Stepless pressure regulating hydraulic shear

Abstract

The utility model relates to the technical field of stepless hydraulic shears, and discloses a stepless pressure regulating hydraulic shear which comprises a workbench and a hydraulic rod bolted to the top of the workbench, and further comprises a connecting shell fixed to an output shaft of the hydraulic rod, a shearing block is connected to an inner cavity of the connecting shell in a sliding mode, and a limiting mechanism is arranged on one side of the connecting shell; through the cooperation of the rack plate, the spur gear, the bevel gear set and the threaded rod, the sleeve can drive the clamping plate to move downwards, the clamping plate can limit materials, the situation that the materials deviate when the shearing block works is effectively prevented, errors caused by material machining are reduced, and the machining efficiency is improved. And meanwhile, under the cooperation of a mounting rod, a limiting block, a limiting groove and a limiting mechanism, a plurality of moving rods can be moved out of the interior of the shearing block at the same time, workers can replace the shearing block conveniently, the labor amount of the workers is reduced, and the material shearing speed of the workers is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of stepless hydraulic shears, in particular to a stepless pressure regulating hydraulic shear. Background Technique

[0002] A hydraulic shear, also known as a hydraulic shearing machine, is a device that uses a hydraulic system to drive a cutting tool for metal processing. According to the thickness of the cutting material, the hydraulic shear can be divided into a small-stroke hydraulic shear and a large-stroke hydraulic shear.

[0003] However, when an existing stepless pressure regulating hydraulic shear is put into use, the oil cylinder piston moves downward through hydraulic oil to push the cutting tool to be able to shear the material. However, when the cutting tool shears the material, under the action of the pressure of the cutting tool, the position of the material is likely to shift to a certain extent, resulting in errors in material processing and increasing the cost of material production.

[0004] At the same time, most stepless pressure regulating hydraulic shears shear materials with a certain hardness. As the cutting tool moves downward, one side of the cutting tool rubs against the material. After long-term use, the cutting tool is likely to be damaged and needs to be replaced by the staff. However, most replacements are carried out by the cooperation of multiple bolts and nuts, which not only increases the labor intensity of the staff but also reduces the rate of material shearing by the staff. Content of the Utility Model

[0005] The purpose of the utility model is to provide a stepless pressure regulating hydraulic shear to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: A stepless pressure regulating hydraulic shear, including a workbench and a hydraulic rod bolted to the top of the workbench, further including:

[0007] A connection shell fixed to the output shaft of the hydraulic rod. A shear block is slidably connected to the inner cavity of the connection shell. A limiting mechanism is arranged on one side of the connection shell. An installation block is arranged on one side of the connection shell. An installation rod is slidably connected to the inner cavity of the installation block.

[0008] A limiting block bolted to one side of the installation rod. A limiting groove is opened on one side of the workbench. A rack plate is bolted to one side of the connection shell. A spur gear is meshed with one side of the rack plate. A bevel gear set is fixed to one side of the spur gear through a rotating rod.

[0009] A threaded rod fixed to one side of the bevel gear set. A sleeve is threadedly connected to the surface of the threaded rod. A clamping plate is bolted to one side of the sleeve. A guiding mechanism is arranged on one side of the clamping plate.

[0010] Preferably, the limiting mechanism includes a moving rod sliding in the inner cavity of the connecting shell. One side of the connecting shell is fixed with a tension spring. One side of the moving rod is bolted with a fixed rod. One side of the tension spring is fixedly connected with one side of the fixed rod. One side of the fixed rod is bolted with one side of the mounting block.

[0011] Preferably, the guiding mechanism includes a fixed block bolted to the top of the workbench. One side of the fixed block is fixed with a guiding rod. One side of the guiding rod is fixedly connected with the top of the workbench. The surface of the guiding rod is slidably connected with a slider. One side of the slider is bolted with one side of the clamping plate.

[0012] Preferably, the cross-sectional shape of the limiting groove is a concave design, and the surface of the limiting block is slidably connected with the inner cavity of the limiting groove.

[0013] Preferably, the bevel gear set is composed of two bevel gears with the same size meshing with each other.

[0014] Preferably, the number of the moving rods and the tension springs is several and they are arranged at equal intervals on one side of the fixed rod.

[0015] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0016] Through the cooperation of the rack plate, the spur gear, the bevel gear set and the threaded rod, the present utility model can drive the clamping plate to move downward by the sleeve, so that the clamping plate can limit the material, effectively preventing the material from shifting during the operation of the shearing block, reducing the error in material processing, reducing the cost of material production. At the same time, through the cooperation of the mounting rod, the limiting block, the limiting groove and the limiting mechanism, multiple moving rods can be moved out of the inside of the shearing block at the same time, facilitating the replacement of the shearing block by the staff, reducing the labor intensity of the staff, and increasing the shearing rate of the staff for the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0018] Figure 2 is a cross-sectional structural schematic diagram of the connecting shell of the present utility model;

[0019] Figure 3 is a structural schematic diagram of the limiting mechanism of the present utility model;

[0020] Figure 4 is a structural schematic diagram of the guiding mechanism of the present utility model.

