Crocodile shearing machine for rough machining of steel structure

Abstract

The utility model relates to the field of steel structure machining, in particular to a crocodile shearing machine for rough machining of a steel structure, which comprises a machine base, a pressing plate, a working knife and an auxiliary knife, wherein the pressing plate and the working knife are pneumatically mounted on the machine base, the auxiliary knife is mounted on the machine base, and a rotating shaft is arranged at one end of the auxiliary knife and rotatably connected with the machine base to enable the auxiliary knife to rotate. According to the crocodile shearing machine for rough machining of the steel structure, the auxiliary cutter and the traction mechanism are installed, when the working cutter conducts shearing, the auxiliary cutter can be driven to work, bidirectional pressure applying and cutting can be conducted on the steel structure, and the cutting efficiency is improved. The shearing force of the crocodile shearing machine is improved, so that the shearing efficiency is improved, the production benefit is improved, the effects of low cost and high-efficiency output of the auxiliary knife and the traction mechanism are embodied, and the practicability of the crocodile shearing machine is greatly improved.

Description

Technical Field

[0001] This utility model relates to the field of steel structure processing technology, specifically an alligator shear for rough processing of steel structures. Background Technology

[0002] Steel structures are structures made of steel materials and are one of the main types of building structures. The structure mainly consists of steel beams, steel columns, steel trusses, and other components made of shaped steel and steel plates, and employs rust removal and prevention processes such as silanization, pure manganese phosphating, water washing and drying, and galvanizing. The various components or parts are typically connected by welds, bolts, or rivets. Due to its light weight and simple construction, it is widely used in large factories, stadiums, high-rise buildings, bridges, and other fields. When manufacturing steel beams and other components, rough machining of the steel structure is usually required, thus utilizing alligator shears. Alligator shears, also known as alligator cutters, are machine tools specifically designed for metal shearing. They are hydraulically driven, using a hydraulic pump to generate pressure, and an electromagnetic reversing valve to control the lifting and retraction of the cylinder, combined with the lever principle to complete the shearing action.

[0003] Currently, due to the large number of steel structure components that need to be sheared in the factory area, the existing alligator shearing machines usually use a rotating working blade to apply pressure to the steel structure on the fixed machine base to tear the steel structure. This one-way motion method results in low shearing efficiency and reduced output. At the same time, when processing thicker or harder steel materials, one-way shearing requires a longer time to complete a shearing action, or even multiple shearings, thus reducing work efficiency. Summary of the Invention

[0004] The main purpose of this utility model is to solve the above-mentioned existing technical problems and provide an alligator shear for rough processing of steel structures.

[0005] The specific solution of this utility model is: an alligator shear for rough processing of steel structures, including a base, on which a pressure plate and a working blade are pneumatically mounted, and an auxiliary blade is mounted on the base. One end of the auxiliary blade has a rotating shaft, which is rotatably connected to the base, allowing the auxiliary blade to rotate. The auxiliary blade is located below the working blade on one side. A traction mechanism is mounted on one end of the auxiliary blade, which drives the auxiliary blade to move when the working blade moves. The traction mechanism includes a mounting base, which is fixed to one end of the base. The mounting base has a perforated mounting groove on its surface, and a guide wheel is rotatably mounted inside the mounting groove. A steel wire rope is rotatably connected to the end of the working blade. The end of the steel wire rope away from the working blade passes over the guide wheel and is rotatably connected to a connecting plate. The end of the connecting plate away from the steel wire rope is rotatably connected to the auxiliary blade.

[0006] According to the above technical solution, the working blade cuts downwards while simultaneously moving the steel wire rope downwards. The other end of the steel wire rope lifts the auxiliary blade upwards, causing the auxiliary blade and the working blade to form a scissor-like cutting motion. This allows for simultaneous cutting from both the top and bottom of the steel structure, improving work efficiency.

[0007] Furthermore, the mounting groove is provided with sliding grooves on both sides, and the surface of the connecting plate is hollowed out with through holes. A movable shaft is rotatably installed in the through holes, and both ends of the movable shaft pass through the sliding grooves and are slidably connected to the sliding grooves.

[0008] According to the above technical solution, the stability of the wire rope when pulling the auxiliary knife is improved by moving the movable shaft guide connecting plate.

[0009] Furthermore, when the working blade and the auxiliary blade overlap, the gap between their inner sidewalls is 2mm to 5mm.

[0010] According to the above technical solution, a gap of 2mm to 5mm is used to avoid friction between the auxiliary blade and the working blade during shearing.

[0011] Furthermore, the wire rope is an eight-strand wire rope.

[0012] According to the above technical solution, the strength of the steel wire rope is improved by using eight strands of steel wire rope, which avoids the situation where the rope breaks due to insufficient strength when pulling the auxiliary knife.

[0013] Furthermore, a support rod is fixedly connected to one side of the mounting base, and the other end of the support rod is fixedly connected to the machine base.

[0014] According to the above technical solution, the stability and firmness of the mounting base are further improved by the support rod.

