Rolling mill falling roller grabbing device
By designing a rolling mill drop roller grasping device including connecting rod group, elastic structure, holder and pull rod, the problem of difficult to grasp and drag work rollers in the prior art is solved, and fast and firm clamping and Adaptability improves the reliability and operating efficiency of the equipment.
Patent Information
- Application Number
- CN202323647712.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-02-14
- Estimated Expiration
- 2033-12-29
AI Technical Summary
During the rolling process of existing rolling mill equipment, due to the smooth surface, large weight and narrow working space of the working roller, it is difficult for traditional handling methods to effectively grasp and drag, and it is easy to slip, run off or get stuck.
A rolling mill drop roller grasping device is designed, including a connecting rod group, an elastic structure, a holder and a pull rod. The ring-shaped structure consisting of two semi-rings is connected by a rotating structure and can be quickly closed and opened; the shear-shaped fork rod and oblique rod in the connecting rod group interact to convert the tension into clamping force; the elastic structure Used to adjust the clamping force.
The device can quickly and firmly clamp the working rollers, reduce the risk of slippage, adapt to rolls of different diameters, improve the versatility and practicality of the device, simplify the operation process, and reduce the difficulty of maintenance.
Smart Images
Figure CN222470224U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of rolling mill equipment, and specifically provides a rolling mill drop roll grabbing device. Background Art
[0002] In the rolling process of the existing rolling mill, it is a common problem that the working roll falls due to broken belts or improper operation. The smooth surface and heavy weight of the working roll, coupled with the narrow working space, make the traditional handling method face great challenges. In particular, when using a sling to transport the working roll, the sling is easy to slip due to the small difference in the diameter of the roll body and the roll neck, resulting in dragging failure. In addition, since the sling is put on one end of the working roll and the other end is a free end, the working roll is easy to deviate or get stuck, further increasing the difficulty and risk of the operation.
[0003] Accordingly, the art requires a new rolling mill roll grabbing device to solve the above technical problems. Utility Model Content
[0004] The utility model aims to solve the above technical problem, that is, to solve the problem that the existing drop roller is difficult to grasp.
[0005] The utility model provides a rolling mill drop roll grabbing device, the grabbing device comprises a connecting rod group, an elastic structure, a gripper and a pull rod, wherein: the gripper is an annular structure composed of two semicircular rings, the two semicircular rings are connected by a rotating structure, so that the two semicircles form an annular structure for clamping the drop roll when they are closed around the rotating structure; the connecting rod group comprises a cross bar, two oblique rods and a scissor-shaped fork rod composed of two connecting rods connected by rotation in the middle, the first end of the scissor-shaped fork rod is respectively connected to the two semicircular rings; the second end of the scissor-shaped fork rod is respectively connected to the first end of the two oblique rods, and the two The second ends of the diagonal rods are away from the scissor-shaped fork rods and gradually approach each other, and the second ends of the two diagonal rods are rotatably connected to the two ends of the cross rod; the elastic structure is arranged in the connecting rod group, which is used to adjust the opening and closing spacing of the scissor-shaped fork rods; the middle part of the cross rod is connected to the pull rod, which is used to transfer the tension exerted on the pull rod to the cross rod, when the cross rod is subjected to a pulling force away from the clamp, the first ends of the diagonal rods will approach each other so that the clamp clamps the drop roller, and when the cross rod receives a thrust toward the clamp, the first ends of the diagonal rods will separate from each other so that the clamp releases the drop roller.
[0006] Based on the above settings, the gripper consists of a ring structure consisting of two semicircular rings that can be quickly closed and opened, providing the working roll with the ability to quickly clamp and release. The interaction between the scissor-shaped fork rod and the diagonal rod can convert the pulling force into clamping force, ensuring that the gripper can firmly clamp the drop roll during the dragging process and reduce the risk of slipping. The addition of the elastic structure allows the gripping device to adjust the clamping force according to different working conditions, ensuring stability and strong clamping, and effectively preventing the working roll from falling off or being damaged during the dragging process; and the combined structure of the crossbar, pull rod and handle, as well as the design of the pentagonal connecting rod, is simple to operate, labor-saving, and easy to control, avoiding the problem of offset and jamming during the dragging process; the detachable bolt connection and overall structural design simplify the maintenance and replacement of the device, reduce the difficulty of maintenance, and shorten the maintenance time.
