CN112227220B

CN112227220B - Large-span high-stability bridge girder erection machine

Info

Publication number: CN112227220B
Application number: CN202011228347.3A
Authority: CN
Inventors: 童巨苍; 童国柱; 张苗红; 项广力; 杨克旺
Original assignee: Zhongjian Luqiao Equipment Co ltd
Current assignee: Zhongjian Luqiao Equipment Co ltd
Priority date: 2020-11-06
Filing date: 2020-11-06
Publication date: 2022-03-25
Anticipated expiration: 2040-11-06
Also published as: CN112227220A

Abstract

The invention discloses a large-span high-stability bridge girder erection machine which comprises a main girder, a main supporting leg, a temporary supporting leg, a rear supporting leg, a trolley and a rotary hanger, wherein the main girder comprises auxiliary main girders which are parallel to each other from left to right, a plurality of main girder connecting frames are arranged between the two auxiliary main girder supports, and two ends of each main girder connecting frame are fixed on the corresponding auxiliary main girder; the auxiliary main beam comprises a connecting beam at the upper part and two transverse main beams at the bottom part, and a plurality of welding fixing frames are fixed on the connecting beam and the transverse main beams at the bottom part; the side connecting rod of its girder is detachable installation to be fixed on the welding mount of tie-beam and the horizontal girder in bottom, and its loading and unloading are convenient, are difficult to the fracture moreover, and its main landing leg is high with the stability of back landing leg moreover, long service life, and its rotatory hoist can multi-angle rotating adjust, satisfies the transport removal needs that lift by crane the thing.

Description

Large-span high-stability bridge girder erection machine

The technical field is as follows:

the invention relates to the technical field of road and bridge equipment, in particular to a large-span high-stability bridge girder erection machine.

Background art:

in the existing bridge girder erection machine, the bottom of a main supporting leg of the bridge girder erection machine is generally provided with a main supporting leg, a rear supporting leg and other structures, two rotary mechanism bases can be placed on a transverse main beam of the main supporting leg of a supporting leg mechanism, rotary connecting bases can be installed on the rotary mechanism bases, the rotary connecting bases are generally directly and fixedly connected with a connecting frame, a pushing oil cylinder can be arranged on the connecting frame, the main supporting leg is connected with the main beam through the pushing oil cylinder, the main beam can move forwards through the stretching of a pushing rod of the pushing oil cylinder, and therefore the over-span working condition of the bridge girder erection machine is completed, however, the main beam and the main supporting leg are in sliding friction, and the friction force is large. When the span is large, in order to shorten the span time, the stroke of the pushing oil cylinder needs to be increased, so that the cost is increased; when the main beam is higher and the height of the main supporting leg is required to be higher, the bending moment of the supporting leg can be greatly increased due to the larger friction coefficient of the main beam and the main supporting leg, so that the anchoring force between the supporting leg and a beam plate or a capping beam is increased;

when the main beam is higher, the height of the main supporting leg is required to be ensured to be higher, the pushing distance of the lower pushing oil cylinder required to be set needs to be increased, the lower pushing oil cylinder with a large stroke needs to be selected, the stroke of the lower pushing oil cylinder is increased, the stability can be reduced, and the cost of the large-stroke oil cylinder is high;

the two existing rotating mechanism bases are pulled by an oil cylinder to move, and when the two existing rotating mechanism bases move, other guide mechanisms are not arranged, so that the two existing rotating mechanism bases are easy to shift when moving, and the moving effect is influenced;

meanwhile, when the existing rear supporting leg moves along the main beam, the existing rear supporting leg moves along the top surface of the edge part of the main beam through the polytetrafluoroethylene plate, so that the friction force is large, the movement and the adjustment are not easy, and the effect is poor; its bottom direct rigid connection bottom runing rest that back landing leg device generally is back landing leg, the bottom surface of bottom runing rest's back supporting leg need press the stress position department of the top surface of the case roof beam of bridge, on the case roof beam top surface of the vertical top of two lateral wall portions of case roof beam promptly, and because the middle part of frame bridge machine needs to guarantee can pass through the case roof beam connecting block, interval between two back landing legs of consequently frame bridge machine needs to be enough big, when its interval is greater than the distance between two lateral wall portions of case roof beam, the bottom of its back landing leg can directly press on two pterygoid laminas in the top of case roof beam, just can't complete atress this moment, can make the pterygoid lamina impaired, the effect is poor.

And the end parts of the side connecting rods on the two auxiliary beams of the existing main beam are directly connected with the connecting beam of the auxiliary main beam and the transverse main beam at the bottom, the welding part is easy to break, the connection is not firm, and the assembly and disassembly are inconvenient.

The invention content is as follows:

the invention aims to overcome the defects of the prior art and provide a large-span high-stability bridge girder erection machine, wherein side connecting rods of main girders are detachably arranged and fixed on a connecting beam and a welding fixing frame of a transverse main girder at the bottom, the bridge girder erection machine is convenient to assemble and disassemble and not easy to break, main supporting legs and rear supporting legs of the bridge girder erection machine are high in stability and long in service life, and a rotary lifting appliance of the bridge girder erection machine can be adjusted in a multi-angle rotation manner, so that the requirement of carrying and moving lifted objects is met.

The technical solution of the invention is as follows:

a large-span high-stability bridge girder erection machine comprises main girders, main support legs, temporary support legs, rear support legs, a trolley and a rotary hanger, wherein the main girders comprise auxiliary main girders which are parallel to each other at left and right, a plurality of main girder connecting frames are arranged between the two auxiliary main girder supports, and two ends of each main girder connecting frame are fixed on the corresponding auxiliary main girders;

the auxiliary main beam comprises a connecting beam at the upper part and two bottom transverse main beams at the lower part, a plurality of welding fixing frames are fixed on the connecting beam and the bottom transverse main beams, a plurality of side connecting rods are arranged between the connecting beam and the bottom transverse main beams, the upper ends of the side connecting rods are fixed on the welding fixing frames at the connecting beam, and the lower ends of the side connecting rods are fixed on the welding fixing frames at the bottom transverse main beams;

guide rails are fixed on the top surfaces of the connecting beams, and the hoisting trolley is placed on the two guide rails;

the temporary support leg, the rear support leg and the main support leg are arranged on a transverse main beam at the bottom, and a rotary lifting appliance is arranged on the lifting trolley;

the main supporting leg comprises a main supporting leg transverse main beam, two heightening frames are fixed on the bottom surface of the main supporting leg transverse main beam, the bottom surfaces of the heightening frames are fixed on a supporting leg lifting mechanism, and supporting legs of the supporting leg lifting mechanism are pressed on a bridge frame or a support on a bridge pier;

two rotating mechanism bases are placed on a top plate of the main beam of the main supporting leg in the transverse direction, and an adjusting screw mechanism and a movable pushing oil cylinder are arranged between the two rotating mechanism bases;

the middle part of a top plate of the rotating mechanism base is hinged with a rotating connecting base through a hinged shaft, a plurality of connecting through holes are formed in the edge part of a bottom plate of the rotating connecting base, a plurality of arc-shaped through grooves are formed in the edge part of the top plate of the rotating mechanism base, screw rod parts of fixing bolts are inserted and sleeved in the connecting through holes and the corresponding arc-shaped through grooves, and the top parts of the screw rod parts of the fixing bolts extend out of the top surface of the bottom plate of the rotating connecting base and are in threaded connection with two locking nuts which are pressed against each other;

the left part and the right part of the front part and the rear part of the top surface of the top plate of the rotary connecting seat are respectively fixed with a rotary side supporting plate, the lower part of the equalizing beam is positioned between the two corresponding rotary side supporting plates, and the equalizing beam is hinged on the two rotary side supporting plates through a hinge shaft;

mounting through grooves are formed in the left side plate and the right side plate of the front portion and the rear portion of the equalizing beam, the two anti-rolling wheel mounting frames are located above the left portion and the right portion of the equalizing beam, two ends of a hinge shaft of each anti-rolling wheel mounting frame are inserted into the corresponding two mounting through grooves, and the anti-rolling wheel mounting frames are hinged to the equalizing beam through the hinge shaft;

the middle part of the equalizing beam is provided with a middle supporting plate, the top surface of the middle supporting plate is provided with a main supporting oil cylinder, the top surface of a push rod of the main supporting oil cylinder is fixed with a main limiting frame, a bottom transverse main beam is inserted and sleeved in the main limiting frame, the bottom surface of the bottom transverse main beam is close to the bottom plate of the main limiting frame, the top surfaces of the left end and the right end of the main limiting frame are fixed with side blocking blocks, and the side blocking blocks are positioned at two sides of the bottom transverse main beam;

the upper rotating wheel of the anti-rolling wheel mounting rack is positioned on the top surface of the edge part of the corresponding bottom transverse main beam;

the rear leg comprises a rear leg cross beam, a plurality of bottom rotary support frames are fixed on the bottom surface of the rear leg cross beam, a rear leg cross beam pulley block is mounted on the rear leg cross beam, a rear leg balance seat is fixedly connected onto a top plate of the rear leg cross beam pulley block through bolts, an inner sleeve body connecting seat is hinged onto the rear leg balance seat through a balance shaft, an inner sleeve body is fixed on the top surface of the inner sleeve body connecting seat, the upper part of the inner sleeve body is inserted into the outer sleeve body, two oblique support arms at the bottom of the rear leg support frame are fixed onto two outer side walls of the outer sleeve body, a rear leg main oil cylinder is hinged onto the middle part of the bottom surface of a horizontal beam of the rear leg support frame, a lower connecting seat is fixed onto the top surface of the inner sleeve body connecting seat, the bottom end of a push rod of the rear leg main oil cylinder is hinged onto the lower connecting seat through a hinge shaft, and the inner sleeve body and the outer sleeve body are fixedly connected through a plurality of rear leg pin shafts;

the rear supporting leg moving hanging wheel is hinged to the rear supporting leg side supporting frame through a bearing, a rear supporting leg driving gear is fixed to the inner end portion of the rear supporting leg moving hanging wheel and meshed with the rear supporting leg moving driving gear, and the rear supporting leg moving hanging wheel is located on the top face of the side portion of the corresponding bottom transverse main beam.