[0021] In the figure: 1, workbench; 2, hydraulic rod; 3, connecting shell; 4, shear block; 5, limiting mechanism; 51, moving rod; 52, tension spring; 53, fixed rod; 6, mounting block; 7, mounting rod; 8, limiting block; 9, limiting groove; 10, rack plate; 11, spur gear; 12, bevel gear set; 13, threaded rod; 14, sleeve; 15, clamping plate; 16, guiding mechanism; 161, fixed block; 162, guiding rod; 163, slider. Detailed implementation manners

[0022] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without making creative efforts shall fall within the protection scope of the present invention.

[0023] Please refer to Figures 1-4As shown in the figure, a stepless voltage regulating hydraulic shear includes a workbench 1 on which materials can be processed. A hydraulic rod 2 is bolted to the top of the workbench 1. The output shaft of the hydraulic rod 2 is fixed with a connecting shell 3. A shear block 4 is slidably connected to the inner cavity of the connecting shell 3. Under the action of the hydraulic rod 2, the shear block 4 can move downward so that the shear block 4 can shear the materials. A limiting mechanism 5 is arranged on one side of the connecting shell 3. The limiting mechanism 5 can fix the shear block 4 in the inner cavity of the connecting shell 3, which facilitates the staff to replace the shear block 4, reduces the labor intensity of the staff, and improves the shearing rate of the staff for the materials. An installation block 6 is arranged on one side of the connecting shell 3. An installation rod 7 is slidably connected to the inner cavity of the installation block 6. A limiting block 8 is bolted to one side of the installation rod 7. A limiting groove 9 is opened on one side of the workbench 1. The cross-sectional shape of the limiting groove 9 is designed to be concave. The surface of the limiting block 8 is slidably connected to the inner cavity of the limiting groove 9. Under the action of the installation block 6 and the installation rod 7, the limiting block 8 can move in the inner cavity of the limiting groove 9, which can effectively prevent the limiting mechanism 5 from shifting in position during operation, increases the stability of the limiting mechanism 5, and thus increases the stability of the hydraulic shear. A rack plate 10 is bolted to one side of the connecting shell 3. A spur gear 11 is meshed with one side of the rack plate 10. A bevel gear set 12 is fixed to one side of the spur gear 11 through a rotating rod. The bevel gear set 12 is composed of two bevel gears with the same size meshing with each other. A threaded rod 13 is fixed to one side of the bevel gear set 12. One side of the threaded rod 13 is rotatably connected to the top of the workbench 1. With the cooperation of the hydraulic rod 2 and the connecting shell 3, the rack plate 10 can drive the spur gear 11 to rotate. The spur gear 11 drives the threaded rod 13 to rotate on one side of the workbench 1 through the bevel gear set 12. A sleeve 14 is threadedly connected to the surface of the threaded rod 13. A clamping plate 15 is bolted to one side of the sleeve 14. Under the action of the threaded rod 13, the sleeve 14 can drive the clamping plate 15 to move downward following the hydraulic rod 2, so that the clamping plate 15 can limit the materials, effectively preventing the materials from shifting in position when being sheared by the shear block 4 and preventing errors in material shearing, thereby increasing the stability of the hydraulic shear. A guiding mechanism 16 is arranged on one side of the clamping plate 15. Under the action of the guiding mechanism 16, the clamping plate 15 can move downward more stably, thereby increasing the stability of the hydraulic shear.

[0024] The limiting mechanism 5 includes a moving rod 51. The surface of the moving rod 51 is slidably connected to the inner cavity of the connecting shell 3. One side of the connecting shell 3 is fixed with a tension spring 52. One side of the moving rod 51 is bolted with a fixed rod 53. One side of the tension spring 52 is fixedly connected to one side of the fixed rod 53. One side of the fixed rod 53 is bolted to one side of the mounting block 6. The number of the moving rod 51 and the tension spring 52 is several and they are arranged at equal intervals on one side of the fixed rod 53. With the cooperation of the mounting rod 7 and the mounting block 6, the fixed rod 53 can drive the moving rod 51 to move, enabling the tension spring 52 to be stretched, so that the moving rod 51 can move out of the inside of the connecting shell 3 and the shearing block 4, thus facilitating the staff to replace the shearing block 4, increasing the shearing rate of the staff, reducing the labor amount of the staff, and enhancing the practicability of this hydraulic shear.

