CN213671130U - Special tool for quickly mounting taper sleeve on rolling roll shaft of rolling mill - Google Patents
Special tool for quickly mounting taper sleeve on rolling roll shaft of rolling mill Download PDFInfo
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- CN213671130U CN213671130U CN202022539533.0U CN202022539533U CN213671130U CN 213671130 U CN213671130 U CN 213671130U CN 202022539533 U CN202022539533 U CN 202022539533U CN 213671130 U CN213671130 U CN 213671130U
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- roll shaft
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Abstract
The utility model provides a specialized tool of quick installation taper sleeve on rolling mill roll axle, including the cylinder body: one end part of the cylinder body is concentrically provided with an internal thread hole corresponding to the external thread section of the roll shaft and a hydraulic cavity which is positioned on the periphery of the internal thread hole and has an annular groove structure, and the internal thread hole and the hydraulic cavity both extend along the axial direction of the cylinder body; the sleeve type piston is connected with the hydraulic cavity in a sliding and sealing mode, and can extend out of the cylinder body to abut against the taper sleeve along the axial direction of the cylinder body; and the compression elastic piece is arranged in the hydraulic cavity in a precompressed manner, is connected with one end of the piston, which is far away from the bottom of the hydraulic cavity, and applies reset elastic force inwards along the cylinder body to the piston. The utility model is simple in operation, use manpower sparingly, can install the taper sleeve on the roll axle fast.
Description
Technical Field
The utility model relates to an installation taper sleeve's auxiliary device technical field on the roll axle, concretely relates to specialized tool of quick installation taper sleeve on roll axle of rolling mill.
Background
The rolling mill is a device for deforming metal by extruding two rollers, so that the rollers can be subjected to larger friction force and pressure, and are wearing parts, and the rollers need to be frequently replaced in the production process to ensure the quality of rolled pieces. In particular to a roller of a finishing mill for wire rods, in order to reduce the wear rate of the roller, the roller adopts hard alloy and is made into a roller ring structure.
At present, a roll collar is connected to a roll shaft through a taper sleeve in a tensioning mode, and required torque is transmitted through friction force between the tensioning sleeve and a roll. In order to meet the requirement of friction torque, a large force is required to press the taper sleeve in when the roll collar is installed. In the prior art, an operator usually directly uses a hammer to tighten a taper sleeve when changing a roll collar. The disadvantages of this approach are:
A) the hammer is easy to smash on the external thread of the roll shaft to damage the roll;
B) long-term beating of the taper sleeve causes the stressed part of the taper sleeve to deform, and the use of the taper sleeve is influenced;
C) the taper sleeve is slow in installation speed, and wastes time and labor.
Therefore, how to provide a mounting tool for mounting a taper sleeve on a roll shaft, which can simplify the operation, save labor, and improve the mounting speed and mounting quality is a technical 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 specialized tool of quick installation taper sleeve on rolling mill roll axle, its easy operation uses manpower sparingly, and taper sleeve installation rate is fast.
In order to achieve the above object, the utility model provides a specialized tool of taper sleeve is installed fast on rolling mill roll axle, include:
one end of the cylinder body is concentrically provided with an internal thread hole corresponding to the external thread section of the roll shaft and a hydraulic cavity which is positioned on the periphery of the internal thread hole and has an annular groove structure, and the internal thread hole and the hydraulic cavity both extend along the axial direction of the cylinder body;
the sleeve type piston is connected with the hydraulic cavity in a sliding and sealing mode, and can extend out of the cylinder body to abut against the taper sleeve along the axial direction of the cylinder body;
and the compression elastic piece is arranged in the hydraulic cavity in a precompressed manner, is connected with one end of the piston, which is far away from the bottom of the hydraulic cavity, and applies reset elastic force inwards along the cylinder body to the piston.
Preferably, the compression elastic part is a compression spring, and the compression spring is sleeved in the hydraulic cavity.
Preferably, the piston comprises a piston column and a piston body which are integrally connected, the piston body is positioned at one end of the piston column close to the bottom of the hydraulic cavity, and the diameter of the piston body is larger than that of the piston column;
the piston body is connected with the hydraulic cavity in a sealing and sliding mode, and one end, far away from the bottom of the hydraulic cavity, of the piston body is connected with the compression spring.
Preferably, the hydraulic cylinder further comprises a piston column guide cylinder, one end of the piston column guide cylinder is fixedly connected with the end face of the cylinder body on the periphery of the hydraulic cavity through a screw, and the other end of the piston column guide cylinder extends along the axial direction of the cylinder body;
the piston column guide cylinder is in clearance fit with the piston column extending out of the cylinder body so as to guide the piston column extending out of the cylinder body.