A main driving gear motor is fixed on the outer side wall of one side plate of the anti-rolling wheel mounting frame, an output shaft of the main driving gear motor is inserted and sleeved in one side plate of the anti-rolling wheel mounting frame, an anti-rolling wheel driving gear is fixed on the output shaft of the main driving gear motor, the tooth-shaped part of the anti-rolling wheel driving gear extends out of the inner side wall of the corresponding side plate, an upper rotating wheel is hinged to the upper part of one side plate of the anti-rolling wheel mounting frame, a first outer gear ring is fixed or formed on the outer side wall of the upper rotating wheel, at least one lower roller body is arranged between the two side plates of the anti-rolling wheel mounting frame, the lower roller body is hinged to the anti-rolling wheel mounting frame through a bearing, a second outer gear ring is arranged at one end of the lower roller body, and the anti-rolling wheel driving gear drives the first outer gear ring and the second outer gear ring to rotate;

the middle part of a side plate of the counter-roller mounting frame is hinged with a middle idler wheel through a bearing, the outer tooth part of the middle idler wheel is meshed with a first outer gear ring and a second outer gear ring, and the second outer gear ring is meshed with a counter-roller driving gear.

The supporting leg lifting mechanism comprises an upper telescopic outer sleeve part, the heightening frame is fixed on the top surface of the middle part of the upper telescopic outer sleeve part, a lower telescopic outer sleeve part is arranged right below the upper telescopic outer sleeve part, two main vertical supporting leg inserting sleeves are arranged in the upper telescopic outer sleeve part and the lower telescopic outer sleeve part, a supporting leg lifting oil cylinder is arranged in the middle between the middle part of the upper telescopic outer sleeve part and the lower telescopic outer sleeve part, a top oil cylinder seat of the supporting leg lifting oil cylinder is hinged in the upper telescopic outer sleeve part through a hinge shaft, and the end part of a push rod of the supporting leg lifting oil cylinder is hinged in the lower telescopic outer sleeve part through the hinge shaft;

all the shaping has the corresponding connecting hole around a plurality of vertical arrangements on two curb plates around main vertical supporting leg, all the shaping has corresponding flexible connecting hole on the wallboard around going up flexible outer cover portion and the both ends of controlling of lower flexible outer cover portion, and flexible connecting hole aligns around with the connecting hole that corresponds, and the bolt plug bush is in the flexible connecting hole that corresponds and the connecting hole that corresponds.

The adjusting screw mechanism comprises two adjusting sleeves and a middle double-head adjusting screw, two screw connection rod parts of the middle double-head adjusting screw are in screw connection with screw connection sleeve bodies arranged at one ends of the corresponding adjusting sleeves in a screw connection mode, and the other ends of the adjusting sleeves are hinged to corresponding rotating mechanism bases;

a transverse long through groove is formed in the middle of a top plate of the main support leg transverse main beam, a long positioning plate is fixed in the main support leg transverse main beam right below the transverse long through groove, an oil cylinder connecting seat is hinged to one end of a movable pushing oil cylinder, the oil cylinder connecting seat is inserted in the transverse long through groove and installed on the long positioning plate, and the end of a push rod of the movable pushing oil cylinder is hinged to one rotating mechanism base;

the long positioning plate is formed with a plurality of long positioning through grooves, the middle part of the bottom plate of the oil cylinder connecting seat is formed with an upper positioning slot, the positioning locking block is inserted in the corresponding upper positioning slot and the long positioning through grooves, the outer side wall of the upper part of the positioning locking block is formed with a protruding part, and the protruding part is pressed on the top surface of the bottom plate of the oil cylinder connecting seat.

One end of the movable pushing oil cylinder is hinged to the oil cylinder connecting seat through a hinged shaft;

an oil cylinder lug seat is fixed in the middle of one side of a rotating mechanism base, and the end part of a push rod for moving and pushing the oil cylinder is hinged on the oil cylinder lug seat through a hinged shaft;

all be equipped with adjusting screw mechanism between the left part and the right part of two rotary mechanism bases, the articulated shaft through vertical state of adjusting sleeve's one end articulates on the connecting lug seat that is fixed with on the lateral wall of the rotary mechanism base that corresponds.

And a plurality of bottom cross beams are arranged between the two bottom transverse main beams at the lower part, and two ends of each bottom cross beam are welded and fixed on the two bottom transverse main beams.

A bottom plate of the rotating mechanism base is hinged with a movable guide roller through a bearing, and the movable guide roller is inserted and sleeved in the transverse long through groove.

The rotary lifting appliance comprises a lifting appliance main beam, and a lower lifting connecting seat is hinged to the lifting appliance main beam through hinged shafts at the bottom ends of a left end plate and a right end plate of the lifting appliance main beam;

one end of the lower lifting connecting seat is hinged with the end part of a push rod of an edge adjusting oil cylinder through a hinged shaft, and the cylinder body end of the edge adjusting oil cylinder is hinged on a left end plate or a right end plate of a main beam of the lifting appliance through the hinged shaft;

the middle part of the main beam of the lifting appliance is hinged with an adjusting lug seat through a first hinged shaft, the upper part of the adjusting lug seat extends out of the top surface of the main beam of the lifting appliance, a connecting seat is fixed at the right part of the top surface of the main beam of the lifting appliance, the end part of a push rod of a side adjusting oil cylinder is hinged on the connecting seat through a hinged shaft, and a cylinder body connecting part of the side adjusting oil cylinder is hinged on the upper part of the adjusting lug seat through a hinged shaft;

the upper part of the adjusting lug seat is hinged with a rotating main shaft through a hinged shaft;

the upper part of the rotating main shaft is hinged on the main base body, and a transmission gear is fixed on the rotating main shaft;

a movable pulley seat of a pulley block is arranged on the main seat body, and a fixed pulley of the pulley block is fixed on the trolley;

the main seat body is provided with a rotary driving mechanism, an output shaft of the rotary driving mechanism is fixedly provided with a driving gear, and the driving gear is meshed with the transmission gear.

And a limiting space is arranged between the bottom surface of the bottom plate of the equalizing beam and the top plate of the rotary connecting seat.

The top at the front part and the rear part of the equalizing beam is fixed with an arc-shaped wallboard, the bottom plate of the anti-rolling wheel mounting frame is an arc-shaped bottom plate, the arc-shaped bottom plate and the arc-shaped wallboard vertically correspond to each other and are close to each other, and the inner side wall plate of the anti-rolling wheel mounting frame is close to the front wallboard or the rear wallboard in the middle of the equalizing beam.

The invention has the beneficial effects that:

1. the side connecting rods of the main beams are detachably installed and fixed on the connecting beams and the welding fixing frames of the transverse main beams at the bottom, so that the side connecting rods are convenient to assemble and disassemble and are not easy to break.

2. The rotary lifting appliance can horizontally rotate the lifting appliance main beam, can also vertically incline the lifting appliance main beam, and can adjust the inclination of the front direction and the rear direction by lifting the connecting seat, so that the lifting appliance can meet different lifting installation requirements, the lifting and placing states of lifted objects are changed, and different lifting installation requirements are met.

3. No matter how high the height of the main supporting leg is, the lifting of the main vertical supporting leg only needs to be driven by a supporting leg lifting oil cylinder with a small stroke, the lifting is stable, and the adjustment is convenient.

4. It passes through articulated shaft hinge equalizing beam on the swivelling joint seat, and through articulated shaft hinge anti-gyro wheel mounting bracket on the equalizing beam, realize the flexonics, when making the horizontal girder in the bottom of the girder is installed to the last runner of its anti-gyro wheel mounting bracket or lower rolling element, all go up runner or lower rolling element homoenergetic and the contact of the horizontal girder in bottom, guarantee the atress equilibrium, guarantee life, and can realize the rolling friction removal between main landing leg and the girder through going up runner or lower rolling element, frictional force greatly reduced, make it when the girder removes or main landing leg removes, adopt rolling friction, frictional force is little, it is quick to remove, when making the over-span operating mode of bridge girder erection machine, greatly shortened the over-span time.

5. The upper rotating wheel is arranged at the upper part of the double-roller double-roller double roller.

6. It is in down between second leading wheel and the first leading wheel through the horizontal girder in bottom of girder for it can not take place the card problem of dying with the anti-gyro wheel mounting bracket when removing, guarantees its normal operating.

7. The adjusting screw mechanism with the adjustable length is arranged between the two rotary mechanism bases, so that the two rotary mechanism bases can move simultaneously, and the two rotary mechanism bases can move along the long positioning through groove by moving the guide roller, so that the deviation is avoided, and the moving effect is ensured.

