CN213671129U - Special tool for rapidly disassembling taper sleeve on rolling mill roll shaft - Google Patents
Special tool for rapidly disassembling taper sleeve on rolling mill roll shaft Download PDFInfo
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- CN213671129U CN213671129U CN202022530779.1U CN202022530779U CN213671129U CN 213671129 U CN213671129 U CN 213671129U CN 202022530779 U CN202022530779 U CN 202022530779U CN 213671129 U CN213671129 U CN 213671129U
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- cylinder body
- piston
- taper sleeve
- hydraulic cavity
- roll shaft
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Abstract
The utility model provides a specialized tool of taper sleeve is dismantled fast on rolling mill roll axle, include: the piston is arranged in the cylinder body; the piston is arranged in the hydraulic cavity in a sealing sliding mode, the piston and the cylinder body can slide in opposite directions along the axial direction of the cylinder body, and an inner hole matched with the outer thread section of the roll shaft is formed in the center of the piston; the compression elastic piece is arranged in the hydraulic cavity in a pre-compression mode, is connected with one end, far away from the bottom of the hydraulic cavity, of the piston and applies reset elastic force inwards along the cylinder body to the piston; the open end of cylinder body is provided with taper sleeve card and holds the portion, taper sleeve card is held the portion and is included: and the clamping jaws are sequentially arranged on the inner circumferential surface of the opening end of the cylinder body along the axial direction of the cylinder body and are matched with the shape of the taper sleeve petal table, and the annular grooves are used for accommodating the taper sleeve petal table. The utility model discloses a jack catch and the cooperation of taper sleeve petal platform shape of taper sleeve card clamping part are taken the awl out from the collars, and then dismantle the taper sleeve fast.
Description
Technical Field
The utility model relates to a dismantle auxiliary device technical field of taper sleeve on the roller axle, concretely relates to dismantle specialized tool of taper sleeve fast on the roller 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. After long-term use, the taper sleeve is tightly connected with the roll shaft and the roll collar in an interference fit manner. If the device needs to be disassembled and replaced, the disassembly operation is very inconvenient. In the prior art, a method for quickly disassembling a taper sleeve on a roll shaft is not available.
Therefore, how to rapidly disassemble the taper sleeve on the roller shaft becomes a technical problem to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
To the defect among the prior art, the utility model provides a specialized tool of taper sleeve is dismantled fast on rolling mill roll axle, its easy operation, can dismantle the taper sleeve fast.
In order to achieve the above object, the present invention provides the following technical solutions:
a specialized tool for rapidly disassembling taper sleeves on a rolling mill roll shaft is characterized by comprising: the piston is arranged in the cylinder body;
one end of the cylinder body is open, a hydraulic cavity communicated with the cylinder body opening is formed in the center of the cylinder body, the hydraulic cavity extends along the axial direction of the cylinder body, and the diameter of the opening end of the cylinder body is larger than that of the hydraulic cavity;
the open end of cylinder body is provided with taper sleeve card and holds the portion, taper sleeve card is held the portion and is included:
the clamping jaws matched with the shape of the taper sleeve petal table and the annular grooves used for accommodating the taper sleeve petal table are sequentially arranged on the inner circumferential surface of the opening end of the cylinder body along the axial direction of the cylinder body; wherein the content of the first and second substances,
the number of the clamping jaws corresponds to that of the taper sleeve petal tables and is circumferentially arranged along the inner circumferential surface of the cylinder body;
the piston is arranged in the hydraulic cavity in a sealing sliding mode, the piston and the cylinder body can slide in opposite directions along the axial direction of the cylinder body, and an inner hole matched with the outer thread section of the roll shaft is formed in the center of the piston;
the compression elastic piece is arranged in the hydraulic cavity in a precompressed mode, and the compression elastic piece is connected with one end, far away from the bottom of the hydraulic cavity, of the piston to apply reset elastic force inwards along the cylinder body to the piston.
Preferably, the taper sleeve clamping part further comprises a limiting pin for prompting that the clamping jaw and the taper sleeve petal table are clamped in place;
the limiting pin is fixedly inserted on the inner circumferential surface of the annular groove along the radial direction of the cylinder body; and the limiting pin and one circumferential end part of one of the clamping jaws are positioned on the same straight line along the axial direction of the cylinder body.
