CN206377230U

CN206377230U - A kind of gear

Info

Publication number: CN206377230U
Application number: CN201621326764.0U
Authority: CN
Inventors: 文广; 李华志
Original assignee: Chengdu Technological University CDTU
Current assignee: Chengdu Technological University CDTU; Chengdu Univeristy of Technology
Priority date: 2016-12-05
Filing date: 2016-12-05
Publication date: 2017-08-04
Anticipated expiration: 2026-12-05

Abstract

The utility model is related to a kind of gear, comprising several gear teeth, and several projections are respectively equipped with all fields of conjugate action of each gear teeth, and all laser melting coatings that project through are fixed on the correspondence gear teeth.Using this product so that the engagement between the gear teeth is worn and torn first the projection, therefore, it is possible to effectively slow down the contact area between the matrix material of gear teeth meshing position in itself, advantageously reduce contact stress and the time of contact of gear meshing portions position matrix material, avoid the occurrence of fatigue crack, there is gap between some projections simultaneously, the gap increases the storage capacity of lubricating oil, further slow down the abrasion of the field of conjugate action, so as to lift the transmission efficiency of decelerator, improve the wearability of the gear teeth, improve the security that gear is used, extend the service life of gear.

Description

A kind of gear

Technical field

The utility model is related to technical field of mechanical transmission, particularly a kind of gear.

Background technology

Gear is the medium being driven between machinery, gear mechanism to transmit two axles between motion and power, be not Tongfang The transmission of position kinetic energy is there is provided possible, because gear-driven efficiency is high, and accurately, service life is long, safe and reliable for gearratio, Therefore gear drive equipment is widely used in all trades and professions, and its type and size are varied, it is necessary to the application requirement met It is different, but gear, as one of key components and parts of various drive apparatus, its performance quality is direct to a certain extent Determine the service life of whole equipment.

One of main failure forms of gear are the abrasions of the field of conjugate action, and the gear geometric features after heavy wear change, Backlash increases, and causes strength of gear teeth step-down, gearing noise to become big, is driven unstable, vibrations, or even can cause the peace of broken teeth Decelerator on full accident, such as building hoist, relies primarily on gear to realize the conversion of motor speed, and is lifted for construction This kind equipment of machine is, it is necessary to frequently transport people or goods, and load is heavy, and security requirement is high, once broken teeth occur may trigger Serious security incident.

Utility model content

Goal of the invention of the present utility model be to overcome now cogged gear teeth meshing coefficient of friction it is larger, the biography of decelerator Efficiency of movement is relatively low, after certain use time, and various forms of abrasions occur in the gear teeth, or even broken teeth occur, trigger tight The above-mentioned deficiency such as the consequence of weight is simple in construction there is provided a kind of gear, easy to process, and contact stress between reduction meshing gear is improved Transmission efficiency, slows down the abrasion of the gear teeth, reduces use cost, increases the service life, and improves working gear stability and reliability.

To achieve these goals, the technical solution adopted in the utility model is：

A kind of gear, comprising several gear teeth, is respectively equipped with several projections on all fields of conjugate action of each gear teeth, All laser melting coatings that project through are fixed on the correspondence gear teeth.

Using a kind of gear of the present utility model, comprising several gear teeth, distinguish in all engagements of each gear teeth Raised provided with several, all projections are cladding material, by laser melting and coating technique formation texture surface, using this product The projection so that engagement between the gear teeth is worn and torn first, therefore, it is possible to effectively slow down the matrix of gear teeth meshing position in itself Contact area between material, advantageously reduces contact stress and the time of contact of gear meshing portions position matrix material, it is to avoid go out Existing fatigue crack, while there is gap between some projections, the gap increases the storage capacity of lubricating oil, entered One step slows down the abrasion of the field of conjugate action, so as to lift the transmission efficiency of decelerator, improves the wearability of the gear teeth, improves tooth The security used is taken turns, extends the service life of gear.

It is preferred that, all raised materials are iron-based or Ni-based.

Using iron-based or Ni-based as cladding material, preferably, cost is relatively low for hardness.

It is preferred that, all raised size shape all sames.

All raised size shape all sames, are easy to the engagement between gear, it is to avoid because of the raised shape Difference in size is larger and accelerates the abrasion of the field of conjugate action, causes the failures such as broken teeth.

It is preferred that, all projections are uniformly distributed in each field of conjugate action.

The projection is distributed with each field of conjugate action from tooth root to tooth top, is conducive to slowing down the mill of the whole field of conjugate action Damage.

