CN105523473A - Conveniently overhauled crane carriage for crane - Google Patents
Conveniently overhauled crane carriage for crane Download PDFInfo
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- CN105523473A CN105523473A CN201410510549.5A CN201410510549A CN105523473A CN 105523473 A CN105523473 A CN 105523473A CN 201410510549 A CN201410510549 A CN 201410510549A CN 105523473 A CN105523473 A CN 105523473A
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Abstract
The invention discloses a conveniently overhauled crane carriage for a crane. A movable maintenance platform is arranged on the crane carriage. A crane carriage frame comprises two walking beams and a bearing beam which are arranged in an I shape. The two ends of each winding drum are arranged on two winding drum fixing bases respectively. A dedicated monitoring device comprises an installing frame composed of two fixed segments and a horizontal segment. A driving chain wheel, a driven chain wheel and a chain are arranged in the horizontal segment, a horizontal mobile platform is fixed to the chain, and a rotary mobile platform is rotationally connected to the horizontal mobile platform. According to the conveniently overhauled crane carriage for the crane, the crane carriage can be produced through a modularized assembling mode and has the advantages of being simple in structure, few in welding point and light in self weight, welding portions can be decreased effectively at the same time, and the situation that the errors of crane carriage wheel lines are too large due to welding deformation is avoided; in addition, whether the surface of a main beam has deformation or cracks or the working conditions of driving wheels and driven wheels can be monitored in real time through a camera, and meanwhile the overhauling efficiency is improved.
Description
Technical field
The present invention relates to a kind of hoisting crane crane carriage, particularly relate to a kind of hoisting crane crane carriage of easy access.
Background technology
Crane carriage is a part for crane span structure type hoisting crane, crane carriage laterally runs along the girder be laid on crane span structure, the space handling material below crane span structure can be made full use of, not by the obstruction of wayside equipment, be widely used in the places such as indoor and outdoor warehouse, factory building, harbour and outdoor yard, existing crane in bridge type uses crane carriage to realize transverse shifting mostly.And in use, because the height of crane carriage erection is higher, the mode of operation of crane carriage is difficult to realize monitoring in real time.In the service work of existing crane carriage, particularly for some unrealized fully enclosed modularization dollies (not namely being provided with the crane carriage of wheel cowl), need have undeformed or crackle, driving wheel and flower wheel mode of operation etc. to observe to girder surface.Existing repair method normally service personnel climb up both sides overhead on end carriage, then the servicing ramp climbing up crane carriage overhauls, and there is security risk, and overhaul efficiency is lower; Meanwhile, existing crane carriage servicing ramp mostly is fixed installation, takes up room.And existing crane carriage, particularly unrealized fully enclosed modularization dolly, directly can there is undeformed or crackle or driving wheel and flower wheel mode of operation by visual observations girder surface completely.
Summary of the invention
The object of this invention is to provide a kind of hoisting crane crane carriage of easy access, crane carriage production can be carried out by modularization assembling mode, enhance productivity, have that structure is simple, weld nugget is few, from the advantage of heavy and light, effective minimizing weld, avoids the crane carriage vehicle wheel line error that causes due to welding deformation excessive, simultaneously, adopt movable inspection platform, reduce to take up room; The present invention can also carry out the adjustment of the position of pick up camera, angle and height according to actual monitored demand, realize having undeformed or crackle or driving wheel and flower wheel mode of operation to monitor in real time to girder surface, improve overhaul efficiency simultaneously.
