CN103790114A - Hydraulic dragging and idler wheel walking combination cable carrying crane and walking method thereof - Google Patents
Hydraulic dragging and idler wheel walking combination cable carrying crane and walking method thereof Download PDFInfo
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- CN103790114A CN103790114A CN201410042830.0A CN201410042830A CN103790114A CN 103790114 A CN103790114 A CN 103790114A CN 201410042830 A CN201410042830 A CN 201410042830A CN 103790114 A CN103790114 A CN 103790114A
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Abstract
A hydraulic dragging and idler wheel walking combination cable carrying crane comprises a walking mechanism, a steel truss, a steel strand storing-releasing device, a diesel hydraulic pump station, a control system, a lifting jack, a hanging cage and a hanging tool. The walking mechanism is arranged at the two ends of the steel truss. The steel strand storing-releasing device, the diesel hydraulic pump station, the control system, the lifting jack and the hanging cage are arranged in the steel truss. The hanging tool is connected with the lifting jack through the steel strand. A body of the walking mechanism is a mounting frame which is symmetrical on all sides and is made of steel plates. A load converting device is arranged on the body of the walking mechanism in a evenly-distributing mode. An idler wheel of the walking mechanism is in sliding contact with a main cable. A dragging frame is fixedly arranged at either end of the body of the walking mechanism. A dragging jack and a dragging fixing device are connected with the body of the walking mechanism through the dragging frame. An embracing foot is arranged at the bottom of the body of the walking mechanism. An embracing hoop is arranged on the embracing foot. The cable carrying crane walks in the mode that hydraulic dragging and idler wheel walking are combined, walking speed is high, and whole machine disassembling and assembling are convenient and quick.
Description
Technical field
The present invention relates to a kind of bridge construction machinery, particularly a kind of large-scale suspension bridge bridge support equipment-deck unit erection gantry.
Background technology
Deck unit erection gantry is indispensable equipment in large-scale suspension bridge bridge erection construction, and current deck unit erection gantry comprises two kinds of hoist type deck unit erection gantry and full hydraulic deck unit erection gantries, and they differ from one another, but also have following weak point:
One, the weak point of existing hoist type deck unit erection gantry is:
1. what hoist type deck unit erection gantry adopted is the mode of hoist engine traction walking, this mode just must be installed hoist engine on bridge tower, because hoist engine is very long to deck unit erection gantry place wire rope, also will be on main rope of suspension bridge install and when guiding support roller guarantee to draw, do not have unbalance loading at interval of a segment distance, construction be complicated, be awkward;
2. hoist type deck unit erection gantry be if to traction walking in the other direction, will use hoist engine and the guiding support roller of opposite bridge tower, but in the time of the operation simultaneously of two deck unit erection gantries, this is to be difficult to realize, and is so just difficult to realize two-shipper pair and hangs.
For overcoming the shortcoming of existing hoist type deck unit erection gantry, the applicant had once successively applied for that the patent No. was in 2009: 200910113848.4, denomination of invention is " dual-machine loading-and-walking type hydraulic numerical control deck erection gantry and control system and control method ", the patent No. is: 200910113846.5 denominations of invention are " application two-shipper is two hang hydraulic numerical control set up girder of suspension bridge across cable loop wheel machine method " two patents of invention, successfully realizing two-shipper pair hangs, but through practice, find, existing full hydraulic deck unit erection gantry yet has the following disadvantages:
1. the speed of travel is slow: what existing full hydraulic deck unit erection gantry adopted is hydraulic haulage jack, load transfer jack and the action of guide rail translation jack substep, thereby realizes the function of deck unit erection gantry walking on main rope of suspension bridge; Because there are three kinds of hydraulic cylinders in the executing agency that participates in walking, and be to cross over cord clip or three kinds of hydraulic cylinders of walking of not crossing over cord clip all will carry out do action, so the speed of travel of whole deck unit erection gantry is slow, the average speed of travel only has 12m/h;
2. can only unidirectional traction walk: existing full hydraulic deck unit erection gantry, in the time installing on main rope of suspension bridge, can only be walked in unidirectional traction, if to traction walking in the other direction, that whole deck unit erection gantry will do installation again;
3. the pin installation site of embracing of embracing pin and walking guide rail of existing full hydraulic deck unit erection gantry walking mechanism main body is all fixed, if whole main rope of suspension bridge cord clip arrangement diagram and actual when having error or interim cord clip being installed, just likely produce and interfere, the pin of embracing that is deck unit erection gantry has ridden on cord clip, at this moment can only dismantle interim cord clip or move permanent cord clip, this is the thing bothering very much;
4. the scotch of anti-phorogenesis also to be installed: when existing full hydraulic and the lifting of hoist type deck unit erection gantry while lifting, scotch all to be installed and play the effect that antiskid moves, will prepare the scotch of all lengths specification in order to adapt to different hoisting point positions;
5. between the each sections of the steel truss of existing full hydraulic deck unit erection gantry, be to adopt high-strength bolt friction pair to connect, this connection time is long, needs special instrument torque wrench;
6. existing full hydraulic deck unit erection gantry adopts the hydraulic power unit that common electric machine drives, and also will be equipped with like this diesel-driven generator on deck unit erection gantry, so not only takes up space but also consumes energy;
7. the hydraulic lifting jack of existing full hydraulic deck unit erection gantry is fixedly connected with steel truss with bolt, to rotate a very large angle with swinging whole steel truss while moving method hanging beam, general 15～20 degree left and right, so the operating personnel on loop wheel machine feel uncomfortable, swing hydraulic power unit while moving and also will hang installation.
