Adjustable roll neck tug support device and using method

Abstract

The invention discloses an adjustable roller neck tug support device and a using method, and belongs to the technical field of roller laser cladding, the adjustable roller neck tug support device comprises a buffer tug assembly which is in contact with a roller diameter and is provided with two tugs, the two tugs in the buffer tug assembly are symmetrically arranged, and the surface of each tug is coated with a sheath layer; the bottom of the buffering tug assembly is connected with a horizontal adjusting unit, and the horizontal adjusting unit can adjust the center distance between two tugs of the buffering tug assembly. The bottom of the horizontal adjusting unit is connected with an axial adjusting unit through a vertical adjusting unit, the vertical adjusting unit can adjust the height of the buffering tug assembly, and meanwhile the axial adjusting unit can adjust the axial position of the buffering tug assembly. The distance between the two dragging wheels can be conveniently adjusted, the dragging wheels are prevented from scratching the roller surface of a roller, and meanwhile the labor intensity of workers can be reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of roll laser cladding, and particularly relates to an adjustable roller neck idler support device and a usage method thereof. Background Art

[0002] Rolls are core components in the metallurgical industry (for example, the diameter of a hot rolling roll can reach Φ1500mm and the weight exceeds 50 tons), and defects such as roll surface wear and cracks need to be repaired regularly (such as laser cladding repair). When laser cladding repair is carried out on a roll, idlers are required to assist in supporting the roll to reduce the load on the lathe center. At the same time, it is required that the roll and the lathe center have high concentricity, and it is necessary to prevent the idlers from scratching the roll surface during the laser cladding process.

[0003] In order to be applicable to rolls of different models and sizes, it is necessary to adjust the spacing between the idlers on the support before use. However, traditional supports use welded frames (such as H-shaped steel welded bases), and when adjusting the spacing, bolts need to be disassembled and repositioned, and the single adjustment takes more than 2 hours.

[0004] Traditional idlers are generally made of iron. When the idler is in contact with the roll, the iron idler directly rubs against the roll (the friction coefficient is 0.15 - 0.3), resulting in a roll surface scratch rate of more than 5%, and an additional polishing process is required, which not only prolongs the laser cladding time of the roll but also increases the cost.

[0005] At the same time, when laser cladding is carried out on the roll, the cutting force of the lathe is transmitted to the roll through the support, thereby causing resonance between the roll and the idler, affecting the uniformity of the laser cladding layer. To ensure the uniformity of the laser cladding layer, manual intervention is required frequently, resulting in a greatly increased labor intensity of the workers. Summary of the Invention

[0006] In order to solve the problem that it takes a long time to adjust the spacing between two idlers in the prior art, to solve the problem that traditional iron idlers are likely to scratch the roll surface, and at the same time to solve the problem of frequent manual intervention in the positions of the roll and the idlers. The present invention provides an adjustable roller neck idler support device and a usage method thereof, which can conveniently adjust the spacing between two idlers, prevent the idlers from scratching the roll surface, and at the same time can reduce the labor intensity of workers.

[0007] The technical solution adopted by the adjustable roller neck idler support device and the usage method thereof of the present invention is as follows: An adjustable roller neck idler support device includes a buffer idler assembly having two idlers in contact with the roll diameter. The two idlers in the buffer idler assembly are symmetrically arranged, and a sheath layer is coated on the surface of each idler. The bottom of the buffer idler assembly is connected with a horizontal adjustment unit, which can adjust the center distance between the two idlers of the buffer idler assembly; the bottom of the horizontal adjustment unit is connected with an axial adjustment unit through a vertical adjustment unit. The vertical adjustment unit can adjust the height of the buffer idler assembly, and at the same time the axial adjustment unit can adjust the axial position of the buffer idler assembly.

[0008] A further improvement of the technical solution of the present invention is that: the buffer idler assembly includes a carrier seat located below the idler for installing the idler, and each idler is connected to the carrier seat through a vertical buffer mechanism.

[0009] A further improvement of the technical solution of the present invention is that: the material of the sheath layer is copper alloy, and the thickness of the sheath layer is 3-5 mm, and the hardness is 60-80 HB.

