Wear-resistant helical gear

Abstract

The utility model belongs to the technical field of helical gears, and discloses a wear-resistant helical gear which comprises a helical gear body, an oil storage tank is arranged in the helical gear body, oil outlets are circumferentially arranged on the outer side of the oil storage tank at equal intervals, a pair of oil inlets is arranged at the top end of the helical gear body and communicated with the oil storage tank, and an electroplated layer is arranged on the surface of the helical gear body. A wear-resistant layer is arranged on the surface of the electroplated layer. According to the helical gear, lubricating oil can enter the tooth grooves by storing the lubricating oil in the oil storage grooves and centrifugal force generated by rotation of the helical gear body, damage to the helical gear body caused by friction in the meshing rotation process of the helical gear body is reduced, then the wear-resisting effect of the helical gear is improved, and the service life of the helical gear is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model belongs to bevel gear technical field, more specifically, it is especially related to an anti-abrasion bevel gear. BACKGROUND

[0002] The bevel gear is a kind of gear type, and the tooth surface is at a certain angle (usually bevel angle) with gear axis, not perpendicular to the axis, and the tooth surface of the bevel gear is inclined, forming a helical line, which is different from the straight gear.

[0003] During meshing rotation, the tooth surface of the bevel gear will contact and slide, and friction will be generated, which will cause serious damage to the surface of the bevel gear after long-term use.

[0004] Therefore, in view of the above, the existing structure and defects are studied and improved, and an anti-abrasion bevel gear is provided to achieve a more practical purpose. UTILITY MODEL CONTENTS

[0005] In order to solve the above technical problems, the utility model provides an anti-abrasion bevel gear, which is achieved by the following specific technical means:

[0006] An anti-abrasion bevel gear, comprising a bevel gear body, an oil storage groove is arranged in the inside of the bevel gear body, oil outlet holes are arranged on the outside of the oil storage groove at equal intervals in the circumferential direction, a pair of oil inlet holes are arranged at the top end of the bevel gear body, and the oil inlet holes are communicated with the oil storage groove, an electroplated layer is arranged on the surface of the bevel gear body, and a wear-resistant layer is arranged on the surface of the electroplated layer.

[0007] Further, the top end of the oil inlet hole is threadedly connected with a sealing plug.

[0008] Further, the top end of the sealing plug is provided with a cross groove.

[0009] Further, the material of the bevel gear body is carbon steel.

[0010] Further, the material of the electroplated layer is hard chromium.

[0011] Further, the material of the wear-resistant layer is ceramic.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The anti-wear helical gear has the advantages that the lubricating oil is stored in the oil storage groove and enters the gear slot through centrifugal force generated by the rotation of the helical gear body, the damage of the helical gear body caused by friction in the meshing and rotating process is reduced, the wear resistance of the helical gear is improved, and the service life of the helical gear is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 is a three-dimensional schematic view of the utility model.

[0015] Figure 2 is a three-dimensional sectional view of the utility model.

[0016] Figure 3 is a side view sectional view of the utility model.

[0017] Figure 4 is a side view sectional view of the helical gear body surface electroplating layer and wear-resistant layer structure of the utility model.

[0018] In the drawing, the corresponding relationship between the component name and the drawing number is as follows:

[0019] 1, helical gear body; 2, oil storage groove; 3, oil outlet hole; 4, oil inlet hole; 5, electroplating layer; 6, wear-resistant layer; 7, sealing plug; 8, cross groove. DETAILED DESCRIPTION

[0020] The embodiments of the utility model will be further described in detail below in combination with the drawings and examples. The following examples are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.

[0021] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two; the orientation or position relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like is based on the orientation or position relationship shown in the drawing, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first", "second", "third" and the like are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0022] In the description of the utility model, it is necessary to explain, unless another explicit provision and limitation, the term "connect", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through the intermediate medium.For the ordinary skill in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0023] Embodiment:

[0024] As shown in the accompanying Figure 1 to the accompanying Figure 4 As shown:

[0025] The utility model provides a kind of anti-wear helical gear, including helical gear body 1, the inside of helical gear body 1 is equipped with oil reservoir 2, the outside of oil reservoir 2 is circumferentially equidistant and is equipped with oil outlet hole 3, the top of helical gear body 1 is equipped with a pair of oil inlet hole 4, and oil inlet hole 4 is communicated with oil reservoir 2, the surface of helical gear body 1 is equipped with electroplated layer 5, the surface of electroplated layer 5 is equipped with wear-resistant layer 6, the number of oil outlet hole 3 is same with the number of tooth groove on the surface of helical gear body 1, and the position of each oil outlet hole 3 corresponds with each tooth groove, staff injects lubricating oil in oil reservoir 2 by oil inlet hole 4, when helical gear body 1 rotates, centrifugal force will make the lubricating oil in oil reservoir 2 flow to the surface of helical gear body 1 by oil outlet hole 3.

