Winding auxiliary device for cleaning roller way of rolling mill

Abstract

The utility model discloses an auxiliary device for cleaning and winding a rolling mill roller way, which relates to the technical field of aluminum alloy metal hot rolling production and comprises a guide device mounted at the bottom of a gantry support and above the roller way, the guide device comprises a fixing frame, and a transverse limiting device and a longitudinal limiting device are arranged on the fixing frame; the transverse limiting device comprises two first guide wheels, and the steel wire rope penetrates through the position between the two first guide wheels in a limited mode. The longitudinal limiting device comprises two second guide wheels, and the steel wire rope penetrates through the position between the two second guide wheels in a limited mode. A gap between the two first guide wheels is located above the guide face of the second guide wheel and is not larger than the guide face of the second guide wheel. By arranging the guide device, the steel wire rope is transversely and longitudinally limited, the steel wire rope is limited in the guide device, the steel wire rope is prevented from shaking back and forth and being separated from the guide device in the traction process, stable and reliable traction is guaranteed, and the roller cleaning efficiency is prevented from being influenced.

Description

Technical Field

[0001] The utility model relates to the technical field of aluminum alloy hot rolling production, in particular to a cleaning winch auxiliary device for a rolling mill roller table. Background Art

[0002] In the hot rolling process of aluminum processing, the rolling mill roller table is one of the key conditions for rolling. Since the roller table is in direct contact with the aluminum slab, aluminum is likely to adhere to its surface, and it needs to be cleaned regularly before production rolling to avoid affecting product quality.

[0003] Currently, the roller table of a rolling mill is generally cleaned by a roll cleaner, and the roll cleaner is towed along the roller table by a winch to achieve the cleaning of the roller table. However, no guiding device is provided between the existing roll cleaner and the winch, so the steel wire rope is prone to abrasion with the gantry support during operation. At the same time, due to the influence of the width of the winch drum, the steel wire rope will swing back and forth during towing. The back-and-forth swing causes the traction force of the roll cleaner to deviate, resulting in a collision between the roll cleaner and the side wall of the roller table, thus causing damage or jamming of the roll cleaner and affecting the cleaning efficiency.

[0004] Chinese Patent CN 1887667 B discloses an automatic roll cleaner. By installing at least one fixed pulley at the positions corresponding to the winch steel wire rope on the upper and lower parts of the gantry support, the direction change of the steel wire rope is achieved. Although this installation method of the fixed pulley solves the abrasion between the steel wire rope and the gantry support, the steel wire rope swings back and forth during towing and is extremely easy to get out of the fixed pulley, resulting in the failure of the guiding function of the fixed pulley for the steel wire rope and affecting the cleaning efficiency. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a cleaning winch auxiliary device for a rolling mill roller table. By setting a guiding device, the steel wire rope is horizontally and vertically limited, and the steel wire rope is limited within the guiding device, so as to avoid the back-and-forth swing of the steel wire rope during towing and getting out of the guiding device, thus ensuring stable and reliable traction and avoiding affecting the cleaning efficiency.

[0006] To achieve the above object, the utility model provides an auxiliary device for cleaning and hoisting a rolling mill roller table, which includes a guiding device installed at the bottom of a gantry bracket and above the roller table. The guiding device includes a fixing frame fixed at the bottom of the gantry bracket, and a transverse limiting device and a longitudinal limiting device for restricting the movement of a steel wire rope are arranged up and down on the fixing frame; the transverse limiting device includes two first guiding wheels rotatably installed side by side horizontally on the fixing frame, the axial direction of the rotating shaft of the first guiding wheel is the same as the traction direction of the roll cleaner, and the steel wire rope is limited to pass through between the two first guiding wheels; the longitudinal limiting device includes two second guiding wheels rotatably installed side by side horizontally on the fixing frame, the axial direction of the rotating shaft of the second guiding wheel is perpendicular to the traction direction of the roll cleaner, and the steel wire rope is limited to pass through between the two second guiding wheels; the gap between the two first guiding wheels is located above the guiding surface of the second guiding wheel and is not larger than the guiding surface of the second guiding wheel.

[0007] After adopting the above structure, the two first guiding wheels are used to transversely limit the steel wire rope. When the steel wire rope is wound or unwound, even if the steel wire rope swings back and forth, the two first guiding wheels will guide it, ensuring that the steel wire rope is always located above the guiding surface of the second guiding wheel, avoiding getting out of the guiding of the second guiding wheel and causing traction failure; in addition, by arranging two second guiding wheels rotating side by side, the two second guiding wheels clamp the steel wire rope, thereby ensuring the position of the steel wire rope again, avoiding getting out of the second guiding wheel, and ensuring the stable and reliable traction.

[0008] In order to further limit the steel wire rope, a groove for the steel wire rope to pass through is arranged on the guiding surface of the second guiding wheel.

[0009] In order to ensure that the steel wire rope can be fixed when not in use and avoid interference caused by the sagging of the steel wire rope, a hook for hanging the end of the steel wire rope is also arranged on the gantry bracket.

