CN211761238U - Extracting tool of copper sheathing in main drive work roll connecting rod - Google Patents
Extracting tool of copper sheathing in main drive work roll connecting rod Download PDFInfo
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- CN211761238U CN211761238U CN201922321488.9U CN201922321488U CN211761238U CN 211761238 U CN211761238 U CN 211761238U CN 201922321488 U CN201922321488 U CN 201922321488U CN 211761238 U CN211761238 U CN 211761238U
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- screw rod
- pull disc
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Abstract
The utility model relates to a disassembling tool for a copper bush in a connecting rod of a main transmission working roller, which comprises a screw rod, an inner pull disc, a positioning nut, an outer stay bar and a stiffening nut; the inner pull disc and the outer support rod are respectively sleeved at two ends of the screw rod; a plurality of pulling claws are arranged on the outer side of the inner pulling disc along the circumferential direction, and a positioning nut is fixedly arranged on the outer side of the inner pulling disc and matched with the screw rod; the length of outer vaulting pole is greater than the hole diameter of connecting rod, and stiffening nut locates on the screw rod in the outer vaulting pole outside. The utility model discloses simple structure is small and exquisite, is fit for the operation in constrictive space, adopts screw drive application of force and copper sheathing terminal surface atress even, can improve the operating efficiency, reduces intensity of labour, personal harm and safety risk.
Description
Technical Field
The utility model relates to an overhaul of the equipments technical field especially relates to a extracting tool of copper sheathing in main drive work roll connecting rod.
Background
The connecting rod of the main transmission working roll of the rolling mill is worn in the roll changing and production processes by the copper sleeve used for positioning inside, and the copper sleeve is worn to a certain degree or needs to be replaced after being used for a certain period. In the process of replacing the copper bush, how to take out the old copper bush is always a difficult problem. In the past, when the copper bush is too tight, the copper bush is usually cut by adopting electric arc welding, the working environment is narrow, smoke and dust greatly damage the human health, fire hazard exists between frames, electric arc during cutting easily damages the inner wall of the connecting rod, polishing and repairing treatment are needed, the whole working period is long, and the overhauling progress is influenced.
The positioning copper sleeve is difficult to take out due to the following reasons: 1. the matching size during original installation can not meet the drawing requirements, the positions with scratch are not processed in place, and high points exist, so that the assembly is over-tight. 2. The operation space is narrow, does not have suitable instrument, causes the operation degree of difficulty to increase. 3) The end face of the copper sleeve is stressed unevenly, and an oblique force exists, so that the copper sleeve cannot be taken out smoothly.
Disclosure of Invention
The utility model provides a copper sheathing's extracting tool in main drive working roll connecting rod, simple structure is small and exquisite, is fit for the operation in constrictive space, adopts screw drive application of force and copper sheathing terminal surface atress even, can improve the operating efficiency, reduces intensity of labour, personal harm and safety risk.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a tool for disassembling a copper sleeve in a connecting rod of a main transmission working roller comprises a screw rod, an inner pull disc, a positioning nut, an outer support rod and a stiffening nut; the inner pull disc and the outer support rod are respectively sleeved at two ends of the screw rod; the inner pull disc is disc-shaped, a plurality of pull claws are arranged on the outer side of the inner pull disc along the circumferential direction, and the vertical distance from the connecting line of the outer end points of the adjacent 2 pull claws to the axis of the inner pull disc is less than the radius of the inner pull disc; the outer diameter of the inner pull disc is smaller than the inner diameter of the copper sleeve, the outer side edge of the pull claw extends to the outer side of the edge of the inner pull disc, and the circumferential diameter of the outer edge of the pull claw is larger than the inner diameter of the copper sleeve and smaller than the inner hole diameter of the connecting rod; a positioning nut is fixedly arranged on the outer side of the inner pull disc and matched with the screw rod; the length of outer vaulting pole is greater than the hole diameter of connecting rod, and stiffening nut locates on the screw rod in the outer vaulting pole outside.
The pull claws are 4 and are uniformly arranged along the circumferential direction of the inner pull disc, and the pull claws and the inner pull disc are welded and fixed.
The outer stay bar is made of channel steel, the opening of the channel steel faces outwards, a cushion block is arranged between the channel steel and the stiffening nut, the cushion block is square, and the side length of the cushion block is larger than the opening width of the channel steel.
At least one handle is arranged on the inner side of the inner pull disc.
Compared with the prior art, the beneficial effects of the utility model are that:
1) the copper bush dismounting tool is simple and small in structure and suitable for operation in a narrow space;
2) the copper sleeve is stressed uniformly in the dismounting process, the dismounting is convenient and easy, and the operation efficiency can be improved;
2) and the thread transmission is adopted for force application, so that electric arc cutting is not needed, the operation intensity of workers is reduced, and personal harm and safety risk are avoided.
Drawings
FIG. 1 is a front view of the utility model of a tool for detaching a copper bush in a connecting rod of a main transmission working roll.
Fig. 2 is a left side view of fig. 1 (after 90 degree rotation).
Fig. 3 is a right side view of fig. 1 (after 90 degree rotation).
Fig. 4 is a schematic structural view of the inner pull plate of the present invention.
Fig. 5 is a schematic view of the inner tray of the present invention passing through the copper sheath.
Fig. 6 is a schematic view of the use state of the tool for detaching the copper bush in the connecting rod of the main transmission working roll of the present invention.