[0007] In the preferred technical solution of the above-mentioned grasping device, the tensioning structure includes an elastic block and a limiting rod, wherein: the connection between the pull rod and the cross rod is arranged as a screw structure, and is threadedly connected to the cross rod; the pull rod passes through the cross rod and is connected to the elastic block; the elastic block is located between the cross rod and the scissor-like fork rod, and channels are respectively formed on both sides of the tensioning block, and the limiting rod is slidably arranged in the channels, and the limiting rod is fixedly mounted on the second end of the scissor-like fork rod, and the second end of the scissor-like fork rod is pushed and pulled by the limiting rod to clamp and separate the scissor-like fork rod.
[0008] Based on the above settings, the design of the tension structure makes it possible to adjust the opening and closing spacing of the scissor-like fork rods, thereby adapting to rollers of different diameters and improving the versatility and practicality of the device; and the structure of the tension block and the limit rod allows the operator to control the opening and closing of the scissor-like fork rods by pushing and pulling the limit rod. This design simplifies the operation process and improves work efficiency and convenience.
[0009] In a preferred technical solution of the above-mentioned grabbing device, the channel is arranged in an inclined shape along the length direction of the limiting rod, so as to lift or loosen the limiting rod when the tension block moves.
[0010] Based on the above arrangement, the channel is arranged to be inclined, so that when the tension block moves, the limit rod will be lifted up or moved down accordingly, thereby increasing the flexibility of the mechanism and the precision of the control over the scissor-like fork rod.
[0011] In a preferred technical solution of the above grabbing device, a gap is formed between the elastic block and the scissor-like fork rod.
[0012] Based on the above arrangement, the gap formed between the tension block and the scissor-like fork rod can prevent the tension block from blocking the normal displacement of the scissor-like fork rod during operation.
[0013] In a preferred technical solution of the above-mentioned grasping device, a handle is provided at one end of the pull rod away from the pitch-adjusting screw.
[0014] Based on the above arrangement, the setting of the handle makes it more convenient for the operator to control the pulling force, thereby enhancing the comfort of the manual adjustment process and the accuracy of the operation.
[0015] In a preferred technical solution of the above-mentioned grabbing device, the pitch-adjusting screw, the pull rod and the handle are welded into an integral structure.
[0016] Based on the above arrangement, the welded integral structure of the pitch adjusting screw, the pull rod and the handle enhances the overall structural strength and durability and reduces the possibility of cracks and looseness.
[0017] In the preferred technical solution of the above-mentioned grasping device, the rotating structure is a shutter structure.
[0018] Based on the above settings,
[0019] In a preferred technical solution of the above-mentioned grasping device, the output end is connected to the two semi-circular rings via a clamping plate to form a space for the circular motion of the semi-circular rings.
[0020] Based on the above arrangement, the shutter structure as a rotating structure can not only ensure the stable rotation of the two semi-circular rings, but also facilitate assembly, disassembly and maintenance, thereby enhancing the maintainability of the device.
[0021] In the preferred technical solution of the above-mentioned grasping device, the clamping plate is connected to the output end by a detachable bolt so that the gripping device can be replaced.
[0022] Based on the above settings, the design of the clamping plate connection allows the clamp and the semi-circular ring to form a stable circular motion space, ensuring the smoothness and continuity of the clamping process. The use of detachable bolts allows the clamp part to be easily replaced to adapt to different operating requirements or facilitate the maintenance and replacement of the clamp.
[0023] In the preferred technical solution of the above grabbing device, the cross bar and the diagonal bar, the diagonal bar and the scissor-like fork bar, and the center of the scissor-like fork bar are all hinged structures.
[0024] Based on the above arrangement, the cross bar, diagonal bar and scissor-shaped fork bar adopt an articulated structure, which not only improves the flexibility of the structure, but also helps to disperse the load and reduce damage caused by stress concentration, thereby improving the reliability of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings, in which:
[0026] Figure 1The overall structure schematic diagram of the utility model is shown;
[0027] Figure 2 The utility model shows a schematic diagram of the connecting rod group structure and the tension structure.
