CN113319224B

CN113319224B - Hydraulic cable scissors for electric power construction

Info

Publication number: CN113319224B
Application number: CN202110541215.4A
Authority: CN
Inventors: 刘丽丽
Original assignee: Kuitui Power Supply Co Of State Grid Xinjiang Electric Power Co ltd
Current assignee: Kuitui Power Supply Co Of State Grid Xinjiang Electric Power Co ltd
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2022-09-23
Anticipated expiration: 2041-05-18
Also published as: CN113319224A

Abstract

The invention relates to the technical field of electric power auxiliary equipment and discloses a hydraulic cable shear for electric power construction. Through the partial threaded rod, the fixed block, the setting of string, when the second piston is to being close to fixed block one side removal, take place to rotate in the partial threaded rod, can carry out the rolling to the reel, make the string taut straight, can drive each fixed block and contract to middle extrusion simultaneously, treat the cable conductor of cuting and carry out the secondary and fix, when guaranteeing to promote to cut the sword at hydraulic pressure force and cuting the cable, the cable conductor distortion can not appear, the bending, the condition of fifty percent discount even takes place, can guarantee to cut the incision perpendicular to cable conductor, the incision is neat, it is level and smooth, guarantee to cut the quality, guarantee follow-up smooth construction installation.

Description

Hydraulic cable shears for electric power construction

Technical Field

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

Background

The hydraulic cable shears is a tool for shearing cables in the power construction process, and can be widely applied to mechanical equipment required by important industries such as ports, power, shipbuilding, petrochemical engineering, mines, railways, buildings, automobile manufacturing, industrial control, highways, large-piece transportation and various infrastructure projects.

However, the traditional hydraulic cable shears have the following defects in the actual working process: in large-scale electric power cable manufacturing plant, how to cut the branch to long distance electric power cable and wind, and guarantee that electric power cable's incision is even, it is important research direction to make things convenient for follow-up use, because the cable precision requirement is higher, traditional hydraulic cable cuts comparatively simply, cut from skin toward the inlayer when cuting the cable, and the cable conductor is longer, this just leads to when cuting, the cable conductor leads to slight deformation under bending force such as self gravity easily, thereby the cable takes place slight skew easily, the slope, cause the deviation of cutting position, can influence cutting blade to the precision of the inside optic fibre of cable, lead to cable inside wire, size overlength such as optic fibre or short, influence the quality after the construction is installed.

Disclosure of Invention

Aiming at the defects of the background technology, the invention provides the hydraulic cable shears for electric power construction, which have the advantages of good clamping effect, vertical shearing and smooth shearing, and solve the problems in the background technology.

The invention provides the following technical scheme: a hydraulic cable shear for electric power construction comprises a hydraulic connector, wherein a main body is fixedly connected to the upper end of the hydraulic connector, a shearing hole is formed in the middle of the main body, a shearing knife movably mounted inside the main body is arranged at the bottom of the shearing hole, mounting grooves are formed in the two sides of the middle of the shearing hole, movable rings movably sleeved with the main body are arranged on the outer sides of the shearing hole, the number of the movable rings is two, the movable rings are located on the two axial sides of the shearing hole, a supporting spring is fixedly connected inside the movable rings, a supporting rod is fixedly connected to the bottom end of the supporting spring, a clamping block is fixedly connected to the bottom of the supporting rod, a hydraulic cavity surrounding the shearing hole is formed in the main body, a plurality of groups of first pistons are movably sleeved on the two sides of the hydraulic cavity, and a connecting rod fixedly connected to the other end of each first piston and the movable ring is fixedly connected to the outer side of each first piston, the inboard of hydraulic pressure chamber at shearing hole radial direction is provided with branch sap cavity, the second piston has been cup jointed in the middle part activity of dividing the sap cavity, the partial threaded rod of bottom fixedly connected with of second piston, the bottom fixedly connected with reel of partial threaded rod, the activity of reel side has been cup jointed the string, and the fixed block of circumference range such as a plurality of groups, both sides have been cup jointed in the inside activity of mounting groove the equal fixedly connected with pulley in middle part of fixed block.

Preferably, the hydraulic chamber is connected with a hydraulic oil passage, and the support rod is in an extending state when the support spring is in an initial state.

Preferably, the middle part of the main pipe of the liquid separating cavity is provided with a pressure valve.

Preferably, the middle part of the partial threaded rod is provided with threads, the partial threaded rod is in threaded connection with the main body, and the partial threaded rod is in contact with but not connected with the fixing block corresponding to the end part of the partial threaded rod.

Preferably, the string is made of an inelastic cord material.