[0010] A further improvement of the above technical solution of the present invention is that: the horizontal adjustment unit includes an adjustment groove opened along the length direction of the carrier seat. An adjustment block corresponding to the idler is slidably arranged in the adjustment groove. A bidirectional adjustment rod that is rotatable and penetrates through the adjustment block is also arranged in the adjustment groove. When the bidirectional adjustment rod rotates, the two adjustment blocks can approach or move away from each other simultaneously.

[0011] A further improvement of the above technical solution of the present invention is that: the top of the buffer mechanism is connected to the corresponding idler through a connecting frame, and the bottom of the buffer mechanism is connected to the corresponding adjustment block.

[0012] A further improvement of the technical solution of the present invention is that: the horizontal adjustment unit can achieve stepless adjustment of 240-600 mm, and the adjustment accuracy is ±0.3 mm.

[0013] A further improvement of the technical solution of the present invention is that: the axial adjustment unit includes a base located below the vertical adjustment unit and connected to the vertical adjustment unit. Two sliders embedded in the machine tool slide rail are symmetrically arranged at the bottom of the base. A moving gear is arranged on the inner or outer side of the two sliders. At the same time, a fixed rack meshing with the moving gear is arranged on the ground.

[0014] A usage method of an adjustable roll neck idler support device, using the above support device, includes the following steps: S1. Determine the center distance between the two idlers in the buffer idler assembly according to the roll diameter of the roll to be machined; S2. Adjust the center distance between the two idlers in the buffer idler assembly through the horizontal adjustment unit; S3. Place the roll diameter of the roll between the two idlers in the adjusted buffer idler assembly through the overhead crane; S4. Make the center height of the roll diameter of the roll the same as that of the lathe center through the vertical adjustment unit; S5. Make the roll diameter of the roll contact the lathe center by means of the axial adjustment unit.

[0015] Due to the adoption of the above technical solutions, the technological progress achieved by the present invention includes: With the buffer mechanism provided in the present invention, when the roll is hoisted onto the idler wheel, the impact displacement generated during the hoisting by the overhead crane can be absorbed; with the sheath layer provided in the present invention, the surface of the roll can be prevented from being scratched by the idler wheel; through the mutual cooperation of the buffer mechanism and the sheath layer in the present invention, the scratch rate of the roll surface can be reduced; with the horizontal adjustment unit in the present invention, the distance between the two idler wheels in the buffer idler wheel assembly can be conveniently adjusted; with the vertical adjustment unit provided in the present invention, the center height of the roll can be conveniently adjusted so that the center height of the roll is the same as the height of the machine tool center; at the same time, with the axial adjustment unit provided in the present invention, the axial position of the roll can be conveniently adjusted so that the center of the roll diameter contacts the machine tool center; through the mutual cooperation of the horizontal adjustment unit, the vertical adjustment unit and the axial adjustment unit in the present invention, the positions of the idler wheel and the roll can be conveniently adjusted, reducing the manual labor intensity.

[0016] By rotating the bidirectional adjustment rod in the present invention, the two adjustment blocks can move closer to or away from each other along the adjustment groove at the same time, thereby driving the corresponding idler wheels to move closer to or away from each other, so as to conveniently adjust the distance between the two idler wheels in the buffer idler wheel assembly.

[0017] By providing a slider embedded in the machine tool slide rail in the present invention, when the roll is vibrated during the laser cladding process, the roll can be prevented from undergoing horizontal displacement in its radial direction; at the same time, through the mutual cooperation of the moving gear and the fixed rack provided, when the roll is vibrated during the laser cladding process, the roll can be prevented from undergoing horizontal displacement in its length direction. Description of the Drawings

[0018] Figure 1 and Figure 2 are schematic structural diagrams of an adjustable roll neck idler wheel support device of the present invention at different angles; Figure 3 is a schematic structural diagram of the horizontal adjustment unit of an adjustable roll neck idler wheel support device of the present invention; Figure 4 is a schematic connection structure diagram of the idler wheel and the buffer mechanism of an adjustable roll neck idler wheel support device of the present invention.

