A rolling mill unit

By designing support rollers, blocks, oil guide grooves and oil nozzles in the rolling mill unit, continuous oil supply and lubrication of lining plates during the rolling mill work is achieved, and the problems of poor lubrication and serious wear of lining plates in the existing rolling mill unit are solved, extending the service life of lining plates and reducing maintenance costs.

CN222739938UActive Publication Date: 2025-04-11QINGDAO RUILUSHENG EQUIP UPGRADE MFG CO LTD
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Patent Information

Application Number
CN202420957625.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-07
Publication Date
2025-04-11
Estimated Expiration
2034-05-07

AI Technical Summary

Technical Problem

During the production process, the existing rolling mills have poor lubrication and severe wear due to the inflow of water and oxidized slags, which in turn affects the normal operation of the rack and rolls, causing early corrosion of the rolling mills and damage to the threaded holes.

Method used

A rolling mill unit is designed, including a arch, an upper support roller, a lower support roller, a work roller, a lining plate, a grease nozzle, a wedge, a press block, a limit block and a telescopic spring. The pressing block is pressed inward by rotating the upper support roller, the pressing block is displaced backward into the oil guide groove, the limiting block is displaced backward along the chuck, and the squeeze oil nozzle is sprayed out lubricating oil, and the lining plate is continuously lubricated.

Benefits of technology

It realizes continuous oil supply and continuous lubrication of the lining plate during the rolling mill, avoiding the problem of reduced lubricating oil and increased wear of the lining plate, extending the service life of the lining plate, and reducing maintenance costs.

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Abstract

The utility model provides a rolling mill unit, belonging to the technical field of mechanical equipment, comprising: an arch, an upper support roller, a lower support roller, an upper working roller, a lower working roller, a fixed seat, a liner, an oil nozzle, a wedge block, a pressure block, a limit block and a telescopic spring. When the rolling mill bites into steel, the upper support roller rotates to press the pressure block protruding from the front side of the liner inward, and the pressure block retreats and moves into the oil guide groove to be flush with the liner. After being squeezed, the limit block at the other end of the pressure block moves horizontally backward along the slot. After the limit block moves horizontally backward along the slot, the limit block moves toward the oil nozzle, squeezing the pressing block at the front end of the oil nozzle, so that the oil nozzle sprays lubricating oil outward, thereby continuously supplying oil when the rolling mill is working, and continuously flowing out to lubricate the arch liner of the rolling mill, thereby ensuring the amount of lubricating oil of the liner during the working process, avoiding lubrication during the working process, reducing the degree of oxidation and wear of the arch liner of the plate and strip rolling mill, extending the service life of the liner, and ensuring the shape of the rolled plate.
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Description

Technical Field

[0001] The utility model relates to the technical field of mechanical equipment, in particular to a rolling mill unit. Background Art

[0002] A rolling mill is a mechanical device used for metal material processing. Its working principle is to plastically deform and adjust the size of metal materials through rolling. Rolling mills are widely used in metal material processing and can produce metal products of various shapes and sizes.

[0003] The mill frame is composed of an "arch" to install the roll bearing seat and the roll adjustment device, and the mill arch lining is installed on the mill arch. In order to ensure product quality and avoid premature damage to the frame arch and the bearing seat, the mill arches of hot rolling, cold rolling, primary rolling and thick plate rolling mills in various steel mills are usually equipped with wear-resistant linings to protect the mill arches.

[0004] It is found in actual use that the existing rolling mill has the following deficiencies:

[0005] During the production process, water and oxidized slag will flow into the space between the arch and the roller lining. The lining will have problems such as poor lubrication and severe wear during normal operation, which will cause the gap between the frame arch and the roller to become larger, causing the roller to shake in the arch and hit the lining, which will further aggravate the wear of the lining, forming a vicious cycle and affecting the plate shape of the rolling mill;

[0006] In addition, there is a large amount of cooling water and high-pressure descaling water at the bottom of the rolling mill, which will wash the lining, so that the little lubricating grease on the lining is also washed away by the water, and the lubrication effect is not achieved, thus causing the lining to crack. In severe cases, it will cause arch corrosion and threaded hole damage, seriously threatening the life of the mill arch.