[0010] In order to avoid the steel wire rope on the drum from being disorderly wound and deformed when hoisting, a wire rope pressing device is fixedly installed on one side of the hoist.

[0011] In order to achieve the tensioning and buffering effects of the guiding device, the second guiding wheel is elastically and slidably installed on the fixing frame, and the elastic direction is the same as the traction direction of the roll cleaner.

[0012] In order to achieve the stable sliding and reset of the guiding device, a sliding groove is opened on the fixing frame, a sliding block is installed in the sliding groove in a limited sliding manner, a compression spring is arranged between the sliding block and the sliding groove, and the second guiding wheels are arranged side by side on the sliding block.

[0013] After adopting the above technical solution, the beneficial effects of the utility model are:

[0014] The utility model relates to an auxiliary device for cleaning and hoisting a rolling mill roller table, which solves the technical problem in the prior art that when a wire rope is used to tow a roll cleaner, the wire rope is likely to slip out of the guiding device, resulting in the failure of towing and affecting the roll cleaning efficiency. By arranging the guiding device, the utility model laterally and longitudinally limits the wire rope, confines the wire rope within the guiding device, avoids the wire rope from swaying back and forth during towing and slipping out of the guiding device, thus ensuring stable and reliable towing and preventing the influence on the roll cleaning efficiency. Brief Description of the Drawings

[0015] Figure 1 Fig. is a schematic structural diagram of an auxiliary device for cleaning and hoisting a rolling mill roller table according to the utility model;

[0016] Figure 2 is Figure 1 a partial enlarged view of A in

[0017] Figure 3 is Figure 1 a partial enlarged view of B in

[0018] Figure 4 Fig. is a schematic structural diagram of the guiding device in Embodiment 2.

[0019] In the figures, 1 is a gantry support, 2 is a guiding device, 21 is a fixing frame, 211 is a sliding groove, 212 is a sliding block, 213 is a compression spring, 22 is a first guiding wheel, 23 is a second guiding wheel, 231 is a groove, 3 is a winch, 31 is a wire rope pressing device, 4 is a wire rope, and 5 is a hook. Detailed Description of the Embodiment

[0020] The present utility model will be further described below with reference to the accompanying drawings.

[0021] All orientations mentioned in this specification are based on the orientation when the auxiliary device for cleaning and hoisting a rolling mill roller table of the present utility model is working properly, without limiting its orientation during storage and transportation, only representing the relative positional relationship and not the absolute positional relationship.

[0022] Embodiment 1:

[0023] As Figure 1 , Figure 2 and Figure 3 collectively show, an auxiliary device for cleaning and hoisting a rolling mill roller table includes a guiding device 2 installed at the bottom of the gantry support 1 above the roller table. The winch 3 is fixedly installed above the gantry support 1, and the wire rope 4 of the winch 3 is lowered from the gantry support 1 and then passes through the guiding device 2 and is connected to the roll cleaner.

[0024] The guiding device 2 includes a fixing frame 21 fixed to the bottom of the gantry support 1, and a lateral limiting device and a longitudinal limiting device for restricting the movement of the wire rope 4 are arranged up and down on the fixing frame 21.

[0025] The lateral limiting device includes two first guide wheels 22 rotatably mounted side by side horizontally on the fixing frame 21. The axial direction of the rotating shaft of the first guide wheel 22 is the same as the traction direction of the roller cleaning device. The steel wire rope 4 is limited to pass through between the two first guide wheels 22, and the two first guide wheels 22 form a limiting clamp on the steel wire rope 4; the longitudinal limiting device includes two second guide wheels 23 rotatably mounted side by side horizontally on the fixing frame 21. The axial direction of the rotating shaft of the second guide wheel 23 is perpendicular to the traction direction of the roller cleaning device. The steel wire rope 4 is limited to pass through between the two second guide wheels 23. The gap between the two first guide wheels 22 is located above the guiding surface of the second guide wheel 23 and is not greater than the guiding surface of the second guide wheel 23. Thus, when the steel wire rope 4 first passes through the two first guide wheels 22, the two first guide wheels 22 form a lateral limit on the steel wire rope 4, ensuring that the steel wire rope 4 only sways between the guiding surfaces of the second guide wheels 23, thereby preventing the steel wire rope 4 from slipping out of the second guide wheels 23, and the two second guide wheels 23 rotating side by side form a clamp on the steel wire rope 4, thereby preventing the steel wire rope 4 from slipping out of the second guide wheels 23.

[0026] Furthermore, in order to ensure the guiding effect of the two second guide wheels 23, a groove 231 for the steel wire rope 4 to pass through is provided on the guiding surface of the second guide wheel 23, and the steel wire rope 4 moves within the groove 231.

[0027] When the roller cleaning is not carried out, the steel wire rope 4 is not fixedly connected to the roller cleaning device. In order to prevent the steel wire rope 4 from sagging and causing interference in the operation of the rolling mill, a hook 5 for hooking the end of the steel wire rope 4 is further provided on the gantry bracket 1.