8. The rear support leg of its back landing leg removes the change gear and removes along the bridge girder erection machine girder, its frictional force is little, and is effectual, and it can adjust the bottom swivel mount frame as required and be in the bottom surface position of rear support leg crossbeam, guarantee that it can be in two lateral wall portions of case roof beam directly over, and the rear support leg crossbeam assembly pulley of two back landing legs is in on the rear support leg crossbeam, the increase can be adjusted to the interval between the rear support leg crossbeam assembly pulley of two back landing legs, it can guarantee that the distance between two back landing legs is fit for the case roof beam connecting block to pass through, satisfy atress and needs that pass through, and is effectual.

Description of the drawings:

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

FIG. 2 is a partial cross-sectional view of the present invention;

FIG. 3 is a partial schematic view of the main leg of the present invention;

FIG. 4 is a partial cross-sectional view of the main leg of the present invention;

FIG. 5 is a partial schematic view of the anti-roll mounting bracket and components thereon of the present invention;

FIG. 6 is a schematic view of a portion of the structure between the main drive gear motor and the upper rotating wheel of FIG. 5;

FIG. 7 is a schematic view of a partial structure at the intermediate idler at the counter roller mounting;

FIG. 8 is a partial schematic view of the arrangement between the first guide wheel and the second guide wheel at the counter roller mounting;

FIG. 9 is a schematic view of a portion of the structure between the upper and lower telescoping outer sleeves and the main vertical support leg;

FIG. 10 is a partial cross-sectional view of the leg lift cylinder with the upper and lower telescoping outer sleeve portions;

FIG. 11 is a partial cross-sectional view of the main vertical support leg, the upper telescoping outer jacket portion and the lower telescoping outer jacket portion;

FIG. 12 is a schematic view of a partial structure between the anti-roller mounting bracket and the rotary connecting base;

FIG. 13 is a partial schematic structural view between the equalizer beam and the bottom cross main beam;

figure 14 is a partial top view of the base of the rotary mechanism;

fig. 15 is a partial structural view between the rotary mechanism base and the rotary connecting seat;

fig. 16 is a partial structural schematic view between the main leg transverse main beam and the rotating mechanism base;

FIG. 17 is an enlarged view of a portion of FIG. 16;

FIG. 18 is a partial top view of the main leg transverse main beam;

figure 19 is a partial top view between two rotary mechanism mounts;

FIG. 20 is a schematic view of a partial structure of an oil cylinder connecting seat and a main leg transverse main beam;

FIG. 21 is a schematic view of a partial structure of a movable guide roller of the base of the rotary mechanism and a transverse main beam of the main leg;

FIG. 22 is a partial structural view between the rear legs and the main beam;

FIG. 23 is a partial schematic view of the rear leg;

FIG. 24 is an enlarged view of a portion of FIG. 22;

FIG. 25 is a schematic view of an alternate angle partial configuration of the rear leg;

FIG. 26 is an enlarged partial view of FIG. 25;

FIG. 27 is a partial cross-sectional view of the rear leg lower pulley block;

FIG. 28 is a partial schematic view of a rotary spreader without an edge adjustment cylinder mounted at one end;

FIG. 29 is an enlarged partial view of FIG. 28;

fig. 30 is a partial cross-sectional view of the rotary spreader;

FIG. 31 is a partial structural view of the main beam;

FIG. 32 is a partial schematic view of the bottom cross rail of the main rail at the anti-roller mounting.

The specific implementation mode is as follows:

example (b): as shown in fig. 1 to 32, a large-span high-stability bridge girder erection machine comprises a main girder 1000, a main support leg 2000, a temporary support leg 3000, a rear support leg 4000, a trolley 5000 and a rotary hanger 6000, wherein the main girder 1000 comprises auxiliary main girders 100 which are parallel to each other in the left-right direction, a plurality of main girder connecting frames 200 are arranged between the two auxiliary main girders 100, and two ends of each main girder connecting frame 200 are fixed on the corresponding auxiliary main girder 100;

the auxiliary main beam 100 comprises an upper connecting beam 103 and two lower transverse main beams 1001, a plurality of welding fixing frames 104 are fixed on the connecting beam 103 and the transverse main beams 1001, a plurality of side connecting rods 105 are arranged between the connecting beam 103 and the transverse main beams 1001, the upper ends of the side connecting rods 105 are fixed on the welding fixing frames 104 at the connecting beam 103, and the lower ends of the side connecting rods 105 are fixed on the welding fixing frames 104 at the transverse main beams 1001;

guide rails are fixed on the top surfaces of the connecting beams 103, and the trolley 5000 is placed on the two guide rails;

the temporary support leg 3000, the rear support leg 4000 and the main support leg 2000 are arranged on a transverse main beam 1001 at the bottom, and the lifting trolley 5000 is provided with a rotary hanger 6000;

the main supporting leg 2000 comprises a main supporting leg transverse main beam 40, two heightening frames 49 are fixed on the bottom surface of the main supporting leg transverse main beam 40, the bottom surfaces of the heightening frames 49 are fixed on a supporting leg lifting mechanism, and supporting feet 391 of the supporting leg lifting mechanism are pressed on the bridge frame; wherein the main leg 2000 between the rear leg 4000 and the main leg 2000 at the other end is also referred to as the middle leg, with the difference that the support foot 391 of the main leg 2000 at the end portion is pressed against a bracket fixed to the bridge abutment top surface, while the support foot 391 of the main leg 2000 in the middle portion is pressed against the bridge.

The supporting leg lifting mechanism comprises an upper telescopic outer sleeve part 31, the bottom surface of a heightening frame 49 is fixed on the top surface of the middle part of the upper telescopic outer sleeve part 31, a lower telescopic outer sleeve part 32 is arranged right below the upper telescopic outer sleeve part 31, two main vertical supporting legs 30 are inserted and sleeved in the upper telescopic outer sleeve part 31 and the lower telescopic outer sleeve part 32, a supporting leg lifting cylinder 33 is arranged in the middle part between the middle part of the upper telescopic outer sleeve part 31 and the lower telescopic outer sleeve part 32, a top cylinder seat of the supporting leg lifting cylinder 33 is hinged in the upper telescopic outer sleeve part 31 through a hinge shaft, and the end part of a push rod of the supporting leg lifting cylinder 33 is hinged in the lower telescopic outer sleeve part 32 through the hinge shaft;

two rotating mechanism bases 41 are arranged on the top plate of the main support leg transverse main beam 40, and an adjusting screw mechanism 42 and a movable pushing oil cylinder 43 are arranged between the two rotating mechanism bases 41;

the adjusting screw mechanism 42 comprises two adjusting sleeves 421 and a middle double-end adjusting screw 422, two screw connection rod parts of the middle double-end adjusting screw 422 are screwed in a screw connection sleeve body 423 arranged at one end of the corresponding adjusting sleeve 421, and the other end of the adjusting sleeve 421 is hinged on the corresponding rotating mechanism base 41;

a transverse long through groove 430 is formed in the middle of the top plate of the main support leg transverse main beam 40, a long positioning plate 44 is fixed in the main support leg transverse main beam 40 right below the transverse long through groove 430, one end of the movable pushing oil cylinder 43 is hinged with an oil cylinder connecting seat 45, the oil cylinder connecting seat 45 is inserted in the transverse long through groove 430 and is installed on the long positioning plate 44, and the end of a push rod of the movable pushing oil cylinder 43 is hinged on one rotating mechanism base 41;

the middle part of the top plate of the rotating mechanism base 41 is hinged with a rotating connecting seat 50 through a hinged shaft, a plurality of connecting through holes are formed at the edge part of the bottom plate of the rotating connecting seat 50, a plurality of arc-shaped through grooves 419 are formed at the edge part of the top plate of the rotating mechanism base 41, the screw rod part of the fixing bolt is inserted and sleeved in the connecting through holes and the corresponding arc-shaped through grooves 419, and the top part of the screw rod part of the fixing bolt extends out of the top surface of the bottom plate of the rotating connecting seat 50 and is screwed with two locking nuts which are pressed against each other;

the left part and the right part of the front part and the rear part of the top surface of the top plate of the rotary connecting seat 50 are both fixed with rotary side supporting plates 51, the lower part of the equalizing beam 52 is positioned between the two corresponding rotary side supporting plates 51, and the equalizing beam 52 is hinged on the two rotary side supporting plates 51 through a hinge shaft;

mounting through grooves 521 are formed in the left side plate and the right side plate of the front part and the rear part of the equalizing beam 52, the two anti-rolling wheel mounting frames 60 are positioned above the left part and the right part of the equalizing beam 52, two ends of a hinge shaft of each anti-rolling wheel mounting frame 60 are inserted into the corresponding two mounting through grooves 521, and the anti-rolling wheel mounting frames 60 are hinged to the equalizing beam 52 through the hinge shaft;

be fixed with main drive gear motor 61 on the lateral wall of a curb plate of anti-gyro wheel mounting bracket 60, the output shaft plug bush of main drive gear motor 61 is in a curb plate of anti-gyro wheel mounting bracket 60, be fixed with anti-gyro wheel drive gear 62 on the output shaft of main drive gear motor 61, the inside wall of the corresponding curb plate is stretched out to anti-gyro wheel drive gear 62's profile of tooth, the upper portion of a curb plate of anti-gyro wheel mounting bracket 60 articulates there is last runner 63, it has first outer ring gear 631 to fix or the shaping on the lateral wall of last runner 63, be equipped with at least one lower roller body 64 between two curb plates of anti-gyro wheel mounting bracket 60, lower roller body 64 passes through the bearing and articulates on anti-gyro wheel mounting bracket 60, the one end department of lower roller body 64 is equipped with the outer ring gear of second 641, anti-gyro wheel drive gear 62 drives first outer ring gear 631, the outer ring gear of second rotates.

