CN101531329A - Railway crane with outer rail superelevation levelling function - Google Patents
Railway crane with outer rail superelevation levelling function Download PDFInfo
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- CN101531329A CN101531329A CN200910060838A CN200910060838A CN101531329A CN 101531329 A CN101531329 A CN 101531329A CN 200910060838 A CN200910060838 A CN 200910060838A CN 200910060838 A CN200910060838 A CN 200910060838A CN 101531329 A CN101531329 A CN 101531329A
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- 239000007788 liquid Substances 0.000 claims description 10
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- 230000007246 mechanism Effects 0.000 description 4
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- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 2
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Abstract
The invention provides a railway crane with outer rail superelevation levelling function and belongs to the crane field. The crane realizes levelling by arranging an arched beam levelling device between an upper vehicle frame and a lower steering frame. The device pushes the vehicle frame by a piston rod base matched with a double-boom oil cylinder such that the vehicle frame relatively slides along an arched beam matched therewith through skid shoes so as to gradually reduce the inclination degree of the vehicle frame above the arched beam to realize levelling; synchronously, as the double-boom oil cylinder can rotate with certain angle around the short shafts at the two sides of a cylinder with respect to the arched beam and the arched beam base plate can also slightly rotate with respect to the steering frame, the vehicle frame and the upper components can be levelled to be horizontal even though the arched beam and the steering frame connected to the lower portion of the arched beam are inclined. The invention solves the problem that the crane integrally inclines when the crane works at a railway curve by an integrated levelling device and ensures the rated hoisting performance and working safety when the crane works at a railway curve.
Description
Technical field
A kind of locomotive crane with outer rail superelevation levelling function of the present invention belongs to the hoisting crane field.
Background technology
Locomotive crane is mainly used in railway breakdown, and the loading and unloading, equipment that also are applicable to large cargo are installed and construction of railways is laid the section of track and changed track switch, and engineer operation such as build a bridge.
When locomotive crane on bend during operation, owing to causing hoisting crane integral body, superelevation of outer rail is in heeling condition, hoisting crane is toppled easily, the load-carrying ability that out of reach is specified, and when two-wire or multi-thread track are arranged, may make the rolling stock clearance [for railway of the partial contour overshoot of hoisting crane, have influence on the operation of adjacent line vehicle, bring very big potential safety hazard.Therefore, the bevelled hoisting crane need be adjusted into horizontality, could guarantee the load-carrying ability that it is specified, and make it can not exceed gauge.
At present, technical in the leveling of locomotive crane, domestic and international existing technology comprises:
One, utilize the vertical leg oil cylinder to carry out leveling.Four jiaos that are positioned at the vehicle frame below respectively have one leg mechanism, respectively there is a vertical oil cylinder in this mechanism, the base of oil cylinder is placed on the smooth on rail next door, when hoisting operation, four supporting leg symmetries are launched certain distance, four vertical oil cylinders of supporting leg are supported on the vehicle frame below, and the weight of carrying whole hoisting crane is implemented hoisting operation then.When there is inclination on ground, utilize corresponding liquid electric control system to adjust the stroke of four vertical oil cylinders respectively, vehicle frame and above parts thereof are adjusted into level, carry out hoisting operation then.
This leveling method utilizes the existing vertical leg oil cylinder of hoisting crane to carry out leveling, and not needing increases extra mechanism, fairly simple.But this method has requirement to the road surface of operation field, and the road surface of promptly placing the vertical leg cylinder pedestal needs smooth and ground has sufficient intensity; In addition, this method must be launched supporting leg just can carry out leveling and hoisting operation, in case the railway breakdown scene can't be launched four supporting legs on request, then can increase the difficulty of salvage work greatly.
Two, utilize the independently vertical direct leveling rotating platform of crane of oil cylinder in outside.An independently vertical oil cylinder is installed below turntable, and cylinder pedestal places on the ground on rail next door, adjusts turntable by the adjusting oil cylinder stroke and makes its level, carries out hoisting operation then.
