Rolling mill dismounting device

Abstract

The utility model discloses a rolling mill dismounting device which comprises a supporting plate, an abutting plate arranged on the supporting plate, a positioning assembly arranged opposite to the abutting plate and a jack arranged on the side of the positioning assembly, the abutting plate is vertically arranged, and the positioning assembly is used for tightly abutting equipment needing to be dismounted on the abutting plate. The telescopic direction of the jack is consistent with the jacking direction of the positioning assembly. Equipment needing to be dismounted is fixed through the positioning assembly and the abutting plate, then the pull rod is ejected out through the jack, the whole dismounting process is simple, rapid and labor-saving, accidents cannot happen, the dismounting efficiency of the pull rod on the rolling mill at present is effectively improved, labor is saved, safety is achieved, and the problem that dismounting of the pull rod of the rolling mill at present is strenuous and unsafe is solved.

Description

Technical Field

[0001] This utility model belongs to the field of auxiliary equipment for steel rolling equipment, and specifically relates to a rolling mill dismantling device. Background Technology

[0002] Currently, it is not easy to remove the tie rods when disassembling the rolling mill. They are usually smashed out with a sledgehammer. This disassembly method is laborious, unsafe, inefficient, and can easily injure people.

[0003] Publication document CN201810065460.0 discloses a precision-positioning circuit board cutting and clamping device, comprising: a base plate, a waste box, a sliding device, a processing plate, and a clamping mechanism. By setting the clamping mechanism on the processing plate, the circuit board can be easily clamped. The clamping mechanism is initially positioned by a sliding block, and then precisely positioned by a drive cylinder and a push plate. Installation and disassembly are simple, it can clamp circuit boards of different sizes, has a wide range of applications, and offers reliable clamping and high stability. The sliding waste box on the base plate allows for quick and convenient recycling of processed waste. This device has a simple structure, is easy to operate, highly reliable, has high positioning accuracy, and good processing efficiency, making it suitable for large-scale application.

[0004] Public document CN201810799491.9 discloses a clamping device comprising a base for supporting a transformer to be processed; a guide post, the first end of which is connected to the base, and the second end of which is vertically oriented; and a top cover having an assembly position mounted on the guide post and a disassembly position detached from the guide post. When the top cover is in the assembly position, a limiting space for clamping the transformer is formed between the top cover and the base. When the top cover is in the disassembly position, an entrance for placing the transformer is formed at the second end of the guide post. Using this clamping device to hold the transformer allows subsequent processing steps to be performed using this device. In other words, by using this clamping device to hold the transformer, automated assembly production of the transformer is achieved through operation of the clamping device, improving the production efficiency of the transformer.

[0005] While the two aforementioned public documents mention clamping components to facilitate processing or production, they are not applicable to the problems raised in this application and cannot disassemble the tie rods installed on the rolling mill. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a rolling mill disassembly device to solve the problem of laborious and unsafe disassembly of the upper tie rod of the rolling mill.

[0007] To solve the above problems, the present invention adopts the following technical solution:

[0008] The mill dismantling device includes a support plate, an abutment plate disposed on the upper part of the support plate, a positioning component disposed opposite to the abutment plate, and a jack disposed on the side of the positioning component. The abutment plate is vertically disposed, and the positioning component is used to press the equipment to be dismantled against the abutment plate. The extension and retraction direction of the jack is consistent with the pressing direction of the positioning component.

[0009] Furthermore, the positioning component has a baffle fixedly connected to the support plate on the side away from the abutment plate, and there are two jacks, with the rear ends of the two jacks located on the side of the baffle facing the abutment plate.

[0010] Furthermore, the positioning component includes two fixing nuts symmetrically arranged on the support plate, and two tightening bolts threaded onto the two fixing nuts respectively. The axes of the two tightening bolts are perpendicular to the side of the abutment plate near the baffle.

[0011] Furthermore, each of the two fixing nuts has a fixing block on one side of the support plate. The fixing block has a guide rail parallel to the fastening bolt. The guide rail is located on one side of the tightening bolt. A connecting block is slidably connected to the guide rail. A rack is slidably connected to the side of the connecting block near the tightening bolt. The sliding direction of the rack is perpendicular to the upper end of the support plate. A toothed ring is provided on the outer circumference of the nut of the tightening bolt. The rack is meshed with the toothed ring. Limiting plates are provided on both sides of the rack along its length. The two limiting plates are located on both sides of the nut.

