Hydraulic gantry shears with protective structure

By introducing a lifting rail and guard plate structure into the hydraulic gantry shear, the problems of cutter wear and offset are solved, achieving higher cutting accuracy and production safety, and reducing maintenance costs.

CN224294781UActive Publication Date: 2026-05-29HEBEI CUIGU RENEWABLE RESOURCES DEVELOPMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI CUIGU RENEWABLE RESOURCES DEVELOPMENT CO LTD
Filing Date
2025-07-15
Publication Date
2026-05-29

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Abstract

The utility model relates to hydraulic gantry shears technical field especially with the hydraulic gantry shears with protection structure, including the gantry subassembly, still including the shearing subassembly, base subassembly, the inside setting of gantry subassembly has the shearing subassembly, the below setting of shearing subassembly has base subassembly, the gantry subassembly includes gantry, lift track, the shearing subassembly includes the lower pressure block, piston rod, piston pipe, hydraulic oil cylinder, fender, first shearing block, the base subassembly includes base, second shearing block, the utility model discloses the first shearing block of the central scissors position rear end setting of lower pressure block comes with second shearing block opposite movement and realizes shearing processing work, since the main cutting part is all replaceable component, thereby makes the maintenance cost of shearing part greatly reduces, cooperates the setting of fender and effectively prevents the problem that the material splashes back when first shearing block and second shearing block cut the material, thereby reduces the production and processing safety in the feeding direction behind the equipment.
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Description

Technical Field

[0001] This utility model relates to the field of hydraulic gantry shear technology, and in particular to a hydraulic gantry shear with a protective structure. Background Technology

[0002] With increasing environmental awareness, enterprises are continuously increasing their investment in resource recycling technologies. Hydraulic gantry shears, due to their ability to meet high-pressure processing requirements, are widely used in various resource recycling scenarios. They can efficiently cut materials such as scrap metal, significantly improving recycling efficiency.

[0003] When cutting materials, the scissor structure lacks lifting and limiting protection structures on both sides of the cutter. During long-term and frequent cutting operations, the cutter is continuously subjected to the reaction force of the material and the friction generated by its own movement, making it prone to wear. Once the cutter wears down, without effective limiting protection, the cutter structure is prone to deviation and wobbling. This not only reduces cutting accuracy, resulting in the cut material not meeting the required size and affecting subsequent processing, but may also cause the cutter to collide with other parts of the equipment, further aggravating equipment wear, increasing maintenance costs and downtime, and seriously affecting production efficiency and enterprise economic benefits. Utility Model Content

[0004] To overcome the problem that existing hydraulic gantry shears, due to the lack of lifting and limiting protection structures on both sides of the cutting blade structure during material cutting, are prone to blade misalignment and wobbling under prolonged use and wear, this utility model provides a hydraulic gantry shear with a protective structure.

[0005] The technical solution is as follows: A hydraulic gantry shear with a protective structure includes a gantry assembly, a shearing assembly, and a base assembly; the shearing assembly is installed inside the gantry assembly; the base assembly is installed below the shearing assembly; the gantry assembly includes a gantry frame and a lifting rail; the shearing assembly includes a lowering block, a piston rod, a piston tube, a hydraulic cylinder, a guard plate, and a first shearing block; the base assembly includes a base and a second shearing block.

[0006] Furthermore, lifting rails are provided on both sides of the inner wall of the gantry frame, and the lifting rails are fixedly connected to the gantry frame; a pressure block is provided inside the gantry frame; a hydraulic cylinder is provided at the upper end of the gantry frame, and the output end of the hydraulic cylinder drives the pressure block to rise and fall.

[0007] Furthermore, a first shearing block is provided at the rear end of the central scissor position of the pressing block, and the first shearing block is fixedly connected to the pressing block.

[0008] Furthermore, a base is provided below the pressure block, and the base is integrally formed with the gantry frame; a second shearing block is provided on the front end face of the base, and the second shearing block is fixedly connected to the base.

[0009] Furthermore, a guard plate is provided at the rear end of the lower pressure block, and the guard plate is fixedly connected to the lower pressure block. The guard plate is vertically connected and lifted along the movable groove of the lifting track.

[0010] Furthermore, piston rods are provided at the upper end of the guard plate and the upper end of the lower pressure block, and the piston rods are connected to the flanges of the guard plate and the lower pressure block.

[0011] Furthermore, a piston tube is provided at the upper end of the gantry frame, and the piston rod is connected to the piston in the piston tube for piston lifting and lowering.

[0012] The beneficial effects are: This utility model achieves shearing processing by moving the first shearing block relative to the second shearing block at the rear end of the center shearing position of the lower pressure block. Since the main cutting parts are all replaceable components, the maintenance cost of the shearing parts is greatly reduced. With the setting of the guard plate, the problem of material breaking and splashing backward when the first and second shearing blocks shear the material is effectively prevented, thereby reducing the safety of production processing in the rear feeding direction of the equipment.

[0013] By setting up lifting rails and guard plates, the guard plates move along the lifting rails during the lifting process, thereby effectively improving the lifting and adjustment stability of the guard plates and the lower pressure block, and preventing horizontal swaying between the lower pressure block and the guard plates. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the overall bottom-view three-dimensional structure of this utility model;

[0016] Figure 3 This is a schematic diagram of the overall rear-view three-dimensional structure of this utility model;

[0017] Figure 4 This is a three-dimensional cross-sectional view of the present invention.

[0018] Figure 5 This is a rear view three-dimensional structural diagram of the overall cross-section of this utility model.