The invention has the following beneficial effects:

1. through first piston, the movable ring, the setting of grip block, the pressure value that does not reach the pressure valve at hydraulic oil pressure, make hydraulic oil promote the first piston of both sides earlier and remove to both sides, because the grip block has fixed cable conductor both sides centre gripping, make at both sides activity ring to both sides removal in-process, can cut the section to the cable conductor and stretch, the cable conductor that makes to wait to cut the section is in and straightens, and the state of sword is sheared to the perpendicular to, avoid the cable conductor because self gravity, factors such as length and distortion, deformation, the quality is sheared in the influence.

2. Through the part threaded rod, the fixed block, the setting of string, when hydraulic oil extrusion second piston is to being close to fixed block one side removal, make the part threaded rod move down and take place the rotation when extrudeing the fixed block, can roll the reel, make the string taut straighten, can drive the fixed block around the mounting groove simultaneously to middle extrusion shrink, treat the cable conductor of cuting and carry out the secondary and fix, because the fixed block distributes and is close to the both sides of shearing the sword, so when hydraulic pressure force promotes to shear the sword and cut the cable, the cable conductor distortion can not appear, crooked, the condition emergence of fifty percent discount even, can guarantee to cut the edge of a knife perpendicular to cable conductor, the incision is neat, and is level and smooth, the inside wire of cable can not appear, the condition that size differs in size appears such as optic fibre, ensure to cut the quality, guarantee follow-up smooth construction installation.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the interior of the structural mounting groove of the present invention;

FIG. 3 is an enlarged view of the structure A of the present invention;

FIG. 4 is an enlarged schematic view of structure B of the present invention;

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

In the figure: 1. a hydraulic connector; 2. a main body; 3. shearing holes; 4. a shearing knife; 5. a movable ring; 6. a support spring; 7. a support bar; 8. a clamping block; 9. a hydraulic chamber; 10. a first piston; 11. a connecting rod; 12. a liquid separation cavity; 13. mounting grooves; 14. a second piston; 15. a partially threaded rod; 16. a reel; 17. a string; 18. a fixed block; 19. a pulley.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-5, a hydraulic cable shear for electric power construction comprises a hydraulic connector 1, a main body 2 is fixedly connected to the upper end of the hydraulic connector 1, a shearing hole 3 is formed in the middle of the main body 2, a shearing knife 4 movably mounted inside the main body 2 is arranged at the bottom of the shearing hole 3, mounting grooves 13 are formed in both sides of the middle of the shearing hole 3, a movable ring 5 movably sleeved with the main body 2 is arranged outside the shearing hole 3, the number of the movable rings 5 is two and located on both axial sides of the shearing hole 3, a supporting spring 6 is fixedly connected inside the movable ring 5, a supporting rod 7 is fixedly connected to the bottom end of the supporting spring 6, a clamping block 8 is fixedly connected to the bottom of the supporting rod 7, a hydraulic cavity 9 surrounding the shearing hole 3 is formed inside the main body 2, a plurality of sets of first pistons 10 are movably sleeved on both sides of the hydraulic cavity 9, a connecting rod 11 fixedly connected to the other end of the first piston 10 and the movable ring 5 is fixedly connected to the outside of the first piston 10, the inboard of hydraulic pressure chamber 9 in shearing 3 radial directions in hole is provided with divides liquid chamber 12, divides the middle part activity of liquid chamber 12 to have cup jointed second piston 14, and the bottom fixedly connected with part threaded rod 15 of second piston 14, the bottom fixedly connected with reel 16 of part threaded rod 15, and the activity of reel 16 side has cup jointed string 17, and the inside activity of mounting groove 13 has cup jointed the fixed block 18 that circumference such as a plurality of groups was arranged, the equal fixedly connected with pulley 19 in middle part of both sides fixed block 18.

Wherein, hydraulic pressure chamber 9 is connected with hydraulic pressure oil duct, and supporting spring 6 is when initial condition, and bracing piece 7 is in the state of stretching out, through the setting of bracing piece 7, can treat earlier that the cable conductor of cuting carries out centre gripping in advance, and when hydraulic pressure chamber 9 inside let in hydraulic oil, grip block 8 can remove along with the removal of activity ring 5, to cable conductor spare tensile, makes the cable conductor be in the state of straightening to follow-up fixed, shearing.

Wherein, divide the middle part of liquid chamber 12 house steward to be provided with the pressure valve, control the grip block through the pressure valve and stretch the cable earlier, carry out the secondary centre gripping to the cable conductor again.

Wherein, part threaded rod 15 is only provided with the screw thread at its middle part, and part threaded rod 15 and main part 2 threaded connection, part threaded rod 15 contacts but does not connect with its tip corresponding fixed block 18, when hydraulic oil extrusion second piston 14 was moved to being close to fixed block 18 one side, because part threaded rod 15 and main part 2 threaded connection for part threaded rod 15 moves down and takes place to rotate when extrudeing fixed block 18, can roll hank reel 16, make string 17 taut straight, can drive fixed block 18 around the mounting groove 13 and extrude the shrink to the centre simultaneously, treat that the cable line of cuting carries out the secondary and fixes.

