Combined gear shaft

Abstract

The utility model provides a combined gear shaft, and belongs to the technical field of gear shafts. The problems that an existing gear shaft is inconvenient to replace and high in replacement cost due to abrasion are solved. The combined gear shaft comprises a main shaft, the main shaft is provided with a replacement assembly which is connected with the main shaft, can be detached and replaced and can reduce the replacement cost, and the replacement assembly is composed of a meshing unit connected with other gears in a meshing mode and a connecting unit enabling the main shaft to be connected with the meshing unit. The utility model has the advantages that the replacement is convenient, and the replacement cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of gear shafts and relates to a combined gear shaft. Background Art

[0002] A gear shaft refers to a mechanical part that supports a rotating part and rotates with it to transmit motion, torque or bending moment. It is generally a metal round rod, and each section can have different diameters. The parts that perform rotary motion in the machine are mounted on the shaft. Existing gear shafts are generally provided with a toothed portion that is integrally provided with it, but in actual use, due to meshing wear, it is easy to affect the subsequent use effect, and its replacement generally requires an overall replacement, resulting in high replacement costs. At the same time, its use function is relatively single, and it cannot meet a variety of use requirements. Summary of the invention

[0003] The purpose of the utility model is to provide a gear shaft which is easy to replace in view of the above problems existing in the prior art.

[0004] The purpose of the utility model can be achieved through the following technical solutions: a combined gear shaft, including a main shaft, characterized in that the main shaft is provided with a replacement component connected to it and can be disassembled and replaced to reduce the replacement cost, and the replacement component is composed of a meshing unit meshingly connected with other gears and a connecting unit connecting the main shaft with the meshing unit.

[0005] In the above-mentioned combined gear shaft, the connecting unit is a connecting ring sleeved on the main shaft, and the inner wall of the connecting ring is provided with a convex ring part 1 which protrudes radially outward, and the outer peripheral wall of the main shaft is provided with a convex ring part 2 which protrudes radially outward and abuts against the convex ring part 1, and the convex ring part 1 and the convex ring part 2 are connected by a plurality of studs arranged at intervals along their circumferential direction.

[0006] In the above-mentioned combined gear shaft, the meshing unit is composed of a meshing ring that is sleeved on and connected to a connecting ring and a plurality of external teeth that are arranged on the meshing ring and along its circumferential direction. An annular connecting plate is arranged between the meshing ring and the connecting ring to facilitate their assembly and to improve the heat dissipation effect. The thickness of the annular connecting plate is smaller than the thickness of the meshing ring and the connecting ring, and the annular connecting plate is provided with a plurality of weight-reducing holes that are arranged along its circumferential direction and are used to reduce its weight.

[0007] In the above-mentioned combined gear shaft, the connecting ring, meshing ring and annular connecting plate can all be composed of two semi-ring bodies spliced ​​together. The connecting ring is located at the two end faces of the joint of the two semi-ring bodies and is provided with a loading and unloading unit connected to it and convenient for loading and unloading. The loading and unloading unit is composed of two loading and unloading blocks and a plurality of connecting studs. The two loading and unloading blocks are respectively arranged on the corresponding semi-ring bodies and connected thereto, and the two loading and unloading blocks are provided with a plurality of threaded holes for installing the connecting studs.

[0008] Compared with the prior art, this combined gear shaft has the following advantages:

[0009] 1. The main shaft is provided with a replacement component which is connected to the main shaft and can be disassembled and replaced to reduce the replacement cost. The replacement component is composed of a meshing unit meshing with other gears and a connecting unit connecting the main shaft with the meshing unit. The above structure is arranged to facilitate its disassembly and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the three-dimensional structure of the combined gear shaft.

[0011] In the figure, 1, main shaft; 2, connecting ring; 3, convex ring part 1; 4, convex ring part 2; 5, meshing ring; 6, external tooth part; 7, annular connecting plate; 8, weight reduction hole; 9, loading and unloading block; 10, connecting stud. DETAILED DESCRIPTION