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 special tool further comprises a round nut for locking the compression spring in the hydraulic cavity, and the round nut is in threaded connection with the inner circumferential surface of the hydraulic cavity;
one end of the compression spring is abutted against the round nut, and the other end of the compression spring is abutted against the piston body.
Preferably, the piston further comprises a dustproof pad, and the dustproof pad is arranged between the piston and the round nut.
Preferably, a plastic sleeve for protecting the external thread of the roller shaft is attached to the inner wall of the inner hole of the piston.
Preferably, the other end portion of the cylinder body opposite to the open end thereof is provided with an oil inlet hole, which is communicated with the hydraulic pressure chamber.
Preferably, a handle is provided on an outer circumferential surface of the cylinder body.
The utility model discloses following beneficial effect has:
under the action of the reset elastic force of the compression elastic piece, the piston retracts into the hydraulic cavity of the cylinder body. When the utility model is used, firstly, the position of the cylinder body is adjusted, so that the jack catch at the opening end of the cylinder body and the petal table of the taper sleeve to be disassembled are staggered in the circumferential direction, namely, the jack catch of the cylinder body can pass through the gap between the adjacent petal tables of the taper sleeve along the axial direction of the cylinder body; then, a disassembling tool is sleeved on the roller shaft through the matching of the inner hole of the piston and the external thread section of the roller shaft, so that the end surface of the piston is abutted against the shaft shoulder of the external thread section of the roller shaft, and at the moment, the clamping jaw is positioned in front of the cone sleeve petal table in the axial direction of the cylinder body; rotating the cylinder body again to enable the clamping jaws to be opposite to the petal tables in the axial direction of the cylinder body, forming axial limit on the clamping jaws 11 by the taper sleeve petal tables 8, and enabling the petal tables to be located in the annular grooves of the cylinder body at the moment; and finally, supplying high-pressure hydraulic oil into the hydraulic cavity of the cylinder body, wherein the piston is abutted against the shaft shoulder of the roll shaft, so that the piston of the cylinder body moves backwards in the opposite direction, the claws are matched with the petal table in shape to drive the taper sleeve to move away from the roll collar, and the taper sleeve is further pulled out from the inner hole of the roll collar.
According to the above technical scheme, the utility model discloses utilize jack catch and taper sleeve petal platform shape cooperation, exert outside power to taper sleeve petal platform in the axial, the jack catch drives the taper sleeve and takes out from the collars hole under the effect of hydraulic pressure to pull down the taper sleeve fast. The taper sleeve is stressed uniformly in the dismounting process, and the damage of the taper sleeve in the dismounting process is avoided.
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 rapidly disassembling a taper sleeve on a rolling roll shaft of a rolling mill according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of a cylinder body according to an embodiment of the present invention;
FIG. 5 is a left side view of FIG. 4;
FIG. 6 is a schematic structural view of the clamping of the jack catch and the taper sleeve petal table in the embodiment of the present invention;
fig. 7 is a schematic structural diagram of a piston according to an embodiment of the present invention;
FIG. 8 is a schematic view of a special tool according to an embodiment of the present invention mounted on a roll shaft;
fig. 9 is a schematic view of a process of detaching the taper sleeve by using the special tool according to the embodiment of the present invention.
Reference numerals
1-a roll collar; 2-taper sleeve; 3-roll axis; 4-external thread section; 5-petal table; 6-cylinder body; 7-a piston; 8-compressing the elastic member; 9-a hydraulic chamber; 10-a taper sleeve clamping part; 11-a jaw; 12-an annular groove; 13-a limit pin; 14-an inner bore; 15-a piston column; 16-a piston body; 17-round nuts; 18-a dust-proof pad; 19-threading; 20-plastic sheathing; 21-oil inlet hole; 22-a handle; 23-gap; 24-limiting pin mounting holes.
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.
In the present embodiment, the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description, but do not indicate or imply that the indicated devices or elements must have a specific orientation, be configured or operated in a specific orientation, and thus, should not be construed as limiting the present invention.
