CN201420238Y - Multifunctional repair car for deck bridge of railway - Google Patents

Abstract

The utility model relates to a multifunctional repair car for a deck bridge of a railway, consisting of a walking part, a suspension arm rotating and leveling part, a lifting suspender and overturningpart, a steel rope safety lock and safety steel rope hoisting part, an underbridge repair fence rotating and connecting part, a power and hydraulic control part and an electric operating part. The utility model provides a novel bridge repair device which ensures safe operation, is suitable for different girder heights, different girder types and a plurality of bridges for the repair work of deckbridges (comprising deck arch bridges) of the railway.

Description

Railway deck type bridge multifunctional examining repairs

Technical field

The utility model belongs to railroad bridge repair apparatus field, and particularly a kind of railway deck type bridge multifunctional examining repairs.

Background technology

The present situation of China railways deck type bridge tool car is except that the WJZ type can realize that a car multi-hole beam is used, still adopt the maintenance mode on one hurdle, a hole mostly, it must be laid on beam and articulate the maintenance that rail carries out reinforced concrete beam, and the large-scale bridge of railway Deck Arch Bridges adopts the mode that installs and fixes inspection platform along arch, and middle-size and small-size arch bridge does not have repair apparatus.The bridge maintenance mainly is to carry out in conjunction with the maintenance in spring and autumn, it is serious because of the corrosion of exposing to the sun and rain to connect the repair apparatus that hangs on the beam, the cost of investment of bridge repair apparatus is too big, remove indivedual girder steels, outside reinforced concrete beam was equipped with, most of bridge still failed to be equipped with repair apparatus, enforcement along with Heavy-Haul Railway speed-raising measure, heightening of bridge quantity, development a tractor serves several purposes, especially medium and small arch bridge repair apparatus are the needs that guarantee railway operation safety and reduce the bridge cost of overhaul.

Summary of the invention

The technical problem that the utility model solves: provide a kind of railway deck type bridge multifunctional examining to repair, for providing a kind of, railway deck type bridge (comprising Deck Arch Bridges) upkeep operation can guarantee job safety, adapt to different deck-moldings, different beam types, and the novel bridge repair apparatus of the many bridges uses of a machine.

Technical solution of the present utility model: a kind of railway deck type bridge multifunctional examining repairs, by running part, hang that the arm rotation changes and leveling part, lifting suspension rod and flip portion, wire rope safety lock and safe wire rope elevator part, bridge under the rotation commentaries on classics of maintenance hurdle and coupling part, power and hydraulic control part, electrically operated part totally eight parts form; Described running part is bearing on two one steel rails of railway by the rail car trucks of railcar traction, two parallel rails and two ends car bumper and connecting rod are installed in trailer top, the traveling trailer wagon is bearing on the rail by two pairs of travelling wheels, be connected in traveling vehicle frame end by the traveling hydraulic motor, drive wire rope traveling Volume tube, traveling Volume tube two ends wire rope is connected with car bumper and connecting rod respectively, the vertical traveling of tow out driving frame; Describedly hang that the arm rotation changes and the leveling part is hung the arm rotation and changeed the center axle bed by installing in the middle of the traveling vehicle frame top; hanging the arm rotation changes on the axle bed of center pin joint and hang the arm rotation and change central axis; hanging the arm rotation changes central axis and trap and debug the upright cover of flat cross, the vertical and horizontal of leveling cross are a pair of leveling hydraulic cylinder of pin joint respectively, the piston rod pin joint hydraulic cylinder supporting leg of leveling hydraulic cylinder is on vehicle frame top; hanging the arm rotation changes central axis middle part cover dress rotation commentaries on classics fixed gear, be spirally connected and be bearing in leveling cross top; hang top and the upright cover of hydraulic oil container middle part welding suit that the arm rotation changes central axis, the hydraulic oil container two middle side parts welding riser left side that is spirally connected respectively, right fixedly arm, both sides are the following middle part of arm mounting support steel ball seat fixedly, steel ball supporting Zai rotation changes in the deep-slotted chip breaker of fixed gear upper end, fixedly the output shaft keyed jointing driving gear of a side lower part Luo Jie rotation rotating hydraulic motor ， rotation rotating hydraulic motor of arm drives fixedly Diao Bei rotation commentaries on classics Yu rotation changes the fixed gear engagement; Described lifting suspension rod and flip portion are installed a pair of change gear in the nearly bridge stage casing of moving arm, the external part of moving arm is bearing on the outer end roller that is pinned at fixing arm, flexible hydraulic motor is installed at moving arm middle part, the moving arm of tooth bar engagement driving on arm top is fixedly stretching on the arm keyed jointing gear with being screwed onto fixedly on the hydraulic motor output shaft of stretching, the external part top of the moving arm upset axis pin base that is spirally connected, the a pair of flange that is spirally connected on the pin joint inversion boot connects bearing pin, flange connects the bearing pin projecting shaft cover for seat dress band tooth Volume tube of bearing pin, upset hydraulic cylinder cylinder end pin joint middle part under moving arm, the piston rod hanger pin of upset hydraulic cylinder is connected on the inversion boot bottom, and the telescopic tube of handling inversion boot and suit thereof and moving arm are articulated to the parallel 90 ° of upsets that articulate by vertical; Described wire rope safety lock and safe wire rope elevator part are by lifting hydraulic motor keyed jointing wire rope Volume tube, be installed in the inversion boot outer end, Volume tube shaft extension goes out initiatively vee-pulley of bearing support outer end keyed jointing, the passive vee-pulley composition band transmission that V-belt and driving gear outer end are spirally connected is installed, the power transmission shaft of keyed jointing driving gear stretches out other end axle bed keyed jointing other end driving gear, driving gear and the gears engaged of being with on the tooth Volume tube, the rotation of drive belt teeth Volume tube, lifting wire rope one end is connected on the lifting Volume tube, the other end installs around behind the pulley of pin joint on the pulley base that welds under the interior pipe of telescopic tube and is connected on the inversion boot, pulley base lower end pin joint suspension bracket, driving tooth and crank are installed on the suspension bracket, the tooth portion of driving tooth and crank axle gear shaft down and the rotation fixed gear engagement that is connected under the shackle shaft, driven by shaking suspension bracket rotation, the maintenance hurdle is installed in the suspension bracket and is articulated on four pairs of change gears of pin joint on the suspension bracket under the bridge; Bottom, inversion boot both sides is spirally connected respectively and handles regulating wheel by safety lock, the wire rope safety lock that the jam-packed lifting wire rope is handled, and the safe wire rope lower end of both sides is connected on the pulley base, and the upper end is connected on the band tooth Volume tube, with the telescopic tube synchronization lifting; Described power and hydraulic control part, motor or internal combustion engine are installed in one end top of hydraulic oil container, motor or the internal combustion engine output flange form pump seat that is spirally connected, on the flange form pump seat with motor or the coaxial duplex hydraulic pump that is spirally connected of internal combustion engine, its output shaft and duplex hydraulic pump power shaft keyed jointing shaft coupling drive, the other end is installed the valve seat case, and control valve is spirally connected on the valve seat; Described electric control system is installed electric control box in the hydraulic oil container end, hang the commentaries on classics of arm rotation by left and right under the bridge, three the combination button controller controls in top, and inversion boot and the telescopic tube upset that installs are moved the flexible of arm, the lifting on maintenance hurdle under the bridge.