[0007] Therefore, the present application provides a rolling mill train to meet the needs. Utility Model Content

[0008] The utility model aims to solve the problems existing in the above-mentioned background technology and proposes a rolling mill unit.

[0009] The technical problem to be solved by the utility model is to provide a rolling mill unit to solve the problems of the existing rolling mill unit.

[0010] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0011] A rolling mill unit, comprising: an archway, an upper support roller, a lower support roller, an upper working roller, a lower working roller, a fixed seat, a liner, an oil nozzle, a wedge block, a pressure block, a limit block and a telescopic spring, wherein the upper support roller is installed at the upper end of the archway, the lower support roller is installed at the lower end of the archway, the upper working roller and the lower working roller are installed between the upper support roller and the lower support roller inside the archway, and the archway is provided with liner plates on the left and right sides of the upper support roller and the lower support roller through the fixed seat;

[0012] An oil guide groove is arranged at the upper end of the front side of the lining plate, an oil outlet hole is arranged on the inner side of the oil guide groove of the lining plate, a main lubricating oil channel is vertically arranged on the front side of the lining plate, a branch lubricating oil channel is arranged on the side of the main lubricating oil channel of the lining plate, an oil nozzle is installed inside the oil outlet hole, a wedge block is installed at the lower end of the oil outlet hole located at the oil nozzle, a pressure block is installed on the front side of the oil outlet hole, a limiting block is installed on the other end of the pressure block, and a telescopic spring is installed at the lower end of the side of the limiting block.

[0013] Preferably, two groups of oil guide grooves are provided, and the two groups of oil guide grooves are respectively located on the left and right sides of the front side of the lining plate, and the oil guide grooves are connected to the main lubricating oil channel.

[0014] Preferably, the oil outlet hole passes through both ends of the lining plate, and the oil nozzle extends transversely from the back side of the lining plate to the inside of the oil outlet hole.

[0015] Preferably, the pressing block passes through the oil outlet hole and the oil guide groove and extends to the front outer end of the liner, and the thickness of the pressing block is smaller than the depth of the oil guide groove.

[0016] Preferably, the pressing block is rectangular in shape, placed vertically, and parallel to the lining plate.

[0017] Preferably, a slot is provided inside the oil outlet hole, and the upper and lower ends of the limit block at the other end of the pressing block are clamped in the slot.

[0018] Preferably, the telescopic spring is arranged transversely, and the other end of the telescopic spring is connected to the wedge block.

[0019] Preferably, the oil nozzle is a press-type oil nozzle, the pressing block of the oil nozzle extends outward to the front end of the oil nozzle, and the oil nozzle and the limit block are arranged opposite to each other.

[0020] Compared with the prior art, the utility model has at least the following beneficial effects:

[0021] 1. When the rolling mill bites into the steel, the upper support roller rotates to press the pressure block on the front of the protruding liner inward, and the pressure block moves backward into the oil guide groove to be flush with the liner. After being squeezed, the limit block at the other end of the pressure block moves horizontally backward along the slot. When the limit block at the other end of the squeezed pressure block moves horizontally backward along the slot, the limit block moves toward the oil nozzle, squeezing the pressing block at the front end of the oil nozzle, so that the oil nozzle sprays lubricating oil outward, thereby continuously supplying oil when the rolling mill is working, continuously lubricating the mill arch liner, ensuring the amount of lubricating oil on the liner during work, avoiding lubrication during work, reducing the degree of oxidation and wear of the strip mill arch liner, extending the service life of the liner, and ensuring the shape of the rolled plate;

[0022] 2. By starting and stopping the upper support roller to control whether the oil nozzle is discharging oil, it can continuously supply oil when the rolling mill is working, and automatically cut off the oil when the rolling mill stops. It can reduce the friction loss of the lining plate while effectively saving the amount of lubricating oil and reducing the maintenance cost of the lining plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated herein and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, further serve to explain the principles of the present disclosure and to enable those skilled in the relevant art to make and use the present disclosure.

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0025] Figure 2 This is a schematic diagram of the specific connection structure of the lining plate of the utility model;

[0026] Figure 3 This is a schematic diagram of the cross-sectional structure of the oil outlet hole of the liner of the utility model;

[0027] Figure 4 For the utility model Figure 2 A is an enlarged schematic diagram of the structure.

