CN205331197U

CN205331197U - Little shaft of drilling and milling machine

Info

Publication number: CN205331197U
Application number: CN201521003010.7U
Authority: CN
Inventors: 彭来明; 刘满
Original assignee: Anhui Hong Yuan Electromechanical Technology Co Ltd
Current assignee: Chizhou Henghe Pml Precision Mechanism Ltd
Priority date: 2015-12-02
Filing date: 2015-12-02
Publication date: 2016-06-22
Anticipated expiration: 2025-12-02

Abstract

The utility model discloses a little shaft of drilling and milling machine, technical field is designed for mechanical device in affiliated field, including a shaft body, outer keyway, the screw hole, the internal keyway, the escape, the cylinder hole, the axis body is the thin cylinder part in the thick right side in a left side, keyway outside processing has on the thin face of cylinder of right -hand member of axis body, as pinion installation before this part, earlier install general flat key at the external key inslot, adopt the mode transmission of keydrive between the two, there is the threaded hole of tip processing at it, after pinion installation is good, its shaft end ring and adopt the bolt to close into the screw hole soon for the right -hand member, it is fixed with the pinion, the left end cylinder processing of axis body has the cylinder hole, the top processing in cylinder hole has the internal keyway, the utility model discloses a little shaft of drilling and milling machine, axis body hold the ability reinforce of loading lotus, and long service life, spare part are not fragile, and the pinion is fixed reliable, and pinion left end face can conveniently be fixed a position by the transition shaft shoulder.

Description

A kind of little wheel shaft of drilling and milling machine

Technical field

This utility model relates to machinery design field, particularly relates to a kind of little wheel shaft of drilling and milling machine。

Background technology

Mechanically all of lathe all can't do without drive system, gear is to use the class part that frequency is the highest in all driving parts, and gear is typically all to be mounted on an axle and moves with axle, traditional gear mounting means mostly is directly processes keyway on axle, and adopt key transmission between gear, there is certain limitation, the intensity of axle and hardness are subject to the restriction of material, heat treatment is inconvenient, parts on shaft location needs special location and fastenings time fixing, structure is complicated, countershaft requirement is higher, therefore the ability designing a kind of axis body bearing load is strong, long service life, parts are hardly damaged, little gear is fixing reliable, the little wheel shaft of drilling and milling machine that little gear left side can be positioned easily by the transition shaft shoulder seems very necessary。

Utility model content

The purpose of this utility model is contemplated to the restriction overcoming the intensity of traditional axle and hardness to be subject to material, heat treatment is inconvenient, the defect that countershaft requirement is high, devise a kind of little wheel shaft of drilling and milling machine, the ability of axis body bearing load is strong, long service life, and parts are hardly damaged, little gear is fixing reliable, and little gear left side can be positioned easily by the transition shaft shoulder。

Solve the technical problem that required by this utility model and can be achieved through the following technical solutions:

A kind of little wheel shaft of drilling and milling machine, including axis body, outside keyway, described axis body is left thick right thin cylindrical part, on the thin face of cylinder of right-hand member of described axis body, processing has described outside keyway, also include screwed hole, internal keyway, escape, cylindrical hole, in the right part of described axis body, processing has described screwed hole, described screwed hole right-hand member shaft end ring also adopts bolt to screw into described screwed hole, the left end cylinder processing of described axis body has described cylindrical hole, the top processing of described cylindrical hole has described internal keyway, and the low order end processing being positioned at described cylindrical hole has described escape。

Described axis body is the round steel through modifier treatment, and its hardness number reaches HB220～250。

The end of described axis body and the end of described cylindrical hole have all processed chamfering, and its chamfer dimesion is 1 × 45 °。

Axial length 1～the 2mm less of the axial dimension of little gear hub of described axis body right-hand member narrower portion。

Described axis body left end thicker part divides the transition shaft shoulder corner processing with right-hand member narrower portion to have rounding, and its chamfering radius is 0.6mm。

Owing to have employed above technical scheme, this utility model has the advantage that

Adopt axis body, outside keyway, screwed hole, internal keyway, escape, the little wheel shaft of drilling and milling machine of cylindrical hole combined together design, axis body is the round steel through modifier treatment, its hardness number reaches HB220～250, the ability of axis body bearing load is strong, long service life, the end of axis body and the end of cylindrical hole have all processed chamfering, its chamfer dimesion is 1 × 45 °, when axis body and cylindrical hole are installed other parts, parts are hardly damaged, axial length 1～the 2mm less of the axial dimension of little gear hub of axis body right-hand member narrower portion, after then little gear installs, right side back-up ring is fixing reliable to little gear, axis body left end thicker part divides the transition shaft shoulder corner processing with right-hand member narrower portion to have rounding, its chamfering radius is 0.6mm, less than pinion gear aperture chamfer size, little gear left side can be positioned easily by the transition shaft shoulder。