[0012] Furthermore, the support plate is provided with two abutment seats, both of which are located on the side of the abutment plate away from the positioning component. The two abutment seats are respectively provided with two jacks, and each abutment seat is provided with a guide wheel.

[0013] Furthermore, springs are provided between the bottom ends of the two abutment seats and the support plate. A limiting groove corresponding to the abutment seat is fixedly connected to the support plate. The spring is vertically set in the limiting groove. The abutment seat is slidably connected to the limiting groove and its bottom end is located in the limiting groove. The bottom end of the abutment seat is fixedly connected to the upper end of the spring.

[0014] Furthermore, an abutment platform is provided between the two jacks and the two abutment seats, and a placement groove is provided on the abutment platform. At least two extension rods are provided on the support plate, and the extension rods are adapted to the placement groove.

[0015] The significant beneficial effects achieved by this utility model are as follows:

[0016] 1. This application uses positioning components and abutment plates to fix the equipment to be disassembled, and then uses jacks to push out the tie rod. The entire disassembly process is simple, fast, and labor-saving, and will not cause accidents. It effectively improves the disassembly efficiency of tie rods on rolling mills, saves labor and is safe, and solves the problem of laborious and unsafe disassembly of tie rods on rolling mills.

[0017] 2. The setting of the fixing block, guide rail, connecting block, rack and gear ring allows for convenient and quick adjustment of the tightening bolt, facilitating tightening and loosening.

[0018] 3. The design of the abutment seat, guide wheel, spring and limiting groove can avoid hard contact with the pull rod and can support the disassembled pull rod, preventing the pull rod from being unevenly weighed and worn during disassembly. Attached Figure Description

[0019] Appendix Figure 1 This is a schematic diagram of the main structure of the mill dismantling device according to Embodiment 1 of this utility model;

[0020] Appendix Figure 2 This is a top view of the mill dismantling device according to Embodiment 1 of this utility model;

[0021] Appendix Figure 3 This is a schematic diagram of the main structure of the mill dismantling device in Embodiment 2 of this utility model;

[0022] Appendix Figure 4 This is a top view of the mill dismantling device according to Embodiment 2 of this utility model;

[0023] Appendix Figure 5 This utility model Figure 4 Enlarged structural diagram at point A in the middle;

[0024] Appendix Figure 6 This is a schematic diagram of the main structure of Embodiment 3 of this utility model;

[0025] Appendix Figure 7 This is a top view of the structure of Embodiment 3 of this utility model;

[0026] Appendix Figure 8 This is a side view of the abutment platform structure in Embodiment 3 of this utility model.

[0027] In the attached diagram, 1. Support plate; 2. Abutment plate; 3. Jack; 4. Baffle; 5. Fixing nut; 6. Tightening bolt; 7. Fixing block; 8. Guide rail; 9. Connecting block; 10. Rack; 11. Gear ring; 12. Limiting plate; 13. Abutment seat; 14. Guide wheel; 15. Spring; 16. Limiting groove; 17. Abutment platform; 18. Placement groove; 19. Extension rod. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0029] Example 1

[0030] like Figure 1 and Figure 2 As shown, the mill dismantling device includes a support plate 1, an abutment plate 2 vertically fixed on the upper end of the support plate 1, a positioning component disposed opposite to the vertical side of the abutment plate 2, and a jack 3 installed on the side of the fixing component. The positioning component is used to press the equipment to be dismantled against the abutment plate 2, and the extension and retraction direction of the jack 3 is consistent with the pressing direction of the positioning component.

[0031] In this embodiment, a baffle 4 is fixedly connected to the support plate 1 on the side of the positioning component away from the abutment plate 2. There are two jacks 3. The rear ends of the two jacks 3 are installed on the side of the baffle 4 facing the abutment plate 2. The two jacks 3 are located on both sides of the positioning component.

[0032] The positioning assembly includes two fixing nuts 5 symmetrically fixed on the support plate 1, and two tightening bolts 6 threadedly connected to the two fixing nuts 5 respectively. The axes of the two tightening bolts 6 are perpendicular to the side of the abutment plate 2 near the baffle 4.

