CN113319224B - A hydraulic cable cutter for electric power construction - Google Patents

Abstract

The invention relates to the technical field of electric power auxiliary equipment, and discloses a hydraulic cable cutter for electric power construction, which comprises a hydraulic connection head, the upper end of the hydraulic connection head is fixedly connected with a main body, and a shearing hole is opened in the middle of the main body, so The bottom of the shearing hole is provided with a shearing knife movably installed inside the main body. Through the arrangement of part of the threaded rod, the fixed block and the string, when the second piston moves to the side close to the fixed block, part of the threaded rod rotates, and the winch can be wound up, so that the string is stretched and straightened , which can drive each fixing block to squeeze and shrink to the middle at the same time, and fix the cable to be cut twice to ensure that when the hydraulic pressure pushes the shearing knife to cut the cable, the cable will not be twisted, bent, or even folded in half. If the situation occurs, it can ensure that the cutting edge is perpendicular to the cable line, the incision is neat and smooth, the cutting quality is ensured, and the subsequent construction and installation are ensured smoothly.

Description

A hydraulic cable cutter for electric power construction

technical field

The invention relates to the technical field of electric power auxiliary equipment, in particular to a hydraulic cable cutter for electric power construction.

Background technique

Hydraulic cable cutter is a tool for cutting cables in the process of electric power construction. It can be widely used in ports, electric power, shipbuilding, petrochemical, mining, railway, construction, automobile manufacturing, industrial control, highway, large When using the machinery and equipment required for important industries such as parts transportation, transportation, and various infrastructure projects, first put the cable loop that needs to be cut into the cable shearing groove, and then inject high-pressure liquid into the cylinder. Under the action of hydraulic pressure, the plunger pushes the moving knife to move, and cooperates with the static knife to form a shearing force to cut the cable.

However, the traditional hydraulic cable cutter still has the following deficiencies in the actual working process: in a large power cable manufacturing plant, how to cut and split long-distance power cables, and ensure that the incisions of the power cables are uniform and convenient. Subsequent use is an important research direction. Due to the high accuracy requirements of the cable, the traditional hydraulic cable cutter is relatively simple. When cutting the cable, it is cut from the outer layer to the inner layer, and the cable line is long, which leads to When cutting, the cable is easy to cause slight deformation under the bending force such as its own gravity, so that the cable is prone to slight deviation and inclination, resulting in deviation of the cutting position, which will affect the accuracy of the cutting blade on the optical fiber inside the cable, resulting in the loss of the cable. Internal wires, optical fibers, etc. are too long or too short, which will affect the quality of installation after construction.

SUMMARY OF THE INVENTION

In view of the above-mentioned deficiencies of the background technology, the present invention provides a hydraulic cable cutter for electric power construction, which has the advantages of good clamping effect, vertical shearing, and smooth shearing, and solves the problems raised by the background technology.

The present invention provides the following technical solutions: a hydraulic cable shear for electric power construction, comprising a hydraulic connector, the upper end of the hydraulic connector is fixedly connected with a main body, a shearing hole is opened in the middle of the main body, and the shearing hole is The bottom is provided with a shearing knife that is movably installed inside the main body, the two sides of the middle of the shearing hole are provided with installation grooves, and the outer side of the shearing hole is provided with a movable ring that is movably sleeved with the main body. The two are located on both sides of the axial direction of the shearing hole, the inner part of the movable ring is fixedly connected with a support spring, the bottom end of the support spring is fixedly connected with a support rod, and the bottom of the support rod is fixedly connected with a clamping block , the interior of the main body is provided with a hydraulic cavity surrounding the shear hole, both sides of the hydraulic cavity are movably sleeved with several groups of first pistons, and the outer side of the first piston is fixedly connected with the other end fixed to the movable ring The connecting rod is connected, the hydraulic chamber is provided with a liquid separation chamber on the inner side of the shear hole in the radial direction, the middle part of the liquid separation chamber is movably sleeved with a second piston, and the bottom of the second piston is fixedly connected with a part of the thread Rod, the bottom of the part of the threaded rod is fixedly connected with a winch, the side of the winch is movably sleeved with a thin rope, and the interior of the installation groove is movably sleeved with several groups of fixed blocks arranged in equal circles, the fixed blocks on both sides The middle part is fixedly connected with pulleys.

Preferably, the hydraulic chamber is connected to the hydraulic oil passage, and when the support spring is in an initial state, the support rod is in an extended state.

Preferably, a pressure valve is provided in the middle of the main pipe of the liquid separation chamber.

Preferably, a thread is provided in the middle of the part of the threaded rod, and the part of the threaded rod is threadedly connected to the main body, and the part of the threaded rod is in contact with but not connected to the fixing block corresponding to its end.

Preferably, the string is made of inelastic rope material.