Four leg mechanisms of this leveling method can launch equally and by its four vertical oil cylinder support frame, implement hoisting operation then, but the leveling operation then is to be realized by the independently vertical oil cylinder in an outside.This independently vertical oil cylinder can be under the effect of liquid electric control system, directly with the leveling turntable of hoisting crane, operate very straightforward, and simple steady, this independently vertical oil cylinder can be shared the load that the vertical oil cylinder of supporting leg need bear in addition, makes the whole stressed more reasonable and safety of hoisting crane.But the method need increase a suitable independent oil cylinder, it is installed in the rotating platform of crane below, and the road surface of placing cylinder pedestal also there is requirement, be smooth and ground has sufficient intensity, in case turntable will rotate in addition, then need to operate independent oil cylinder and make its withdrawal, and transfer horizontal positioned to, just can not have influence on the rotation of turntable or bump, operate loaded down with trivial details relatively with other things around it.
Summary of the invention
The purpose of this invention is to provide a kind of locomotive crane with outer rail superelevation levelling function, levelling gear with hoisting crane self, when hoisting crane is in railroad curve superelevation of outer rail operating mode field operation, can make the whole horizontality that keeps of vehicle frame, thereby guarantee specified lifting performance and the job security of hoisting crane, and field operation flexibly, conveniently, immediately, the operating efficiency height.
The objective of the invention is to be achieved through the following technical solutions:
The present invention has the locomotive crane of outer rail superelevation levelling function, comprise arm, turntable, vehicle frame, bogie truck, arc beam leveling equipment and liquid electric control system, characteristics are before locomotive crane, an arc beam leveling equipment is set respectively between upper back vehicle frame and the bottom bogie truck, this arc beam leveling equipment is by the arc beam, piston shoes, two boom oil cylinders and piston rod bearing are formed, the arc beam is made up of lower raft and top external cylindrical surface arc, top external cylindrical surface arc is two parallel arcs, about the external cylindrical surface of every arc, be combined with piston shoes, the piston shoes bottom is the inner cylinder face that matches with the external cylindrical surface of arc and slide, piston shoes top is vertical pivot, the cylinder barrel of two boom oil cylinders is set in parallel in the arc, two piston rod matches with corresponding two piston rod bearings that are installed in vehicle frame left and right sides web respectively, each vertically is provided with a minor axis two boom cylinder tubes both sides, this minor axis is installed in respectively in the closed pockets of arc, and arc beam leveling equipment is by the piston rod at two boom oil cylinder two ends of top arc, piston shoes top vertical pivot cooperates connection with the vehicle frame corresponding position; Lower raft at arc beam leveling equipment connects with bogie truck by connecting device, two arc beam leveling equipments is connected in respectively between the forward and backward upper frame and bottom bogie truck of hoisting crane.
The connecting device of above-mentioned arc beam lower raft and bogie truck is made up of ball pivot cartridge and elastic side bearing, and arc beam base plate center connects with the ball pivot of ball pivot cartridge, and free bearing then connects with bogie truck, and ball pivot can be made fine rotation along the free bearing Internal Spherical Surface; The upper end of four elastic side bearings respectively with four corner connections of arc beam base plate, the lower end is bearing in respectively on the last plane of bogie truck, and can be along planar slide on this bogie truck.
Hoisting crane of the present invention is provided with latching device between arc beam arc and vehicle frame, this latching device is made up of locking bar and latch arm hole, and latch arm hole is located at arc beam arc, and locking bar is installed in vehicle frame and the cooresponding position of latch arm hole, but level is flexible, enters in the latch arm hole.
Hoisting crane of the present invention is the parallel draw gear that is connected with between arc beam lower raft and vehicle frame, this draw gear is made up of connecting rod, bearing pin, ball pivot revolute pair, bearing pin then cooperates with interior ball pivot, can relatively rotate between the inside and outside ball pivot, connecting rod cooperates with outer ball pivot, the connecting rod two ends connect with arc beam leveling equipment arc beam base plate and vehicle frame respectively through outer ball pivot-Nei ball pivot-bearing pin, have guaranteed the integrated movability of arc beam leveling equipment and hoisting crane.
