CN205136528U

CN205136528U - Gear structure

Info

Publication number: CN205136528U
Application number: CN201520936659.8U
Authority: CN
Inventors: 颜川腾
Original assignee: Chongqing Kairui Motorcycle Part Co Ltd
Current assignee: Chongqing Kairui Motorcycle Part Co Ltd
Priority date: 2015-11-23
Filing date: 2015-11-23
Publication date: 2016-04-06
Anticipated expiration: 2025-11-23

Abstract

The utility model discloses a gear structure, comprising a gear body. One side that the fluted disc of gear body is close to the teeth of a cogwheel is provided with the recess, and tooth root portion be provided with with groove connection's slope structure, and the thickness of slope structure reduces from the tooth top portion of the junction with the recess to the gear body gradually. The utility model discloses a gear structure has seted up the recess on the gear body, and groove connection slope structure, under the normal operating conditions, if the gear band plays silt, then can collect mud in the recess to throw away the gear through slope structure with silt. Because consequently the thickness of slope structure can make things convenient for quick throw away silt from reducing gradually to tooth top portion with groove connection department more, in addition, this design has alleviateed the quality of gear to reduce operating load, improved the running behaviour of gear.

Description

A kind of gear structure

Technical field

The utility model relates to mechanical parts technical field, more particularly, relates to a kind of gear structure.

Background technique

Gear is the parts that mechanical manufacturing field is commonly used, and it mainly applies in transmission device, has good transmission accuracy, and compact structure, reliable operation, transmission efficiency is also higher, is therefore widely used in various machinery.

Existing gear structure, it in use often can take up silt, and silt easily sticks to gear surface; be difficult to drop, and be not easy cleaning, after Long-Time Service; the silt adhered to can cause certain resistance to the running of gear, affects the normal operation of gear.

In sum, how to provide a kind of gear structure, to facilitate the discharge of silt, improving the ride quality of gear, is current those skilled in the art's problem demanding prompt solution.

Model utility content

In view of this, the purpose of this utility model is to provide a kind of gear structure, to facilitate the discharge of silt, improves the ride quality of gear.

In order to achieve the above object, the utility model provides following technological scheme:

A kind of gear structure, comprises gear; The fluted disc of described gear is provided with groove near the side of the gear teeth, and tooth root portion is provided with the gradient structure be connected with described groove, and the thickness of described gradient structure reduces gradually from the joint of the described groove tooth crest to described gear.

Preferably, the wall of wall higher primary school in the second side that described groove is connected with fluted disc of the first side that be connected with described gradient structure of described groove is high.

Preferably, described in the longitudinal section of gear, gradient structure is trapezoidal.

Preferably, the fluted disc of described gear is also provided with the perforate for discharging silt.

Preferably, the number of described perforate is set to four, and is evenly distributed on the circumference of described gear.

Preferably, the cross section of described perforate is ellipticity.

A kind of gear structure that the utility model provides, gear has been offered groove, and groove is connected to gradient structure, under normal working, if gear takes up silt, then mud can be collected in groove, and by gradient structure, silt be thrown away gear.Because the thickness of gradient structure is from reducing gradually to tooth crest with groove joint, thrown away by silt fast therefore, it is possible to convenient, in addition, this design alleviates the quality of gear, thus reduces operating load, improves the ride quality of gear.

Accompanying drawing explanation

In order to be illustrated more clearly in the utility model embodiment or technological scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiment of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.

The schematic diagram of a kind of gear structure that Fig. 1 provides for the utility model embodiment.

In upper Fig. 1:

1 be gear, 2 be groove, 3 be gradient structure, 4 for perforate.

Embodiment

Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.

Refer to Fig. 1, the gear structure that the utility model embodiment provides, comprise gear 1; The fluted disc of gear 1 is provided with groove 2 near the side of the gear teeth, and tooth root portion is provided with the gradient structure 3 be connected with groove 2.In use, the silt that its fluted disc is infected with can gather in groove 2 gear in the process of gear operation, and throws away gear from gradient structure 3, thus avoids the accumulation of silt on gear, effectively reduces the load that gear is in operation.Preferably, the thickness of gradient structure 3 reduces gradually from the joint of groove 2 tooth crest to gear 1, can throw away fast to facilitate silt.

