A short stress mill roll dismounting auxiliary device

Abstract

This utility model relates to the field of rolling mill roll technology, and in particular to an auxiliary device for disassembling short-stress rolling mill rolls. It includes a V-shaped plate and station plates vertically connected to its opposite bottom sides, forming a gate-shaped structure. Each of the opposite bottom sides of the V-shaped plate is vertically connected to a first pull plate, with each side of the first pull plate connected to one of the station plates. A vertical second pull plate is also connected to the bottom surface of the V-shaped plate, with its bottom surface flush with the bottom surface of the station plates to contact the ground. The bottom surface of the first pull plate is higher than that of the second pull plate. This utility model, by providing a V-shaped plate with a preset angle, and with the stable connection between the station plates and the first pull plates, can stably support short-stress rolling mill rolls of different diameters, stably supporting the rolls to maintain a large gap with the ground, thus assisting in the disassembly of the rolling mill roll bushings and labyrinth.

Description

Technical Field

[0001] This utility model relates to the field of rolling mill roll technology, and in particular to an auxiliary device for disassembling short-stress rolling mill rolls. Background Technology

[0002] Short-stress rolling mill rolls cannot be reused after reaching their minimum diameter and must be scrapped. However, the bushings and labyrinths on the rolls can be reused. It is necessary to remove the bushings and labyrinths from the scrapped rolls. Since the bushings, labyrinths, and rolls are heat-fitted, an electromagnetic induction heater is required for heating during disassembly. When the rolls are placed on the ground, the gap between the rolls and the ground is too small, making it impossible to install the heating coil of the electromagnetic induction heater on the bushings and labyrinths to heat them. Furthermore, the rolls may roll and cause a safety accident. Based on this, this application proposes an auxiliary device for disassembling short-stress rolling mill rolls. Utility Model Content

[0003] To solve the above technical problems, this utility model provides an auxiliary device for disassembling short-stress rolling mill rolls. By providing a V-shaped plate with a preset angle, and in conjunction with the stable connection between the station plate and the first pull plate, it can stably support short-stress rolling mill rolls of different diameters, and assist in the disassembly of the rolling mill roll bushings and labyrinth.

[0004] The short-stress rolling mill roll dismantling auxiliary device in this solution includes a V-shaped plate and station plates vertically connected to the bottom of its opposite sides, forming a gate-shaped structure. The bottom of the V-shaped plate is vertically connected to a first pull plate on each of its opposite sides. The two sides of the first pull plate are connected to two station plates respectively. The bottom surface of the V-shaped plate is also connected to a vertical second pull plate. The bottom surface of the second pull plate is flush with the bottom surface of the station plate to contact the ground, and the bottom surface of the first pull plate is higher than the bottom surface of the second pull plate.

[0005] Furthermore, the second pull plate is connected to the middle of the bottom surface of the V-shaped plate.

[0006] Furthermore, the bottom of the outer wall of the station plate is also horizontally connected to an outwardly extending base plate.

[0007] Furthermore, a reinforcing rib connects the station plate and the base plate.

[0008] Furthermore, the cross-section of the stiffening plate is triangular, and the two right-angled sides of the stiffening plate are connected to the station plate and the bottom plate, respectively.

[0009] Furthermore, the included angle of the V-shaped plate is 140°.

[0010] Furthermore, the V-shaped plate is 20mm thick.

[0011] The beneficial effects of this utility model are as follows: The short-stress rolling mill roll disassembly auxiliary device provided by this utility model, by providing a V-shaped plate with a preset angle, and in conjunction with the stable connection of the station plate and the first pull plate, can stably support short-stress rolling mill rolls of different diameters, stably support the short-stress rolling mill rolls so that there is a large gap between them and the ground, and assist in the disassembly of the rolling mill roll bushing and labyrinth. It solves the problem that when the rolls are placed on the ground, the electromagnetic induction heater heating coil cannot be fitted onto the bushing and labyrinth because the gap between the rolls and the ground is too small. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of the auxiliary device for disassembling short-stress rolling mill rolls in a specific embodiment of this utility model;

[0013] Figure 2 This is a front view of the auxiliary device for disassembling short-stress rolling mill rolls in a specific embodiment of this utility model;

[0014] Among them: 10, V-shaped plate; 20, standing plate; 30, first tension plate; 40, second tension plate; 50, bottom plate; 60, stiffening plate. Detailed Implementation

[0015] like Figure 1 As shown in the schematic diagram of the auxiliary device for dismantling rolls of a short-stress rolling mill provided in this embodiment, it includes a V-shaped plate 10 and station plates 20 that are vertically connected to the bottom of its opposite two wings (left and right sides), forming a gate-shaped structure. The V-shaped plate 10 is specifically made of a 20mm thick steel plate with an included angle of 140°. At the same time, the bottom of the other opposite two sides (front and rear sides) of the V-shaped plate 10 are vertically connected to a first pull plate 30. The two sides of the first pull plate 30 are respectively connected to two station plates 20. The bottom surface of the V-shaped plate 10 is also connected to a vertical second pull plate 40. The second pull plate 40 is connected to the middle of the bottom surface of the V-shaped plate 10. The bottom surface of the second pull plate 40 is flush with the bottom surface of the station plate 20 to contact the ground, and the bottom surface of the first pull plate 30 is higher than the bottom surface of the second pull plate 40. The load of the entire device is mainly transferred to the ground by the second pull plate 40 and the two station plates 20.

