Disassembling tool for finishing work roll roller

Abstract

The utility model relates to work roll roller dismantling technical field, concretely refers to finishing work roll roller dismantling frock, including base, the base is the step ring that opened two straight grooves, is used for supporting the outer ring of roller and does not interfere with the inner ring, still include the gasket that inserts the straight groove on the base upper surface, and the support sleeve that is placed in the gasket top, the gasket and support sleeve are used for holding the half ring, the half ring is one left and right, is placed in the support sleeve and the height is flush with the circular arc inner groove, still include the pressure head for extruding two half rings makes it cooperate with the circular arc inner groove, the inner ring of roller and half ring form the whole after having the stress condition, the gasket and support sleeve can remove after the pressure head sleeve enters the half ring, the knocking pressure head can make the inner ring of roller separate from the roller, the utility model solves the problem that the existing roller wheel body inner ring dismantling is more difficult.

Description

Technical Field

[0001] This utility model relates to the field of work roll disassembly technology, specifically to a tooling for disassembling finish rolling work rolls. Background Technology

[0002] The finishing mill rolls in steel rolling are transported by rails and roll-changing trolleys. Rollers are installed on the bearing housings of the finishing mill rolls, and the rollers bear the entire weight of the two rolls and the bearing housings. The roller consists of a roller shaft, retaining ring, roller, rolling elements, inner ring, sealing ring, and positioning cover, and is assembled into a whole using four bolts, with a structure similar to a single bearing.

[0003] Rollers are consumable parts and generally need to be disassembled for maintenance after a certain period of use, replacing the rolling elements and seals. Once the roller body is removed, disassembly is quite difficult.

[0004] The main difficulty in disassembling the roller body lies in removing the inner ring, for the following reasons:

[0005] 1. The grease in the rolling element 4 has high viscosity. If there is a lack of grease, the resistance caused by rust will be even greater.

[0006] 2. Sealing ring 5 has significant frictional resistance;

[0007] 3. The inner ring 2 and the retaining ring 3 fit tightly with the outer ring 1;

[0008] 4. The inner ring 2 and the retaining ring 3 are tightly connected without any gaps;

[0009] 5. Due to the obstruction of the rolling element 4, it can only be disassembled outwards, but there is nowhere to exert force. Utility Model Content

[0010] The technical problem this invention aims to solve is the difficulty in removing the inner ring of existing roller bodies.

[0011] To solve the above problems, the technical solution adopted by this utility model is a finishing mill work roll disassembly fixture, including a base, an upper straight groove that mates with a pad, a lower straight groove that facilitates the removal of a support sleeve, and an upper stepped hole that mates with the outer ring of the roller. The through hole is larger than the maximum diameter of the inner ring to avoid interference. The base is a stepped ring with two straight grooves to support the outer ring of the roller without interfering with the inner ring. It also includes a pad embedded in the upper straight groove of the base, the width of which matches the upper straight groove of the base, a waist-shaped handle for easy removal, and a support sleeve placed above the pad, which only supports half of the ring. The function is simple and effective. The pad and support sleeve are used to support the half ring. The half ring fits into the inner arc groove of the inner ring. The hole fits into the pressing step of the pressure head. The 8mm gap and 75mm width are machined to avoid interference with the hole wall when it is fitted into the inner ring. There is one half ring on each side, placed on the support sleeve and the height is flush with the inner arc groove. It also includes a pressure head for pressing the two half rings to fit into the inner arc groove. After the inner ring of the roller and the half ring are formed as a whole, they have the conditions to bear force. After the pressure head is fitted into the half ring, the pad and support sleeve can be removed. Tapping the pressure head can make the inner ring of the roller detach from the roller.

[0012] As a further aspect of this utility model, the straight groove design of the base is used to precisely embed the pad, ensuring the positional stability of the pad on the base, thereby providing a stable foundation support for the support sleeve and subsequent components.

[0013] As a further embodiment of this utility model: the shape and size of the support sleeve are adapted to the pad and the half ring, which can stably lift the half ring to a height flush with the inner groove of the arc, ensuring the accurate position of the half ring during the extrusion process.

[0014] As a further embodiment of this utility model: the shape and size of the pressure head are designed to smoothly fit into the two half-rings, and during the extrusion process, the half-rings are tightly fitted with the inner groove of the arc, so as to realize that the inner ring of the roller and the half-rings form an integral force.