Further, the middle portion of one side plate of the counter roller mounting bracket 60 is hinged with an intermediate idle gear 65 through a bearing, the external teeth of the intermediate idle gear 65 are meshed with the first external gear ring 631 and the second external gear ring 641, and the second external gear ring 641 is meshed with the counter roller driving gear 62.

Furthermore, a plurality of vertically arranged front and rear corresponding connecting through holes 34 are formed in the front and rear side plates of the main vertical supporting leg 30, corresponding telescopic connecting through holes 35 are formed in the front and rear wall plates at the left and right ends of the upper telescopic outer sleeve portion 31 and the lower telescopic outer sleeve portion 32, the telescopic connecting through holes 35 are aligned with the corresponding connecting through holes 34 in the front and rear direction, and the pins 36 are inserted into the corresponding telescopic connecting through holes 35 and the corresponding connecting through holes 34.

Furthermore, a plurality of long positioning through grooves 441 are formed on the long positioning plate 44, an upper positioning slot 451 is formed in the middle of the bottom plate of the cylinder connecting seat 45, the positioning locking block 46 is inserted into the corresponding upper positioning slot 451 and the long positioning through grooves 441, a protruding portion 461 is formed on the outer side wall of the upper portion of the positioning locking block 46, and the protruding portion 461 presses against the top surface of the bottom plate of the cylinder connecting seat 45.

Further, one end of the moving pushing oil cylinder 43 is hinged on the oil cylinder connecting seat 45 through a hinged shaft;

an oil cylinder ear seat 411 is fixed in the middle of one side of the rotating mechanism base 41, and the end part of a push rod for moving the pushing oil cylinder 43 is hinged on the oil cylinder ear seat 411 through a hinged shaft;

an adjusting screw mechanism 42 is arranged between the left part and the right part of each of the two rotating mechanism bases 41, and one end of an adjusting sleeve 421 is hinged to a connecting lug seat 412 fixed on the side wall of the corresponding rotating mechanism base 41 through a hinge shaft in a vertical state.

Further, a teflon wear plate 413 is fixed on the bottom surface of the rotating mechanism base 41, and the bottom surface of the teflon wear plate 413 is tightly attached to the top surface of the top plate of the main support leg transverse main beam 40.

Further, a moving guide roller 48 is hinged on the bottom plate of the rotating mechanism base 41 through a bearing, and the moving guide roller 48 is inserted and sleeved in the transverse elongated through groove 430.

Further, a middle support plate is installed in the middle of the equalizing beam 52, a main support cylinder 53 is installed on the top surface of the middle support plate, a main limit frame 54 is fixed on the top surface of a push rod of the main support cylinder 53, a bottom transverse main beam 1001 is fixed on the edge of a bottom cross beam of the main beam, the bottom transverse main beam 1001 is inserted in the main limit frame 54, the bottom surface of the bottom transverse main beam 1001 is close to the bottom plate of the main limit frame 54, side blocking blocks 541 are fixed on the top surfaces of the left end and the right end of the main limit frame 54, and the side blocking blocks 541 are located on two sides of the bottom transverse main beam 1001.

Further, the bottom surface of the bottom plate of the equalizing beam 52 and the top plate of the rotating connecting seat 50 have a spacing distance 55 therebetween.

Further, arc-shaped wall plates are fixed at the top of the front part and the rear part of the equalizing beam 52, the bottom plates of the anti-roller mounting frames 60 are arc-shaped bottom plates, the arc-shaped bottom plates correspond to the arc-shaped wall plates from top to bottom and are close to the arc-shaped wall plates, and the inner side wall plates of the anti-roller mounting frames 60 are close to the front wall plate or the rear wall plate in the middle of the equalizing beam 52.

Further, an upper hinge shaft is fixed to an upper portion of a front side plate of the counter roller mounting bracket 60, and an inner end of the upper hinge shaft extends out of an inner side wall of the front side plate and is hinged to an upper rotating wheel 63 through a bearing.

Further, two lower roller bodies 64 are arranged between two side plates of the counter roller mounting frame 60, a middle rotating shaft is inserted into the middle of each lower roller body 64, two ends of the middle rotating shaft are fixed on the two side plates of the counter roller mounting frame 60, each lower roller body 64 is hinged to the middle rotating shaft through a bearing, a connecting sleeve is fixed at one end of each lower roller body 64, and a second outer gear ring 641 is fixed on the outer side wall of each connecting sleeve.

Further, the side plate on which the main drive speed reduction motor 61 is mounted on the counter roller mounting bracket 60 is higher than the other side plate, a first support frame 650 is fixed on the top surface of the side plate on which the main drive speed reduction motor 61 is mounted, a vertical shaft is fixed on the first support frame 650, a first guide wheel 651 is hinged to the vertical shaft through a bearing, a second support frame 66 is fixed on the upper portion of the other side plate, a second guide wheel 661 is hinged to the vertical shaft fixed on the second support frame 66 through a bearing, and the bottom transverse main beam of the main beam is located between the second guide wheel 661 and the first guide wheel 651.

Furthermore, an intermediate hinge shaft is fixed in the middle of one side plate of the counter roller mounting bracket 60, the intermediate hinge shaft is inserted into a middle through hole of one side plate of the counter roller mounting bracket 60, the intermediate hinge shaft is hinged with an intermediate idle gear 65 through a bearing, a connecting part of the intermediate idle gear 65 is inserted into a middle through hole of the corresponding side plate, an external tooth part of the intermediate idle gear 65 extends out of an inner side wall of the corresponding side plate, the diameter of the external tooth part of the intermediate idle gear 65 is larger than that of the connecting part of the intermediate idle gear 65, and the external tooth part of the intermediate idle gear 65 is meshed with one of the second external gear ring 641 and the first external gear ring 631.

Further, a reinforcing ring block 37 is fixed on the outer side wall of the front and rear wall plates at the telescopic connecting through hole 35 of the upper and lower telescopic

outer sleeve portions

31 and 32.

Furthermore, slots are formed on the top plate and the bottom plate at the left end and the right end of the upper telescopic outer sleeve portion 31 and the lower telescopic outer sleeve portion 32, and the main vertical support legs 30 are inserted into the corresponding slots.

Further, an upper through groove is formed in the middle of the bottom plate of the upper telescopic outer casing portion 31, a lower through groove is formed in the middle of the top plate of the lower telescopic outer casing portion 32, two upper support plates 311 are fixed to the bottom surface of the top plate of the upper telescopic outer casing portion 31 above the upper through groove, through holes are formed in the upper support plates 311 and the corresponding side plates of the upper telescopic outer casing portion 31, guide sleeves 312 are fixed to the inner side walls of the through holes in the upper support plates 311 and the corresponding side plates of the upper telescopic outer casing portion 31, upper cylinder mounting pins 313 are inserted into the corresponding two guide sleeves 312, and top cylinder seats of the leg lift cylinders 33 extend into the upper through grooves and are inserted into the upper cylinder mounting pins 313;

the screwing part of the upper cylinder mounting pin 313 extends out of the outer end surface of the corresponding guide sleeve 312 and is screwed with two locking nuts which are pressed against each other, the other end of the upper cylinder mounting pin 313 extends out of the outer end of the other guide sleeve 312 and is formed with a pressing part which is pressed against the outer end surface of the guide sleeve 312.

Further, two lower support plates 321 are fixed on the top surface of the bottom plate of the lower telescopic outer sleeve portion 32 below the lower through groove, through holes are formed in the lower support plates 321 and the corresponding side plates of the lower telescopic outer sleeve portion 32, the lower guide sleeve 312 is fixed on the inner side walls of the through holes in the lower support plates 321 and the corresponding side plates of the lower telescopic outer sleeve portion 32, the lower cylinder mounting pins 322 are inserted into the corresponding two lower guide sleeves 312, and the end portions of the push rods of the leg lifting cylinders 33 extend into the lower through groove and are inserted into the lower cylinder mounting pins 322;

the screwing part of the lower cylinder mounting pin 322 extends out of the outer end face of the corresponding guide sleeve 312 and is screwed with two locking nuts which are pressed against each other, the other end of the lower cylinder mounting pin 322 extends out of the outer end of the other guide sleeve 312 and is formed with a pressing part, and the pressing part is pressed against the outer end face of the guide sleeve 312.

Furthermore, a lower adjusting seat 38 is fixed on the bottom surface of the main vertical supporting leg 30, a screw joint through hole is formed in the middle of the lower adjusting seat 38, a vertical adjusting column 39 is screw jointed in the screw joint through hole, and the bottom end of the vertical adjusting column 39 extends out of the bottom surface of the lower adjusting seat 38 and is provided with a supporting leg 391.

Further, a cover plate 392 is fixedly connected to the top surface of the vertical adjustment post 39 by bolts, and the edge of the cover plate 392 faces the top surface of the lower adjustment seat 38.

Further, an arc-shaped holding portion 462 is fixed on the top surface of the positioning locking block 46.

Further, the elongated alignment plate 44 is fixed to the top surface of a plurality of internal reinforcing beams 47 fixed to the interior of the main leg transverse main beam 40.

Further, a bottom wear-resistant plate 481 is fixed on the bottom surface of the moving guide roller 48, and the bottom wear-resistant plate 481 is positioned right above the long positioning plate 44;

further, the width of the bottom wear plate 481 is greater than the width of the transverse elongated channel 430.

