CN2504248Y

CN2504248Y - Hydraulic lifting jack

Info

Publication number: CN2504248Y
Application number: CN 01264845
Authority: CN
Inventors: 秦立方; 钟启宾
Original assignee: LIUZHOU BUILDING MACHINERY GENERAL FACTORY
Current assignee: LIUZHOU BUILDING MACHINERY GENERAL FACTORY
Priority date: 2001-10-12
Filing date: 2001-10-12
Publication date: 2002-08-07
Anticipated expiration: 2011-10-12

Abstract

A hydraulic lifting jack comprises a lifting jack, an upper holding jack, a lower holding jack, an upper holding anchor loosening device, a lower holding anchor loosening device and mounting frame braces, wherein, the lower holding jack connects with the lifting jack via the mounting frame braces; the upper holding anchor loosening device and the lower holding anchor loosening device consist of upper clamping plates 3<1> and 3<2>, lower clamping plates 4<1> and 4<2>, clamping sheets 5<1> and 5<2> with steps, and anchor plates 6<1> and 6<2>; the upper holding jack 1<1> connects via the upper connecting plate, supporting bolts and screw nuts, with the lower connecting plate, and is arranged on the piston of the lifting jack and connects with the threads of the piston, to integrate into the lifting jack; the upper clamping plate connects respectively with the pistons of the upper holding jack and the lower holding jack via threads; the lower clamping plate are respectively sleeved at the flanges of the clamping sheets with steps; the upper clamping plate and the lower clamping plate are connected via bolts and screw nuts and have a fixed distance between. The clamping sheets with steps can move up and down between the upper clamping plate and the lower clamping plate under the thrust of the upper clamping plate or the lower clamping plate. The jack has the advantages of large anchor loosening force, reliable anchor loosening performance, fast load-bearing lowering speed, as well as convenient maintenance of the anchor loosening parts.

Description

The hydraulic pressure lift jack

One, technical field:

The utility model relates to a kind of hydraulic pressure lift facility, particularly a kind of hydraulic pressure lift jack that adopts steel strand as track cable.

Two, background technology:

Existing employing prestress wire comprises the lifting jack as the hydraulic pressure lift jack of track cable, on, following clamping jack, on, following clamping anchor losing machine, spike is installed, following clamping jack links to each other by spike is installed with the lifting jack, on described, following clamping anchor losing machine is by intermediate plate, anchor slab, push pipe is formed (referring to Fig. 2), adopt push pipe formula pine anchor mode, following shortcoming is arranged: 1, owing to adopt the requirement of push pipe formula pine anchor mode, make that the radial dimension of jack is big, the inner structure complexity, and on anchor slab, drill the hole of pull bar, weakened the intensity of load spare; 2,, make for avoiding the too much intensity that weakens load spare that the aperture of wearing pull bar is restricted, the pull bar diameter also is restricted, thereby make the power of backing down intermediate plate can not be excessive owing to need on load spare, to hole; 3, because the restriction of structure, the tube wall of push pipe thin easily in perseveration by bursting; 4, whole push pipe makes normal maintenance intermediate plate below the inside of jack, load spare, and is difficult unusually.

Three, summary of the invention:

Technical problem to be solved in the utility model is: existing employing prestress wire because of inner structure complexity, the loose anchor-hold that adopts push pipe formula pine anchor mode to exist greatly, normally overhauls problems such as difficulty inadequately, provides that bigger, the loose anchor of a kind of loose anchor-hold is reliable as the hydraulic pressure lift jack of track cable, band carries that lowering velocity is fast, hydraulic pressure lift jack is easily overhauled at the anchor losing machine position.

