Roll shaft positioning device of cold rolling mill

Abstract

The utility model discloses a cold rolling mill roll shaft positioning device which comprises a roll shaft and a fixing support movably arranged on the roll shaft in a penetrating mode. Mounting grooves are formed in the side walls of the two sides of the fixing support correspondingly, and hydraulic oil tanks are arranged in the two mounting grooves correspondingly. Concentrated storage boxes are fixedly mounted on two sides of the bottom of the fixed bracket; the two centralized storage boxes are respectively communicated with the hydraulic oil tank through main guide pipes; the two sides of the bottom of the fixing support are each fixedly provided with a multi-point jacking and pressing positioning assembly communicating with the centralized storage box. Oil in a hydraulic oil tank is conveyed into a centralized storage box and then evenly distributed to all hydraulic oil cylinders of the multi-point jacking and positioning assembly, the effect of positioning a middle roll shaft is achieved through jacking of arc-shaped anti-skid pieces at the tail ends of the hydraulic oil cylinders, a plurality of fixing points are arranged, pressure can be applied to the middle roll shaft at the same time, and the positioning effect is good. The pressure of all points is the same, it is guaranteed that the roll shaft does not deviate, use is easy, the structure is reasonable, the positioning effect is good, and the anti-deviation capacity is high.

Description

Technical Field

[0001] The utility model relates to the technical field of metallurgical equipment, in particular to a roller positioning device for a cold rolling mill. Background Art

[0002] In the cold rolling process of the steel industry, the position stability of the cold rolling work roll is crucial to ensure the processing accuracy and rolling yield. A Chinese utility model patent with application number CN202111589104.7 provides a cold rolling mill roller positioning device, which has reliable axial positioning and can effectively improve the processing yield. The hydraulic cylinder drives the sliding of the moving block and drives the positioning bar to extend from the lateral direction of the equipment. When the positioning bar is fed into the range of the bearing seat, the surface of the positioning bar supports the end face of the bearing seat, and the hydraulic cylinder action can be stopped. The fastening bolts are tightened to achieve the positioning of the bearing seat, thereby ensuring the axial positioning of the roller, preventing axial movement of the roller during operation, and improving the processing yield.

[0003] However, the positioning points of the positioning device proposed in the above-mentioned comparative document are not comprehensive enough, and it is difficult to ensure uniform force when applying the positioning force. The roller shaft may still be offset. The positioning points of the traditional positioning device are not comprehensive enough, and it is difficult to ensure uniform force when applying the positioning force. The roller shaft may still be offset. The purpose is to provide a cold rolling mill roller positioning device in order to solve the above-mentioned problems. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a cold rolling mill roller positioning device, which solves the problems that the positioning points of the positioning device are not comprehensive, it is difficult to ensure uniform force when applying the positioning force, and the roller may still be offset. The traditional positioning device has insufficient positioning points, it is difficult to ensure uniform force when applying the positioning force, and the roller may still be offset.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the utility model is implemented through the following technical solutions: a cold rolling mill roller positioning device, including a roller and a fixed bracket, the fixed bracket is movably arranged on the roller; installation grooves are respectively opened on the side walls of the fixed bracket, and hydraulic oil tanks are arranged in the two installation grooves; centralized storage boxes are fixedly installed on both sides of the bottom of the fixed bracket; the two centralized storage boxes are connected to the hydraulic oil tank through main pipes respectively; multi-point top pressure positioning components connected to the centralized storage boxes are respectively fixedly installed on both sides of the bottom of the fixed bracket.

[0008] Preferably, the multi-point top pressure positioning assembly includes three branch pipes and a hydraulic cylinder with the same structure; the three branch pipes are respectively connected to the three hydraulic cylinders; one end of the three branch pipes is connected to the centralized storage box; the hydraulic cylinder is fixed to the bottom of the fixed bracket by a fixing seat screw.

[0009] Preferably, the hydraulic cylinders are connected to the centralized storage box through the branch pipes, so that the oil pressure in the three hydraulic cylinders remains the same as the oil pressure in the centralized storage box, thereby ensuring that the telescopic strengths of the three hydraulic cylinders are the same and the positioning of the middle roller is ensured.

[0010] Preferably, an extrusion plate is fixedly provided on the telescopic end of the hydraulic cylinder; an arc-shaped anti-skid sheet is provided at one end of the extrusion plate; the telescopic ends of the three hydraulic cylinders are all facing the axis of the roller shaft, so that the extrusion plate acts on the arc-shaped anti-skid sheet, and the arc-shaped anti-skid sheet is then concentratedly pressed against the center of the roller shaft to achieve positioning.