Furthermore, an annular limiting block 542 is fixed in the middle of the bottom surface of the main limiting frame 54, the bottom surface of the annular limiting block 542 is close to the edge of the top surface of the main supporting cylinder 53, and the push rod of the main supporting cylinder 53 is inserted into a central through hole formed in the middle top plate of the equalizing beam 52.

Further, a mounting groove is formed in the middle of the top surface of the middle support plate, and the bottom of the main support cylinder 53 is inserted into the mounting groove and fixed to the middle support plate.

Furthermore, an upper teflon plate 56 is clamped between the top plate of the rotating mechanism base 41 and the bottom surface of the rotating connecting base 50, the upper teflon plate 56 is inserted and sleeved on a middle hinge shaft of the rotating connecting base 50, the top part of the upper teflon plate 56 is inserted and sleeved in a circular groove formed in the bottom surface of the rotating connecting base 50, a wear-resisting plate 57 is fixed on the top plate of the rotating mechanism base 41, and the bottom surface of the upper teflon plate 56 is tightly attached to the wear-resisting plate 57.

A plurality of bottom cross beams are arranged between the two bottom transverse main beams 1001 below, and two ends of each bottom cross beam are welded and fixed on the two bottom transverse main beams 1001.

The rear support leg 4000 comprises a rear support leg cross beam 20, a plurality of bottom rotary support frames 21 are fixed on the bottom surface of the rear support leg cross beam 20, a rear support leg cross beam pulley block 22 is installed on the rear support leg cross beam 20, a rear support leg balance seat 23 is fixedly connected on the top plate of the rear support leg cross beam pulley block 22 through bolts, an inner sleeve body connecting seat 24 is hinged on the rear support leg balance seat 23 through a balance shaft, an inner sleeve body 25 is fixed on the top surface of the inner sleeve body connecting seat 24, the upper part of the inner sleeve body 25 is inserted and sleeved in an outer sleeve body 26, two oblique supporting arms 271 at the bottom of the rear supporting leg supporting frame 27 are fixed on two outer side walls of the outer sleeve body 26, a rear supporting leg main oil cylinder 272 is hinged in the middle of the bottom surface of a horizontal beam of the rear supporting leg supporting frame 27, a lower connecting seat is fixed on the top surface of the inner sleeve body connecting seat 24, the bottom end of a push rod of the rear supporting leg main oil cylinder 272 is hinged on the lower connecting seat through a hinge shaft, and the inner sleeve body 25 and the outer sleeve body 26 are fixedly connected through a plurality of rear supporting leg pin shafts 201;

the left part and the right part of the top surface of a horizontal beam of the rear leg supporting frame 27 are both fixed with a rear leg side supporting frame 273, the middle part of the outer side wall of the rear leg side supporting frame 273 is fixed with a rear leg moving speed reducing motor 274, the output shaft of the rear leg moving speed reducing motor 274 penetrates through the rear leg side supporting frame 273 and is fixed with a rear leg moving driving gear 275, a rear leg moving hanging wheel 276 is hinged on the rear leg side supporting frame 273 through a bearing, a rear leg transmission gear 277 is fixed at the inner end part of the rear leg moving hanging wheel 276, and the rear leg transmission gear 277 is meshed with the rear leg moving driving gear 275.

Further, bottom rotation support frame 21 includes back landing leg bottom rotation support frame 211, and back landing leg bottom rotation support frame 211 passes through bolt fixed connection on the bottom surface of back landing leg crossbeam 20, is fixed with back landing leg bottom regulating block on the bottom surface of back landing leg bottom rotation support frame 211, and the screw portion spiro union of back landing leg support 212 is in the middle part spiro union hole of back landing leg bottom regulating block.

Furthermore, the rear leg beam pulley block 22 includes a rear leg lower pulley seat 221, a plurality of lower support plates fixed on the bottom edge of the rear leg lower pulley seat 221 are hinged with a rear leg roller 222 through bearings, and the top surface of the rear leg roller 222 is spaced from the bottom surface of the top plate edge of the rear leg beam 20.

Furthermore, the bottom surface of the rear leg lower pulley seat 221 is pressed against the top surface of the top plate of the rear leg beam 20, a rear leg upper portion moving through groove 202 is formed in the middle of the top plate of the rear leg beam 20, a rear leg positioning pressing plate 229 is fixedly connected to the bottom plate of the rear leg lower pulley seat 221 through bolts, the bolts of the rear leg positioning pressing plate 229 are inserted into the rear leg upper portion moving through groove 202, and the top surface of the rear leg positioning pressing plate 229 is close to the bottom surface of the top plate of the rear leg beam 20.

Further, a plurality of rear leg edge arc through grooves 223 are formed in the edge of the top plate of the rear leg lower pulley seat 221, and bolts connected between the rear leg balance seat 23 and the top plate of the rear leg lower pulley seat 221 are inserted into the rear leg edge arc through grooves 223;

the bottom plate of the rear leg balancing seat 23 is hinged to the middle of the top plate of the rear leg lower pulley seat 221 through a hinge shaft.

Further, a plurality of vertically arranged connecting through holes are formed on two side walls of the inner sleeve body 25, a plurality of vertically arranged external connecting through holes are formed on two corresponding side walls of the outer sleeve body 26, and the rear leg pin shaft 201 is inserted into the corresponding connecting through holes and the external connecting through holes.

Further, all articulate through the articulated shaft on the inside wall of back landing leg side support frame 273 and have guide pulley 278, the horizontal girder 1001 in bottom has been placed to the top of the horizontal beam of back landing leg support frame 273, and the bottom plate side of the bottom roof beam of the horizontal girder 1001 in bottom is close to the lateral wall of the guide pulley 278 that corresponds.

Further, the bottom surface of the rear leg movement hanger 276 is at the top surface of the top panel edge of the bottom cross main beam 1001.

Further, a wear-resistant guide strip 1009 is fixed on the top surface of the top plate edge of the bottom transverse main beam 1001, and the bottom surface of the rear leg moving hanging wheel 276 is close to the top surface of the corresponding wear-resistant guide strip 1009.

Further, a plurality of rear leg beam reinforcing blocks 28 with h-shaped cross sections are arranged between the two main transverse plates in the middle of the rear leg beam 20, and two ends of the plurality of rear leg beam reinforcing blocks 28 are welded and fixed on the inner side walls of the two main transverse plates.

The rotary lifting tool 6000 comprises a lifting tool main beam 10, and the bottom ends of a left end plate and a right end plate of the lifting tool main beam 10 are hinged with a lower lifting connecting seat 11 through a hinged shaft;

one end of the lower hoisting connecting seat 11 is hinged with the end part of a push rod of the edge adjusting oil cylinder 12 through a hinged shaft, and the cylinder body end of the edge adjusting oil cylinder 12 is hinged on the left end plate or the right end plate of the main beam 10 of the hoisting tool through a hinged shaft;

the middle part of the main beam 10 of the lifting appliance is hinged with an adjusting lug seat 13 through a first hinged shaft, the upper part of the adjusting lug seat 13 extends out of the top surface of the main beam 10 of the lifting appliance, a connecting seat 14 is fixed at the right part of the top surface of the main beam 10 of the lifting appliance, the end part of a push rod of a side adjusting oil cylinder 15 is hinged on the connecting seat 14 through a hinged shaft, and a cylinder body connecting part of the side adjusting oil cylinder 15 is hinged on the upper part of the adjusting lug seat 13 through a hinged shaft;

the upper part of the adjusting lug seat 13 is hinged with a rotating main shaft 16 through a hinge shaft;

the upper part of the rotating main shaft 16 is hinged on the main seat body 17, and a transmission gear 161 is fixed on the rotating main shaft 16;

a movable pulley seat 181 of the pulley block 18 is arranged on the main seat body 17; the fixed pulley seat of the pulley block 18 is arranged on the trolley 5000.

The main seat body 17 is provided with a rotary driving mechanism 19, an output shaft of the rotary driving mechanism 19 is fixed with a driving gear 191, and the driving gear 191 is meshed with the transmission gear 161.

Further, the rotation driving mechanism 19 is a speed reducing motor, and a base of the speed reducing motor is fixed on the top surface of the fixed bottom plate of the main seat body 17.

Furthermore, a through hole 171 is formed in the middle of the fixed bottom plate of the main seat 17, the connection sleeve 172 is fixed on the inner side wall of the through hole 171, the upper portion of the rotating spindle 16 is inserted into the connection sleeve 172, an upper extension spindle 162 is formed in the middle of the top surface of the rotating spindle 16, and the lower portion of the upper extension spindle 162 is inserted into the connection sleeve 172.

Furthermore, a radially extending edge 173 is formed on the inner side wall of the top of the connecting sleeve body 172, the two limiting ring bodies 174 are inserted into the connecting sleeve body 172, the outer side wall of the outer ring of the rolling bearing 175 is clamped on the inner side wall of the connecting sleeve body 172, the rolling bearing 175 is located between the two limiting ring bodies 174, the lower part of the upper extending spindle 162 is inserted into the two limiting ring bodies 174, the lower outer side wall of the upper extending spindle 162 is clamped on the inner side wall of the inner ring of the rolling bearing 175, the top surface of the upper limiting ring body 174 is tightly attached to the bottom surface of the radially extending edge 173, and the bottom surface of the lower limiting ring body 174 is tightly attached to the edge part of the top surface of the rotating spindle 16;

the upper retainer ring 174 has a projection formed on a bottom surface thereof to be pressed against a top surface of an outer ring of the rolling bearing 175, and the lower retainer ring 174 has a projection formed on a top surface thereof to be pressed against a bottom surface of an inner ring of the rolling bearing 175.