[0026] Wherein, the top of oil inlet hole 4 is threadedly connected with sealing plug 7, to facilitate the closure of oil inlet hole 4 and oil reservoir 2, prevent lubricating oil from seeping out of oil inlet hole 4.

[0027] Wherein, the top of sealing plug 7 is equipped with cross groove 8, to facilitate staff rotating sealing plug 7.

[0028] Wherein, the material of helical gear body 1 is carbon steel, carbon steel is one of the most commonly used helical gear materials, suitable for general load gear, with good mechanical properties, processing performance and heat treatment performance, after quenching and tempering, can provide good hardness and strength.

[0029] Wherein, the material of electroplated layer 5 is hard chromium, electroplated layer 5 is covered on the surface of helical gear body 1 using electroplating process, hard chromium plating layer has very high hardness, and hard chromium plating layer has good corrosion resistance, can effectively prevent the erosion of gear surface by moisture, oxygen, acidic or alkaline environment.

[0030] Wherein, the material of wear-resistant layer 6 is ceramic, wear-resistant layer 6 is covered on the surface of electroplated layer 5 using spraying process, ceramic material usually has very high hardness, can effectively improve the wear resistance of gear, and ceramic material has high heat resistance, can maintain stable performance in high temperature environment.

[0031] The working principle of the embodiment is as follows: before use, the worker can first take out the sealing plug 7 by means of a screwdriver or the like and inject lubricating oil into the oil storage groove 2 through the oil inlet hole 4, and in the process of oil injection, the worker can block the oil outlet hole 3 by using a small rubber plug or the like, so as to improve the oil injection efficiency; when the anti-wear helical gear is in use, the centrifugal force generated by rotation makes the lubricating oil stored in the oil storage groove 2 gradually enter the tooth groove on the surface of the helical gear body 1 through the oil outlet hole 3, so as to ensure that the helical gear body 1 can be effectively lubricated when rotating, and reduce the mutual wear between the two helical gear bodies 1 when meshing; the electroplated layer 5 and the wear-resistant layer 6 on the surface of the helical gear body 1 can improve the anti-wear ability and corrosion resistance of the gear, so as to prolong the service life of the helical gear body 1.

[0032] Embodiments of the present application are given for the purpose of example and description only and are not intended to be exhaustive or to limit the application to the precise form disclosed. Many modifications and variations are possible in light of this disclosure. The selected and described embodiments are chosen and described for the purpose of illustration and are not intended to exhaust the scope of the present application. They are sufficient to convey the principles of the present application and practical application and to enable others skilled in the art to understand the present application to design various embodiments with various modifications for a specific use.

Claims

1. A wear resistant helical gear comprising a helical gear body (1) characterised in that: The inside of the bevel gear body (1) is provided with an oil storage groove (2), the outer side of the oil storage groove (2) is circumferentially equidistantly provided with an oil outlet hole (3), the top end of the bevel gear body (1) is provided with a pair of oil inlet holes (4), the oil inlet holes (4) are communicated with the oil storage groove (2), the surface of the bevel gear body (1) is provided with an electroplated layer (5), and the surface of the electroplated layer (5) is provided with a wear-resistant layer (6).

2. The anti-wear helical gear of claim 1, wherein: The top end of the oil inlet hole (4) is threadedly connected with a sealing plug (7).

3. The anti-wear helical gear of claim 2, wherein: The top end of the sealing plug (7) is provided with a cross groove (8).

4. The anti-wear helical gear of claim 1 wherein: The material of the bevel gear body (1) is carbon steel.

5. The anti-wear helical gear of claim 1 wherein: The material of the electroplated layer (5) is hard chromium.

6. The anti-wear helical gear of claim 1 wherein: The material of the wear-resistant layer (6) is ceramic.

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