Positioning device of roll changing support of rolling mill back-up roll

Abstract

The utility model relates to the technical field of roll changing support positioning, in particular to a positioning device for a roll changing support of a supporting roll of a rolling mill, which comprises a roll changing support body, and adjusting and positioning components are arranged at four corners of the roll changing support body. The adjusting and positioning assembly comprises a servo motor, the output end of the servo motor is fixedly connected with a two-way lead screw, the outer walls of the two ends of the two-way lead screw are connected with nut pairs, the outer walls of the nut pairs are provided with guide plates, inserting rods penetrate through the inner sides of the guide plates, and the two ends of the inserting rods are fixedly connected with positioning plates; and a fixing rod penetrates through the interior of the middle position of the positioning plate. According to the roll changing support positioning device, the two sides of the supporting roll are limited through the adjusting positioning assembly and the limiting plates, position deviation caused by observation only depending on human eyes is avoided, the upper half portions of the positioning plates are attached to the outer wall of the supporting roll, positioning is more accurate, and the situation that the position of the supporting roll deviates is avoided.

Description

Technical Field

[0001] This utility model relates to the field of roll changing bracket positioning technology, specifically a positioning device for a rolling mill support roll changing bracket. Background Technology

[0002] A rolling mill is a piece of equipment that enables the rolling process of metals. It generally refers to the equipment that completes the entire process of rolling material production. When changing the support rolls of a rolling mill, a roll changing bracket is needed for support.

[0003] However, the existing positioning device for the roll changing bracket consists of inclined plates welded to both the upper and lower ends of the bracket. Since the positioning device is fixedly welded to the roll changing bracket, when changing support rolls of different diameters, the positioning effect is generally poor because the positioning device cannot be adjusted, and deviations in the position of the support rolls are prone to occur. Utility Model Content

[0004] The purpose of this utility model is to provide a positioning device for a rolling mill support roll changer bracket, so as to solve the problem mentioned in the background art that the positioning device cannot be adjusted.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a positioning device for a rolling mill support roll changing bracket, comprising:

[0006] The main body of the roller changing bracket has adjustment and positioning components at its four corners;

[0007] An adjustment and positioning assembly includes a servo motor. A bidirectional lead screw is fixedly connected to the output end of the servo motor. Nut pairs are connected to the outer walls of both ends of the bidirectional lead screw. A guide plate is provided on the outer wall of the nut pairs. A rod passes through the inner side of the guide plate. Positioning plates are fixedly connected to both ends of the rod. A fixing rod passes through the middle of the positioning plate. A first gear is connected to the middle outer wall of the bidirectional lead screw. A toothed chain meshes with the outer wall of the first gear. A second gear meshes with the inner wall of the toothed chain at the end furthest from the first gear. A shaft passes through the interior of the second gear. Fixing blocks are connected to the outer walls of both ends of the shaft. A limit plate is connected to the outer wall of the shaft.

[0008] Preferably, the servo motor is fixedly connected to the main body of the roller changing bracket, the bidirectional lead screw is rotatably connected to the main body of the roller changing bracket, and the nut assembly is fixedly connected to the guide plate.

[0009] Preferably, the guide plate is slidably connected to the main body of the roller changing bracket, and the guide plate has holes corresponding to the sliding range of the insertion rod.

[0010] Preferably, the insertion rod is movably connected to the guide plate, and the positioning plate is rotatably connected to the fixing rod.

[0011] Preferably, the two ends of the fixed rod are fixedly connected to the main body of the roller changing bracket, and the first gear is fixedly connected to the bidirectional lead screw.

[0012] Preferably, the second gear is fixedly connected to the shaft, and the shaft is rotatably connected to the fixed block.

[0013] Preferably, the fixing block is fixedly connected to the main body of the roller changing bracket, and the limiting plate is fixedly connected to the shaft.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This novel roller changing bracket positioning device, through adjusting the settings of the positioning components, requires a crane to lift the support roller during roller changing. The servo motor then drives a bidirectional lead screw to rotate, which in turn drives a first gear. This first gear, via a gear chain, drives a second gear, which in turn drives a shaft. The shaft then drives a limiting plate, causing the limiting plate to rotate upwards. When the lifted support roller is placed on the roller changing bracket body, the limiting plate restricts the position of the support roller on both sides, preventing positional deviations that may occur based solely on visual observation. Before the support roller is fully lowered, the servo motor drives the bidirectional lead screw to rotate in the opposite direction, ensuring the limiting plate is tightly against the outer wall of the roller changing bracket body and the positioning plate extends to its maximum angle. After the support roller is lowered, the servo motor is restarted, driving the bidirectional lead screw to rotate. This causes two nut pairs to move away from each other, which in turn causes guide plates to move away from each other. The guide plates then move an insert rod, which in turn causes the positioning plate to rotate around a fixed rod, ensuring the upper part of the positioning plate is against the outer wall of the support roller. This results in more accurate positioning and prevents support roller positional deviations. Attached Figure Description

[0016] Figure 1 This is a front view of the overall structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the overall structure of this utility model;

[0018] Figure 3 For the present utility model Figure 2 Schematic diagram of part A in the middle;

[0019] Figure 4 This is an exploded view of the inner parts of the adjustment and positioning component of this utility model;

[0020] Figure 5 This is an exploded view of the outer part of the adjustment and positioning component of this utility model.