In the figure: 1. positioning nut 2, pulling claw 3, inner pulling disc 4, screw 5, outer stay bar 6, cushion block 7, stiffening nut 8, copper bush 9, connecting rod 10 and handle
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
as shown in fig. 1-3, the tool for detaching the copper bush in the connecting rod of the main transmission working roll of the present invention comprises a screw rod 4, an inner pull disc 3, a positioning nut 1, an outer stay bar 5 and a stiffening nut 7; the inner pull disc 3 and the outer support rod 5 are respectively sleeved at two ends of the screw rod 4; the inner pull disc 3 is disc-shaped, a plurality of pull claws 2 are arranged on the outer side of the inner pull disc along the circumferential direction, and the vertical distance from the connecting line of the outer end points of the adjacent 2 pull claws 2 to the axis of the inner pull disc 3 is less than the radius of the inner pull disc 3; the outer diameter of the inner pull disc 3 is smaller than the inner diameter of the copper sleeve 8, the outer side edge of the pull claw 2 extends to the outer side of the edge of the inner pull disc 3, and the circumferential diameter of the outer edge of the pull claw 2 is larger than the inner diameter of the copper sleeve 8 and smaller than the inner hole diameter of the connecting rod 9; the outer side of the inner pull disc 3 is fixedly provided with a positioning nut 1, and the positioning nut 1 is matched with the screw rod 4; the length of the outer stay bar 5 is larger than the diameter of an inner hole of the connecting rod 9, and the stiffening nut 7 is arranged on the screw rod 4 outside the outer stay bar 5.
The number of the pull claws 2 is 4, the pull claws are uniformly arranged along the circumferential direction of the inner pull disc 3, and the pull claws 2 and the inner pull disc 3 are fixedly welded.
The outer stay bar 5 is made of channel steel, the opening of the channel steel faces outwards, a cushion block 6 is arranged between the channel steel and the stiffening nut 7, the cushion block 6 is square, and the side length of the cushion block 6 is larger than the opening width of the channel steel.
The inner side of the inner pull tray 3 is provided with at least one handle 10 (shown in fig. 4).
When the tool for disassembling the copper bush in the connecting rod of the main transmission working roller is used, the inner pull disc 3 is firstly rotated to a proper angle to enable the inner pull disc to smoothly pass through the copper bush (as shown in figure 5), the inner pull disc 3 is conveyed into an inner hole of a connecting rod 9 at the inner side of the copper bush, then the inner pull disc 3 is righted by the hand handle 10, the side surface of each pull claw 2 on the inner pull disc 3 is clung to the end surface of the copper bush 8 to realize positioning, one end of the screw rod 4 passes through a through hole at the center of the inner pull disc 3 and is fixedly connected with the positioning nut 1 at the outer side of the inner pull disc 3; then, the outer support rod 5 penetrates through the screw rod 4, so that two ends of the outer support rod 5 are supported outside the end surface of the connecting rod 9, and the stiffening nut 7 is installed on the screw rod 4 outside the outer support rod 5; the stiffening nut 7 is rotated by a tool such as a spanner, the distance between the inner pull disc 3 and the outer support rod 5 is reduced through thread transmission, and the copper bush 8 is taken out from the inner hole of the connecting rod 9 under the driving of the pull claw 2.
The above description is only the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can substitute or change the technical solution and the concept of the present invention within the technical scope disclosed in the present invention.
Claims (4)
1. A tool for disassembling a copper sleeve in a connecting rod of a main transmission working roller is characterized by comprising a screw rod, an inner pull disc, a positioning nut, an outer support rod and a stiffening nut; the inner pull disc and the outer support rod are respectively sleeved at two ends of the screw rod; the inner pull disc is disc-shaped, a plurality of pull claws are arranged on the outer side of the inner pull disc along the circumferential direction, and the vertical distance from the connecting line of the outer end points of the adjacent 2 pull claws to the axis of the inner pull disc is less than the radius of the inner pull disc; the outer diameter of the inner pull disc is smaller than the inner diameter of the copper sleeve, the outer side edge of the pull claw extends to the outer side of the edge of the inner pull disc, and the circumferential diameter of the outer edge of the pull claw is larger than the inner diameter of the copper sleeve and smaller than the inner hole diameter of the connecting rod; a positioning nut is fixedly arranged on the outer side of the inner pull disc and matched with the screw rod; the length of outer vaulting pole is greater than the hole diameter of connecting rod, and stiffening nut locates on the screw rod in the outer vaulting pole outside.
2. The tool for disassembling the copper bush in the main transmission working roll connecting rod is characterized in that the number of the pulling claws is 4, the pulling claws are uniformly arranged along the circumferential direction of the inner pulling disk, and the pulling claws and the inner pulling disk are welded and fixed.
3. The tool of claim 1, wherein the outer brace is made of a channel steel, an opening of the channel steel faces outward, a spacer block is arranged between the channel steel and the stiffening nut, the spacer block is square, and the side length of the spacer block is larger than the opening width of the channel steel.
4. The tool for removing the copper sheathing in the main drive work roll linkage of claim 1, wherein the inner pull cup is provided with at least one handle on the inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922321488.9U CN211761238U (en) | 2019-12-20 | 2019-12-20 | Extracting tool of copper sheathing in main drive work roll connecting rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922321488.9U CN211761238U (en) | 2019-12-20 | 2019-12-20 | Extracting tool of copper sheathing in main drive work roll connecting rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211761238U true CN211761238U (en) | 2020-10-27 |
Family
ID=72975536
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922321488.9U Active CN211761238U (en) | 2019-12-20 | 2019-12-20 | Extracting tool of copper sheathing in main drive work roll connecting rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211761238U (en) |
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2019
- 2019-12-20 CN CN201922321488.9U patent/CN211761238U/en active Active
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