Steel strand cutter
By designing a steel strand cutter and using a high-pressure oil pump to drive the moving knife and the fixed knife, the time-consuming and labor-intensive and safety hazards in the existing technology are solved, and efficient and safe steel strand cut and cutting of various materials are achieved, which is suitable for applications in coal mine tunnels.
Patent Information
- Application Number
- CN202421670558.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-07-25
- Estimated Expiration
- 2034-07-15
AI Technical Summary
The existing steel strand cutting method is time-consuming and labor-intensive, and has a low safety factor. It is impossible to cut off the steel strands and excessively long anchor cables that are scattered at the end, which poses a safety hazard.
A steel strand cutter is designed, including cylinder block, tool holder, fixed knife, movable knife, piston rod, return spring and other components. The steel strand is driven by a high-pressure oil pump to cut off the steel strand, and cooperate with the fixed knife and tool holder to achieve efficient cutting, and has detachable and sharpening functions.
It realizes efficient and safe steel strand cutting, which can cut the steel strands and excessively long anchor cables at the ends, improves safety, reduces working strength, expands application scenarios, and is suitable for cutting a variety of materials in coal mine tunnels.
Smart Images
Figure CN223145853U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of cutters, and particularly relates to a steel strand cutter. Background Art
[0002] A cutter is a device that uses mechanical force or hydraulic power to achieve the purpose of wire cutting. It can be used to cut various wire materials such as ground wires and steel strands. According to different power forms, the mechanical type is called a cutter, and the hydraulic type is called a wire cutting machine. The cutter can be used for blanking of angle iron products in various factories and mines.
[0003] The earliest existing method for cutting steel strands is to basically cut the steel strands manually. In this cutting process, it is time-consuming and laborious, and the safety factor is low. Subsequently, a steel strand cutter is used to cut the steel strands. During the installation and use of the steel strands, some of the steel wires at the end of the steel strands are scattered. The traditional core-piercing type cutter loses its function and cannot cut the steel strands with scattered end wires. At the same time, the existing cutters have low cutting efficiency and potential safety hazards. When installing anchor supports such as steel strands in coal mine roadway tunneling, some anchor cables are exposed too long. The existing cutters cannot cut the too-long anchor cables, which also poses potential safety hazards. Therefore, a steel strand cutter is needed to solve the above problems. Content of the Utility Model
[0004] The purpose of the utility model is to provide a steel strand cutter to solve the problems raised in the above background art.
[0005] To achieve the above purpose, the utility model provides the following technical solution: A steel strand cutter, including a cylinder body, one side of the outer surface of the cylinder body is threadedly connected with a tool rest, the inside of the tool rest is threadedly connected with a fixed cutter, a moving cutter is slidably connected inside the cylinder body and the tool rest, a piston push rod is threadedly connected to the outer surface of the moving cutter, a piston is fixedly connected to the outer surface of the piston push rod, a return spring is fixedly connected to the top of the piston push rod, a spring retaining ring is fixedly connected to the bottom of the piston push rod, a guide ring is fixedly connected between the top inner wall of the cylinder body and the top of the piston, lugs are fixedly connected to the outer surface of the cylinder body, and a plastic handle is fixedly connected to the outer surface of the lugs.
[0006] By setting up the above structure, connect the cutter and the oil pump with a high-pressure rubber hose, place the steel strand into the cutter station, turn the reversing handle of the oil pump to make it in the loading state. After the oil pump is loaded, the moving knife of the cutter starts to cut the steel strand. The steel strand is cut by the steel strand cutter, which saves time and effort and has a high safety factor. Moreover, with the cooperation of the fixed knife, the moving knife and the tool holder, the steel strand cutter can cut the steel strand with a scattered end, and can also cut the overlong cable anchor, making the application scenario of the steel strand cutter wider. In addition, the steel strand cutter has high working efficiency and is easy to operate, which can reduce the working intensity and can also cut various materials such as steel strands, anchor bolts, and round steel bars in coal mine roadways. At the same time, the steel strand cutter also has the characteristics that the fixed knife and the moving knife are detachable, can be re-sharpened and replaced.
[0007] As a preferred solution, the moving knife and the piston ejector rod are connected by a straight slot heavy-duty thread of an elastic cylindrical pin.
[0008] As a preferred solution, a through-shaft is provided inside the plastic handle.
[0009] As a preferred solution, the cylinder block and the lug are internally threaded with socket head cap screws.
[0010] As a preferred solution, an O-ring and a retaining ring are fixedly connected to the bottom of the piston and the inner wall of the bottom of the cylinder block.
[0011] As a preferred solution, a common flat key is internally threaded in the moving knife.
