Gantry shears with knife rest balance mechanism

Abstract

The utility model relates to the technical field of gantry shears, and discloses a pair of gantry shears with a knife rest balance mechanism, which comprises a mounting rack, a hydraulic telescopic rod fixedly connected to the top of the mounting rack, a cutting knife fixedly connected to the end part of the hydraulic telescopic rod, and a lubricating component arranged on the side part of the inner wall of the mounting rack, in order to avoid excessive friction between the cutting knife and the inner wall of the mounting frame, lubricating oil is injected into the oil injection pipe after the equipment is used for a long time, so that the lubricating oil can enter the sliding rail through the oil injection pipe, and the lubricating oil can be in contact with the outer surface of the guide piece after being shunted by the triangular shunting block; lubricating oil can be guided by the guiding piece to make contact with the inner wall of the sliding rail, the lubricating oil can flow downwards towards the inner wall of the sliding rail through the obliquely-arranged protruding piece, then the lubricating oil can make contact with the two sides of the cutting knife, the two sides of the cutting knife can be well lubricated, and therefore the cutting knife can move more stably.

Description

Technical Field

[0001] This utility model relates to the field of gantry shear technology, specifically a gantry shear with a blade holder balancing mechanism. Background Technology

[0002] Shearing machines are suitable for metal recycling plants, scrap car dismantling yards, and the smelting and casting industry. They are used for cold shearing, pressing and flanging of various shapes of steel and various metal materials, as well as pressing and molding of powdered products, plastics and rubber. The most commonly used metal shearing machines are alligator shearing machines and gantry shearing machines.

[0003] According to a gantry shear disclosed in the public notice (publication number: CN222020738U), the aforementioned application uses guide columns that are attached to the wall, the first baffle, and the second baffle respectively to prevent twisting during shearing, which would reduce the shearing force and improve durability. It also has a wear-resistant effect and extends the service life. In addition, the attachment of the blade holder to the first baffle and the second baffle respectively can further prevent the blade holder from twisting.

[0004] However, in actual use, the above-mentioned equipment experiences excessive friction between the shear blade and the inner wall of the mounting frame during the up-and-down movement of the shear blade, which can cause the shear blade to be easily pressed down and obstructed, thus making the equipment prone to damage. In view of this, we propose a gantry shear with a blade holder balancing mechanism. Utility Model Content

[0005] The purpose of this invention is to provide a gantry shear with a blade holder balancing mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a gantry shear with a blade holder balancing mechanism, comprising a mounting frame, a hydraulic telescopic rod fixedly connected to the top of the mounting frame, a cutting blade fixedly connected to the end of the hydraulic telescopic rod, and a lubrication assembly provided on the inner wall side of the mounting frame, the lubrication assembly comprising:

[0007] The slide rail is fixedly connected to the inner wall side of the mounting bracket, and an oil injection pipe is fixedly connected to the front of the slide rail. A diverter block is fixedly connected to the inner wall of the oil injection pipe.

[0008] A guide is fixedly connected to the inner wall of the slide rail, and a protrusion is fixedly connected to the inner wall of the slide rail.

[0009] Preferably, the flow divider is arranged in a triangular shape, with the center of the flow divider corresponding to the center of the flow divider, which allows the flow divider to divert and guide the lubricating oil.

[0010] Preferably, the protrusions are arranged at an angle and are evenly distributed in a linear array on the inner wall side of the slide rail, which allows the protrusions to bring the lubricating oil into contact with the inner wall of the slide rail.

[0011] Preferably, there are two guide members, and the two guide members are symmetrically arranged at the center of the slide rail. The size of the guide members is adapted to the size of the slide rail, which allows the guide block to be better installed inside the slide rail.

[0012] Preferably, the outer surface of the oil injection pipe is provided with an auxiliary component, the auxiliary component including a protective sleeve, the protective sleeve being threadedly connected to the outer surface of the oil injection pipe, a spring being fixedly connected to the inner wall side of the protective sleeve, a top block being fixedly connected to the end of the spring, and a sealing ring being fixedly connected to the outer surface of the top block.

[0013] Preferably, the top block is convex, and the size of the top block is adapted to the size of the oil injection pipe.

[0014] Preferably, the size of the protective sleeve is adapted to the size of the oil injection pipe, and the center of the protective sleeve corresponds to the center of the top block.

