CN202017703U

CN202017703U - Connecting sleeve

Info

Publication number: CN202017703U
Application number: CN2011200819166U
Authority: CN
Inventors: 周宏伟; 蒋长春
Original assignee: LUOYANG QIRUI JINGANGSHI EQUIPMENT MANUFACTURING CO LTD
Current assignee: LUOYANG QIRUI JINGANGSHI EQUIPMENT MANUFACTURING CO LTD
Priority date: 2011-03-25
Filing date: 2011-03-25
Publication date: 2011-10-26
Anticipated expiration: 2021-03-25

Abstract

A connecting sleeve comprises a casing, a slip cap, a bearing and sealing covers, wherein the slip cap is provided with an inner chamber; the casing is a cylinder; the slip cap and the bearing are arranged in the casing; and the sealing covers are arranged at the two end surfaces of the casing and connected with the casing through a screw. The connecting sleeve has simple structure and reasonable design, a slipping body can slide horizontally on a boring bar through the slip cap, and the boring bar can be sleeved with the slipping body without the need of lubricant, so that the frictional loss is greatly reduced and the cost is saved.

Description

A kind of connecting sleeve

Technical field

The utility model relates to a kind of connecting sleeve, specifically be the connecting sleeve that in right boring hinge beam earhole processing, is arranged between boring bar and the boring bar bearing.

Background technique

Boring bar is arranged in the bearing support as the vitals of machine tooling, when large component is carried out the right boring earhole, a kind of method is: boring bar directly contacts sliding friction with bearing support, so boring bar needs lubricating oil filling lubricated in use for some time, reduce the wearing and tearing of boring bar, but because the most of hardness of object of boring bar circle mill are very high, perhaps object is very big, need circle mill for a long time, the bearing support rough surface needs regular adding lubricant oil, reduces working efficiency, and, by the lubricated problem that can not solve the boring bar serious wear, another kind of method is: add into fixing bearing bearing surface precision height at bearing support, reduce the rate of wear of boring bar, but,, normally to pass bearing support earlier and pass boring template again and pass bearing support again because the gap of boring bar and bearing is very little, if trickle skew takes place between boring template and the bearing support, boring bar just is difficult to pass all parts, reduces working efficiency, simultaneously, this kind setting also needs not timing to be lubricated befouling environment.

The model utility content

The utility model provides a kind of connecting sleeve, and is reasonable in design, simple in structure, reduces the boring bar frictional loss.

The utility model is that the technological scheme that deficiency adopted that solves the problems of the technologies described above is: a kind of connecting sleeve, form by shell, flip sleeve, bearing and sealing cover, flip sleeve is provided with the inner chamber of an equal diameters, internal chamber wall is smooth circumferential surface, on the flip sleeve outer peripheral surface, be provided with boss, the circumferential body of boss both sides is separately positioned on the inner ring of bearing, shell is a cylinder, flip sleeve and bearing setting are in the enclosure, be provided with sealing cover on the both ends of the surface of shell, sealing cover is connected by screw with shell.

The outer ring of bearing described in the utility model and shell are fitted.

The beneficial effects of the utility model are:

1, this article structure is simple, reasonable in design, slidably body can horizontally slip on boring bar by flip sleeve, do not need lubricant oil, just slide mass can be enclosed within on the boring bar, frictional force between flip sleeve and the boring bar will be much larger than the frictional force between flip sleeve and the bearing, therefore boring bar drive flip sleeve rotates together, change the direct sliding friction of boring bar and bearing support in original technology in the technical program rolling friction between the flip sleeve and bearing, greatly reduce frictional loss, saved cost.

2, the gap of the flip sleeve of bearing support and boring bar has only 0.03-0.05mm, and both Spielpassung reduce dust and enter, and make machining accuracy higher.

3, this bearing support and boring bar Spielpassung can arbitrarily be taken off, and interference fit can not take place, and boring bar is easy to use, need not utilized device and take out boring bar, when bearing support damages, can take off replacing at any time, and be more convenient reasonable.

When 4, skew took place for bearing support and boring template position, behind the bearing support that fixes an end, bearing support changed the boring bar position by internal bearings automatically, makes boring bar can pass remaining endoporus.