Summary of the invention
The object of this invention is to provide the novel deck unit erection gantry of a kind of efficient and adaptable large-scale suspension bridge bridge support equipment-hydraulic haulage and roller walking combination, this deck unit erection gantry can be walked faster, embracing pin can move when adapting to different cord clip spacing or to have the situation of interim cord clip, can take on friction skidding device by embracing pin in the middle of mobile, thereby need not design in addition again use scotch, Heave Here or two-shipper pair that can be special in the time that thereby any position of main rope of suspension bridge bivector traction walking realization is set a roof beam in place hang, hanging beam swing while moving, operate comfortable, complete machine is convenient to disassembly, energy-saving and cost-reducing
,solve preferably existing loop wheel machine above shortcomings part.
For addressing the above problem, the technical solution used in the present invention is: the deck unit erection gantry of a kind of hydraulic haulage and roller walking combination, comprises walking mechanism, steel truss, steel strand draw off gear, diesel engine hydraulic pumping plant, control system, lifting jack and cage and suspender; Walking mechanism is arranged on steel truss two ends, and steel strand draw off gear, diesel engine hydraulic pumping plant, control system, lifting jack and cage are installed in steel truss, and suspender is connected with lifting jack by steel strand;
Described walking mechanism is made up of 4 load transfer devices, armful pin, walking mechanism main body, anchor ear, hitch frame, traction jack and traction fixing device;
Described load transfer device comprises load transfer jack, support, walking roller and bearing pin; Described support is a H shape, load transfer jack is arranged on a side of H shape support, walking roller is arranged on the opposite side of H shape support by bearing pin, in the time that load transfer jack is stretched cylinder or contracting cylinder, promote walking roller position and vertically move along the direction vertical with main push-towing rope;
Described traction jack is made up of main top, upper clamper and lower gripper;
The main body of described walking mechanism is an installing rack for symmetry all around of being made up of steel plate, and 4 load transfer devices are arranged in walking mechanism main body with equal mode for cloth, its roller and main push-towing rope sliding-contact;
Hitch frame is fixedly mounted on any one end of walking mechanism main body, and traction jack is connected with walking mechanism main body by hitch frame with traction fixing device; 3 armfuls of pin are arranged on the bottom of walking mechanism main body, and anchor ear is arranged on to be embraced on pin.
The further technical scheme of the deck unit erection gantry of described hydraulic haulage and roller walking combination is: hydraulic winch is installed in walking mechanism, the installation site of this hydraulic winch from the different ends that hitch frame, traction jack and traction fixing device are installed in walking mechanism.
The further technical scheme of the deck unit erection gantry of described hydraulic haulage and roller walking combination is: embrace pin and be movably arranged in walking mechanism main body for 3 of walking mechanism, on the base plate of walking mechanism main body, have equidistant connecting bolt hole, these bolts hole are along the elongated distribution of base plate, embracing on pin has chute on walking mechanism body base plate, to slide, when sliding into the position needing, fixes by bolt and main body again on armful pin, the middle armful removable installation of pin, directly withstands cord clip as stop friction skidding device.
The further technical scheme again of the deck unit erection gantry of described hydraulic haulage and roller walking combination is: the steel truss of deck unit erection gantry is to be made up of the assembling of steel truss modular segment, described steel truss modular segment comprises lifting sections, end bay sections, in across sections I, in across sections II, between each steel truss modular segment, connect with latch.
Described diesel engine hydraulic pumping plant comprises fuel tank, diesel engine and pump head.
