Synchronous gear structure

Abstract

The utility model discloses a synchromesh gear structure which comprises a gear body and two thickening sheet bodies, the two thickening sheet bodies are located on the front side and the rear side of the gear body respectively, and a plurality of first gear teeth which are evenly distributed are arranged on the circumferential end face of the gear body. A first embedding groove with the structure matched with the shape of the first gear teeth is formed between any two adjacent first gear teeth, a plurality of second gear teeth which are evenly distributed are arranged on the circumferential end face of each thickening sheet body, and a second embedding groove with the structure matched with the shape of the second gear teeth is formed between any two adjacent second gear teeth. By arranging the first gear teeth and the second gear teeth, contact tooth surfaces of different planes are achieved, the transmission accuracy between the gears can be further improved, the first gear teeth and the second gear teeth are arranged on different components, the thickness of the gear tooth surfaces is prevented from being too low, the service life of the gears is prolonged, and the gear structures are symmetrically arranged front and back. The gear can keep dynamic balance in the rotating process, and the service life of the gear is further prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of gear structure, specifically is a synchronous gear structure. BACKGROUND

[0002] The synchronous gear structure can be a gear meshing structure, achieving high transmission ratio. In the conventional technology, a plurality of different orientation tooth surfaces are usually arranged, and the precision transmission between gears is improved by the meshing contact of the plurality of different orientation tooth surfaces. However, the gear of the above-mentioned mode has the following problems: 1. The machining difficulty of the plurality of different orientation tooth surfaces is high, and the yield is low, which undoubtedly increases the machining cost; 2. The thickness of the single tooth surface of the gear with multiple tooth surfaces is low, which reduces the strength of the gear teeth and thus reduces the service life of the gear; 3. The gear with multiple tooth surfaces is usually asymmetrically arranged on the front and rear sides, and the asymmetric arrangement will affect the dynamic parallelism of the gear in high-speed rotation, generating centrifugal forces in multiple directions, which will accelerate the wear of the inner side of the gear, affect the transmission precision and reduce the service life of the gear. SUMMARY

[0003] The utility model discloses a synchronous gear structure, which solves the problems raised in the background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a synchronous gear structure, comprising a gear body and two thickened pieces arranged integrally, the two thickened pieces are located on the front and rear sides of the gear body, a plurality of uniformly arranged gear teeth one are arranged on the circumferential end face of the gear body, a structure matching the shape of the gear tooth one is formed between any two adjacent gear teeth one, a plurality of uniformly arranged gear teeth two are arranged on the circumferential end face of each thickened piece, a structure matching the shape of the gear tooth two is formed between any two adjacent gear teeth two, the number of gear teeth one and the number of embedded grooves two are matched, and the positions of the plurality of gear teeth one and the plurality of embedded grooves two are aligned respectively.

[0005] Preferably, each gear tooth one comprises three isosceles trapezoidal parts gradually decreasing from the inner end to the outer end, and the angles of the inclined surfaces on both sides of the three isosceles trapezoidal parts are the same.

[0006] Preferably, a polygonal mounting hole is arranged in the middle of the gear body and the two thickened pieces.

[0007] Preferably, the mounting hole is hexagonal.

[0008] Preferably, the gear body and the two thickened pieces are provided with a plurality of corresponding connecting hole positions.

[0009] Compared with the prior art, the utility model has the following advantages:

[0010] The utility model discloses a tooth one and tooth two are set up, realized the contact tooth surface of different plane, can further promote the transmission accuracy between gear, and tooth one and tooth two are set up on different components, prevent the thickness of tooth surface to be too low, promote the service life of gear, and gear structure is symmetrically set up before and after, can make gear keep dynamic balance in the rotation process, further promote the service life of gear. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 It is the structure schematic diagram of the utility model;

[0012] Figure 2 It is the structure schematic diagram of the utility model partly;

[0013] Figure 3 It is Figure 2 It is the local enlarged view of A place in middle. DETAILED DESCRIPTION

[0014] The technical scheme in the embodiment of the utility model will be clearly and completely described below in combination with the drawings in the embodiment of the utility model, and obviously, the described embodiment only is a part of the embodiment of the utility model, not all the embodiment. Based on the embodiment in the utility model, all other embodiments obtained by the ordinary skill in the art without making the creative labor all belong to the range of protection of the utility model.