[0028] Reference numerals:
[0029] 1. Pull rod; 2. Holding device; 3. Cross bar; 4. Diagonal bar; 5. Scissor-shaped fork rod; 6. Elastic block; 7. Limit rod; 8. Adjustment screw; 9. Handle; 10. Clamping plate. DETAILED DESCRIPTION
[0030] The preferred embodiments of the present invention are described below with reference to the accompanying drawings. It should be understood by those skilled in the art that these embodiments are only used to explain the technical principles of the present invention and are not intended to limit the scope of protection of the present invention. Those skilled in the art can make adjustments to them as needed to adapt to specific application scenarios.
[0031] It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "inner", "outer" and the like indicating directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for the convenience of description, and do not indicate or imply that the structure must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.
[0032] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "interconnected", and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0033] See below Figure 1 , Figure 2 ,like Figure 1 , Figure 2As shown, the utility model provides a rolling mill drop roll grabbing device, the grabbing device includes a connecting rod group, a tension structure, a gripper 2 and a pull rod 1, wherein: the gripper 2 is an annular structure composed of two semicircular rings, and the two semicircular rings are connected by a rotating structure so that the two semicircles are closed around the rotating structure to form an annular structure for clamping the drop roll. Of course, it should be noted that the utility model does not impose any restrictions on the specific composition structure of the gripper 2, and those skilled in the art can set it according to their needs. For example, the gripper 2 can be set as two semicircular rings according to the drop roll for clamping. For another example, the gripper 2 can also be an annular clamping structure of other shapes according to other parts that are easy to fall off, as long as the clamping effect of the gripper 2 can be guaranteed to be stable. It should also be noted that the utility model does not impose any restrictions on the specific structure of the rotating structure, and those skilled in the art can set it according to their needs. For example, the rotating structure can be realized by a rotating bearing, and for another example, the rotating structure can also be realized by a louver, as long as it can be ensured that the rotating structure does not affect the work of the two semicircular rings. In this preferred embodiment, the rotating structure is a louver structure. The shutter structure, as a rotating structure, can not only ensure the stable rotation of the two semi-circular rings, but also facilitate assembly, disassembly and maintenance, thus enhancing the maintainability of the device.
[0034] The connecting rod group includes a cross bar 3, two diagonal bars 4 and a scissor-shaped fork rod 5 which is formed by a rotational connection between the middle parts of two connecting rods. The first ends of the scissor-shaped fork rod 5 are respectively connected to the two semicircular rings; the second ends of the scissor-shaped fork rod 5 are respectively connected to the first ends of the two diagonal bars 4, the second ends of the two diagonal bars 4 are away from the scissor-shaped fork rod 5 and gradually approach each other, and the second ends of the two diagonal bars 4 are rotationally connected to the two ends of the cross bar 3; the tension structure is arranged in the connecting rod group, which is used to adjust the opening and closing spacing of the scissor-shaped fork rod 5; the middle part of the cross bar 3 is connected to the pull rod 1, which is used to transfer the tension exerted on the pull rod 1 to the cross bar 3. When the cross bar 3 is subjected to a pulling force in the direction away from the clamp 2, the first ends of the diagonal bars 4 will approach each other to enable the clamp 2 to clamp the drop roller. When the cross bar 3 receives a thrust in the direction toward the clamp 2, the first ends of the diagonal bars 4 will separate from each other to enable the clamp 2 to release the drop roller. It should be noted that the present invention does not impose any restrictions on the specific materials of the cross bar 3, the diagonal bar 4 and the scissor-shaped fork bar 5. Those skilled in the art can set them according to their needs. For example, the above-mentioned rod structure can be made of metal. For another example, the above-mentioned rod structure can also be made of plastic, as long as the strength of the connecting rod group can be guaranteed to be suitable for clamping work.
[0035] Of course, the utility model does not impose any restrictions on the specific structure of the connecting rod group. Those skilled in the art can set it according to their needs, as long as it can ensure that the connecting rod group can convert the pulling force into the clamping force of the clamp 2. The clamp 2 is composed of two semicircular rings, which can be quickly closed and opened, providing the working roller with the ability to quickly clamp and release. The interaction between the scissor-shaped fork rod 5 and the inclined rod 4 can convert the pulling force into the clamping force, ensuring that the clamp 2 can firmly clamp the drop roller during the dragging process and reduce the risk of slipping. The addition of the elastic structure allows the gripping device to adjust the clamping force according to different working conditions, ensuring stability and strong clamping, and effectively preventing the working roller from falling off or being damaged during the dragging process; and the combined structure of the cross bar 3, the pull rod 1 and the handle 9, as well as the design of the pentagonal connecting rod, is simple to operate, labor-saving, and easy to control, avoiding the problem of offset and jamming during the dragging process; the detachable bolt connection and the overall structural design simplify the maintenance and replacement of the device, reduce the difficulty of maintenance, and shorten the maintenance time.
