Main motor coupling coaxiality detection device and detection method for hot mill

Abstract

The invention discloses a main motor coupling coaxiality detection device and method for a hot mill, and the device comprises two symmetrical horizontal frames, one end of each horizontal frame is provided with an arc-shaped hoop which can form a circular ring, an annular part is slidably disposed on each horizontal frame, and the annular part comprises two arc-shaped plates. A sliding groove is formed in the inner circumferential side of the arc-shaped plate, a sliding block is arranged in the sliding groove in a sliding mode, an elastic column is installed on the sliding block, and a pressure sensor is arranged at the end, away from the sliding block, of the elastic column. The device is simple in structure, low in skill and experience requirements for operators, capable of directly judging the offset direction and the offset device of the passive end of the coupler according to values detected by the pressure sensors at different positions, high in detection precision, capable of adjusting the passive end of the coupler in real time according to the detected values, easy to operate and convenient to use.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shaft coupling coaxiality detection equipment, in particular to a main motor shaft coupling coaxiality detection device and method for a hot rolling mill. BACKGROUND

[0002] Shaft coupling coaxiality detection, usually more accurately referred to as shaft coupling alignment or shaft alignment, is a critical task in the installation and maintenance of mechanical equipment. Its core goal is to ensure that the center lines of the two rotating shafts connected by the shaft coupling are as close to the same straight line as possible during equipment operation. In actual installation and operation, due to reasons such as foundation settlement, thermal expansion, vibration, installation error, etc., the center lines of the two shafts are difficult to absolutely coincide, and there must be a deviation, so it is necessary to measure the size and direction of the deviation and adjust it to within the range allowed by the equipment manufacturer or international / industry standards (such as ISO, API, etc.).

[0003] In the operation of a hot rolling mill, in order to improve the stability of the equipment operation, it is also necessary to detect the coaxiality of the main motor shaft coupling, thereby reducing abnormal vibration and improving the service life of the bearings and shaft couplings. The existing detection method is the dial gauge (dial indicator) method, which is tedious and time-consuming to operate, requires high skills and experience of the operator, and is not convenient to use. The feeler gauge / ruler method can only be used for alignment work during initial installation, and the detection accuracy is low.

[0004] Therefore, the present application provides a main motor shaft coupling coaxiality detection device and method for a hot rolling mill to solve the above problems. SUMMARY

[0005] The technical problem to be solved by the present application is to overcome the existing defects and provide a main motor shaft coupling coaxiality detection device and method for a hot rolling mill, which has a simple structure, requires low skills and experience of the operator, and can directly determine the offset direction and offset device of the driven end of the shaft coupling through the values detected by the pressure sensors at different positions, has high detection accuracy, can adjust the driven end of the shaft coupling in real time according to the detection values, is simple to operate and convenient to use, and can effectively solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the present application provides the following technical solution: a main motor shaft coupling coaxiality detection device for a hot rolling mill, comprising two symmetrically arranged horizontal frames, one end of each horizontal frame is provided with an arc-shaped clamp capable of forming a circular ring, an annular member is slidingly installed on each horizontal frame, the annular member comprises two arc-shaped plates, a sliding groove is formed in the inner circumferential side of each arc-shaped plate, a sliding block is slidingly arranged in the sliding groove, an elastic column is installed on the sliding block, and a pressure sensor is arranged at the end of the elastic column away from the sliding block.

[0007] As a preferred technical scheme of the present application, an arc-shaped sliding slot is formed on the outer circumferential side of the arc-shaped clamp, and an arc-shaped rod is slidably arranged in the arc-shaped sliding slot.

[0008] As a preferred technical scheme of the present application, a clamping plate is arranged at the position corresponding to the horizontal frame of the arc-shaped plate, and the arc-shaped plate is slidably arranged on the horizontal frame through the clamping plate.

[0009] As a preferred technical scheme of the present application, the end of one arc-shaped plate is provided with a clamping slot, and the end of the other arc-shaped plate is provided with a clamping plate which is movably clamped in the clamping slot.

[0010] As a preferred technical scheme of the present application, three uniformly distributed screw holes are formed on the sliding block, a resilient column is threadedly connected in the middle screw hole, and locking bolts are threadedly connected in the two side screw holes.

[0011] A detection method of a main motor shaft coupling coaxiality detection device for a hot rolling mill, comprising the following steps: S1, an arc-shaped clamp is arranged at the driving end of the shaft coupling so as to tightly adhere to the driving end of the shaft coupling, and then the horizontal frame is kept horizontal; S2, the arc-shaped plate with the sliding block is clamped at the driven end side of the shaft coupling, the clamping plate is inserted into the clamping slot, the clamping plate is clamped on the horizontal frame, the corresponding scales on the horizontal frame and the arc-shaped plate are marked, and the arc-shaped plate is moved to a position close to the arc-shaped clamp; S3, the sliding block is rotated along the sliding slot, the sliding block drives the pressure sensor to rotate through the resilient column, and the rotation is stopped at a certain angle and the pressure value of the pressure sensor at the corresponding position is recorded; S4, then the arc-shaped plate is moved away from the arc-shaped clamp, and S is repeated, and the pressure values of the pressure sensor at different angles of the driven end of the shaft coupling are recorded; S5, whether the driving end and the driven end of the shaft coupling are parallel is judged according to the values of the pressure sensor at different positions and angles of the driven end of the shaft coupling.

