Starter gear

Abstract

The utility model discloses a starter gear which comprises a gear body, inner teeth and a shaft hole, the inner teeth and the shaft hole are arranged on the gear body, positioning columns are symmetrically arranged on the upper surface of the gear body, a reinforcing wall is arranged on the outer wall of the gear body, positioning grooves are symmetrically formed in the reinforcing wall, and the positioning columns are arranged in the positioning grooves. The straight line where the two positioning columns are located is perpendicular to the straight line where the two positioning grooves are located. The positioning column and the positioning groove are arranged, the positioning column is used for mounting and positioning an axial part, and the positioning groove is used for mounting and positioning a side wall part, so that the mounting precision is higher, and meanwhile, the mounting efficiency is favorably improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile parts, especially relates to a starter gear. BACKGROUND

[0002] The existing starter gear is generally made of cast iron or cast steel and the like, and the noise is increased and the weight is large in the actual application process. In order to reduce the noise and the weight, a part of the existing starter gear is made of nylon and glass fiber, but the original structure strength is insufficient, so that the service life of the starter gear made of the material is not long, and the original starter gear only has an axial positioning device, and does not have a side wall positioning device, so that the installation is not convenient and is not conducive to installation. SUMMARY

[0003] The utility model provides a starter gear to solve above -mentioned problem.

[0004] In order to solve above -mentioned problem, the technical scheme of the utility model is: a starter gear, its composition includes gear body, inner tooth and shaft hole arranged on gear body, the upper surface of gear body is provided with the positioning column symmetrically, the outer wall of gear body is provided with the reinforcing wall, the reinforcing wall is provided with the positioning groove symmetrically.

[0005] As a further improvement of the utility model, the straight line where the two positioning columns are located is perpendicular to the straight line where the two positioning grooves are located.

[0006] As a further improvement of the utility model, the reinforcing wall is a honeycomb structure.

[0007] The utility model has the advantages of:

[0008] The design sets up the positioning column and the positioning groove, the positioning column is the axial part installation positioning, the positioning groove is the side wall part installation positioning, so that the installation precision is higher, and the installation efficiency is improved.

[0009] The design sets up the reinforcing wall of honeycomb structure, effectively enhances the strength of the starter gear, and prolongs the service life. DRAWINGS

[0010] Figure 1 It is the structural schematic diagram of the utility model;

[0011] Figure 2 It is Figure 1 The overhead structural schematic diagram of.

[0012] In the drawing: gear body 1, inner tooth 2, positioning column 3, shaft hole 4, positioning groove 5, reinforcing wall 6. DETAILED DESCRIPTION

[0013] The utility model is further explained below in connection with the drawings and embodiments.

[0014] In Figures 1 to 2 The utility model discloses a starter gear, which comprises a gear body 1, an inner tooth 2 and a shaft hole 4 arranged on the gear body 1, positioning columns 3 symmetrically arranged on the upper surface of the gear body 1, and reinforcing walls 6 arranged on the outer wall of the gear body 1, wherein the reinforcing walls 6 are symmetrically provided with positioning grooves 5.

[0015] Further, the straight line where the two positioning columns 3 are located is perpendicular to the straight line where the two positioning grooves 5 are located.

[0016] Further, the reinforcing walls 6 are in a honeycomb structure.

[0017] The reinforcing walls 6 arranged on the outer wall of the gear body 1 are in a honeycomb structure, which can effectively enhance the strength of the starter gear and prolong the service life of the starter gear.

[0018] The positioning columns 3 symmetrically arranged on the upper surface of the gear body 1 and the positioning grooves 5 symmetrically arranged on the reinforcing walls 6 can position the installation and connection of the axial parts and the installation and positioning of the two parts of the side wall installation connection, so that the installation precision is higher and the installation efficiency is improved.

[0019] The straight line where the two positioning columns 3 are located is perpendicular to the straight line where the two positioning grooves 5 are located, which can make the positioning more accurate during installation.

[0020] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the utility model is defined by the appended claims rather than the above description, so as to include all changes falling within the meaning and scope of the equivalent elements of the claims in the utility model. Any reference signs in the claims should not be regarded as limiting the claims.

Claims

1. A starter gear, comprising a gear body (1), internal teeth (2) disposed on the gear body (1), and a shaft hole (4), characterized in that: Positioning pins (3) are symmetrically arranged on the upper surface of the gear body (1), and reinforcing walls (6) are provided on the outer wall of the gear body (1). Positioning grooves (5) are symmetrically arranged on the reinforcing walls (6).

2. A starter gear according to claim 1, characterized in that: The straight line containing the two positioning posts (3) is perpendicular to the straight line containing the two positioning grooves (5).

3. A starter gear according to claim 1, characterized in that: The reinforcing wall (6) has a honeycomb structure.

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