CN214556258U

CN214556258U - Roller ring tensioning taper sleeve

Info

Publication number: CN214556258U
Application number: CN202120808758.3U
Authority: CN
Inventors: 陈义
Original assignee: Anhui Sinosteel Nuotai Engineering Technology Co ltd
Current assignee: Anhui Sinosteel Nuotai Engineering Technology Co ltd
Priority date: 2021-04-20
Filing date: 2021-04-20
Publication date: 2021-11-02
Anticipated expiration: 2031-04-20

Abstract

The utility model provides a roller ring rises and tightly bores cover, including taper sleeve body and lug, the taper sleeve body is the drum that an interior disc is the conical surface, the taper sleeve body is kept away from be provided with at least twice slot along circumference on the section of thick bamboo wall of lug one end, the slot is from taper sleeve body cuff towards lug direction axial extension. The taper sleeve has larger expansion size and can be better combined with the roll collar; under the same expansion size requirement, the cone is installed too and is stressed less, so that the deformation of the cone sleeve is avoided, and when the cone sleeve is disassembled, the cone sleeve can be easily separated from an inner hole of the roller ring, so that the scratch of the cone sleeve and the roller ring is avoided.

Description

Roller ring tensioning taper sleeve

Technical Field

The utility model relates to a steel rolling equipment technical field, concretely relates to roller ring rises and tightly bores cover.

Background

The rolling mill is used as main equipment on a steel hot rolling production line and is used for rolling and forming blank pieces. The roll collar is an important working part on a rolling mill, and a steel material is rolled by using pressure generated when a pair or a group of roll collars roll.

The taper sleeve is a part arranged between the roller ring and the roller shaft, the taper sleeve and the roller ring are assembled as shown in figure 2, the taper sleeve a is a cylinder with a conical inner surface, when the taper sleeve is assembled, the taper sleeve a is pressed on the roller shaft b, the taper sleeve a expands under the radial force of the roller shaft b, so that the roller ring c is connected to the roller shaft b in a tensioning mode, and the required torque is transmitted through the friction force between the taper sleeve a and the roller ring c.

The traditional taper sleeve is not easy to press in place in actual use, and when the taper sleeve is not pressed in place, the expansion size of the traditional taper sleeve is small, and the roll collar is not firmly installed. Therefore, in the prior art, when the roller ring is assembled, very large pressure must be applied to the taper sleeve, the taper sleeve is easy to deform, the deformed taper sleeve is difficult to disassemble, the taper sleeve can be separated from the roller ring only by using very large force, the disassembly is laborious, and the taper sleeve and the roller ring are easy to scratch.

Therefore, how to expand the taper sleeve in place by using smaller pressure becomes a problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model provides a roller ring rises and tightly bores cover to it is huge to solve traditional taper sleeve inflation and target in place required pressure, leads to the taper sleeve to warp and is difficult to dismantle the problem of roller ring.

In order to realize the above-mentioned purpose, the utility model provides a roller ring rises and tightly bores cover, including taper sleeve body and lug, the taper sleeve body is the drum that an interior disc is the conical surface, a serial communication port, the taper sleeve body is kept away from be provided with at least twice slot along circumference on the section of thick bamboo wall of lug one end, the slot is from taper sleeve body cuff towards lug direction axial extension.

Preferably, the at least two cutting seams are uniformly arranged along the circumferential direction of the taper sleeve body.

Preferably, the end of the cutting seam is provided with a seam stopping hole which is communicated with the cutting seam.

Preferably, the taper sleeve body is provided with an anti-rotation surface in an inner hole at one end of the lug.

Preferably, the cylinder wall of the taper sleeve body is provided with at least one annular groove; the at least one annular groove is sequentially arranged along the axial direction of the taper sleeve body and is intersected with the at least two cutting seams; the distance from the at least one annular groove to the opening of the taper sleeve body is matched with the thickness of the roll collar to be installed.

Preferably, the number of the annular grooves is two.

The utility model discloses following beneficial effect has:

when the roll collar is installed, pressure is applied to the taper sleeve, and due to the fact that the taper exists on the inner circular surface of the taper sleeve, when the roll shaft gradually enters the taper sleeve, outward radial force can be applied to the inner circular surface of the taper sleeve, so that the taper sleeve which cuts a seam is enabled to uniformly expand. Compare with traditional taper sleeve, under the same inflation size requirement, taper sleeve required pressure when the installation is littleer, avoided the taper sleeve to warp for can dismantle the taper sleeve from the collars hole with the taper sleeve more easily when dismantling the taper sleeve and break away from out, avoid taper sleeve and collars fish tail.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application. In the drawings:

fig. 1 is a schematic structural view of a roller ring tensioning taper sleeve according to an embodiment of the present invention;

fig. 2 is an assembly view of the roll shaft, the taper sleeve and the roll collar according to the embodiment of the present invention;

reference numerals

1-taper sleeve body; 2-a lug;

11-slotting; 12-a seam-stopping hole; 13-a first annular groove; 14-a second annular groove; 15-rotation prevention surface;

a-a taper sleeve; b-a roll axis; c-a roll collar; d-a nut;

b 1-axial end plane.