[0033] In this embodiment, the telescopic ends of the two jacks 3 extend and retract toward the abutment plate 2, and the extension lines of the two jacks 3 in the length direction are located on both sides of the abutment plate 2.

[0034] Working principle: When it is necessary to disassemble the rolling mill tie rod, the equipment to be disassembled is first placed between the positioning component and the abutment plate 2 by the hoisting equipment. The equipment is then tightened against the side of the abutment plate 2 by tightening the two top bolts 6. Then, the telescopic end of the jack 3 is used to push the end of the tie rod to be disassembled on the equipment. The jack 3 works to push the tie rod out, thus completing the disassembly of the tie rod.

[0035] In summary, this application uses positioning components and abutment plates 2 to fix the equipment to be disassembled, and then uses jacks 3 to push out the tie rod. The entire disassembly process is simple, fast, and labor-saving, and will not cause accidents. It effectively improves the disassembly efficiency of tie rods on rolling mills, saves labor and is safe, and solves the problem of laborious and unsafe disassembly of tie rods on rolling mills.

[0036] Example 2

[0037] like Figure 3 , Figure 4 and Figure 5 As shown, the structure of this embodiment is roughly the same as that of embodiment 1. The difference between this embodiment and embodiment 1 is that in this embodiment, a fixing block 7 is fixedly connected to the support plate 1 on one side of each of the two fixing nuts 5. A guide rail 8 parallel to the tightening bolt 6 is fixedly connected to the side of the fixing block 7 facing the baffle 4. The guide rail 8 is located below one side of the tightening bolt 6. A connecting block 9 is slidably connected to the guide rail 8. A rack 10 is slidably connected to the side of the connecting block 9 near the tightening bolt 6. The sliding direction of the rack 10 is perpendicular to the upper end of the support plate 1. A groove is opened along the length direction of the rack 10 near the connecting block 9. The connecting block 9 is slidably connected in the groove.

[0038] A toothed ring 11 is fixedly connected to the outer circumferential surface of the nut of the tightening bolt 6. The rack 10 is meshed with the toothed ring 11. Limiting plates 12 higher than the tooth surface are provided on both sides of the rack 10 in the length direction. The two limiting plates 12 are located on both sides of the nut of the tightening bolt 6.

[0039] By moving the rack 10 up or down, the tightening bolt 6 can be rotated within the fixing nut 5, thereby moving closer to or away from the abutment plate 2. Due to the action of the limiting plate 12, the connecting block 9, and the guide rail 8, the rack 10 will move along with the nut on the tightening bolt 6 during the lifting and lowering process.

[0040] In summary, when fixing equipment that requires disassembly of the tie rod, the top bolt 6 can be rotated by moving the two racks 10 upwards or downwards respectively, without the need for slow tightening with tools such as wrenches, which further facilitates the work of the staff and improves the disassembly efficiency.

[0041] Example 3

[0042] like Figure 6 , Figure 7 and Figure 8 As shown, the structure of this embodiment is roughly the same as that of embodiment 2. This embodiment is further optimized based on embodiment 2. During the disassembly of the tie rod, the tie rod will gradually leave the rolling mill. As the distance of the tie rod away increases, under the action of gravity, the end of the tie rod away from the jack 3 will sink, causing the tie rod to rub against the inner wall of the rolling mill. This makes disassembly inconvenient and causes wear. Therefore, in this embodiment, two abutment seats 13 are installed on the upper end of the support plate 1. The two abutment seats 13 are respectively installed for the two jacks 3. The abutment seats 13 are installed in the length direction of the jacks 3. Both abutment seats 13 are located on the side of the abutment plate 2 away from the positioning component. Rotatable guide wheels 14 are installed on the upper end of both abutment seats 13. The outer circumferential surface of the guide wheels 14 is provided with an annular groove.

[0043] Springs 15 are installed between the bottom ends of the two abutment seats 13 and the support plate 1. The upper end of the support plate 1 is provided with a limiting groove 16 corresponding to the abutment seat 13. The spring 15 is vertically located in the limiting groove 16. The bottom end of the spring 15 abuts against the bottom end of the limiting groove 16. The abutment seat 13 is slidably connected to the limiting groove 16 and its bottom end is located in the limiting groove 16. The bottom end of the abutment seat 13 is fixedly connected to the upper end of the spring 15.