Accompanying drawing explanation

Fig. 1 is this utility model structure forward sight complete section schematic diagram；

Fig. 2 is this utility model structure left view schematic diagram；

Fig. 3 is this utility model structure A A profile；

In figure, each assembly and accompanying drawing labelling are respectively as follows: 1 axis body；2, outside keyway；3, screwed hole；4, internal keyway；5, escape；6, cylindrical hole。

Detailed description of the invention

For the technological means making this utility model realize, creation characteristic, reach purpose and effect and be easy to understand, below in conjunction with being specifically illustrating, this utility model is expanded on further。

A kind of little wheel shaft of drilling and milling machine, including axis body 1, outside keyway 2, screwed hole 3, internal keyway 4, escape 5, cylindrical hole 6, axis body 1 is left thick right thin cylindrical part, on the thin face of cylinder of right-hand member of axis body 1, processing has outside keyway 2, before little gear is arranged on this part, first in outside keyway 2, install general flat key, adopt the mode transmission of key transmission between the two, end processing is had to have screwed hole 3 at it, after little gear installs, its right-hand member shaft end ring also adopts bolt to screw into screwed hole 3, little gear is fixed, the left end cylinder processing of axis body 1 has cylindrical hole 6, the top processing of cylindrical hole 6 has internal keyway 4, the low order end processing being positioned at cylindrical hole 6 has escape 5, control cylindrical hole axial dimension time very convenient。

Axis body 1 is the round steel through modifier treatment, and its hardness number reaches HB220～250, and the ability of axis body 1 bearing load is strong, long service life。

The end of axis body 1 and the end of cylindrical hole 6 have all processed chamfering, and its chamfer dimesion is 1 × 45 °, and when installing other parts on axis body 1 i.e. cylindrical hole 6, parts are hardly damaged。

Axial length 1～the 2mm less of the axial dimension of little gear hub of axis body 1 right-hand member narrower portion, then after little gear installs, right side back-up ring is fixing reliable to little gear。

Axis body 1 left end thicker part divides the transition shaft shoulder corner processing with right-hand member narrower portion to have rounding, and its chamfering radius is 0.6mm, and less than pinion gear aperture chamfer size, little gear left side can be positioned easily by the transition shaft shoulder。

The little wheel shaft of drilling and milling machine disclosed in the utility model, axis body 1 is the round steel through modifier treatment, its hardness number reaches HB220～250, the ability of axis body 1 bearing load is strong, long service life, the end of axis body 1 and the end of cylindrical hole 6 have all processed chamfering, its chamfer dimesion is 1 × 45 °, when axis body 1 i.e. cylindrical hole 6 install other parts, parts are hardly damaged, axial length 1～the 2mm less of the axial dimension of little gear hub of axis body 1 right-hand member narrower portion, after then little gear installs, right side back-up ring is fixing reliable to little gear, axis body 1 left end thicker part divides the transition shaft shoulder corner processing with right-hand member narrower portion to have rounding, its chamfering radius is 0.6mm, less than pinion gear aperture chamfer size, little gear left side can be positioned easily by the transition shaft shoulder。

Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described。Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; described in above-described embodiment and description is that principle of the present utility model is described; under the premise without departing from this utility model spirit and scope, this utility model also has various changes and modifications, and these changes and improvements both fall within the scope of claimed this utility model。This utility model claims scope and is defined by appending claims and equivalent thereof。

Claims

1. the little wheel shaft of drilling and milling machine, including axis body, outside keyway, described axis body is left thick right thin cylindrical part, on the thin face of cylinder of right-hand member of described axis body, processing has described outside keyway, it is characterized in that: also include screwed hole, internal keyway, escape, cylindrical hole, in the right part of described axis body, processing has described screwed hole, described screwed hole right-hand member shaft end ring also adopts bolt to screw into described screwed hole, the left end cylinder processing of described axis body has described cylindrical hole, the top processing of described cylindrical hole has described internal keyway, the low order end processing being positioned at described cylindrical hole has described escape。

2. a kind of little wheel shaft of drilling and milling machine according to claim 1, it is characterised in that: described axis body is the round steel through modifier treatment, and its hardness number reaches HB220～250。

3. a kind of little wheel shaft of drilling and milling machine according to claim 1, it is characterised in that: the end of described axis body and the end of described cylindrical hole have all processed chamfering, and its chamfer dimesion is 1 × 45 °。

4. a kind of little wheel shaft of drilling and milling machine according to claim 1, it is characterised in that: the axial length 1～2mm less of the axial dimension of little gear hub of described axis body right-hand member narrower portion。

5. a kind of little wheel shaft of drilling and milling machine according to claim 1, it is characterised in that: described axis body left end thicker part divides the transition shaft shoulder corner processing with right-hand member narrower portion to have rounding, and its chamfering radius is 0.6mm。