Throw away from groove 2 fast to enable silt, the wall of the first side be connected with gradient structure 3 by groove 2 in a specific embodiment of the application is high, and to be set to be less than the wall of the second side that groove 2 is connected with fluted disc high, now, because the wall of the second side is high higher than the wall of the first side, therefore silt is after entering groove 2 by the second side, just under the influence of centrifugal force smoothly by the first side, thus can get rid of to gradient structure 3 from groove 2, and then throw away from gradient structure 3.Concrete, in the longitudinal section of gear, gradient structure 3 is in trapezoid shaped, preferably, it can be the structure of antiparallelogram, and trapezoidal in the shorter outlying center from gear of upper base, longer lower shoe is near the center of gear, thus the thickness realizing gradient structure 3 is from the change demand reduced gradually to the tooth crest of gear 1 with the joint of groove 2.Certainly, in actual production, this structure can specifically set according to demand, can be also the structures such as triangle, be not limited to trapezoidal.

In addition, the fluted disc of gear 1 is also provided with the perforate 4 for discharging silt, this perforate 4 can coordinate with gradient structure 3, jointly silt is thrown away fluted disc, thus ensures the clean of fluted disc surface, and reduces the resistance of gear operation.Concrete, perforate 4 is arranged on the inner side of groove 2, and gradient structure 3 is arranged on the outside of groove 2, and perforate 4 can be set to multiple.In a specific embodiment of the application, perforate 4 is set to 4, and is evenly distributed on the circumference of gear 1.Being uniformly distributed of four perforates 4, can assist silt to throw away fast in the circumferential uniformly, avoid the accumulation of silt on fluted disc further, improve the runnability of gear.

As preferably, the cross section of perforate 4 is ellipticity, certainly, when the length of perforate 4 is longer, also can be set to the shape and structure bent, and the two ends of perforate 4 are set to arc-shaped, to reach the object accurately evenly thrown away, and avoid silt in the accumulation of perforate 4 periphery, make perforate 4 be convenient to cleaning, concrete structure is as shown in Figure 1.

A kind of gear structure that the utility model embodiment provides, gear 1 has offered groove 2, and groove 2 is connected to gradient structure 3, under normal working, if gear takes up silt, then mud can be collected in groove 2, and by gradient structure 3, silt be thrown away gear.Because the thickness of gradient structure 3 is from reducing gradually to tooth crest with groove 2 joint, thrown away by silt fast therefore, it is possible to convenient, in addition, this design alleviates the quality of gear, thus reduces operating load, improves the ride quality of gear.

Adopt the form of going forward one by one to be described in this specification between each embodiment, what each embodiment stressed is all the differences with other embodiments, the similar portion between each embodiment mutually see.

To the above-mentioned explanation of the disclosed embodiments, those skilled in the art are realized or uses the utility model.To be apparent for a person skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.

Claims

1. a gear structure, comprises gear (1); It is characterized in that, the fluted disc of described gear (1) is provided with groove (2) near the side of the gear teeth, and tooth root portion is provided with the gradient structure (3) be connected with described groove (2), and the thickness of described gradient structure (3) reduces gradually from the joint of described groove (2) tooth crest to described gear (1).

2. a kind of gear structure according to claim 1, is characterized in that, the wall of wall higher primary school in the second side that described groove (2) is connected with fluted disc of the first side that described groove (2) is connected with described gradient structure (3) is high.

3. a kind of gear structure according to claim 2, is characterized in that, gradient structure described in the longitudinal section of gear (3) is in trapezoidal.

4. a kind of gear structure according to any one of claims 1 to 3, is characterized in that, the fluted disc of described gear (1) is also provided with the perforate (4) for discharging silt.

5. a kind of gear structure according to claim 4, is characterized in that, the number of described perforate (4) is set to four, and is evenly distributed on the circumference of described gear (1).

6. a kind of gear structure according to claim 5, is characterized in that, the cross section of described perforate (4) is ellipticity.