The present invention adopts following technical proposals:
The hoisting crane crane carriage of easy access, comprises crane carriage and is arranged on the dedicated monitoring device on crane carriage, described crane carriage comprises car frame and is arranged on elevator module, walking module and the movable maintenance platform in car frame, car frame comprises two walking beams be arranged in parallel, bearing beam has been bolted in the middle part of two walking beams, two walking beams and bearing beam are that I shape is arranged, and bearing beam are provided with fixed pulley group, elevator module comprises two cover hoisting mechanisms, two cover hoisting mechanisms are separately positioned on bearing beam both sides, often overlap the lifting motor that hoisting mechanism includes reel and is arranged on reel one end, steel rope is provided with in reel, steel rope is provided with suspension hook, reel two ends are separately positioned on two reel permanent seats, and two reel permanent seats are respectively by being bolted to two the walking beam upper surfaces be arranged in parallel, walking module comprises moving trolley wheels, runs motor and run reductor, moving trolley wheels comprise the driven wheel group be made up of two driven wheels and the adhesion wheel group be made up of two adhesion wheels, two driven wheels are separately positioned on two walking beam outer surfaces of bearing beam side, two adhesion wheels are separately positioned on two walking beam outer surfaces of bearing beam opposite side, two the walking beam ends being provided with adhesion wheel side are respectively arranged with to be run motor and runs reductor, and two groups are run motor and drive two adhesion wheels respectively by operation reductor, described movable maintenance platform is by back shield, base plate and two side plate compositions, side plate comprises C shape loading plate, base plate supporting plate and back shield supporting plate composition, the bottom of C shape loading plate and one end of base plate supporting plate are fixed, the other end of base plate supporting plate and the lower end of back shield supporting plate are fixed, the two ends of base plate are separately fixed on two base plate supporting plates, the two ends of back shield are separately fixed on two back shield supporting plates, two lifting motors in two cover hoisting mechanisms are arranged at the same side of two reels, in two side plates the upper end of C shape loading plate respectively with the walking beam of two reel opposite sides about two end faces hinged,
Described dedicated monitoring device comprises the erecting frame be arranged between two parallel walking beams, described erecting frame comprises two canned paragraphs and the horizontal segment being connected two canned paragraphs, canned paragraph is made up of pipe link and inverted U-shaped buckle, U-shaped buckle be located on walking beam, one end of pipe link is fixed on the horizontal ends of U-shaped buckle, and the other end of pipe link and the bottom surface, end of horizontal segment are fixed; Horizontal segment comprises the rectangular housing of hollow, the upper surface of housing is provided with oblong perforate, in housing, two ends are respectively arranged with drive sprocket and driven sprocket, chain is provided with between drive sprocket and driven sprocket, drive sprocket is driven by parallel motion motor, chain is fixed with parallel motion platform, the side-to-side movement in oblong perforate of parallel motion platform; Parallel motion platform is provided with bearing seat, bearing is provided with in bearing seat, outer ring and the bearing seat of bearing are fixed, the inner ring of bearing and the bottom of bull stick are fixed, the top of bull stick is fixed with in rotary moving, and bull stick outer ring sleeve is provided with arm revolving gear, and parallel motion platform is also provided with motor in rotary moving, the mouth of motor in rotary moving is provided with driving gear, and driving gear engages with arm revolving gear; Platform in rotary moving is provided with two the motor mounting grooves be located along the same line, be fixed with the first linear stepping motor and the second linear stepping motor in two motor mounting grooves respectively, the movable end of two linear stepping motors respectively with the afterbody of pick up camera and middle part hinged; Parallel motion motor, motor in rotary moving, the first linear stepping motor are connected hand-held control handle with the control signal input end of the second linear stepping motor respectively by wire; The signal output part of pick up camera is connected to read-out by signal transmssion line.
Described parallel motion motor adopts clockwise and anticlockwise motor, and motor in rotary moving adopts step wise rotating machine.
The surface, the left and right sides of described parallel motion platform is provided with buffering stop motion mechanism, described buffering stop motion mechanism comprises the buffering stop device case consistent with parallel motion platform left and right sides surface size, buffering stop device case adopts the oblong housing of horizontally disposed hollow, buffering stop device case surface offers two circular opens, the bumpar post that yielding rubber is made is provided with in each circular open, the front end of bumpar post protrudes from buffering stop device case by circular open, the middle part of bumpar post is provided with annular stop plate, annular stop plate is positioned at buffering stop device case, the afterbody rear of bumpar post is fixed with the recoil spring be arranged in buffering stop device case, before and after buffering stop device case inside, both sides inside face is respectively arranged with button switch, the shape of button switch is triangle, the circuit parallel of two button switch compositions, the circuit parallel of buffering stop motor type relay coil and time relay coil composition is connected with power module, the parallel circuit in series of the normally closed contact of buffering stop motor type relay and the open contact composition of time relay is on parallel motion motor feed circuit.
Described U-shaped buckle is provided with binding bolt.
The diameter of described driving gear is less than arm revolving gear diameter.