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 1, and the taper sleeve 2 is pulled out of an inner hole of the roller ring 1 outwards through large force when the roller ring 1 is replaced. The roll shaft 3 has an externally threaded section 4. The taper sleeve 2 is provided with a petal platform 5.
Referring to fig. 3 to fig. 6, fig. 3 is a schematic structural diagram of a special tool for quickly detaching a taper sleeve from a roll shaft of a rolling mill according to an embodiment of the present invention; fig. 4 is a schematic structural diagram of a cylinder body according to an embodiment of the present invention; FIG. 5 is a left side view of FIG. 4; fig. 6 is a schematic view of the structure of the clamping jaw and the taper sleeve petal table clamp in the embodiment of the utility model.
The utility model discloses a disclosed specialized tool who dismantles taper sleeve fast on rolling mill roll axle includes: a cylinder 6, a piston 7 and a compression spring 8. Wherein:
one end of the cylinder body 6 is opened, the center of the cylinder body is provided with a hydraulic cavity 9 communicated with the opening of the cylinder body, the hydraulic cavity 9 extends along the axial direction of the cylinder body 6, and the diameter of the opening end of the cylinder body is larger than that of the hydraulic cavity 9;
the piston 7 is arranged in the hydraulic cavity 9 in a sealing and sliding manner, the piston 7 and the cylinder body 6 can slide in opposite directions along the axial direction of the cylinder body 9, and the center of the piston 7 is provided with an inner hole 14 matched with the outer thread section 4 of the roll shaft;
a compression spring 8 is arranged precompressed in the hydraulic chamber 9, and the compression spring 8 is connected to the end of the piston remote from the bottom of the hydraulic chamber and exerts a return spring force on the piston 7 inwardly along the cylinder. The compression spring 8 is preferably a compression spring which is housed in a hydraulic chamber 9.
A taper sleeve clamping part 10 is arranged at the opening end of the cylinder body 6. The taper sleeve retaining part 10 includes: the clamping jaws 11 which are matched with the shape of the taper sleeve petal platform and the annular groove 12 for accommodating the taper sleeve petal platform are sequentially arranged on the inner circumferential surface of the opening end of the cylinder body along the axial direction of the cylinder body. Wherein, the number of the claws 11 corresponds to the number of the taper sleeve petal platforms and is arranged along the circumferential direction of the inner circumferential surface of the cylinder body 6. In this embodiment, the number of the claws 11 and the number of the petal tables 5 are four.
Under the action of the return spring force of the compression spring 8, the piston retracts into the hydraulic chamber of the cylinder. Dismantle the taper sleeve at the specialized tool of quick dismantlement taper sleeve on rolling mill roll axle specifically include following step:
step one, adjusting the position of a cylinder body 6 to ensure that a claw 11 at the opening end of the cylinder body and a petal table 5 of a taper sleeve to be disassembled are staggered in the circumferential direction, namely the claw 11 of the cylinder body can penetrate through a gap 23 (shown in figure 2) between adjacent petal tables of the taper sleeve along the axial direction of the cylinder body;
step two, the dismounting tool is sleeved on the roller shaft 3 through the matching of the inner hole 14 of the piston 7 and the external thread section 4 (shown in figure 1) of the roller shaft, so that the end surface of the piston 7 is abutted against the shaft shoulder of the external thread section of the roller shaft, and at the moment, the clamping jaw 11 is positioned in front of the taper sleeve petal table 5 in the axial direction of the cylinder body;
rotating the cylinder body 6 to enable the clamping jaws 11 to be opposite to the petal tables 5 in the axial direction of the cylinder body, wherein the petal tables 5 are located in the annular grooves 12 of the cylinder body, and the taper sleeve petal tables 5 form axial limiting on the clamping jaws 11;
and step four, supplying high-pressure hydraulic oil to a cylinder body hydraulic cavity 9, enabling the cylinder body 6 to move backwards in the opposite direction due to the fact that the piston 7 abuts against the shaft shoulder of the roller shaft, enabling the clamping jaws to be matched with the shapes of the taper sleeve petal platforms 5 to drive the taper sleeve 2 to move away from the roller ring 1, further drawing out the taper sleeve 2 from the inner hole of the roller ring, completing disassembly, and taking down a special tool.