The thin rope 17 is made of an inelastic rope material, when the reel 16 is wound, the fixing blocks 18 are extruded, the fixing blocks 18 can clamp the cable, and the thin rope 17 has no elasticity, so that the clamping force applied to the fixing blocks by the thin rope 17 is equal, the cable is stressed uniformly during clamping, deformation caused by uneven stress is avoided, and the shearing quality is ensured.

The working principle is that firstly, a cable to be cut penetrates through the cutting hole 3, hydraulic oil is injected into the hydraulic cavity 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 first pistons 10 on the two sides to move towards the two sides, as the clamping block 8 clamps and fixes the two sides of the cable, the cable can be stretched in the process that the movable rings 5 on the two sides move towards the two sides, the cable to be cut is stretched and straightened, and is perpendicular to the cutting knife, hydraulic pressure is continuously applied until the pressure valve is opened, the hydraulic oil enters the liquid separation cavity 12, the second piston 14 is extruded to move towards one side close to the fixed block 18, as part of the threaded rod 15 is in threaded connection with the main body 2, the threaded rod 15 rotates while moving downwards to extrude the fixed block 18, the reel 16 can be wound, and the thin rope 17 is tensioned and straightened, can drive fixed block 18 around the mounting groove 13 simultaneously to middle extrusion shrink, treat the cable conductor of cuting and carry out the secondary and fix, because the fixed block distributes and is close to the both sides of cuting sword 4, so when hydraulic pressure force promotes to cut the sword 4 and cut the cable, the cable conductor can not appear crooked, the condition of fifty percent discount takes place, can guarantee to cut the edge of a knife perpendicular to cable conductor, the incision is neat, level and smooth, the inside wire of cable can not appear, the condition that size differs in size appears such as optic fibre, ensure to cut the quality, guarantee follow-up smooth construction installation.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

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

Claims

1. The utility model provides a hydraulic cable shears for electric power construction, includes hydraulic pressure connector (1), the upper end fixedly connected with main part (2) of hydraulic pressure connector (1), the middle part of main part (2) has been seted up and has been sheared hole (3), the bottom of shearing hole (3) is provided with movable mounting and shears sword (4), its characterized in that inside in main part (2): the shearing device is characterized in that mounting grooves (13) are formed in two sides of the middle of the shearing hole (3), movable rings (5) movably sleeved with a main body (2) are arranged on the outer sides of the shearing hole (3), the number of the movable rings (5) is two, the movable rings are located on two axial sides of the shearing hole (3), supporting springs (6) are fixedly connected to the inner portions of the movable rings (5), supporting rods (7) are fixedly connected to the bottom ends of the supporting springs (6), clamping blocks (8) are fixedly connected to the bottoms of the supporting rods (7), hydraulic cavities (9) surrounding the shearing hole (3) are formed in the main body (2), a plurality of groups of first pistons (10) are movably sleeved on two sides of each hydraulic cavity (9), connecting rods (11) fixedly connected to the other ends of the first pistons (10) and the movable rings (5) are fixedly connected to the outer sides of the first pistons, liquid dividing cavities (12) are arranged on the inner sides of the hydraulic cavities (9), divide the middle part activity of sap cavity (12) to cup joint second piston (14), the bottom fixedly connected with part threaded rod (15) of second piston (14), the bottom fixedly connected with reel (16) of part threaded rod (15), reel (16) side activity has cup jointed string (17), and the inside activity of mounting groove (13) has cup jointed fixed block (18) that circumference such as a plurality of groups was arranged, both sides the equal fixedly connected with pulley (19) in middle part of fixed block (18).

2. The hydraulic cable cutter for electric power construction as claimed in claim 1, wherein: the hydraulic cavity (9) is connected with the hydraulic oil duct, and the supporting rod (7) is in an extending state when the supporting spring (6) is in an initial state.

3. The hydraulic cable cutter for electric power construction as claimed in claim 1, wherein: and a pressure valve is arranged in the middle of the main pipe of the liquid distribution cavity (12).

4. The hydraulic cable cutter for electric power construction as claimed in claim 1, wherein: the middle part of the partial threaded rod (15) is provided with threads, the partial threaded rod (15) is in threaded connection with the main body (2), and the partial threaded rod (15) is in contact with a fixing block (18) corresponding to the end part of the partial threaded rod but not connected with the fixing block.

5. The hydraulic cable cutter for electric power construction as claimed in claim 1, wherein: the string (17) is made of an inelastic rope material.