The present invention crosses in the car frame that modular elevator module and walking module to be arranged on and to be bolted to connection, crane carriage production can be carried out by modularization assembling mode, enhance productivity, have that structure is simple, weld nugget is few, from the advantage of heavy and light, simultaneously effectively can reduce weld, avoid the crane carriage vehicle wheel line error that causes due to welding deformation excessive.Elevator module and walking module are all set directly on two walking beams, can improve the mean forced of car frame, extend the service life of crane carriage; The movable maintenance platform that crane carriage is arranged, can be applicable to maybe cannot arrange in some compact conformation, inconvenience the crane carriage used in the space of maintenance platform, save space; The present invention is also provided with dedicated monitoring device, parallel motion motor, motor in rotary moving, the first linear stepping motor and the second linear stepping motor can be used to control the adjustment of camera position, angle and height, and by the respective outer side edges pick up camera of particular design complete to girder surface have undeformed or crackle or driving wheel and flower wheel mode of operation to monitor in real time, improve overhaul efficiency simultaneously.
Accompanying drawing explanation
Fig. 1 is the structural representation of crane carriage of the present invention;
Fig. 2 is the structural representation of movable maintenance platform when putting down;
Fig. 3 is the structural representation of movable maintenance platform when packing up;
Fig. 4 is the structural representation of dedicated monitoring device;
Fig. 5 is the structural representation of parallel motion platform;
Fig. 6 is the plan structure schematic diagram of buffering stop motion mechanism;
Fig. 7 is the junction circuit schematic diagram of button switch, buffering stop motor type relay coil and time relay coil;
Fig. 8 is that parallel motion motor feed circuit controls schematic diagram.
Detailed description of the invention
As shown in Figures 1 to 8, the hoisting crane crane carriage of easy access of the present invention, comprises crane carriage and is arranged on the dedicated monitoring device on crane carriage.
Described crane carriage comprises car frame and is arranged on elevator module, walking module and the movable maintenance platform in car frame, described car frame comprises two walking beams be arranged in parallel 25, bearing beam 26 has been bolted in the middle part of two walking beams 25, two walking beams 25 and bearing beam 26 are arranged in I shape, the reliability that two walking beams 25 are connected with bearing beam 26 and commonality can either be ensured, effectively can also reduce weld simultaneously, avoid the phenomenon because welding deformation causes crane carriage vehicle wheel line error excessive.Bearing beam 26 is provided with fixed pulley group 27.Elevator module comprises two cover hoisting mechanisms, two cover hoisting mechanisms are separately positioned on bearing beam 26 both sides, often overlap the lifting motor 29 that hoisting mechanism includes reel 28 and is arranged on reel 28 one end, steel rope is provided with in reel 28, steel rope is provided with suspension hook, reel 28 two ends are arranged on two reel permanent seats 30 respectively by bolt, and two reel permanent seats 30 are respectively by being bolted to two walking beam 25 upper surfaces be arranged in parallel.Walking module comprises moving trolley wheels, run motor 31 and run reductor 32, moving trolley wheels comprise the driven wheel group be made up of two driven wheels and the adhesion wheel group be made up of two adhesion wheels, two driven wheels are separately positioned on two walking beam 25 outer surfaces of bearing beam 26 side, two adhesion wheels are separately positioned on two walking beam 25 outer surfaces of bearing beam 26 opposite side, two walking beam 25 ends being provided with adhesion wheel side are respectively arranged with to be run motor 31 and runs reductor 32, two groups are run motor 31 and drive two adhesion wheels respectively by operation reductor 32.
By modular elevator module and walking module being arranged in the car frame that is bolted to connection, crane carriage production can be carried out by modularization assembling mode, enhance productivity, have that structure is simple, weld nugget is few, from the advantage of heavy and light, simultaneously effectively can reduce weld, avoid the crane carriage vehicle wheel line error that causes due to welding deformation excessive.Meanwhile, elevator module and walking module are all set directly on two walking beams 25, can improve the mean forced of car frame, extend the service life of crane carriage.