[0028] In order to ensure that the steel wire rope is not disordered during the winding process of the winch, resulting in unstable traction force during subsequent wire release, a wire pressing device 31 is fixedly installed on one side of the winch 3. There are various structures of the wire pressing device 31 in the prior art, such as a wire pressing device for a winch and a winch disclosed in Chinese Patent CN115724362A, or structures disclosed in other patents. Therefore, it will not be elaborated in this embodiment.

[0029] The working principle of this embodiment:

[0030] The steel wire rope 4 is released from the winch 3, then passes through between the two first guide wheels 22 and between the two second guide wheels 23 in sequence and is fixed to the roller cleaning device; the two first guide wheels 22 form a lateral limit on the steel wire rope 4, preventing the steel wire rope 4 from slipping out of the guiding surface of the second guide wheels 23; the two second guide wheels 23 form a longitudinal limit on the steel wire rope 4, preventing the steel wire rope 4 from swaying.

[0031] Embodiment Two:

[0032] Such as Figure 4As shown in the figure, in order to increase the buffering effect during the traction of the wire rope 4 and avoid forced traction and damage to the roller cleaner caused by different resistances, this embodiment is further improved on the basis of Embodiment 1.

[0033] The second guide wheel 23 is elastically and slidably mounted on the fixed frame 21, and the elastic direction is the same as the traction direction of the roller cleaner. On both sides of the fixed frame 21, sliding grooves 211 are oppositely formed. A slider 212 is mounted in the sliding groove 211 in a limited sliding manner, and the length direction of the sliding groove 211 is consistent with the traction direction of the pipe cleaner; a compression spring 213 is arranged between the slider 212 and the sliding groove 211, and the second guide wheels 23 are rotatably mounted side by side on the slider 212. The compression spring 213 is located at the front end of the slider 212 and the sliding groove 211, that is, the end far from the hoist 3.

[0034] During the traction process, when the roller cleaner is in operation and the resistance suddenly increases at some positions, the wire rope 4 drives the second guide wheel 23 to slide forward, thereby forming a certain buffering and tensioning effect, thus reducing the excessive instantaneous traction force and causing damage to the pipe cleaner.

[0035] A kind of auxiliary device for cleaning and hoisting of a rolling mill roller table in the present utility model solves the technical problem in the prior art that when a wire rope traction roller cleaner, the wire rope is easily disengaged from the guiding device, resulting in traction failure and affecting the cleaning efficiency of the roller cleaner. The present utility model provides a guiding device to perform lateral and longitudinal limiting on the wire rope, limit the wire rope within the guiding device, avoid the wire rope from swinging back and forth during the traction process and disengaging from the guiding device, thereby ensuring stable and reliable traction and avoiding affecting the cleaning efficiency of the roller cleaner.

[0036] Certainly, the above description is not a limitation to the present utility model, and the present utility model is not limited to the above examples. Changes, modifications, additions or substitutions made by those skilled in the art within the substantial scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A rolling mill roller cleaning hoisting auxiliary device, characterized in that: It includes a guide device installed at the bottom of the gantry support and above the roller, the guide device includes a fixed frame fixed at the bottom of the gantry support, and the fixed frame is provided with a transverse limit device and a longitudinal limit device for limiting the movement of the wire rope; The lateral limiting device comprises two first guide wheels horizontally and rotatably mounted side by side on the fixed frame, the axial direction of the rotating shaft of the first guide wheel is the same as the traction direction of the roller cleaner, and the steel wire rope is limited to pass through between the two first guide wheels; The longitudinal limiting device comprises two second guide wheels horizontally and rotatably mounted side by side on the fixing frame, the axial direction of the rotating shaft of the second guide wheel is perpendicular to the traction direction of the roller cleaner, and the steel wire rope is limited to pass between the two second guide wheels; The gap between the two first guide wheels is located above the guide surface of the second guide wheel and is not larger than the guide surface of the second guide wheel.

2. A rolling mill roller cleaning hoisting auxiliary device according to claim 1, characterized in that: The guide surface of the second guide wheel is provided with a groove for the steel wire rope to pass through.

3. The rolling mill roller cleaning hoisting auxiliary device according to claim 1, characterized in that: The gantry bracket is also provided with a hook for hooking the end of the steel wire rope.

4. The rolling mill roller cleaning hoisting auxiliary device according to claim 1, characterized in that: A rope press is fixedly installed on one side of the winch.

5. The rolling mill roller cleaning hoisting auxiliary device according to claim 1, characterized in that: The second guide wheel is elastically slidably mounted on the fixing frame, and the elastic direction is the same as the traction direction of the roller cleaner.

6. A rolling mill roller cleaning hoisting auxiliary device according to claim 5, characterized in that: The fixing frame is provided with a slide groove, a slider is installed in the slide groove for limited sliding, a compression spring is provided between the slider and the slide groove, and the second guide wheel is installed side by side on the slider.

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