[0012] As a preferred technical scheme of the present application, when the number of pressure sensors is not less than six, in step S3, the sliding block is only needed to be locked and positioned in advance through the locking bolts, and the position of the pressure sensor does not need to be adjusted by moving the sliding block along the sliding slot.

[0013] Compared with the prior art, the present application has the following beneficial effects: The hot rolling mill main motor coupling coaxial degree detection device and detection method provided by the application has simple structure, low skill and experience requirement for operators, can directly judge the offset direction and offset device of the coupling passive end through the values detected by the pressure sensors at different positions, has high detection precision, can adjust the coupling passive end in real time according to the detection values, and is simple to operate and convenient to use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the application; Figure 2 It is a sectional structural schematic diagram of the application; Figure 3 It is a sectional structural schematic diagram of the arc-shaped plate of the application; Figure 4 It is a structural schematic diagram when the application is used; Figure 5 It is a right view structural schematic diagram of the application. Figure 4

[0015] In the figure: 1 horizontal frame, 2 arc-shaped clamp, 21 arc-shaped rod, 3 arc-shaped plate, 31 clamping groove, 32 clamping plate, 4 clamping plate, 5 sliding groove, 6 sliding block, 61 locking bolt, 7 elastic column, 71 pressure sensor. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the application.

[0017] Please refer to Figures 1-5 The application provides a technical solution: a hot rolling mill main motor coupling coaxial degree detection device, comprising two symmetrically arranged horizontal frames 1, one end of the horizontal frame 1 is provided with an arc-shaped clamp 2 capable of forming a ring, and a ring-shaped part is slidingly installed on the horizontal frame 1, the ring-shaped part comprises two arc-shaped plates 3, a sliding groove 5 is formed in the inner circumferential side of the arc-shaped plate 3, a sliding block 6 is slidingly arranged in the sliding groove 5, an elastic column 7 is installed on the sliding block 6, and a pressure sensor 71 is arranged at the end of the elastic column 7 away from the sliding block 6.

[0018] As a preferred technical solution of the application, an arc-shaped sliding groove is formed in the outer circumferential side of the arc-shaped clamp 2, and an arc-shaped rod 21 is slidingly arranged in the arc-shaped sliding groove. After the two arc-shaped clamps 2 are clamped at the coupling driving end, the arc-shaped rod 21 is moved along the arc-shaped sliding groove, and the two arc-shaped clamps 2 are clamped at the coupling driving end through the arc-shaped rod 21.

[0019] ​As a preferred technical scheme of the present application, the arc-shaped plate 3 is provided with a clamping plate 4 at a position corresponding to the horizontal frame 1, and the arc-shaped plate 3 is slidably arranged on the horizontal frame 1 through the clamping plate 4.

[0020] As a preferred technical scheme of the present application, the end of one arc-shaped plate 3 is provided with a clamping groove 31, and the end of the other arc-shaped plate 3 is provided with a clamping plate 32, and the clamping plate 32 is movably clamped in the clamping groove 31, and the two arc-shaped plates 3 are clamped together to form a ring-shaped member through the clamping of the clamping plate 32 and the clamping groove 31.

[0021] As a preferred technical scheme of the present application, three evenly distributed screw holes are formed in the sliding block 6, and a spring column 7 is threadedly connected in the middle screw hole, and locking bolts 61 are threadedly connected in the two side screw holes, the sliding block 6 can be positioned through the locking bolts 61, and the spring column 7 is a hollow telescopic rod structure provided with a spring inside.

[0022] A detection method of a main motor shaft coupling coaxiality detection device for a hot rolling mill, comprising the following steps: S1, an arc-shaped clamp 2 is arranged according to the driving end of the shaft coupling, the arc-shaped clamp 2 is tightly attached to the driving end of the shaft coupling, and then the horizontal frame 1 is kept horizontal; S2, the arc-shaped plate 3 with the sliding block 6 is clamped on the side of the driven end of the shaft coupling, the clamping plate 32 is inserted into the clamping groove 31, and the clamping plate 4 is clamped on the horizontal frame 1, corresponding scales are marked on the horizontal frame 1 and the arc-shaped plate 3 respectively, and the arc-shaped plate 3 is moved to a position close to the arc-shaped clamp 2; S3, the sliding block 6 is rotated along the sliding groove 5, the sliding block 6 drives the pressure sensor 71 to rotate through the spring column 7, and the rotation is stopped every certain angle, and the pressure value of the pressure sensor 71 at the corresponding position is recorded; S4, then the arc-shaped plate 3 is moved away from the arc-shaped clamp 2, and S3 is repeated, and the pressure values of the pressure sensor 71 at different positions of the horizontal frame 1 are recorded; S5, whether the driving end and the driven end of the shaft coupling are parallel is judged according to the values of the pressure sensor 71 at different positions and angles of the driven end of the shaft coupling.

