CN201685105U

CN201685105U - Centering center rest support

Info

Publication number: CN201685105U
Application number: CN2010201646189U
Authority: CN
Inventors: 赵勇; 邓飞; 丁国训
Original assignee: CHONGQING CHUANDONG SHIPBUILDING HEAVY INDUSTRY Corp
Current assignee: CHONGQING CHUANDONG SHIPBUILDING HEAVY INDUSTRY Corp
Priority date: 2010-04-20
Filing date: 2010-04-20
Publication date: 2010-12-29
Anticipated expiration: 2020-04-20

Abstract

The utility model discloses a centering center rest support, which comprises an outer ring, an inner ring and an annular press plate. The excircle surface of the inner ring is an outer conical surface, the outer ring is sleeved outside the inner ring, the inner circle surface of the outer ring is an inner conical surface matching with the excircle surface of the inner ring, the inner ring consists of at least two half rings, clearances are reserved between the two adjacent half rings circumferentially, and the annular press plate arranged corresponding to a big end face of the inner ring exerts inwards axial force to the inner ring. The inner ring of the support is sleeved on a to-be-processed shaft and then is fixed via the press plate, the radius of the inner ring holds down the to-be-processed shaft radially by aids of the clearances between the adjacent half rings of the inner ring, the axial force of the press plate and actions of the conical surface of the outer ring, and the excircle of the outer ring is supported on a center rest to prevent the shaft directly contacting with the center rest, thereby being favorable for protecting smoothness of a shaft surface better, guaranteeing shaft processing quality, reducing labor intensity of workers and increasing working efficiency.

Description

The self-centering centre frame supports

Technical field

The utility model relates to a kind of processing auxiliary mould, and particularly a kind of self-centering centre frame supports.

Background technology

The processing of axial workpiece is a kind of common processing mode of mechanical field, because the axial workpiece most cases is used for transmission, need be rotatably assorted with fixed part, thereby the axiality of axial workpiece, surface smoothness etc. are generally had relatively high expectations.

In the prior art, add man-hour for major axis,, need take centre frame axle is supported owing to axial length is not easy the location, because in the process, axle is kept in motion, and therefore, can produce friction between axle and the centre frame, cause the surface damage of axle, influence crudies such as surface smoothness, the axle that processes does not meet required precision, the serviceability of final influence axle; Axle for the surface sustains damage generally needs the secondary operations correction, has reduced operating efficiency, has increased operator's labour intensity, improves the processing cost of axle.

Therefore, need to improve existing axle processing mode, be beneficial to the fineness on better protect axle surface, guarantee the crudy of axle, thereby guarantee the serviceability of axle, avoid secondary operations, cut down finished cost, reduce welder's labour intensity, increase work efficiency.

The utility model content

In view of this; the utility model provides a kind of self-centering centre frame to support; use this support in the process; be beneficial to the fineness on better protect axle surface, guarantee the crudy of axle, thereby guarantee the serviceability of axle; avoid secondary operations; cut down finished cost, reduce operative employee's labour intensity, increase work efficiency.

Self-centering centre frame of the present utility model supports, and comprises outer sleeve and inner sleeve, and described inner sleeve outer round surface is a male cone (strobilus masculinus), and outer sleeve is coated at inner sleeve and the inner conical surface of internal circular surfaces for matching with the inner sleeve outer round surface; Described inner sleeve is made up of at least two semi-rings, has the gap at circumferencial direction between the adjacent semi-ring; The corresponding annular pressing plate that inner sleeve is applied inside axial force that is provided with the inner sleeve big end surface.

Further, at least two along the circumferential direction uniform fastening bolts pass the annular pressing plate threaded engagement vertically and are spun on the outer sleeve and make annular pressing plate apply inside axial force to the inner sleeve big end surface;

Further, rounding off between described inner sleeve internal circular surfaces and two end faces;

Further, described inner sleeve is made up of two semi-rings.

