CN203437561U

CN203437561U - High-strength hydraulic guide wire breaking device

Info

Publication number: CN203437561U
Application number: CN201320420406.6U
Authority: CN
Inventors: 郑立平; 华斌; 夏顺俊; 洪万根
Original assignee: Jiangsu Power Transmission & Transformation Corp; State Grid Corp of China SGCC; State Grid Jiangsu Electric Power Co Ltd
Current assignee: Jiangsu Power Transmission & Transformation Corp; State Grid Corp of China SGCC; State Grid Jiangsu Electric Power Co Ltd
Priority date: 2013-07-16
Filing date: 2013-07-16
Publication date: 2014-02-19
Anticipated expiration: 2023-07-16

Abstract

The utility model discloses a high-strength wire hydraulic wire breaker, which comprises a machine base, a knife holder, hydraulic scissors and a motorized hydraulic pump. The knife holder and the hydraulic scissors are arranged on the machine base, and the machine base It is connected with the motor hydraulic pump through a quick connector. Preferably, the number of said quick connectors is 2. The high-strength wire hydraulic wire breaker of the utility model has a good breaking effect on large-span wires. It has a novel structure, simple operation, safety and reliability, and is light and unrestricted by the operation direction. It can be used in different occasions and is easy to maintain. .

Description

A kind of high-strength conductor hydraulic pressure wire clipper

Technical field

The utility model belongs to transmission line of electricity devices field, is specifically related to a kind of high-strength conductor hydraulic pressure wire clipper.

Background technology

China's super-pressure, UHV transmission line are built develop rapidly at present.As power line construction unit, in for large span unfolding conductor wire process, the cut-out of wire is faced to very hang-up, due to this type of wire, to have cross section large, particularly the steel strand wires monofilament of wire inside is thick, radical is many, belong to high-tensile steel wires, therefore with general our conventional hydraulic pressure scissors, cannot cut-off wire.Tracing it to its cause is because conventional hydraulic pressure scissors cutter chamber is little, and specified shear strength is well below necessary requirement, and existing several hydraulic pressure scissors, are also because shear strength is inadequate, and cannot meet the demands.Therefore in this type of current work, have to use at the scene abrasive wheel cutting machine to cut large span wire.Like this efficiency in work progress and flexibility have been caused to very big inconvenience, particularly high-altitude broken string cannot carry out at all.

Utility model content

The purpose of this utility model is for above-mentioned the deficiencies in the prior art, utilizes engine-driven hydraulic pump as hydraulic power, and a kind of Portable hydraulic wire clipper is provided, and it is connected with two oil delivery hoses on engine-driven hydraulic pump, realizes the broken string work to large span wire.

For achieving the above object, technical solution adopted in the utility model is as follows:

A kind of high-strength conductor hydraulic pressure wire clipper, comprise support, knife rest, engine-driven hydraulic pump and hydraulic pressure scissors, wherein said knife rest and described hydraulic pressure scissors are arranged at described support front end, and described engine-driven hydraulic pump is arranged at described support rear end, and are connected with support by the snap joint of support end.

Further, described support comprises 8-shaped fixed head, bottom, snap joint, precursor, axle sleeve and dead knife bar, and wherein support rear end is provided with snap joint, 8-shaped fixed head and bottom, the fixing described bottom of described 8-shaped fixed head and snap joint; Described bottom covers the outside at described precursor; Support front end is provided with dead knife bar, and for fixed hydraulic scissors, the two ends of described dead knife bar are connected with described axle sleeve respectively.

Further, described knife rest comprises guiding pressing plate, clamping plate, latch, steady pin and chain, and wherein said guiding pressing plate is arranged on described axle sleeve, and described clamping plate are arranged at the outside of described guiding pressing plate; Described latch is arranged on a side shaft and puts, and described steady pin is arranged on opposite side axle sleeve, and described latch is connected with described chain.

Further, described knife rest also comprises flexible fastening pin, and described flexible fastening pin is arranged on described axle sleeve.