In order to further optimize the technical solution, in this embodiment, a further improvement is made on the basis of the above embodiment, in this embodiment, as shown in fig. 3, the taper sleeve holding part 10 further includes a limit pin 13 for prompting that the claw 11 and the taper sleeve petal table 5 are held in place. The limit pin 13 is fixedly inserted on the inner circumferential surface of the annular groove 12 along the radial direction of the cylinder body 6, and the limit pin 13 and one end part of one claw in the circumferential direction are positioned on the same straight line along the axial direction of the cylinder body. Specifically, as shown in fig. 3 and 5, a corresponding limit pin mounting hole 24 is formed in the cylinder body, and the limit pin 13 is fixedly inserted into the inner circumferential surface of the annular groove 12 through the limit pin mounting hole 24.
And the limiting pin 13 is used for prompting that the claw 11 and the taper sleeve petal table 5 are clamped in place in the third step. As can be seen from figures 3 and 6, when the limit pin 13 is rotated to be contacted by the taper sleeve petal table 5, the petal table 5 limits the limit pin 13 circumferentially, and at the moment, the claw 11 at the opening end of the cylinder body is just matched with the taper sleeve petal table 5 in shape, so as to drive the taper sleeve to move backwards.
Referring to fig. 3 and 7, fig. 7 is a schematic structural diagram of a piston according to an embodiment of the present invention. Preferably, the piston 7 comprises a piston column 15 and a piston body 16 which are integrally connected, the piston body 16 is positioned at one end of the piston column 15 close to the bottom of the hydraulic chamber, and the diameter of the piston body 16 is larger than that of the piston column 15. The piston body 16 is in a sealed sliding connection with the hydraulic chamber 9, and its end remote from the bottom of the hydraulic chamber is connected with a compression spring. When the specialized tool cover when establishing on the roller axle, the terminal surface that 16 one end of piston body was kept away from to piston post 15 is inconsistent with roller axle external thread section shaft shoulder.
Preferably, a round nut 17 is also included for locking the compression spring in the hydraulic chamber 9. As shown in fig. 4, the cylinder hydraulic chamber 9 is provided with an internal thread 19 corresponding to the inner peripheral surface, the round nut 17 is provided with an external thread, and the round thread 17 is in threaded connection with the inner peripheral surface of the hydraulic chamber. The compression spring is sleeved in the hydraulic cavity 9, one end of the compression spring is abutted against the round nut 17, and the other end of the compression spring is abutted against the piston body 16.
Referring to fig. 3 and 7, it is preferable that a dust-proof pad 18 is further included. The dustproof pad 18 is arranged between the piston column 16 and the round nut 17 and is used for preventing impurities from entering the cylinder body.
Referring to fig. 3 and 7, preferably, a plastic sleeve 20 for protecting the external thread of the roll shaft is attached to the inner wall of the inner bore of the piston.
Referring to fig. 3, in order to supply high-pressure hydraulic oil into the hydraulic chamber 9, the other end of the cylinder 6 opposite to the open end thereof is provided with an oil inlet hole 21, and the oil inlet hole 21 is communicated with the hydraulic chamber 9.
Referring to fig. 3 and 6, a grip 22 is provided on the outer peripheral surface of the cylinder 6 to facilitate gripping of the cylinder.
Referring to fig. 3, 8 and 9, as shown in fig. 8, the special tool for rapidly detaching 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. 9, hydraulic oil is supplied to the hydraulic cavity, the piston is abutted against the shaft shoulder of the roll shaft, the cylinder body moves backwards opposite to the piston, the jaws of the cylinder body drive the taper sleeve to be drawn out from the inner hole of the roll collar, and the moving direction of the piston is as indicated by an arrow in FIG. 9.