Preferably, one end of the piston column guide cylinder, which is far away from the cylinder body, extends along the axial direction of the cylinder body to be abutted against the end face of the roll collar.
Preferably, one end of the piston column guide cylinder, which is close to the cylinder body, is inserted into the hydraulic cavity; one end of the compression spring is abutted against the piston column guide cylinder, and the other end of the compression spring is abutted against the piston body.
Preferably, an oil inlet hole is formed in the other end, opposite to the hydraulic cavity, of the cylinder body, and the oil inlet hole is communicated with the hydraulic cavity.
Preferably, the other end of the cylinder body opposite to the hydraulic pressure chamber is provided with a handle.
The utility model discloses following beneficial effect has:
when the utility model is used, firstly, a special tool for installing the taper sleeve is installed on the roll shaft through the threaded matching of the internal thread hole of the cylinder body and the external thread section of the roll shaft; then, high-pressure hydraulic oil is supplied to a hydraulic cavity of the cylinder body to drive the piston to extend out of the cylinder body along the axial direction of the cylinder body and abut against the taper sleeve, so that the taper sleeve is pressed into an inner hole of the roll collar, and the roll collar is tensioned on the roll shaft; and finally, when the taper sleeve is tensioned in place, hydraulic oil is discharged, the piston retracts into the cylinder body under the reset elasticity of the compression elastic piece, the installation is completed, and the special tool is taken down.
According to the above technical scheme, the utility model discloses can install the taper sleeve fast on the roll axle. The shape of the sleeve type piston is matched with the shape of the stress surface of the taper sleeve, so that the taper sleeve is uniformly stressed and the installation quality is good.
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 roll collar mounted on a roll shaft according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a taper sleeve according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a special tool for quickly mounting a taper sleeve on a rolling roll shaft of a rolling mill according to an embodiment of the present invention;
FIG. 4 is a right side view of FIG. 3;
fig. 5 is a schematic view of the special tool for quickly mounting a taper sleeve on a roll shaft of a rolling mill according to an embodiment of the present invention assembled on the roll shaft;
fig. 6 is a schematic view illustrating a taper sleeve installation process of a special tool for quickly installing taper sleeves on a roll shaft of a rolling mill according to an embodiment of the present invention;
reference numerals
1-a roll collar; 2-taper sleeve; 3-roll axis; 4-cylinder body; 5-a piston; 6-oil inlet hole; 7-compression spring; 8-an internal threaded hole; 9-a hydraulic chamber; 10-a piston column; 11-a piston body; 12-a piston-cylinder guide cylinder; 13-a handle; 14-external thread section.
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 2, fig. 1 is a schematic structural view of a roll collar installed on a roll shaft according to an embodiment of the present invention, and fig. 2 is a schematic structural view of a taper sleeve according to an embodiment of the present invention.
The roller ring 1 is connected to a roller shaft 3 through a taper sleeve 2 in a tensioning mode, required torque is transmitted through friction force between the taper sleeve 2 and the roller ring, and when the roller ring 1 is installed, the taper sleeve 2 is pressed into an inner hole of the roller ring 3 through large force. The externally threaded section 14 of the roll shaft 3 is externally threaded.
Referring to fig. 3, fig. 3 is a schematic structural diagram of a special tool for quickly mounting a taper sleeve on a rolling roll shaft of a rolling mill according to an embodiment of the present invention.
The utility model discloses a disclosed mounting taper sleeve's specialized tool fast on rolling mill roll axle, including cylinder body 4, telescopic piston 5, compression elastic component 7. Wherein:
an internal thread hole 8 corresponding to the external thread section of the roll shaft and a hydraulic cavity 9 which is positioned at the periphery of the internal thread hole and has an annular groove structure are concentrically arranged at one end part of the cylinder body 4, and the internal thread hole 8 and the hydraulic cavity 9 both extend along the axial direction of the cylinder body 4;
the sleeve type piston 5 is connected with the hydraulic cavity 9 in a sliding and sealing mode, and the piston 5 can extend out of the cylinder body 4 along the axial direction of the cylinder body 4 and is used for abutting against the taper sleeve 2;
and the compression elastic element 7 is arranged in the hydraulic cavity 9 in a precompressed mode, and the compression elastic element 7 is connected with one end, far away from the bottom of the hydraulic cavity, of the piston 5 to apply resetting elastic force inwards along the cylinder body to the piston 5. The compression elastic member 7 is preferably a compression spring sleeved in the hydraulic chamber 9, and the piston 5 automatically retracts into the cylinder 4 under the action of the return elastic force of the compression spring.