[0015] Please refer to Figures 1 to 3 The utility model provides an embodiment: a synchronous gear structure, including one gear body 1 and two thickening piece 2 of cooperation installation, gear body with two thickening piece 2 is integral type structure, two thickening piece 2 is located gear body 1 before and after two sides respectively, and this structure can make the front and back two sides of gear structure symmetry arrangement, can make gear keep dynamic balance in the rotation process, further promote the service life of gear, the circumferential end face of gear body 1 is provided with a plurality of even arrangement tooth one 3, and the structure and tooth one 3 shape are adapted to form the embedded groove one 4 between any two adjacent tooth one 3, the circumferential end face on each thickening piece 2 is provided with a plurality of even arrangement tooth two 5, and the structure and tooth two 5 shape are adapted to form the embedded groove two 6 between any two adjacent tooth two 5, tooth one 3 and embedded groove two 6 are adapted in quantity, a plurality of tooth one 3 and a plurality of tooth two 5 are staggered arrangement, and the position of a plurality of tooth one and a plurality of embedded groove two is respectively aligned, tooth one and tooth two realize the contact tooth surface of different plane, can further promote the transmission accuracy between gear, and tooth one 3 and tooth two 5 are set up on different components, prevent the thickness of tooth surface to be too low, promote the service life of gear.

[0016] In the embodiment, each of the gear teeth 3 comprises three isosceles trapezoidal sections gradually decreasing from the inner end to the outer end, and the angles of the slopes on both sides of the three isosceles trapezoidal sections are the same, which can form multiple gear tooth contact surfaces of the gear teeth 3, and the transmission precision between the gears can be further improved through the meshing of the multiple gear tooth contact surfaces.

[0017] The gear body 1 and the two thickened sheet bodies 2 are both provided with a polygonal mounting hole 7, which is mainly used for mounting a rotating shaft; in the embodiment, the mounting hole 7 is hexagonal, and needs to be matched with a rotating shaft of the same shape. The rotating shaft of the traditional structure is basically cylindrical, and the rotating shaft of the cylindrical structure is easy to slip with the gear, which is not conducive to the precise transmission of the synchronous gear.

[0018] The gear body 1 and the two thickened sheet bodies 2 are both provided with a corresponding plurality of connecting hole positions 8, and the gear body 1 and the two thickened sheet bodies 2 can be fixedly connected by inserting a fixing member into the plurality of connecting hole positions 8; further, the fixing member can be a bolt, which is in interference fit with the gear body 1 and the two thickened sheet bodies 2 respectively, so as to achieve the effect of fixedly connecting the gear body 1 and the two thickened sheet bodies 2.

[0019] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A synchromesh gear structure comprising a gear body and two thickened pieces provided integrally, characterized by: Two thickened pieces are respectively located on the front and back sides of the gear body, a plurality of uniformly arranged gear teeth one are arranged on the circumferential end face of the gear body, a structure matching the shape of the gear teeth one is formed between any two adjacent gear teeth one as an embedded groove one, a plurality of uniformly arranged gear teeth two are arranged on the circumferential end face of each thickened piece, a structure matching the shape of the gear teeth two is formed between any two adjacent gear teeth two as an embedded groove two, the number of the gear teeth one and the embedded groove two are matched, and the positions of the plurality of gear teeth one and the plurality of embedded groove two are respectively aligned.

2. A synchromesh gear arrangement according to claim 1, characterised in that: Each of the gear teeth one comprises three isosceles trapezoidal parts gradually decreasing from the inner end to the outer end, and the angles of the inclined surfaces on both sides of the three isosceles trapezoidal parts are the same.

3. A synchromesh gear arrangement according to claim 1, wherein: A polygonal mounting hole is arranged in the middle of the gear body and the two thickened pieces.

4. A synchromesh gear arrangement according to claim 3, wherein: The mounting hole is hexagonal.

5. A synchromesh gear arrangement according to any one of claims 1 to 4, wherein: The gear body and the two thickened pieces are respectively provided with a plurality of corresponding connecting hole positions.

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