Hydraulic shearing structure
By setting a receiving groove in the middle of the left clamp arm of the hydraulic shear and using an inclined limiting block, the problems of clamp arm interference and collision in traditional hydraulic shears are solved, achieving precise cutting and extended service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GUANGDONG JUNHONG ENVIRONMENTAL PROTECTION RECYCLING CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-24
AI Technical Summary
In traditional hydraulic shears, the left and right clamp arms are prone to interference and collision during the shearing process, which affects the shearing accuracy and effect and shortens the service life.
The left hydraulic shear assembly is designed with a receiving groove in the middle of the left clamp arm. The right clamp arm can be accommodated in this groove when closed. Combined with the inclined limiting block and wear-resistant plate, the correct trajectory of the clamp arm is ensured, and interference and collision are avoided.
It achieves a smooth shearing process, ensuring precise material cutting, reducing deformation and wear on the clamp arms, and extending service life.
Smart Images
Figure CN224543276U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of hydraulic tool technology, and in particular relates to a hydraulic shear structure. Background Technology
[0002] Hydraulic shears, as a highly efficient cutting tool, are widely used in metal processing, building demolition, and waste recycling. They use hydraulic power to open and close the clamping arms, thereby performing shearing operations on various materials.
[0003] Traditional hydraulic shears typically employ a symmetrical clamp arm structure, where the left and right clamp arms rotate in opposite directions around their respective axes during the shearing process. However, this structure presents several drawbacks in practical use: when shearing thinner or softer materials, the left and right clamp arms are prone to interference during the closing process; and when shearing harder materials, the deformation caused by the material's stress can lead to clamp arm displacement, easily resulting in direct collision between the left and right clamp arms.
[0004] Such interference and collisions not only affect the cutting accuracy and effect, leading to incomplete material cutting or unnecessary deformation, but also exacerbate the wear of the clamp arm and shorten the service life of the hydraulic shears. Utility Model Content
[0005] The purpose of this invention is to provide a hydraulic shear structure that aims to solve the technical problem that the left and right clamp arms of the existing hydraulic shears are prone to interference and collision during the shearing process.
[0006] To achieve the above objectives, the hydraulic shear structure provided in this utility model embodiment includes a fixing mechanism, a support base, and a hydraulic shear mechanism. The support base is disposed on the fixing mechanism, and the hydraulic shear mechanism is movably disposed on the support base.
[0007] The hydraulic shear mechanism includes a left hydraulic shear assembly and a right hydraulic shear assembly. The left hydraulic shear assembly is movably disposed on one side of the support base, and the right hydraulic shear assembly is movably disposed on the other side of the support base.
[0008] The left hydraulic shear assembly includes a left hydraulic cylinder, a left clamp arm, and a left arm pivot. The left hydraulic cylinder is rotatably connected to the support base and the left clamp arm, and is used to drive the left clamp arm to rotate along the left arm pivot. The left clamp arm is fixed to the left arm pivot and is located on one side of the right hydraulic shear assembly. The left arm pivot is movably inserted through the support base. A receiving groove is provided in the middle of the left clamp arm.
[0009] The right hydraulic shear assembly includes a right hydraulic cylinder, a right clamp arm, and a right arm pivot. The right hydraulic cylinder is rotatably connected to the support base and the right clamp arm. The right hydraulic cylinder drives the right clamp arm to rotate along the right arm pivot and can drive the right clamp arm to be accommodated in the receiving groove. The right clamp arm is fixed to the right arm pivot and is located on one side of the left hydraulic shear assembly. The right arm pivot is movably inserted through the support base.
[0010] As an optional embodiment of this invention, the receiving groove is arranged to coincide with the right clamp arm.
[0011] As an optional solution of this utility model, a left limiting block is provided at one end of the left clamp arm. There are two left limiting blocks, which are arranged in parallel and spaced apart. The left limiting blocks are fixedly connected to the left clamp arm in an inclined shape.
[0012] As an optional solution of this utility model, a left wear-resistant plate is provided on one side of the left clamp arm, and multiple left wear-resistant plates are provided, all of which are fixedly connected to the left clamp arm.