Described wire rope safety lock, the middle part welding of following seat board is upright to processing wedge groove, the channel of horizontal level of processing square groove, install control stick in the horizontal square groove, control stick is upright to the upright groove of middle part processing, be processed as the step on band inclined-plane on the groove, the drift major part is last, the microcephaly under be installed in the upright groove of wedge groove and control stick, its circular arc circle centre position upper bore is installed bearing pin, both sides suit axle sleeve is articulated in the top of control stick, the left end welding of following seat board installs the guide holder of control stick, right-hand member Weld-supporting iron, control stick right-hand member suit stage clip, spring abutment is screwed onto supporting iron outer end by bolt, under the effect of stage clip, a control stick left side pushes away, drift falls its safe wire rope that installs around is pressed to the wedge groove, install around the safe wire rope of drift, the one end is connected on the welding hanger pin of pulley base through the lower sheave guiding, and symmetrical pin connects following four pulleys on the plate, another lower sheave of other end solderless wrapped connection of safe wire rope, after installing around the top sheave of its homonymy again, after installing around the opposite side top sheave more from top to bottom, on be connected on the band tooth Volume tube, four of symmetrical pin joint pulleys retrain safe wire rope up and down; Upper base plate is screwed onto channel top, and the upper and lower pin that its drift installs is installed on respectively in the upright slotted hole of processing on the plate center line up and down, prevents the drift beat.

Under bridge, in the maintenance hurdle hurdle of increasing is arranged, and increasing the hurdle is articulated on the inboard channel-section steel of upper chord of two truss on maintenance hurdle under the bridge by walking frame by two pairs of travelling wheels, articulate walking frame in the truss, suit increases hurdle Xia Lan in the walking frame, increase under the hurdle hurdle on the hurdle that increases of two pedals of suit bottom pin joint in the hurdle, and penetrate by a pair of long cross-arm and a pair of hyphen load on the both sides on hurdle in or down square hole be articulated on the frame.

The utility model compared with prior art has following obvious advantage:

1, the many bridge blocks of a machine use, and rail is not installed on bridge, can reduce the bridge recondition expense significantly;

2, the scope of application is wide, all can overhaul deck type bridges such as truss bridge, rc beam bridge, reinforced concrete arch bridge, stone arch bridges;

3, mechanization degree height, inspection speed is fast, and labour intensity is little;

4, maintenance hurdle under the bridge, increase the hurdle, guardrail height meets safety requirements, and be provided with the wire rope safety lock, when being returned to the railcar travel position, each moving component and contact net distance are all greater than two meters, replying each parts of back all is in the vehicle gauge of the locomotive, therefore, the security reliability height in the operation.

Description of drawings

Fig. 1: the utility model travel position front view;

Fig. 2: job state front view on the utility model bridge;

The A of Fig. 3: Fig. 2 is to schematic diagram;

Fig. 4: connect in the maintenance hurdle bridge under the bridge of both sides and increase the hurdle connection diagram;

Fig. 5: the utility model increases maintenance hurdle connection diagram under hurdle and the bridge;

Fig. 6: the utility model wire rope safety lock floor map;

The B-B generalized section of Fig. 7: Fig. 6;

Fig. 8: the utility model hydraulic control schematic diagram;

Fig. 9: the utility model electric control theory figure.

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1A～16A press button 1TA～2TA shutdown switch 1T～22T magnet coil 1LD～18LD green indicating lamp 1UD～2UD yellow indicator lamp 1BD～2BD white indicating light 1DK～2DK knife switch 1XK～2XK travel switch 1ZJ～2ZJ auxiliary reclay 1C～2C auxiliary reclay contact

1-1 increases under the hurdle the long cross-arm 1-5 of hurdle 1-2 minor spiral button 1-3 travelling wheel 1-4 walking frame 1-6 and increases hurdle 1-7 hyphen load 1-8 wire line hitch on the hurdle

The low horizontal-associate 2-5 spiral of 2-1 truss 2-2 pedal 2-3 crossbeam 2-4 draws buckles seat board 11-13 guide finger 11-14 upper base plate 11-15 stove bolt 11-16 bolt under the 11-1 pulley 11-2 bearing pin 11-3 axle sleeve 11-4 drift 11-5 channel 11-6 control stick 11-7 guide holder 11-8 bolt 11-9 spring abutment 11-10 stage clip 11-11 supporting iron 11-12