[0019] In the drawings: 1. Buffer idler wheel assembly; 11. Idler wheel; 12. Buffer mechanism; 13. Bracket; 14. Idler wheel seat; 2. Horizontal adjustment unit; 21. Adjustment groove; 22. Adjustment block; 23. Bidirectional adjustment rod; 3. Vertical adjustment unit; 4. Axial adjustment unit; 41. Slide block; 42. Moving gear; 43. Base. Detailed implementation manners

[0020] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in conjunction with the specific implementation manners and with reference to the accompanying drawings. In the following description, the description of well-known structures and technologies is omitted to avoid unnecessarily confusing the concepts of the present invention.

[0021] First, refer to Figure 1 and Figure 2 It can be seen that the present invention provides an adjustable roll neck carrier bracket device, which includes a buffer carrier roller assembly 1, a horizontal adjustment unit 2, a vertical adjustment unit 3, and an axial adjustment unit 4 arranged in sequence from top to bottom. When the present invention is used, the buffer carrier roller assembly 1 can not only absorb the impact displacement generated when the overhead crane hoists the roll, but also prevent the carrier roller 11 from scratching the surface of the roll; in addition, when the present invention is used, the horizontal adjustment unit 2 can conveniently and quickly adjust the distance between the two carrier rollers 11 in the buffer carrier roller assembly 1; when the present invention is used, the vertical adjustment unit 3 can conveniently and quickly adjust the center height of the roll so that the center height of the roll is the same as the height of the machine tool center; at the same time, when the present invention is used, the axial adjustment unit 4 can conveniently and quickly adjust the axial position of the roll so that the center of the roll diameter contacts the machine tool center.

[0022] In the present invention, the buffer carrier roller assembly 1 includes two carrier rollers 11 arranged symmetrically side by side, and a sheath layer is coated on the surface of each carrier roller 11. In this embodiment, the sheath layer is made of copper alloy (such as aluminum bronze and other materials), and it is ensured that the hardness of the sheath layer is designed to be 60-80 HB, preferably 70 HB, and the thickness of the sheath layer is 3-5 mm, preferably 4 mm. In this embodiment, the hardness of the sheath layer made of copper alloy is significantly lower than the surface hardness of the roll. This matching principle of "soft-hard" combination can ensure that the sheath layer undergoes controllable elastic deformation when contacting the roll, rather than generating plowing scratches, thereby preventing the carrier roller 11 from scratching the roll surface.

[0023] In this embodiment, as Figure 4As shown, a bracket 13 is arranged below each towing wheel 11, and each bracket 13 is connected to the corresponding towing wheel 11. The towing wheel 11 can rotate on the corresponding bracket 13. At the same time, a vertical buffer mechanism 12 (such as a spring rod, etc.) is connected to the bottom of each bracket 13. The buffer mechanism 12 can only expand and contract in the vertical direction. A horizontal towing wheel seat 14 is arranged at the bottom of the buffer mechanism 12, and the bottom of the buffer mechanism 12 is connected to the top of the towing wheel seat 14. When the overhead crane hoists the roll and places it on the towing wheel 11, the roll will generate a downward impact on the towing wheel 11. At this time, the buffer mechanism 12 can absorb the generated impact force, thereby preventing the roll from generating a large displacement in the vertical direction during the hoisting of the roll, and further avoiding the roll surface from being scratched by the towing wheel 11.