[0011] Preferably, the roller shaft of the cold rolling mill is movably arranged in a fixed bracket; and a sufficient amount of hydraulic oil is filled in the hydraulic oil tank.

[0012] Preferably, the hydraulic oil tank is provided with an oil filling port for injecting hydraulic oil and replacing the hydraulic oil after being used for a period of time.

[0013] Preferably, the main conduit is connected to a circulating oil pump, and the flow direction of the hydraulic oil is controlled by the circulating oil pump, thereby controlling the telescopic positioning effect of the multi-point top pressure positioning assembly.

[0014] (III) Beneficial effects

[0015] The utility model provides a cold rolling mill roller positioning device, which has the following beneficial effects:

[0016] The oil in the hydraulic oil tank is transported to a centralized storage box and then evenly distributed to each hydraulic cylinder of the multi-point top-pressure positioning assembly. The arc-shaped anti-slip sheet at the end of the hydraulic oil cylinder is used to press the middle roller. It has multiple fixed points and can apply pressure to the middle roller at the same time. The pressure at each point is the same, ensuring that the roller will not deviate. It is simple to use, has a reasonable structure, good positioning effect, strong anti-drift ability, and high practical value. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the positioning device from a top view;

[0018] Figure 2 This is a schematic diagram of the structure of the positioning device from an upward angle;

[0019] Figure 3 This is a schematic diagram of the structure of the multi-point top pressure positioning component in the positioning device;

[0020] Figure 4 This is a schematic diagram of the structure of the hydraulic oil tank and the multi-point top pressure positioning assembly in the positioning device;

[0021] In the figure: 1. roller; 2. fixed bracket; 3. hydraulic oil tank; 301. oil filling port; 4. centralized storage box; 5. main pipe; 6. multi-point top pressure positioning assembly; 601. branch pipe; 602. fixed seat; 603. hydraulic cylinder; 604. extrusion plate; 605. arc-shaped anti-slip sheet. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0023] See also Figure 1-4 The utility model provides a technical solution: a cold rolling mill roller positioning device,

[0024] See also Figure 1 and Figure 2 , including a roller shaft 1 and a fixed bracket 2, the fixed bracket 2 is movably arranged on the roller shaft 1; installation grooves are respectively opened on the side walls of the fixed bracket 2, and hydraulic oil tanks 3 are arranged in the two installation grooves; centralized storage boxes 4 are fixedly installed on both sides of the bottom of the fixed bracket 2; the two centralized storage boxes 4 are connected with the hydraulic oil tank 3 through main pipes 5 respectively; multi-point top pressure positioning components 6 connected with the centralized storage boxes 4 are fixedly installed on both sides of the bottom of the fixed bracket 2.

[0025] See also Figure 3 The multi-point top pressure positioning assembly 6 includes three branch pipes 601 and a hydraulic cylinder 603 with the same structure; the three branch pipes 601 are respectively connected to the three hydraulic cylinders 603; one end of the three branch pipes 601 is connected to the centralized storage box 4; the hydraulic cylinder 603 is fixed to the bottom of the fixed bracket 2 by screws of the fixing seat 602.

[0026] The hydraulic cylinder 603 is connected to the centralized storage box 4 through the branch pipe 601, so that the oil pressure in the three hydraulic cylinders 603 remains the same as the oil pressure in the centralized storage box 4, thereby ensuring that the telescopic strength of the three hydraulic cylinders 603 is the same, thereby ensuring the positioning of the intermediate roller 1.

[0027] An extrusion plate 604 is fixedly provided on the telescopic end of the hydraulic cylinder 603; an arc-shaped anti-skid sheet 605 is provided at one end of the extrusion plate 604; the telescopic ends of the three hydraulic cylinders 603 are all facing the axis of the roller shaft 1, so that the extrusion plate 604 acts on the arc-shaped anti-skid sheet 605, and the arc-shaped anti-skid sheet 605 then concentrates on pressing the center of the roller shaft 1 to achieve positioning.

[0028] The roller shaft 1 of the cold rolling mill is movably arranged in the fixed bracket 2; the hydraulic oil tank 3 is filled with sufficient hydraulic oil.

[0029] See also Figure 4 The hydraulic oil tank 3 is provided with an oil filling port 301 for injecting hydraulic oil and replacing the hydraulic oil after being used for a period of time.