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 (9)
1. A specialized tool for rapidly disassembling taper sleeves on a rolling mill roll shaft is characterized by comprising: the piston is arranged in the cylinder body;
one end of the cylinder body is open, a hydraulic cavity communicated with the cylinder body opening is formed in the center of the cylinder body, the hydraulic cavity extends along the axial direction of the cylinder body, and the diameter of the opening end of the cylinder body is larger than that of the hydraulic cavity;
the open end of cylinder body is provided with taper sleeve card and holds the portion, taper sleeve card is held the portion and is included:
the clamping jaws matched with the shape of the taper sleeve petal table and the annular grooves used for accommodating the taper sleeve petal table are sequentially arranged on the inner circumferential surface of the opening end of the cylinder body along the axial direction of the cylinder body; wherein the content of the first and second substances,
the number of the clamping jaws corresponds to that of the taper sleeve petal tables and is circumferentially arranged along the inner circumferential surface of the cylinder body;
the piston is arranged in the hydraulic cavity in a sealing sliding mode, the piston and the cylinder body can slide in opposite directions along the axial direction of the cylinder body, and an inner hole matched with the outer thread section of the roll shaft is formed in the center of the piston;
the compression elastic piece is arranged in the hydraulic cavity in a precompressed mode, and the compression elastic piece is connected with one end, far away from the bottom of the hydraulic cavity, of the piston to apply reset elastic force inwards along the cylinder body to the piston.
2. The special tool for rapidly disassembling the taper sleeve on the roll shaft of the rolling mill as claimed in claim 1, wherein: the taper sleeve clamping part also comprises a limiting pin for prompting that the clamping jaw and the taper sleeve petal platform are clamped in place;
the limiting pin is fixedly inserted on the inner circumferential surface of the annular groove along the radial direction of the cylinder body; and the limiting pin and one circumferential end part of one of the clamping jaws are positioned on the same straight line along the axial direction of the cylinder body.
3. The special tool for rapidly disassembling 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.
4. The special tool for rapidly disassembling the taper sleeve on the roll shaft of the rolling mill as claimed in claim 3, 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.
5. The special tool for rapidly disassembling the taper sleeve on the roll shaft of the rolling mill as claimed in claim 4, wherein: the special tool also comprises a round nut used for locking the compression spring in the hydraulic cavity, and the round nut is in threaded connection with the inner peripheral surface of the hydraulic cavity;
one end of the compression spring is abutted against the round nut, and the other end of the compression spring is abutted against the piston body.
6. The special tool for rapidly disassembling the taper sleeve on the roll shaft of the rolling mill as claimed in claim 5, wherein: still include dustproof pad, dustproof pad is located the piston with between the round nut.
7. The special tool for rapidly disassembling the taper sleeve on the roll shaft of the rolling mill as claimed in claim 1, wherein: and a plastic sleeve for protecting the external thread of the roll shaft is attached to the inner wall of the inner hole of the piston.
8. The special tool for rapidly disassembling 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 opening end of the cylinder body, is provided with an oil inlet hole, and the oil inlet hole is communicated with the hydraulic cavity.
9. The special tool for rapidly disassembling the taper sleeve on the roll shaft of the rolling mill as claimed in claim 1, wherein: the outer peripheral surface of the cylinder body is provided with a handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022530779.1U CN213671129U (en) | 2020-11-05 | 2020-11-05 | Special tool for rapidly disassembling taper sleeve on rolling mill roll shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022530779.1U CN213671129U (en) | 2020-11-05 | 2020-11-05 | Special tool for rapidly disassembling taper sleeve on rolling mill roll shaft |
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| Publication Number | Publication Date |
|---|---|
| CN213671129U true CN213671129U (en) | 2021-07-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022530779.1U Active CN213671129U (en) | 2020-11-05 | 2020-11-05 | Special tool for rapidly disassembling taper sleeve on rolling mill roll shaft |
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| CN (1) | CN213671129U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894162A (en) * | 2021-11-08 | 2022-01-07 | 哈工大机器人智能制造有限公司 | Automatic roller ring dismounting tool and method for rolling mill roller ring |
| 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 CN202022530779.1U patent/CN213671129U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113894162A (en) * | 2021-11-08 | 2022-01-07 | 哈工大机器人智能制造有限公司 | Automatic roller ring dismounting tool and method for rolling mill roller ring |
| 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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