The working process is as follows:
firstly, a special tool is installed on the roller shaft 3 through the threaded matching of the internal thread hole 8 of the cylinder body and the external thread section 14 of the roller shaft;
then, high-pressure hydraulic oil is supplied to the cylinder body hydraulic cavity 9 to drive the piston 5 to extend out along the axial direction of the cylinder body 4 and abut against the taper sleeve 2, so that the taper sleeve 2 is pressed into the inner hole of the roller ring 1, and the roller ring is tensioned on the roller shaft;
finally, when the taper sleeve 2 is tensioned in place, the hydraulic oil is discharged, the piston 5 retracts into the cylinder body 4 under the reset elasticity of the compression elastic piece 7, the installation is completed, and the special tool is taken down.
Can see by above-mentioned embodiment, the utility model discloses can install the taper sleeve on the roll axle fast, easy and simple to handle, labour saving and time saving. It is understood that the shape of the sleeve-type piston 5 is matched with the shape of the stress surface of the taper sleeve 2, so that the taper sleeve 2 is stressed uniformly and the installation quality is good.
In order to further optimize the technical solution, the present embodiment is further modified based on the above embodiments, in the present embodiment, the piston 5 includes a piston column 10 and a piston body 11 that are integrally connected, the piston body 11 is located at one end of the piston column 10 near the bottom of the hydraulic chamber, and the diameter of the piston body 11 is larger than the diameter of the piston column 10. The piston body 11 is in a sealed sliding connection with the hydraulic chamber 9.
More preferably, the utility model discloses still include piston post guide cylinder 12. One end of the piston column guide cylinder 12 is fixedly connected with the end surface of the cylinder body on the periphery of the hydraulic cavity 9 through a screw, and the other end extends along the axial direction of the cylinder body 4. The piston post guide cylinder 12 is in clearance fit with the piston post extending out of the cylinder body 4 to guide the piston post extending out of the cylinder body.
Referring to fig. 3, the piston cylinder 10 is extended out of the cylinder 4 in the axial direction of the cylinder 4 by the thrust of the hydraulic oil. The piston 5 realizes axial guidance in the hydraulic cavity 9 through the piston body 11 on one hand, and realizes guidance of the piston column 11 extending out of the cylinder body through the piston column guide cylinder 12 on the other hand, so that the piston column 10 can stably press the taper sleeve 2.
More preferably, the end of the piston rod guide 12 away from the cylinder 4 extends in the axial direction of the cylinder 4 to abut against the end face of the roll collar 1.
Referring to fig. 3, in the process of extending the piston post 10, a pushing force is formed between the piston post guide cylinder 12 and the roller ring 1, so as to press and mount the taper sleeve 2.
More preferably, to facilitate installation of the compression spring. One end of the piston column guide cylinder 12 close to the cylinder body 4 is inserted into the hydraulic cavity 9, one end of the compression spring is abutted against the piston column guide cylinder 12, and the other end of the compression spring is abutted against one end of the piston body 11 far away from the bottom of the hydraulic cavity.
Referring to fig. 3, in order to supply hydraulic oil into the hydraulic chamber 9, an oil inlet hole 6 is formed at the other end of the cylinder 4 opposite to the hydraulic chamber 9, and the oil inlet hole 6 is communicated with the hydraulic chamber 9. To facilitate the gripping of the cylinder 4, the other end of the cylinder 4 opposite the hydraulic chamber 9 is provided with a handle 13.
Referring to fig. 3, 5 and 6, as shown in fig. 5, the special tool for quickly installing the taper sleeve according to the embodiment is assembled on the roll shaft, at this time, the piston retracts into the lower cylinder under the restoring elastic force of the compression elastic member, and the distance between the piston and the bottom of the hydraulic cavity is zero. As shown in fig. 6, hydraulic oil is supplied into the hydraulic cavity, the piston moves away from the bottom of the hydraulic cavity along the axial direction of the cylinder body and presses against the taper sleeve, and the movement direction of the piston is the direction indicated by the arrow in fig. 6.
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 (8)
1. A special tool for quickly installing taper sleeves on a rolling shaft of a rolling mill is characterized by comprising:
one end of the cylinder body is concentrically provided with an internal thread hole corresponding to the external thread section of the roll shaft and a hydraulic cavity which is positioned on the periphery of the internal thread hole and has an annular groove structure, and the internal thread hole and the hydraulic cavity both extend along the axial direction of the cylinder body;
the sleeve type piston is connected with the hydraulic cavity in a sliding and sealing mode, and can extend out of the cylinder body to abut against the taper sleeve along the axial direction of the cylinder body;
and the compression elastic piece is arranged in the hydraulic cavity in a precompressed manner, is connected with one end of the piston, which is far away from the bottom of the hydraulic cavity, and applies reset elastic force inwards along the cylinder body to the piston.