[0012] By setting up the piston and the return spring, during the operation of the steel strand cutter, the piston moves downward under the push of the hydraulic oil, which can compress the return spring and push the moving knife downward until the steel strand is cut. After the steel strand is cut, the return spring will also stretch, pushing the piston and the moving knife upward to return to the starting position. At the same time, the piston ejector rod can effectively prevent the piston from running off track and ensure the normal operation of the piston.
[0013] Compared with the prior art, the beneficial effects of the present utility model are:
[0014] The utility model, by setting a fixed knife, a moving knife, a spring retaining ring, a tool rest, a guide ring, a piston ejector rod and a retaining ring, connects the cutter with a high-pressure rubber hose of an oil pump. After placing the steel strand into the working position of the cutter, rotate the reversing handle of the oil pump to make it in the loading state. After the oil pump is loaded, the moving knife of the cutter starts to cut the steel strand. The steel strand is cut by the steel strand cutter, which is time-saving and labor-saving, and has a high safety factor. Moreover, the steel strand cutter can cut the steel strand with a scattered end under the cooperation of the fixed knife, the moving knife and the tool rest, and can also cut the overlong anchor cable, making the application scenario of the steel strand cutter wider. In addition, the steel strand cutter has high working efficiency and is easy to operate, which can reduce the working intensity, and can also cut various materials such as steel strands, anchor bolts, round steel bars, etc. in coal mine roadways. At the same time, the steel strand cutter also has the characteristics that the fixed knife and the moving knife are detachable, can be re-sharpened and replaced.
[0015] In the utility model, by setting a piston and a return spring, during the operation of the steel strand cutter, the piston moves downward under the push of hydraulic oil, can compress the return spring, and push the moving knife downward until the steel strand is cut. After the steel strand is cut, the return spring will also stretch, pushing the piston and the moving knife upward to return to the starting position. At the same time, the piston ejector rod can effectively prevent the piston from running off track and ensure the normal operation of the piston. Description of the Drawings
[0016] Figure 1 is a front three-dimensional structural schematic diagram of the utility model;
[0017] Figure 2 is a side three-dimensional structural schematic diagram of the utility model;
[0018] In the figure: 1, fixed knife; 2, moving knife; 3, spring retaining ring; 4, piston; 5, tool rest; 6, guide ring; 7, return spring; 8, piston ejector rod; 9, cylinder block; 10, ear piece; 11, plastic handle; 12, through shaft; 13, hexagon socket head cap screw; 14, O-ring; 15, retaining ring; 16, heavy-duty straight-slot spring pin; 17, ordinary flat key. Detailed Embodiments
[0019] The following further describes the utility model with reference to the embodiments.
[0020] The following embodiments are used to illustrate the utility model, but cannot be used to limit the protection scope of the utility model. The conditions in the embodiments can be further adjusted according to specific conditions. Any simple improvement of the method of the utility model under the premise of the conception of the utility model belongs to the protection scope required by the utility model.
[0021] Please refer to Figure 1-2, the utility model provides a steel strand cutting device, which includes a cylinder block 9. One side of the outer surface of the cylinder block 9 is threadedly connected with a tool holder 5. The inside of the tool holder 5 is threadedly connected with a fixed cutter 1. A moving cutter 2 is slidably connected inside the cylinder block 9 and the tool holder 5. A piston push rod 8 is threadedly connected to the outer surface of the moving cutter 2. The piston push rod 8 can effectively prevent the piston 4 from running off track and can ensure the normal operation of the piston 4. A piston 4 is fixedly connected to the outer surface of the piston push rod 8. A piston 4 is fixedly connected to the outer surface of the piston push rod 8. A return spring 7 is fixedly connected to the top of the piston push rod 8. A spring retaining ring 3 is fixedly connected to the bottom of the piston push rod 8. The spring retaining ring 3 can fix and limit the components inside the cylinder block 9. A guide ring 6 is fixedly connected between the top inner wall of the cylinder block 9 and the top of the piston 4. The guide ring 6 can provide support and guidance for the cylinder block 9 and its internal components, and can also ensure the linearity of the movement of the piston 4. An ear plate 10 is fixedly connected to the outer surface of the cylinder block 9. A plastic handle 11 is fixedly connected to the outer surface of the ear plate 10. By setting the fixed cutter 1, the moving cutter 2, the spring retaining ring 3, the tool holder 5, the guide ring 6, the piston push rod 8 and the retaining ring 15, connect the cutting device and the oil pump with a high-pressure rubber hose. Place the steel strand into the cutting position of the cutting device. Rotate the reversing handle of the oil pump to make it in the loading state. After the oil pump is loaded, the moving cutter 2 of the cutting device starts to cut the steel strand. Cut the steel strand through the steel strand cutting device, which is time-saving and labor-saving with a high safety factor. And the steel strand cutting device can cut the steel strand with a scattered end under the cooperation of the fixed cutter 1, the moving cutter 2 and the tool holder 5. At the same time, it can also cut the too-long anchor cable, making the application scenario of the steel strand cutting device wider. In addition, the steel strand cutting device has high working efficiency and is easy to operate, which can reduce the working intensity. It can also cut various materials such as steel strands, anchor bolts, and round steel bars in coal mine roadways. At the same time, the steel strand cutting device also has the characteristics that the fixed cutter 1 and the moving cutter 2 are detachable, can be re-sharpened and replaced.
