Hydraulic shear upper and lower blade parallelism adjusting structure and hydraulic shear

Abstract

The utility model relates to the technical field of hydraulic shears, in particular to a parallelism adjusting structure for an upper blade and a lower blade of hydraulic shears and the hydraulic shears, which comprises a fixed jaw and a movable jaw, the movable jaw is rotatably connected with the fixed jaw, an upper blade is arranged on the movable jaw, a lower blade matched with the upper blade is arranged on the fixed jaw, and a screw is in threaded connection with the inside of the fixed jaw. The screw abuts against the side wall of the movable jaw so as to adjust the distance between the upper cutting edge and the lower cutting edge. According to the structure for adjusting the parallelism of the upper blade and the lower blade of the hydraulic shear, the screw abuts against the movable jaw, the position of the movable jaw can be adjusted, then the distance between the upper blade and the lower blade is adjusted, a proper gap is kept between the upper blade and the lower blade, the shearing effect is guaranteed, meanwhile, the screw can be adjusted repeatedly, and the service life of the hydraulic shear is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic shearing technology, and in particular to a hydraulic shearing upper and lower blade parallelism adjustment structure and hydraulic shears. Background Technology

[0002] Hydraulic shears are tools that use hydraulic principles to perform cutting operations, primarily used for cutting metal and other materials. The design of hydraulic shears resembles a large mouth, capable of biting through metal and other materials used in vehicles.

[0003] However, during continuous use, the two blades of the hydraulic component are subjected to a large load, which causes the connection structure between the two blades to deform, resulting in an increased gap between the two blades and affecting their shearing effect. Utility Model Content

[0004] The technical problem to be solved by this utility model is: In order to solve the technical problems in the prior art, this utility model provides a hydraulic shears upper and lower blade parallelism adjustment structure and hydraulic shears.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a hydraulic scissor upper and lower blade parallelism adjustment structure, including a fixed jaw and a movable jaw, the movable jaw being rotatably connected to the fixed jaw, the movable jaw being provided with an upper blade, the fixed jaw being provided with a lower blade that cooperates with the upper blade, the fixed jaw being internally threaded with a screw rod, the screw rod abutting against the side wall of the movable jaw to adjust the distance between the upper blade and the lower blade.

[0006] The parallelism adjustment structure of the upper and lower blades of the hydraulic scissors of this utility model can adjust the position of the moving jaw by abutting the screw with the moving jaw, thereby adjusting the distance between the upper and lower blades, so that the upper and lower blades maintain a suitable gap, thus ensuring the cutting effect.

[0007] Furthermore, a wear-resistant pad is connected to the screw, and a wear-resistant sheet is detachably connected to the wear-resistant pad, the wear-resistant sheet abutting against the side wall of the moving jaw.

[0008] Furthermore, the movable jaw is located inside the fixed jaw, and two sets of screws and wear-resistant plates are provided, located on both sides of the movable jaw.

[0009] Furthermore, the movable jaw is provided with an anti-loosening component, which is connected to the screw to prevent the screw from rotating.

[0010] Furthermore, the anti-loosening component is provided with a limiting hole, and the end of the screw away from the wear-resistant pad is connected to a limiting part. The limiting hole is adapted to the limiting part, and the cross-section of the limiting part is non-circular.

[0011] Furthermore, the cross-section of the limiting part is rectangular.

[0012] Furthermore, the side wall of the limiting hole is provided with a corner groove for engaging with the corner of the limiting part. There are two sets of corner grooves, and the two sets of corner grooves are spaced 45 degrees apart.

[0013] Furthermore, the anti-loosening component is connected to the fixed jaw via fasteners.

[0014] Furthermore, the fastener is a bolt, and the anti-loosening component is fixed to the fixed jaw by the bolt.

[0015] Furthermore, a hydraulic shear includes the aforementioned hydraulic shear upper and lower blade parallelism adjustment structure.

[0016] The beneficial effects of this utility model are:

[0017] 1. By abutting the screw against the moving jaw, the position of the moving jaw can be adjusted, thereby adjusting the distance between the upper and lower cutting edges to maintain a suitable gap between the upper and lower cutting edges, thus ensuring the shearing effect. At the same time, the screw can be repeatedly adjusted to extend the service life of the hydraulic shears.

[0018] 2. The use of wear-resistant pads and wear-resistant sheets can reduce wear between the screw and the moving jaw.

[0019] 3. The cooperation between the limiting part and the limiting hole can prevent the gap between the upper and lower cutting edges from widening due to the rotation of the bolt. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] Figure 1 This is a schematic diagram of the overall structure of the hydraulic scissors' upper and lower blade parallelism adjustment structure in this utility model.

[0022] Figure 2 This is a schematic diagram illustrating the screw and wear-resistant pad in this utility model.

[0023] Figure 3 This is a schematic diagram illustrating the anti-loosening component in this utility model.

[0024] Figure 4 yes Figure 1 A magnified view of part A in the middle.

[0025] In the diagram: 1. Fixed jaw; 11. Lower cutting edge; 12. Screw; 121. Limiting part; 13. Wear-resistant pad; 131. Wear-resistant plate; 132. Threaded hole; 14. Anti-loosening part; 141. Limiting hole; 142. Angle groove; 143. Fastener; 2. Moving jaw; 21. Upper cutting edge. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, illustrating only the basic structure of the present invention, and therefore only show the components relevant to the present invention.

[0027] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0028] This utility model discloses a structure for adjusting the parallelism of the upper and lower blades of hydraulic scissors.

