Replacing tool for hydraulic cylinder of bending roller of rolling mill

Abstract

The utility model relates to a rolling mill bending roller hydraulic cylinder replacing tool which comprises a hanging beam and a support, the hanging beam comprises a cross beam, two ends of the cross beam are connected with a supporting frame, the outer side of the supporting frame is provided with an inner right-angle supporting face, the supporting frame is provided with a plurality of puller bolts, and the cross beam is connected with a single-rail hand-pulled trolley. The monorail hand-pulled running car is connected with a chain block, the support comprises a base and an upper seat, a supporting rod is connected between the base and the upper seat, and a placing round hole is formed in the upper seat. The device solves the problems that the replacement space of the roll bending hydraulic cylinder is small, inclined pulling and pulling exist in the replacement process, time and labor are wasted, and large safety risks exist, and the replacement time of the roll bending hydraulic cylinder of the finishing mill is shortened.

Description

Technical Field

[0001] The utility model relates to the maintenance of a bending roller hydraulic cylinder of a finishing rolling mill, in particular to a replacement tool for the bending roller hydraulic cylinder of a rolling mill. Background Art

[0002] The bending roll hydraulic cylinder of the hot rolling 1580 line leaked. The overall replacement of the bending roll block requires a lot of disassembly and assembly, and the replacement time is long. In order to shorten the operation time, the study was conducted to replace the bending roll hydraulic cylinder separately. However, the replacement space of the bending roll hydraulic cylinder is small and disassembly and assembly is also difficult.

[0003] The existing patent CN204747073U discloses a strip mill AGC hydraulic cylinder replacement and transportation device, including a moving device, a synchronous hydraulic lifting device and a hydraulic cylinder anti-tilt device, the synchronous hydraulic lifting device includes a synchronous hydraulic jack arranged on the moving device, the hydraulic cylinder anti-tilt device includes a hydraulic cylinder placement platform with a through hole in the middle, a telescopic rotary locking adjustment rod and a hydraulic cylinder top fixed steel ring, the hydraulic cylinder top fixed steel ring is provided with a plurality of locking bolts, the top and bottom ends of the telescopic rotary locking adjustment rod are respectively movably connected with the hydraulic cylinder top fixed steel ring and the hydraulic cylinder placement platform, and the bottom of the hydraulic cylinder placement platform is connected with the top of the synchronous hydraulic jack. The device is suitable for hydraulic cylinders disassembled from below, but not suitable for replacement of bending roll hydraulic cylinders disassembled and installed from above. Summary of the invention

[0004] The technical problem to be solved by the utility model is to provide a rolling mill bending hydraulic cylinder replacement tool to solve the problem that the bending hydraulic cylinder replacement space is narrow and the replacement is difficult without hoisting.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A rolling mill bending roller hydraulic cylinder replacement tool comprises two parts, a hanging beam and a bracket, the hanging beam comprises a cross beam, both ends of the cross beam are connected to a support frame, the outer side of the support frame is provided with an inner right-angle support surface, the support frame is provided with a plurality of tightening bolts, the cross beam is connected to a monorail hand-pulled carriage, the monorail hand-pulled carriage is connected to a hand-pulled winch, the bracket comprises a base and an upper seat, a support rod is connected between the base and the upper seat, and a circular hole is provided on the upper seat.

[0007] The two ends of the top of the crossbeam are connected with hanging rings.

[0008] The crossbeam is made of I-beam.

[0009] The support frame and the crossbeam are arranged vertically.

[0010] The distance between the inner right-angle support surfaces on both sides of the support frame is consistent with the distance between the balance beams of the rolling mill support rollers.

[0011] The supporting frame is made of angle steel.

[0012] The base and the upper seat are both square plates, and the area of ​​the base is larger than that of the upper seat.

[0013] The placement circular hole is 40-70 mm larger than the outer diameter of the bending roller hydraulic cylinder.

