Circle shear side clearance adjusting device

Abstract

The utility model relates to the technical field of circle shears, in particular to a circle shear side gap adjusting device which comprises a box body, a motor is installed on the left side wall of the box body, the output end of the motor is fixedly connected with a first gear, a threaded block is fixedly installed on the inner wall of the box body, and the inner side of the threaded block is in threaded connection with a threaded sleeve. A second gear is welded to the left end of the threaded sleeve, and a cutter shaft is movably installed on the inner side of the threaded sleeve through a bearing. A positioning structure is installed on the box body, the positioning structure comprises a fixing plate, the fixing plate is fixedly installed on the right side wall of the box body, and a sliding groove is formed in the top face of the fixing plate. According to the utility model, through the matching of the pressing frame and the friction pad, the cutter shaft can be downwards pressed and fixed on the fixed plate capable of linearly moving, so that the cutter shaft can only linearly move and cannot rotate when being adjusted to move, the accident that the cutter shaft rotates to hurt people is further avoided, and the use safety of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of disc shears, in particular to a disc shear side clearance adjusting device. Background Art

[0002] In the rolling process of non-ferrous metal aluminum strips in the metallurgical industry, some varieties of aluminum strips have very obvious edge cracking, and some varieties require edge trimming of the rolled aluminum strips to facilitate subsequent processing steps. Therefore, most hot rolling mills and other types of hot rolling mills are equipped with disc shears for edge trimming.

[0003] In this regard, China has applied for patent number: CN201721466033.0, which discloses a disc shear blade side clearance adjustment mechanism, including a drive device and a threaded pair, the threaded pair including a first threaded member and a second threaded member, the first threaded member and the second threaded member are connected by threads, the first threaded member is axially fixed to the blade shaft of the disc shear, the second threaded member is fixed to the blade shaft housing, and the drive device is connected to the first threaded member in a transmission manner. The utility model converts rotary motion into linear motion through a threaded pair, so that the disc shear blade side clearance can be automatically adjusted through a drive device such as a motor. It not only replaces manual adjustment of the blade clearance through mechanization, but is also particularly suitable for circular shears in aluminum hot rolling mills, and has the advantages of reducing human maintenance resources, reducing downtime, improving production efficiency, and being very convenient to operate.

[0004] This mechanism converts rotational motion into linear motion through a threaded pair to adjust the side clearance of the disc shear blade. However, the cutter shaft and the eccentric sleeve are rotationally connected. In the process of adjusting the side clearance of the disc shear blade by rotating the eccentric sleeve, the inner cutter shaft will be driven to rotate, causing the angle of the cutter shaft to change. The rotating cutter shaft poses a risk of injury, which makes the use of the device a safety hazard.

[0005] Therefore, in order to solve the above problems, a disc shear side clearance adjustment device is proposed. Utility Model Content

[0006] The purpose of the utility model is to provide a disc shear side clearance adjustment device to solve the problem that the mechanism in the prior art mentioned in the above background technology converts rotational motion into linear motion through a threaded pair to adjust the side clearance of the disc shear blade, but the knife shaft and the eccentric sleeve are rotatably connected. In the process of adjusting the side clearance of the disc shear blade by rotating the eccentric sleeve, the inner knife shaft will be driven to rotate, so that the angle of the knife shaft changes. The rotating knife shaft poses a risk of injury, which makes the use of the device a safety hazard.

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a disc shear side clearance adjustment device, comprising: a box body, a motor is installed on the left side wall of the box body, a first gear is fixedly connected to the output end of the motor, a threaded block is fixedly installed on the inner wall of the box body, a threaded sleeve is threadedly connected to the inner side of the threaded block, a second gear is welded to the left end of the threaded sleeve, and a cutter shaft is movably installed on the inner side of the threaded sleeve through a bearing;

[0008] A positioning structure is installed on the box body, and the positioning structure includes a fixing plate, and the fixing plate is fixedly installed on the right side wall of the box body. A sliding groove is opened on the top surface of the fixing plate, and a slider is slidably installed on the inner side of the sliding groove. Threaded rods are movably installed on both ends of the slider through bearings. A pressure frame is installed on the upper side of the slider, and a friction pad is bonded to the inner wall of the pressure frame.

[0009] Preferably, a maintenance structure is installed on the top surface of the box body, and the maintenance structure includes a refueling port, the refueling port is fixedly connected to the top surface of the box body, and a top cover is sleeved on the upper end of the refueling port.

[0010] Preferably, the first gear is meshed with the second gear, and the right end of the knife shaft passes through the right side wall of the box.

[0011] Preferably, the slider is in a "cross" shape, and both ends of the slider pass through the fixed plate.

[0012] Preferably, the upper end of the threaded rod is threadedly connected to a pressing frame, and the pressing frame is sleeved on the outer side of the knife shaft.