[0036] In addition, it should be noted that the present invention does not impose any restrictions on the connection method of the cross bar 3, the diagonal bar 4 and the scissor-shaped fork bar 5. Those skilled in the art can set it according to their needs as long as the connecting rod group can move normally. In this preferred embodiment, the cross bar 3 and the diagonal bar 4, the diagonal bar 4 and the scissor-shaped fork bar 5, and the center of the scissor-shaped fork bar 5 are all hinged structures. The cross bar 3, the diagonal bar 4 and the scissor-shaped fork bar 5 adopt a hinged structure, which not only improves the flexibility of the structure, but also helps to disperse the load and reduce damage caused by stress concentration, thereby improving the reliability of the device.
[0037] Furthermore, the tensioning structure includes an elastic block 6 and a limiting rod 7, wherein: the connection between the pull rod 1 and the cross bar 3 is set as a screw structure, and is connected to the cross bar 3 by a thread; the pull rod 1 passes through the cross bar 3 and is connected to the elastic block 6; the elastic block 6 is located between the cross bar 3 and the scissor-like fork rod 5, and channels are formed on both sides of the elastic block 6, and a limiting rod 7 is slidably arranged in the channel. The limiting rod 7 is fixedly installed on the second end of the scissor-like fork rod 5, and the second end of the scissor-like fork rod 5 is pushed and pulled by the limiting rod 7 to clamp and separate the scissor-like fork rod 5. It should be noted that the utility model does not impose any restrictions on the specific structure of the tension block 6. Those skilled in the art can set it according to their needs. For example, the tension block 6 can be a cube structure. For another example, the tension block 6 can also be a spherical structure. As long as it can be ensured that the tension block 6 can control the opening and closing of the scissor-like fork rod 5 by stretching the limit rod 7, the design of the tension structure makes the opening and closing spacing of the scissor-like fork rod 5 adjustable to adapt to rollers of different diameters, thereby improving the versatility and practicality of the device; and the structure of the tension block 6 and the limit rod 7 allows the operator to control the opening and closing of the scissor-like fork rod 5 by pushing and pulling the limit rod 7. This design simplifies the operation process and improves work efficiency and convenience.
[0038] As a preferred embodiment, the channel is arranged in an inclined shape along the length direction of the limit rod 7, which is used to lift or loosen the limit rod 7 when the elastic block 6 moves. The channel is arranged in an inclined shape, so that when the elastic block 6 moves, the limit rod 7 will be lifted or moved down accordingly, which increases the flexibility of the mechanism and the fineness of the control of the scissor-shaped fork rod 5. A gap is formed between the elastic block 6 and the scissor-shaped fork rod 5. The gap formed between the elastic block 6 and the scissor-shaped fork rod 5 can prevent the elastic block 6 from blocking the normal displacement of the scissor-shaped fork rod 5 during operation. It should be noted that the utility model does not impose any restrictions on the specific mode of cooperation between the elastic block 6 and the limit rod 7, and those skilled in the art can set it according to their needs. For example, the elastic block 6 can directly drive the limit rod 7 to push and pull the scissor-shaped fork rod 5 in a rigid manner. For another example, the elastic block 6 can also drive the limit rod 7 to push and pull the scissor-shaped fork rod 5 in a movable connection. As long as it can be ensured that the elastic block 6 and the limit rod 7 can meet the needs of users to drive the scissor-shaped fork rod 5 to open and close.
[0039] Furthermore, a handle 9 is provided at one end of the pull rod 1 away from the pitch adjusting screw 8. The setting of the handle 9 makes it more convenient for the operator to control the tension, and enhances the comfort of the manual adjustment process and the accuracy of the operation. It should be noted that the present invention does not impose any restrictions on the structure of the handle 9, and those skilled in the art can set it according to their needs. For example, the handle 9 can be a T-shaped handle 9, and for another example, the handle 9 can also be a ball-shaped handle 9, as long as it can ensure that the handle 9 can be convenient for the user to use.
