Quick dismounting device for labyrinth ring of roller shaft
Through the design of the roller shaft maze rings quickly disassembled the device, the method of promoting the piston and claw card into the card slot was used to solve the problem of time and effort to seal the maze of the maze of the roller. , Improve the production efficiency of steel rolling.
Patent Information
- Application Number
- CN202420510555.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-16
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-03-16
AI Technical Summary
In the finishing machine for wire or bar steel rolling, the disassembly and assembly and maintenance of the rolling shaft head sealing maze ring lacks special disassembly and assembly tooling, which leads to time-consuming and laborious seal replacement and maintenance, resulting in low steel rolling production efficiency.
The rapid disassembly device of the maze of the roll shaft is designed, including the shell, the piston, the claw positioning set, the fast connector and the claw claws, and promote the piston through the hydraulic pressure, so that the claw card card can be entered into the maze rings and achieved the maze ring. Fast and efficient disassembly.
This device realizes the rapid and efficient disassembly and replacement of the maze ring, improves the overall efficiency of the rolling machine operation, solves the problem of time and effort of seal replacement, and improves the production efficiency of steel rolling.
Smart Images
Figure CN222405475U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel rolling production, in particular to a device for quickly disassembling a labyrinth ring of a rolling roller shaft. Background Art
[0002] The roller shaft seal of the finishing mill for wire or bar rolling is in contact with the inner and outer labyrinth rings with paired seals, so as to separate the lubricating oil inside the mill from the cooling water with a large amount of iron oxide powder outside, to ensure that the lubricating oil is not contaminated, so as to keep the oil composition and properties stable. The quality of the seal is directly related to the smooth and reliable operation of the rolling mill. In practice, since the rolling mill is a high-speed rotating equipment, the shaft seal has a short life under the high-speed rotating contact friction, especially the external seal. The continuous production of metallurgical plants and mines has a limited downtime of about one hour per day for maintenance. It is very difficult for the operators to complete the disassembly and maintenance tasks of multiple labyrinth rings within a limited time. The seal replacement and maintenance tasks cannot be fulfilled in time, and the equipment is out of repair, resulting in external cooling water entering the grease lubrication system from the weak parts of the seal failure, affecting the stable and smooth operation of the entire production line equipment. Utility Model Content
[0003] The utility model provides a roller shaft labyrinth ring quick disassembly device to solve the problems existing in the above background.
[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0005] A labyrinth ring quick disassembly device for a rolling mill shaft comprises a shell, one side of which is inclinedly provided with a plurality of quick connectors, a piston is movably provided inside the shell, the piston is detachably connected with a claw positioning sleeve, and the circumferential side of the claw positioning sleeve is evenly and detachably connected with a plurality of claws.
[0006] Furthermore, a plurality of mounting holes are obliquely opened on one side of the shell, and the quick connectors are all detachably arranged inside the mounting holes.
[0007] Furthermore, a mounting groove is provided on the inner side of the circumference of the pull claw positioning sleeve close to the shell, and the shell and the pull claw positioning sleeve are detachably connected through the mounting groove.
[0008] Furthermore, the pulling claws are each provided with a pin shaft, and the pulling claws are detachably connected to the pulling claw positioning sleeves via the pin shaft.
[0009] Furthermore, a plurality of limit platforms are evenly and correspondingly fixedly provided on the circumferential side of the pulling claw positioning sleeve close to the pulling claw.
[0010] The utility model has the following beneficial effects:
[0011] The utility model provides a device for quickly disassembling a labyrinth ring of a rolling mill shaft, which is mainly composed of a shell, a piston, a claw positioning sleeve, a quick connector and claws. By inserting the device as a whole into the rolling mill shaft, the evenly distributed claws are clamped in the clamping grooves of the labyrinth ring, and then the piston is pushed hydraulically, the labyrinth ring is quickly and efficiently disassembled from the rolling mill shaft. The whole disassembly process is efficient and convenient, which effectively promotes the disassembly and replacement rate of the rolling mill shaft sealing labyrinth ring, thereby improving the overall efficiency of the rolling mill operation, and solves the problem that when disassembling, assembling and repairing the labyrinth ring of the rolling mill shaft head of the finishing machine for wire or bar rolling, the seal replacement and maintenance work is usually time-consuming and laborious due to the lack of special disassembly and assembly tooling, thereby resulting in low overall production efficiency of steel rolling. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.