[0021] In the diagram: 01. Roller changing bracket main body; 02. Adjustment and positioning component; 21. Servo motor; 22. Two-way lead screw; 23. Nut pair; 24. Guide plate; 25. Insert rod; 26. Positioning plate; 27. Fixing rod; 28. Gear No. 1; 29. ​​Gear chain; 30. Gear No. 2; 31. Shaft; 32. Fixing block; 33. Limiting plate. 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] Please see Figure 1-5 The present invention provides an embodiment of a positioning device for a rolling mill support roll changing bracket. The main body 01 of the changing bracket, the servo motor 21 and the nut pair 23 used in this application are all products that can be directly purchased on the market. Their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be described in detail here.

[0024] Includes: a roller changing bracket body 01, with adjustment and positioning components 02 at the four corners of the roller changing bracket body 01;

[0025] The positioning assembly 02 includes a servo motor 21, which provides power. Starting the servo motor 21 drives the bidirectional lead screw 22 to rotate. The output end of the servo motor 21 is fixedly connected to the bidirectional lead screw 22. When the bidirectional lead screw 22 rotates, it drives the first gear 28 to rotate. The first gear 28 drives the second gear 30 to rotate via the gear chain 29. Nut pairs 23 are connected to the outer walls of both ends of the bidirectional lead screw 22. Guide plates 24 are provided on the outer walls of the nut pairs 23, serving a guiding function. Insert rods 25 pass through the inner side of the guide plates 24, allowing free movement within the holes of the guide plates 24. Positioning plates 26 are fixedly connected to both ends of the insert rods 25 for positioning. The plate 26 rotates toward the support roller, which can position both sides of the support roller. A fixing rod 27 runs through the middle of the positioning plate 26. A first gear 28 is connected to the middle outer wall of the bidirectional screw 22. A toothed chain 29 meshes with the outer wall of the first gear 28. A second gear 30 meshes with the inner wall of the toothed chain 29 away from the first gear 28. A shaft 31 runs through the inside of the second gear 30. The rotation of the shaft 31 can drive the limiting plate 33 to rotate. The limiting plate 33 rotates upward, which can limit both sides of the support roller. Fixing blocks 32 are connected to the outer walls of both ends of the shaft 31. The limiting plate 33 is connected to the outer wall of the shaft 31. The limiting plate 33 limits both sides of the support roller to avoid positional deviations based solely on human visual observation.

[0026] Furthermore, the servo motor 21 is fixedly connected to the roller changing bracket body 01 to ensure the stability of the servo motor 21's position. The servo motor 21 provides power, and starting the servo motor 21 can drive the bidirectional lead screw 22 to rotate. The bidirectional lead screw 22 is rotatably connected to the roller changing bracket body 01 to ensure that the roller changing bracket body 01 does not affect the rotation of the bidirectional lead screw 22. The rotation of the bidirectional lead screw 22 can drive the first gear 28 to rotate, and the rotation of the bidirectional lead screw 22 can drive the nut pair 23 to move. The nut pair 23 is fixedly connected to the guide plate 24 to ensure that when the nut pair 23 moves, it can drive the guide plate 24 to rotate.

[0027] Furthermore, the guide plate 24 is slidably connected to the roller changing bracket body 01, and the roller changing bracket body 01 plays a guiding role for the guide plate 24. The guide plate 24 has holes corresponding to the sliding range of the insertion rod 25.

[0028] Furthermore, the insertion rod 25 is movably connected to the guide plate 24, and the insertion rod 25 can move freely within the hole of the guide plate 24. The positioning plate 26 is rotatably connected to the fixing rod 27, and the positioning plate 26 rotates toward the support roller to position both sides of the support roller.

[0029] Furthermore, the two ends of the fixed rod 27 are fixedly connected to the main body 01 of the roller changing bracket to ensure the firmness of the fixed rod 27. The first gear 28 is fixedly connected to the bidirectional lead screw 22 to ensure that the bidirectional lead screw 22 can drive the first gear 28 to rotate when it rotates. The first gear 28 drives the second gear 30 to rotate through the tooth chain 29.