[0014] Compared with the existing technology, the beneficial effects of the utility model are:

[0015] The utility model uses the balance beam of the rolling mill support roller to install the lifting beam, provides a special lifting device for lifting the bending roller hydraulic cylinder, and solves the problem of difficult lifting of the bending roller. The support device of the bending roller hydraulic cylinder is provided by the bracket, so that the hydraulic cylinder can be placed on the support roller, and the bending hydraulic cylinder can be taken out of the rolling mill frame by pushing the lower support roller, so as to realize the smooth replacement of the bending roller hydraulic cylinder.

[0016] The utility model solves the problems that the replacement space of the bending roller hydraulic cylinder is small, the replacement process is skewed and pulled, it is time-consuming and labor-intensive, and there is a great safety risk, and shortens the replacement time of the bending roller hydraulic cylinder of the finishing rolling mill. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 This is a structural diagram of the hanging beam.

[0019] Figure 3 This is a top view of the hanging beam.

[0020] Figure 4 A schematic diagram of the structure of the bracket.

[0021] Figure 5 A top view of the bracket.

[0022] In the figure: a hanging beam 1, a bracket 2, a cross beam 11, a support frame 12, an inner right-angle support surface 13, a monorail hand-pulled carriage 14, a lifting ring 15, a hand-pulled hoist 16, a tightening bolt 17, a base 21, an upper seat 22, a support rod 23, and a placement circular hole 24. DETAILED DESCRIPTION

[0023] In the description of the present invention, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means more than two.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0025] like Figure 1-Figure 5 A rolling mill bending roller hydraulic cylinder replacement tool includes a hanging beam 1 and a bracket 2. The hanging beam 1 includes a crossbeam 11. Both ends of the crossbeam 11 are connected to a support frame 12. The outer side of the support frame 12 is provided with an inner right-angle support surface 13. The support frame 12 is provided with a plurality of tightening bolts 17. The crossbeam 11 is connected to a monorail hand-pulled carriage 14. The monorail hand-pulled carriage 14 is connected to a hand-pulled winch 16. The bracket 2 includes a base 21 and an upper seat 22. A support rod 23 is connected between the base 21 and the upper seat 22. The upper seat 22 is provided with a placement circular hole 24.

[0026] Both ends of the top of the crossbeam 11 are connected to hanging rings 15 .

[0027] The crossbeam 11 is made of I-beam.

[0028] The support frame 12 and the crossbeam 11 are arranged vertically.

[0029] The distance between the right-angle support surfaces 13 on both sides of the support frame 12 is consistent with the distance between the balance beams of the rolling mill support rollers.

[0030] The support frame 12 is made of angle steel.

[0031] The base 21 and the upper base 22 are both square plates, and the base 21 has a larger area than the upper base 22 .

[0032] The placement circular hole 24 is 40-70 mm larger than the outer diameter of the bending roller hydraulic cylinder.

[0033] How to use the rolling mill bending roll hydraulic cylinder replacement tool:

[0034] First, pull the upper support roller out of the frame, place the hanging beam 1 on the support roller balance beam, and the inner right-angle support surface 13 of the support frame 12 is against the support roller balance beam. After adjusting the position, tighten the tightening bolts 17 to fix the hanging beam 1, and place the bracket 2 on the lower support roller bearing seat; use the hand chain hoist 16 to lift the bending roller hydraulic cylinder out of the hydraulic cylinder seat in the vertical direction, operate the monorail hand-pulled carriage 14 to move the bending roller hydraulic cylinder to the middle of the frame, place the bending roller hydraulic cylinder on the bracket 2, pull out the support roller, use the lower support roller to pull the bending roller hydraulic cylinder and the bracket 2 out of the frame together, lift the old bending roller hydraulic cylinder away, and drop the new bending roller hydraulic cylinder on the bracket 2, use the lower support roller to send the bending roller hydraulic cylinder into the frame, and then use the hand chain hoist 16 to lift the bending roller hydraulic cylinder to the specified height, operate the monorail hand-pulled carriage 14 to move the bending roller hydraulic cylinder to just above the hydraulic cylinder seat, and install the bending roller hydraulic cylinder into the hydraulic cylinder seat to complete the replacement work.