The present invention is before locomotive crane, an arc beam leveling equipment is set respectively between upper back vehicle frame and the bottom bogie truck, creatively make hoisting crane of the present invention have incorporate levelling function, this arc beam leveling equipment makes the two boom oil cylinders that are connected between the arc by the piston rod bearing promotion vehicle frame of its cooperation and above whole the moving of parts thereof by the liquid electric control system, the piston shoes that are connected on the vehicle frame are then made slide relative along the face of cylinder of the arc beam of its cooperation, reduce the inclined degree of the vehicle frame that arc beam top connected gradually, until adjusting to horizontality, simultaneously, because two boom oil cylinders can be done the rotation of certain angle around the minor axis of cylinder barrel both sides with respect to the arc beam, arc beam base plate also can be made fine rotation with respect to bogie truck, therefore, even arc beam and bogie truck that its underpart connects still are in heeling condition, but can make the vehicle frame of arc beam top and the above parts integral body of vehicle frame adjust to horizontality, realize leveling to the full extent.
The present invention is with incorporate scientific design, leveling equipment by hoisting crane self, vehicle frame and vehicle frame are adjusted to horizontality with upper-part integral body, solved the integral inclination problem of hoisting crane when the railroad curve operation, and overall profile is remained within the gauge scope, fundamentally guaranteed specified lifting performance and the job security of hoisting crane when the railroad curve operation.And hoisting crane field operation of the present invention flexibly, conveniently, immediately, the operating efficiency height.When hoisting crane of the present invention is in the operation of superelevation of outer rail situation, when particularly implementing to speedily carry out rescue work task, hoisting crane of the present invention can be opened latching device immediately once reaching the spot, start the levelling gear of hoisting crane of the present invention self, after adjusting the vehicle frame balance, just can implement the hoisting operation of speedily carrying out rescue work immediately, owing to need any other appliance arrangement of the interim installation in ground at the scene, field ground there is not additional requirement yet, so striven for valuable speedily carrying out rescue work the time, after finishing the operation of speedily carrying out rescue work, just can leave the scene behind the locking leveling equipment, implement other hoisting operations then.In addition, this hoisting crane is provided with draw gear between arc beam base plate and vehicle frame, so further guaranteed the integrated travelling performance of leveling equipment and hoisting crane.
Description of drawings
Fig. 1 locomotive crane front view of the present invention
Fig. 2 arc beam of the present invention leveling equipment front view
Fig. 3 arc beam of the present invention leveling equipment birds-eye view (not comprising piston shoes)
Operating condition scheme drawing after the leveling of Fig. 4 locomotive crane vehicle frame of the present invention
Draw gear right elevation between Fig. 5 arc beam of the present invention leveling equipment and the vehicle frame
The specific embodiment
How now further specify the present invention in conjunction with the accompanying drawings implements:
The arc beam 5 of the design's arc beam leveling equipment T is made up of lower raft 5-1 and top arc, top arc then two parallel arc 5-2 is formed, the external cylindrical surface of arc 5-2 up, above each piece arc, each side be combined with piston shoes 2, piston shoes 2 tops are vertical pivot, piston shoes 2 bottom inner cylinder faces cooperate with the external cylindrical surface of the arc 5-2 of arc beam 5, and can slide along it, two boom oil cylinders 4 are set in parallel between the two arc 5-2, the minor axis 4-1 of cylinder barrel both sides is contained in respectively among the arc respective slot 5-3, and the groove mouth is sealed with clamp and bolt, the axis direction of minor axis is vertical with the cylinder barrel axis direction, therefore, parallel cylinder barrel between two arc plates can not move, but can be around the minor axis rotational, piston shoes 2 top vertical pivots are connected with vehicle frame 1, and be fixed with clamp and bolt, the piston rod at cylinder barrel two ends respectively be packed in vehicle frame 1 left and right sides web two oil cylinder seats 3 cooperate, piston rod moves synchronously in the same way.
Between above-mentioned arc beam leveling equipment and vehicle frame, be provided with the latching device of forming by locking bar 9 and latch arm hole 5-4, latch arm hole 5-4 is located at arc beam arc, locking bar 9 is installed on the vehicle frame 1 and the cooresponding position of latch arm hole 5-4, and but level is flexible, locking bar 9 controlled level are overhanging, penetrating among the latch arm hole 5-4 can be with arc beam 5 relative fixed, thus the locking leveling equipment.