[0024] Reference Figure 1 and Figure 3 It can be known that in this embodiment, when the horizontal adjustment unit 2 is specifically arranged, it includes an adjustment groove 21 opened along the length direction of the towing wheel seat 14. Two slidable adjustment blocks 22 are arranged in the adjustment groove 21. The two adjustment blocks 22 correspond to the two towing wheels 11 one by one. At the same time, each adjustment block 22 is connected to the bracket 13 of the corresponding towing wheel 11 through the buffer mechanism 12. Continuing to refer to Figure 3 It can be known that a bidirectional adjustment rod 23 is also arranged in the adjustment groove 21. The bidirectional adjustment rod 23 penetrates through the two adjustment blocks 22 and is threadedly connected to the adjustment blocks 22. When the bidirectional adjustment rod 23 rotates, the two adjustment blocks 22 approach or move away from each other simultaneously. The distance between the two towing wheels 11 can be steplessly adjusted within the range of 240 - 600 mm through the bidirectional adjustment rod 23, and the adjustment accuracy is ±0.3 mm. In order to facilitate driving the bidirectional adjustment rod 23 to rotate, one end of the bidirectional adjustment rod 23 can be extended to the outside of the towing wheel seat 14 and fixedly sleeved with a handwheel. At the same time, the above handwheel can be replaced with a driving motor, and the driving motor is arranged on the side wall of the towing wheel seat 14 and extends into the towing wheel seat 14 to be connected to one end of the bidirectional adjustment rod 23.

[0025] Reference Figure 1 It can be known that in this embodiment, the vertical adjustment unit 3 includes a hydraulic cylinder fixed to the bottom of the towing wheel seat 14 and fixedly connected to the towing wheel seat 14. By adjusting the length of the hydraulic cylinder, the center height of the roll on the towing wheel 11 can be adjusted until the center height of the roll is the same as the height of the machine tool center.

[0026] Reference Figure 2It can be seen that in this embodiment, the axial adjustment unit 4 includes a base 43, which is located at the bottom of the above hydraulic cylinder and connected to the bottom end of the hydraulic cylinder. At the same time, two symmetrically arranged sliders 41 are fixedly connected to the bottom of the base 43, and the two sliders 41 are respectively embedded in the machine tool slide rails. At the same time, a rotating moving gear 42 is provided inside or outside the two sliders 41, and the moving gear 42 meshes with a fixed rack fixed on the ground. In order to facilitate driving the rotation of the moving gear 42 to adjust the axial position of the roll, in this embodiment, a rotating rod passing through the moving gear 42 is arranged in the base 43, and the rotating rod is in interference fit with the moving gear 42. At the same time, a driving motor for driving the rotation of the rotating rod is fixed on one side of the base 43. The driving motor drives the rotation of the rotating rod and the moving gear 42, and the rotating moving gear 42 moves along the fixed rack, so as to conveniently adjust the axial position of the roll.

[0027] At the same time, in this embodiment, when connecting between various components, they can all be connected through quick-release connectors and quick-release bolts, so that when a certain component is damaged, it is convenient to disassemble, repair or replace the damaged component.

[0028] The present invention also provides a usage method of an adjustable roll neck carrier device, including the following steps: S1. Determine the center distance between the two carriers 11 in the buffer carrier assembly 1 according to the roll diameter to be processed.

[0029] S2. Adjust the center distance between the two carriers 11 in the buffer carrier assembly 1 through the horizontal adjustment unit 2.

[0030] S3. Place the roll diameter of the roll between the two carriers 11 in the adjusted buffer carrier assembly 1 through a crane.

[0031] S4. Make the center height of the roll diameter of the roll the same as that of the lathe center through the vertical adjustment unit 3.

[0032] S5. Make the roll diameter of the roll contact the lathe center through the axial adjustment unit 4.

[0033] In the above embodiments, the present invention provides an adjustable roller neck carrier bracket device and a usage method. Through the provided buffer mechanism, when hoisting a roller onto the carrier wheels, the impact displacement generated during the hoisting by the overhead crane can be absorbed; through the provided sheath layer in the present invention, the surface of the roller can be prevented from being scratched by the carrier wheels; through the mutual cooperation of the buffer mechanism and the sheath layer, the scratch rate of the roller surface can be reduced; through the horizontal adjustment unit, the distance between the two carrier wheels in the buffer carrier wheel assembly can be conveniently adjusted; through the provided vertical adjustment unit in the present invention, the center height of the roller can be conveniently adjusted to make the center height of the roller the same as the height of the machine tool center; at the same time, through the provided axial adjustment unit in the present invention, the axial position of the roller can be conveniently adjusted to make the center of the roller diameter contact the machine tool center; through the mutual cooperation of the horizontal adjustment unit, the vertical adjustment unit and the axial adjustment unit in the present invention, the positions of the carrier wheels and the roller can be conveniently adjusted, reducing the manual labor intensity.