Consider to some compact conformation, inconvenience maybe cannot arrange the usage space of maintenance platform, the present invention is also provided with movable maintenance platform, described movable maintenance platform is by back shield, base plate and two side plate compositions, side plate comprises C shape loading plate 33, base plate supporting plate 34 and back shield supporting plate 35 form, the bottom of C shape loading plate 33 and one end of base plate supporting plate 34 are fixed, the other end of base plate supporting plate 34 and the lower end 36 of back shield supporting plate 35 are fixed, the two ends of base plate are separately fixed on two base plate supporting plates 34, the two ends of back shield are separately fixed on two back shield supporting plates 35, two lifting motors 29 in two cover hoisting mechanisms are arranged at the same side of two reels 28, in two side plates, the upper end 37 of C shape loading plate 33 is hinged with walking beam about 25 two end faces of two reel 28 opposite sides respectively.For the ease of being fixed the movable maintenance platform under different conditions, the middle part of C shape loading plate 33 is provided with locating piece 38, locating piece 38 is provided with C shape loading plate pin-and-hole 39, when base plate supporting plate 34 is positioned at level attitude and when base plate supporting plate 34 is positioned at vertical position, two the walking beam 25 endface position places corresponding with C shape loading plate pin-and-hole 39 offer two walking beam end face pin holes.When needs put down movable maintenance platform overhaul time, only need left-hand revolution 90 °, base plate supporting plate 34 is positioned at level attitude, can carry out the use of movable maintenance platform; When not needing to put down movable maintenance platform and overhauling, only need clickwise 90 °, make base plate supporting plate 34 be positioned at vertical position, movable maintenance platform can be packed up.When base plate supporting plate 34 is positioned at level attitude or when base plate supporting plate 34 is positioned at vertical position, only needs to utilize pin to be inserted in corresponding C shape loading plate pin-and-hole 39 and walking beam end face pin hole, the fixing of movable maintenance platform position can be realized.
Described dedicated monitoring device comprises the hoisting crane crane carriage of easy access, comprise the erecting frame be arranged between two parallel walking beams 25, described erecting frame comprises two canned paragraphs and the horizontal segment 1 being connected two canned paragraphs, canned paragraph is made up of pipe link 2 and inverted U-shaped buckle 3, U-shaped buckle 3 be located on walking beam, commonality is high, can be used in respectively on multiple stage crane span structure type hoisting crane crane carriage by removing and installing.U-shaped buckle 3 is also provided with binding bolt 4, can ensures that the position between erecting frame and walking beam is fixed further.One end of pipe link 2 is fixed on the horizontal ends of U-shaped buckle 3, and the other end of pipe link 2 and the bottom surface, end of horizontal segment 1 are fixed.Horizontal segment 1 comprises the rectangular housing of hollow, the upper surface of housing is provided with oblong perforate 5, in housing, two ends are respectively arranged with drive sprocket and driven sprocket, chain 6 is provided with between drive sprocket and driven sprocket, drive sprocket is driven by parallel motion motor M, chain 6 is fixed with parallel motion platform 7, parallel motion platform 7 side-to-side movement in oblong perforate 5; Parallel motion platform 7 is provided with bearing seat 8, bearing 9 is provided with in bearing seat 8, outer ring and the bearing seat 8 of bearing 9 are fixed, the inner ring of bearing 9 and the bottom of bull stick 10 are fixed, the top of bull stick 10 is fixed with in rotary moving 11, and bull stick 10 outer ring sleeve is provided with arm revolving gear 12, parallel motion platform 7 is also provided with motor 13 in rotary moving, the mouth of motor 13 in rotary moving is provided with driving gear 14, and driving gear 14 engages with arm revolving gear 12; In order to realize the meticulous adjustment of rotational angle, the diameter of driving gear 14 is less than arm revolving gear 12 diameter.In rotary moving 11 is provided with two the motor mounting grooves be located along the same line, the movable end being fixed with the first linear stepping motor 15 and the second linear stepping motor 16, first linear stepping motor 15 and the second linear stepping motor 16 in two motor mounting grooves respectively respectively with the afterbody of pick up camera 17 and middle part hinged; Parallel motion motor M, motor in rotary moving 13, first linear stepping motor 15 are connected hand-held control handle with the control signal input end of the second linear stepping motor 16 respectively by wire; The signal output part of pick up camera 17 is connected to read-out by signal transmssion line.In the present embodiment, parallel motion motor M adopts clockwise and anticlockwise motor, and motor 13 in rotary moving adopts step wise rotating machine.In use, testing staff can utilize hand-held control handle level of control mobile motor M to rotate forward or reversion, thus controls the adjustment of pick up camera 17 on right position, thus enables testing staff observe the real-time pictures of the crane carriage left and right sides in the present invention; Testing staff can utilize hand-held control handle to control the rotation of motor 13 in rotary moving, to realize the adjustment of pick up camera 17 observed ray in bull stick 10 circumference; Hand-held control handle can be utilized to control the first linear stepping motor 15 for testing staff and the second linear stepping motor 16 moves, thus regulates the angle of pick up camera 17 camera lens.