Further, described engine-driven hydraulic pump comprises the pump housing, piston, oil return pipe, back leakage connection and cutting blade oriented tube, and wherein, the described pump housing can be connected with described support by described snap joint; Described piston is arranged in described precursor, and the end of described oil return pipe is connected with described snap joint, and described back leakage connection is connected with the front end of described oil return pipe, and fixes by back leakage connection and precursor.

Further, described hydraulic shear cutter spacing, in described axle sleeve, comprises cutting blade and ledger-plate, and described cutting blade is arranged at the front end of described piston, and described ledger-plate is arranged on described dead knife bar, and cutting blade oriented tube is connected with cutting blade.

Further, between the rear end of described precursor and described piston, be provided with back-up ring.

Further, between described bottom and described piston, between described bottom and described precursor, between described back-up ring and described piston, be provided with O RunddichtringO.

The beneficial effects of the utility model are: 1. high-strength conductor hydraulic pressure wire clipper of the present utility model has and cut-offs preferably effect for large span wire, and its novel structure is simple to operate, safe and reliable, and not limited by direction of operating, can use in different occasions, easy to maintenance.2. knife rest of the present utility model is embedded blade bolt-type design, the blade of this pattern can bear enormous impact power, and blade is not subject to pulling force, is only stressed, force-bearing situation is best, in the connection design of latch, more firmly can solve the problem of connector breaking releasing.

Accompanying drawing explanation

Fig. 1 is the overall structure schematic diagram of the utility model high-strength conductor hydraulic pressure wire clipper.

Fig. 2 is that the utility model high-strength conductor hydraulic pressure wire clipper is along the sectional schematic diagram of A-A line in Fig. 1.

Fig. 3 is that the utility model high-strength conductor hydraulic pressure wire clipper is along the sectional schematic diagram of B-B line in Fig. 2.

Fig. 4 is that the utility model high-strength conductor hydraulic pressure wire clipper is along the sectional schematic diagram of C-C line in Fig. 2.

Fig. 5 is that the utility model high-strength conductor hydraulic pressure wire clipper is along the sectional schematic diagram of D-D line in Fig. 2.

The specific embodiment

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is described in further detail.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.

High-strength conductor hydraulic pressure wire clipper of the present utility model as shown in Figure 1, comprise support, knife rest, hydraulic pressure scissors and engine-driven hydraulic pump, with regard to whole device general direction, engine-driven hydraulic pump position is defined as the rear extreme direction of whole device, and hydraulic pressure scissors position is defined as the front extreme direction of whole device.Described knife rest and described hydraulic pressure scissors are arranged at described support front end, and described engine-driven hydraulic pump is arranged at described support rear end, and are connected with support by the snap joint of support end.As preferably, the number of described snap joint is 2.

Fig. 2 be the utility model high-strength conductor hydraulic pressure wire clipper along the sectional drawing of A-A line in Fig. 1, Fig. 3 is that the utility model high-strength conductor hydraulic pressure wire clipper is along the sectional drawing of B-B line in Fig. 2.As shown in Figures 2 and 3, support comprises 8-shaped fixed head 2, bottom 4, snap joint 1, precursor 9, axle sleeve 16 and dead knife bar 25; Wherein centered by precursor 9; the outside, rear end of precursor 9 is covered with bottom 4; bottom 4 ends are fixed with snap joint 1 by 8-shaped fixed head 2; support front end is provided with dead knife bar 25; for fixed hydraulic scissors; the two ends, left and right of dead knife bar 25 are connected with axle sleeve 16 respectively, and axle sleeve 16 is connected with precursor 9 by pin, plays more protection.

Fig. 4 be the utility model high-strength conductor hydraulic pressure wire clipper along the sectional drawing of C-C line in Fig. 2, Fig. 5 is that the utility model high-strength conductor hydraulic pressure wire clipper is along the sectional drawing of D-D line in Fig. 2.As Figure 1-Figure 5, knife rest comprises the first guiding pressing plate 17, the second guiding pressing plate 23, clamping plate 24, latch 20, steady pin 15 and chain 29, wherein the first guiding pressing plate 17 and the second guiding pressing plate 23 are arranged at respectively on axle sleeve 16 left and right sides, and clamping plate 24 are arranged at respectively the outside of the first guiding pressing plate 17 and the second guiding pressing plate 23; Latch 20 is arranged on the axle sleeve of a side, and steady pin 15 is arranged on opposite side axle sleeve, and latch 20 is connected with described chain 29.