Furthermore, a positioning plate 182 is fixed on the side wall of the movable pulley seat 181, the positioning plate 182 is pressed against the top surface of the connecting sleeve body 172, and the middle part of the upper extension main shaft 162 is inserted into the middle through hole of the positioning plate 182.

Furthermore, the top surface of the positioning plate 182 presses against the lower bearing sleeve body 183, the bottom surface of the outer ring of the self-aligning thrust roller bearing 184 presses against the top surface of the bottom plate of the lower bearing sleeve body 183, the outer side wall of the outer ring of the self-aligning thrust roller bearing 184 is clamped on the inner side wall of the lower bearing sleeve body 183, the inner ring of the self-aligning thrust roller bearing 184 is inserted and sleeved with the upper bearing sleeve body 185, the top surface of the inner ring of the self-aligning thrust roller bearing 184 presses against the bottom surface of the top plate of the upper bearing sleeve body 185, the upper portion of the upper extension spindle 162 is inserted and sleeved in the central through hole of the bottom plate of the lower bearing sleeve body 183 and the central through hole of the top plate of the upper bearing sleeve body 185, and the inner ring of the self-aligning thrust roller bearing 184 is fixed on the inner side wall of the upper portion of the upper extension spindle 162.

Further, a vertical screwing part 163 is formed in the middle of the top surface of the upper extension main shaft 162, the vertical screwing part 163 extends out of the top surface of the top plate of the upper bearing sleeve body 185 and is screwed with a limit sleeve body 164, and the bottom surface of the limit sleeve body 164 is pressed against the top surface of the top plate of the upper bearing sleeve body 185.

Further, the front ends of the upper parts of the left end plate and the right end plate of the main beam 10 of the lifting appliance are formed with upper extending parts 101 extending forwards, the cylinder body ends of the edge adjusting cylinders 12 are hinged on the corresponding upper extending parts 101 through hinge shafts, the end parts of the push rods of the edge adjusting cylinders 12 are positioned at the front parts between the left supporting plate and the right supporting plate of the corresponding lower lifting connecting seat 11, and the end parts of the push rods of the edge adjusting cylinders 12 are hinged on the two supporting plates through hinge shafts.

Further, the spreader main beam 10 is a box beam and includes a front main plate body 102 and a rear main plate body 102, the end portions of the two main plate bodies 102 on the same side are welded and fixed on the same left end plate or right end plate, the bottom surfaces of the upper plate bodies 103 are welded and fixed on the top surfaces of the two main plate bodies 102, the top surfaces of the lower plate bodies 104 are welded and fixed on the bottom surfaces of the two main plate bodies 102, and a plurality of middle reinforcing rib plates 105 are welded and fixed between the two main plate bodies 102.

Further, the adjusting lug seat 13 includes two vertical plates 131, the lower portions of the two vertical plates 131 have insertion holes, the guide sleeve 132 is fixed on the inner side walls of the two insertion holes, the two vertical plates 131 are inserted in the through groove in the middle of the upper plate body 103, the lower portions of the two vertical plates 131 and the guide sleeve 132 are located between the two main plate bodies 102 of the hanger main beam 10, the first hinge shaft is fixed on the two main plate bodies 102, and the middle portion of the first hinge shaft is inserted in the guide sleeve 132;

the right extending part 133 extending rightward is formed on the upper right side wall of the two vertical plates 131, and the cylinder body connecting part of the side adjusting cylinder 15 is hinged on the two right extending parts 133 through a hinge shaft.

The lower hoisting connecting seat 11 comprises two supporting plates, two middle connecting supporting plates 111 are welded and fixed between the two supporting plates, and a hoisting mounting pin shaft 112 is installed between the two middle connecting supporting plates 111.

When the main beam is used, when the main beam needs to be moved, the bottom transverse main beam 1001 of the main beam is located between the second guide wheel 661 and the first guide wheel 651, the front wall surface of the upper portion of the bottom transverse main beam 1001 is close to the first guide wheel 651, and the rear wall surface of the lower portion of the bottom transverse main beam is close to the second guide wheel 651, so that when the bottom transverse main beam 1001 moves along the lower roller body 64, the bottom transverse main beam is guided by the second guide wheel 661 and the first guide wheel 651, and is prevented from colliding with and being clamped by the two side plates of the anti-roller mounting frame 60, and normal operation of the bottom transverse main beam is guaranteed.

Moreover, when the embodiment needs to be moved, when the upper rotating wheel 63 leans against the top surface of the top plate edge of the bottom transverse main beam 1001 to walk, the second guide wheel 661 and the first guide wheel 651 guide the upper rotating wheel 63, so that most of the upper rotating wheel 63 can be ensured to be positioned on the edge of the top plate of the bottom transverse main beam, the upper rotating wheel 63 is ensured to be stressed uniformly, and normal walking is ensured.

When the device is used, the main drive speed reduction motor 61 operates to enable the counter roller drive gear 62 to rotate, so that the intermediate idle gear 65 and the second external gear ring 641 are driven to rotate, the lower roller body 64 is driven to rotate, and meanwhile, the intermediate idle gear 65 drives the first external gear ring 631 to rotate, and the upper rotating wheel 63 is driven to rotate.

This embodiment is when using, when needs lift the girder, can tear out two bolts 36 of last flexible outer jacket portion 31 department, then, push rod through landing leg lift cylinder 33 promotes, can realize that flexible outer jacket portion 31 promotes, thereby lift the girder, then, install two bolts 36 again, dismantle two bolts 36 of flexible outer jacket portion 32 department down, the push rod through landing leg lift cylinder 33 contracts, will stretch down outer jacket portion 32 and promote, install two bolts 36 again, realize promoting, the same with the mode before, can realize the gradual promotion of girder.

When the embodiment needs to move along the main beam, the two pins 36 at the upper telescopic outer sleeve portion 31 can be detached, then the push rod of the supporting leg lifting oil cylinder 33 retracts, the lower telescopic outer sleeve portion 32 and the two main vertical supporting legs 30 can be lifted simultaneously, at this time, the upper rotating wheel 63 leans against the top surface of the top plate edge portion of the bottom transverse main beam 1001 to achieve hanging, meanwhile, the lower roller body 64 is separated from the bottom surface of the bottom transverse main beam 1001, the embodiment can be moved along the main beam, and the adjustment is convenient and good in effect.

The front portion, the rear portion, the left portion and the right portion of the rotating mechanism base 41 in this embodiment are all formed with arc-shaped through grooves 419, when the rotating mechanism base needs to rotate and move, nuts of the fixing bolts at the front portion and the rear portion can be unscrewed, the fixing bolts at the left portion and the right portion can be disassembled, the rotating connecting seat 50 can rotate along the rotating mechanism base 41 by a certain angle, nuts of the fixing bolts at the left portion and the right portion can also be unscrewed, the fixing bolts at the front portion and the rear portion can be disassembled, the rotating connecting seat 50 can rotate along the rotating mechanism base 41 by a certain angle, it is ensured that when the rotating mechanism base moves along a main beam, the rotating mechanism base moves according to a track of an arc-shaped cover beam of a bridge, and the moving and walking requirements of this embodiment and the main beam are met.

When the anti-rolling device is used, the balance beam 52 can deflect and the anti-rolling wheel mounting rack 60 can deflect according to the placement of the main beam, so that the anti-rolling wheel can be in contact with the transverse main beam 1001 at the bottom of the main beam, the stress is uniform, the normal use of equipment is guaranteed, and the service life of the equipment is guaranteed.

When the supporting device is used for supporting, the top surface of the bottom plate of the main limiting frame 54 is pressed against the bottom surface of the bottom transverse main beam 1001 by pushing of the push rod of the main supporting oil cylinder 53, and supporting is achieved.

When the embodiment is used, the two rotating mechanism bases 41 can be moved simultaneously by pushing the push rod of the movable push cylinder 43, after a certain distance is moved, the positioning locking block 46 is pulled out, then the push rod of the movable push cylinder 43 retracts, at the same time, the cylinder connecting seat 45 also moves a certain distance, at the same time, the upper positioning slot 451 corresponds to the other long positioning through slot 441 of the long positioning plate 44, the positioning locking block 46 is inserted and sleeved in the corresponding upper positioning slot 451 and the long positioning through slot 441 to complete locking, then the two rotating mechanism bases 41 are moved simultaneously by pushing the push rod of the movable push cylinder 43, the simultaneous movement of the two rotating mechanism bases 41 can be realized by the way sequentially, meanwhile, the movable guide roller 48 is hinged on the bottom plate of the rotating mechanism base 41 through a bearing, the movable guide roller 48 is inserted and sleeved in the transverse long through slot 430, when it can guarantee to remove, two rotary mechanism bases 41 are along moving to microscler logical groove 43, guarantee to remove the effect, and it removes stably.