[0044] The guide wheel 14 and the abutment seat 13 are designed to support the pulled rod as it moves out of the mill, preventing it from becoming uneven after it leaves the mill. The guide wheel 14 can rotate as the pulled rod moves, without obstructing its movement.

[0045] The spring 15 and the limiting groove 16 are designed to give the abutment seat 13 a certain amount of room to move, so as to avoid hard contact when the pull rod is placed on the guide wheel 14 (the pull rod will protrude part of the equipment before disassembly, and the pull rod will be located on the guide wheel 14 before disassembly, so that the guide wheel 14 can receive the pull rod during disassembly).

[0046] Because the pull rod is long, the jack 3 needs to be long-stroke to meet the requirements, but this directly leads to an increase in the floor space occupied by the support plate 1, and makes the installation of the jack 3 more complicated and costly. Therefore, in this embodiment, an abutment platform 17 is installed between the two jacks 3 and the two abutment seats 13. The abutment platform 17 has a placement groove 18, the bottom of which is lower than the bottom of the pull rod. At least one extension rod 19 is placed on the support plate 1. The extension rod 19 is adapted to the placement groove 18. The extension rod 19 is placed through the placement groove 18. During the disassembly of the pull rod, the pull rod is disassembled by placing different numbers of extension rods 19 on the abutment platform 17 between the jack 3 and the pull rod, thereby reducing the floor space occupied by the support plate 1 and reducing the procurement cost of the jack 3.

Claims

1. A rolling mill dismantling device, characterized in that: The device includes a support plate (1), an abutment plate (2) disposed on the upper end of the support plate (1), a positioning component disposed opposite to the abutment plate (2), and a jack (3) disposed on the side of the positioning component. The abutment plate (2) is vertically disposed. The positioning component is used to press the device to be disassembled against the abutment plate (2). The extension and retraction direction of the jack (3) is consistent with the pressing direction of the positioning component. A baffle (4) is fixedly connected to the support plate (1) on the side of the positioning component away from the abutment plate (2). There are two jacks (3). The rear ends of the two jacks (3) are disposed on the side of the baffle (4) facing the abutment plate (2).

2. The rolling mill dismantling device according to claim 1, characterized in that: The positioning component includes two fixing nuts (5) symmetrically arranged on the support plate (1), and two tightening bolts (6) threadedly connected to the two fixing nuts (5). The axes of the two tightening bolts (6) are perpendicular to the side of the abutment plate (2) near the baffle (4).

3. The rolling mill dismantling device according to claim 2, characterized in that: One side of each of the two fixing nuts (5) is provided with a fixing block (7) located on the support plate (1). The fixing block (7) is provided with a guide rail (8) parallel to the tightening bolt (6). The guide rail (8) is located on one side of the tightening bolt (6). A connecting block (9) is slidably connected to the guide rail (8). A rack (10) is slidably connected to the side of the connecting block (9) near the tightening bolt (6). The sliding direction of the rack (10) is perpendicular to the upper end of the support plate (1). A toothed ring (11) is provided on the outer circumferential surface of the nut of the tightening bolt (6). The rack (10) is meshed with the toothed ring (11). Limiting plates (12) are provided on both sides of the rack (10) in the length direction. The two limiting plates (12) are located on both sides of the nut.

4. The rolling mill dismantling device according to claim 1, characterized in that: The support plate (1) is provided with two abutment seats (13). Both abutment seats (13) are located on the side of the abutment plate (2) away from the positioning component. The two abutment seats (13) are respectively provided for the two jacks (3). Both abutment seats (13) are provided with guide wheels (14).

5. The rolling mill dismantling device according to claim 4, characterized in that: A spring (15) is provided between the bottom ends of the two abutment seats (13) and the support plate (1). The upper end of the support plate (1) is provided with a limiting groove (16) corresponding to the abutment seat (13). The spring (15) is vertically arranged in the limiting groove (16). The abutment seat (13) is slidably connected to the limiting groove (16) and its bottom end is located in the limiting groove (16). The bottom end of the abutment seat (13) is fixedly connected to the upper end of the spring (15).

6. The rolling mill dismantling device according to claim 5, characterized in that: An abutment platform (17) is provided between the two jacks (3) and the two abutment seats (13). A placement groove (18) is provided on the abutment platform (17). At least two extension rods (19) are provided on the support plate (1). The extension rods (19) are adapted to the placement groove (18).

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