[0013] Preferably, the oil filling port is located just above the meshing point between the threaded block and the second gear.

[0014] Compared with the prior art, the beneficial effect of the utility model is that the utility model can press the knife shaft down and fix it on a fixed plate which can move linearly through the cooperation of the pressure frame and the friction pad, so that when the knife shaft is adjusted and moved, it can only move linearly but cannot rotate, thereby avoiding accidents caused by the rotation of the knife shaft and injuring people, and improving the safety of the device.

[0015] 1. The utility model is provided with a positioning structure. When the movable cutter shaft needs to be adjusted, the threaded rod can be rotated, the threaded rod rotates on the slider, and the upper end of the threaded rod is threadedly connected to the pressing frame. The rotation of the threaded rod drives the pressing frame to move outside the cutter shaft, which can drive the friction pad to fit the outer wall of the cutter shaft downward, so that the angle of the cutter shaft can be fixed. The starting motor can drive the first gear to rotate, and the first gear is meshed with the second gear. The rotation of the first gear drives the threaded sleeve to rotate through the second gear. The threaded sleeve is threadedly connected to the threaded block, so that the threaded sleeve will drive the inner cutter shaft to move linearly when it rotates, so that the position of the cutter shaft can be adjusted, and the cutter shaft is fixed by the friction pad. During the movement of the cutter shaft, the slider can be driven to slide in the slide groove by the pressing frame and the threaded rod, so that the angle of the friction pad can be fixed while the position of the cutter shaft can be adjusted, so as to ensure safety in use.

[0016] 2. The utility model is provided with a maintenance structure. By unscrewing the top cover, lubricating oil can be added into the box through the refueling port. The refueling port is located just above the meshing point between the threaded block and the second gear. The lubricating oil can be dripped onto the threaded block and the second gear, thereby ensuring the smooth meshing between the threaded block and the second gear. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of a top view of the structure of the box of the utility model;

[0019] Figure 3 It is a schematic diagram of the front cross-section of the structure of the threaded sleeve of the utility model;

[0020] Figure 4 It is a schematic diagram of the structural explosion of the positioning structure of the utility model.

[0021] In the figure: 1. Box body; 11. Motor; 12. First gear; 13. Threaded block; 14. Threaded sleeve; 15. Second gear; 16. Cutter shaft; 2. Positioning structure; 21. Fixed plate; 22. Slide groove; 23. Slider; 24. Threaded rod; 25. Press frame; 26. Friction pad; 3. Maintenance structure; 31. Refueling port; 32. Top cover. 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-Figure 4 , an embodiment provided by the utility model:

[0024] The housing 1, motor 11, first gear 12, threaded block 13, threaded sleeve 14, second gear 15 and cutter shaft 16 used in the present application are products that can be directly purchased on the market, and their principles and connection methods are existing technologies well known to those skilled in the art, so they will not be repeated here.

[0025] A disc shear side clearance adjustment device comprises: a box body 1, a motor 11 is installed on the left side wall of the box body 1, a first gear 12 is fixedly connected to the output end of the motor 11, a thread block 13 is fixedly installed on the inner wall of the box body 1, a thread sleeve 14 is threadedly connected to the inner side of the thread block 13, a second gear 15 is welded to the left end of the thread sleeve 14, and a cutter shaft 16 is movably installed on the inner side of the thread sleeve 14 through a bearing;

[0026] A positioning structure 2 is installed on the box body 1, and the positioning structure 2 includes a fixing plate 21, which is fixedly installed on the right side wall of the box body 1. A slide groove 22 is opened on the top surface of the fixing plate 21, and a slider 23 is slidably installed on the inner side of the slide groove 22. Threaded rods 24 are movably installed on both ends of the slider 23 through bearings. A pressing frame 25 is installed on the upper side of the slider 23, and a friction pad 26 is bonded to the inner wall of the pressing frame 25. Through the cooperation of the pressing frame 25 and the friction pad 26, the knife shaft 16 can be pressed down and fixed on the fixed plate 21 which can move linearly, so that when the knife shaft 16 is adjusted and moved, it can only move linearly but cannot rotate, thereby avoiding the accident of the knife shaft 16 rotating and injuring people, thereby improving the safety of the device.

[0027] Furthermore, a maintenance structure 3 is installed on the top surface of the box body 1, and the maintenance structure 3 includes a refueling port 31. The refueling port 31 is fixedly connected to the top surface of the box body 1. A top cover 32 is sleeved on the upper end of the refueling port 31. By unscrewing the top cover 32, lubricating oil can be added into the box body 1 through the refueling port 31. The refueling port 31 is located just above the meshing point between the threaded block 13 and the second gear 15. The lubricating oil can be dripped onto the threaded block 13 and the second gear 15, which can ensure the smoothness of the meshing between the threaded block 13 and the second gear 15.