[0025] The guiding mechanism 16 includes a fixed block 161. One side of the fixed block 161 is bolted to the top of the workbench 1. One side of the fixed block 161 is fixed with a guiding rod 162. One side of the guiding rod 162 is fixedly connected to the top of the workbench 1. A slider 163 is slidably connected to the surface of the guiding rod 162. One side of the slider 163 is bolted to one side of the clamping plate 15. With the cooperation of the threaded rod 13 and the sleeve 14, the clamping plate 15 can drive the slider 163 to move on the surface of the guiding rod 162, and under the action of the fixed block 161, the clamping plate 15 can move more stably, increasing the stability of the clamping plate 15, thereby enhancing the stability of this hydraulic shear.

[0026] Working principle: First, the staff places the material to be sheared on the top of the workbench 1. Under the action of the hydraulic rod 2, the connecting shell 3 drives the spur gear 11 to rotate through the rack plate 10. The spur gear 11 drives the threaded rod 13 to rotate on the top of the workbench 1 through the bevel gear set 12. The threaded rod 13 drives the clamping plate 15 to move downward through the sleeve 14, enabling the clamping plate 15 to limit the material, reducing the displacement of the material when the shearing block 4 shears the material. At the same time, the clamping plate 15 drives the slider 163 to move on the surface of the guiding rod 162, making the clamping plate 15 move more stably. When the shearing block 4 needs to be replaced, the staff moves the mounting rod 7 upward in the inner cavity of the mounting block 6, enabling the limiting block 8 to move in the inner cavity of the limiting groove 9. At the same time, the mounting block 6 drives the moving rod 51 to move through the fixed rod 53, enabling the tension spring 52 to be stretched, so that the moving rod 51 moves out of the inside of the connecting shell 3 and the shearing block 4. Subsequently, the staff replaces the shearing block 4, moves the limiting block 8 in the inner cavity of the limiting groove 9 through the mounting rod 7, and under the action of the rebound of the tension spring 52, the moving rod 51 can move into the inside of the connecting shell 3 and the shearing block 4. Subsequently, the staff can process the subsequent materials with this hydraulic shear.

[0027] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising said element.

[0028] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic shear with stepless voltage regulation, comprising a workbench (1) and a hydraulic rod (2) bolted to the top of the workbench (1), characterized in that: Also includes: A connecting shell (3) fixed to the output shaft of the hydraulic rod (2), the inner cavity of the connecting shell (3) being slidably connected to a shear block (4), a limiting mechanism (5) being provided on one side of the connecting shell (3), a mounting block (6) being provided on one side of the connecting shell (3), and the inner cavity of the mounting block (6) being slidably connected to a mounting rod (7); A limit block (8) is bolted to one side of the mounting rod (7); a limit groove (9) is provided on one side of the workbench (1); a rack plate (10) is bolted to one side of the connecting shell (3); a spur gear (11) is meshed on one side of the rack plate (10); and a bevel gear set (12) is fixed on one side of the spur gear (11) via a rotating rod; A threaded rod (13) is fixed to one side of a bevel gear set (12), a sleeve (14) is threadedly connected to the surface of the threaded rod (13), a clamping plate (15) is bolted to one side of the sleeve (14), and a guide mechanism (16) is provided on one side of the clamping plate (15).

2. The stepless pressure regulating hydraulic shear according to claim 1, characterized in that: The limiting mechanism (5) comprises a moving rod (51) sliding in the inner cavity of the connecting shell (3), a tension spring (52) being fixed on one side of the connecting shell (3), a fixing rod (53) being bolted to one side of the moving rod (51), one side of the tension spring (52) being fixedly connected to one side of the fixing rod (53), and one side of the fixing rod (53) being bolted to one side of the mounting block (6).

3. The stepless pressure regulating hydraulic shear according to claim 1, characterized in that: The guide mechanism (16) comprises a fixed block (161) bolted to the top of the workbench (1), a guide rod (162) is fixed to one side of the fixed block (161), one side of the guide rod (162) is fixedly connected to the top of the workbench (1), a sliding block (163) is slidably connected to the surface of the guide rod (162), and one side of the sliding block (163) is bolted to one side of the clamping plate (15).

4. The stepless pressure regulating hydraulic shear according to claim 1, characterized in that: The cross-sectional shape of the limiting groove (9) is a concave design, and the surface of the limiting block (8) is slidably connected to the inner cavity of the limiting groove (9).

5. The stepless pressure regulating hydraulic shear according to claim 1, characterized in that: The bevel gear set (12) consists of two bevel gears of the same size meshing with each other.

6. The stepless pressure regulating hydraulic shear according to claim 2, characterized in that: The movable rods (51) and the tension springs (52) are in multiple numbers and are arranged at equal distances on one side of the fixed rod (53).

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