When the rear leg 4000 of the present embodiment is used, when the rear leg 4000 needs to be used as a support, the bottom surface of the rear support leg 212 is pressed against the top surface directly above the side wall portion of the box girder of the bridge body by pushing the push rod of the rear leg main cylinder 272, and the height of the bottom surface of the rear support leg 212 can be adjusted by rotating the screw portion of the rear support leg 212, wherein after the push rod of the rear leg main cylinder 272 is pushed, the bottom surface of the rear leg lower pulley seat 221 is pressed against the top surface of the top plate of the rear leg cross member 20, and then, the nut screwed on the bolt at the rear leg positioning pressing plate 229 is rotated, so that the top surface of the rear leg positioning pressing plate 229 is pressed against the bottom surface of the top plate of the rear leg cross member 20 to achieve fixation, wherein when the bottom surface of the rear leg lower pulley seat 221 is pressed against the top surface of the top plate of the rear leg cross member 20, it is fixed by the hinge action (flexible connection) of the balance shaft of the rear leg balance seat 23, can adjust through the relative rotation of back landing leg lower pulley seat 221 and interior cover body connecting seat 24 to guarantee that inner housing body 25 is under vertical state, the bottom surface of back landing leg lower pulley seat 221 presses on the top surface of the roof of back landing leg crossbeam 20, realizes the atress equilibrium.

When the two rear leg beam pulley blocks 22 in this embodiment need to move, that is, when the two rear legs 4000 need to move, the nuts screwed on the bolts at the rear leg positioning pressing plates 229 can be loosened, the nuts of the bolts connected between the rear leg equalizing seat 23 and the top plate of the rear leg lower pulley seat 221 are loosened, and the push rods of the rear leg main oil cylinders 272 retract, at this time, the top plate edge of the rear leg beam 20 presses against the top surface of the rear leg roller 222, so that the rear leg beam pulley block 22 can move along the rear leg beam 20, meanwhile, the nuts of the bolts connected between the rear leg equalizing seat 23 and the top plate of the rear leg lower pulley seat 221 are loosened, a plurality of rear leg edge arc-shaped through grooves 223 are formed at the edge of the top plate of the rear leg lower pulley seat 221, which can realize that the rear leg equalizing seat 23 horizontally rotates a certain angle along the top plate of the rear leg lower pulley seat 221, when the rear supporting leg device moves along the top surface of the arc section of the box girder of the bridge frame, the rear supporting leg device can rotate to a certain extent according to the arc line and cannot be locked; meanwhile, due to the fact that a push rod of the rear support leg main oil cylinder 272 retracts, the bottom surface of the rear support leg moving hanging wheel 276 is made to be tightly attached to the top surface of the wear-resistant guide strip 1009, the bottom plate of the bottom transverse main beam 1001 is not pressed above the horizontal beam of the rear support leg supporting frame 273 any more, then, the rear support leg moving speed reducing motor 274 operates, the rear support leg can be moved and conveyed along the main beam 1000 of the bridge girder erection machine, the rear support leg moving hanging wheel 276 is adopted to move in a rolling mode, friction force is small, and moving is convenient.

Meanwhile, all the guide wheels 278 can ensure that the main beam 1000 of the bridge girder erection machine is positioned between all the guide wheels 278 when the rear leg moving hanging wheel 276 moves along the top surface of the wear-resistant guide strip 1009, so that excessive deviation between the position of the rear leg supporting frame 27 and the main beam 1000 of the bridge girder erection machine is avoided when the rear leg moving hanging wheel 276 moves, and the bottom surface of the rear leg moving hanging wheel 276 is always pressed against the top surface of the wear-resistant guide strip 1009 when the rear leg moving hanging wheel moves.

In this embodiment, the bottom surface of the rear leg beam 20 is fixed with four bottom rotation support frames 21, the rear leg bottom rotation support frames 211 of the four bottom rotation support frames 21 are fixedly connected to the bottom surface of the rear leg beam 20 through bolts, a plurality of connection screw holes are formed in the bottom surface of the rear leg beam 20, the rear leg bottom rotation support frames 211 are installed in the corresponding connection screw holes as required, so that the positions of the bottom rotation support frames 21 on the bottom surface of the rear leg beam 20 are changed as required, and different installation requirements are met.

In this embodiment, when the rotary lifting tool 6000 runs through the steel wire rope, the chain and the like on the pulley block 18, the movable pulley on the rotary lifting tool can be lifted (the structures such as the steel wire rope, the fixed pulley and the like of the pulley block 18 are not shown in the drawings, and are common parts, and are not described in detail), so that the movable pulley seat 181 can be lifted up and down, the main seat body 17 on the movable pulley seat can be lifted up and down, the lower lifting connection seat 11 can be lifted up and down, and the material mounted on the movable pulley seat can be lifted up and down.

Two rotary driving mechanisms 19 are installed in the embodiment, and the two driving gears 191 can rotate in the same direction through the operation of the two rotary driving mechanisms 19, so that the transmission gears 161 are driven to rotate, the lifted material can horizontally rotate, and the position of the lifted material can be changed.

The lifting material can be inclined and overturned by a certain angle from front to back by pushing the push rod of the side adjusting oil cylinder 12, the lifting appliance main beam 10 can be inclined from left to right in the vertical direction by pushing the push rod of the side adjusting oil cylinder 15, the left end and the right end of the lifting material can be inclined, the requirements of different installation positions are met, and the lifting appliance is convenient to change and good in effect.

The edge adjusting cylinder 12 and the side adjusting cylinder 15 in this embodiment are both adjustable cylinders, which are commonly used cylinders and will not be described in detail.

Claims

1. The utility model provides a bridge crane of large-span high stability, includes girder (1000), main landing leg (2000), interim landing leg (3000), back landing leg (4000), jack-up dolly (5000) and rotatory hoist (6000), its characterized in that: the main beam (1000) comprises auxiliary main beams (100) which are parallel left and right, a plurality of main beam connecting frames (200) are arranged between the two auxiliary main beams (100), and two ends of each main beam connecting frame (200) are fixed on the corresponding auxiliary main beam (100);

the auxiliary main beam (100) comprises a connecting beam (103) at the upper part and two bottom transverse main beams (1001) below, a plurality of welding fixing frames (104) are fixed on the connecting beam (103) and the bottom transverse main beams (1001), a plurality of side connecting rods (105) are arranged between the connecting beam (103) and the bottom transverse main beams (1001), the upper ends of the side connecting rods (105) are fixed on the welding fixing frames (104) at the connecting beam (103), and the lower ends of the side connecting rods (105) are fixed on the welding fixing frames (104) at the bottom transverse main beams (1001);

guide rails are fixed on the top surfaces of the connecting beams (103), and the crane trolley (5000) is placed on the two guide rails;

the temporary support leg (3000), the rear support leg (4000) and the main support leg (2000) are arranged on a transverse main beam (1001) at the bottom, and the rotary lifting appliance (6000) is arranged on the crane trolley (5000);

the main supporting leg (2000) comprises a main supporting leg transverse main beam (40), two heightening frames (49) are fixed on the bottom surface of the main supporting leg transverse main beam (40), and the bottom surfaces of the heightening frames (49) are fixed on the supporting leg lifting mechanism;

two rotary mechanism bases (41) are arranged on a top plate of the main support leg transverse main beam (40), and an adjusting screw mechanism (42) and a movable pushing oil cylinder (43) are arranged between the two rotary mechanism bases (41);

the middle part of the top plate of the rotating mechanism base (41) is hinged with a rotating connecting seat (50) through a hinged shaft, a plurality of connecting through holes are formed in the edge part of the bottom plate of the rotating connecting seat (50), a plurality of arc-shaped through grooves (419) are formed in the edge part of the top plate of the rotating mechanism base (41), the screw part of the fixing bolt is inserted and sleeved in the connecting through holes and the corresponding arc-shaped through grooves (419), and the top part of the screw part of the fixing bolt extends out of the top surface of the bottom plate of the rotating connecting seat (50) and is in threaded connection with two locking nuts which are pressed against each other;

the left part and the right part of the front part and the rear part of the top surface of the top plate of the rotary connecting seat (50) are respectively fixed with a rotary side supporting plate (51), the lower part of an equalizing beam (52) is positioned between the two corresponding rotary side supporting plates (51), and the equalizing beam (52) is hinged on the two rotary side supporting plates (51) through a hinged shaft;

mounting through grooves (521) are formed in the left side plate and the right side plate of the front part and the rear part of the equalizing beam (52), two anti-rolling wheel mounting frames (60) are positioned above the left part and the right part of the equalizing beam (52), two ends of a hinge shaft of each anti-rolling wheel mounting frame (60) are inserted into the corresponding two mounting through grooves (521), and the anti-rolling wheel mounting frames (60) are hinged to the equalizing beam (52) through the hinge shaft;

the middle of the equalizing beam (52) is provided with a middle supporting plate, the top surface of the middle supporting plate is provided with a main supporting oil cylinder (53), the top surface of a push rod of the main supporting oil cylinder (53) is fixed with a main limiting frame (54), a bottom transverse main beam (1001) is inserted in the main limiting frame (54), the bottom surface of the bottom transverse main beam (1001) is close to the bottom plate of the main limiting frame (54), the top surfaces of the left end and the right end of the main limiting frame (54) are fixed with side blocking blocks (541), and the side blocking blocks (541) are positioned at two sides of the bottom transverse main beam (1001);

the upper rotating wheel (63) of the anti-rolling wheel mounting rack (60) is positioned on the top surface of the edge part of the corresponding bottom transverse main beam (1001);