For this reason, solution of the present utility model is: change the push pipe formula pine anchor mode that adopts into clip type pine anchor mode, its concrete technical scheme is:

A kind of hydraulic pressure lift jack, comprise the lifting jack, on, following clamping jack, on, following clamping anchor losing machine, spike is installed, following clamping jack is installed in to install on the connecting panel and by spike is installed by studdle and links to each other with the lifting jack, it is characterized in that: on described, following clamping anchor losing machine is respectively by train wheel bridge, lower plate, intermediate plate with the level, anchor slab is formed, last clamping jack passes through upper junction plate, studdle, thereby nut links to each other on the jack piston and with piston thread bonded assembly lower connecting plate and the lifting jack fuses with being installed in to promote, train wheel bridge by screw thread respectively with last, the piston of following clamping jack connects, lower plate entangles the flange place of intermediate plate with the level respectively, use bolt between train wheel bridge and the lower plate, the nut connection also is maintained fixed distance, pushing away under the band of train wheel bridge or lower plate, intermediate plate with the level can be on anchor slab reaches, move up and down between the lower plate.

Because the hydraulic pressure lift jack of the utility model adopts clamping plate type pine anchor mode structure, thereby compare with the existing hydraulic pressure lift jack of push pipe formula pine anchor mode structure that adopts, have the following advantages: 1, its loose anchor structure above load spare, the outside, loose anchor position is easy to maintenance, observation, features simple structure, the easy accessibility of jack simultaneously; 2, be used to hold in the palm the wall thickness increase at double of the comparable push pipe of size of the last lower plate of loose intermediate plate during loose anchor, thereby loose anchor-hold increases greatly; 3, the increase of loose anchor-hold makes loose anchor watch carry the speed of transferring and be improved, thereby make this product that more application fields be arranged for reliable, equipment band under the clamping plate type pine anchor mode.

Four, description of drawings:

Fig. 1: the hydraulic pressure lift jack structure scheme drawing of the utility model;

Fig. 2: existing hydraulic pressure lift jack structure scheme drawing.

Among Fig. 2: 16 ₁, 16 ₂-studdle, 17 ₁, 17 ₂-intermediate plate screw, 18 ₁, 18 ₂, 19 ₁, 19 ₂-regular nut, 20 ₁, 20 ₂-OVM instrument intermediate plate, 21 ₁, 21 ₂-piston anchor slab, 22 ₁, 22 ₂-loose anchor tie, 23 ₁, 23 ₂-loose anchor push pipe, 24 ₁, 24 ₂-push pipe adapter plate, 25 ₁, 25 ₂-screw, 26 ₁, 26 ₂-push pipe supporting plate, 27-jigger lifting piston, 28-lifting jack, 29-spike.

Five: the specific embodiment:

Embodiment:

A kind of hydraulic pressure lift jack comprises the lifting jack, upper and lower clamping jack, and upper and lower clamping anchor losing machine is installed spike, following clamping jack 1 ₂By studdle 7 ₂Be installed in connecting panel 14 is installed ₂Upward and by spike 11 is installed link to each other with lifting jack 10, described upper and lower clamping anchor losing machine is respectively by train wheel bridge 3 ₁, 3 ₂, lower plate 4 ₁, 4 ₂, intermediate plate 5 with the level ₁, 5 ₂,

anchor slab

6 ₁, 6 ₂Form last clamping jack 1 ₁By upper junction plate 14 ₁, studdle 7 ₁, thereby nut 8 links to each other on the jack piston 9 and with piston thread bonded assembly lower connecting plate 15 and lifting jack 10 fuses the train wheel bridge 3 of upper and lower clamping anchor losing machine with being installed in to promote ₁, 3 ₂By screw thread respectively with upper and lower clamping jack 1 ₁, 1 ₂Piston 2 ₁, 2 ₂Connect lower plate 4 ₁, 4 ₂Entangle intermediate plate 5 with the level respectively ₁, 5 ₂The flange place, use bolt 12 between train wheel bridge and the lower plate respectively ₁, 12 ₂,

nut

13 ₁, 13 ₂Connection also is maintained fixed distance, and pushing away under the band of train wheel bridge or lower plate, intermediate plate with the level can move up and down between anchor slab and upper and lower clamping plate.