[0030] See also Figure 4 The main conduit 5 is connected to the circulating oil pump, and the flow direction of the hydraulic oil is controlled by the circulating oil pump, thereby controlling the telescopic positioning effect of the multi-point top pressure positioning assembly 6.

[0031] Embodiment 1: During operation, the roller 1 of the cold rolling mill is inserted into the fixed bracket 2, and a sufficient amount of hydraulic oil is loaded into the hydraulic oil tank 3. During use, the oil in the hydraulic oil tank 3 is transported to the centralized storage box 4 and then evenly distributed to each hydraulic cylinder 603 of the multi-point top-pressing positioning assembly 6, and the arc-shaped anti-slip sheet 605 at the end of the hydraulic oil cylinder 603 is used to press and position the roller 1 in the middle;

[0032] The oil in the hydraulic oil tank 3 is transported to the centralized storage box 4 and then evenly distributed to each hydraulic cylinder 603 of the multi-point top-pressure positioning assembly 6. The arc-shaped anti-slip sheet 605 at the end of the hydraulic cylinder 603 is used to press and position the middle roller 1.

[0033] To summarize, the oil in the hydraulic oil tank is transported to a centralized storage box and then evenly distributed to each hydraulic cylinder of the multi-point top-pressure positioning assembly, and the arc-shaped anti-slip sheet at the end of the hydraulic oil cylinder is used to press the middle roller to achieve the positioning effect. It has multiple fixed points and can apply pressure to the middle roller at the same time. The pressure at each point is the same, ensuring that the roller will not deviate. It is simple to use, has a reasonable structure, good positioning effect, strong anti-drift ability, and high practical value.

[0034] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0035] 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 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 cold rolling mill roller positioning device, comprising a roller (1) and a fixed bracket (2), characterized in that: The fixed bracket (2) is movably mounted on the roller shaft (1); installation grooves are respectively provided on the side walls of both sides of the fixed bracket (2), and hydraulic oil tanks (3) are arranged in the two installation grooves; centralized storage boxes (4) are fixedly mounted on both sides of the bottom of the fixed bracket (2); the two centralized storage boxes (4) are connected to the hydraulic oil tank (3) through main pipes (5); and multi-point top pressure positioning components (6) connected to the centralized storage boxes (4) are fixedly mounted on both sides of the bottom of the fixed bracket (2).

2. A cold rolling mill roller positioning device according to claim 1, characterized in that: The multi-point top-pressure positioning assembly (6) comprises three branch pipes (601) of the same structure and a hydraulic cylinder (603); the three branch pipes (601) are respectively connected to the three hydraulic cylinders (603); one end of the three branch pipes (601) is connected to the centralized storage box (4); the hydraulic cylinder (603) is fixed to the bottom of the fixed bracket (2) by screws via a fixing seat (602).

3. A cold rolling mill roller positioning device according to claim 2, characterized in that: The hydraulic cylinders (603) are connected to the centralized storage box (4) through the branch pipe (601), so that the oil pressure in the three hydraulic cylinders (603) is kept the same as the oil pressure in the centralized storage box (4), thereby ensuring that the telescopic strengths of the three hydraulic cylinders (603) are the same, thereby ensuring the positioning of the intermediate roller (1).

4. A cold rolling mill roller positioning device according to claim 2, characterized in that: An extrusion plate (604) is fixedly provided on the telescopic end of the hydraulic cylinder (603); an arc-shaped anti-skid sheet (605) is provided at one end of the extrusion plate (604); the telescopic ends of the three hydraulic cylinders (603) are all oriented toward the axis of the roller shaft (1), so that the extrusion plate (604) acts on the arc-shaped anti-skid sheet (605), and the arc-shaped anti-skid sheet (605) then concentrates on pressing the center of the roller shaft (1) to achieve positioning.

5. The cold rolling mill roller positioning device according to claim 1, characterized in that: The roller shaft (1) of the cold rolling mill is movably inserted into the fixed bracket (2); and a sufficient amount of hydraulic oil is filled in the hydraulic oil tank (3).

6. A cold rolling mill roller positioning device according to claim 1, characterized in that: The hydraulic oil tank (3) is provided with an oil filling port (301) for injecting hydraulic oil and replacing the hydraulic oil after being used for a period of time.

7. A cold rolling mill roller positioning device according to claim 1, characterized in that: The main conduit (5) is connected to a circulating oil pump, and the flow direction of the hydraulic oil is controlled by the circulating oil pump, thereby controlling the telescopic positioning effect of the multi-point top pressure positioning assembly (6).

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