[0034] The above-described embodiments are only descriptions of the preferred embodiments of the present invention, and do not limit the concept and scope of the present invention. Without departing from the design concept of the present invention, various variations and improvements made by those of ordinary skill in the art to the technical solutions of the present invention shall fall within the protection scope of the present invention. The technical content claimed by the present invention has been fully recorded in the claims.

Claims

1. An adjustable roller neck carrier device, characterized in that: It includes a buffer idler assembly (1) with two idlers (11) in contact with the roll diameter. The two idlers (11) in the buffer idler assembly (1) are symmetrically arranged, and the surface of each idler (11) is coated with a sheath layer. The bottom of the buffer idler assembly (1) is connected to a horizontal adjustment unit (2), and the horizontal adjustment unit (2) can adjust the center distance between the two idlers (11) of the buffer idler assembly (1). The bottom of the horizontal adjustment unit (2) is connected to an axial adjustment unit (4) through a vertical adjustment unit (3). The vertical adjustment unit (3) can adjust the height of the buffer idler assembly (1), and at the same time, the axial adjustment unit (4) can adjust the axial position of the buffer idler assembly (1).

2. The adjustable roll neck idler bracket device according to claim 1, characterized in that: The buffer idler assembly (1) includes a carrier (14) located below the idler (11) for mounting the idler (11). Each idler (11) is connected to the carrier (14) through a vertical buffer mechanism (12).

3. An adjustable roller neck carrier bracket device according to claim 1, characterized in that: The material of the sheath layer is copper alloy, and the thickness of the sheath layer is 3 - 5 mm, and the hardness is 60 - 80 HB.

4. An adjustable roller neck idler bracket device according to claim 2, characterized in that: The horizontal adjustment unit (2) includes an adjustment groove (21) opened along the length direction of the carrier (14). In the adjustment groove (21), adjustment blocks (22) corresponding to the idlers (11) are slidably arranged. In the adjustment groove (21), there is also a bidirectional adjustment rod (23) that can rotate and penetrates through the adjustment block (22). When the bidirectional adjustment rod (23) rotates, the two adjustment blocks (22) can approach or move away from each other simultaneously.

5. An adjustable roller neck carrier bracket device according to claim 4, characterized in that: The top of the buffer mechanism (12) is connected to the corresponding idler (11) through a connecting frame, and the bottom of the buffer mechanism (12) is connected to the corresponding adjustment block (22).

6. An adjustable roller neck carrier bracket device according to claim 1, characterized in that: The horizontal adjustment unit (2) can achieve stepless adjustment of 240 - 600 mm, and the adjustment accuracy is ±0.3 mm.

7. An adjustable roller neck idler bracket device according to claim 1, characterized in that: The axial adjustment unit (4) includes a base (43) located below the vertical adjustment unit (3) and connected to the vertical adjustment unit (3). Two sliders (41) embedded in the machine tool slide rail are symmetrically arranged at the bottom of the base (43). A moving gear (42) is arranged on the inner or outer side of the two sliders (41). At the same time, a fixed rack meshing with the moving gear (42) is arranged on the ground.

8. A method for using an adjustable roller neck carrier device, characterized in that: Using the bracket device according to any one of claims 1 - 7, includes the following steps: S1. Determine the center distance between the two idlers (11) in the buffer idler assembly (1) according to the roll diameter to be machined. S2. Adjust the center distance between the two idlers (11) in the buffer idler assembly (1) through the horizontal adjustment unit (2). S3. Place the roll diameter of the roll between the two idlers (11) in the adjusted buffer idler assembly (1) through a crane. S4. Make the center height of the roll diameter of the roll the same as that of the lathe center through the vertical adjustment unit (3). S5. Make the roll diameter of the roll contact with the lathe center through the axial adjustment unit (4).

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