[0035] By utilizing the utility model, the original replacement time of the bending roller hydraulic cylinder is shortened from 12 hours to 8 hours, and the number of workers is reduced from 8 to 4, which not only reduces the labor intensity and eliminates the potential safety hazard, but also improves the installation accuracy of the bending roller hydraulic cylinder.

[0036] In order to make the purpose, technical scheme and technical effect of the utility model clearer, the technical scheme in the embodiment of the utility model is now described clearly and completely. However, the embodiment described below is only a part of the embodiment of the utility model, not all of the embodiments. In combination with the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Example

[0038] A rolling mill bending roller hydraulic cylinder replacement tool comprises a hanging beam 1 and a bracket 2. The hanging beam 1 comprises a crossbeam 11, and the crossbeam 11 is made of I-beam. A 0.5t I-beam monorail hand-pulled carriage 14 is connected to the crossbeam 11, and a hand-pulled winch 16 is connected to the monorail hand-pulled carriage 14. Both ends of the top of the crossbeam 11 are connected to a lifting ring 15. Both ends of the crossbeam 11 are connected to a support frame 12, and the support frame 12 and the crossbeam 11 are arranged vertically. The support frame 12 is made of 80*80mm, 200mm long angle steel. The distance between the right-angle support surfaces 13 on both sides of the support frame 12 is consistent with the distance between the balance beams of the rolling mill support rollers. Two tightening bolts 17 are provided on the support frame 12, and the tightening bolts 17 are consistent with the direction of the crossbeam.

[0039] The bracket 2 includes a base 21 and an upper seat 22. A support rod 23 is connected between the base 21 and the upper seat 22. A placement circular hole 24 is provided on the upper seat 22. Both the base 21 and the upper seat 22 are square plates, and the base 21 is larger than the upper seat 22. The bracket 2 is in the shape of a frustum as a whole. The placement circular hole 24 is 50 mm larger than the outer diameter of the bending roller hydraulic cylinder.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and basic spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rolling mill bending roll hydraulic cylinder replacement tool, characterized in that: The utility model comprises two parts, a suspension beam and a bracket. The suspension beam comprises a cross beam. Both ends of the cross beam are connected to a support frame. An inner right-angle support surface is arranged on the outer side of the support frame. A plurality of tightening bolts are arranged on the support frame. The cross beam is connected to a monorail hand-pulled carriage. The monorail hand-pulled carriage is connected to a hand-pulled hoist. The bracket comprises a base and an upper seat. A support rod is connected between the base and the upper seat. A circular hole is arranged on the upper seat.

2. A rolling mill bending roll hydraulic cylinder replacement tool according to claim 1, characterized in that: The two ends of the top of the crossbeam are connected with lifting rings.

3. A rolling mill bending roll hydraulic cylinder replacement tool according to claim 1, characterized in that: The crossbeam is made of I-beam.

4. A rolling mill bending roll hydraulic cylinder replacement tool according to claim 1, characterized in that: The support frame and the crossbeam are arranged vertically.

5. A rolling mill bending roll hydraulic cylinder replacement tool according to claim 1, characterized in that: The distance between the inner right-angle support surfaces on both sides of the support frame is consistent with the distance between the balance beams of the rolling mill support rollers.

6. A rolling mill bending roll hydraulic cylinder replacement tool according to claim 1, characterized in that: The supporting frame is made of angle steel.

7. A rolling mill bending roll hydraulic cylinder replacement tool according to claim 1, characterized in that: The base and the upper seat are both square plates, and the area of ​​the base is larger than that of the upper seat.

8. A rolling mill bending roll hydraulic cylinder replacement tool according to claim 1, characterized in that: The placement circular hole is 40-70 mm larger than the outer diameter of the bending roller hydraulic cylinder.

Images