[0012] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0013] like Figure 1 As shown, the combined gear shaft includes a main shaft, and a replacement component connected to the main shaft is provided on the main shaft, which can be disassembled and replaced to reduce the replacement cost. The replacement component is composed of a meshing unit meshing with other gears and a connecting unit that connects the main shaft to the meshing unit. The connecting unit is a connecting ring sleeved on the main shaft, and a convex ring part 1 protruding radially outward is provided on the inner wall of the connecting ring, and a convex ring part 2 protruding radially outward and mating with the convex ring part 1 is provided on the outer peripheral wall of the main shaft. Part one and convex ring part two are connected by a plurality of studs arranged at intervals along their circumferential direction. The meshing unit consists of a meshing ring sleeved on and connected to the connecting ring and a plurality of external teeth arranged on the meshing ring and arranged along the circumferential direction. An annular connecting plate is arranged between the meshing ring and the connecting ring to facilitate their assembly and to improve the heat dissipation effect. The thickness of the annular connecting plate is less than that of the meshing ring and the connecting ring, and the annular connecting plate is provided with a plurality of weight-reducing holes arranged along its circumferential direction and used to reduce its weight.

[0014] To elaborate further, in order to facilitate disassembly and replacement, the connecting ring, the meshing ring and the annular connecting plate can all be composed of two semi-ring bodies spliced ​​together. When they are assembled by splicing, the annular connecting plate is connected to the meshing ring and the connecting ring by welding. For this purpose, a reinforcing rib that can enhance the connection strength is provided on the annular connecting plate between two adjacent weight-reducing holes. The above-mentioned connecting ring, the meshing ring and the annular connecting plate can also be connected by stud connection or clamping. The connecting ring is located at the two end surfaces of the splicing of the two semi-ring bodies, and is provided with a loading and unloading unit connected to it and convenient for loading and unloading. The loading and unloading unit consists of two loading and unloading blocks and a number of connecting studs. The two loading and unloading blocks are respectively arranged on the corresponding semi-ring bodies and connected to them, and the two loading and unloading blocks are provided with a number of threaded holes for installing the connecting studs.

[0015] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described or replace them in similar ways, but they will not deviate from the spirit of the present invention or exceed the scope defined by the appended claims.

[0016] Although the terms 1, main shaft; 2, connecting ring; 3, convex ring part 1; 4, convex ring part 2; 5, meshing ring; 6, external tooth part; 7, annular connecting plate; 8, weight-reducing hole; 9, loading and unloading block; 10, connecting stud are used more frequently in this article, the possibility of using other terms is not excluded. The use of these terms is only for more convenient description and explanation of the essence of the utility model; interpreting them as any additional restrictions is contrary to the spirit of the utility model.

Claims

1. A combined gear shaft, comprising a main shaft (1), characterized in that: The main shaft (1) is provided with a replacement component connected thereto and capable of being disassembled and replaced, thereby reducing replacement costs. The replacement component is composed of a meshing unit meshingly connected to other gears and a connecting unit connecting the main shaft (1) to the meshing unit.

2. A combined gear shaft according to claim 1, characterized in that: The connecting unit is a connecting ring (2) sleeved on the main shaft (1), the inner wall of the connecting ring (2) is provided with a convex ring portion (3) protruding radially outward, the outer peripheral wall of the main shaft (1) is provided with a convex ring portion (4) protruding radially outward and abutting against the convex ring portion (3), and the convex ring portion (3) and the convex ring portion (4) are connected by a plurality of studs arranged at intervals along their circumferential direction.

3. A combined gear shaft according to claim 2, characterized in that: The meshing unit comprises a meshing ring (5) sleeved on and connected to a connecting ring (2), and a plurality of external teeth (6) arranged on the meshing ring (5) and arranged along the circumferential direction thereof; an annular connecting plate (7) is arranged between the meshing ring (5) and the connecting ring (2) to facilitate their assembly and to improve the heat dissipation effect; the thickness of the annular connecting plate (7) is smaller than the thickness of the meshing ring (5) and the connecting ring (2); and the annular connecting plate (7) is provided with a plurality of weight-reducing holes (8) arranged along the circumferential direction thereof and used to reduce its weight.

4. A combined gear shaft according to claim 3, characterized in that: The connecting ring (2), the meshing ring (5) and the annular connecting plate (7) can all be formed by splicing two semi-ring bodies together. The connecting ring (2) is provided with a loading and unloading unit connected to the semi-ring body and convenient for loading and unloading on both end surfaces of the connecting ring (2) located at the splicing point of the two semi-ring bodies. The loading and unloading unit is composed of two loading and unloading blocks (9) and a plurality of connecting studs (10). The two loading and unloading blocks (9) are respectively arranged on the corresponding semi-ring body and connected thereto. The two loading and unloading blocks (9) are provided with a plurality of threaded holes for installing the connecting studs (10).

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