Rotating in order to avoid parallel motion motor M excessively makes parallel motion platform 7 bump against the two ends, left and right of oblong perforate 5, the present invention is also provided with buffering stop motion mechanism 24 on the surface, the left and right sides of parallel motion platform 7, described buffering stop motion mechanism 24 comprises the buffering stop device case 18 consistent with parallel motion platform 7 left and right sides surface size, buffering stop device case 18 adopts the oblong housing of horizontally disposed hollow, buffering stop device case 18 surface offers two circular opens 19, the bumpar post 20 that yielding rubber is made is provided with in each circular open 19, the front end of bumpar post 20 protrudes from buffering stop device case 18 by circular open 19, the middle part of bumpar post 20 is provided with annular stop plate 21, annular stop plate 21 is positioned at buffering stop device case 18, the afterbody rear of bumpar post 20 is fixed with the recoil spring 22 be arranged in buffering stop device case 18, before and after buffering stop device case 18 is inner, both sides inside face is respectively arranged with button switch 23, the shape of button switch 23 is triangle, the circuit parallel that two button switchs 23 form, the circuit parallel that buffering stop motor type relay coil KM and time relay coil KT forms is connected with power module, the parallel circuit in series that the normally closed contact KM1 of buffering stop motor type relay and the open contact KT1 of time relay forms is on parallel motion motor M feed circuit.
When parallel motion platform 7 moves to the left end of end position and oblong perforate 5 or right-hand member collides, the left end of elder generation and oblong perforate 5 or right-hand member collide by two bumpar posts 20 or one of them bumpar post 20, because bumpar post 20, recoil spring 22 all can provide certain stroke, will effectively avoid left end or the right-hand member direct impact of parallel motion platform 7 and oblong perforate 5.Simultaneously, when bumpar post 20 is to buffering stop device case 18 internal motion, annular stop plate 21 will press the button switch 23 in motion process, now buffering stop motor type relay coil KM and time relay coil KT obtains electric, the normally closed contact KM1 being connected on the buffering stop motor type relay coil KM on parallel motion motor M feed circuit disconnects, the power-off of parallel motion motor M quits work, and can ensure that crane carriage stops mobile.After the power-off of parallel motion motor M quits work a period of time, because the open contact KT1 of time relay will time closing, now parallel motion motor M will again electric, now testing staff is namely by hand-held control handle level of control mobile motor M counter motion.In parallel motion platform 7 counter motion process, annular stop plate 21 will again press the button switch 23 in motion process, and now buffer alarm relay coil and time relay coil KT power-off, return to initial condition.Two bumpar posts 20 that left and right is arranged can improve accuracy and the promptness of warning, and the warning avoiding left end or right-hand member because of oblong perforate 5 to avoid unfairness and cause is excessively late, causes industrial accident.
Claims (5)
1. the hoisting crane crane carriage of easy access, is characterized in that: comprise crane carriage and be arranged on the dedicated monitoring device on crane carriage, described crane carriage comprises car frame and is arranged on elevator module, walking module and the movable maintenance platform in car frame, car frame comprises two walking beams be arranged in parallel, bearing beam has been bolted in the middle part of two walking beams, two walking beams and bearing beam are that I shape is arranged, and bearing beam are provided with fixed pulley group, elevator module comprises two cover hoisting mechanisms, two cover hoisting mechanisms are separately positioned on bearing beam both sides, often overlap the lifting motor that hoisting mechanism includes reel and is arranged on reel one end, steel rope is provided with in reel, steel rope is provided with suspension hook, reel two ends are separately positioned on two reel permanent seats, and two reel permanent seats are respectively by being bolted to two the walking beam upper surfaces be arranged in parallel, walking module comprises moving trolley wheels, runs motor and run reductor, moving trolley wheels comprise the driven wheel group be made up of two driven wheels and the adhesion wheel group be made up of two adhesion wheels, two driven wheels are separately positioned on two walking beam outer surfaces of bearing beam side, two adhesion wheels are separately positioned on two walking beam outer surfaces of bearing beam opposite side, two the walking beam ends being provided with adhesion wheel side are respectively arranged with to be run motor and runs reductor, and two groups are run motor and drive two adhesion wheels respectively by operation reductor, described movable maintenance platform is by back shield, base plate and two side plate compositions, side plate comprises C shape loading plate, base plate supporting plate and back shield supporting plate composition, the bottom of C shape loading plate and one end of base plate supporting plate are fixed, the other end of base plate supporting plate and the lower end of back shield supporting plate are fixed, the two ends of base plate are separately fixed on two base plate supporting plates, the two ends of back shield are separately fixed on two back shield supporting plates, two lifting motors in two cover hoisting mechanisms are arranged at the same side of two reels, in two side plates the upper end of C shape loading plate respectively with the walking beam of two reel opposite sides about two end faces hinged,