The present invention has the following beneficial effects:

1. Through the setting of the first piston, the movable ring and the clamping block, when the hydraulic oil pressure does not reach the pressure value of the pressure valve, the hydraulic oil first pushes the first pistons on both sides to move to both sides. Both sides of the cable are clamped and fixed, so that during the movement of the movable rings on both sides to both sides, the shearing section of the cable can be stretched, so that the cable in the section to be cut is straight and perpendicular to the shearing. The state of the knife can avoid the twisting and deformation of the cable due to its own gravity, length and other factors, which will affect the shearing quality.

2. Through the setting of some threaded rods, fixed blocks and strings, when the hydraulic oil squeezes the second piston to move toward the side close to the fixed block, part of the threaded rods move down and squeeze the fixed block and rotate at the same time, which can be twisted. The pulley is wound, so that the string is stretched and straightened, which can drive the fixed blocks around the installation groove to squeeze and shrink toward the middle at the same time, and the cable to be cut is fixed for the second time. Therefore, when the hydraulic pressure pushes the shearing knife to cut the cable, the cable will not be twisted, bent, or even folded in half. It can ensure that the cutting blade is perpendicular to the cable, and the incision is neat and smooth. The internal wires and optical fibers of the cable have different sizes and lengths, so as to ensure the cutting quality and ensure the smooth subsequent construction and installation.

Description of drawings

Fig. 1 is the structural representation of the present invention;

2 is a schematic diagram of the interior of the structural installation groove of the present invention;

Fig. 3 is the enlarged schematic diagram of the structure A of the present invention;

Fig. 4 is the enlarged schematic diagram of the structure B of the present invention;

FIG. 5 is an enlarged schematic view of the structure C of the present invention.

In the figure: 1. Hydraulic connector; 2. Main body; 3. Shearing hole; 4. Shearing knife; 5. Active ring; 6. Supporting spring; 7. Supporting rod; 8. Clamping block; 9. Hydraulic chamber ; 10, the first piston; 11, the connecting rod; 12, the liquid separation chamber; 13, the installation groove; 14, the second piston; 15, the part of the threaded rod; 16, the winch; 17, the string; 19. Pulley.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Please refer to Figure 1-5, a hydraulic cable cutter for electric power construction, including a hydraulic connector 1, the upper end of the hydraulic connector 1 is fixedly connected with a main body 2, and a shear hole 3 is opened in the middle of the main body 2. The bottom is provided with a shearing knife 4 that is movably installed inside the main body 2, the two sides of the middle of the shearing hole 3 are provided with installation grooves 13, and the outer side of the shearing hole 3 is provided with a movable ring 5 that is movably sleeved with the main body 2. The number of rings 5 is two and is located on both sides of the axial direction of the shearing hole 3, the inner part of the movable ring 5 is fixedly connected with a support spring 6, the bottom end of the support spring 6 is fixedly connected with a support rod 7, and the bottom of the support rod 7 is fixedly connected There is a clamping block 8, a hydraulic chamber 9 surrounding the shear hole 3 is opened inside the main body 2, and several groups of first pistons 10 are movably sleeved on both sides of the hydraulic chamber 9, and the outer side of the first piston 10 is fixedly connected with another One end of the connecting rod 11 is fixedly connected with the movable ring 5. The hydraulic chamber 9 is provided with a liquid separation chamber 12 on the inner side of the shear hole 3 in the radial direction. A part of the threaded rod 15 is fixedly connected to the bottom of the two pistons 14 , and a winch 16 is fixedly connected to the bottom of the part of the threaded rod 15 . For the fixed blocks 18 arranged in a circle, the middle parts of the two fixed blocks 18 are fixedly connected with pulleys 19 .

Among them, the hydraulic chamber 9 is connected with the hydraulic oil passage. When the support spring 6 is in the initial state, the support rod 7 is in the extended state. By setting the support rod 7, the cable to be cut can be pre-clamped. 9 When hydraulic oil is introduced into the interior, the clamping block 8 can move with the movement of the movable ring 5, and stretch the cable parts, so that the cables are in a straight state, so as to facilitate subsequent fixing and cutting.

Among them, a pressure valve is arranged in the middle of the main pipe of the liquid separation chamber 12, and the clamping block is controlled and controlled by the pressure valve to stretch the cable first, and then clamp the cable for the second time.

Among them, part of the threaded rod 15 is only provided with threads in the middle, and part of the threaded rod 15 is threadedly connected to the main body 2, and part of the threaded rod 15 is in contact with the fixed block 18 corresponding to its end but not connected, and the second piston is squeezed by the hydraulic oil. When the 14 moves to the side close to the fixed block 18, because part of the threaded rod 15 is threadedly connected to the main body 2, the part of the threaded rod 15 moves down and squeezes the fixed block 18 and rotates at the same time, and the winch 16 can be rolled up, so that the thin The rope 17 is stretched and straightened, and can drive the fixing blocks 18 around the installation groove 13 to squeeze and shrink toward the middle at the same time, so as to fix the cable to be cut for a second time.