[0028] [reference numerals]

[0029] 1-archway; 2-upper support roller; 3-lower support roller; 4-upper working roller; 5-lower working roller; 6-fixed seat; 7-lining plate; 8-oil nozzle; 9-wedge block; 10-pressure block; 11-limiting block; 12-telescopic spring; 701-oil guide groove; 702-oil outlet hole; 703-main lubricating oil channel; 704-branch lubricating oil channel.

[0030] As shown in the figure, in order to clearly implement the structure of the embodiment of the utility model, specific structures and devices are marked in the figure, but this is only for illustrative purposes and is not intended to limit the utility model to the specific structure, device and environment. According to specific needs, ordinary technicians in this field can adjust or modify these devices and environments, and the adjustments or modifications made are still included in the scope of the attached claims. DETAILED DESCRIPTION

[0031] like Figure 1 , Figure 2 , Figure 3 and Figure 4 A rolling mill unit shown in the figure, provided in an embodiment of the utility model, comprises: an arch 1, an upper support roller 2, a lower support roller 3, an upper working roller 4, a lower working roller 5, a fixed seat 6, a liner 7, an oil nozzle 8, a wedge block 9, a pressure block 10, a limit block 11 and a telescopic spring 12, an upper support roller 2 is installed at the upper end of the arch 1, a lower support roller 3 is installed at the lower end of the arch 1, an upper working roller 4 and a lower working roller 5 are installed between the upper support roller 2 and the lower support roller 3 inside the arch 1, and a liner 7 is installed on the left and right sides of the upper support roller 2 and the lower support roller 3 of the arch 1 through a fixed seat 6;

[0032] An oil guide groove 701 is provided at the upper end of the front side of the lining plate 7, an oil outlet hole 702 is provided on the inner side of the oil guide groove 701 of the lining plate 7, a main lubricating oil channel 703 is vertically provided on the front side of the lining plate 7, a branch lubricating oil channel 704 is provided on the side of the main lubricating oil channel 703 of the lining plate 7, an oil nozzle 8 is installed inside the oil outlet hole 702, a wedge block 9 is installed at the lower end of the oil outlet hole 702 located at the oil nozzle 8, a pressure block 10 is installed on the front side of the oil outlet hole 702, a limit block 11 is installed on the other end of the pressure block 10, and a telescopic spring 12 is installed at the lower end of the side of the limit block 11.

[0033] In the present embodiment, two groups of oil guide grooves 701 are provided, and the two groups of oil guide grooves 701 are respectively located on the left and right sides of the front side of the lining plate 7, and the oil guide grooves 701 are connected with the main lubricating oil channel 703. The lubricating oil flowing out of the oil guide grooves 701 can flow downward into the main lubricating oil channel 703, and then flow into the branch lubricating oil channel 704, thereby spreading over the entire surface of the lining plate 7, and then diffused to the working surface, thereby ensuring the lubrication performance of the working surface, thereby reducing the friction and wear of the working surface, and avoiding the unevenness of the working surface caused by uneven wear of the working surface, thereby extending the service life of the lining plate 7.

[0034] In this embodiment, the oil outlet hole 702 passes through the front and back ends of the lining plate 7, and the oil nozzle 8 extends horizontally from the back side of the lining plate 7 to the inside of the oil outlet hole 702. The oil nozzle 8 is installed into the oil outlet hole 702 from the back side of the lining plate 7 to supply oil and spray the lubricating oil from the front side of the oil outlet hole 702.

[0035] In this embodiment, the pressure block 10 passes through the oil outlet hole 702 and the oil guide groove 701 and extends to the outer end of the front side of the liner 7, and the thickness of the pressure block 10 is less than the depth of the oil guide groove 701. When the rolling mill bites into the steel, the upper support roller 2 rotates to press the pressure block 10 protruding from the front side of the liner 7 inward, and the pressure block 10 retreats and moves into the oil guide groove 701 to be flush with the liner 7.

[0036] In this embodiment, the pressing block 10 is rectangular in shape, placed vertically, and parallel to the liner 7, so that the pressing block 10 can move backward into the oil guide groove 701 and be flush with the liner 7 when pressed inward.