The specific embodiment

Railway deck type bridge multifunctional examining repairs by running part, hang that the arm rotation changes and leveling part, lifting suspension rod and flip portion, wire rope safety lock and safe wire rope elevator part, bridge under rotation commentaries on classics of maintenance hurdle and coupling part, increase hurdle part, power and hydraulic control part, electrically operated part totally eight parts form.Rail car trucks by the railcar traction is supported on two one steel rails of railway, two parallel rails 28 and two ends car bumper and connecting rod 29 are installed in trailer top, the traveling trailer wagon is bearing on the rail 28 by two pairs of travelling wheels 24, be screwed onto traveling vehicle frame 23 ends by traveling hydraulic motor 25, drive wire rope traveling Volume tube 26, its two ends wire rope is connected with car bumper and connecting rod 29 respectively, the 23 vertical travelings of tow out driving frame.The arm rotation commentaries on classics center of the hanging axle bed 45 of arm and leveling part is screwed onto traveling vehicle frame 23 middle and upper parts, two pairs of leveling hydraulic cylinders 21 are bearing in traveling vehicle frame 23 tops by hydraulic cylinder leg 22, the flange of inversion boot 48 both sides connects bearing pin 62, is screwed onto the top, two outer ends of moving arm 15 behind a pair of upset axis pin base 64 of suit; The cylinder end hanger pin of upset hydraulic cylinder 16 is connected on the moving arm 15 middle and lower part cylinder end hanger seats 67, the tailpiece of the piston rod hanger pin is connected on the bottom of inversion boot 48, the telescopic tube 8 and the inversion boot 48 of suit are 90 ° of upsets in upset hydraulic cylinder 16 control leads, and lifting suspension rod and moving arm 15 are connected to integral body; Suspension bracket about in the of 3 four pairs of change gears articulate maintenance hurdle 2 under the bridge, the upright pulley base 7 lower end pin joints that weld to the suspension rod axle 35 upper end hangers that connect and the interior pipe lower end of telescopic tube 8 of suspension bracket 3 upper center; Wire rope safety lock 11 is screwed onto on the safety lock mount pad 63 of 48 liang of side lower part welding of inversion boot; Safe wire rope 10 lower ends are connected on the hanger of pulley base 7 tops welding, and safe wire rope 10 upper ends are connected flange connection bearing pin 62 and stretch out on the band tooth Volume tube 14 of upset axis pin base 64 back suits; Hydraulic oil container 41 is upright to being sleeved on Diao Bei rotation commentaries on classics central axis 43 tops, the one end is installed motor or internal combustion engine 32, the hydraulic control valve is installed on other end top, the electric control box of hydraulic oil container 41 outer end attended operation controls, motor or internal combustion engine 32 keyed jointing duplex hydraulic pumps 68 power shafts drive fuel feeding, duplex hydraulic pump 68 is connected by seamless pipe with valve, be connected by flexible pipe between valve and hydraulic cylinder, hydraulic motor, be connected by cable between combination button switch and electric control box on the combination button switch of its left and right hurdle lower-pilot and the bridge.

Running part is articulated in the traveling sleeper 27 that segmentation laterally is laid on the rail car trucks on the curb girder of rail car trucks both sides by a pair of bolt 37 that colludes, and a pair of rail 28 is crimped on the traveling sleeper 27 by the pressing plate 38 that is spirally connected forms rail.It installs parallel a pair of rail 28 two ends welding car bumper and connecting rod 29, the traveling vehicle frame 23 bottoms two pairs of travelling wheels 24 of installation that are welded as rectangle by shaped steel are bearing on the rail 28, line carrier 80 is spirally connected away in the middle part of one end of traveling vehicle frame 23, walk the line carrier 80 1 ends traveling hydraulic motor 25 that is spirally connected, the axle of keyed jointing traveling Volume tube 26 in the middle of the hydraulic motor 25 output shaft keyed jointings, the other end of the axle of traveling Volume tube 26 is bearing in the flange shaft bearing that is spirally connected, after the traveling wire rope installs around traveling Volume tube 26, stage casing and traveling Volume tube 26 crimping two ends are connected on the connecting rod of car bumper and connecting rod 29, when traveling hydraulic motor 25 drives 26 rotations of traveling Volume tube, one end eases out wire rope, other end Volume advances wire rope, the vertical traveling of pulling traveling dolly.When bridge span is big, shift by the segmentation of railcar traction track trailer, realize the vertical traveling of bridge, be that the easy access personnel handle the vertical traveling of bridge inspection car as required under beam in the effect that rail is set on the trailer, guarantee personal safety.

Hang that the arm rotation changes and the arm rotation that hangs of leveling part changes and the arm rotation that hangs that pin joint is spirally connected at middle part on the traveling vehicle frame 23 behind the self-aligning ball bearing is installed in the hanger hole, central axis 43 bottom is changeed on the center axle bed 45; hanging the arm rotation changes the upright to sleeve pipe of central axis 43 bottom keyed jointing leveling crosses 20, vertical two ends of leveling cross 20 and transverse ends be pin joint leveling hydraulic cylinder 21 respectively, hydraulic cylinder leg 22 by leveling hydraulic cylinder 21 tailpiece of the piston rod pin joints is bearing in Diao Bei rotation commentaries on classics central axis 43 middle part Jian Jie rotation commentaries on classics fixed gears 31 on the traveling vehicle frame 23, and be spirally connected with leveling cross 20 tops, the upright cover of welding in the middle of the hydraulic oil container 41, be sleeved on the top that Diao Bei rotation changes central axis 43, fixedly arm 17 by the shaped steel welding, be screwed onto 41 liang of middle side parts of hydraulic oil container respectively, fixedly spiral shell connects rotation rotating hydraulic motor 30 on the arm 17 1 end bottom welded plates; rotation rotating hydraulic motor 30 output axle keys connect rotation alternation of hosts movable gear shaft 39, change fixed gear 31 engagements through idle wheel and axle 40 Yu rotation, fixedly arm 17 middle and lower parts at the two ends fixed bearing steel ball seat 81 that is spirally connected, steel ball supporting Zai rotation is installed in the support steel ball seat 81 to be changeed in the deep-slotted chip breaker of fixed gear 31 upper ends processing, fixedly 17 liang of upper lateral part weld types of arm steel is formed the change gear track, the fixing arm 17 Wai Liang tops a pair of tooth bar 18 that respectively is spirally connected, fixedly arm 17 inner beam segmentations are bearing on the outer beam horizontal-associate shaped steel, each pin joint one pair roller 49 of beam outer end; Moving arm 15 is welded as rectangular beam by shaped steel, the both sides, rear end of the beam hanger 65 that is spirally connected, 65 times pin joint change gears of hanger 42 are formed gear changing group, be articulated on the shaped steel track of fixedly arm 17 both sides welding, moving arm 15 rear outside are upright to the welded and installed seat, the flexible hydraulic motor 19 that is spirally connected, flexible hydraulic motor 19 output shaft keyed jointing bidentate gear shafts, the other end of bidentate gear shaft is sleeved on the flange shaft bearing of the opposite side that is screwed onto beam, 18 engagements of bidentate wheel and rack.Cylinder end hanger seat 67 that the stage casing, bottom of moving arm 15 is spirally connected and upset hydraulic cylinder 16 cylinder end hanger pin joints, the front end lower support of moving arm 15 is on a pair roller 49 of fixing arm 17 front end pin joints, the upper front end of the moving arm 15 upset axis pin base 64 that is spirally connected is connected suspension rod and flip portion on the moving arm 15.Above-mentioned arm leveling, the trailer that the superelevation of outer rail when realizing that by leveling hydraulic cylinder 21 horizontal and vertical leveling solves curve location, bridge place causes tilts, and the fore-and-aft tilt problem of bridge when the ramp.Arm 90 ° rotation change the solution arm by the travel position that vertically is arranged on the trailer, half-twist and beam are for laterally entering inspecting state, arm is designed to fixedly arm 17 and moving arm 15 and rotates on tooth bar 18 by flexible hydraulic motor 19 driven wheels that to drive moving arm 15 flexible effects be to be different bridges of adaptation railway when wide, and the maintenance hurdle can both fall under the beam and accessible from rail car trucks under the bridge.