[0028] Furthermore, the first gear 12 is meshed with the second gear 15 , and the right end of the knife shaft 16 passes through the right side wall of the box body 1 . The rotation of the first gear 12 can drive the threaded sleeve 14 to rotate through the second gear 15 .

[0029] Furthermore, the slider 23 is in a “X” shape, and both ends of the slider 23 pass through the fixed plate 21 , so that the slider 23 can slide on the fixed plate 21 .

[0030] Furthermore, the upper end of the threaded rod 24 is threadedly connected to the pressing frame 25 , and the pressing frame 25 is sleeved on the outside of the knife shaft 16 . The rotation of the threaded rod 24 can drive the pressing frame 25 to move up and down on the outside of the knife shaft 16 .

[0031] Furthermore, the oil filling port 31 is located just above the meshing point between the threaded block 13 and the second gear 15 , and lubricating oil can be dripped onto the threaded block 13 and the second gear 15 through the oil filling port 31 , thereby ensuring smooth meshing between the threaded block 13 and the second gear 15 .

[0032] Working principle: When the knife shaft 16 needs to be adjusted, the threaded rod 24 can be rotated, and the threaded rod 24 rotates on the slider 23. The upper end of the threaded rod 24 is threadedly connected with the pressing frame 25. The rotation of the threaded rod 24 drives the pressing frame 25 to move outside the knife shaft 16, which can drive the friction pad 26 to fit the outer wall of the knife shaft 16 downward, and the angle of the knife shaft 16 can be fixed;

[0033] The starting motor 11 can drive the first gear 12 to rotate, and the first gear 12 is meshed with the second gear 15. The rotation of the first gear 12 drives the threaded sleeve 14 to rotate through the second gear 15. The threaded sleeve 14 is threadedly connected with the threaded block 13. Therefore, when the threaded sleeve 14 rotates, it will drive the inner knife shaft 16 to move linearly, and the position of the knife shaft 16 can be adjusted. The knife shaft 16 is fixed by the friction pad 26. During the movement of the knife shaft 16, the slider 23 can be driven by the pressure frame 25 and the threaded rod 24 to slide in the slide groove 22, so that the position of the knife shaft 16 can be adjusted while the angle of the friction pad 26 can be fixed, which can ensure safety in use.

[0034] By unscrewing the top cover 32, lubricating oil can be added into the box body 1 through the refueling port 31. The refueling port 31 is located just above the meshing point between the threaded block 13 and the second gear 15. The lubricating oil can be dripped onto the threaded block 13 and the second gear 15 to ensure smooth meshing between the threaded block 13 and the second gear 15.

[0035] The above description is only a preferred embodiment of the utility model and does not limit the utility model in any form. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A disc shear side clearance adjustment device, comprising: A box body (1), a motor (11) is installed on the left side wall of the box body (1), a first gear (12) is fixedly connected to the output end of the motor (11), a threaded block (13) is fixedly installed on the inner wall of the box body (1), a threaded sleeve (14) is threadedly connected to the inner side of the threaded block (13), a second gear (15) is welded to the left end of the threaded sleeve (14), and a knife shaft (16) is movably installed on the inner side of the threaded sleeve (14) through a bearing; Features: The box body (1) is provided with a positioning structure (2), the positioning structure (2) comprising a fixing plate (21), the fixing plate (21) being fixedly mounted on the right side wall of the box body (1), the top surface of the fixing plate (21) being provided with a slide groove (22), the inner side of the slide groove (22) being provided with a slider (23) being slidably mounted, the two ends of the slider (23) being provided with threaded rods (24) being movably mounted via bearings, the upper side of the slider (23) being provided with a press frame (25), the inner wall of the press frame (25) being bonded with a friction pad (26).

2. A disc shear side clearance adjustment device according to claim 1, characterized in that: A maintenance structure (3) is installed on the top surface of the box body (1), and the maintenance structure (3) comprises a refueling port (31). The refueling port (31) is fixedly connected to the top surface of the box body (1), and a top cover (32) is sleeved on the upper end of the refueling port (31).

3. A disc shear side clearance adjustment device according to claim 1, characterized in that: The first gear (12) is meshed with the second gear (15), and the right end of the knife shaft (16) passes through the right side wall of the box body (1).

4. A disc shear side clearance adjustment device according to claim 1, characterized in that: The sliding block (23) is in a "cross" shape, and both ends of the sliding block (23) penetrate the fixing plate (21).

5. The disc shear side clearance adjustment device according to claim 1, characterized in that: The upper end of the threaded rod (24) is threadedly connected to a pressing frame (25), and the pressing frame (25) is sleeved on the outer side of the knife shaft (16).

6. A disc shear side clearance adjustment device according to claim 2, characterized in that: The oil filling port (31) is located just above the meshing position of the threaded block (13) and the second gear (15).

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