[0030] Furthermore, the second gear 30 is fixedly connected to the shaft 31, ensuring that the rotation of the second gear 30 can drive the shaft 31 to rotate. The shaft 31 is rotatably connected to the fixed block 32, ensuring that the fixed block 32 does not affect the rotation of the shaft 31. The rotation of the shaft 31 can drive the limit plate 33 to rotate.

[0031] Furthermore, the fixing block 32 is fixedly connected to the main body 01 of the roller changing bracket to ensure the firmness of the position of the fixing block 32. The limiting plate 33 is fixedly connected to the shaft 31 to ensure that the rotation of the shaft 31 can drive the limiting plate 33 to rotate. When the limiting plate 33 rotates upward, it can limit the two sides of the support roller.

[0032] Working principle: During use, the support roller is lifted by the overhead crane, and the servo motor 21 is started. The servo motor 21 drives the bidirectional lead screw 22 to rotate, which in turn drives the first gear 28 to rotate. The first gear 28 drives the second gear 30 to rotate through the gear chain 29. The second gear 30 drives the shaft 31 to rotate, which in turn drives the limiting plate 33 to rotate, causing the limiting plate 33 to rotate upward. When the lifted support roller is placed on the roller changing bracket body 01, the limiting plate 33 limits both sides of the support roller. Before the support roller is completely lowered, the servo motor... The machine 21 drives the bidirectional lead screw 22 to rotate in the opposite direction, causing the limiting plate 33 to press tightly against the outer wall of the roller changing bracket body 01. The positioning plate 26 is extended to its maximum angle. After the support roller is lowered, the servo motor 21 is started again. The servo motor 21 drives the bidirectional lead screw 22 to rotate. The bidirectional lead screw 22 drives the two nut pairs 23 to move away from each other. The nut pairs 23 drive the guide plates 24 to move away from each other. The guide plates 24 drive the insertion rod 25 to move. The insertion rod 25 drives the positioning plate 26 to rotate around the fixed rod 27, so that the upper part of the positioning plate 26 is attached to the outer wall of the support roller. The above is the complete working principle of this utility model.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A positioning device for a rolling mill support roll changing bracket, characterized in that, include: The roller changing support body (01) is provided with adjustment and positioning components (02) at its four corners; An adjustment positioning component (02) is provided, comprising a servo motor (21). A bidirectional lead screw (22) is fixedly connected to the output end of the servo motor (21). Nut pairs (23) are connected to the outer walls of both ends of the bidirectional lead screw (22). A guide plate (24) is provided on the outer wall of the nut pair (23). A rod (25) passes through the inner side of the guide plate (24). Positioning plates (26) are fixedly connected to both ends of the rod (25). The middle of the positioning plate (26)... A fixed rod (27) runs through the inside of the position. A first gear (28) is connected to the middle outer wall of the double-acting screw (22). A toothed chain (29) meshes with the outer wall of the first gear (28). A second gear (30) meshes with the inner wall of the toothed chain (29) away from the first gear (28). A shaft (31) runs through the inside of the second gear (30). Fixed blocks (32) are connected to the outer walls of both ends of the shaft (31). A limit plate (33) is connected to the outer wall of the shaft (31).

2. The positioning device for a rolling mill support roll changing bracket according to claim 1, characterized in that: The servo motor (21) is fixedly connected to the roller changing bracket body (01), the bidirectional lead screw (22) is rotatably connected to the roller changing bracket body (01), and the nut pair (23) is fixedly connected to the guide plate (24).

3. The positioning device for a rolling mill support roll changing bracket according to claim 1, characterized in that: The guide plate (24) is slidably connected to the roller changing bracket body (01), and the guide plate (24) has holes corresponding to the sliding range of the insertion rod (25).

4. The positioning device for a rolling mill support roll changing bracket according to claim 1, characterized in that: The insertion rod (25) is movably connected to the guide plate (24), and the positioning plate (26) is rotatably connected to the fixing rod (27).

5. The positioning device for a rolling mill support roll changing bracket according to claim 2, characterized in that: The two ends of the fixed rod (27) are fixedly connected to the main body (01) of the roller changing bracket, and the first gear (28) is fixedly connected to the bidirectional lead screw (22).

6. The positioning device for a rolling mill support roll changing bracket according to claim 3, characterized in that: The second gear (30) is fixedly connected to the shaft (31), and the shaft (31) is rotatably connected to the fixed block (32).

7. The positioning device for a rolling mill support roll changing bracket according to claim 4, characterized in that: The fixing block (32) is fixedly connected to the roller changing bracket body (01), and the limiting plate (33) is fixedly connected to the shaft (31).

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