[0013] As an optional solution of this utility model, a right limiting block is provided at one end of the right clamp arm, and the right limiting block is fixedly connected to the right clamp arm in an inclined shape.
[0014] As an optional solution of this utility model, a right wear-resistant plate is provided on one side of the right clamp arm, and multiple right wear-resistant plates are provided, all of which are fixedly connected to the right clamp arm.
[0015] As an optional solution of this utility model, the fixing mechanism includes a fixing plate, a fixing disk, a limiting disk, and a limiting bolt. The fixing plate is fixedly connected to the fixing disk, and the fixing plate is provided with a fixing hole. The limiting disk is disposed on the fixing disk, and the limiting bolt is threadedly connected to the limiting disk and the fixing disk in sequence. The support base is fixedly connected to the limiting disk.
[0016] The hydraulic shear structure provided in this embodiment of the present invention has at least one of the following technical effects:
[0017] The hydraulic shear structure provided in this application solves the problem of interference and collision between the left and right clamp arms during the shearing process in traditional hydraulic shears by setting a receiving groove in the middle of the left clamp arm. When the hydraulic shear is closed, the right clamp arm can be accommodated in the receiving groove, ensuring smooth shearing operation. By avoiding interference and collision between the clamp arms, the left and right clamp arms can always maintain the correct shearing trajectory, ensuring that the material is accurately sheared and reducing problems such as incomplete shearing or material deformation caused by interference. It also reduces direct collision and friction between the clamp arms, improving service life. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 A perspective view of the hydraulic shear structure provided for an embodiment of this utility model.
[0020] Figure 2 A perspective view of the hydraulic shear structure provided for an embodiment of this utility model.
[0021] Figure 3 A side view of the hydraulic shear structure provided in an embodiment of this utility model.
[0022] Figure 4 for Figure 3 Sectional view along the middle AA.
[0023] The following are the labeling elements in the figure:
[0024] 1. Fixing mechanism; 2. Support base; 3. Left hydraulic shear assembly; 4. Right hydraulic shear assembly;
[0025] 11. Fixing plate; 12. Fixing disc; 13. Limiting disc; 14. Limiting bolt;
[0026] 31. Left hydraulic cylinder; 32. Left clamp arm; 33. Left arm pivot;
[0027] 41. Right hydraulic cylinder; 42. Right clamp arm; 43. Right arm pivot;
[0028] 111. Fixing hole;
[0029] 321. Receiving groove; 322. Left limiting block; 323. Left wear-resistant plate;
[0030] 421. Right limit block; 422. Right wear-resistant plate. Detailed Implementation
[0031] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the embodiments of this utility model, and should not be construed as limiting the utility model.
[0032] In the description of the embodiments of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing the embodiments of 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. Therefore, they should not be construed as limitations on this utility model.
[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0034] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0035] In one embodiment of this utility model, such as Figures 1-4 As shown, a hydraulic shear structure is provided, comprising a fixing mechanism 1, a support base 2, and a hydraulic shear mechanism. The support base 2 is fixedly mounted on the fixing mechanism 1, and the hydraulic shear mechanism is movably mounted on the support base 2 via a rotating shaft, allowing for flexible rotation.
[0036] The hydraulic shear mechanism includes a left hydraulic shear assembly 3 and a right hydraulic shear assembly 4, which are movably installed on both sides of the support base 2 and are symmetrically distributed.
[0037] The left hydraulic shear assembly 3 mainly consists of a left hydraulic cylinder 31, a left clamp arm 32, and a left arm rotating shaft 33. The cylinder body of the left hydraulic cylinder 31 is rotatably connected to the left ear plate of the support base 2 via a pin, and its piston rod is rotatably connected to one end of the left clamp arm 32 via a pin. The bottom of the left clamp arm 32 is fixedly sleeved on the left arm rotating shaft 33, which is movably inserted into the support base 2 via bearings. When the left hydraulic cylinder 31 extends or retracts, it drives the left clamp arm 32 to rotate around the left arm rotating shaft 33. A receiving groove 321 is provided along the length of the left clamp arm 32 in the middle. The shape and size of this receiving groove 321 match those of the right clamp arm 42, and it is used to accommodate the right clamp arm 42 when the shearing is closed.
