Wear-resistant plastic gear

Abstract

The utility model discloses a kind of wear-resistant plastic gear, including gear body, the gear body is composed of inner fixed ring, connecting ring and tooth ring, the surface of the inner fixed ring is fixed with the connecting ring being integrated, the surface of the connecting ring is fixed with tooth ring, the connecting place of the inner fixed ring and connecting ring is provided with circular groove, the inside of the circular groove is fixed with multiple reinforcing strips at equal intervals.The wear-resistant plastic gear of the utility model is provided with wear surface on the surface of tooth ring and inner fixed ring surface is provided with inner grinding block, improve the wear resistance of the plastic gear meshing part and connecting part, improve service life.

Description

Technical Field

[0001] This utility model relates to the field of plastic gear technology, and in particular to a wear-resistant plastic gear. Background Technology

[0002] Plastic gears are gears made of plastic materials and are mainly used for transmission. They are increasingly used in mechanical transmission and are now widely used in mechanical toys.

[0003] During long-term use, the meshing parts of plastic gears wear out severely, affecting their service life. To address this issue, we designed a wear-resistant plastic gear. Utility Model Content

[0004] The purpose of this invention is to provide a wear-resistant plastic gear to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant plastic gear, comprising a gear body, the gear body being composed of an inner fixing ring, a connecting ring, and a toothed ring, wherein the inner fixing ring is fixedly provided with an integrally connected connecting ring on its surface, the connecting ring is fixedly provided with a toothed ring on its surface, a circular groove is provided at the connection between the inner fixing ring and the connecting ring, and a plurality of reinforcing strips are fixedly provided at equal intervals inside the circular groove.

[0006] Preferably, the surface of the toothed ring is fixedly provided with an integral wear-resistant surface, the wear-resistant surface is made of polytetrafluoroethylene, and the connecting ring is made of PP material.

[0007] Preferably, the inner wall of the inner fixing ring is fixedly provided with an inner grinding block, and the surface of the inner grinding block is provided with uniformly distributed anti-slip texture.

[0008] Preferably, there are at least six reinforcing strips, and the reinforcing strips are designed to be axially symmetrical. One end of each reinforcing strip is fixedly connected to the wall of the circular groove, and the other end of each reinforcing strip is fixedly connected to the outer wall of the inner fixing ring.

[0009] Preferably, both ends of the inner fixing ring are fitted with sealing rings.

[0010] Preferably, the surface of the connecting ring is provided with a plurality of shear holes at equal intervals.

[0011] The technical effects and advantages of this utility model are as follows: The wear-resistant plastic gear improves the wear resistance of the meshing and connecting parts of the plastic gear and increases its service life through the wear-resistant surface provided on the surface of the gear ring and the inner grinding block provided on the surface of the inner fixed ring. Attached Figure Description

[0012] Figure 1This is a schematic diagram of the structure of a wear-resistant plastic gear according to the present invention.

[0013] Figure 2 This is a cross-sectional structural diagram of a wear-resistant plastic gear according to the present invention.

[0014] Figure 3 This is a side view of the wear-resistant plastic gear of this utility model.

[0015] In the diagram: 1. Gear body; 2. Inner fixed ring; 3. Circular groove; 4. Connecting ring; 5. Reinforcing strip; 6. Gear ring; 7. Wear-resistant surface; 8. Inner grinding block. Detailed Implementation

[0016] 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 protection scope of the present utility model.

[0017] This utility model provides, for example Figure 1-3 The wear-resistant plastic gear shown includes a gear body 1, which is composed of an inner fixing ring 2, a connecting ring 4 and a toothed ring 6. The inner fixing ring 2 is fixedly provided with the connecting ring 4, which is integrated with the gear body 4. The connecting ring 4 is fixedly provided with the toothed ring 6. A circular groove 3 is provided at the connection between the inner fixing ring 2 and the connecting ring 4. Multiple reinforcing strips 5 are fixedly provided at equal intervals inside the circular groove 3.