Connecting device between arc beam base plate 5-1 and the bogie truck 6 is made up of ball pivot cartridge 8 and elastic side bearing 7, and arc beam base plate 5-1 center connects with the ball pivot of ball pivot cartridge 8, and free bearing connects with bogie truck 6, and ball pivot can be made fine rotation along the free bearing Internal Spherical Surface; The upper end of four elastic side bearings 7 respectively with four corner connections of arc beam base plate 5-1, the lower end is bearing in respectively on the last plane of bogie truck 6, and can slightly slide.
Draw gear between arc beam base plate 5-1 and the vehicle frame 1 is by connecting rod 10, bearing pin 10-1, interior ball pivot 10-2 and outer ball pivot 10-3 revolute pair are formed, as shown in Figure 4, the two ends of connecting rod 10 cooperate with outer ball pivot 10-3, interior ball pivot 10-2 cooperates with bearing pin 10-1 middle part, interior ball pivot 10-2 and the outer ball pivot 10-3 rotation that cooperatively interacts, the two ends of connecting rod 10 are through outer ball pivot 10-3, interior ball pivot 10-2, bearing pin 10-1 connects with arc beam base plate 5-1 and vehicle frame 1 respectively, therefore, during leveling, arc beam base plate 5-1 and vehicle frame 1 can relatively rotate freely, can not hinder relatively rotating between vehicle frame 1 and the arc beam 5, during the hoisting crane loopback, arc beam leveling equipment can drive vehicle frame by this draw gear and move.
When hoisting crane is in heeling condition and needs leveling on bend, handling the liquid electric control system moves the piston rod of two boom oil cylinders 4, piston rod bearing 3 and vehicle frame 1 integral body that piston rod promptly promotes to be cooperated move, simultaneously two boom oil cylinders 4 can be done the rotation of certain angle around the minor axis 4-1 of cylinder barrel both sides with respect to the arc beam, thereby driving piston shoes 2 slides along arc beam 5, as shown in Figure 3, though arc beam 5 and bogie truck that its underpart connects 6 still are in heeling condition, the vehicle frame 1 that arc beam 5 tops are connected is adjusted to horizontality gradually.In this leveling process, arc beam 5 can be by the connecting device ball pivot cartridge 8 of its base plate center and bogie truck 6, make fine rotation, elastic side bearing 7 between four jiaos of arc beam 5 base plates and the bogie truck 6 plays the elastic support effect, and be connected in draw gear connecting rod 10 between arc beam base plate 5-1 and the vehicle frame 1, because its two ends cooperate the outer ball pivot 10-3 and the interior ball pivot 10-2 that connect to relatively rotate, therefore when leveling, can not hinder relatively rotating between vehicle frame 1 and the arc beam 5.
The design has the locomotive crane of outer rail superelevation levelling function, and it is as follows to implement operation:
1, during the hoisting crane loopback, at first locks levelling gear: handle the liquid electric control system locking bar 9 levels are stretched out, penetrate among the latch arm hole 5-4 of arc beam 5, leveling equipment can be locked relatively; Then, travel on railroad track by locomotive traction bogie truck 6,6 of bogie trucks drive arc beam 5 by described connecting device ball pivot cartridge 8 and elastic side bearing 7 and move, and arc beam 5 then drives vehicle frame 1 by described draw gear connecting rod 10 and moves, thereby hoisting crane integral body is moved ahead.
2, during operation, at first handle the liquid electric control system and make the withdrawal of locking bar 9 levels after bend is in heeling condition to need leveling when hoisting crane, remove locking, behind the latch-release, can start leveling equipment work levelling gear:
Handling the liquid electric control system moves the piston rod of two boom oil cylinders 4, piston rod promotes piston rod bearing 3 and vehicle frame 1 whole moving, simultaneously two boom oil cylinders 4 can be done the rotation of certain angle around the minor axis 4-1 of cylinder barrel both sides with respect to the arc beam, thereby vehicle frame 1 drives piston shoes 2 and slides along arc beam 5, in this leveling process, arc beam 5 is by the connecting device ball pivot cartridge 8 of its base plate center and bogie truck 6, also can make fine rotation, elastic side bearing between four jiaos of arc beam 5 base plates and the bogie truck 6 plays the elastic support effect.
After vehicle frame 1 integral body is adjusted to horizontality, handle the liquid electric control system again locking bar 9 levels are stretched out, penetrate among the latch arm hole 5-4 of arc beam, leveling equipment is locked relatively.After the leveling equipment locking, hoisting crane carries out hoisting operation again.