[0040] In addition, it should be noted that the present invention does not impose any restrictions on the connection method of the pitch screw 8, the pull rod 1 and the handle 9. Those skilled in the art can set it according to their needs, as long as the connection between the pitch screw 8, the pull rod 1 and the handle 9 is stable. In this preferred embodiment, the pitch screw 8, the pull rod 1 and the handle 9 are welded into one structure. The welded structure of the pitch screw 8, the pull rod 1 and the handle 9 enhances the overall structural strength and durability and reduces the possibility of cracks and looseness.
[0041] Furthermore, the output end is connected to the two semicircular rings by a clamping plate 10 to form a space for the semicircular rings to move in a circle. The design of the connection of the clamping plate 10 allows the clamp 2 to form a stable circular motion space with the semicircular rings, ensuring the smoothness and continuity of the clamping process. The clamping plate 10 is connected to the output end by a detachable bolt so that the clamp 2 can be replaced. The use of detachable bolts allows the clamp 2 to be easily replaced, adapting to different operating requirements or facilitating the maintenance and replacement of the clamp 2.
[0042] So far, the technical solution of the utility model has been described in conjunction with the optional implementation modes shown in the accompanying drawings, but it is easy for those skilled in the art to understand that the protection scope of the utility model is obviously not limited to these specific implementation modes. Without departing from the principle of the utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will fall within the protection scope of the utility model.
Claims
1. A rolling mill roll grabbing device, characterized in that: The grabbing device comprises a connecting rod group, an elastic structure, a gripper and a pull rod, wherein: The holding device is a ring structure composed of two semicircular rings, and the two semicircular rings are connected by a rotating structure, so that when the two semicircles are closed around the rotating structure, they form a ring structure for clamping the drop roller; The connecting rod group includes a cross rod, two oblique rods and a scissor-shaped fork rod composed of two connecting rods rotatably connected in the middle, the first ends of the scissor-shaped fork rods are respectively connected to the two semicircular rings; the second ends of the scissor-shaped fork rods are respectively connected to the first ends of the two oblique rods, the second ends of the two oblique rods are away from the scissor-shaped fork rods and gradually approach each other, and the second ends of the two oblique rods are rotatably connected to the two ends of the cross rod; The elastic structure is arranged in the connecting rod group and is used to adjust the opening and closing distance of the scissor-shaped fork rod; The middle part of the cross bar is connected to the pull rod, which is used to transfer the pulling force applied to the pull rod to the cross bar. When the cross bar is subjected to pulling force away from the clamp, the first ends of the inclined rods will approach each other so that the clamp can clamp the drop roller. When the cross bar receives a thrust toward the clamp, the first ends of the inclined rods will separate from each other so that the clamp can release the drop roller.
2. The gripping device according to claim 1, characterized in that: The elastic structure includes an elastic block and a limiting rod, wherein: The connection between the pull rod and the cross rod is arranged as a screw structure, and is connected to the cross rod by a thread; the pull rod passes through the cross rod and is connected to the elastic block; the elastic block is located between the cross rod and the scissor-like fork rod, and channels are formed on both sides of the elastic block, and the limit rod is slidably arranged in the channel, and the limit rod is fixedly mounted on the second end of the scissor-like fork rod, and the second end of the scissor-like fork rod is pushed and pulled by the limit rod to clamp and separate the scissor-like fork rod.
3. The gripping device according to claim 2, characterized in that: The channel is arranged in an inclined shape along the length direction of the limiting rod, and is used to lift or loosen the limiting rod when the tension block moves.
4. The gripping device according to claim 2, characterized in that: A gap is formed between the elastic block and the scissor-shaped fork rod.
5. The gripping device according to claim 2, characterized in that: A handle is arranged at one end of the pull rod away from the screw rod structure.
6. The gripping device according to claim 5, characterized in that: The screw structure, the pull rod and the handle are welded into an integrated structure.
7. The gripping device according to claim 4, characterized in that: The rotating structure is a shutter structure.
8. The gripping device according to claim 1, characterized in that: The first end of the scissor-shaped fork rod is connected to the two semicircular rings via a clamping plate, so as to form a space for the semicircular rings to move in a circular motion.
9. The gripping device according to claim 8, characterized in that: The clamping plate is connected to the first end of the scissor-shaped fork rod by a detachable bolt so that the holding device can be replaced.
10. The gripping device according to claim 1, characterized in that: The cross bar and the diagonal bar, the diagonal bar and the scissor-shaped fork bar, and the center of the scissor-shaped fork bar are all hinged structures.