Shifting device suitable for roller equipment
By designing a shifting device for rolling equipment, including drive, pull rod and locking parts, the inefficiency and safety hazards of rolling roll pushing equipment in the prior art are solved, efficient pushing or rolling of rolls is achieved, and the safety of staff is improved.
Patent Information
- Application Number
- CN202420482764.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-13
- Publication Date
- 2025-03-18
- Estimated Expiration
- 2034-03-13
AI Technical Summary
During the production process of hot-rolled strip steel, existing roll pushing and pulling equipment has problems of bolt breakage and piston rod bending caused by rigid contact between hydraulic cylinders and roll change trucks, and the roll change truck is prone to impacting the roll pulling rods, which poses safety hazards.
A displacement device including a driving part, a pull rod part and a locking part is designed, and the pull rod part is connected to the roll through a hydraulic cylinder drive pull rod part to realize the pushing or pushing of the roll, and the stable connection between the drive and pull rod part is ensured through the locking part.
It improves the rolling in or outgoing efficiency, reduces the risk of equipment damage, and enhances the safety of on-site operations of staff.
Smart Images
Figure CN222625775U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a shifting device, in particular to a device which can push a roll out of or into a rolling mill during a roll replacement operation, and belongs to the technical field of roll equipment. Background Art
[0002] In the production process of hot-rolled strip steel, as the rolling time goes by, there are different degrees of wear in the contact process between the roll and the strip steel, and a fatigue layer of varying thickness is formed on the roll surface, accompanied by problems such as microcracks and oxide film shedding, which affect the surface quality and plate quality of the strip steel. Therefore, the roll needs to be replaced according to the rolling cycle to ensure the stability of the strip steel quality. At present, the roller is equipped with a professional roll push-pull device, which is used to push the roll into or out of the rolling mill. In the actual production process, there are the following problems: first, since the cylinder head of the hydraulic cylinder and the roll-changing trolley are in rigid contact, the impact force is large, resulting in the bolts connecting the cylinder head and the roll-changing trolley breaking and the piston rod bending; second, the roll-changing trolley often hits the roll tie rod, causing the roll-changing trolley to rush onto the roll tie rod, or the roll tie rod is generally damaged; third, after the roll is pushed into the roll, it is necessary to manually remove the hook, which poses a safety hazard; therefore, a roll equipment shifting device is needed, which is required to assist the staff to efficiently push the roll out of or into the rolling mill, while ensuring the personal safety of the staff. Utility Model Content
[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a shifting device suitable for roller equipment, which can not only improve the efficiency of pushing the roller into or out of the rolling mill, but also improve the safety of on-site operations of staff.
[0004] The problem described in the utility model is solved by the following technical solutions:
[0005] A displacement device suitable for a rolling mill equipment comprises a driving part, a pull rod part and a locking part; one end of the pull rod part is connected to the rolling mill bearing box; the driving part is arranged on the side of the pull rod part away from the rolling mill; the locking part is arranged on the pull rod part; the driving part comprises a hydraulic cylinder, a base and a docking piece; the hydraulic cylinder is arranged on the ground; walking wheels are arranged on both sides of the base; a hole is arranged on one end face of the base, and a limiting ring is arranged at the outlet of the hole; the end of the hydraulic cylinder piston rod is penetrated by the limiting ring, and the end of the hydraulic cylinder piston rod is arranged with a limiting column, the limiting column is located in the hole of the base, and the diameter of the limiting column is larger than the inner diameter of the limiting ring; a spring is arranged in the hole of the base, and the limiting column is in contact with the spring; the docking piece is arranged at one end of the base close to the pull rod part.
[0006] The above-mentioned shifting device is suitable for rolling equipment, and the docking part includes a connecting rod and a pull block; a groove is provided at one end of the upper end surface of the base close to the pull rod part; one end of the connecting rod is axially connected in the groove of the upper end surface of the base, and a pull block is provided at the end of the lower end surface of the connecting rod away from the hydraulic cylinder.
[0007] The above-mentioned shifting device is suitable for rolling mill equipment, and the pulling rod part includes a long rod, a limit block and a hook-unhooking mechanism; one end of the long rod is connected to the rolling mill bearing box; a limit block is provided at the end of the upper end face of the long rod away from the rolling mill, and the end face of the limit block away from the rolling mill is an inclined surface, and the highest point of this inclined surface is closer to the rolling mill than the lowest point; the hook-unhooking mechanism is provided on the upper end face of the long rod.
[0008] The above-mentioned shifting device is suitable for rolling mill equipment, and the unhooking mechanism includes a flap and a hinged seat; the upper end surface of the long rod is provided with a vertical strip hole, and the hinged seat is arranged at the bottom center of the inner wall of the strip hole of the long rod; the bottom end of the flap is hingedly arranged on the hinged seat; the two sides of the flap are respectively connected to the inner walls of the two sides of the strip hole of the long rod with springs; the length of the flap is greater than the minimum distance between the hinged seat and the top of the limit block.