The inversion boot 48 of lifting suspension rod and flip portion is a quarter bend, inversion boot 48 is the welded flange outer guiding pressing plate 61 that is spirally connected respectively up and down, press-fit outer guiding nylon jacket 60, install telescopic tube 8 in inversion boot 48 upper and lower sleeves, 48 liang of face down bonding plates of inversion boot, the inversion boot 48 both sides upper center flange that is spirally connected respectively connects bearing pin 62, flange connects bearing pin 62 and installs upset axis pin base 64 back external part suit band tooth Volume tubes 14, in the two face down bonding plate upper holes, weld driving gear axle bed 54 respectively, driving gear shaft is installed on the axle sleeve, and driving gear shaft two external part keyed jointing driving gears 13 are with the tooth portion engagement of band tooth Volume tube 14.The coaxial passive vee-pulley 55 that is spirally connected in the outer end of the driving gear 13 of one end, the end lifting hydraulic motor 47 that is spirally connected in the two face down bonding plate bottom holes, the Volume tube axle key of the output shaft of lifting hydraulic motor 47 and middle keyed jointing lifting Volume tube connects, Volume tube shaft extension goes out the flange shaft bearing and installs initiatively vee-pulley axle bed 50 back keyed jointings active vee-pulleys 52, suit V-belt 53 on two vee-pulleys, regulating wheel 46 are screwed onto the degree of tightness of adjusting V-belt 53 in the slotted hole of the regulating wheel axle bed 51 that welds on the face down bonding plate.The interior pipe lower end welded pulley seat 7 of telescopic tube 8, the seat board middle part pin joint pulley 6 of pulley base 7, five holes of processing, bottom, hanger on the suspension rod axle 35 that 2 Ji rotation transfer parts, maintenance hurdle are divided under the interstitial hole pin joint bridge, lateral openingly install anti-sway pin, the swinging up and down of maintenance hurdle 2 under the constraint bridge respectively welded a pair of ear seat on top two plates of pulley base 7, pin joint safety wire rope 10; Telescopic tube 8 is sleeved in the pipe by the more piece quarter bend to be formed, the upper end welding plug plate of its each interior pipe, bulkhead middle part processing circular hole, processing round boss in lower ends in the middle of the interior guiding nylon sheet 59, and centre-drilling hole, be spirally connected by inner sleeve top pressing board 58 and be fitted in pipe top, control beat during lifting, install flexible limit casing 66 in the hole, the top cover tubing upper sealing plate 56 of outer tube, the top suspension ring 57 that are spirally connected, effect of outer guide sleeve employing nylon is to prevent corrosion in it, rust is dead, the caliber of its flexible limit casing 66 increases from inside to outside successively, and interior pipe hanger is connected on outer tube top, pipe whereabouts length in the restriction.The telescopic tube of said structure, fix also solderless wrapped connection on lifting Volume tube by lifting wire rope 9 one ends, after the other end installs around lifting Volume tube, the bottom installs around pulley 6 and is connected under the double shackle seat of inversion boot 48 inner bottoms welding on the pin of hole, when lifting hydraulic motor 47 driving lifting Volume tubes unclamp lifting wire rope 9, its telescopic tube 8, land with deadweight to little caliber by big caliber, when Volume advances lifting wire rope 9, the retraction sleeve pipe successively from little caliber to big caliber, and promote outer tube and inversion boot 48 in, rises and put in place, pass through V-belt 53 transmissions driving driving gear 13 drive belt teeth Volume tubes 14 forward or reverse simultaneously; The last hole of the diplopore hanger seat of inversion boot 48 inner bottom welding and upset hydraulic cylinder 16 piston rod hanger pin joints, cylinder end hanger seat 67 pin joints that upset hydraulic cylinder 16 cylinder end hangers and 15 times middle parts of moving arm are spirally connected, give the upset hydraulic cylinder 16 big chamber oil-feeds, during the loculus oil return, piston rod is released, promote the telescopic tube 8 of inversion boot 48 and suit, around 64 rotations of upset axis pin base, and make telescopic tube 8 parallel being placed on move arm 15 tops, the upper end greater than more than two meters, is in safe range apart from the railway power supply contact line conducting wire during its upset.

Wire rope safety lock and safe wire rope Volume raise part.For preventing to cause people, machine safety problem after lifting wire rope 9 fractures, at 48 liang of side lower parts of inversion boot a wire rope safety lock 11 is installed respectively, after lifting wire rope 9 fractures, the lifting suspension rod partly is articulated on the inversion boot 48 by safety wire rope 10.For making safe wire rope 10 and telescopic tube 8 synchronization liftings, the upper end of safe wire rope 10 is connected on the band tooth Volume tube 14, the linear velocity of safety wire rope 10 has only half of linear velocity of lifting wire rope 9 during 14 runnings of band tooth Volume tube, and keyed jointing active vee-pulley 52 is as active transmission gears 13 on the lifting Volume tube axle, driving gear 13 and the tooth portion engaged transmission of being with tooth Volume tube 14, so in the time of lifting wire rope 9 liftings, safe wire rope 10 is synchronous with it.When asynchronous slightly, skid and adjust its error in V-belt 53 in running.The following seat board 11-12 middle part welding channel 11-5 of wire rope safety lock 11, channel 11-5 middle part is upright to processing wedge groove, lateral middle level of processing square groove, install control stick 11-6 in the horizontal square groove of channel 11-5, control stick 11-6 is upright to the upright groove of middle part processing, be processed as the step on band inclined-plane on the upright groove, drift 11-4 major part is last, the microcephaly under be installed in the upright groove of wedge groove and control stick, drift 11-4 circular arc circle centre position upper bore is installed bearing pin 11-2, bearing pin 11-2 both sides suit axle sleeve 11-3 is articulated in the top of control stick 11-6, the left end welding of following seat board 11-12 installs the guide holder 11-7 of control stick 11-6, right-hand member Weld-supporting iron 11-11, its control stick 11-6 right-hand member suit stage clip 11-10, spring abutment 11-9 is screwed onto supporting iron 11-11 outer end by bolt 11-8, under the effect of stage clip 11-10, a control stick 11-6 left side pushes away, drift 11-4 falls its safe wire rope 10 that installs around is pressed to the wedge groove, install around the safe wire rope 10 of drift 11-4, safe wire rope 10 1 ends are connected on the welding hanger pin of pulley base 7 through lower sheave 11-1 guiding, symmetrical pin connects following four pulley 11-1 on the seat board, another lower sheave of other end solderless wrapped connection 11-1 of safe wire rope 10, after installing around the top sheave 11-1 of its homonymy again, after installing around opposite side top sheave 11-1 again, on be connected on the band tooth Volume tube 14, the guide finger 11-13 of drift 11-4 and bearing pin 11-2 are installed on down seat board 11-12 respectively and upper base plate 11-14 goes up the upright in slotted hole of processing, upper base plate 11-14 is screwed onto on the channel 11-5 by four stove bolt 11-15, install the bearing pin 11-2 of pulley 11-1 simultaneously, be screwed onto on the safety lock mount pad 63 by bolt 11-16 then, the pin joint safety lock is handled regulating wheel 12 in the left end hole of its control stick 11-6, and lifting wire rope 9 jam-packeds are handled on the regulating wheel 12 at safety lock, force control stick 11-6 to move to right, by the inclined-plane on the control stick 11-6 drift 11-4 is lifted, unclamp the wedge groove, allow safe wire rope 10 in drift 11-4 and wedge groove, be free to slide.After lifting wire rope 9 fracture, the jam-packed power that safety lock is handled on the regulating wheel 12 disappears, and moves to left at the effect of the stage clip 11-10 vertical pole 11-6 that finishes drilling, and drift 11-4 in the wedge groove, prevents that reduction sleeve pipe 8 from falling, and plays the safeguard protection effect with safe wire rope 10 jam-packeds.