The beneficial effects of the utility model: self-centering centre frame of the present utility model supports; adopt the structure of two taper fit; wherein be positioned at inner inner sleeve and be at least two semi-loops; the function that makes it have auto lock and guarantee axiality automatically; the inner sleeve that will support in the process is enclosed within on the processing axle part also fastening by pressing plate; owing to have the gap between the adjacent semi-ring of inner sleeve; and by the axial force of pressing plate and the effect of the outer sleeve conical surface; the semi-ring of inner sleeve is radially held axle part to be processed tightly; the outer sleeve cylindrical is supported on the centre frame; avoid axial workpiece directly to contact centre frame; make inner sleeve outer surface and centre frame friction; be beneficial to the fineness on better protect axle surface, guarantee the crudy of axle, thereby guarantee the serviceability of axle; avoid secondary operations; cut down finished cost, reduce operative employee's labour intensity, increase work efficiency.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further described.

Fig. 1 is a structural representation of the present utility model;

Fig. 2 be Fig. 1 along A-A to cutaway view.

The specific embodiment

Fig. 1 is a structural representation of the present utility model, Fig. 2 be Fig. 1 along A-A to cutaway view, as shown in the figure: the self-centering centre frame of present embodiment supports, comprise outer sleeve 4 and inner sleeve 2, described inner sleeve 2 outer round surface are male cone (strobilus masculinus), and outer sleeve 4 is coated at inner sleeve 2 and the inner conical surface of internal circular surfaces for matching with inner sleeve 2 outer round surface; Described inner sleeve 2 is made up of at least two semi-rings, has the gap at circumferencial direction between the adjacent semi-ring; The corresponding annular pressing plate 1 that inner sleeve 2 is applied inside axial force that is provided with inner sleeve 2 big end surface; Inwardly axial force is meant that the axial force direction is inside with respect to the inner sleeve end face vertically.

In the present embodiment, at least two along the circumferential direction uniform fastening bolts 6 pass annular pressing plate 1 threaded engagement vertically and are spun on the outer sleeve 4 and make 1 pair of inner sleeve 2 big end surface of annular pressing plate apply inside axial force; In the present embodiment, fastening bolt 6 is four and is uniformly distributed along the circumference easy accessibility, handling ease.

In the present embodiment, rounding off between described inner sleeve 2 internal circular surfaces and two end faces; Adopt the structure of rounding off, avoid scuffing being caused on the axle surface, the excessive plastic deformation that causes the axle surface of local stress perhaps occurs, thereby further guarantee the precision on axle surface because of the position, corner.

In the present embodiment, described inner sleeve 2 is made up of two semi-rings; Simple in structure, manufacturing and easy for installation is beneficial to the minimizing working strength of workers.

As shown in the figure, during use, inner sleeve 2 is coated at axle part 7 to be processed, apply axial force by fastening bolt 6, annular pressing plate 1 to inner sleeve 2, utilize the component effect of cone match structure, inner sleeve hugs a part 7, and outer sleeve 4 is supported on the centre frame 3, avoids directly contact centre frame 3 of axle part 7 to be processed; A part 7 is effectively protected.

Explanation is at last, above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.

Claims

1. a self-centering centre frame supports, and it is characterized in that: comprise outer sleeve and inner sleeve, described inner sleeve outer round surface is a male cone (strobilus masculinus), and outer sleeve is coated at inner sleeve and the inner conical surface of internal circular surfaces for matching with the inner sleeve outer round surface; Described inner sleeve is made up of at least two semi-rings, has the gap at circumferencial direction between the adjacent semi-ring; The corresponding annular pressing plate that inner sleeve is applied inside axial force that is provided with the inner sleeve big end surface.

2. self-centering centre frame according to claim 1 supports, and it is characterized in that: at least two along the circumferential direction uniform fastening bolts pass the annular pressing plate threaded engagement vertically and are spun on the outer sleeve and make annular pressing plate apply inside axial force to the inner sleeve big end surface.

3. self-centering centre frame according to claim 2 supports, and it is characterized in that: rounding off between described inner sleeve internal circular surfaces and two end faces.

4. self-centering centre frame according to claim 3 supports, and it is characterized in that: described inner sleeve is made up of two semi-rings.