[0009] The above-mentioned shifting device is suitable for rolling mill equipment, and the locking part includes a horizontal plate, a cylinder and a U-shaped fork; the end face of the limit block close to the rolling mill is in close contact with the end face of the pulling block close to the hydraulic cylinder; the horizontal plate is arranged on the side wall of the long rod; the cylinder is arranged on the upper end face of the horizontal plate, and a U-shaped fork is arranged on the end of the cylinder piston rod; fork holes are arranged on the end faces of the limit block and the pulling block close to the cylinder, and the two forks of the U-shaped fork are respectively inserted in the fork holes of the limit block and the pulling block.
[0010] The utility model drives the pull rod part to move forward or backward through the driving part, and the pull rod part drives the roller part to move forward or backward synchronously, thereby achieving the purpose of moving the roller out and in; the locking part enables the driving part and the pull rod part to be more reliably connected together to avoid separation during the movement. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 This is a schematic diagram of the first three-dimensional structure of the utility model;
[0012] Figure 2 It is a schematic diagram of the second three-dimensional structure of the utility model.
[0013] The list of numbers in the figure is: 1. hydraulic cylinder, 2. base, 3. connecting rod, 4. pulling block, 5. long rod, 6. limiting block, 7. flap, 8. cylinder, 9. U-shaped fork. DETAILED DESCRIPTION
[0014] See also Figure 1 and Figure 2 The utility model includes a driving part, a pull rod part and a locking part; the driving part can drive the pull rod part forward or backward, and at the same time drive the roller part to move synchronously; one end of the pull rod part is connected to the roller bearing box; the driving part is arranged on the side of the pull rod part away from the roller; the locking part can provide protection for the docking of the driving part and the pull rod part to avoid accidental separation during the movement; the locking part is arranged on the pull rod part.
[0015] The driving part includes a hydraulic cylinder 1, a base 2 and a docking piece; the hydraulic cylinder 1 is arranged on the ground; walking wheels are arranged on both sides of the base 2; a hole is arranged on one end face of the base 2, and a limiting ring is arranged at the outlet of the hole; the limiting ring can prevent the piston rod of the hydraulic cylinder 1 from detaching from the base 2; the end of the piston rod of the hydraulic cylinder 1 is penetrated by a limiting ring, and the end of the piston rod of the hydraulic cylinder 1 is provided with a limiting column, the limiting column is located in the hole of the base 2, and the diameter of the limiting column is larger than the inner diameter of the limiting ring; a spring is arranged in the hole of the base 2, and the limiting column is in contact with the spring; the spring provides a buffer between the hydraulic cylinder 1 and the base 2, avoids hard collision contact, and provides protection; the docking piece is arranged at one end of the base 2 close to the pull rod part.
[0016] The docking parts include a connecting rod 3 and a pulling block 4; a groove is provided at one end of the upper end face of the base 2 close to the pulling rod part; one end of the connecting rod 3 is axially connected in the groove of the upper end face of the base 2, and the connecting rod 3 rotates around the axis, thereby driving the pulling block 4 to be rotationally lifted or lowered, and docking with the limit block 6 through the pulling block 4; a pulling block 4 is provided at one end of the lower end face of the connecting rod 3 away from the hydraulic cylinder 1.
[0017] The pulling rod part includes a long rod 5, a limit block 6 and a hook-off mechanism; one end of the long rod 5 is connected to the roller bearing box; a limit block 6 is provided at the end of the upper end face of the long rod 5 away from the roller, and the end face of the limit block 6 away from the roller is an inclined surface, and the highest point of this inclined surface is closer to the roller than the lowest point; the inclined surface ensures that when the pulling block 4 moves forward and contacts the inclined surface, it naturally rises until it passes over the limit block 6 and then falls. At this time, when the hydraulic cylinder retracts the piston rod, the pulling block 4 pulls the limit block 6 backward; the hook-off mechanism is arranged on the upper end face of the long rod 5.
[0018] The hook-untying mechanism includes a flap 7 and a hinge seat; the upper end surface of the long rod 5 is provided with a vertical strip hole, and the hinge seat is arranged at the bottom center of the inner wall of the strip hole of the long rod 5; the bottom end of the flap 7 is hinged on the hinge seat; the flap 7 can be flipped through the hinge seat; the two sides of the flap 7 are respectively connected to the inner walls of the two sides of the strip hole of the long rod 5 with springs; the spring ensures that the flap 7 is in an upright state in a normal state; the length of the flap 7 is greater than the minimum distance between the hinge seat and the top of the limit block 6, which ensures that the flap 7 can be placed on the limit block 6 by flipping.
[0019] The locking part includes a horizontal plate, a cylinder 8 and a U-shaped fork 9; the end face of the limit block 6 close to the rolling roller is in close contact with the end face of the pulling block 4 close to the hydraulic cylinder 1; the horizontal plate is arranged on the side wall of the long rod 5; the cylinder 8 is arranged on the upper end face of the horizontal plate, and a U-shaped fork 9 is arranged at the end of the piston rod of the cylinder 8; the cylinder 8 drives the U-shaped fork 9 to move, and the U-shaped fork 9 is inserted into the fork hole or leaves by moving, and the positions of the pulling block 4 and the limit block 6 are restricted by the U-shaped fork 9, so that they are not easy to separate; the limit block 6 and the pulling block 4 are both provided with fork holes on the end faces close to the cylinder 8, and the two forks of the U-shaped fork 9 are respectively inserted into the fork holes of the limit block 6 and the pulling block 4.