Bridge down maintenance Lan rotation change and the bridge of coupling part under maintenance hurdle 2 by the truss 2-1 of two shaped steel welding, the two ends horizontal-associate that is spirally connected, medial section connects low horizontal-associate 2-4, the crossbeam 2-3 that is spirally connected on the lower chord of truss 2-1, crossbeam 2-3 go up welding pedal 2-2 and constitute.The upper chord of truss 2-1 is that two root beads are connected on the channel-section steel on vertical rod and the brace, two couples of travelling wheel 1-3 that install at walking frame 1-5 two ends are installed in its inner side slot steel tank, with increase hurdle 1 and be connected, maintenance hurdle 2 passes suspension bracket 3 and is articulated in suspension bracket 3 two ends up and down on four pairs of change gears of pin joint under its bridge, and be connected the fixing position of suspension bracket 3 on the hurdle by outside four screw-buttons 4 and the truss 2-1 upper chord.Be welded as the suspension bracket 3 of rectangle closed-in construction by shaped steel, middle part welding shaped steel is square hole on it, welding is upright to cover in the middle of it, welding garden, bottom plate, the square riser of welding on the plate, riser is connected in the square hole with the upright suspension rod cover 5 that welds oblique gusset to inner room, the suspension rod axle 35 of its pin joint in pulley base 7 bottoms passes suspension rod cover 5, the lower end keyed jointing upper end processing deep-slotted chip breaker of suspension rod axle 35, after in the groove rotation fixed gear 34 of ball being installed, the lower end processing annular groove of suspension rod axle 35, the dissection type shoulder block is installed, and it is taken turns down the flange stifle that is spirally connected and prevents that shoulder block from deviating from annular groove, maintenance hurdle 2 under suspension bracket 3 and the bridge is articulated in the bottom of telescopic tube 8, the top weldering plate of suspension bracket 3 is pressed gear centre apart from the upright hole of processing.The mounting teeth axle block, suit drive pinion shaft in the seat, keyed jointing driving tooth and crank 36 axle on shake that maintenance hurdle 2 is that the center rotates with suspension rod axle 35 under driving tooth and crank 36 drive suspension brackets 3 and the bridge.Maintenance hurdle 2 effect in the suspension bracket 3 that is articulated in is to be convenient to according to the position of the wide adjustment suspension bracket 3 of bridge on maintenance hurdle 2 under the bridge under the bridge, maintenance hurdle 2 is a fulcrum with suspension bracket 3 under the bridge, other end counterweight keeps the two ends balance, the effect that suspension bracket 3 drives 2 rotations of maintenance hurdles is maintenance hurdle 2 when the bridge side descends, make it parallel with the bridge side, drop to Liang Xiashi, make it by rotating under the beam.

Increase hurdle 1 by walking frame 1-5, travelling wheel 1-3, increase hurdle 1-1 under the hurdle, increase hurdle 1-6 on the hurdle, minor spiral button 1-2, wire line hitch 1-8, long cross-arm 1-4, hyphen load 1-17 form.Be welded as the walking frame 1-5 of rectangular configuration by shaped steel, two ends respectively install a horizontal axis, and the external part of axle is set with two couples of travelling wheel 1-3, roll in the side upper chord channel-section steel within the truss 2-1 on maintenance hurdle 2 under bridge.Be welded as the hurdle 1-1 under the hurdle that increases of rectangle frame, its upright vertical rod outside the welding of two ends, the inboard is welded vertical rod respectively, upper, middle and lower are symmetrically welded horizontal-associate to be formed rectangular opening and installs a pair of long cross-arm 1-4, will increase that hurdle 1-1 is articulated on the walking frame 1-5 under the hurdle, the U-shaped clamp of four symmetries of walking frame 1-5 welding, the clamp upper bore, long cross-arm 1-4 is installed on the walking frame 1-5, and the bearing pin of in the clamp hole, packing into, the stressed beat of constraint length cross-arm 1-4.Four U-shaped cards that symmetry is identical of welding on the top of increasing hurdle 1-1 under the hurdle and the walking frame 1-5 homonymy, it is upright in the rectangular opening that is installed on walking frame 1-5 to increase under the hurdle hurdle 1-1, with increase the hurdle under hurdle 1-1 structure identical to increase on the hurdle hurdle 1-6 upright in being installed on the frame that increases hurdle 1-1 under the hurdle, after installing a pair of hyphen load 1-7, it is anti-sway to wear pin on the U-shaped card, be bearing in and increase under the hurdle on the hurdle 1-1, increase the pedal that hurdle 1-6 bottom pin joint two is opened on the hurdle, the frame face down bonding connects horizontal shaped steel and forms and go up helper.By adjusting the height that raises in the hole, upper, middle and lower that cross-arm is through upper and lower hurdle.When upper and lower hurdle rises to the highest when height maintenance of still can not reaching, increase be spirally connected on the hurdle 1-6 on the hurdle with increase the hurdle on identical, the measure-alike guardrail of hurdle 1-6 structure increase highly.The above-mentioned hurdle structure that increases, the maintainer in the hurdle about, and guardrail height reaches safety requirements, can effectively guarantee maintainer's personal safety.