Claims (5)
1, a kind of locomotive crane with outer rail superelevation levelling function, comprise arm, turntable, vehicle frame, bogie truck, arc beam leveling equipment and liquid electric control system, it is characterized in that before locomotive crane, between upper back vehicle frame (1) and the bottom bogie truck (6) an arc beam leveling equipment (T) is set respectively, this arc beam leveling equipment (T) is by arc beam (5), piston shoes (2), two boom oil cylinders (4) and piston rod bearing (3) are formed, arc beam (5) is made up of lower raft (5-1) and top external cylindrical surface arc (5-2), be combined with piston shoes (2) in external cylindrical surface arc (5-2) left-right symmetric, piston shoes (2) bottom is the inner cylinder face that matches with the external cylindrical surface of arc and slide, and piston shoes top is vertical pivot; The cylinder barrel of two boom oil cylinders (4) is set in parallel in the arc, and the cylinder barrel both sides respectively are equipped with a vertical short axis (4-1) and are passed arc groove (5-3), is installed in vehicle frame (1) left and right sides web respectively with two cooresponding piston rod bearings of piston rod (3); Arc plate-girder leveling equipment connects with upper frame (1) corresponding matching by the piston rod and piston shoes (2) the top vertical pivot at two boom oil cylinder (4) two ends of top arc (5-2), connecting device by lower raft (5-1) connects with bogie truck (6), and two arc beam leveling equipments are connected in respectively between forward and backward upper frame of hoisting crane (1) and the bottom bogie truck (6).
2, a kind of locomotive crane with outer rail superelevation levelling function according to claim 1 is characterized in that top external cylindrical surface arc (5-2) is made up of two external cylindrical surface arcs that be arranged in parallel.
3, a kind of locomotive crane according to claim 1 with outer rail superelevation levelling function, it is characterized in that between arc (5-2) and vehicle frame (1), latching device being arranged, this latching device is made up of locking bar (9) and latch arm hole (5-4), latch arm hole (5-4) is located at arc beam arc (5-2), locking bar (9) is installed in vehicle frame (1) correspondence position, but level stretches in the latch arm hole (5-4).
4, a kind of locomotive crane according to claim 1 with outer rail superelevation levelling function, it is characterized in that between lower raft (5-1) and vehicle frame (1), draw gear being arranged, this draw gear is made up of connecting rod (10), bearing pin (10-1), interior ball pivot (10-2) and outer ball pivot (10-3) revolute pair, and the two ends of connecting rod (10) connect with lower raft (5-1) and vehicle frame (1) respectively through outer ball pivot (10-3), interior ball pivot (10-2), bearing pin (10-1).
5, a kind of locomotive crane according to claim 1 with outer rail superelevation levelling function, it is characterized in that the connecting device between lower raft (5-1) and bogie truck (6) is made up of ball pivot cartridge (8) and four elastic side bearings (7), the ball pivot of ball pivot cartridge (8) connects with arc beam base plate (5-1) center, free bearing connects with bogie truck (6), the upper end of four elastic side bearings (7) respectively with four corner connections of arc beam base plate (5-1), the lower end is bearing in respectively on the last plane of bogie truck (6).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910060838 CN101531329B (en) | 2009-02-23 | 2009-02-23 | Railway crane with outer rail superelevation levelling function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910060838 CN101531329B (en) | 2009-02-23 | 2009-02-23 | Railway crane with outer rail superelevation levelling function |
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| CN101531329A true CN101531329A (en) | 2009-09-16 |
| CN101531329B CN101531329B (en) | 2010-11-10 |