Lifting jack is arranged on cage, and cage is connected with latch with steel truss.
Another relevant technical scheme is: the traveling method of the deck unit erection gantry of above-mentioned hydraulic haulage and roller walking combination, it is characterized in that: the walking of this deck unit erection gantry adopts the mode of hydraulic haulage and roller walking combination, and the walking of deck unit erection gantry divides descending walking and up walking; So-called descending walking is exactly that deck unit erection gantry moves to the low spot of main push-towing rope from the height point of main push-towing rope, and so-called up walking is exactly that deck unit erection gantry is mobile to the height point of main push-towing rope from the low spot of main push-towing rope;
The process of the descending walking of deck unit erection gantry is:
Traction fixing device withstands cord clip as counter-force point, and hitch frame is as force transmission element, and hydraulic haulage jack provides resistance, in the time that deck unit erection gantry will be walked, the very heavy jacking cylinder of load transfer of load transfer device, 4 walking rollers all contact with main push-towing rope, whole deck unit erection gantry is by jack-up, on traction jack, clamper unclamps, lower gripper clamps steel strand, traction jacking cylinder is to stroke, then going up clamp holder clamping lower gripper unclamps, due to the effect of deck unit erection gantry sliding force, deck unit erection gantry relies on walking roller to walk downwards, the oil pressure of now controlling traction top provides certain resistance to guarantee that deck unit erection gantry at the uniform velocity glides, after completing a reduction cylinder stroke, repeat again step above, deck unit erection gantry is constantly walking downwards just.In the time that the 1st roller runs into cord clip, load transfer synthlipsis cylinder, roller is lifted and taken in walking mechanism main body, cross after cord clip, the 1st roller contacted with main push-towing rope and continued the walking of rolling by load transfer jacking cylinder again, other roller is also to cross over like this cord clip, can guarantee to have in the both sides of whole deck unit erection gantry center of gravity 1 roller to contact with main push-towing rope in whole walking process, and assurance deck unit erection gantry can not be tumbled; When deck unit erection gantry goes downwards to the main push-towing rope ratio of slope when milder, because sliding force is not enough to overcome friction, the descending walking of deck unit erection gantry can stop, and at this moment a hydraulic winch will be installed downward tractive force is provided, and loop wheel machine just can go downwards to the extreme lower position of main push-towing rope.
The process of the up walking of deck unit erection gantry is:
Traction fixing device withstands cord clip as counter-force point, and hitch frame is as force transmission element, and hydraulic haulage jack provides tractive force.In the time that deck unit erection gantry will be walked, the very heavy jacking cylinder of the load transfer of load transfer device, 4 walking rollers all contact with main push-towing rope, and whole deck unit erection gantry is by jack-up, and traction jack lower gripper unclamps, upper clamp holder clamping steel strand, traction jacking cylinder promotes whole
Individual deck unit erection gantry also relies on the walking roller walking that scrolls up, in the time that the 1st roller runs into cord clip, load transfer synthlipsis cylinder, roller is lifted and taken in walking main body, crossed after cord clip, the 1st roller contacted with main push-towing rope and continued the walking of rolling by load transfer jacking cylinder again, and other roller is also to cross over like this cord clip, in whole walking process, can guarantee to have in the both sides of whole deck unit erection gantry center of gravity 1 roller to contact with main push-towing rope, and assurance deck unit erection gantry can not be tumbled.
The further technical scheme of the traveling method of the deck unit erection gantry of described hydraulic haulage and roller walking combination is: the main body of the walking mechanism of the deck unit erection gantry of described hydraulic haulage and roller walking combination is symmetrical, hitch frame and traction top are pulled down to the another side that refills walking main body, traction fixing device is also pulled down and is installed to another side, just can realize the bivector traction walking of deck unit erection gantry.
Owing to taking above technical scheme, deck unit erection gantry and the traveling method thereof of the present invention's hydraulic haulage and roller walking combination have following characteristics and beneficial effect:
1, the beneficial effect that the deck unit erection gantry of the present invention's hydraulic haulage and roller walking combination adopts the mode of hydraulic haulage and roller walking combination to bring is:
1. the speed of travel is fast, also energy bivector traction is walked; Shorten like this duration that suspension bridge is set a roof beam in place;
2. owing to adopting the mode of hydraulic haulage, more flexible than hoist engine mode of traction, can change arbitrarily traction anchor point, as long as what walking body design one-tenth was symmetrical just can realize bivector traction, deck unit erection gantry just can start lifting in arbitrfary point on main rope of suspension bridge like this, and can realize in arbitrfary point two-shipper pair and hang.
