CN213224345U

CN213224345U - Eccentric fastening bush

Info

Publication number: CN213224345U
Application number: CN202021528105.1U
Authority: CN
Inventors: 高锋超; 马海军; 吴红卫; 刘文艳; 王傲天; 赵培珺; 李雪
Original assignee: Xingxia Tzhg Waste Heat Generation Technology Co ltd
Current assignee: Xingxia Tzhg Waste Heat Generation Technology Co ltd
Priority date: 2020-07-29
Filing date: 2020-07-29
Publication date: 2021-05-18
Anticipated expiration: 2030-07-29

Abstract

An eccentric tightening bush comprises an outer expansion sleeve, an eccentric inner expansion sleeve, a first locking plate and a second locking plate, wherein the eccentric inner expansion sleeve is arranged inside the outer expansion sleeve, the outer diameter of the eccentric inner expansion sleeve is smaller than the inner diameter of the outer expansion sleeve, so that a gap is formed between the eccentric inner expansion sleeve and the outer expansion sleeve, the first locking plate and the second locking plate are oppositely arranged in the gap formed between the eccentric inner expansion sleeve and the outer expansion sleeve, and the first locking plate and the second locking plate are fastened through screws, so that the outer expansion sleeve and the eccentric inner expansion sleeve are fixed; the utility model discloses a problem of the equipment concentricity of on-the-spot turning hole wearing and tearing has been solved to eccentric tight bush of deciding, through eccentric tight bush of deciding, can adjust alignment concentricity wantonly, increases the turning precision.

Description

Eccentric fastening bush

Technical Field

The utility model relates to a bush equipment technical field especially relates to an eccentric tight bush of deciding.

Background

The existing equipment for turning the inner hole in the field is seriously worn when being used for processing a plurality of fields, has no reference surface, is not on a concentric circle with a workpiece after being installed by a traditional fastening bush, has error after being processed, and greatly increases the precision of the workpiece.

Disclosure of Invention

In view of the above, it is desirable to provide an eccentric tightening bushing.

The utility model provides an eccentric tight bush that decides, includes the cover that rises outward, the cover that rises in eccentric, first locking plate, second locking plate, the cover that rises in eccentric sets up in the inside of the cover that rises outward, and the external diameter size of the cover that rises in eccentric is less than the internal diameter size of the cover that rises outward, makes and forms the clearance between the cover that rises in eccentric and the cover that rises outward, and first locking plate and second locking plate subtend set up in the clearance that forms between cover that rises in eccentric and the cover that rises outward, and first locking plate passes through screw-fastening with the second locking plate to it is fixed mutually with the cover that rises in eccentric to rise outward.

Preferably, the inner wall of the outer expansion sleeve is V-shaped, so that an included angle A is formed between the two side walls of the inner wall of the outer expansion sleeve and the central axis of the outer expansion sleeve.

Preferably, the included angle A formed by the two side walls of the inner wall of the outer expansion sleeve and the central axis of the outer expansion sleeve is 6.71 degrees.

Preferably, the outer wall of the eccentric inner expanding sleeve is inverted V-shaped, so that an included angle B is formed between two side walls of the outer wall of the eccentric inner expanding sleeve and the central axis of the eccentric inner expanding sleeve.

Preferably, the included angle B formed by the two side walls of the outer wall of the eccentric inner expanding sleeve and the central axis of the eccentric inner expanding sleeve is 6.71 degrees.

Preferably, two side walls of the first locking plate are inclined, so that the cross section of the first locking plate is conical, and the two side walls of the first locking plate are respectively contacted with the inner wall of the outer expansion sleeve and the outer wall of the eccentric inner expansion sleeve.

Preferably, the first lock plate is provided with a positioning hole for a screw to pass through.

Preferably, two side walls of the second locking plate are inclined, so that the cross section of the second locking plate is conical, and the two side walls of the second locking plate are respectively contacted with the inner wall of the outer expansion sleeve and the outer wall of the eccentric inner expansion sleeve.

Preferably, the second locking plate is provided with a locking hole corresponding to the positioning hole, and a thread matched with the fixing screw is arranged in the locking hole.

Preferably, the eccentric distance between the inner circle center and the outer circle center of the eccentric inner expanding sleeve is 1 mm.

The utility model adopts the above technical scheme, its beneficial effect lies in: the utility model comprises an outer expansion sleeve, an eccentric inner expansion sleeve, a first locking plate and a second locking plate, wherein the eccentric inner expansion sleeve is arranged inside the outer expansion sleeve, the outer diameter of the eccentric inner expansion sleeve is smaller than the inner diameter of the outer expansion sleeve, so that a gap is formed between the eccentric inner expansion sleeve and the outer expansion sleeve, the first locking plate and the second locking plate are oppositely arranged in the gap formed between the eccentric inner expansion sleeve and the outer expansion sleeve, and the first locking plate and the second locking plate are fastened through screws, so that the outer expansion sleeve and the eccentric inner expansion sleeve are fixed; the utility model discloses a problem of the equipment concentricity of on-the-spot turning hole wearing and tearing has been solved to eccentric tight bush of deciding, through eccentric tight bush of deciding, can adjust alignment concentricity wantonly, increases the turning precision.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic sectional structure view of fig. 1.

In the figure: the locking bolt comprises an external expansion sleeve 01, an eccentric internal expansion sleeve 02, a first locking plate 03, a second locking plate 04 and a bolt 05.

