Adjustable hydraulic shear

Abstract

The utility model discloses an adjustable hydraulic shear, relates to the technical field of hydraulic shears, and aims to solve the technical problem that the size of the current shearing force is inconvenient to control, the adjustable hydraulic shear comprises a shearing mechanism, a shell mechanism arranged on the outer side of the shearing mechanism and an adjusting mechanism arranged on the shell mechanism, hydraulic equipment is arranged at the rear end of the mounting seat, a piston rod of the hydraulic equipment extends to the front end of the mounting seat and is provided with a mounting head, lever arms are symmetrically and rotatably mounted on the mounting head, and shearing plates are rotatably mounted at the tail ends of the lever arms; the adjusting mechanism comprises an adjusting plate arranged on the outer surface of the mounting plate and a sensing plate arranged at the side end of the mounting head. The device has the advantages that shearing force is accurately controlled through the adjusting mechanism, the induction plate moves along with the mounting head to trigger the induction switch, the stroke of the piston rod can be changed by adjusting the position of the induction switch, cinder ladles with different hardness and sizes can be adapted, and efficiency and applicability are improved.

Description

Technical Field

[0001] This utility model relates to the field of hydraulic shearing technology, and more specifically, to an adjustable hydraulic shear. Background Technology

[0002] Hydraulic shears are tools that utilize hydraulic transmission principles to achieve powerful shearing, and are widely used in industry, rescue, construction, and other fields. Their core components consist of a hydraulic pump, a hydraulic cylinder, and shearing blades. High-pressure energy is transmitted through hydraulic oil, causing the blades to generate tremendous shearing force, easily cutting hard materials such as metal, reinforcing bars, and pipes. Their advantages include high shearing efficiency, labor-saving operation, and replaceable blades to adapt to different shearing scenarios. Hydraulic shears are commonly used to remove slag sacks generated in industrial production, such as foundry slag sacks and steelmaking slag sacks. Whether it's foundry slag sacks at high temperatures or extremely hard steelmaking slag sacks, they can be efficiently processed thanks to their powerful shearing force.

[0003] Currently, hydraulic shears operate by controlling the shearing process using hydraulic equipment. However, the magnitude of the shearing force is difficult to control. When processing slag bales of varying hardness and size, a fixed shearing force has drawbacks. Either excessive shearing force leads to excessive damage to the material being sheared or accelerated blade wear, or insufficient shearing force prevents the shearing operation from being completed, thus affecting work efficiency. Therefore, we propose an adjustable hydraulic shear. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology, adapt to practical needs, and provide an adjustable hydraulic shear to solve the technical problem of the inconvenience in controlling the magnitude of the current shearing force.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an adjustable hydraulic shear, including a shearing mechanism, a housing mechanism disposed outside the shearing mechanism, and an adjustment mechanism disposed on the housing mechanism. The shearing mechanism includes a mounting base, a hydraulic device disposed at the rear end of the mounting base, a piston rod of the hydraulic device extending to the front end of the mounting base and disposed on a mounting head, a lever arm symmetrically and rotatably mounted on the mounting head, a shearing plate rotatably mounted at the end of the lever arm, a mounting groove being formed on the shearing plate, and a shearing blade being mounted in the mounting groove. The housing mechanism includes a rear housing, upper and lower housings, a side housing, and a mounting plate. The adjustment mechanism includes an adjustment plate disposed on the outer surface of the mounting plate and a sensing plate disposed on the side end of the mounting head.

[0006] Preferably, the rear housing, upper and lower housings, and side housings are all bolted to the mounting base. The hydraulic equipment is located inside the rear housing. The upper and lower housings and side housings constitute a box structure. The rear part of the shearing plate is located inside the box structure. The upper end of the mounting base is provided with a lifting ring extending out of the housing mechanism.

[0007] Preferably, positioning posts are symmetrically arranged on the shear plate, and positioning grooves are symmetrically arranged on the inner wall of the side shell, with the positioning posts inserted into the positioning grooves.

[0008] Preferably, the outer surface of the side housing is provided with a mounting plate by bolts, and the upper and lower housings are also connected to the mounting plate by bolts. The outer surface of the mounting plate is provided with a fixing seat by bolts.

[0009] Preferably, the adjusting plate is L-shaped, and the adjusting plate is provided with an oblong hole. A sensor switch is symmetrically arranged in the oblong hole. Both the side housing and the mounting plate are provided with movable openings, and the sensor switch extends from the movable opening into the housing mechanism.