[0037] In this embodiment, a slot is provided inside the oil outlet 702, and the upper and lower ends of the limit block 11 at the other end of the pressing block 10 are stuck in the slot, and the limit block 11 at the other end of the pressed block 10 is squeezed and moves horizontally backward along the slot.

[0038] In this embodiment, the telescopic spring 12 is arranged horizontally, and the other end of the telescopic spring 12 is connected to the wedge block 9. The telescopic spring 12 can provide support for the limit block 11 and the pressure block 10, which can not only buffer the force but also enable the limit block 11 and the pressure block 10 to be reset.

[0039] In the present embodiment, the oil nozzle 8 is a press-type oil nozzle 8, the pressing block of the oil nozzle 8 extends outward to the front end of the oil nozzle 8, and the oil nozzle 8 and the limit block 11 are arranged opposite to each other. When the limit block 11 at the other end of the squeezed pressing block 10 is horizontally displaced backward along the card slot, the pressing block 10 is displaced toward the oil nozzle 8, squeezing the pressing block at the front end of the oil nozzle 8, so that the oil nozzle 8 sprays lubricating oil outward, which can effectively save the amount of lubricating oil while reducing the friction loss of the lining plate 7.

Claims

1. A rolling mill unit, characterized in that: include: An archway (1), an upper support roller (2), a lower support roller (3), an upper working roller (4), a lower working roller (5), a fixed seat (6), a liner (7), an oil nozzle (8), a wedge block (9), a pressure block (10), a limit block (11) and a telescopic spring (12); the upper support roller (2) is installed at the upper end of the archway (1), the lower support roller (3) is installed at the lower end of the archway (1), the upper working roller (4) and the lower working roller (5) are installed between the upper support roller (2) and the lower support roller (3) inside the archway (1), and the liner (7) is installed on the left and right sides of the upper support roller (2) and the lower support roller (3) of the archway (1) through the fixed seat (6); An oil guide groove (701) is provided at the upper end of the front face of the lining plate (7), an oil outlet hole (702) is provided on the inner side of the oil guide groove (701) of the lining plate (7), a main lubricating oil passage (703) is vertically provided on the front face of the lining plate (7), a branch lubricating oil passage (704) is provided on the side of the main lubricating oil passage (703) of the lining plate (7), an oil nozzle (8) is installed inside the oil outlet hole (702), a wedge block (9) is installed at the lower end of the oil nozzle (8) of the oil outlet hole (702), a pressure block (10) is installed on the front face of the oil outlet hole (702), a limit block (11) is installed on the other end of the pressure block (10), and a telescopic spring (12) is installed at the lower end of the side face of the limit block (11).

2. The rolling mill unit according to claim 1, characterized in that: The oil guide grooves (701) are provided in two groups, and the two groups of oil guide grooves (701) are respectively located on the left and right sides of the front surface of the lining plate (7), and the oil guide grooves (701) are connected to the main lubricating oil channel (703).

3. The rolling mill unit according to claim 1, characterized in that: The oil outlet hole (702) passes through the front and back ends of the lining plate (7), and the oil nozzle (8) extends transversely from the back side of the lining plate (7) to the inside of the oil outlet hole (702).

4. The rolling mill unit according to claim 1, characterized in that: The pressing block (10) penetrates the oil outlet hole (702) and the oil guide groove (701) and extends to the front outer end of the lining plate (7), and the thickness of the pressing block (10) is smaller than the depth of the oil guide groove (701).

5. The rolling mill unit according to claim 1, characterized in that: The pressing block (10) is rectangular in shape, placed vertically, and parallel to the lining plate (7).

6. The rolling mill unit according to claim 1, characterized in that: A slot is provided inside the oil outlet hole (702), and the upper and lower ends of the limit block (11) at the other end of the pressing block (10) are clamped in the slot.

7. The rolling mill unit according to claim 1, characterized in that: The telescopic spring (12) is arranged in a transverse direction, and the other end of the telescopic spring (12) is connected to the wedge block (9).

8. The rolling mill unit according to claim 1, characterized in that: The oil nozzle (8) is a press-type oil nozzle (8), the press block of the oil nozzle (8) extends outward to the front end of the oil nozzle (8), and the oil nozzle (8) and the limit block (11) are arranged opposite to each other.