection column, and an assembly sleeve. The lower end of the first installation connection column is installed on the upper end of the second installation connection column. There are two groups of shaft rods, and one ends of the two groups of shaft rods are respectively installed on the other ends of the first installation connection column and the second installation connection column. The assembly sleeve is detachably installed on the outer wall of the shaft rod.

[0007] In a preferred embodiment, the lubrication protection assembly includes: a rotating gear shaft block, an oil inlet into the lubrication groove, a central stabilizing column, an oil injection hole, and an oil delivery column. The oil injection hole is opened on the outer wall of the side of the oil delivery column.

[0008] In a preferred embodiment, an oil discharge hole group is provided at the lower end of the oil delivery column, and multiple groups of oil discharge holes are opened in the oil discharge hole group.

[0009] In a preferred embodiment, the lower end of the central stabilizing column is installed inside the upper end of the rotating gear shaft block, and the lower end of the oil delivery column is installed at the upper end of the central stabilizing column.

[0010] In a preferred embodiment, the diameters of the upper and lower ends of the central stabilizing column are smaller than those of the upper and lower ends of the oil delivery column, and the upper end of the oil delivery column is installed at one end of the shaft rod.

[0011] In a preferred embodiment, two sets of the lubrication protection assemblies are provided, and the two sets of the lubrication protection assemblies are respectively installed at one ends of two sets of shaft rods. Multiple groups of the oil inlets into the lubrication grooves are opened, and the multiple groups of the oil inlets into the lubrication grooves are respectively opened on the outer wall of the rotating gear shaft block.

[0012] The technical effects and advantages of the present utility model:

[0013] For an automotive gear shaft with good durability, compared with the prior art, during use, the rotating gear shaft block can be lubricated through the oil injection hole. After the oil injection through the oil injection hole is completed, the oil discharge work is carried out through the oil discharge hole group provided at the lower end of the oil delivery column. The lubricating oil enters into the interior of the oil inlet into the lubrication groove, and the interior of the oil inlet into the lubrication groove can be filled with the lubricating oil. Through simple timed filling work in the interior of the oil inlet into the lubrication groove, the oil injection and protection work for the oil inlet into the lubrication groove is realized, effectively avoiding the problem that the two rotating gear shaft blocks lose lubrication due to long-term meshing rotation, resulting in increased wear of the rotating gear shaft block and reduced service life of the entire assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0015] Figure 2 It is a schematic diagram of the gear transmission connection protection device structure of the present utility model.

[0016] Figure 3 It is a schematic diagram of the connection assembly structure of the present utility model.

[0017] Figure 4 It is a schematic diagram of the lubrication protection assembly structure of the present utility model.

[0018] The reference numerals are: 1, shaft rod; 2, gear transmission connection protection device; 21, connection component; 211, first installation connection column; 212, second installation connection column; 213, assembly sleeve; 22, lubrication protection component; 221, central stabilizing column; 222, oil injection column; 223, oil injection hole; 224, oil inlet into lubrication groove; 225, rotating gear shaft block. Detailed implementation manners

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] As shown in the Figures 1-4 accompanying drawings, the present invention provides an automotive gear shaft with good durability, including a shaft rod 1, and gear transmission connection protection devices 2 are arranged at the upper and lower ends of the shaft rod 1; the gear transmission connection protection device 2 includes: a connection component 21 and a lubrication protection component 22, the lubrication protection component 22 is arranged at one end of the shaft rod 1, and the connection component 21 is arranged at the other end of the shaft rod 1.

[0021] The connection component 21 includes: a first installation connection column 211, a second installation connection column 212 and an assembly sleeve 213. The lower end of the first installation connection column 211 is installed on the upper end of the second installation connection column 212. There are two groups of shaft rods 1, and one ends of the two groups of shaft rods 1 are respectively installed on the other ends of the first installation connection column 211 and the second installation connection column 212. The assembly sleeve 213 is detachably installed on the outer wall of the shaft rod 1.

[0022] The lubrication protection component 22 includes: a rotating gear shaft block 225, an oil inlet into lubrication groove 224, a central stabilizing column 221, an oil injection hole 223 and an oil injection column 222. The oil injection hole 223 is opened on the outer wall of the side of the oil injection column 222. A group of oil discharge holes is arranged at the lower end of the oil injection column 222, and multiple groups of oil discharge holes are opened in the group of oil discharge holes. The lower end of the central stabilizing column 221 is installed inside the upper end of the rotating gear shaft block 225. The lower end of the oil injection column 222 is installed on the upper end of the central stabilizing column 221. The diameters of the upper and lower ends of the central stabilizing column 221 are smaller than the diameters of the upper and lower ends of the oil injection column 222. The upper end of the oil injection column 222 is installed at one end of the shaft rod 1. There are two groups of lubrication protection components 22, and the two groups of lubrication protection components 22 are respectively installed at one ends of the two groups of shaft rods 1. Multiple groups of oil inlet into lubrication grooves 224 are opened, and the multiple groups of oil inlet into lubrication grooves 224 are respectively opened on the outer wall of the rotating gear shaft block 225.