The hydraulic oil container 41 of hydraulic control part is inner shaped steel welded framework, the box-structure that outside welding steel plate constitutes, the interior welds steel plate is formed labyrinth type, the case face down bonding connects the oil level mark, oil filler is spirally connected on the case, the oil suction mouth of pipe, case is the welding drain oil down, its middle part soldering sleeve, being installed in Diao Bei rotation changes on the central axis 43, the two face down bonding plates fixedly arm 17 that is spirally connected, on the support of one end top by rubber shock absorber be spirally connected motor or internal combustion engine 32, the output of motor or internal combustion engine 32 flange that is spirally connected, duplex hydraulic pump 68 is installed, and its output shaft and pump power shaft drive by the shaft coupling keyed jointing; The other end upper opening of the hydraulic oil container 41 valve seat install bin that is spirally connected, the inlet port of its pump fuel sucking pipe that is spirally connected, through 79 oil suctions of hydraulic oil filtering device, the fuel-displaced employing seamless pipe of two pumps is connected on the interior corresponding control valve of valve seat install bin, the flowline of each valve is connected on the vertical plates on both sides of valve seat install bin, be connected with hydraulic cylinder, hydraulic motor by flexible pipe, by-pass valve control is installed on the valve seat.

The power supply of electrically operated part adopts the combustion engine battery power supply, the outer end that its hydraulic oil container 41 is installed valve seat install bin one end, adopt rubber shock absorber to connect electric control box, from control cabinet, connect three multicore cables, wherein two is control usefulness under the left and right bridge, connects the combination button controller, control lifting, hoisting arm expansion and dolly traveling, another root is to control on the bridge, connects the commentaries on classics of combination button controller control upset, rotation, traveling, lifting, hoisting arm expansion.

It is to handle like this and control that above-mentioned railway deck type bridge multifunctional examining repairs:

When one, entering preceding station, maintenance bridge location, should carry out following preparation:

1, determines the installation site of suspension bracket 3 on maintenance hurdle 2 according to bridge width, height data, carry out the counterweight work at two ends, hurdle, and prepare to increase the hurdle and increase the hurdle and under bridge, overhaul installation site on the hurdle, assort the quantity of minor spiral button 1-2, the quantity of wire line hitch 1-8 and the length of link position button; That installs in the need bridge increases the hurdle 1, and all the other increase the hurdle and all are connected firmly with maintenance hurdle under the bridge; In case of necessity, be equipped with the respective accessory that temporarily articulates platform.

2, starting internal combustion engines is in normal operation, and the hydraulic pressure oil level is up to specification.

Two, after railcar is hauled rail car trucks that tool car the is installed scheduled overhaul position to the bridge:

1, press the button switch 8A, the 3-position 4-way solenoid operated directional valve 72 and 72 of control upset ' magnet coil 2T and the 16 big chamber oil supply loculus oil returns of 3T energising valve commutation upset hydraulic cylinder, maintenance hurdle under the bridge is lifted the disengagement chock;

2, hand crank 36 is with maintenance hurdle 2 half-twists (operate simultaneously both sides) under the bridge, and the maintainer wears on the corresponding facility and overhauls in the hurdle under bridge;

3, pressing the button 30 oil-feeds of switch 15A rotation rotating hydraulic motor just changes, and the arm half-twist is vertically vertical with beam, and maintenance hurdle 2 is parallel with the beam side under the bridge;

4, when pressure switch 78 and 78 ' in the time of can not controlling the 21 ' leveling of fore-and-aft leveling hydraulic cylinder automatically, press the button switch 13A or 14A, magnet coil 17T or 18T energising, 75 commutations of 3-position 4-way solenoid operated directional valve, 21 ' one side oil-feeds of leveling hydraulic cylinder, a side oil return makes the arm fore-and-aft leveling; Simultaneously when pressure switch 78 " 78 " ' in the time of can not controlling transverse hydraulic cylinder 21 leveling arms automatically, press the button switch 15A or 16A, 76 commutations of 3-position 4-way solenoid operated directional valve, the arm transverse horizontal is adjusted in side leveling hydraulic cylinder 21 1 side oil-feeds one side oil return;

5, press the button switch 7A, 3-position 4-way solenoid operated directional valve 72 and 72 ' magnet coil 1T and 4T energising, the valve commutation, the upset hydraulic cylinder loculus oil-feed of both sides, big chamber oil return pulling inversion boot 48 and telescopic tube turn over 90 ° for 8 times, vertically hang on arm, and it is anti-sway with the side opening pin on the suspension rod axle 35 to insert pulley base 7;

6, press button switch 1A and 2A (or the 1DK that closes a switch), the horizontal valve 71 of 3-position 4-way electromagnetism and 71 ' magnet coil 6T and the commutation of 7T energising valve, the lifting hydraulic motor 47 of both sides and 47 ' one side oil-feeds, one side oil return, driving lifting Volume tube just changes, lifting wire rope 9 Volume go out, and telescopic tube 8 drops to that the maintenance hurdle is lower than under the beam under the bridge;

7, hand crank 36 is horizontal with maintenance hurdle half-twist and beam under the bridge;

8, the switch 5A that presses button, 3-position 4-way solenoid operated directional valve 70 and 70 ' magnet coil 9T and 11T energising, the valve commutation, flexible hydraulic motor 19 and 19 ' counter-rotating drives moving arm 15 indentations, the maintenance hurdle is drawn close in bridge, and both sides truss 2-1 is drawn over to one's side also fastening by screw-button 2-5 is installed, and will descend the hole to be spirally connected, hurdle under the bridge of both sides is connected to integral body, installs when needing and increase hurdle 1, and adjust the hurdle height;

9, press button horizontal valve 73 magnet coil 13T of switch 11A or 12A 3-position 4-way electromagnetism or 14T the energising, the valve commutation. 25 rotations of traveling hydraulic motor drive traveling Volume tube 26, one side Volume goes out, and a side Volume advances wire rope, and traction traveling dolly moves the maintenance bridge forward or backward;