[0013] The meanings of the reference numerals are as follows:
[0014] 1. Quick connector; 2. Housing; 3. Piston; 4. Pull claw positioning sleeve; 5. Pin shaft; 6. Pull claw; 7. Mounting hole; 8. Mounting groove; 9. Limiting platform; 10. Roller shaft; 11. Labyrinth ring. DETAILED DESCRIPTION
[0015] The utility model is further described below in conjunction with the accompanying drawings and specific embodiments.
[0016] like Figure 1 As shown, a labyrinth ring quick disassembly device for a rolling mill shaft includes a shell 2, a plurality of quick connectors 1 are obliquely provided on one side of the shell 2, a piston 3 is movably provided on the inner side of the shell 2, a claw positioning sleeve 4 is detachably connected to the piston 3, and a plurality of claws 6 are evenly distributed and detachably connected to the circumferential side of the claw positioning sleeve 4. A plurality of mounting holes 7 are obliquely provided on one side of the shell 2, and the quick connectors 1 are all detachably provided on the inner side of the mounting holes 7. A mounting groove 8 is provided on the inner side of the circumference of the claw positioning sleeve 4 close to the shell 2, and the shell 2 and the claw positioning sleeve 4 are detachably connected via the mounting groove 8. A pin shaft 5 is provided on the claw 6, and the claw 6 is detachably connected to the claw positioning sleeve 4 via the pin shaft 5. A plurality of limit platforms 9 are also evenly distributed and fixedly provided on the circumferential side of the claw positioning sleeve 4 close to the claw 6.
[0017] When the utility model is used in a specific application, the labyrinth ring disassembly device is inserted into the roll shaft 10, and the claw positioning sleeve 4 is used to adjust and position the cross section of the labyrinth ring 11, and then the three claws 6 evenly distributed at 120° are opened to an open state, and then the claw positioning sleeve 4 is spirally adjusted. Under the push of the claw positioning sleeve 4, the three claws 6 are evenly clamped into the concave annular groove of the labyrinth ring 11. After clamping, the hydraulic cylinder is connected to the hydraulic cylinder through the quick connector 1 through the oil pipe of the roll changing trolley to inject hydraulic oil, so that the piston 3 pushes the roll shaft 10, thereby completing the removal of the labyrinth ring 11. The whole operation process is fast and efficient, and effectively solves the problem that when disassembling and assembling the labyrinth ring 11 sealed by the finishing machine roll shaft head for wire or bar rolling, the seal replacement and maintenance work is usually time-consuming and laborious due to the lack of special disassembly and assembly tooling, thereby causing the overall production efficiency of steel rolling to be low. Therefore, the device has good practicality.
Claims
1. A roller shaft labyrinth ring quick disassembly device, characterized by: The invention comprises a shell (2), a plurality of quick connectors (1) are obliquely provided on one side of the shell (2), a piston (3) is movably provided on the inner side of the shell (2), the piston (3) is detachably connected to a claw positioning sleeve (4), and a plurality of claws (6) are evenly distributed and detachably connected to the circumferential side of the claw positioning sleeve (4).
2. The roller shaft labyrinth ring quick disassembly device according to claim 1, characterized in that: A plurality of mounting holes (7) are obliquely provided on one side of the housing (2), and the quick connectors (1) are all detachably mounted inside the mounting holes (7).
3. The roller shaft labyrinth ring quick disassembly device according to claim 1, characterized in that: The claw positioning sleeve (4) is provided with a mounting groove (8) on the inner side of the circumference close to the shell (2), and the shell (2) and the claw positioning sleeve (4) are detachably connected via the mounting groove (8).
4. The roller shaft labyrinth ring quick disassembly device according to claim 1, characterized in that: The pulling claws (6) are each provided with a pin shaft (5), and the pulling claws (6) are detachably connected to the pulling claw positioning sleeve (4) via the pin shaft (5).
5. The roller shaft labyrinth ring quick disassembly device according to claim 4, characterized in that: A plurality of limit platforms (9) are evenly and fixedly provided on the circumferential side of the pull claw positioning sleeve (4) close to the pull claw (6).