[0038] The right hydraulic shear assembly 4 is structurally similar to the left hydraulic shear assembly 3, including a right hydraulic cylinder 41, a right clamping arm 42, and a right arm pivot 43. The cylinder body of the right hydraulic cylinder 41 is rotatably connected to the right ear plate of the support base 2 via a pin, and its piston rod is rotatably connected to one end of the right clamping arm 42 via a pin. The middle part of the right clamping arm 42 is fixedly sleeved on the right arm pivot 43, which is movably inserted into the support base 2 via bearings. When the right hydraulic cylinder 41 extends or retracts, it drives the right clamping arm 42 to rotate around the right arm pivot 43. During shearing operations, the right hydraulic cylinder 41 can drive the right clamping arm 42 to precisely enter the receiving groove 321 of the left clamping arm 32, achieving interference-free closure.
[0039] To optimize the shearing effect, two left limiting blocks 322 are fixedly installed at the shearing end of the left clamp arm 32. The two left limiting blocks 322 are parallel and spaced apart to form a limiting space. The left limiting blocks 322 are welded to the left clamp arm 32 at an inclined angle, which is adapted to the force direction during material shearing, effectively preventing the material from slipping during the shearing process. At the same time, multiple left wear-resistant plates 323 are fixedly installed on the side of the left clamp arm 32 that contacts the material by bolts. The left wear-resistant plates 323 are made of high-strength alloy material, which can improve the wear resistance of the left clamp arm 32.
[0040] Correspondingly, a right limiting block 421 is fixedly installed at the shearing end of the right clamp arm 42. The right limiting block 421 is welded to the right clamp arm 42 at an inclined angle, which matches the left limiting block 322 to jointly achieve the function of limiting the material. On the side of the right clamp arm 42 that contacts the material, multiple right wear-resistant plates 422 are also fixedly installed by bolts. The right wear-resistant plates 422 are made of the same high-strength alloy material as the left wear-resistant plate 323 to improve the wear resistance of the right clamp arm 42.
[0041] The fixing mechanism 1 includes a fixing plate 11, a fixing disk 12, a limiting disk 13, and limiting bolts 14. One end of the fixing plate 11 is fixedly connected to the edge of the fixing disk 12 by welding. The fixing plate 11 has fixing holes 111 for fixing the entire hydraulic shear structure to the working equipment or support by bolts. The limiting disk 13 is located above the fixing disk 12, and the two are connected and fixed by multiple limiting bolts 14. The limiting bolts 14 pass through the threaded holes of the limiting disk 13 and the fixing disk 12 in sequence and are tightened. By adjusting the tightness of the limiting bolts 14, the angle of the limiting disk 13 can be finely adjusted, thereby adjusting the working angle of the entire hydraulic shear mechanism. The bottom of the support base 2 is fixedly connected to the upper surface of the limiting disk 13 by bolts.
[0042] The working process of this utility model is as follows:
[0043] The hydraulic shears are installed and fixed on the corresponding working equipment by the fixing plate 11 of the fixing mechanism 1. The limit bolts 14 are adjusted according to the working requirements to determine the appropriate working angle.
[0044] When materials need to be sheared, the left hydraulic cylinder 31 and the right hydraulic cylinder 41 are controlled to move synchronously. The piston rod of the left hydraulic cylinder 31 retracts, driving the left clamp arm 32 to rotate counterclockwise around the left arm pivot 33. The piston rod of the right hydraulic cylinder 41 pulls back, driving the right clamp arm 42 to rotate clockwise around the right arm pivot 43, so that the left clamp arm 32 and the right clamp arm 42 gradually open.
[0045] The material to be cut is placed between the left clamp arm 32 and the right clamp arm 42, and the left limit block 322 and the right limit block 421 initially limit the material.
[0046] The left hydraulic cylinder 31 and the right hydraulic cylinder 41 are controlled to move in opposite directions. The piston rod of the left hydraulic cylinder 31 extends to drive the left clamp arm 32 to rotate clockwise around the left arm pivot 33, and the piston rod of the right hydraulic cylinder 41 extends to drive the right clamp arm 42 to rotate counterclockwise around the right arm pivot 43, so that the left clamp arm 32 and the right clamp arm 42 gradually close and begin to shear the material.