[0015] Compared with the prior art, this utility model provides a gantry shear with a blade holder balancing mechanism, which has the following advantages:

[0016] 1. This gantry shear with a blade holder balancing mechanism, to avoid excessive friction between the cutting blade and the inner wall of the mounting frame, requires lubricating oil to be injected into the oil injection pipe after prolonged use. This allows the lubricating oil to enter the slide rail through the oil injection pipe, and the lubricating oil is diverted by the triangular diverter block and comes into contact with the outer surface of the guide. The lubricating oil is then guided by the guide to contact the inner wall of the slide rail, and flows downwards along the inclined protrusion towards the inner wall of the slide rail, allowing the lubricating oil to contact both sides of the cutting blade. This ensures good lubrication on both sides of the cutting blade, allowing for more stable movement of the cutting blade.

[0017] 2. In order to prevent dust from entering the oil injection pipe, the protective sleeve of the gantry shear with the blade holder balancing mechanism is installed at the end of the oil injection pipe when it is not in use. The protective sleeve is threaded to the end of the oil injection pipe. This allows the spring force to push the top block, which is then inserted into the oil injection pipe. This causes the outer surface of the sealing ring to contact the inner wall of the oil injection pipe, thus effectively preventing debris and dust from entering the oil injection pipe. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the three-dimensional left-side structure of this utility model;

[0019] Figure 2 This is a schematic cross-sectional view of the slide rail structure of this utility model;

[0020] Figure 3 This is an enlarged structural diagram of area A of this utility model;

[0021] Figure 4 This is a schematic diagram of the auxiliary component structure of this utility model.

[0022] In the diagram: 1. Mounting bracket; 2. Hydraulic telescopic rod; 3. Cutting blade; 4. Lubrication assembly; 401. Slide rail; 402. Oil injection pipe; 403. Diverter block; 404. Guide component; 405. Protrusion; 5. Auxiliary assembly; 501. Protective sleeve; 502. Spring; 503. Top block; 504. Sealing ring. Detailed Implementation

[0023] like Figures 1-4 As shown, this utility model provides a technical solution: a gantry shear with a blade holder balancing mechanism, including a mounting frame 1. A hydraulic telescopic rod 2 is fixedly connected to the top of the mounting frame 1. The hydraulic telescopic rod 2 allows the gantry shear frame to offset the weight of the blade holder and the inertia of motion through hydraulic pressure when it moves up and down, so that the blade holder is evenly stressed in the vertical direction and avoids tilting due to gravity or vibration. A cutting blade 3 is fixedly connected to the end of the hydraulic telescopic rod 2. A lubrication assembly 4 is provided on the inner side of the mounting frame 1. The lubrication assembly 4 includes a slide rail 401, an oil injection pipe 402, a diverter block 403, a guide 404, and a protrusion 405.

[0024] In this embodiment of the present invention, the slide rail 401 is fixedly connected to the inner wall side of the mounting bracket 1. An oil injection pipe 402 is fixedly connected to the front of the slide rail 401. A flow divider 403 is fixedly connected to the inner wall of the oil injection pipe 402. The flow divider 403 is triangular in shape, with the center of each flow divider corresponding to the center of the other flow divider. This allows the flow divider 403 to guide the lubricating oil. A guide member 404 is fixedly connected to the inner wall side of the slide rail 401. There are two guides 404, and the two guides 404 are symmetrically arranged at the center of the slide rail 401. The size of the guide 404 is adapted to the size of the slide rail 401, which allows the guide 404 to be better installed inside the slide rail 401. The inner wall of the slide rail 401 is fixedly connected to a protrusion 405. The protrusion 405 is arranged in an inclined shape and is evenly distributed in a linear array on the side of the inner wall of the slide rail 401. This allows the protrusion 405 to allow the lubricating oil to come into contact with the inner wall of the slide rail 401.