[0019] In the attached drawings, the following are the reference numerals: 1. Gantry assembly; 2. Shear assembly; 3. Base assembly; 101. Gantry frame; 102. Lifting rail; 201. Lowering block; 202. Piston rod; 203. Piston tube; 204. Hydraulic cylinder; 205. Guard plate; 206. First shear block; 301. Base; 302. Second shear block. Detailed Implementation

[0020] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0021] Example 1

[0022] like Figures 1-5 As shown, the hydraulic gantry shear with a protective structure includes a gantry assembly 1, a shearing assembly 2, and a base assembly 3. The shearing assembly 2 is disposed inside the gantry assembly 1. The base assembly 3 is disposed below the shearing assembly 2. The gantry assembly 1 includes a gantry frame 101 and a lifting rail 102. The shearing assembly 2 includes a lowering block 201, a piston rod 202, a piston tube 203, a hydraulic cylinder 204, a guard plate 205, and a first shearing block 206. The base assembly 3 includes a base 301 and a second shearing block 302.

[0023] Both sides of the inner wall of the gantry frame 101 are provided with lifting rails 102, and the lifting rails 102 are fixedly connected to the gantry frame 101; a lowering block 201 is provided inside the gantry frame 101; a hydraulic cylinder 204 is provided at the upper end of the gantry frame 101, and the output end of the hydraulic cylinder 204 drives the lowering block 201 to lift and connect.

[0024] A first shearing block 206 is provided at the rear end of the central scissor position of the pressing block 201, and the first shearing block 206 is fixedly connected to the pressing block 201.

[0025] A base 301 is provided below the pressure block 201, and the base 301 is integrally formed with the gantry frame 101; a second shearing block 302 is provided on the front end face of the base 301, and the second shearing block 302 is fixedly connected to the base 301.

[0026] The rear end of the lower pressure block 201 is provided with a guard plate 205, and the guard plate 205 is fixedly connected to the lower pressure block 201. The guard plate 205 is vertically connected and lifted along the movable groove of the lifting rail 102.

[0027] The shearing process is achieved by the relative movement of the first shearing block 206, which is located at the rear end of the center shear position of the lower pressure block 201, and the second shearing block 302. Since the main cutting parts are all replaceable components, the maintenance cost of the shearing parts is greatly reduced. With the setting of the guard plate 205, the problem of material fragmentation and splashing backward when the first shearing block 206 and the second shearing block 302 shear the material is effectively prevented, thereby reducing the safety of production and processing in the rear feeding direction of the equipment.

[0028] Example 2

[0029] Based on Example 1, such as Figures 1-5 As shown, piston rods 202 are provided at the upper end of the guard plate 205 and the upper end of the lower pressure block 201, and the piston rods 202 are connected to the flanges of the guard plate 205 and the lower pressure block 201.

[0030] A piston tube 203 is provided at the upper end of the gantry frame 101, and the piston rod 202 is connected to the piston in the piston tube 203 for lifting and lowering.

[0031] By setting up the lifting rail 102 and the guard plate 205, when the guard plate 205 is lifted, it moves along the lifting rail 102 to limit the lifting movement, thereby effectively improving the lifting and adjusting stability of the guard plate 205 and the lower pressure block 201, and preventing the lower pressure block 201 and the guard plate 205 from swaying horizontally.

Claims

1. A hydraulic gantry shear with a protective structure, comprising a gantry assembly (1), characterized in that: It also includes a shearing assembly (2) and a base assembly (3); the shearing assembly (2) is installed inside the gantry assembly (1); the base assembly (3) is installed below the shearing assembly (2); the gantry assembly (1) includes a gantry frame (101) and a lifting rail (102); the shearing assembly (2) includes a lowering block (201), a piston rod (202), a piston tube (203), a hydraulic cylinder (204), a guard plate (205), and a first shearing block (206); the base assembly (3) includes a base (301) and a second shearing block (302).

2. The hydraulic gantry shear with protective structure according to claim 1, characterized in that: The inner walls of the gantry (101) are provided with lifting rails (102) on both sides, and the lifting rails (102) are fixedly connected to the gantry (101); the gantry (101) is provided with a lowering block (201) inside; the upper end of the gantry (101) is provided with a hydraulic cylinder (204), and the output end of the hydraulic cylinder (204) drives the lowering block (201) to lift and connect.

3. The hydraulic gantry shear with a protective structure according to claim 2, characterized in that: The lower pressure block (201) has a first shearing block (206) at the rear end of the center scissor position, and the first shearing block (206) is fixedly connected to the lower pressure block (201).

4. The hydraulic gantry shear with a protective structure according to claim 2, characterized in that: A base (301) is provided below the pressure block (201), and the base (301) is integrally formed with the gantry frame (101); a second shearing block (302) is provided on the front end face of the base (301), and the second shearing block (302) is fixedly connected to the base (301).

5. The hydraulic gantry shear with a protective structure according to claim 2, characterized in that: The rear end of the pressure block (201) is provided with a guard plate (205), and the guard plate (205) is fixedly connected to the pressure block (201). The guard plate (205) is vertically connected and lifted along the movable groove of the lifting rail (102).

6. The hydraulic gantry shear with a protective structure according to claim 5, characterized in that: A piston rod (202) is provided at the upper end of the guard plate (205) and the upper end of the lower pressure block (201), and the piston rod (202) is connected to the flange of the guard plate (205) and the lower pressure block (201).

7. The hydraulic gantry shear with a protective structure according to claim 1, characterized in that: A piston tube (203) is provided at the upper end of the gantry frame (101), and the piston rod (202) is connected to the piston in the piston tube (203) for lifting and lowering.