[0015] As a further embodiment of this utility model: the pad and support sleeve can be easily removed after the pressure head is fitted into the half ring, without affecting the subsequent operation of striking the pressure head to disengage the inner ring of the roller from the roller, and the removal process will not interfere with the already fitted half ring and the inner ring of the roller.

[0016] Compared with existing technologies, the advantages of this utility model are as follows: This finishing mill work roll disassembly fixture addresses the difficulty of removing the inner ring of existing rollers by incorporating a specialized structure. The base is a stepped ring with two straight grooves, which can precisely support the outer ring of the roller without interfering with the inner ring. The straight grooves ensure the stability of the pad plate, providing a stable foundation for subsequent components. The pad plate is embedded in the straight grooves on the base and features a waist-shaped handle for easy removal. The shape and size of the support sleeve are adapted to the pad plate and half-ring, stably supporting the half-ring to a height flush with the inner arc groove. Ensure accurate extrusion positioning; the half-ring and the inner ring's arc groove are designed with specific dimensions to avoid interference. After being placed on the left and right, they are pressed by the pressure head and tightly fitted with the arc groove, making the inner ring of the roller and the half-ring form a whole under force; the shape and size design of the pressure head can smoothly fit into the two half-rings to achieve a tight fit; and the pad and support sleeve can be easily removed after the pressure head is fitted into the half-ring, without affecting the subsequent operation of knocking the inner ring of the roller off the roller and without interfering with the already fitted parts, effectively solving the problem of difficult removal of the inner ring. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0018] Figure 1 This is a three-dimensional view of the overall structure of the finishing mill work roll disassembly fixture of this utility model.

[0019] Figure 2 This is a cross-sectional view of the tank structure in the disassembly tooling for the precision rolling mill rollers of this utility model.

[0020] In the attached image:

[0021] 1. Base; 2. Pad; 3. Support sleeve; 4. Half ring; 5. Inner ring of roller; 6. Pressure head; 7. Arc inner groove. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides a technical solution to address the existing problems mentioned in the background art.

[0024] Combined with appendix Figure 1-2It can be seen that the base includes a base 1, with a 95mm straight groove on the upper part of the base 1 that mates with the pad 2, a 110mm straight groove on the lower part of the base 1 that facilitates the removal of the support sleeve 3, a 192mm stepped hole on the upper part of the base 1 that mates with the outer ring of the roller, and a 150mm through hole that is larger than the maximum diameter of the inner ring to avoid interference. The base 1 is a stepped ring with two straight grooves, which is used to support the outer ring of the roller without interfering with the inner ring. The straight groove design of the base 1 is used to accurately embed the pad 2, ensuring the positional stability of the pad 2 on the base 1, thereby providing a stable foundation support for the support sleeve 3 and subsequent components.

[0025] It also includes a pad 2 embedded in the straight groove on the base 1. The width of the pad 2 matches the straight groove on the base 1. It is designed with a waist-shaped handle for easy removal. It also includes a support sleeve 3 placed on the pad 2. The shape and size of the support sleeve 3 are adapted to the pad 2 and the half ring 4. It can stably lift the half ring 4 to the height of the inner arc groove 7, ensuring the accurate position of the half ring 4 during the extrusion process. The support sleeve 3 only serves to support the half ring 4. It is simple and effective. The pad 2 and the support sleeve 3 are used to support the half ring 4. The half ring 4 SR5mm matches the inner arc groove 7 of the inner ring. The diameter 57 hole matches the extrusion step of the pressure head 6. The 8mm gap and 75mm width are machined to avoid interference with the hole wall when it is fitted into the inner ring. There is one half ring 4 on each side, placed on the support sleeve 3 and the height is flush with the inner arc groove 7.

[0026] It also includes a pressure head 6 for pressing the two half-rings 4 to fit into the inner arc groove 7. The shape and size of the pressure head 6 are designed to smoothly fit into the two half-rings 4 and to make the half-rings 4 fit tightly into the inner arc groove 7 during the pressing process, so that the inner ring 5 of the roller and the half-rings 4 form a whole for bearing force. After the inner ring 5 of the roller and the half-rings 4 form a whole, they have the conditions for bearing force. After the pressure head 6 is fitted into the half-rings 4, the pad 2 and the support sleeve 3 can be removed. Tapping the pressure head 6 can make the inner ring 5 of the roller disengage from the roller. The pad 2 and the support sleeve 3 can be smoothly removed after the pressure head 6 is fitted into the half-rings 4 without affecting the subsequent operation of tapping the pressure head 6 to make the inner ring 5 of the roller disengage from the roller, and the removal process will not interfere with the already fitted half-rings 4 and the inner ring 5 of the roller.