Working process is as follows:

During lifting: be provided with pressure oil to promoting jack 10, carrier cable is brought into the anchor slab 6 of clamping anchor losing machine under bearing load ₁The tight carrier cable of interior anchor promotes the with the level intermediate plate 5 of jack piston 9 with the tight track cable of anchor ₁, anchor slab 6 ₁Stretch cylinder, thereby pulling weight upward movement when arriving desired location, promote jack piston 9 and stop action, promotes the following clamping jack 1 of jack 10 belows ₂Valve piston move downward, initiatively with intermediate plate 5 with the level ₂Be pressed into down the anchor slab 6 of clamping anchor losing machine ₂In clamp carrier cable, promote subsequently jack piston 9 contract cylinder, utilize carrier cable will promote the intermediate plate with the level 5 of jack 10 tops ₁Behind the pine of top, promote the last clamping jack 1 of jack 10 tops ₁Valve piston contract cylinder, at lower plate 4 ₁Jacking is down initiatively with cable wire top pine, intermediate plate 5 with the level ₁Reliably from anchor slab 6 ₁In take out of, make when promoting jack piston 9 and contracting cylinder, carrier cable can spue smoothly, circulating so successively puts in place until weight is promoted.

During decline: initial position, promote jack piston 9 earlier with the tight track cable of anchor on the intermediate plate with the level 5 of clamping anchor losing machine ₁, anchor slab 6 ₁Cable wire stretch cylinder one segment distance, the following intermediate plate 5 of clamping anchor losing machine ₁Behind the band pine, lower plate 4 ₂Upward movement, failure-free will promote the intermediate plate with the level 5 of jack 10 belows ₂From anchor slab 6 ₂In take out of, subsequently, promote the with the level intermediate plate 5 of jack piston 9 with the tight track cable of anchor ₁, anchor slab 6 ₁The cylinder that contracts, the weight on the cable wire together descend thereupon, when dropping to desired location, promote the following clamping jack 1 of jack 10 belows ₂Valve piston motion, initiatively with intermediate plate 5 with the level ₂Be pressed into anchor slab 6 ₂In clamp carrier cable, promote jack piston 9 cylinder that contracts then and utilize carrier cable will go up the intermediate plate with the level 5 of clamping anchor losing machine ₁At anchor slab 6 ₁Middle top pine, the last clamping jack 1 of lifting jack 10 tops ₁Valve piston motion, initiatively with intermediate plate 5 with the level ₁Take anchor slab 6 out of ₁, promote jack piston 9 and stretch cylinder to desired location, promote the last clamping jack 1 of jack 10 tops ₁Valve piston motion, initiatively will go up the intermediate plate with the level 5 of clamping anchor losing machine ₁Be pressed into anchor slab 6 ₁Repeat the fwd action again behind the interior clamping carrier cable, circulate so successively until weight being dropped to the requirement position.

Claims

1, a kind of hydraulic pressure lift jack comprises the lifting jack, upper and lower clamping jack, and upper and lower clamping anchor losing machine is installed spike, following clamping jack (1 ₂) by studdle (7 ₂) be installed in connecting panel (14 is installed ₂) upward and by spike (11) is installed link to each other with lifting jack (10), it is characterized in that: described upper and lower clamping anchor losing machine is respectively by train wheel bridge (3 ₁), (3 ₂), lower plate (4 ₁), (4 ₂), intermediate plate (5 with the level ₁), (5 ₂), anchor slab (6 ₁), (6 ₂) form last clamping jack (1 ₁) by upper junction plate (14 ₁), studdle (7 ₁), nut (8) be installed in promote that jack piston (9) is gone up and with piston thread bonded assembly lower connecting plate (15) thus link to each other and lifting jack (10) fuses the train wheel bridge (3 of upper and lower clamping anchor losing machine ₁), (3 ₂) by screw thread respectively with upper and lower clamping jack (1 ₁), (1 ₂) piston (2 ₁), (2 ₂) connect lower plate (4 ₁), (4 ₂) entangle intermediate plate (5 with the level respectively ₁), (5 ₂) the flange place, use bolt (12 between train wheel bridge and the lower plate respectively ₁), (12 ₂), nut (13 ₁), (13 ₂) connect and be maintained fixed distance, pushing away under the band of train wheel bridge or lower plate, intermediate plate with the level can move up and down between anchor slab and upper and lower clamping plate.