[0023] As a preferred technical scheme of the present application, when the number of pressure sensors 71 is not less than six, the sliding block 6 is locked and positioned in advance through the locking bolts 61 in step S3, and the position of the pressure sensor 71 does not need to be adjusted by moving the sliding block 6 along the sliding groove 5.

[0024] When adjusting the passive end, two annular members can be installed on the horizontal frame 1, one annular member is close to the arc-shaped clamp 2, and the other arc-shaped plate 3 is moved to the end away from the arc-shaped clamp 2, then the passive end of the coupling is adjusted, and the value of the pressure sensor 71 in the arc-shaped member is observed during the adjustment process, when the difference value detected by any two pressure sensors 71 is less than the error value, it is indicated that the coaxiality of the passive end and the driving end of the coupling reaches the requirement.

[0025] The application has simple structure, low skill and experience requirement for the operator, and the offset direction and the offset device of the passive end of the coupling can be directly judged by the value detected by the pressure sensor 71 at different positions, the detection precision is high, the passive end of the coupling can be adjusted in real time according to the detection value, the operation is simple, and the use is convenient.

[0026] The undisclosed part in the application is prior art, and the specific structure, material and working principle are not described in detail. Although the embodiments of the application have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the application, and the scope of the application is defined by the appended claims and their equivalents.

Claims

1. A device for detecting the coaxiality of a main motor coupling for a hot rolling mill, comprising two symmetrically arranged horizontal frames (1), characterized in that: One end of the horizontal frame (1) is provided with an arc-shaped clamp (2) that can form a ring. A ring-shaped component is slidably installed on the horizontal frame (1). The ring-shaped component includes two arc-shaped plates (3). A groove (5) is opened on the inner circumference of the arc-shaped plate (3). A slider (6) is slidably arranged inside the groove (5). An elastic column (7) is installed on the slider (6). A pressure sensor (71) is provided at the end of the elastic column (7) away from the slider (6).

2. The coaxiality detection device for the main motor coupling of a hot rolling mill according to claim 1, characterized in that: The outer periphery of the arc-shaped clamp (2) is provided with an arc-shaped groove, and an arc-shaped rod (21) is slidably arranged inside the arc-shaped groove.

3. The coaxiality detection device for the main motor coupling of a hot rolling mill according to claim 2, characterized in that: The arc plate (3) is provided with a clamping plate (4) at the part corresponding to the horizontal frame (1), and the arc plate (3) is slidably set on the horizontal frame (1) through the clamping plate (4).

4. The coaxiality detection device for the main motor coupling of a hot rolling mill according to claim 3, characterized in that: One of the arc-shaped plates (3) has a slot (31) at one end, and the other arc-shaped plate (3) has a plate (32) at one end, and the plate (32) is movably engaged in the slot (31).

5. The coaxiality detection device for the main motor coupling of a hot rolling mill according to claim 4, characterized in that: The slider (6) has three evenly distributed screw holes, and the screw hole in the middle is threaded with an elastic post (7), and the screw holes on both sides are threaded with locking bolts (61).

6. A detection method based on the coaxiality detection device for the main motor coupling of a hot rolling mill as described in claim 5, characterized in that: Includes the following steps: S1. Set the arc-shaped clamp (2) according to the active end of the coupling, so that the arc-shaped clamp (2) is tightly attached to the active end of the coupling, and then keep the horizontal frame (1) horizontal; S2. The arc plate (3) with slider (6) is clamped on the driven end side of the coupling, so that the clamping plate (32) is inserted into the clamping groove (31), and the clamping plate (4) is clamped on the horizontal frame (1). The corresponding scales are marked on the horizontal frame (1) and the arc plate (3), and the arc plate (3) is moved to a position close to the arc clamp (2). S3. Rotate the slider (6) along the slide groove (5). The slider (6) drives the pressure sensor (71) to rotate through the elastic column (7). Stop after rotating a certain angle and record the pressure value of the pressure sensor (71) at the corresponding position. S4. Then move away from the arc clamp (2) and repeat S3. Record the pressure values ​​of the pressure sensor (71) at different angles of the driven end of the coupling when at different positions of the horizontal frame (1). S5. Determine whether the driving and driven ends of the coupling are parallel by detecting the values ​​of the driven end of the coupling at different positions and angles using the pressure sensor (71).

7. The coaxiality detection device and method for the main motor coupling of a hot rolling mill according to claim 6, characterized in that: When there are at least six pressure sensors (71), in step S3, it is only necessary to lock and position them in advance by tightening the bolt (61) and the slider (6), without having to move the slider (6) along the groove (5) to adjust the position of the pressure sensor (71).

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