[0023] The specific implementation method is as follows: When using the present utility model, first install the two sets of shaft rods 1 that need to be installed. When installing the two sets of shaft rods 1, the first installation connection column 211 and the second installation connection column 212 can be docked. After the docking and assembly of the first installation connection column 211 and the second installation connection column 212 are completed, the assembly sleeve 213 is assembled on the outer walls of the two end shaft rods 1. When the shaft rods 1 are assembled, the rotating gear shaft block 225 provided inside the lubrication protection assembly 22. When the rotating gear shaft block 225 is in use, oil injection can be carried out through the oil injection hole 223. After the oil injection hole 223 is filled with oil, oil discharge is carried out through the oil discharge hole group provided at the lower end of the oil injection column 222. The lubricating oil enters the oil inlet lubrication groove 224, and the oil inlet lubrication groove 224 can be filled with lubricating oil. The oil inlet lubrication groove 224 is filled with oil regularly to effectively avoid the problem that the two rotating gear shaft blocks 225 are meshed and rotated for a long time, resulting in the loss of lubrication of the rotating gear shaft blocks 225, the aggravation of wear of the rotating gear shaft blocks 225, and the reduction of the service life of the entire assembly.

[0024] The working principle of the present utility model: When using the present utility model, first install the two sets of shaft rods 1 that need to be installed. When installing the two sets of shaft rods 1, the first installation connection column 211 and the second installation connection column 212 can be docked. After the docking and assembly of the first installation connection column 211 and the second installation connection column 212 are completed, the assembly sleeve 213 is assembled on the outer walls of the two end shaft rods 1. When the shaft rods 1 are assembled, the rotating gear shaft block 225 provided inside the lubrication protection assembly 22. When the rotating gear shaft block 225 is in use, oil injection can be carried out through the oil injection hole 223. After the oil injection hole 223 is filled with oil, oil discharge is carried out through the oil discharge hole group provided at the lower end of the oil injection column 222. The lubricating oil enters the oil inlet lubrication groove 224, and the oil inlet lubrication groove 224 can be filled with lubricating oil.

[0025] Finally, several points should be noted: First, in the description of the present application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, or the internal communication of two components, and can be directly connected. "Upper", "lower", "left", "right", etc. are only used to represent relative position relationships. When the absolute position of the described object changes, the relative position relationship may change;

[0026] Second: In the attached drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. Other structures can refer to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0027] Finally: The above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A durable automobile gear shaft, comprising a shaft rod (1), characterized in that: Gear transmission connection protection devices (2) are provided at the upper and lower ends of the shaft rod (1); The gear transmission connection protection device (2) comprises: a connection component (21) and a lubrication protection component (22), wherein the lubrication protection component (22) is arranged at one end of the shaft (1), and the connection component (21) is arranged at the other end of the shaft (1).

2. The durable automotive gear shaft according to claim 1, characterized in that: The connection assembly (21) comprises: a first installation connection column (211), a second installation connection column (212) and an assembly sleeve (213); the lower end of the first installation connection column (211) is mounted on the upper end of the second installation connection column (212); the shaft rod (1) is provided in two groups, and one end of the two groups of shaft rods (1) is respectively mounted on the first installation connection column (211) and the other end of the second installation connection column (212); and the assembly sleeve (213) is detachably mounted on the outer wall of the shaft rod (1).

3. The durable automobile gear shaft according to claim 2, characterized in that: The lubrication protection component (22) comprises: a rotating gear shaft block (225), an oil inlet lubrication groove (224), a central stabilizing column (221), an oil injection hole (223) and an oil injection column (222); the oil injection hole (223) is provided on the side outer wall of the oil injection column (222).

4. The durable automobile gear shaft according to claim 3, characterized in that: An oil drainage hole group is provided at the lower end of the oil injection column (222), and a plurality of groups of oil drainage holes are provided in the oil drainage hole group.

5. The durable automobile gear shaft according to claim 3, characterized in that: The lower end of the central stabilizing column (221) is mounted inside the upper end of the rotating gear shaft block (225), and the lower end of the oil injection column (222) is mounted on the upper end of the central stabilizing column (221).

6. The durable automobile gear shaft according to claim 3, characterized in that: The diameters of the upper and lower ends of the central stabilizing column (221) are smaller than the diameters of the upper and lower ends of the oil injection column (222), and the upper end of the oil injection column (222) is mounted on one end of the shaft rod (1).

7. The durable automobile gear shaft according to claim 3, characterized in that: The lubrication protection components (22) are provided in two groups, and the two groups of lubrication protection components (22) are respectively installed on one end of the two groups of shafts (1), and the oil inlet lubrication grooves (224) are provided in multiple groups, and the multiple groups of oil inlet lubrication grooves (224) are respectively provided on the outer wall of the rotating gear shaft block (225).

Images