Among them, the thin rope 17 is made of inelastic rope material. When the winch 16 is reeled, each fixing block 18 is squeezed to ensure that each fixing block 18 can clamp the cable, and because the thin rope 17 has no elasticity Therefore, the clamping force exerted by the thin rope 17 on each fixing block is equal, so that the cable is uniformly stressed during clamping, and there will be no deformation caused by uneven force, so as to ensure the shearing quality.

Working principle, first of all, pass the cable to be cut through the cutting hole 3, and inject hydraulic oil into the hydraulic chamber 9. At the beginning, the hydraulic oil pressure does not reach the pressure value of the pressure valve, so that the hydraulic oil pushes the two sides first. The first piston 10 moves to both sides. Since the clamping block 8 has clamped and fixed the two sides of the cable, the cable can be stretched during the movement of the movable rings 5 on both sides to both sides, so that the cable to be cut can be stretched. The cut cable is straight and perpendicular to the shearing knife, continue to apply hydraulic pressure until the pressure valve is opened, the hydraulic oil enters the liquid separation chamber 12, and squeezes the second piston 14 toward the fixed block 18. As part of the threaded rod 15 is threadedly connected to the main body 2, the part of the threaded rod 15 moves down and squeezes the fixed block 18 and rotates at the same time, so that the winch 16 can be wound up, so that the string 17 is stretched and straightened. The fixed block 18 around the installation groove 13 can be driven to squeeze and shrink toward the middle at the same time, and the cable to be cut can be fixed for the second time. Since the fixed blocks are distributed close to the two sides of the shearing knife 4, the hydraulic pressure pushes the shearing knife 4. When cutting the cable, the cable will not be bent or folded in half. It can ensure that the cutting edge is perpendicular to the cable, the incision is neat and smooth, and there will be no different sizes of wires and optical fibers inside the cable. , to ensure the cutting quality and ensure the smooth subsequent construction and installation.

It should be noted that, in this document, 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 relationship between these entities or operations. any such actual relationship or sequence exists. Moreover, the terms "comprising", "comprising" or any other variation thereof are intended to encompass a non-exclusive inclusion such that a process, method, article or device that includes a list of elements includes not only those elements, but also includes not explicitly listed or other elements inherent to such a process, method, article or apparatus.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, and substitutions can be made in these embodiments without departing from the principle and spirit of the invention and modifications, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (5)

1. A hydraulic cable shear for electric power construction, comprising a hydraulic connector (1), a main body (2) is fixedly connected to the upper end of the hydraulic connector (1), and a shearing hole is opened in the middle of the main body (2). (3), the bottom of the shearing hole (3) is provided with a shearing knife (4) movably installed inside the main body (2), characterized in that: both sides of the middle of the shearing hole (3) are opened There is an installation groove (13), the outer side of the shear hole (3) is provided with a movable ring (5) that is movably sleeved with the main body (2), and the number of movable rings (5) is two and is located in the shear hole (3). ), a support spring (6) is fixedly connected to the inside of the movable ring (5), a support rod (7) is fixedly connected to the bottom end of the support spring (6), and the support rod (7) A clamping block (8) is fixedly connected to the bottom of the main body (2), a hydraulic chamber (9) surrounding the shear hole (3) is opened inside the main body (2), and both sides of the hydraulic chamber (9) are movable sleeves. Several groups of first pistons (10) are connected, the outer side of the first piston (10) is fixedly connected with a connecting rod (11) whose other end is fixedly connected with the movable ring (5), and the inner side of the hydraulic chamber (9) A liquid separation chamber (12) is provided, a second piston (14) is movably sleeved in the middle of the liquid separation chamber (12), and a part of a threaded rod (15) is fixedly connected to the bottom of the second piston (14), A winch (16) is fixedly connected to the bottom of the part of the threaded rod (15), a thin rope (17) is movably sleeved on the side of the winch (16), and several groups are movably sleeved inside the installation groove (13). For the fixed blocks (18) arranged in equal circles, pulleys (19) are fixedly connected to the middle of the fixed blocks (18) on both sides. 2. A hydraulic cable shear for electric power construction according to claim 1, characterized in that: the hydraulic chamber (9) is connected with the hydraulic oil passage, and the support spring (6) is in the initial state, and the support rod ( 7) in the extended state. 3 . The hydraulic cable cutter for electric power construction according to claim 1 , wherein a pressure valve is arranged in the middle of the main pipe of the liquid separation chamber ( 12 ). 4 . 4. A hydraulic cable cutter for electric power construction according to claim 1, characterized in that: a thread is provided in the middle of the part of the threaded rod (15), and the part of the threaded rod (15) is threadedly connected to the main body (2). , the part of the threaded rod (15) is in contact with the fixing block (18) corresponding to its end but is not connected. 5 . The hydraulic cable cutter for electric power construction according to claim 1 , wherein the string ( 17 ) is made of inelastic rope material. 6 .

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