Gear shaft

Abstract

The utility model provides a gear shaft, and belongs to the technical field of gears. The problem that an existing gear shaft is inconvenient to replace is solved. The gear shaft comprises a main shaft and a gear part arranged on the main shaft, the main shaft is provided with a rotating unit which is connected with the main shaft and used for installing the gear part and facilitating rotation of the gear part, the main shaft is provided with a limiting unit which is connected with the main shaft and used for limiting the position of the rotating unit, and the gear part is composed of a left tooth piece and a right tooth piece. The left tooth piece and the right tooth piece are connected through a plurality of double-end rivets arranged in the circumferential direction of the gear part. The utility model has the advantage of being convenient to replace.

Description

Technical Field

[0001] The utility model belongs to the technical field of gears and relates to a 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 make rotating motion in the machine are installed on the shaft. Existing general gear shafts are generally provided with a tooth 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 a complete replacement, resulting in high replacement costs. At the same time, its use function is single, so it cannot meet a variety of use needs. Summary of the invention

[0003] The purpose of the utility model is to provide a gear shaft which is easy to replace and has various functions 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 gear shaft, including a main shaft and a gear part arranged on the main shaft, characterized in that the main shaft is provided with a rotating unit connected to it, for the gear part to be installed and to facilitate the rotation of the gear part, the main shaft is provided with a limiting unit connected to it and used to limit the position of the rotating unit, the gear part is composed of a left tooth plate and a right tooth plate, and the left tooth plate and the right tooth plate are connected by a plurality of double-headed rivets arranged along the circumferential direction of the gear part.

[0005] In the above-mentioned gear shaft, the limiting unit is a limiting ring connected to the main shaft, and both end faces of the limiting ring are provided with axial inward recesses to form internal tooth grooves with internal teeth, and the outer peripheral wall of the limiting ring is provided with a mounting convex ring that radially protrudes outward and is used to install the rotating unit.

[0006] In the above-mentioned gear shaft, the rotating unit is composed of a plurality of balls, and the mounting convex ring is provided with a radially inwardly recessed semicircular groove for mounting the balls.

[0007] In the above-mentioned gear shaft, the outer edges of the left and right tooth plates are both provided with a bent tooth portion with external teeth, and the two folding tooth portions are assembled with the left and right tooth plates to leave a spacing between them. The inner edges of the left and right tooth plates are both provided with a bent tooth portion with internal teeth, and the folding tooth portion is used to limit the position of the ball in cooperation with the mounting protrusion.

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

[0009] 1. The main shaft is provided with a rotating unit connected thereto and provided for the installation of the gear part and facilitating the rotation of the gear part. The main shaft is provided with a limiting unit connected thereto and used to limit the position of the rotating unit. The gear part is composed of a left tooth plate and a right tooth plate, and the left tooth plate and the right tooth plate are connected by a plurality of double-headed rivets arranged along the circumferential direction of the gear part. The arrangement of the above structure facilitates its loading and unloading and reduces the replacement cost at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the cross-sectional structure of the gear shaft.

[0011] In the figure, 1, main shaft; 2, left tooth plate; 3, right tooth plate; 4, double-headed rivet; 5, limiting ring; 6, mounting convex ring; 7, ball bearing; 8, folding tooth part 1; 9, folding tooth part 2. 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 gear shaft comprises a main shaft 1 and a gear part arranged on the main shaft 1, a rotating unit connected to the main shaft 1 and provided for the gear part to be installed and to facilitate the rotation of the gear part is arranged on the main shaft 1, a limiting unit connected to the main shaft 1 and used to limit the position of the rotating unit is arranged on the main shaft 1, the gear part is composed of a left tooth plate 2 and a right tooth plate 3, and the left tooth plate 2 and the right tooth plate 3 are connected by a plurality of double-headed rivets 4 arranged along the circumferential direction of the gear part, the limiting unit is a limiting ring 5 connected to the main shaft 1, and both end surfaces of the limiting ring 5 are provided with axial inward depressions to form internal tooth grooves with internal teeth, and the outer peripheral wall of the limiting ring 5 is provided with a mounting convex ring 6 protruding radially outward and provided for the installation of the rotating unit, and the above-mentioned limiting ring 5 can be integrally arranged with the main shaft 1. When the limiting ring 5 is connected to the main shaft 1, When the shaft 1 is arranged in a split type, a limiting protrusion connected to it can be arranged on the main shaft 1, and the rotating unit is composed of a plurality of balls 7. The mounting protrusion ring 6 is provided with a radially inward depression and a semicircular groove, and a slide groove for installing the ball 7. The outer edges of the left tooth plate 2 and the right tooth plate 3 are provided with a bent tooth portion 8 with external teeth. The external teeth of the folded tooth portion 8 can be straight teeth or inclined teeth. The two folded tooth portions 8 are assembled with the left tooth plate 2 and the right tooth plate 3 to leave a spacing between them. The inner edges of the left tooth plate 2 and the right tooth plate 3 are provided with a bent tooth portion 9 with internal teeth, and the folded tooth portion 9 is used to limit the position of the ball 7 in cooperation with the mounting protrusion. The connection between the folded tooth portion 9 and the corresponding left tooth plate 2 and the right tooth plate 3 is provided with an inner arc surface that cooperates with the ball 7.

[0014] 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.

[0015] Although the terms such as spindle 1, left tooth plate 2, right tooth plate 3, double-head rivet 4, stop ring 5, mounting convex ring 6, ball 7, folding tooth part 1 8, folding tooth part 2 9 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 gear shaft, comprising a main shaft (1) and a gear portion arranged on the main shaft (1), characterized in that: The main shaft (1) is provided with a rotating unit connected to it and for mounting the gear part and facilitating the rotation of the gear part. The main shaft (1) is provided with a limiting unit connected to it and used to limit the position of the rotating unit. The gear part is composed of a left tooth plate (2) and a right tooth plate (3), and the left tooth plate (2) and the right tooth plate (3) are connected by a plurality of double-headed rivets (4) arranged along the circumferential direction of the gear part.

2. A gear shaft according to claim 1, characterized in that: The limiting unit is a limiting ring (5) connected to the main shaft (1), and both end surfaces of the limiting ring (5) are provided with axial inward depressions to form internal tooth grooves with internal teeth, and the outer peripheral wall of the limiting ring (5) is provided with a mounting convex ring (6) protruding radially outward and for mounting the rotating unit.

3. A gear shaft according to claim 2, characterized in that: The rotating unit is composed of a plurality of balls (7), and the mounting convex ring (6) is provided with a radially inwardly recessed semicircular groove for mounting the balls (7).

4. A gear shaft according to claim 3, characterized in that: The outer edges of the left tooth plate (2) and the right tooth plate (3) are both provided with a bent tooth portion (8) with external teeth. The two bent tooth portions (8) are assembled with the left tooth plate (2) and the right tooth plate (3) to leave a gap between them. The inner edges of the left tooth plate (2) and the right tooth plate (3) are both provided with a bent tooth portion (9) with internal teeth, which cooperates with the mounting protrusion to limit the position of the ball (7).

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