[0010] Preferably, the sensing plate is U-shaped, the height of the sensing plate is the same as the height of the induction switch, and the tail of the sensing plate is close to the detection head of the induction switch.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This invention features an adjustable plate structure. The induction plate in the adjusting mechanism moves synchronously with the mounting head. When the induction plate approaches induction switches at different positions, the induction switches can promptly trigger signals to control the hydraulic equipment to stop operating, thereby limiting the extension and retraction stroke of the piston rod. The induction switches can be flexibly adjusted within the oblong hole of the adjusting plate. By changing the distance between the two induction switches, the extension and retraction amplitude of the piston rod can be precisely adjusted, thus achieving on-demand adjustment of the shearing force. This design enables the hydraulic shears to handle materials such as slag bags of different hardness and size, avoiding excessive damage to the sheared material or accelerated blade wear due to excessive shearing force, while also preventing the inability to complete the shearing operation due to insufficient shearing force. This significantly improves the efficiency and applicability of shearing operations and solves the current problem of inconvenient control of shearing force.

[0013] This invention utilizes the interplay between the positioning pins on the shearing plate and the positioning grooves on the inner wall of the side housing to provide stable positioning for the shearing plate without affecting its rotation, thus ensuring the accuracy of the shearing action. The lifting rings on the mounting base facilitate the hoisting and movement of the hydraulic shears, while the fixed base allows for easy installation of the hydraulic shears on different working devices, enhancing the equipment's versatility and ease of operation. The shearing blades are installed via mounting grooves, making blade replacement more convenient and quick. Suitable blades can be flexibly replaced according to different shearing needs, further expanding the application range of the hydraulic shears.

[0014] 3. This utility model also designs a rear shell, upper and lower shells and side shell structure. The mechanism formed by the rear shell, upper and lower shells and side shells provides reliable protection for the shearing mechanism. The rear shell, upper and lower shells and side shells cooperate with each other to wrap the hydraulic equipment and the rear of the shearing plate and other key components. It can effectively block the intrusion of external dust and impurities, reduce the wear of particulate matter on the internal mechanism in the working environment, and at the same time, it can also prevent the debris flying during the shearing operation from damaging the equipment to a certain extent, thus extending the service life of the hydraulic shears. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the present utility model;

[0016] Figure 2 This is a schematic diagram of the rear view structure of this utility model;

[0017] Figure 3 This is an exploded view of the present invention;

[0018] Figure 4 This is a partial exploded view of the present invention;

[0019] Figure 5 This is a cross-sectional structural diagram of the present invention;

[0020] Figure 6 This is a schematic diagram of the adjustment mechanism of this utility model.

[0021] The following are the labels in the diagram: 100, shearing mechanism; 101, mounting base; 1011, lifting ring; 102, hydraulic equipment; 103, mounting head; 104, lever arm; 105, shearing plate; 106, positioning column; 107, mounting groove; 108, shearing blade; 200, housing mechanism; 201, rear housing; 202, upper and lower housings; 203, side housing; 2031, positioning groove; 204, mounting plate; 205, fixed base; 300, adjusting mechanism; 301, adjusting plate; 302, oblong hole; 303, inductive switch; 304, inductive plate. Detailed Implementation

[0022] like Figures 1 to 6As shown, this utility model relates to an adjustable hydraulic shear, including a shearing mechanism 100, a housing mechanism 200 disposed outside the shearing mechanism 100, and an adjustment mechanism 300 disposed on the housing mechanism 200. The shearing mechanism 100 includes a mounting base 101, a hydraulic device 102 disposed at the rear end of the mounting base 101, a mounting head 103 disposed at the front end of the hydraulic device 102 extending to the mounting base 101, a lever arm 104 symmetrically rotatably mounted on the mounting head 103, a shearing plate 105 rotatably mounted at the end of the lever arm 104, an installation groove 107 opened on the shearing plate 105, and a shearing blade 108 installed in the installation groove 107. The housing mechanism 200 includes a rear housing 201, upper and lower housings 202, a side housing 203, and a mounting plate 204. The adjustment mechanism 300 includes an adjustment plate 301 disposed on the outer surface of the mounting plate 204 and a sensing plate 304 disposed on the side end of the mounting head 103. This utility model precisely controls the shearing force through the adjustment mechanism 300. The induction plate 304 moves with the mounting head 103 to trigger the induction switch 303. Adjusting the position of the induction switch 303 can change the piston rod stroke to adapt to slag bags of different hardness and size. The positioning column 106 and the positioning groove 2031 ensure precise shearing. The housing mechanism 200 has strong protection and the blade is easy to replace, improving efficiency and applicability.