Description of drawings

Fig. 1 is a sectional structure schematic representation of the present utility model;

Fig. 2 is a side structure schematic representation of the present utility model;

Fig. 3 is the structural representation of embodiment's 1 flip sleeve of the present utility model;

Fig. 4 is the structural representation of embodiment's 2 flip sleeves of the present utility model and boss;

Among the figure: 1, shell, 2, bearing, 3, flip sleeve, 4, positioning groove, 5, sealing cover, 6, boss, 7, inner chamber, 8, circumferential body.

Embodiment

As shown in the figure, a kind of connecting sleeve, be made up of shell 1, flip sleeve 3, bearing 2 and sealing cover 5, flip sleeve 3 is provided with the inner chamber 7 of an equal diameters, and internal chamber wall is smooth circumferential surface, on flip sleeve 3 outer peripheral surfaces, be provided with boss 6, the circumferential body 8 of boss 6 both sides is separately positioned on the inner ring of bearing 2, and shell 1 is a cylinder, and flip sleeve 3 and bearing 2 are arranged in the shell 1, be provided with sealing cover 5 on the both ends of the surface of shell 1, sealing cover 5 and shell 1 are connected by screw.

The outer ring of described bearing 2 and shell 1 are fitted, and the inner ring of bearing 2 and flip sleeve 3 are fitted.

The internal diameter of described flip sleeve 3 is than the big 0.03-0.015mm of diameter of boring bar, and its optimum way is 0.03-0.05mm.

Described bearing 2 is a plain bearing, as deep groove ball bearing.

Embodiment 1

As shown in Figure 3, described boss 6 and flip sleeve 3 one, boss 6 plays the role of positioning, and prevents that sealing cover 5 from sliding.

The gap that has 0.03-0.05mm between the flip sleeve 3 of slidably body of the present utility model and the boring bar is a Spielpassung, flip sleeve 3 is very high with the precision of boring bar surface of contact, slidably body can horizontally slip on boring bar by flip sleeve 3, conveniently slide mass is enclosed within on the boring bar, because the gap between flip sleeve 3 and the boring bar is very little, be not easy to grind dead between flip sleeve 3 and the boring bar.

When the gap between boring bar and the flip sleeve 3 is 0.05-0.15mm, do not influence the use of boring bar and bearing support, but need polish bore hole, reduce working efficiency.

In the processing of right boring hinge beam earhole, bearing support can be taken down from bearing support, bearing support is enclosed within on the boring bar, again bearing support is arranged in the bearing support, boring bar one end puts bearing support, with bolt bearing support is installed in the bearing support, flip sleeve and boring bar Spielpassung, promoting boring bar passes in the boring template hole, bearing support will be put on the boring bar that pass again, with bolt bearing support is installed on the bearing support, changed the pattern that former boring bar perforation need be passed fixed bearing block-boring template-fixed bearing block, convenient when making boring bar pass bearing support and boring template, if bearing support and boring template position are offset, behind the bearing support that fixes an end, bearing support can change the boring bar position by internal bearings automatically.When boring bar rotated, the frictional force between flip sleeve 3 and the boring bar was much larger than the frictional force between flip sleeve 3 and the bearing 2, so boring bar drive flip sleeve 3 rotates together.Change the direct sliding friction of boring bar and bearing support in original technology in the technical program rolling friction between the flip sleeve 3 and bearing 2, greatly reduce frictional loss, saved cost.

Embodiment 2

As shown in Figure 4, described boss 6 can be interstage sleeve, and flip sleeve 3 is a cylinder, and flip sleeve 3 outer peripheral surfaces are level and smooth the setting, and interstage sleeve is enclosed within on the flip sleeve and plays the role of positioning, and prevents that sealing cover 5 from sliding.

Claims

1. connecting sleeve, it is characterized in that: by shell (1), flip sleeve (3), bearing (2) and sealing cover (5) are formed, flip sleeve (3) is provided with the inner chamber (7) of an equal diameters, internal chamber wall is smooth circumferential surface, on flip sleeve (3) outer peripheral surface, be provided with boss (6), the circumferential body (8) of boss (6) both sides is separately positioned on the inner ring of bearing (2), shell (1) is a cylinder, flip sleeve (3) and bearing (2) are arranged in the shell (1), be provided with sealing cover (5) on the both ends of the surface of shell (1), sealing cover (5) is connected by screw with shell (1).

2. a kind of connecting sleeve as claimed in claim 1 is characterized in that: the outer ring of described bearing (2) and shell (1) are fitted.