Detailed Description

In order to make the technical solutions and advantages of the embodiments of the present application more clearly understood, the following further detailed description of the embodiments of the present application with reference to the drawings makes it clear that the described embodiments are only a part of the embodiments of the present application, and are not an exhaustive list of all the embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.

Referring to fig. 1 and fig. 2, a roller ring tensioning taper sleeve includes a taper sleeve body 1 and a lug 2, wherein the taper sleeve body 1 is a cylinder with a conical inner surface. Four cutting seams 11 are uniformly arranged on the cylinder wall of one end, far away from the lug 2, of the taper sleeve body 1 along the circumferential direction, and the cutting seams 11 axially extend from the sleeve opening of the taper sleeve body towards the lug 2.

When the roll collar is installed, pressure is applied to the taper sleeve a, and due to the fact that the taper exists on the inner circular surface of the taper sleeve a, when the roll shaft b gradually enters the taper sleeve a, outward radial force is applied to the inner circular surface of the taper sleeve a, and the taper sleeve a which cuts the seam is enabled to expand uniformly. Because the taper sleeve a is provided with the slit 11, the expansion size of the taper sleeve is large, and the taper sleeve can be well combined with the roll collar c, so that the roll collar is expanded in place. In addition, if the taper of the taper sleeve a and the taper of the roll shaft b are different during installation, the taper sleeve can follow the taper of the roll shaft b along with the expansion or the closing of the slit 11 and is actively matched with the roll shaft, the fastening force of the taper sleeve and the roll collar is increased, and the phenomenon that the roll collar cannot be pressed is solved.

In the concrete embodiment, traditional taper sleeve is when pressurizeing, and pressure need reach 500Bar, and taper sleeve inflation size can reach the designing requirement, and adopts the utility model provides a taper sleeve, actual pressure reaches 350Bar, and taper sleeve inflation size has satisfied the designing requirement.

It is difficult to understand, same model rolling mill adopts under the same taper sleeve inflation size requirement the utility model provides a during the taper sleeve, add pressure littleer, littleer adding pressure has avoided the taper sleeve to warp, dismantles the taper sleeve and can break away from out with the taper sleeve follow collar hole more easily dismantling at the dismantlement taper sleeve, avoids taper sleeve and collar fish tail. Specifically, when the taper sleeve is disassembled, the special disassembling tool is matched with the lug 2 to pull the taper sleeve out of the inner hole of the roller ring.

Preferably, the slit 11 is provided with a slit stop hole 12 at the end, and the slit stop hole 12 is communicated with the slit 11. The center line of the width direction of the slot 11 passes through the circle center of the seam-stopping hole, so that stress concentration can be prevented, and deformation of the taper sleeve body is avoided.

Preferably, the inner hole of the taper sleeve body 1 at one end of the lug 2 is provided with an anti-rotation surface 15 for matching with the shaft end plane b1 of the roll shaft to prevent the taper sleeve from slipping with the roll shaft. More preferably, a locking nut d is further provided on the roll shaft b to prevent the taper sleeve from withdrawing.

In a further technical scheme, two annular grooves are formed in the cylinder wall of the taper sleeve body, wherein the first annular groove 13 and the second annular groove 14 are sequentially arranged in parallel along the axial direction of the taper sleeve body 1 and are intersected with the cutting seam 11. The annular groove is intersected with the slot 11, so that stress concentration is eliminated, and the situations of roller ring cracking and the like caused when the taper sleeve is tensioned are avoided. The first ring grooves 13 are adapted to roll collars of thickness H1 and the second ring grooves 14 are adapted to roll collars of thickness H2.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present application without departing from the spirit and scope of the application. Thus, if such modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is intended to include such modifications and variations as well.

Claims

1. The roller ring tensioning taper sleeve comprises a taper sleeve body and a lug, wherein the taper sleeve body is a cylinder with a conical inner surface, and the roller ring tensioning taper sleeve is characterized in that at least two cutting seams are arranged on the wall of the taper sleeve body, which is far away from one end of the lug, along the circumferential direction, and the cutting seams axially extend from the sleeve opening of the taper sleeve body towards the lug.

2. The roller ring tensioning taper sleeve as claimed in claim 1, wherein the at least two slots are uniformly arranged along the circumferential direction of the taper sleeve body.

3. The roller ring tensioning taper sleeve as claimed in claim 1, wherein a seam-stopping hole is arranged at the end of the slit and is communicated with the slit.

4. The roller ring tensioning taper sleeve as claimed in claim 1, wherein an inner bore of the taper sleeve body at one end of the lug is provided with an anti-rotation surface.

5. The roller ring tensioning taper sleeve as claimed in any one of claims 1 to 4, wherein at least one annular groove is formed on the wall of the taper sleeve body; the at least one annular groove is sequentially arranged along the axial direction of the taper sleeve body and is intersected with the at least two cutting seams; the distance from the at least one annular groove to the opening of the taper sleeve body is matched with the thickness of the roll collar to be installed.

6. The roller ring tensioning cone as claimed in claim 5, wherein the number of annular grooves is two.