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| CN106926360A (en) * | 2016-12-27 | 2017-07-07 | 山西高行液压股份有限公司 | A kind of Multi-position bolt mechanism |
| CN109573865A (en) * | 2017-09-29 | 2019-04-05 | 中国铁路总公司 | A kind of locomotive crane and its auxiliary support apparatus |
| CN109573841A (en) * | 2017-09-29 | 2019-04-05 | 中车齐齐哈尔车辆有限公司 | A kind of curve levelling control system and its curve leveling hydraulic system for locomotive crane |
| CN111002480A (en) * | 2019-10-28 | 2020-04-14 | 中建深业建设发展有限公司 | An automatic drilling device for positioning concrete wall for construction engineering |
| CN112623970A (en) * | 2020-11-10 | 2021-04-09 | 宜昌市洋坤建筑有限公司 | Hoisting type operation supporting equipment for house construction |
| CN112723157A (en) * | 2021-01-18 | 2021-04-30 | 武桥工业装备有限责任公司 | Variable-pitch span double-railway-line support pad device for railway crane and use method |
| CN113310710A (en) * | 2021-05-12 | 2021-08-27 | 中车太原机车车辆有限公司 | Detachable limit door for railway wagon |
| CN114136421A (en) * | 2021-11-29 | 2022-03-04 | 昆山安特计量设备有限公司 | Electronic weighing apparatus weighing device |
| CN114933254A (en) * | 2022-06-16 | 2022-08-23 | 江苏中矿重型装备有限公司 | A lower support device for a roller scrap steel heavy plate conveyor |
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- 2009-02-23 CN CN 200910060838 patent/CN101531329B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106926360B (en) * | 2016-12-27 | 2024-02-23 | 山西高行液压股份有限公司 | A multi-position latch mechanism |
| CN106926360A (en) * | 2016-12-27 | 2017-07-07 | 山西高行液压股份有限公司 | A kind of Multi-position bolt mechanism |
| CN109573865A (en) * | 2017-09-29 | 2019-04-05 | 中国铁路总公司 | A kind of locomotive crane and its auxiliary support apparatus |
| CN109573841A (en) * | 2017-09-29 | 2019-04-05 | 中车齐齐哈尔车辆有限公司 | A kind of curve levelling control system and its curve leveling hydraulic system for locomotive crane |
| CN109573841B (en) * | 2017-09-29 | 2020-09-01 | 中车齐齐哈尔车辆有限公司 | Curve leveling control system for railway crane and curve leveling hydraulic system thereof |
| CN109573865B (en) * | 2017-09-29 | 2024-06-07 | 中国铁路总公司 | Railway crane and auxiliary supporting device thereof |
| CN111002480A (en) * | 2019-10-28 | 2020-04-14 | 中建深业建设发展有限公司 | An automatic drilling device for positioning concrete wall for construction engineering |
| CN112623970A (en) * | 2020-11-10 | 2021-04-09 | 宜昌市洋坤建筑有限公司 | Hoisting type operation supporting equipment for house construction |
| CN112623970B (en) * | 2020-11-10 | 2022-07-05 | 宜昌市洋坤建筑有限公司 | Hoisting type operation supporting equipment for house construction |
| CN112723157A (en) * | 2021-01-18 | 2021-04-30 | 武桥工业装备有限责任公司 | Variable-pitch span double-railway-line support pad device for railway crane and use method |
| CN113310710A (en) * | 2021-05-12 | 2021-08-27 | 中车太原机车车辆有限公司 | Detachable limit door for railway wagon |
| CN113310710B (en) * | 2021-05-12 | 2023-05-02 | 中车太原机车车辆有限公司 | Detachable limiting door for railway freight car |
| CN114136421A (en) * | 2021-11-29 | 2022-03-04 | 昆山安特计量设备有限公司 | Electronic weighing apparatus weighing device |
| CN114136421B (en) * | 2021-11-29 | 2024-04-12 | 昆山安特计量设备有限公司 | Electronic weighing apparatus weighing device |
| CN114933254B (en) * | 2022-06-16 | 2023-10-13 | 江苏中矿重型装备有限公司 | Lower supporting device for supporting wheel scrap steel heavy plate conveyor |
| CN114933254A (en) * | 2022-06-16 | 2022-08-23 | 江苏中矿重型装备有限公司 | A lower support device for a roller scrap steel heavy plate conveyor |
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|---|---|
| CN101531329B (en) | 2010-11-10 |
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Effective date of registration: 20200930 Address after: 430056 office building, No.777, Zhuankou Road, Wuhan Economic and Technological Development Zone, Wuhan City, Hubei Province Patentee after: Wuqiao Industrial Equipment Co., Ltd Address before: 430056 No. 777, Zhuankou Road, Wuhan economic and Technological Development Zone, Wuhan, Hubei Patentee before: WUHAN BRIDGE HEAVY INDUSTRIES GROUP Co.,Ltd. |