Described dedicated monitoring device comprises the erecting frame be arranged between two parallel walking beams, described erecting frame comprises two canned paragraphs and the horizontal segment being connected two canned paragraphs, canned paragraph is made up of pipe link and inverted U-shaped buckle, U-shaped buckle be located on walking beam, one end of pipe link is fixed on the horizontal ends of U-shaped buckle, and the other end of pipe link and the bottom surface, end of horizontal segment are fixed; Horizontal segment comprises the rectangular housing of hollow, the upper surface of housing is provided with oblong perforate, in housing, two ends are respectively arranged with drive sprocket and driven sprocket, chain is provided with between drive sprocket and driven sprocket, drive sprocket is driven by parallel motion motor, chain is fixed with parallel motion platform, the side-to-side movement in oblong perforate of parallel motion platform; Parallel motion platform is provided with bearing seat, bearing is provided with in bearing seat, outer ring and the bearing seat of bearing are fixed, the inner ring of bearing and the bottom of bull stick are fixed, the top of bull stick is fixed with in rotary moving, and bull stick outer ring sleeve is provided with arm revolving gear, and parallel motion platform is also provided with motor in rotary moving, the mouth of motor in rotary moving is provided with driving gear, and driving gear engages with arm revolving gear; Platform in rotary moving is provided with two the motor mounting grooves be located along the same line, be fixed with the first linear stepping motor and the second linear stepping motor in two motor mounting grooves respectively, the movable end of two linear stepping motors respectively with the afterbody of pick up camera and middle part hinged; Parallel motion motor, motor in rotary moving, the first linear stepping motor are connected hand-held control handle with the control signal input end of the second linear stepping motor respectively by wire; The signal output part of pick up camera is connected to read-out by signal transmssion line.
2. the hoisting crane crane carriage of easy access according to claim 1, is characterized in that: described parallel motion motor adopts clockwise and anticlockwise motor, and motor in rotary moving adopts step wise rotating machine.
3. the hoisting crane crane carriage of easy access according to claim 2, it is characterized in that: the surface, the left and right sides of described parallel motion platform is provided with buffering stop motion mechanism, described buffering stop motion mechanism comprises the buffering stop device case consistent with parallel motion platform left and right sides surface size, buffering stop device case adopts the oblong housing of horizontally disposed hollow, buffering stop device case surface offers two circular opens, the bumpar post that yielding rubber is made is provided with in each circular open, the front end of bumpar post protrudes from buffering stop device case by circular open, the middle part of bumpar post is provided with annular stop plate, annular stop plate is positioned at buffering stop device case, the afterbody rear of bumpar post is fixed with the recoil spring be arranged in buffering stop device case, before and after buffering stop device case inside, both sides inside face is respectively arranged with button switch, the shape of button switch is triangle, the circuit parallel of two button switch compositions, the circuit parallel of buffering stop motor type relay coil and time relay coil composition is connected with power module, the parallel circuit in series of the normally closed contact of buffering stop motor type relay and the open contact composition of time relay is on parallel motion motor feed circuit.
4. the hoisting crane crane carriage of easy access according to claim 3, is characterized in that: described U-shaped buckle is provided with binding bolt.
5. the hoisting crane crane carriage of easy access according to claim 4, is characterized in that: the diameter of described driving gear is less than arm revolving gear diameter.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410510549.5A CN105523473B (en) | 2014-09-29 | 2014-09-29 | The crane trolley of easy access |
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| CN201410510549.5A CN105523473B (en) | 2014-09-29 | 2014-09-29 | The crane trolley of easy access |
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| CN105523473A true CN105523473A (en) | 2016-04-27 |
| CN105523473B CN105523473B (en) | 2017-04-05 |
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| CN106698201A (en) * | 2016-12-26 | 2017-05-24 | 上海辽清缓实业有限公司 | Automatic safe operation device provided with high-speed rail-mounted gantry cranes and used for storage yard |
| WO2019076128A1 (en) * | 2017-10-17 | 2019-04-25 | 河南省大方重型机器有限公司 | European-type double-girder bridge crane trolley |
| CN110935111A (en) * | 2019-12-31 | 2020-03-31 | 山东大学齐鲁医院 | A mobile device for tumour radiotherapy |
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| CN110935111A (en) * | 2019-12-31 | 2020-03-31 | 山东大学齐鲁医院 | A mobile device for tumour radiotherapy |
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| Publication number | Publication date |
|---|---|
| CN105523473B (en) | 2017-04-05 |
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