Knife rest also comprises the first flexible fastening pin 19, the second flexible fastening pin 21 and the 3rd flexible fastening pin 27, the first flexible fastening pin 19 and the second flexible fastening pin 21 are arranged on described axle sleeve 16 left and right sides, for fixing the first guiding pressing plate 17 and the second guiding pressing plate 23; As preferably, on axle sleeve, be also provided with screw 18, for fixing the first guiding pressing plate 17 and the second guiding pressing plate 23; For fixing chain 29, on axle sleeve, arrange flexible fastening pin jack 30, the first flexible fastening pins 19 and the second flexible fastening pin 21 insert flexible fastening pin jacks 30 can chain 29 is fixing.

Engine-driven hydraulic pump comprises the pump housing, piston 8, oil return pipe 3, back leakage connection 11 and cutting blade oriented tube 22, and its middle pump body can be connected with support by snap joint 1; Piston 8 is arranged on precursor 9 inside, and the end of oil return pipe 3 is connected with snap joint 1, and the front end of oil return pipe 3 is connected with back leakage connection 11, and fixes by back leakage connection 11 and precursor; Oil return pipe 3 ends arrange oil return screw jack 31, and oil return screw jack 31 has positioning action, and oil return screw 10 inserts oil return screw jack 31 oil return pipe 3 is connected with snap joint 1,10 on-off actions of oil return screw.

Hydraulic shear cutter spacing, in axle sleeve 16, comprises cutting blade 26 and ledger-plate 28, and wherein cutting blade 26 is arranged at the front end of described piston 8, by flexible fastening pin 27, is fixed on piston 8, and ledger-plate 28 is arranged on dead knife bar 25, for fixing cutting blade 26; Cutting blade oriented tube 22 is connected with cutting blade 26.

For guaranteeing the sealing reliability of this wire clipper, can between the rear and front end of precursor 9 and piston 8, the first back-up ring 6, the second back-up ring 12 be set respectively, surrounding at steady pin 15 arranges shaft block ring 14, between bottom 4 and piston 8, O RunddichtringO 5 is set, between bottom 4 and precursor 9, arrange between O RunddichtringO 7, the second back-up ring back-up rings 12 and piston 8 and be provided with O RunddichtringO 13.

According to the two-tube asphalt principle of engine-driven hydraulic pump, wire clipper actuator cylinder is designed to single-piston rod, two-way operation form.Can make like this blade feed and withdrawing complete by hydraulic operation, because withdrawing is completed and can be avoided the remaining aluminum steel of the edge of a knife to consider swaging clamp to be worth doing and cause withdrawing difficulty phenomenon completely by hydraulic operation.

The concrete steps of using high-strength conductor hydraulic pressure wire clipper of the present utility model to cut off heavy in section twisted wire are:

1. extract afterbody snap joint dust cap, engine-driven hydraulic pump is connected with snap joint;

2. start engine-driven hydraulic pump, pull reversal valve and make scissor blade retreat into the end (reversal valve is in meta off-load armed state);

3. extract latch, upset knife rest is put into and is sheared thing, and the knife rest that closes, pushes latch and put in place;

4. pulling reversal valve shears;

5. after shearing, pull reversal valve and make blade retreat into the end, after removing knife rest, blade detritus, can repeat operation.

Above action need 2 people complete, the hand-held wire clipper of a people, and another people operates engine-driven hydraulic pump, and instruction is sent by hand-held wire clipper operator, and engine-driven hydraulic pump operator accepts instruction and completes broken string work.

