Anti-skid spinning belt hub with tooth-shaped end face

Abstract

The utility model discloses an anti-skidding spinning belt hub with tooth-shaped end faces. The anti-skidding spinning belt hub comprises a spoke and a rim. And the spoke is divided into a convex central spoke part and an edge spoke part connected with the rim. And a mounting hole is formed in the central spoke part. And the periphery of the mounting hole is provided with concave anti-skid teeth. According to the utility model, the plurality of concave anti-skid teeth are arranged on the spoke, and the concave anti-skid teeth are matched with the convex teeth on the timing gear during installation, so that the anti-skid failure caused by the looseness of screws at the joint of the timing gear and the spoke is avoided, and the stability of the connection of the timing gear and the spoke is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of transmission devices, and in particular relates to an end face toothed anti-skid spinning belt wheel hub. Background Art

[0002] In the prior art, the engine crankshaft damping pulley, its hub and inertia ring are usually made by cutting castings. The products produced by this processing have the defects of heavy weight, large amount of materials, low pulley strength, etc.

[0003] In addition, the end face of the wheel hub fits with the end face of the timing gear and is fixed by screws. If the screws become loose, the wheel hub will slip relative to the timing gear, thereby affecting the accuracy of the timing gear signal transmission.

[0004] How to save materials, reduce costs, and lighten the weight of the engine without affecting the quality and service life of the wheel hub, while ensuring the stability of the installation of the wheel hub and timing gear is a technical problem that needs to be solved urgently. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, the utility model provides an end face toothed anti-skid spun belt wheel hub to solve the technical problems of high hub processing cost and slippage in connection with the timing gear.

[0006] To achieve the above purpose, the specific technical solution of the utility model is as follows:

[0007] The end face toothed anti-skid spinning belt hub comprises a wheel spoke and a wheel rim. The wheel spoke is divided into an outwardly protruding central wheel spoke part and an edge wheel spoke part connected to the wheel rim.

[0008] The central spoke portion is provided with a mounting hole, and the periphery of the mounting hole is provided with concave anti-slip teeth.

[0009] Furthermore, there are 18 anti-slip teeth in total, and they are evenly distributed along the circumference of the mounting hole.

[0010] Furthermore, the anti-skid teeth are divided into an inner section and an outer edge section. The outer edge section is concave. The inner section is gradually inclined inward in the direction from the outer ring of the central spoke part to the center.

[0011] Furthermore, the angle between the inner wall of the outer edge section and the plane of the central spoke portion is 60°, and the angle between the outer edge section and the inner section is 120°.

[0012] Furthermore, the middle portion of the wheel rim is provided with an inner groove formed by spin forming.

[0013] Compared with the prior art, the utility model has the following advantages:

[0014] 1. The utility model arranges a plurality of concave anti-skid teeth on the spokes. During installation, the concave anti-skid teeth cooperate with the convex teeth on the timing gear, thereby avoiding anti-skid failure caused by loose screws at the connection between the timing gear and the wheel hub, thereby improving the stability of the connection between the timing gear and the wheel hub.

[0015] 2. The utility model forms the spokes and the rim by stamping, and forms the inner groove for pressing the rubber ring by spinning. Compared with the cutting and forming of castings, this processing method has the characteristics of saving materials, low cost, light structure and high precision. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the spoke in the utility model;

[0018] Figure 3 It is a structural schematic diagram of the anti-slip teeth in the utility model.

[0019] Figure numerals: 1, spoke; 1-1, center spoke portion; 1-2, edge spoke portion; 1-3, anti-slip teeth; 1-4, inner segment; 1-5, outer edge segment; 2, rim; 2-1, inner groove. DETAILED DESCRIPTION

[0020] In the description of the present invention, it should be understood that the terms "one end", "the other end", "outside", "upper", "inside", "horizontal", "coaxial", "center", "end", "length", "outer end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0021] The utility model will be further described below in conjunction with the accompanying drawings.

[0022] like Figure 1 and 2 As shown, the end face toothed anti-skid spun pulley hub is mainly used to meet the anti-skid function of the inner hub of the vibration-damping pulley. The material is 5mm steel plate material, which is formed into a blank by stamping the plate, and then the end face toothed anti-skid spun pulley hub disclosed in the utility model is formed by the spinning process and the stamping process.

[0023] The specific structure includes a coaxially arranged spoke 1 and a rim 2. The middle part of the rim 2 is provided with an inner groove 2-1 formed by spinning for pressing a rubber ring. When the rim 2 with the rubber ring pressed is embedded in the inner ring of the pulley, it can withstand the axial impact load of the pulley.

[0024] like Figure 2 As shown, the spokes are formed by stamping to form a convex central spoke portion 1-1 and an edge spoke portion 1-2 connected to the rim 2. A mounting hole is provided in the middle of the central spoke portion 1-1. The outer ring of the mounting hole is provided with a plurality of concave anti-slip teeth 1-3 formed by cold extrusion.

[0025] During installation, the spoke is embedded in the inner cavity of the pulley, and the transmission shaft connected to the timing gear passes through the installation hole to form a connection. The concave anti-slip teeth 1-3 on the spoke match the convex teeth on the timing gear, thereby preventing the spoke from slipping relative to the timing gear due to loose screws at the connection between the spoke and the timing gear, resulting in timing gear signal errors.

[0026] Furthermore, there are 18 anti-skid teeth 1-3 on the central spoke portion 1-1, and they are distributed along the circumference of the mounting hole. Figure 3 As shown, the anti-skid teeth 1-3 are divided into an inner section 1-4 close to the mounting hole and an outer edge section 1-5 away from the mounting hole. The outer edge section 1-5 is concave. The inner section 1-4 is gradually concave inward in the direction from the outer ring of the central spoke part 1-1 to the center.

[0027] Furthermore, the included angle between the inner wall of the outer edge segment 1-5 and the plane of the central spoke portion 1-1 is 60°±1°. The included angle between the outer edge segment 1-5 and the inner segment 1-4 is 120°.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An end-face toothed anti-skid spinning wheel hub, comprising a spoke (1) and a rim (2); characterized in that: The wheel spoke is divided into a central wheel spoke portion (1-1) protruding outward, and an edge wheel spoke portion (1-2) connected to the wheel rim (2); The central spoke part (1-1) is provided with a mounting hole; the periphery of the mounting hole is provided with inwardly concave anti-slip teeth (1-3).

2. The end face toothed anti-skid spinning pulley hub according to claim 1, characterized in that: There are 18 anti-slip teeth (1-3) in total, and each anti-slip tooth (1-3) is distributed along the circumference of the mounting hole.

3. The end face toothed anti-skid spinning pulley hub according to claim 1, characterized in that: The anti-slip teeth (1-3) are divided into an inner section (1-4) and an outer edge section (1-5); the outer edge section (1-5) is concave; and the inner section (1-4) is gradually inclined inward in the direction from the outer circle of the central spoke part (1-1) to the center.

4. The end face toothed anti-skid spinning pulley hub according to claim 3, characterized in that: The included angle between the inner wall of the outer edge section (1-5) and the plane of the central spoke portion (1-1) is 60°; the included angle between the outer edge section (1-5) and the inner section (1-4) is 120°.

5. The end-face toothed anti-skid spinning pulley hub according to claim 1, characterized in that: The middle part of the wheel rim (2) is provided with an inner groove (2-1) formed by spin forming.

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