Shear blade quick change structure

Abstract

The application discloses a shearing blade quick change structure, which comprises an upper shearing blade, the upper shearing blade is installed on an upper shearing blade crossbeam, the upper shearing blade crossbeam is connected with a rack through a hydraulic cylinder, a lower shearing blade is arranged on one side below the upper shearing blade, the lower shearing blade is installed on the rack through a lower shearing blade crossbeam, and a window is further arranged, the rack is provided with the window on one side, the window corresponds to the positions of the upper shearing blade and the lower shearing blade, an upper shearing blade quick change roller is arranged in the middle of the window, and a lower shearing blade quick change roller is arranged below the window; the window is arranged on the side of the rack, so that the upper shearing blade and the lower shearing blade can be pulled out from the side, the upper shearing blade quick change roller and the lower shearing blade quick change roller are arranged, the pulling friction can be reduced when the upper shearing blade or the lower shearing blade is pulled out, and the upper shearing blade or the lower shearing blade can be conveniently taken out from the equipment; and the application has the advantages of simple structure, safe operation and high efficiency.

Description

Technical Field

[0001] This application relates to the field of hydraulic shear blade maintenance technology, specifically a quick-change structure for shear blades. Background Technology

[0002] Hydraulic shears for thick and wide strips have blades that are heavy, exceeding 50 kg, and cannot be manually changed. The space in this location is confined, making overhead crane hoisting impossible. Conventional blade replacement methods require manual operation with simple tools, which is difficult and risky. Therefore, this application proposes a quick-change blade structure to solve this problem. Summary of the Invention

[0003] The technical problem to be solved by this application is to overcome the existing defects and provide a quick-change shear blade structure, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, this application provides the following technical solution: a quick-change shear blade structure, including an upper shear blade, which is mounted on an upper shear blade crossbeam. The upper shear blade crossbeam is connected to the frame via a hydraulic cylinder. A lower shear blade is provided on one side below the upper shear blade and is mounted on the frame via a lower shear blade crossbeam. The structure also includes a window, which is provided on one side of the frame and corresponds to the positions of the upper and lower shear blades. A quick-change roller for the upper shear blade is provided in the middle of the window, and a quick-change roller for the lower shear blade is provided below the window.

[0005] Furthermore, the upper and lower shear blades are provided with threaded holes on the side near the window on the frame, and shear blade pull rods are provided in the threaded holes.

[0006] Furthermore, the side of the frame has a double-layer structure, with windows extending through the double-layer frame. The number of upper and lower quick-change rollers for the shear blades is the same as the number of windows.

[0007] Furthermore, the apex of the quick-change roller of the lower shear blade is at the same height as the bottom surface of the lower shear blade.

[0008] Furthermore, it also includes an upper shear blade replacement bracket, which is installed on the lower shear blade crossbeam.

[0009] Furthermore, an auxiliary roller is provided on one side of the upper shear blade replacement bracket.

[0010] Compared with the prior art, this application facilitates the removal of the upper and lower shear blades by opening windows on the side of the frame. The quick-change rollers for the upper and lower shear blades reduce the pulling friction when removing them, making it easier to take the upper or lower shear blades out of the equipment. This application has a simple structure, is safe to operate, and is highly efficient. Attached Figure Description

[0011] Figure 1This is the front view of this application;

[0012] Figure 2 This is a side view of this application;

[0013] Figure 3 for Figure 1 Sectional view of AA.

[0014] In the diagram: 1 Upper shear blade, 2 Upper shear blade crossbeam, 3 Frame, 4 Lower shear blade, 5 Lower shear blade crossbeam, 6 Window, 7 Upper shear blade quick change roller, 8 Lower shear blade quick change roller, 9 Shear blade tie rod, 10 Upper shear blade replacement bracket, 11 Auxiliary roller. Detailed Implementation

[0015] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application (for ease of description and understanding, hereinafter referred to as...), Figure 1 (The above is described above). All other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0016] Please see Figure 1-3 This application provides a quick-change shear blade structure technical solution: a quick-change shear blade structure includes an upper shear blade 1, which is mounted on an upper shear blade crossbeam 2. The upper shear blade crossbeam 2 is connected to a frame 3 via a hydraulic cylinder. A lower shear blade 4 is provided on one side below the upper shear blade 1, and the lower shear blade 4 is mounted on the frame 3 via a lower shear blade crossbeam 5.

[0017] The upper shear blade 1 is mounted on the upper shear blade beam 2 by fixing screws, and the lower shear blade 4 is mounted on the lower shear blade beam 5 by fixing bolts. The upper shear blade beam 2 and the upper shear blade 1 are moved downward by a hydraulic cylinder and cooperate with the lower shear blade 4 to shear the wide and thick strip.

[0018] It also includes a window 6, which is provided on one side of the frame 3. The window 6 corresponds to the position of the upper shear blade 1 and the lower shear blade 4. The upper shear blade quick-change roller 7 is provided in the middle of the window 6, and the lower shear blade quick-change roller 8 is provided below the window 6.

[0019] Both ends of the upper shear blade quick-change roller 7 and the lower shear blade quick-change roller 8 are rotatably connected to mounting plates. The mounting plates are fixed to the frame 3 by bolts. The upper shear blade quick-change roller 7 and the lower shear blade quick-change roller 8 can support the upper shear blade 1 and the lower shear blade 4, reduce the friction of pulling the upper shear blade 1 and the lower shear blade 4, and facilitate the pulling out of the upper shear blade 1 and the lower shear blade 4.