[0022] The moving cutter 2 and the piston push rod 8 are connected by a heavy-duty straight-slot spring pin 16. The heavy-duty straight-slot spring pin 16 can prevent the connection between the parts inside the cylinder block 9 from loosening. At the same time, the elasticity will absorb vibration, which can ensure the stable operation of all components inside the cylinder block 9.
[0023] A through-shaft 12 is provided inside the plastic handle 11.
[0024] Hexagon socket head cap screws 13 are threadedly connected inside the cylinder block 9 and the ear plate 10.
[0025] An O-ring 14 and a retaining ring 15 are fixedly connected between the bottom of the piston 4 and the bottom inner wall of the cylinder block 9. The retaining ring 15 can limit the components inside the cylinder block 9 and prevent the axial movement of the components inside the cylinder block 9.
[0026] The internal thread of the moving knife 2 is connected with a common flat key 17. By setting the piston 4 and the return spring 7, during the operation of the steel strand cutter, the piston 4 moves downward under the push of hydraulic oil, can compress the return spring 7, and push the moving knife 2 to move downward until the steel strand is cut off. After the steel strand is cut off, the return spring 7 will also stretch, push the piston 4 and the moving knife 2 to move upward to return to the starting position. At the same time, the piston ejector rod 8 can effectively prevent the piston 4 from running off track, ensuring the normal operation of the piston 4.
[0027] The working principle and usage process of the present utility model: Connect the cutter with the oil pump using a high-pressure rubber hose, place the steel strand into the cutter working station, rotate the oil pump reversing handle to make it in the loading state. After the oil pump is loaded, the moving knife 2 of the cutter starts to cut the steel strand. At this time, the piston 4 is sealed inside the cylinder block 9 and moves back and forth under the action of oil pressure. The cylinder block 9 is threadedly connected with the tool rest 5. The fixed knife 1 is fixed on the tool rest 5 by screws and remains stationary. The moving knife 2 is pulled by the piston ejector rod 8 and moves back and forth under the action of oil pressure. There is a flat key groove on the moving knife 2 and a flat key groove track on the tool rest 5, so that the moving knife 2 can only move up and down and cannot rotate left and right. After the steel strand is cut off, stop the oil pump loading and make the reversing handle in the middle state. The moving knife 2 of the cutter automatically returns to the bottom under the action of the return spring 7, moves out of the cutter and transfers to the next working station. The moving distance of the moving knife 2 is 24 mm, the maximum distance between the fixed knife 1 and the moving knife 2 is 25, and at the moment when the steel strand is cut off, there is a distance of 1 mm between the fixed knife 1 and the moving knife 2 to prevent the cutting edge from being damaged.
[0028] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.
Claims
1. A steel strand cutter, comprising a cylinder block (9), characterized in that: One side of the outer surface of the cylinder block (9) is threadedly connected with a tool holder (5). A fixed cutter (1) is threadedly connected inside the tool holder (5). A moving cutter (2) is slidably connected inside the cylinder block (9) and the tool holder (5). A piston push rod (8) is threadedly connected to the outer surface of the moving cutter (2). A piston (4) is fixedly connected to the outer surface of the piston push rod (8). A return spring (7) is fixedly connected to the top of the piston push rod (8). A spring retaining ring (3) is fixedly connected to the bottom of the piston push rod (8). A guide ring (6) is fixedly connected between the top inner wall of the cylinder block (9) and the top of the piston (4). An ear plate (10) is fixedly connected to the outer surface of the cylinder block (9). A plastic handle (11) is fixedly connected to the outer surface of the ear plate (10).
2. The steel strand cutter according to claim 1, characterized in that: The moving cutter (2) and the piston push rod (8) are threadedly connected by an elastic cylindrical pin straight groove heavy type (16).
3. A steel strand cutter according to claim 1, characterized in that: A through shaft (12) is provided inside the plastic handle (11).
4. A steel strand cutter according to claim 1, characterized in that: Hexagon socket head cap screws (13) are threadedly connected inside the cylinder block (9) and the ear plate (10).
5. The steel strand cutter according to claim 1, wherein: An O-ring (14) and a retaining ring (15) are fixedly connected between the bottom of the piston (4) and the bottom inner wall of the cylinder block (9).
6. The steel strand cutter according to claim 2, wherein: A common flat key (17) is threadedly connected inside the moving cutter (2).