[0020] Actual use process: when it is necessary to pull out the rolling roller, the hydraulic cylinder 1 starts to extend the piston rod, and the connecting rod 3 and the pulling block 4 move forward until the pulling block 4 passes the limit block 6, at which time the pulling block 4 and the limit block 6 are engaged with each other; the cylinder moves, and the U-shaped fork is inserted into place to relatively fix the pulling block 4 and the limit block 6; then the hydraulic cylinder 1 retracts the piston rod, and at this time the device and the rolling roller part move away from the rolling line synchronously; after the rolling roller is moved out of the rolling line, the hydraulic cylinder 1 drives the piston rod forward, and the pulling block 4 pushes the flap 7 during the forward movement, and the flap 7 tilts until the pulling block 4 passes the flap 7, and then the piston rod of the hydraulic cylinder 1 is retracted, and the pulling block 4 drives the flap 7 to flip in the opposite direction until the flap 7 is placed on the limit block 6, and the returning pulling block 4 moves on the flap 7 and passes the limit block 6 until the pulling block 4 completely leaves the limit block 6, and the unhooking operation is completed.
[0021] When it is necessary to push the roller, the piston rod of the hydraulic cylinder extends out, and the base 2 body pushes the long rod 5 body to directly push the roller to reset. After the roller is reset, the piston rod of the hydraulic cylinder 1 is retracted, and the pull block 4 drives the flap 7 to flip in the opposite direction until the flap 7 rests on the limit block 6. The return pull block 4 moves on the flap 7 and passes over the limit block 6 until the pull block 4 completely leaves the limit block 6. At this point, the roller reset operation is completed.
Claims
1. A shifting device suitable for a roller device, characterized in that: It comprises a driving part, a pull rod part and a locking part; one end of the pull rod part is connected to the roller bearing box; the driving part is arranged on the side of the pull rod part away from the roller; the locking part is arranged on the pull rod part; the driving part comprises a hydraulic cylinder (1), a base (2) and a docking piece; the hydraulic cylinder (1) is arranged on the ground; both sides of the base (2) are provided with walking wheels; a hole is arranged on one end surface of the base (2), and a limiting ring is arranged at the outlet of the hole; the end of the piston rod of the hydraulic cylinder (1) is penetrated by the limiting ring, and the end of the piston rod of the hydraulic cylinder (1) is provided with a limiting column, the limiting column is located in the hole of the base (2), and the diameter of the limiting column is larger than the inner diameter of the limiting ring; a spring is arranged in the hole of the base (2), and the limiting column contacts the spring; the docking piece is arranged at one end of the base (2) close to the pull rod part.
2. The shifting device for roller equipment according to claim 1, characterized in that: The docking member comprises a connecting rod (3) and a pull block (4); a groove is provided at one end of the upper end surface of the base (2) close to the pull rod portion; one end of the connecting rod (3) is axially connected in the groove of the upper end surface of the base (2), and a pull block (4) is provided at one end of the lower end surface of the connecting rod (3) away from the hydraulic cylinder (1).
3. The shifting device suitable for roller equipment according to claim 2, characterized in that: The pull rod part comprises a long rod (5), a limit block (6) and a hook-off mechanism; one end of the long rod (5) is connected to the roller bearing box; a limit block (6) is provided at the end of the upper end face of the long rod (5) away from the roller, and the end face of the limit block (6) away from the roller is an inclined surface, and the highest point of the inclined surface is closer to the roller than the lowest point; the hook-off mechanism is provided at the upper end face of the long rod (5).
4. The shifting device suitable for roller equipment according to claim 3, characterized in that: The hook-removing mechanism comprises a flap (7) and a hinge seat; the upper end surface of the long rod (5) is provided with a vertical strip hole, and the hinge seat is arranged at the bottom center of the inner wall of the strip hole of the long rod (5); the bottom end of the flap (7) is hingedly arranged on the hinge seat; the two sides of the flap (7) are respectively connected to the inner walls of the strip hole of the long rod (5) by springs; the length of the flap (7) is greater than the minimum distance between the hinge seat and the top of the limit block (6).
5. The shifting device suitable for roller equipment according to claim 4, characterized in that: The locking part comprises a horizontal plate, a cylinder (8) and a U-shaped fork (9); the end surface of the limit block (6) close to the roller is in close contact with the end surface of the pull block (4) close to the hydraulic cylinder (1); the horizontal plate is arranged on the side wall of the long rod (5); the cylinder (8) is arranged on the upper end surface of the horizontal plate, and the end of the piston rod of the cylinder (8) is provided with a U-shaped fork (9); the end surfaces of the limit block (6) and the pull block (4) close to the cylinder (8) are both provided with fork holes, and the two forks of the U-shaped fork (9) are respectively inserted into the fork holes of the limit block (6) and the pull block (4).