[0023] Specifically, the rear housing 201, upper and lower housings 202, and side housing 203 are all bolted to the mounting base 101. The hydraulic device 102 is located inside the rear housing 201. The upper and lower housings 202 and side housings 203 form a box structure. The rear part of the shearing plate 105 is located inside the box structure. A lifting ring 1011 extending from the upper end of the mounting base 101 is provided. The rear housing 201, upper and lower housings 202, and side housings 203 constitute the housing mechanism 200, which can protect the shearing mechanism 100. The lifting ring 1011 facilitates the hoisting of the hydraulic shears.

[0024] Furthermore, positioning posts 106 are symmetrically arranged on the shearing plate 105, and positioning grooves 2031 are symmetrically arranged on the inner wall of the side housing 203. The positioning posts 106 are inserted into the positioning grooves 2031. The positioning posts 106 and positioning grooves 2031 can position the shearing plate 105 without hindering the rotation of the shearing plate 105 to perform the shearing action.

[0025] It is worth noting that a mounting plate 204 is bolted to the outer surface of the side housing 203, and the upper and lower housings 202 are also bolted to the mounting plate 204. A fixing seat 205 is bolted to the outer surface of the mounting plate 204. The fixing seat 205 is used for mounting the hydraulic shears, allowing the hydraulic shears to be installed on compatible equipment for operation.

[0026] It is worth noting that the adjusting plate 301 is L-shaped, with an oblong hole 302 on it. Symmetrical induction switches 303 are arranged within the oblong hole 302. Both the side housing 203 and the mounting plate 204 have movable openings, from which the induction switches 303 extend into the housing mechanism 200. During operation, the hydraulic device 102 extends or retracts its piston rod, causing the lever arm 104 to rotate. Because the position of the shearing plate 105 is fixed, the lever arm 104 can drive the shearing plate 105 to rotate, thereby achieving the shearing action of the shearing blade 108. The extension and retraction distance of the piston rod of the hydraulic device 102 controls the shearing force of the shearing blade 108. During operation, the extension and retraction of the piston rod of the hydraulic device 102 causes the induction plate 304 to move. When the induction plate 304 moves forward to the induction switch 303 at the front, it stops moving forward under the action of the induction switch 303. At this point, the piston rod no longer extends. When the sensing plate 304 moves backward and reaches the rear sensing switch 303, it will stop moving forward under the action of the rear sensing switch 303. At this point, the piston rod no longer shortens. When it is necessary to adjust the shearing force, it is only necessary to adjust the position of the two sensing switches 303. By loosening the nuts on the sensing switches 303, the two sensing switches 303 can be moved within the oblong hole 302 to adjust their position. This allows the shearing force to be adjusted according to the product to be sheared, preventing the shearing force from being too large or too small.

[0027] It is worth noting that the sensing plate 304 is U-shaped, and its height is the same as that of the inductive switch 303. The tail of the sensing plate 304 is close to the detection head of the inductive switch 303. The sensing plate 304 is designed to trigger the inductive switch 303. The sensing plate 304 moves its position as the piston rod of the hydraulic device 102 extends and retracts, and works with the inductive switch 303 to control the shearing force of the hydraulic shears.