10, when maintenance runs into the horizontal-associate plate of beam, switch 1A or 2A (knife switch 1DK closes) press button, 3-position 4-way solenoid operated directional valve 71 and 71 ' magnet coil 6T and 7T energising, the valve commutation. lifting hydraulic motor 47 and 47 ' just change, drive lifting Volume tube Volume and go out lifting wire rope 9, telescopic tube 8 falls successively, make maintenance hurdle decline under the bridge, and make and increase after hurdle and maintainer be lower than the horizontal-associate of beam, the dolly traveling is by behind the horizontal-associate, when pressing the button switch 3A or 4A (knife switch 2DK closes), 3-position 4-way solenoid operated directional valve 71 and 71 ' magnet coil 5T and 8T energising, the valve commutation, lifting hydraulic motor 47 and 47 ' drivings lifting Volume tube reverses, Volume advances wire rope, makes Qiao Xialan be in suitable height and continues maintenance.When the maintenance arch bridge, when the maintenance hurdle dropped to extreme lower position or rises to the extreme higher position, travel switch 3XK, 4XK, 5XK, 6XK cut off the power supply automatically, bidirectional hydraulic lock 77 and 77 ' prevent to conduct oneself with dignity and; When design attitude was arrived in traveling, travel switch 1XK or 2XK outage automatically stopped traveling.Dragging the rail car trucks running length by railcar should be not more than dolly and design away line length, for guaranteeing safety, dolly should be moved to during vehicle track running beam hole third side to, on arch bridge during upkeep operation, shift in the time of the maintenance hurdle should being risen to the inner sleeve of big caliber.

Three, maintenance finishes or when dodging the contact net electric pole:

1, increase hurdle 1 and fall to putting in place, remove connect in the middle of the hurdle, both sides after, press the button switch 6A 3-position 4-way solenoid operated directional valve 70 and 70 ' magnet coil 10T and 12T energising, the valve commutation.Flexible hydraulic motor 19 and 19 ' just change drives moving arm and stretches out a segment distance, makes under the bridge of both sides in the middle of the maintenance hurdle 2 separately, and hand crank 36 will overhaul the hurdle and rotate to parallel with the beam side;

2, press the button switch 3A or 4A 3-position 4-way solenoid operated directional valve 71 and 71 ' magnet coil 5T and 8T energising, the valve commutation, lifting hydraulic motor 47 and 47 ' driving Volume tube Volume advances wire rope, 2 liftings of maintenance hurdle under telescopic tube 8 and the bridge are put in place, travel switch 5XK, 6XK outage, 3LD, 4LD green indicating lamp extinguish, and valve resets, and stop to rise;

3, press the button switch 8A, 11LD, 12LD are bright, 3-position 4-way solenoid operated directional valve 72 and 72 ' magnet coil 2T and 3T energising, the valve commutation,, pressure oil enters the big chamber of upset hydraulic cylinder 16, the loculus oil return promotes to turn on inversion boot 48 and telescopic tube 8 lower ends thereof, and is parallel with arm.Then, release button, hand crank 36 is with maintenance hurdle half-twist under the bridge, parallel with telescopic tube 8 and be articulated under the sleeve pipe, after stop the insertion chock, press the button switch 7A, green indicating lamp 9LD and 10LD are bright, 3-position 4-way solenoid operated directional valve 72 and 72 ' and, the valve commutation, pressure oil enters upset hydraulic cylinder 16 loculuses, big chamber oil return, maintenance hurdle 2 is implemented on chock under the bridge, release button, this tool car is loaded on the rail car trucks, engine stops;

4, start railcar, the traction track trailer returns the station.

It is above-mentioned press the button switch after, the green indicating lamp 1LD～8LD that is connected with its switch is bright; After dolly was walked line operate and pressed the button switch 11A or 12A, yellow indicator lamp 1UD or 2UD were bright; Press the button switch 1A～8A any the time, it is bright that white indicating light 1BD and 2BD connect power supply through the auxiliary reclay contact 1C of auxiliary reclay 1ZJ, 2ZJ and 2C; Electromagnetism unloading overflow valve 69 and 69 ' magnet coil 21T and 22T energising, off-load is closed in the valve commutation; When press the button switch 9A～16A any the time, white indicating light 1BD connects the bright lamp of power supply through the auxiliary reclay contact 1C of auxiliary reclay 1ZJ; Electromagnetism unloading overflow valve 69 ' magnet coil 21T energising, off-load is closed in the valve commutation.

The railway deck type bridge multifunctional examining of said structure repairs when being used for the double track bridge maintenance, fixedly arm dismounting of side in its bridge, and after installation galianconism and the counterweight, maintenance hurdle under lengthening bridge is installed in its outside, stretches under the beam and overhauls.

The railway deck type bridge multifunctional examining of said structure repairs when being used for the road bridge maintenance, and its rail is installed on the trailer of automobile, and it leans on bridge central side fixedly arm dismounting installation galianconism and counterweight, overhauls other demifacet again after the demifacet maintenance, realizes overhauling under the beam.

Claims (3)