Detailed Description

Referring to fig. 1 to 2, an embodiment of the present invention provides an eccentric tightening bushing, which includes an outer expanding sleeve 01, an eccentric inner expanding sleeve 02, a first locking plate 03, and a second locking plate 04, wherein an eccentricity between an inner circle center and an outer circle center of the eccentric inner expanding sleeve 02 is 1 mm. The eccentric internal expansion sleeve 02 is arranged inside the external expansion sleeve 01, the external diameter of the eccentric internal expansion sleeve 02 is smaller than the internal diameter of the external expansion sleeve 01, so that a gap is formed between the eccentric internal expansion sleeve 02 and the external expansion sleeve 01, the first locking plate 03 and the second locking plate 04 are oppositely arranged in the gap formed between the eccentric internal expansion sleeve 02 and the external expansion sleeve 01, and the first locking plate 03 and the second locking plate 04 are fastened through a screw 05, so that the external expansion sleeve 01 and the eccentric internal expansion sleeve 02 are fixed mutually.

The inner wall of the outer expanding sleeve 01 is V-shaped, so that an included angle A is formed between two side walls of the inner wall of the outer expanding sleeve 01 and the central axis of the outer expanding sleeve 01. The included angle A formed by the two side walls of the inner wall of the outer expanding sleeve 01 and the central axis of the outer expanding sleeve 01 is 6.71 degrees.

The outer wall of the eccentric inner expanding sleeve 02 is inverted V-shaped, so that an included angle B is formed between two side walls of the outer wall of the eccentric inner expanding sleeve 02 and the central axis of the eccentric inner expanding sleeve 02. An included angle B formed by two side walls of the outer wall of the eccentric inner expanding sleeve 02 and the central axis of the eccentric inner expanding sleeve 02 is 6.71 degrees.

Two side walls of the first locking piece 03 are inclined, so that the cross section of the first locking piece 03 is conical, and the two side walls of the first locking piece 03 are respectively contacted with the inner wall of the outward expansion sleeve 01 and the outer wall of the eccentric inward expansion sleeve 02. The first locking plate 03 is provided with a positioning hole for the screw 05 to pass through. Two lateral walls of second locking plate 04 are the slope form, make the transversal toper of personally submitting of second locking plate 04, and two lateral walls of second locking plate 04 contact with the inner wall of the cover 01 that rises outward and the outer wall of the cover 02 that rises in the eccentric respectively. And a locking hole corresponding to the positioning hole is formed in the second locking plate 04, and a thread matched with the fixing screw 05 is arranged in the locking hole. The screw 05 penetrates through the positioning hole in the first locking plate 03 and is in threaded connection with the locking hole in the second locking plate 04, the screw 05 is screwed to move the first locking plate 03 and the second locking plate 04 towards the middle, so that the side wall of the first locking plate 03 and the side wall of the second locking plate 04 are respectively tightly attached to the inner wall of the outer expansion sleeve 01 and the outer wall of the eccentric inner expansion sleeve 02, and the outer expansion sleeve 01 and the eccentric inner expansion sleeve 02 can be fixed.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.

Claims

1. An eccentric clamping bushing, characterized in that: including the cover that rises outward, eccentric internal expanding cover, first locking plate, second locking plate, the cover setting that rises outward is in the inside of the cover that rises outward in eccentric internal expanding, and the external diameter size of the cover that rises outward is less than the internal diameter size of the cover that rises outward, makes and forms the clearance between eccentric internal expanding cover and the cover that rises outward, and first locking plate and second locking plate subtend set up in the clearance that forms between cover and the cover that rises outward in eccentric internal expanding, and first locking plate passes through the screw fastening with the second locking plate to it is fixed mutually with eccentric internal expanding cover to rise outward the cover.

2. The eccentric tightening bushing of claim 1, wherein: the inner wall of the outer expansion sleeve is V-shaped, so that an included angle A is formed between the two side walls of the inner wall of the outer expansion sleeve and the central axis of the outer expansion sleeve.

3. The eccentric tightening bushing of claim 2, wherein: the included angle A formed by the two side walls of the inner wall of the outer expansion sleeve and the central axis of the outer expansion sleeve is 6.71 degrees.

4. The eccentric tightening bushing of claim 1, wherein: the outer wall of the eccentric inner expanding sleeve is inverted V-shaped, so that an included angle B is formed between two side walls of the outer wall of the eccentric inner expanding sleeve and the central axis of the eccentric inner expanding sleeve.

5. The eccentric tightening bushing of claim 4, wherein: and an included angle B formed by two side walls of the outer wall of the eccentric inner expanding sleeve and the central axis of the eccentric inner expanding sleeve is 6.71 degrees.

6. The eccentric tightening bushing of claim 1, wherein: two lateral walls of first locking plate are the slope form, make the transversal toper of personally submitting of first locking plate, and two lateral walls of first locking plate contact with the inner wall of the cover that rises outward and the outer wall of the eccentric cover that rises in respectively.

7. The eccentric tightening bushing of claim 6, wherein: the first lock piece is provided with a positioning hole for a screw to pass through.

8. The eccentric tightening bushing of claim 1, wherein: two lateral walls of second locking plate are the slope form, make the transversal toper of personally submitting of second locking plate, and two lateral walls of second locking plate contact with the inner wall of the cover that rises outward and the outer wall of the eccentric cover that rises in respectively.

9. The eccentric tightening bushing of claim 8, wherein: and the second locking plate is provided with a locking hole corresponding to the positioning hole, and a thread matched with the fixing screw is arranged in the locking hole.

10. The eccentric tightening bushing of claim 1, wherein: the eccentricity between the inner circle center and the outer circle center of the eccentric inner expanding sleeve is 1 mm.