[0028] Working Principle: This embodiment provides an adjustable hydraulic shear. In use, the hydraulic shear is first installed on a suitable work device via the fixed base 205. If movement or hoisting is required, it can be operated using the lifting ring 1011 at the upper end of the mounting base 101. The housing mechanism 200, consisting of the rear housing 201, upper and lower housings 202, and side housing 203, protects the internal shearing mechanism 100. When shearing operations are performed, the hydraulic device 102 is activated, and its piston rod extends or retracts, driving the mounting head 103 to move forward or backward. The movement of the mounting head 103 causes the lever arm 104, which is rotatably connected to it, to rotate. Due to the shearing plate... The rear of the shear plate 105 is located within the box structure formed by the upper and lower housings 202 and the side housing 203. The positioning post 106 on the shear plate 105 is inserted into the positioning groove 2031 on the inner wall of the side housing 203. The cooperation between the positioning post 106 and the positioning groove 2031 positions the shear plate 105 without hindering its rotation. Therefore, when the lever arm 104 rotates, it will drive the shear plate 105 to rotate around the positioning post 106 as the fulcrum, thereby causing the shearing blade 108 in the mounting groove 107 at the front end of the shear plate 105 to complete the shearing action. When it is necessary to adjust the shearing force, the sensor in the oblong hole 302 on the adjusting plate 301 is adjusted. Once the position of switch 303 is achieved, loosen the fixing nut on the inductive switch 303, move the inductive switch 303 to the appropriate position along the oblong hole 302, and then fix it again. The inductive switch 303 extends into the housing mechanism 200 through the movable openings on the side housing 203 and the mounting plate 204, and its height is consistent with the height of the U-shaped inductive plate 304 at the side end of the mounting head 103. When the piston rod of the hydraulic device 102 drives the mounting head 103 to move, the inductive plate 304 moves along with it. When the tail of the inductive plate 304 approaches the detection head of the front inductive switch 303, the front inductive switch 303 triggers a signal, controlling the hydraulic device 102 to stop. When the piston rod extends, the shearing blade 108 reaches its maximum shearing amplitude and corresponding maximum shearing force. When the tail of the sensing plate 304 approaches the detection head of the rear sensing switch 303, the rear sensing switch 303 triggers a signal to control the hydraulic device 102 to stop the piston rod from retracting. At this time, the shearing blade 108 resets. By adjusting the distance between the two sensing switches 303, the extension and retraction stroke of the piston rod can be changed, thereby achieving precise adjustment of the shearing force to adapt to shearing objects of different hardness and size, avoiding excessive material damage or accelerated blade wear due to excessive shearing force, or insufficient shearing force to complete the shearing operation.

[0029] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. An adjustable hydraulic shear, characterized in that, The system includes a shearing mechanism (100), a housing mechanism (200) located outside the shearing mechanism (100), and an adjusting mechanism (300) located on the housing mechanism (200). The shearing mechanism (100) includes a mounting base (101), a hydraulic device (102) located at the rear end of the mounting base (101), a piston rod of the hydraulic device (102) extending to the front end of the mounting base (101) and a mounting head (103) located thereon, and a lever arm (104) symmetrically rotatably mounted on the mounting head (103). A shearing plate (105) is rotatably mounted at the end of (104). An installation groove (107) is provided on the shearing plate (105). A shearing blade (108) is installed in the installation groove (107). The housing mechanism (200) includes a rear housing (201), upper and lower housings (202), a side housing (203), and a mounting plate (204). The adjustment mechanism (300) includes an adjustment plate (301) disposed on the outer surface of the mounting plate (204) and a sensing plate (304) disposed on the side end of the mounting head (103).

2. The adjustable hydraulic shear according to claim 1, characterized in that, The rear housing (201), upper and lower housings (202) and side housing (203) are all bolted to the mounting base (101). The hydraulic device (102) is located inside the rear housing (201). The upper and lower housings (202) and side housing (203) form a box structure. The rear part of the shearing plate (105) is located inside the box structure. The upper end of the mounting base (101) is provided with a lifting ring (1011) extending out of the housing mechanism (200).

3. An adjustable hydraulic shear according to claim 2, characterized in that, The shear plate (105) is symmetrically provided with positioning posts (106), and the inner wall of the side shell (203) is symmetrically provided with positioning grooves (2031). The positioning posts (106) are inserted into the positioning grooves (2031).

4. An adjustable hydraulic shear according to claim 3, characterized in that, The outer surface of the side housing (203) is provided with a mounting plate (204) by bolts. The upper and lower housings (202) are also connected to the mounting plate (204) by bolts. The outer surface of the mounting plate (204) is provided with a fixing seat (205) by bolts.

5. An adjustable hydraulic shear according to claim 4, characterized in that, The adjustment plate (301) is L-shaped and has a waist-shaped hole (302). A sensor switch (303) is symmetrically arranged in the waist-shaped hole (302). Both the side housing (203) and the mounting plate (204) have movable openings. The sensor switch (303) extends from the movable opening into the housing mechanism (200).

6. An adjustable hydraulic shear according to claim 5, characterized in that, The sensing plate (304) is U-shaped, and the height of the sensing plate (304) is the same as the height of the sensing switch (303). The tail of the sensing plate (304) is close to the detection head of the sensing switch (303).

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