the rear support leg (4000) comprises a rear support leg cross beam (20), a plurality of bottom rotary support frames (21) are fixed on the bottom surface of the rear support leg cross beam (20), a rear support leg cross beam pulley block (22) is installed on the rear support leg cross beam (20), a rear support leg balance seat (23) is fixedly connected on a top plate of the rear support leg cross beam pulley block (22) through bolts, an inner sleeve body connecting seat (24) is hinged on the rear support leg balance seat (23) through a balance shaft, an inner sleeve body (25) is fixed on the top surface of the inner sleeve body connecting seat (24), the upper part of the inner sleeve body (25) is inserted and sleeved in the outer sleeve body (26), two oblique support arms (271) at the bottom of the rear support leg support frame (27) are fixed on two outer side walls of the outer sleeve body (26), a rear support leg main oil cylinder (272) is hinged in the middle of the bottom surface of a horizontal beam of the rear support leg support frame (27), and a lower connecting seat is fixed on the top surface of the inner sleeve body connecting seat (24), the bottom end of a push rod of the rear supporting leg main oil cylinder (272) is hinged on the lower connecting seat through a hinge shaft, and the inner sleeve body (25) and the outer sleeve body (26) are fixedly connected through a plurality of rear supporting leg pin shafts (201);

a rear leg side supporting frame (273) is fixed to the left and right of the top surface of a horizontal beam of the rear leg supporting frame (27), a rear leg moving speed reducing motor (274) is fixed to the middle of the outer side wall of the rear leg side supporting frame (273), an output shaft of the rear leg moving speed reducing motor (274) penetrates through the rear leg side supporting frame (273) and is fixed with a rear leg moving driving gear (275), a rear leg moving hanging wheel (276) is hinged to the rear leg side supporting frame (273) through a bearing, a rear leg transmission gear (277) is fixed to the inner end of the rear leg moving hanging wheel (276), the rear leg transmission gear (277) is meshed with the rear leg moving driving gear (275), and the rear leg moving hanging wheel (276) is located on the top surface of the side portion of the corresponding bottom transverse main beam (1001);

be fixed with main drive gear motor (61) on the lateral wall of a curb plate of anti-gyro wheel mounting bracket (60), the output shaft plug bush of main drive gear motor (61) is in a curb plate of anti-gyro wheel mounting bracket (60), be fixed with anti-gyro wheel drive gear (62) on the output shaft of main drive gear motor (61), the inside wall of the curb plate that corresponds is stretched out to the profile of tooth portion of anti-gyro wheel drive gear (62), the upper portion of a curb plate of anti-gyro wheel mounting bracket (60) articulates there is last runner wheel (63), it has first outer ring gear (631) to go up to fix or the shaping on the lateral wall of runner wheel (63), be equipped with at least one down roller body (64) between two curb plates of anti-gyro wheel mounting bracket (60), lower roller body (64) articulate on anti-gyro wheel mounting bracket (60) through the bearing, the one end department of lower roller body (64) is equipped with second outer ring gear (641), anti-gyro wheel drive gear (62) drive first outer ring gear (631), The second external gear ring (641) rotates;

the middle part of one side plate of the counter roller mounting frame (60) is hinged with an intermediate idle gear (65) through a bearing, the outer tooth part of the intermediate idle gear (65) is meshed with a first outer gear ring (631) and a second outer gear ring (641), and the second outer gear ring (641) is meshed with a counter roller driving gear (62).

2. A large-span high-stability bridge girder erection machine according to claim 1, wherein: the supporting leg lifting mechanism comprises an upper telescopic outer sleeve part (31), the heightening frame (49) is fixed on the top surface of the middle part of the upper telescopic outer sleeve part (31), a lower telescopic outer sleeve part (32) is arranged right below the upper telescopic outer sleeve part (31), two main vertical supporting legs (30) are inserted and sleeved in the upper telescopic outer sleeve part (31) and the lower telescopic outer sleeve part (32), a supporting leg lifting oil cylinder (33) is arranged in the middle part between the middle part of the upper telescopic outer sleeve part (31) and the lower telescopic outer sleeve part (32), a top oil cylinder seat of the supporting leg lifting oil cylinder (33) is hinged in the upper telescopic outer sleeve part (31) through a hinge shaft, and the end part of a push rod of the supporting leg lifting oil cylinder (33) is hinged in the lower telescopic outer sleeve part (32) through the hinge shaft;

all the shaping has a plurality of vertical corresponding connect the via hole (34) around of arranging on two curb plates around main vertical support leg (30), goes up flexible outer cover portion (31) and all the shaping has corresponding flexible connect the via hole (35) on the wallboard around both ends about with lower flexible outer cover portion (32), and flexible connect the via hole (35) and corresponding connect the via hole (34) front and back are aligned mutually, and bolt (36) plug bush is in flexible connect the via hole (35) that correspond and connect the via hole (34) that correspond.

3. A large-span high-stability bridge girder erection machine according to claim 1, wherein: the adjusting screw mechanism (42) comprises two adjusting sleeves (421) and a middle double-head adjusting screw (422), two screw connection rod parts of the middle double-head adjusting screw (422) are in screw connection with screw connection sleeve bodies (423) arranged at one ends of the corresponding adjusting sleeves (421), and the other ends of the adjusting sleeves (421) are hinged to corresponding rotating mechanism bases (41);

a transverse long through groove (430) is formed in the middle of a top plate of the main support leg transverse main beam (40), a long positioning plate (44) is fixed in the main support leg transverse main beam (40) right below the transverse long through groove (430), one end of a movable pushing oil cylinder (43) is hinged to an oil cylinder connecting seat (45), the oil cylinder connecting seat (45) is inserted in the transverse long through groove (430) and installed on the long positioning plate (44), and the end of a push rod of the movable pushing oil cylinder (43) is hinged to one of the rotating mechanism bases (41);

a plurality of long positioning through grooves (441) are formed in the long positioning plate (44), an upper positioning slot (451) is formed in the middle of the bottom plate of the oil cylinder connecting seat (45), a positioning locking block (46) is inserted into the corresponding upper positioning slot (451) and the long positioning through groove (441), a protruding portion (461) is formed on the outer side wall of the upper portion of the positioning locking block (46), and the protruding portion (461) is pressed against the top surface of the bottom plate of the oil cylinder connecting seat (45).

4. A large-span high-stability bridge girder erection machine according to claim 3, wherein: one end of the movable pushing oil cylinder (43) is hinged on the oil cylinder connecting seat (45) through a hinged shaft;

an oil cylinder lug seat (411) is fixed in the middle of one side of a rotating mechanism base (41), and the end part of a push rod for moving and pushing an oil cylinder (43) is hinged on the oil cylinder lug seat (411) through a hinged shaft;

all be equipped with adjusting screw mechanism (42) between the left part and the right part of two rotary mechanism bases (41), the one end of adjusting sleeve (421) is articulated on connecting ear seat (412) that are fixed with on the lateral wall of corresponding rotary mechanism base (41) through the articulated shaft of vertical state.

5. A large-span high-stability bridge girder erection machine according to claim 1, wherein: a plurality of bottom cross beams are arranged between the two bottom transverse main beams (1001) below, and two ends of each bottom cross beam are welded and fixed on the two bottom transverse main beams (1001).

6. A large-span high-stability bridge girder erection machine according to claim 1, wherein: a bottom plate of the rotating mechanism base (41) is hinged with a movable guide roller (48) through a bearing, and the movable guide roller (48) is inserted and sleeved in the transverse long through groove (430).

7. A large-span high-stability bridge girder erection machine according to claim 1, wherein: the rotary lifting appliance (6000) comprises a lifting appliance main beam (10), and the lifting appliance main beam (10) is hinged with a lower lifting connecting seat (11) through the bottom ends of a left end plate and a right end plate of the lifting appliance main beam (10) through hinged shafts;

one end of the lower hoisting connecting seat (11) is hinged with the end part of a push rod of the edge adjusting oil cylinder (12) through a hinged shaft, and the cylinder body end of the edge adjusting oil cylinder (12) is hinged on the left end plate or the right end plate of the main beam (10) of the sling through a hinged shaft;

the middle part of the hanger main beam (10) is hinged with an adjusting lug seat (13) through a first hinged shaft, the upper part of the adjusting lug seat (13) extends out of the top surface of the hanger main beam (10), the right part of the top surface of the hanger main beam (10) is fixedly provided with a connecting seat (14), the end part of a push rod of a side adjusting oil cylinder (15) is hinged on the connecting seat (14) through a hinged shaft, and a cylinder body connecting part of the side adjusting oil cylinder (15) is hinged on the upper part of the adjusting lug seat (13) through a hinged shaft;

the upper part of the adjusting lug seat (13) is hinged with a rotary main shaft (16) through a hinged shaft;

the upper part of the rotating main shaft (16) is hinged on the main base body (17), and a transmission gear (161) is fixed on the rotating main shaft (16);

a movable pulley seat (181) of a pulley block (18) is arranged on the main seat body (17), and a fixed pulley of the pulley block (18) is fixed on a hoisting trolley (5000);

the main seat body (17) is provided with a rotary driving mechanism (19), an output shaft of the rotary driving mechanism (19) is fixedly provided with a driving gear (191), and the driving gear (191) is meshed with the transmission gear (161).

8. A large-span high-stability bridge girder erection machine according to claim 1, wherein: and a limiting space (55) is arranged between the bottom surface of the bottom plate of the equalizing beam (52) and the top plate of the rotary connecting seat (50).

9. A large-span high-stability bridge girder erection machine according to claim 1, wherein: arc-shaped wall plates are fixed at the tops of the front part and the rear part of the equalizing beam (52), the bottom plates of the anti-rolling wheel mounting frames (60) are arc-shaped bottom plates, the arc-shaped bottom plates correspond to the arc-shaped wall plates from top to bottom and are close to the arc-shaped wall plates, and the inner side wall plates of the anti-rolling wheel mounting frames (60) are close to the front wall plate or the rear wall plate in the middle of the equalizing beam (52).