[0027] The working principle of this application is as follows: When disassembling the finishing mill work roll, the base 1 is first placed stably on a suitable operating platform to ensure its stability and provide a stable foundation for subsequent operations. Then, the pad 2 is accurately embedded into the upper straight groove of the base 1. Since the 95mm upper straight groove of the base 1 matches the width of the pad 2, and the pad 2 is designed with a waist-shaped handle, the embedding operation can be completed conveniently and quickly. Next, a support sleeve 3 is placed above the pad 2. The shape and size of the support sleeve 3 are adapted to the pad 2 and the subsequent half-ring, ensuring stable placement. Then, the roller is fitted, so that the inner ring of the roller mates with the support sleeve 3, and the outer ring mates with the 192mm upper stepped hole of the base 1. Simultaneously, the 150mm through hole of the base 1 is larger than the maximum diameter of the inner ring, avoiding interference. Then, a half-ring 5 is installed on each of the left and right sides of the support sleeve 3, with the SR5 of the half-ring 5... The inner ring 5 is fitted with the inner arc groove 7, and its 57mm diameter hole fits with the pressing head 6 pressing step. It has an 8mm gap and a 75mm width to avoid interference with the hole wall when it is fitted into the inner ring. When placed, the height of half ring 5 is flush with the arc groove 7. Then the pressing head 6 is inserted. The shape and size design of the pressing head 6 can smoothly fit the two half rings 4, and during the pressing process, the half rings 4 fit tightly with the arc groove 7, so that the inner ring 5 of the roller and the half rings 4 form a whole force state. After the pressing fit is completed, the pad 2 is pulled out by the waist-shaped handle of the pad 2. At this time, the support sleeve 3 falls off due to the loss of support and can be taken out from the lower straight groove 110mm of the base 1. Finally, the pressing head 6 is struck, and the force transmitted by the whole force makes the inner ring 5 of the roller separate from the roller. At this time, the disassembly of the roller is completed, and subsequent maintenance and repair procedures can be performed.

[0028] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A fixture for disassembling finishing mill work rolls, characterized in that: The system includes a base (1), which is a stepped ring with two straight grooves to support the outer ring of the roller without interfering with the inner ring; it also includes a pad (2) embedded in the straight groove on the base (1) and a support sleeve (3) placed on the pad (2). The pad (2) and the support sleeve (3) are used to support the half rings (4). There are two half rings (4), one on each side, placed on the support sleeve (3) and at the same height as the inner arc groove (7); it also includes a pressure head (6) for pressing the two half rings (4) to fit with the inner arc groove (7). After the inner ring (5) of the roller and the half ring (4) are integrated, they are capable of bearing force. After the pressure head (6) is put into the half ring (4), the pad (2) and the support sleeve (3) can be removed. Striking the pressure head (6) can cause the inner ring (5) of the roller to disengage from the roller.

2. The finishing mill work roll disassembly fixture according to claim 1, characterized in that: The straight groove design of the base (1) is used to precisely embed the pad (2), ensuring the positional stability of the pad (2) on the base (1), thereby providing a stable foundation support for the support sleeve (3) and subsequent components.

3. The finishing mill work roll disassembly fixture according to claim 1, characterized in that: The shape and size of the support sleeve (3) are adapted to the pad (2) and the half ring (4), which can stably lift the half ring (4) to a height that is flush with the inner groove (7) of the arc, ensuring that the half ring (4) is accurately positioned during the extrusion process.

4. The finishing mill work roll disassembly fixture according to claim 1, characterized in that: The shape and size of the pressure head (6) are designed to fit smoothly into the two half-rings (4) and to make the half-rings (4) fit tightly with the inner groove (7) of the arc during the extrusion process, so as to realize that the inner ring (5) of the roller and the half-rings (4) form an integral force.

5. The finishing mill work roll disassembly fixture according to claim 1, characterized in that: The pad (2) and support sleeve (3) can be easily removed after the pressure head (6) is fitted into the half ring (4), without affecting the subsequent operation of striking the pressure head (6) to make the inner ring (5) of the roller disengage from the roller, and the removal process will not interfere with the already fitted half ring (4) and inner ring (5) of the roller.

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