[0029] Reference Figure 1 and Figure 2 A hydraulic shear blade parallelism adjustment structure includes a fixed jaw 1 and a movable jaw 2, which are rotatably connected to the fixed jaw 1. The movable jaw 2 is provided with an upper blade 21, and the fixed jaw 1 is provided with a lower blade 11 that mates with the upper blade 21. A screw 12 is internally threaded onto the fixed jaw 1, and the screw 12 abuts against the side wall of the movable jaw 2 to adjust the distance between the upper blade 21 and the lower blade 11. By abutting against the movable jaw 2 with the screw 12, the position of the movable jaw 2 can be adjusted, thereby adjusting the distance between the upper blade 21 and the lower blade 11, ensuring a suitable gap between them and guaranteeing the shearing effect.

[0030] A wear-resistant pad 13 is fixedly connected to the screw 12, and a wear-resistant plate 141 is detachably connected to the wear-resistant pad 13. The wear-resistant plate 141 abuts against the side wall of the movable jaw 2. The movable jaw 2 is located inside the fixed jaw 1. There are two sets of screw 12 and wear-resistant plates 131, located on both sides of the movable jaw 2. The wear-resistant plate 131 and the wear-resistant pad 13 can be an interference fit. The wear-resistant pad 13 has a threaded hole 132, which facilitates the replacement of the wear-resistant plate 131 by pushing it out of the wear-resistant pad 13.

[0031] Furthermore, the moving jaw 2 is provided with an anti-loosening component 14, which is connected to the screw 12 to prevent the screw 12 from rotating.

[0032] Specifically, the anti-loosening component 14 is provided with a limiting hole 141, and the end of the screw 12 away from the wear-resistant pad 13 is connected to the limiting part 121. The limiting hole 141 is adapted to the limiting part 121, and the cross section of the limiting part 121 is non-circular.

[0033] In this embodiment, the cross-section of the limiting part 121 is rectangular. The side wall of the limiting hole 141 is provided with corner grooves 142 for engaging with the corners of the limiting part 121. There are two sets of corner grooves 142, and the two sets of corner grooves 142 are spaced 45 degrees apart.

[0034] Furthermore, the anti-loosening component 14 is connected to the fixed jaw 1 via fasteners 143. The fasteners 143 are bolts, and the anti-loosening component 14 is fixed to the fixed jaw 1 by bolts. In this embodiment, four bolts are provided.

[0035] Working principle: By abutting against the movable jaw 2, the position of the movable jaw 2 can be adjusted, thereby adjusting the distance between the upper cutting edge 21 and the lower cutting edge 11. This ensures a suitable gap between the upper and lower cutting edges 21, guaranteeing the shearing effect. Simultaneously, the screw 12 can be repeatedly adjusted, extending the service life of the hydraulic shears. The wear-resistant pad 13 reduces wear between the screw 12 and the movable jaw 2. The engagement of the limiting part 121 and the limiting hole 141 prevents the gap between the upper and lower cutting edges 21 from widening due to bolt rotation.

[0036] A hydraulic shear includes the aforementioned hydraulic shear upper and lower blade parallelism adjustment structure.

[0037] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A hydraulic shear upper and lower blade parallelism adjustment structure, characterized by, Including fixed jaw (1) and moving jaw (2), the moving jaw (2) is rotatably connected with the fixed jaw (1), the moving jaw (2) is provided with upper blade (21), the fixed jaw (1) is provided with lower blade (11) matched with upper blade (21), the fixed jaw (1) is screw threaded with screw rod (12), the screw rod (12) is abutted with the side wall of moving jaw (2), to adjust the distance between upper blade (21) and lower blade (11).

2. The hydraulic shear upper and lower blade (11) parallelism adjustment structure according to claim 1, characterized in that, The screw rod (12) is connected with wear pad (13), the wear pad (13) is detachably connected with wear plate (131), the wear plate (131) is abutted with the side wall of moving jaw (2).

3. The hydraulic shear upper and lower blade (11) parallelism adjustment structure according to claim 2, characterized in that, The moving jaw (2) is arranged in the fixed jaw (1), the screw rod (12) and the wear plate are provided with two groups and are located on both sides of the moving jaw (2).

4. The hydraulic shear upper and lower blade (11) parallelism adjustment structure according to claim 2, characterized in that, The moving jaw (2) is provided with anti-loosening piece (14), the anti-loosening piece (14) is connected with the screw rod (12), to prevent the screw rod (12) from rotating.

5. The hydraulic shear upper and lower blade (11) parallelism adjustment structure according to claim 4, characterized in that, The anti-loosening piece (14) is provided with limiting hole (141), one end of the screw rod (12) away from the wear pad (13) is connected with limiting portion (121), the limiting hole (141) is matched with the limiting portion (121), and the cross section of the limiting portion (121) is non-circular.

6. The hydraulic shear upper and lower blade (11) parallelism adjustment structure according to claim 5, characterized in that, The cross section of the limiting portion (121) is rectangular.

7. The hydraulic shear upper and lower blade (11) parallelism adjustment structure according to claim 6, characterized in that, The side wall of the limiting hole (141) is provided with corner groove (142) matched with the corner of the limiting portion (121), the corner groove (142) is provided with two groups, and the two groups of corner grooves (142) are spaced apart by 45 degrees.

8. The hydraulic shear upper and lower blade (11) parallelism adjustment structure according to claim 7, characterized in that, The anti-loosening piece (14) is connected with the fixed jaw (1) through fastener (143).

9. The hydraulic shear upper and lower blade (11) parallelism adjustment structure according to claim 8, characterized in that, The fastener (143) is bolt, and the anti-loosening piece (14) is fixed on the fixed jaw (1) through the bolt.

10. A hydraulic shear characterized by, The hydraulic shear upper and lower blade (11) parallelism adjusting structure of any one of claims 1-9 is included.

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