[0015] Compared with the prior art, this utility model has the following advantages: The alligator shear for rough processing of steel structures is equipped with an auxiliary blade and a traction mechanism. When the working blade is cutting, it can drive the auxiliary blade to work, which can apply pressure and cut the steel structure in both directions, thereby improving the cutting force of the alligator shear and thus improving the cutting efficiency and production benefits. It demonstrates that the auxiliary blade and traction mechanism achieve high-efficiency output at low cost, which greatly improves the practicality of the alligator shear. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the present invention;

[0017] Figure 2 yes Figure 1 Enlarged view of the structure at point A;

[0018] Figure 3 yes Figure 1 Enlarged view of the structure at point B;

[0019] Figure 4 yes Figure 1 Top sectional view;

[0020] Figure 5 yes Figure 4 Enlarged view of the structure at point C;

[0021] Figure 6 yes Figure 4 Enlarged view of the structure at point D;

[0022] In the diagram: 1. Base; 2. Pressure plate; 3. Working blade; 4. Auxiliary blade; 5. Rotating shaft; 6. Mounting base; 7. Mounting groove; 8. Guide wheel; 9. Wire rope; 10. Connecting plate; 11. Slide groove; 12. Through hole; 13. Movable shaft; 14. Support rod. Detailed Implementation

[0023] See Figure 1-6 This embodiment is an alligator shear for rough processing of steel structures. The base 1 is used to install the pressure plate 2 and the working blade 3, and also serves as a platform for placing the steel structure. An auxiliary blade 4 is installed on the base 1. A rotating shaft 5 is welded to one end of the auxiliary blade 4, and the other end of the rotating shaft 5 is rotatably connected to the base 1. The auxiliary blade 4 is located on one side below the working blade 3, so that the outer wall is sheared when the auxiliary blade 4 shears the working blade 3. A traction mechanism is installed at one end of the auxiliary blade 4. The traction mechanism is used to drive the auxiliary blade 4 to move upward for shearing when the working blade 3 shears downward. The traction mechanism includes a mounting base 6, which is welded to one end of the base 1. The surface of the mounting base 6 has a hollowed-out mounting groove 7. A guide wheel 8 is rotatably installed inside the mounting groove 7. The guide wheel 8 is located in the upper half of the mounting groove 7. A steel wire rope 9 is rotatably connected to the end of the working blade 3. The end of the steel wire rope 9 away from the working blade 3 passes around the guide wheel 8 and is rotatably connected to a connecting plate 10. The end of the connecting plate 10 away from the steel wire rope 9 is rotatably connected to the auxiliary blade 4.

[0024] Furthermore, the mounting groove 7 has open sliding grooves 11 on both sides, and the connecting plate 10 has open through holes 12 on its surface. A movable shaft 13 is rotatably installed in the through holes 12. The two ends of the movable shaft 13 pass through the sliding grooves 11 and are slidably connected to the sliding grooves 11. The movable shaft 13 moves up and down along the sliding grooves 11, which improves the effect of the guide auxiliary knife 4 and enhances stability.

[0025] Furthermore, when the working blade 3 and the auxiliary blade 4 overlap, the gap between their inner walls is 2mm to 5mm to avoid friction between the working blade 3 and the auxiliary blade 4 during shearing.

[0026] Furthermore, the wire rope 9 is an eight-strand wire rope 9, which improves the strength of the wire rope 9.

[0027] Furthermore, a support rod 14 is fixedly connected to one side of the mounting base 6, and the other end of the support rod 14 is fixedly connected to the base 1, which improves the stability of the mounting base 6.

[0028] The working principle of this embodiment is as follows: When in use, the steel material is first placed on the upper part of the auxiliary blade 4, and then the steel material is pressed down by the pressure plate 2. When shearing, the working blade 3 moves downward and pulls the steel wire rope 9 downward. The steel wire rope 9 moves downward on the guide wheel 8. At the same time, the other end of the steel wire rope 9 pulls the connecting plate 10. The connecting plate 10 moves upward through the two movable shafts 13 at both ends. At the same time, the connecting plate 10 rotates on the movable shaft 13 through the through hole 12 to adjust the angle. When one end of the connecting plate 10 rises, the other end pulls the auxiliary blade 4 upward, so that the auxiliary blade 4 rotates upward toward the working blade 3 to shear, realizing the effect of bidirectional extrusion and shearing, which improves the work efficiency. When the working blade 3 is lifted up, the auxiliary blade 4 rotates downward by its own gravity to return to its position, and the next shearing can begin.

Claims

1. A steel structure roughing alligator shear, comprising a base, wherein a pressure plate and a working blade are pneumatically mounted on the base, characterized in that: An auxiliary blade is mounted on the base. One end of the auxiliary blade has a rotating shaft, which is rotatably connected to the base, allowing the auxiliary blade to rotate. The auxiliary blade is located below the working blade on one side. A traction mechanism is mounted on one end of the auxiliary blade. The traction mechanism is used to move the auxiliary blade when the working blade moves. The traction mechanism includes a mounting base, which is fixed to one end of the base. The surface of the mounting base has a hollowed-out mounting groove. A guide wheel is rotatably mounted inside the mounting groove. A steel wire rope is rotatably connected to the end of the working blade. The end of the steel wire rope away from the working blade passes around the guide wheel and is rotatably connected to a connecting plate. The end of the connecting plate away from the steel wire rope is rotatably connected to the auxiliary blade.

2. The alligator shear for rough machining of steel structures according to claim 1, characterized in that: The mounting groove has sliding grooves on both sides, and the surface of the connecting plate has through holes. A movable shaft is rotatably installed in the through holes, and both ends of the movable shaft pass through the sliding grooves and are slidably connected to the sliding grooves.

3. The alligator shear for rough machining of steel structures according to claim 1 or 2, characterized in that: When the working blade and the auxiliary blade overlap, the gap between their inner sidewalls is 2mm to 5mm.

4. The alligator shear for rough machining of steel structures according to claim 1 or 2, characterized in that: The wire rope is an eight-strand wire rope.

5. The alligator shear for rough machining of steel structures according to claim 1, characterized in that: A support rod is fixedly connected to one side of the mounting base, and the other end of the support rod is fixedly connected to the machine base.

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