[0020] Furthermore, the side of the frame 3 has a double-layer structure, and the window 6 runs through the double-layer structure of the frame 3. The number of upper shear quick-change rollers 7 and lower shear quick-change rollers 8 is the same as the number of windows 6.

[0021] There are two upper scissor blade quick-change rollers 7 and 8, and two windows 6. The two upper scissor blade quick-change rollers 7 and 8 can improve the stability of the movement of the upper scissor blade 1 and the lower scissor blade 4.

[0022] Furthermore, threaded holes are provided on the side of the upper shear blade 1 and the lower shear blade 4 near the upper window 6 of the frame 3, and shear blade pull rods 9 are provided in the threaded holes.

[0023] The shear blade pull rod 9 consists of a threaded rod and a pull block. Through the interaction between the threaded rod and the threaded hole, the shear blade pull rod 9 can be screwed into the threaded hole at one end of the upper shear blade 1 or the lower shear blade 4, making it convenient for the worker to pull the upper shear blade 1 or the lower shear blade 4 out from the upper shear blade crossbeam 2 or the lower shear blade crossbeam 5.

[0024] Furthermore, the apex of the lower shear blade quick-change roller 8 is at the same height as the bottom surface of the lower shear blade 4.

[0025] When the lower shear blade 4 is pulled out a certain distance, the bottom surface of the lower shear blade 4 contacts the lower shear blade quick-change roller 8, so that the two lower shear blade quick-change rollers 8 support the lower shear blade 4 and reduce the friction generated by pulling the lower shear blade 4, making it easier to pull out the lower shear blade 4.

[0026] Furthermore, it also includes an upper shear blade replacement bracket 10, which is installed on the lower shear blade crossbeam 5.

[0027] Furthermore, an auxiliary roller 11 is provided on one side of the upper shear blade replacement bracket 10. The auxiliary roller 11 can support the upper shear blade 1 and reduce the friction generated when pulling the upper shear blade 1.

[0028] When disassembling the upper shear blade 1, first install the upper shear blade replacement bracket 10 on the lower shear blade crossbeam 5, then loosen the fixing screws that fix the upper shear blade 1, and the upper shear blade 1 falls onto the auxiliary roller 11 of the upper shear blade replacement bracket 10, where the auxiliary roller 11 supports the upper shear blade 1.

[0029] When in use: When it is necessary to remove the lower shear blade 4, loosen the fixing screws that fix the lower shear blade 4, screw the shear blade pull rod 9 into the threaded hole at one end of the lower shear blade 4, and pull it out a certain distance. The bottom surface of the lower shear blade 4 will contact the lower shear blade quick-change roller 8. The two lower shear blade quick-change rollers 8 will support the lower shear blade 4 and reduce the friction generated by pulling the lower shear blade 4, making it easier to pull out the lower shear blade 4.

[0030] When installing the lower shear blade 4, the action is the opposite of the above.

[0031] When it is necessary to disassemble the upper scissor blade 1, first fix the upper scissor blade replacement bracket 10 to the lower scissor blade crossbeam 5 with screws, loosen the fixing screws fixing the upper scissor blade 1, and the upper scissor blade 1 falls onto the auxiliary roller 11 of the upper scissor blade replacement bracket 10. The auxiliary roller 11 supports the upper scissor blade 1. Screw the scissor blade pull rod 9 into the threaded hole at one end of the upper scissor blade 1. After pulling out a certain distance, the upper scissor blade 1 will fall onto the upper scissor blade quick-change roller 7, reducing the pulling friction and making it easier to pull out.

[0032] When installing the scissor blades, the action is the opposite of the above.

[0033] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A quick-change shear blade structure, comprising an upper shear blade (1), the upper shear blade (1) being mounted on an upper shear blade crossbeam (2), the upper shear blade crossbeam (2) being connected to a frame (3) via a hydraulic cylinder, and a lower shear blade (4) being provided on one side below the upper shear blade (1), the lower shear blade (4) being mounted on the frame (3) via a lower shear blade crossbeam (5), characterized in that: It also includes a window (6), which is provided on one side of the frame (3), and the window (6) corresponds to the position of the upper shear blade (1) and the lower shear blade (4). The upper shear blade quick change roller (7) is provided in the middle of the window (6), and the lower shear blade quick change roller (8) is provided below the window (6).

2. The quick-change shear blade structure according to claim 1, characterized in that: The upper shear blade (1) and lower shear blade (4) are provided with threaded holes on the side of the upper window (6) of the frame (3), and shear blade pull rods (9) are provided in the threaded holes.

3. The quick-change shear blade structure according to claim 1, characterized in that: The frame (3) has a double-layer structure on the side, and the window (6) runs through the double-layer frame (3). The number of upper shear quick-change rollers (7) and lower shear quick-change rollers (8) is the same as the number of windows (6).

4. The quick-change shear blade structure according to claim 1, characterized in that: The apex of the quick-change roller (8) of the lower shear blade is at the same height as the bottom surface of the lower shear blade (4).

5. The quick-change shear blade structure according to claim 1, characterized in that: It also includes an upper shear blade replacement bracket (10), which is installed on the lower shear blade crossbeam (5).

6. The quick-change shear blade structure according to claim 5, characterized in that: An auxiliary roller (11) is provided on one side of the upper shear blade replacement bracket (10).

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