High-strength conductor hydraulic pressure wire clipper of the present utility model can be to UHV transmission line heavy in section steel-cored aluminium strand, and high-strength aluminum alloy steel-cored aluminium strand and steel strand wires carry out THE ADIABATIC SHEAR IN.Be specially adapted to marcottage, a large amount of THE ADIABATIC SHEAR IN of tension field crimping operation to wire.Be applicable to the shearing of job site to all kinds of steel wire ropes, low-carbon (LC) round steel, power cable simultaneously.

The foregoing is only preferred embodiment of the present utility model, be not used for limiting practical range of the present utility model; If do not depart from spirit and scope of the present utility model, the utility model is modified or is equal to replacement, all should be encompassed in the middle of the protection domain of the utility model claim.

Claims

1. A high-strength wire hydraulic wire breaker, characterized in that it includes a machine base, a tool rest, a motorized hydraulic pump and hydraulic scissors, wherein the knife rest and the hydraulic scissors are arranged at the front end of the machine base, and the The motorized hydraulic pump is arranged at the rear end of the machine base, and is connected with the machine base through a quick joint at the end of the machine base. the

2. The high-strength wire hydraulic wire breaker according to claim 1, characterized in that, the base includes a figure-eight fixed plate, a bottom cover, a quick connector, a front body, a shaft sleeve and a fixed blade seat, wherein the front body The outer cover of the rear end is combined with a bottom cover, and the end of the bottom cover is provided with an 8-shaped fixing plate, which can be used to fix the quick connector. The front end of the base is provided with a fixed blade seat for fixing hydraulic scissors. The shaft sleeve is connected, and the shaft sleeve is connected with the front body by a pin. the

3. The high-strength wire hydraulic wire breaker according to claim 2, characterized in that the tool holder includes a first guide plate, a second guide plate, a splint, a bolt, a fixing pin, a chain, and a first elastic fixing pin , the second elastic fixing pin and the third elastic fixing pin, wherein the first guide plate and the second guide plate are respectively arranged on the left and right sides of the bushing, and the splints are respectively arranged on the outside of the first guide plate and the second guide plate, The first elastic fixing pin and the second elastic fixing pin are arranged on the left and right sides of the shaft sleeve for fixing the first guide plate and the second guide plate, the bolt is arranged on one side of the axle sleeve, and the fixing pin is arranged on the other On one side of the axle sleeve, the bolt is connected with the chain. the

4. The high-strength wire hydraulic wire breaker according to claim 2, wherein the motorized hydraulic pump includes a pump body, a piston, an oil return pipe, an oil return joint and a moving blade orientation pipe, wherein the pump body can pass through The quick joint is connected with the engine base, the piston is set inside the front body, the front end of the oil return pipe is connected with the oil return joint, and is fixed with the front body through the oil return joint, the end of the oil return pipe can be connected with the quick joint, and the oil return pipe is provided with an oil return joint. Screw socket, the oil return screw is inserted into the oil return screw socket to connect the oil return pipe with the quick connector. the

5. The high-strength wire hydraulic wire breaker according to claim 4, characterized in that, the hydraulic scissors are located in the shaft sleeve and include a moving blade and a fixed blade, wherein the moving blade is arranged at the front end of the piston, and the third elastic The fixed pin is fixed on the piston, and the fixed blade is arranged on the fixed blade seat for fixing the movable blade; the directional tube of the movable blade is connected with the movable blade. the

6. The high-strength wire hydraulic wire breaker according to any one of claims 1-5, characterized in that the number of said quick connectors is preferably two. the

7. The high-strength wire hydraulic wire breaker according to claim 3, characterized in that, the bushing is also provided with screws for fixing the first guide plate and the second guide plate; to fix the chain, on the shaft An elastic fixing pin jack is arranged on the sleeve, and the first elastic fixing pin and the second elastic fixing pin can be inserted into the elastic fixing pin jack to fix the chain. the

8. The high-strength wire hydraulic wire breaker according to claim 3, characterized in that, a first stop ring is arranged between the rear end of the front body and the piston, and a first retaining ring is arranged between the front end of the front body and the piston. There is a second stop ring, and a shaft stop ring is provided around the fixed pin. the

9. The high-strength wire hydraulic wire breaker according to claim 8, characterized in that O type sealing ring. the