2. The special tool for quickly installing the taper sleeve on the roll shaft of the rolling mill as claimed in claim 1, wherein: the compression elastic piece is a compression spring, and the compression spring is sleeved in the hydraulic cavity.
3. The special tool for quickly installing the taper sleeve on the roll shaft of the rolling mill as claimed in claim 2, wherein: the piston comprises a piston column and a piston body which are integrally connected, the piston body is positioned at one end of the piston column close to the bottom of the hydraulic cavity, and the diameter of the piston body is larger than that of the piston column;
the piston body is connected with the hydraulic cavity in a sealing and sliding mode, and one end, far away from the bottom of the hydraulic cavity, of the piston body is connected with the compression spring.
4. The special tool for quickly installing the taper sleeve on the roll shaft of the rolling mill as claimed in claim 3, wherein: the piston column guide cylinder is fixedly connected with the end face of the cylinder body on the periphery of the hydraulic cavity through a screw, and the other end of the piston column guide cylinder extends along the axial direction of the cylinder body;
the piston column guide cylinder is in clearance fit with the piston column extending out of the cylinder body so as to guide the piston column extending out of the cylinder body.
5. The special tool for quickly installing the taper sleeve on the roll shaft of the rolling mill as claimed in claim 4, wherein: one end of the piston column guide cylinder, which is far away from the cylinder body, extends along the axial direction of the cylinder body to be abutted against the end face of the roll collar.
6. The special tool for quickly installing the taper sleeve on the roll shaft of the rolling mill as claimed in claim 5, wherein: one end of the piston column guide cylinder, which is close to the cylinder body, is inserted into the hydraulic cavity; one end of the compression spring is abutted against the piston column guide cylinder, and the other end of the compression spring is abutted against the piston body.
7. The special tool for quickly installing the taper sleeve on the roll shaft of the rolling mill as claimed in claim 1, wherein: and an oil inlet hole is formed in the other end part, opposite to the hydraulic cavity, of the cylinder body, and the oil inlet hole is communicated with the hydraulic cavity.
8. The special tool for quickly installing the taper sleeve on the roll shaft of the rolling mill as claimed in claim 1, wherein: and the other end of the cylinder body, which is opposite to the hydraulic cavity, is provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022539533.0U CN213671130U (en) | 2020-11-05 | 2020-11-05 | Special tool for quickly mounting taper sleeve on rolling roll shaft of rolling mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022539533.0U CN213671130U (en) | 2020-11-05 | 2020-11-05 | Special tool for quickly mounting taper sleeve on rolling roll shaft of rolling mill |
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| Publication Number | Publication Date |
|---|---|
| CN213671130U true CN213671130U (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022539533.0U Active CN213671130U (en) | 2020-11-05 | 2020-11-05 | Special tool for quickly mounting taper sleeve on rolling roll shaft of rolling mill |
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| Country | Link |
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| CN (1) | CN213671130U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857257A (en) * | 2021-11-08 | 2021-12-31 | 哈工大机器人智能制造有限公司 | Automatic installation device and installation method for roll collar of rolling mill |
| CN116020872A (en) * | 2022-12-30 | 2023-04-28 | 汉威广园(广州)机械设备有限公司 | Roller ring locking assembly and rolling mill with same |
| CN116213467A (en) * | 2023-03-09 | 2023-06-06 | 中国机械总院集团北京机电研究所有限公司 | Die clamping mechanism and roll forging machine |
-
2020
- 2020-11-05 CN CN202022539533.0U patent/CN213671130U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113857257A (en) * | 2021-11-08 | 2021-12-31 | 哈工大机器人智能制造有限公司 | Automatic installation device and installation method for roll collar of rolling mill |
| CN116020872A (en) * | 2022-12-30 | 2023-04-28 | 汉威广园(广州)机械设备有限公司 | Roller ring locking assembly and rolling mill with same |
| CN116020872B (en) * | 2022-12-30 | 2023-10-27 | 汉威广园(广州)机械设备有限公司 | Roller ring locking assembly and rolling mill with same |
| CN116213467A (en) * | 2023-03-09 | 2023-06-06 | 中国机械总院集团北京机电研究所有限公司 | Die clamping mechanism and roll forging machine |
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