1, a kind of railway deck type bridge multifunctional examining repairs, and it is characterized in that: by running part, hang that the arm rotation changes and leveling part, lifting suspension rod and flip portion, wire rope safety lock and safe wire rope elevator part, bridge under the rotation commentaries on classics of maintenance hurdle and coupling part, power and hydraulic control part, electrically operated part totally eight parts form; Described running part is bearing on two one steel rails of railway by the rail car trucks of railcar traction, two parallel rails (28) and two ends car bumper and connecting rod (29) are installed in trailer top, the traveling trailer wagon is bearing on the rail (28) by two pairs of travelling wheels (24), be connected in traveling vehicle frame (23) end by traveling hydraulic motor (25), drive wire rope traveling Volume tube (26), traveling Volume tube (26) two ends wire rope is connected with car bumper and connecting rod (29) respectively, vertically traveling of tow out driving frame (23); Describedly hang that the arm rotation changes and the leveling part is hung the arm rotation and changeed center axle bed (45) by installing in the middle of traveling vehicle frame (23) top; hanging the arm rotation changes center axle bed (45) and go up pin joint and hang the arm rotation and change central axis (43); hanging the arm rotation changes central axis (43) and trap and debug the upright cover of flat cross (20), the vertical and horizontal of leveling cross (20) are a pair of leveling hydraulic cylinder of pin joint (21) respectively, the piston rod pin joint hydraulic cylinder leg (22) of leveling hydraulic cylinder (21) is bearing in vehicle frame top; hanging the arm rotation changes central axis (43) middle part cover dress rotation commentaries on classics fixed gear (31), be spirally connected and be bearing in leveling cross (20) top; hang top and the upright cover of hydraulic oil container (41) middle part welding suit that the arm rotation changes central axis (43), hydraulic oil container (41) the two middle side parts welding riser left side that is spirally connected respectively, right fixedly arm (17), both sides are the following middle part of arm (17) mounting support steel ball seat (81) fixedly, steel ball supporting Zai rotation changes in the deep-slotted chip breaker of fixed gear (31) upper end, fixedly ((13) drive fixedly arm (17) rotation commentaries on classics Yu rotation changes fixed gear (31) engagement to the output shaft keyed jointing driving gear of 30) ， rotation rotating hydraulic motors (30) to a side lower part Luo Jie rotation rotating hydraulic motor of arm (17); Described lifting suspension rod and flip portion are installed a pair of change gear (42) in the nearly bridge stage casing of moving arm (15), the external part of moving arm (15) is bearing on the outer end roller (49) that is pinned at fixing arm (17), flexible hydraulic motor (19) is installed at moving arm (15) middle part, on the output shaft of flexible hydraulic motor (19) the keyed jointing gear be screwed onto fixedly tooth bar (18) engagement on arm (17) top and drive moving arm (15) and go up at fixing arm (17) and stretch, the external part top of moving arm (15) the upset axis pin base (64) that is spirally connected, the a pair of flange that is spirally connected on the pin joint inversion boot (48) connects bearing pin (62), flange connects the bearing pin projecting shaft cover for seat dress band tooth Volume tube (14) of bearing pin (62), upset hydraulic cylinder (16) cylinder end pin joint middle part under moving arm (15), the piston rod hanger pin of upset hydraulic cylinder (16) is connected on inversion boot (48) bottom, and the telescopic tube (8) of handling inversion boot (48) and suit thereof and moving arm (15) are articulated to the parallel 90 ° of upsets that articulate by vertical; Described wire rope safety lock and safe wire rope elevator part are by lifting hydraulic motor (47) keyed jointing wire rope Volume tube, be installed in inversion boot (48) outer end, Volume tube shaft extension goes out initiatively vee-pulley (52) of bearing support outer end keyed jointing, V-belt (53) is installed forms the band transmission with the passive vee-pulley (55) that driving gear (13) outer end is spirally connected, the power transmission shaft of keyed jointing driving gear (13) stretches out other end axle bed keyed jointing other end driving gear (13), driving gear (13) and the gears engaged of being with on the tooth Volume tube (14), drive belt teeth Volume tube (14) rotation, lifting wire rope (9) one ends are connected on the lifting Volume tube, the other end installs around after the pulley base (7) of welding under the interior pipe of telescopic tube (8) is gone up the pulley (6) of pin joint and is connected on the inversion boot (48), pulley base (7) lower end pin joint suspension bracket (3), suspension bracket (3) is gone up driving tooth and crank (36) is installed, the tooth portion of driving tooth and crank (36) axle gear shaft down and rotation fixed gear (34) engagement that is connected under the shackle shaft, driven by shaking suspension bracket (3) rotation, maintenance hurdle (2) are installed in the suspension bracket (3) and are articulated in suspension bracket (3) and go up on four pairs of change gears of pin joint under the bridge; Inversion boot (48) bottom, both sides is spirally connected respectively and handles regulating wheel (12) by safety lock, the wire rope safety lock (11) that jam-packed lifting wire rope (9) is handled, safe wire rope (10) lower end of both sides is connected on the pulley base (7), the upper end is connected on the band tooth Volume tube (14), with telescopic tube (8) synchronization lifting; Described power and hydraulic control part, motor or internal combustion engine 32 are installed in one end top of hydraulic oil container (41), motor or the internal combustion engine 32 outputs flange form pump seat (33) that is spirally connected, flange form pump seat (33) is gone up and motor or the coaxial duplex hydraulic pump (68) that is spirally connected of internal combustion engine (32), its output shaft and duplex hydraulic pump (68) power shaft keyed jointing shaft coupling drive, the other end is installed the valve seat case, and control valve is spirally connected on the valve seat; Described electric control system, electric control box is installed in hydraulic oil container (41) end, hang the commentaries on classics of arm rotation by left and right under the bridge, three the combination button controller controls in top, inversion boot (48) and telescopic tube (8) upset that installs, move the flexible of arm (15), the lifting of maintenance hurdle (2) under the bridge.

2, railway deck type bridge multifunctional examining according to claim 1 repairs, it is characterized in that: described wire rope safety lock (11), the welding of following seat board (11-12) middle part is upright to processing wedge groove, the channel (11-5) of horizontal level of processing square groove, install control stick (11-6) in the horizontal square groove, control stick (11-6) is upright to the upright groove of middle part processing, be processed as the step on band inclined-plane on the groove, drift (11-4) major part is last, the microcephaly under be installed in the upright groove of wedge groove and control stick (11-6), its circular arc circle centre position upper bore is installed bearing pin (11-2), both sides suit axle sleeve (11-3) are articulated in the top of control stick (11-6), the left end welding of following seat board (11-12) installs the guide holder (11-7) of control stick (11-6), right-hand member Weld-supporting iron (11-11), control stick (11-6) right-hand member suit stage clip (11-10), spring abutment (11-9) is screwed onto supporting iron (11-11) outer end by bolt (11-8), under the effect of stage clip (11-10), control stick (11-6) left side pushes away, drift (11-4) falls its safe wire rope (10) that installs around is pressed to the wedge groove, install around the safe wire rope (10) of drift (11-4), the one end is connected on the welding hanger pin of pulley base (7) through lower sheave (11-1) guiding, symmetrical pin connects following four pulleys on the plate, another lower sheave of other end solderless wrapped connection (11-1) of safe wire rope (10), after installing around the top sheave (11-1) of its homonymy again, after installing around opposite side top sheave (11-1) from top to bottom again, on be connected on band tooth Volume tube (14), four of symmetrical pin joint pulleys retrain safe wire rope (10) up and down; Upper base plate (11-14) is screwed onto channel (11-5) top, and the upper and lower pin that its drift (11-4) installs is installed on respectively in the upright slotted hole of processing on the plate center line up and down, prevents drift (11-4) beat.

3, railway deck type bridge multifunctional examining according to claim 1 repairs, it is characterized in that: overhauling under bridge has the hurdle of increasing (1) in the hurdle (2), and increasing hurdle (1) is articulated on the inboard channel-section steel of upper chord of two truss (2-1) of maintenance hurdle (2) under the bridge by walking frame (1-5) by two pairs of travelling wheels (1-3), articulate walking frame (1-5) in the truss (2-1), the interior suit of walking frame (1-5) increases hurdle Xia Lan (1-1), that increases two pedals of the interior suit of hurdle Xia Lan (1-1) bottom pin joint increases hurdle on the hurdle (1-6), and by a pair of long cross-arm (1-4) and a pair of hyphen carry on a shoulder pole (1-7) penetrate on the both sides on hurdle in or time square hole be articulated on the frame.

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