[0025] Meanwhile, an auxiliary component 5 is provided on the outer surface of the oil injection pipe 402. The auxiliary component 5 includes a protective sleeve 501, which is threaded onto the outer surface of the oil injection pipe 402. The size of the protective sleeve 501 is adapted to the size of the oil injection pipe 402, and the center of the protective sleeve 501 corresponds to the center of the top block 503. A spring 502 is fixedly connected to the inner wall side of the protective sleeve 501, and a top block 503 is fixedly connected to the end of the spring 502. The top block 503 is convex, and its size is the same as that of the oil injection pipe 402. Correspondingly, a sealing ring 504 is fixedly connected to the outer surface of the top block 503. This allows the protective sleeve 501 to be installed at the end of the oil injection pipe 402 when the pipe is not in use. The protective sleeve 501 is threadedly connected to the end of the oil injection pipe 402. This allows the spring force of the spring 502 to push the top block 503, causing the top block 503 to be inserted into the oil injection pipe 402. This makes the outer surface of the sealing ring 504 contact the inner wall of the oil injection pipe 402, effectively preventing debris and dust from entering the interior of the oil injection pipe 402.

[0026] In this invention, after prolonged use, lubricating oil is injected into the oil injection pipe 402. This allows the lubricating oil to enter the slide rail 401 through the oil injection pipe 402. The lubricating oil is then diverted by the triangular diverter block 403 and comes into contact with the outer surface of the guide member 404. This allows the lubricating oil to come into contact with the inner wall of the slide rail 401 through the guide member 404. The lubricating oil then flows downwards towards the inner wall of the slide rail 401 through the inclined protrusion 405, allowing the lubricating oil to come into contact with both sides of the cutting blade 3. This ensures that both sides of the cutting blade 3 are well lubricated, allowing the cutting blade 3 to move more stably.

[0027] Furthermore, when the oil filling pipe 402 is not in use, the protective sleeve 501 is installed at the end of the oil filling pipe 402. The protective sleeve 501 is threaded to the end of the oil filling pipe 402. This allows the elastic force of the spring 502 to push the top block 503, causing the top block 503 to be inserted into the oil filling pipe 402. This causes the outer surface of the sealing ring 504 to come into contact with the inner wall of the oil filling pipe 402, which can effectively prevent debris and dust from entering the interior of the oil filling pipe 402.

[0028] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A gantry shear with a blade holder balancing mechanism, comprising a mounting frame (1), wherein a hydraulic telescopic rod (2) is fixedly connected to the top of the mounting frame (1), and a cutting blade (3) is fixedly connected to the end of the hydraulic telescopic rod (2), characterized in that: The mounting bracket (1) has a lubrication assembly (4) on its inner wall side, the lubrication assembly (4) including: The slide rail (401) is fixedly connected to the inner wall side of the mounting bracket (1). The front of the slide rail (401) is fixedly connected to the oil injection pipe (402), and the inner wall of the oil injection pipe (402) is fixedly connected to the diverter block (403). A guide (404) is fixedly connected to the inner wall side of the slide rail (401), and a protrusion (405) is fixedly connected to the inner wall of the slide rail (401).

2. A gantry shear with a blade holder balancing mechanism according to claim 1, characterized in that: The diverter block (403) is arranged in a triangular shape, and the center of the diverter block (403) corresponds to the center of the diverter block (403).

3. A gantry shear with a blade holder balancing mechanism according to claim 1, characterized in that: The protrusions (405) are arranged at an angle, and the protrusions (405) are evenly distributed in a linear array on the inner wall side of the slide rail (401).

4. A gantry shear with a blade holder balancing mechanism according to claim 1, characterized in that: The number of guides (404) is two, and the two guides (404) are symmetrically arranged at the center of the slide rail (401). The size of the guides (404) is adapted to the size of the slide rail (401).

5. A gantry shear with a blade holder balancing mechanism according to claim 1, characterized in that: An auxiliary component (5) is provided on the outer surface of the oil injection pipe (402). The auxiliary component (5) includes a protective sleeve (501). The protective sleeve (501) is threadedly connected to the outer surface of the oil injection pipe (402). A spring (502) is fixedly connected to the inner wall side of the protective sleeve (501). A top block (503) is fixedly connected to the end of the spring (502). A sealing ring (504) is fixedly connected to the outer surface of the top block (503).

6. A gantry shear with a blade holder balancing mechanism according to claim 5, characterized in that: The top block (503) is convex, and the size of the top block (503) is adapted to the size of the oil injection pipe (402).

7. A gantry shear with a blade holder balancing mechanism according to claim 5, characterized in that: The size of the protective sleeve (501) is adapted to the size of the oil injection pipe (402), and the center of the protective sleeve (501) corresponds to the center of the top block (503).

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