CN206845670U

CN206845670U - Gear shaft structure

Info

Publication number: CN206845670U
Application number: CN201720850224.0U
Authority: CN
Inventors: 廖乾畅; 何化; 苏怀林; 吴定勇
Original assignee: Guangxi Yuchai Machinery Co Ltd
Current assignee: Guangxi Yuchai Machinery Co Ltd
Priority date: 2017-07-13
Filing date: 2017-07-13
Publication date: 2018-01-05
Anticipated expiration: 2027-07-13

Abstract

The utility model discloses a kind of gear shaft structure, and it is included：Bottom, connecting shaft and annular groove.Connecting shaft end face is fixed in bottom, and the center of the other end of connecting shaft offers the first bolt hole.And annular groove is opened in the intermediate region of the other end of connecting shaft centered on the first bolt hole.Whereby, gear shaft structure of the present utility model, cutter can be reduced because caused by processing linear velocity is low the problem of offset tool abrasion, add the life-span of cutter, and thrust distribution is more reasonable, effectively increases fixed effect.

Description

Gear shaft structure

Technical field

Field of internal combustion engine is the utility model is related to, more particularly to a kind of gear shaft structure.

Background technology

Gear shaft designs at present, and the mounting surface of gear shaft is all a big plane, as shown in figure 1, such design, can make Obtain bolt presses power and be dispersed in inner circle scope, diameter is smaller, and fixed effect is undesirable.Other process tool is processing this plane When, the linear velocity of central spot is smaller, causes processing difficulties.

The information for being disclosed in the background section is merely intended to increase the understanding to general background of the present utility model, and It is not construed as recognizing or implies that the information structure has been existing well known to persons skilled in the art in any form Technology.

Utility model content

The purpose of this utility model is to provide a kind of gear shaft structure, cutter can be reduced because processing linear velocity is low leads The problem of offset tool abrasion of cause, the life-span of cutter is added, and thrust distribution is more reasonable, effectively increases fixed effect.

To achieve the above object, the utility model provides a kind of gear shaft structure, and it is included：Bottom, connecting shaft and Annular groove.Connecting shaft end face is fixed in bottom, and the center of the other end of connecting shaft offers the first bolt hole.With And annular groove is opened in the intermediate region of the other end of connecting shaft centered on the first bolt hole.

Preferably, in above-mentioned technical proposal, gear shaft structure also includes multiple second bolts hole, and it is opened in annular groove Edge.

Preferably, in above-mentioned technical proposal, the quantity of multiple second bolts hole is four, and is arranged into hollow, and is wrapped Enclose annular groove.

Compared with prior art, the utility model has the advantages that：Gear shaft structure of the present utility model, can Cutter is reduced because caused by processing linear velocity is low the problem of offset tool abrasion, adds the life-span of cutter, and thrust distribution is more Rationally, fixed effect is effectively increased.

Brief description of the drawings

Fig. 1 is the structural representation of existing gear shaft structure.

Fig. 2 is according to a kind of structural representation of gear shaft structure of the present utility model.

Main Reference Numerals explanation：

1- bottoms, 2- connecting shafts, the bolts hole of 3- first, 4- annular grooves, the bolts hole of 5- second.

Embodiment

Below in conjunction with the accompanying drawings, specific embodiment of the present utility model is described in detail, it is to be understood that this practicality New protection domain is not limited by embodiment.

Explicitly indicated that unless otherwise other, otherwise in entire disclosure and claims, term " comprising " or its change Change such as "comprising" or " including " etc. and will be understood to comprise stated element or part, and do not exclude other members Part or other parts.

As shown in figure 1, according to a kind of gear shaft structure of the utility model embodiment, it is included：Bottom 1, connect Spindle 2 and annular groove 4.The end face of connecting shaft 2 is fixed in bottom 1, and the other end center of connecting shaft 2 offers One bolt hole 3.And annular groove 4 is opened in the intermediate region of the other end of connecting shaft 2 centered on the first bolt hole 3.

Preferably, gear shaft structure also includes multiple second bolts hole 5, and it is opened in the edge of annular groove 4, the another end face Symmetrically arranged two the 3rd bolts hole are further opened with, and two the 3rd bolts hole are symmetricly set in multiple second bolts hole 5 Outside.

Preferably, the quantity of multiple second bolts hole 5 is four, and is arranged into hollow, and surrounds annular groove 4.

In practical application, increase by one in the installation end face of gear shaft structure (i.e. the other end of connecting shaft) intermediate region Annular groove 4, herein annular groove 4 just manufactured in the gear shaft blank fabrication stage, without processing, can thus avoid In machining process, when being worked into central area, the problem of cutter linear velocity is too small, and gear shaft structure is attached to other During parts, thrust is distributed in big circumference range, strengthens the effect that gear shaft structure is fixed.

In a word, gear shaft structure of the present utility model, cutter can be reduced because offset tool mill caused by processing linear velocity is low The problem of damage, the life-span of cutter is added, intuitively financial cost can be brought, and thrust distribution is more reasonable, effectively improves Fixed effect.

The foregoing description to specific illustrative embodiment of the present utility model is to illustrate and the purpose of illustration.These Description is not wishing to for the utility model to be defined to disclosed precise forms, and it will be apparent that according to above-mentioned teaching, can carry out It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explain certain principles of the present utility model And its practical application, so that those skilled in the art can realize and utilize a variety of examples of the present utility model Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shape Formula is limited.

Claims

1. a kind of gear shaft structure, it is characterised in that the gear shaft structure includes：

Bottom；

Connecting shaft, one end is fixed in the bottom, and the center of the other end of the connecting shaft offers first Bolt hole；And

Annular groove, it is opened in the intermediate region of the other end of the connecting shaft centered on first bolt hole.

2. gear shaft structure according to claim 1, it is characterised in that the gear shaft structure also includes multiple second spiral shells Keyhole, it is opened in the edge of the annular groove.

3. gear shaft structure according to claim 2, it is characterised in that the quantity of the multiple second bolt hole is four It is individual, and arranged into hollow, and surround the annular groove.