[0016] In this embodiment, the bottom of the outer wall of the two station plates 20 is also horizontally connected to an outwardly extending base plate 50 to improve the stability of the device. At the same time, a stiffening plate 60 is connected between the station plate 20 and the base plate 50. The cross section of the stiffening plate 60 is triangular, and the two right-angled sides of the stiffening plate 60 are connected to the station plate 20 and the base plate 50 respectively, thereby strengthening the connection between the station plate 20 and the base plate 50.

[0017] like Figure 2As shown, when using this device, the short-stress rolling mill rolls (rolls of different diameters are shown in the figure) can be placed on the V-shaped plate 10. This device can stably support the short-stress rolling mill rolls, thereby further cooperating with the electromagnetic induction heater to disassemble the bushings and labyrinths of the short-stress rolling mill rolls.

[0018] Specifically, in this embodiment, station plates 20 are welded to both sides of the V-shaped plate 10 to bear the weight of the roll. The V-shaped plate 10 and the station plates 20 on both sides are connected by a first pull plate 30 at both ends to form an integral structure to improve stability and increase the overall strength of the auxiliary device. A second pull plate 40 is added in the middle. In order to increase the stability of the auxiliary device in contact with the ground, a base plate 50 is welded to both sides of the station plate 20. The base plate 50 is 200mm wide and 760mm long. Two triangular stiffeners 60 are welded between the station plate 20 and the base plate 50. The distance between the stiffeners 60 is 400mm.

[0019] After the auxiliary device is manufactured, it is placed in the work area and fixed to the ground using stops or anchor bolts. A crane is used to place the mill rolls whose bushings and labyrinths need to be removed onto the auxiliary device. The electromagnetic induction heater is used to remove the bushings and labyrinths from the roll neck. This device solves the problem that when the rolls are placed on the ground, the electromagnetic induction heater heating coil cannot be fitted onto the bushings and labyrinths because the gap between the rolls and the ground is too small. It also improves the work efficiency of the operators and reduces their labor intensity. Furthermore, it eliminates the safety hazard of the rolls rolling during the removal of bushings and labyrinths.

[0020] In addition to the above embodiments, this utility model may have other implementation methods; all technical solutions formed by equivalent substitution or equivalent transformation fall within the protection scope claimed by this utility model.

Claims

1. An auxiliary device for dismantling rolls in a short-stress rolling mill, characterized in that, The structure includes a V-shaped plate (10) and two vertically connected station plates (20) at their respective bottom sides, forming a gate-shaped structure. The bottom sides of the V-shaped plate (10) are also vertically connected to a first pull plate (30). The two sides of the first pull plate (30) are connected to two station plates (20) respectively. The bottom surface of the V-shaped plate (10) is also connected to a vertical second pull plate (40). The bottom surface of the second pull plate (40) is flush with the bottom surface of the station plate (20) to contact the ground. The bottom surface of the first pull plate (30) is higher than the bottom surface of the second pull plate (40).

2. The auxiliary device for dismantling rolls in a short-stress rolling mill according to claim 1, characterized in that, The second pull plate (40) is connected to the middle of the bottom surface of the V-shaped plate (10).

3. The auxiliary device for dismantling rolls in a short-stress rolling mill according to claim 1, characterized in that, The bottom of the outer wall of the station plate (20) is also horizontally connected to an outwardly extending base plate (50).

4. The auxiliary device for dismantling rolls in a short-stress rolling mill according to claim 3, characterized in that, A stiffening plate (60) connects the station plate (20) and the base plate (50).

5. The auxiliary device for dismantling rolls in a short-stress rolling mill according to claim 4, characterized in that, The cross section of the stiffening plate (60) is triangular, and the two right-angled sides of the stiffening plate (60) are connected to the station plate (20) and the bottom plate (50) respectively.

6. The auxiliary device for dismantling rolls in a short-stress rolling mill according to claim 1, characterized in that, The included angle of the V-shaped plate (10) is 140°.

7. The auxiliary device for dismantling rolls in a short-stress rolling mill according to claim 1, characterized in that, The V-shaped plate (10) is 20 mm thick.

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