[0018] Specifically, the wear-resistant plastic gear improves the wear resistance of the meshing and connecting parts of the plastic gear and increases its service life through the wear-resistant surface 7 on the surface of the gear ring 6 and the inner grinding block 8 on the surface of the inner fixed ring 2.

[0019] according to Figure 1 , Figure 2 and Figure 3 As shown, this utility model discloses a wear-resistant plastic gear. The surface of the gear ring 6 is fixedly provided with an integral wear-resistant surface 7, which is made of polytetrafluoroethylene, and the connecting ring 4 is made of PP material.

[0020] Specifically, the wear-resistant surface 7 improves the wear resistance of the meshing parts of the plastic gears.

[0021] An inner grinding block 8 is fixedly provided on the inner wall of the inner fixing ring 2, and the surface of the inner grinding block 8 is provided with uniformly distributed anti-slip texture.

[0022] Specifically, the anti-slip texture increases the friction between the inner fixing ring 2 and the connecting shaft.

[0023] There are at least six reinforcing strips 5, and the reinforcing strips 5 are designed to be axially symmetrical. One end of the reinforcing strip 5 is fixedly connected to the wall of the circular groove 3, and the other end of the reinforcing strip 5 is fixedly connected to the outer wall of the inner fixing ring 2.

[0024] Specifically, the reinforcement strip 5 increases the structural strength of the connection between the connecting shaft and the gear.

[0025] Both ends of the inner fixing ring 2 are fitted with sealing rings.

[0026] Specifically, the sealing ring improves the sealing performance at the connection between the plastic gear and the connecting shaft.

[0027] Multiple shear holes are equidistantly opened on the surface of the connecting ring 4.

[0028] Specifically, the shear holes effectively reduce the amount of raw materials used in the gears.

[0029] The working principle of this utility model is as follows: During use, the wear-resistant surface 7 between the adjacent teeth of the gear ring 6 is provided. The wear-resistant surface 7 is integrally injection molded with the gear ring 6 using polytetrafluoroethylene material, which effectively improves the service life of the gear ring 6. At the same time, the inner wall of the inner fixed ring 2 of the plastic gear is provided with inner grinding blocks 8, which increases the friction between the inner grinding blocks 8 and the connecting shaft, thereby improving the connection stability of the plastic gear.

[0030] Contents not described in detail herein are existing technologies known to those skilled in the art. The specific embodiments described herein are merely illustrative examples illustrating the spirit of this invention. Those skilled in the art to which this invention pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this invention or exceeding the scope defined by the appended claims.

Claims

1. A wear-resistant plastic gear, comprising a gear body (1), characterized in that, The gear body (1) is composed of an inner fixing ring (2), a connecting ring (4) and a toothed ring (6). The inner fixing ring (2) is fixedly provided with a connecting ring (4) that is connected as one piece. The connecting ring (4) is fixedly provided with a toothed ring (6) on its surface. A circular groove (3) is provided at the connection between the inner fixing ring (2) and the connecting ring (4). Multiple reinforcing strips (5) are fixedly provided at equal intervals inside the circular groove (3). The surface of the toothed ring (6) is fixedly provided with an integral wear-resistant surface (7), the wear-resistant surface (7) is made of polytetrafluoroethylene, and the connecting ring (4) is made of PP. The inner wall of the inner fixing ring (2) is fixed with an inner grinding block (8), and the surface of the inner grinding block (8) is provided with uniformly distributed anti-slip texture.

2. The wear-resistant plastic gear according to claim 1, characterized in that, The reinforcing strip (5) consists of at least six strips, and the reinforcing strip (5) is designed to be axially symmetrical. One end of the reinforcing strip (5) is fixedly connected to the wall of the circular groove (3), and the other end of the reinforcing strip (5) is fixedly connected to the outer wall of the inner fixing ring (2).

3. The wear-resistant plastic gear according to claim 1, characterized in that, Both ends of the inner fixing ring (2) are fitted with sealing rings.

4. The wear-resistant plastic gear according to claim 1, characterized in that, The surface of the connecting ring (4) is provided with multiple shear holes at equal intervals.

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