It is preferred that, it is all it is described it is raised be in matrix arrangement, the distance between two adjacent described projections are equal.

All described raised in determinant regular array, all projections often gone are located along the same line, each column All projections are located along the same line, and the distance between two adjacent described projections are equal, are easy to processing.

It is further preferred that all described raised in hemispherical.

It is further preferred that the distance between two adjacent described projections are 0.5-5 times of the projection diameter.

It is further preferred that the spacing between two adjacent projections is 2-10mm.

The projection is set using aforesaid way, is conducive to reducing the raised coefficient of friction, improves the projection Between gap oil storage capacity, keep oil film covering, improve rub proofness, slow down abrasion.

In summary, by adopting the above-described technical solution, the beneficial effects of the utility model are：

1st, using a kind of gear of the present utility model, using this product so that the engagement between the gear teeth is worn and torn first institute Projection is stated, therefore, it is possible to effectively slow down the contact area between the matrix material of gear teeth meshing position in itself, tooth is advantageously reduced Take turns contact stress and the time of contact of site of engagement matrix material, it is to avoid fatigue crack occur, while in some projections Between there is gap, the gap increases the storage capacity of lubricating oil, further slows down the abrasion of the field of conjugate action, so as to carry The transmission efficiency of decelerator is risen, the wearability of the gear teeth is improved, the security that gear is used is improved, extends the use longevity of gear Life.

2nd, using a kind of gear of the present utility model, using iron-based or Ni-based as cladding material, hardness preferably, cost compared with It is low.

3rd, using a kind of gear of the present utility model, all raised size shape all sames are easy between gear Engagement, it is to avoid accelerate the abrasion of the field of conjugate action because the raised shape size differs greatly, cause the failures such as broken teeth.

4th, using a kind of gear of the present utility model, be conducive to reducing the raised coefficient of friction, improve the projection Between gap oil storage capacity, keep oil film covering, improve rub proofness, slow down abrasion.

5th, it is simple in construction using a kind of gear of the present utility model, it is easy to processing.

Brief description of the drawings

Fig. 1 be the utility model in a kind of gear tooth structural representation.

Fig. 2 be the utility model in a kind of gear tooth structure front view.

The structural representation that Fig. 3 engages for a kind of gear in the utility model.

Marked in figure：The 1- gear teeth, 2- is raised.

Embodiment

Below in conjunction with the accompanying drawings, the utility model is described in detail.

In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation Example, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only to explain this Utility model, is not used to limit the utility model.

Embodiment 1

Such as Fig. 1-3, a kind of gear described in the utility model, comprising several gear teeth 1, each the gear teeth 1 is all Several projections 2 are respectively equipped with the field of conjugate action, all described raised 2 are fixed on the correspondence gear teeth 1 by laser melting and coating technique On, the cladding material to be Ni-based, all described raised 2 size shape all sames it is hemispherical, all described raised 2 is uniform Each field of conjugate action is distributed in, all described raised 2 be in matrix arrangement, adjacent two described raised the distance between 2 Equal, adjacent two described raised the distance between 2 are 1.5 times, adjacent two described raised 2 of raised 2 diameter The distance between be 3mm.

Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model Any modifications, equivalent substitutions and improvements made within the spirit and principle of utility model etc., should be included in the utility model Protection domain within.

Claims

1. a kind of gear, includes several gear teeth (1), it is characterised in that on all fields of conjugate action of each gear teeth (1) respectively Provided with several raised (2), all raised (2) are fixed on the correspondence gear teeth (1) by laser melting coating.

2. a kind of gear according to claim 1, it is characterised in that the material of all raised (2) is iron-based or nickel Base.

3. a kind of gear according to claim 1, it is characterised in that the size shape all same of all raised (2).

4. according to a kind of any described gears of claim 1-3, it is characterised in that all raised (2) are uniformly distributed in Each field of conjugate action.

5. according to a kind of any described gears of claim 1-3, it is characterised in that all described raised (2) are arranged in matrix form Arrange, the distance between adjacent two described raised (2) are equal.

6. a kind of gear according to claim 5, it is characterised in that all described raised (2) are in hemispherical.

7. a kind of gear according to claim 5, it is characterised in that the distance between adjacent two described raised (2) For 0.5-5 times of described raised (2) diameter.

8. a kind of gear according to claim 7, it is characterised in that the spacing between two adjacent raised (2) For 2-10mm.