[0047] During the shearing process, as the left clamp arm 32 and the right clamp arm 42 gradually close, the right clamp arm 42 precisely enters the receiving groove 321 of the left clamp arm 32, achieving interference-free shearing until the material is completely cut off.
[0048] After shearing is completed, the left hydraulic cylinder 31 and the right hydraulic cylinder 41 are controlled to drive the clamp arm to open again, and the sheared material is taken out, completing one work cycle.
[0049] The hydraulic shear structure provided in this application solves the problem of interference and collision between the left and right clamp arms 42 during the shearing process by setting a receiving groove 321 in the middle of the left clamp arm 32. When the hydraulic shear is closed, the right clamp arm 42 can be accommodated in the receiving groove 321, thus ensuring smooth shearing operation. By avoiding interference and collision between the clamp arms, the left and right clamp arms 42 can always maintain the correct shearing trajectory, ensuring that the material is accurately sheared and reducing problems such as incomplete shearing or material deformation caused by interference. It also reduces direct collision and friction between the clamp arms, thus improving service life.
[0050] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A hydraulic shear structure, characterized in that, It includes a fixing mechanism, a support base, and a hydraulic shearing mechanism, wherein the support base is disposed on the fixing mechanism, and the hydraulic shearing mechanism is movably disposed on the support base; The hydraulic shear mechanism includes a left hydraulic shear assembly and a right hydraulic shear assembly. The left hydraulic shear assembly is movably disposed on one side of the support base, and the right hydraulic shear assembly is movably disposed on the other side of the support base. The left hydraulic shear assembly includes a left hydraulic cylinder, a left clamp arm, and a left arm pivot. The left hydraulic cylinder is rotatably connected to the support base and the left clamp arm, and is used to drive the left clamp arm to rotate along the left arm pivot. The left clamp arm is fixed to the left arm pivot and is located on one side of the right hydraulic shear assembly. The left arm pivot is movably inserted through the support base. A receiving groove is provided in the middle of the left clamp arm. The right hydraulic shear assembly includes a right hydraulic cylinder, a right clamp arm, and a right arm pivot. The right hydraulic cylinder is rotatably connected to the support base and the right clamp arm. The right hydraulic cylinder drives the right clamp arm to rotate along the right arm pivot and can drive the right clamp arm to be accommodated in the receiving groove. The right clamp arm is fixed to the right arm pivot and is located on one side of the left hydraulic shear assembly. The right arm pivot is movably inserted through the support base.
2. The hydraulic shear structure according to claim 1, characterized in that, The receiving slot is aligned with the right clamp arm.
3. The hydraulic shear structure according to claim 1, characterized in that, A left limiting block is provided at one end of the left clamp arm. There are two left limiting blocks, which are arranged in parallel and spaced apart. The left limiting blocks are fixedly connected to the left clamp arm in an inclined shape.
4. A hydraulic shear structure according to claim 1, characterized in that, A left wear-resistant plate is provided on one side of the left clamp arm. Multiple left wear-resistant plates are provided and are all fixedly connected to the left clamp arm.
5. A hydraulic shear structure according to claim 1, characterized in that, A right limiting block is provided at one end of the right clamp arm, and the right limiting block is fixedly connected to the right clamp arm in an inclined shape.
6. A hydraulic shear structure according to claim 1, characterized in that, A right wear-resistant plate is provided on one side of the right clamp arm. Multiple right wear-resistant plates are provided and are all fixedly connected to the right clamp arm.
7. A hydraulic shear structure according to claim 1, characterized in that, The fixing mechanism includes a fixing plate, a fixing disk, a limiting disk, and a limiting bolt. The fixing plate is fixedly connected to the fixing disk and has a fixing hole. The limiting disk is disposed on the fixing disk, and the limiting bolt is threadedly connected to the limiting disk and the fixing disk in sequence. The support base is fixedly connected to the limiting disk.