3. when gentle slope is descending, being furnished with hydraulic winch provides the tractive force of downward walking, little more lightweight than motor-driven hoist engine volume, need not consider distribution problem.
2, the removable mode of pin of embracing of deck unit erection gantry walking mechanism of the present invention is installed, and is convenient to position adjustments, and the middle pin of embracing can do friction skidding device; Existing full hydraulic loop wheel machine or the walking of hoist type loop wheel machine are embraced pin and are all fixed, and three of this loop wheel machine embrace pin and can move to install and prevent that loop wheel machine from having unexpected interference in the process of walking, the middle pin of embracing can do friction skidding device use, thereby can save scotch in hanging beam process.
3, steel truss is divided into modular segment by deck unit erection gantry steel truss of the present invention, assembles formation by connecting mode of inserted pin; The high-strength bolt friction pair of comparing existing full hydraulic connects easier dismounting, and latch can Reusability, and high-strength bolt can not Reusability.
4, adopt diesel engine pumping plant as power, compare the diesel-driven generator and the mode that the pumping plant of common electric machine driving combines of existing full hydraulic, take up room little, energy-conservation.
5, lifting jack and cage are installed, and are convenient to swing move construction: swing while moving when having, steel truss does not need to rotate, only need cage to rotate, steel truss is vertical all the time like this, thereby has guaranteed the traffic safety and riding comfort of operating personnel and equipment on steel truss, has also improved the force status of equipment simultaneously.
Below, deck unit erection gantry and the walking side thereof of the hydraulic haulage to the present invention and roller walking combination in conjunction with the accompanying drawings and embodiments
methodtechnical characterictic be further described.
Accompanying drawing explanation
Fig. 1-1～Fig. 1-2 is the overall structure schematic diagram of the present invention's hydraulic haulage and the deck unit erection gantry (being called for short deck unit erection gantry in the following drawings explanation) of roller walking combination:
Fig. 1-1: front view, Fig. 1-2: lateral view;
Fig. 2-1～Fig. 2-7th, the walking mechanism structure of deck unit erection gantry and critical piece structural representation thereof:
Fig. 2-1: walking mechanism structural representation;
Fig. 2-2: the load transfer apparatus structure schematic diagram of walking mechanism;
Fig. 2-3: walking mechanism part (embracing leg structure and installment state) structural representation;
Fig. 2-4: deck unit erection gantry utilization is embraced pin and carried out stop antiskid view;
Fig. 2-5～Fig. 2-6: walking mechanism agent structure schematic diagram;
Fig. 2-5: front view, Fig. 2-6: top view;
Fig. 2-7: traction jack structure schematic diagram;
Fig. 3-1～Fig. 3-2nd, the steel truss structure schematic diagram of deck unit erection gantry:
Fig. 3-1: integral installation state,
Fig. 3-2: steel truss exploded view;
Fig. 4 is diesel engine pumping plant schematic diagram;
Fig. 5-1～Fig. 5-2nd, the lifting jack of deck unit erection gantry and cage installation site schematic diagram:
Fig. 5-1: front view, Fig. 5-2: stereogram;
Fig. 6 is hydraulic winch (winch) schematic diagram;
Fig. 7-1～Fig. 7-4th, the traveling method principle schematic of the walking mechanism of deck unit erection gantry:
Fig. 7-1～Fig. 7-2: up walking schematic diagram;
Fig. 7-3～Fig. 7-4: descending walking schematic diagram.
In figure:
I-walking mechanism, II-steel truss, III-steel strand draw off gear, IV-diesel engine hydraulic pumping plant, V-control system, VI-lifting jack and cage, VII-hydraulic winch, VIII-suspender;
1-load transfer device, 2-embraces pin, 3-walking mechanism main body, 4-anchor ear, 5-hitch frame, 6-steel strand, 7-draws jack, 8-traction fixing device;
11-load transfer jack, 12-support, 13-walking roller, 14-bearing pin;
21-promotes sections, 22-end bay sections, in 23-across sections I, in 24-across sections II;
41-fuel tank, 42-pump head, 43-diesel engine;
II-steel truss, 61-lifting jack, 62-cage, 63-bearing pin connects;
The upper clamper of 71-, the main top of 72-, 73-lower gripper.
the specific embodiment
Embodiment mono-:
The deck unit erection gantry of a kind of hydraulic haulage and roller walking combination, as shown in Fig. 1-1～Fig. 1-2, the deck unit erection gantry of this hydraulic haulage and roller walking combination comprises walking mechanism I, steel truss II, steel strand draw off gear III, diesel engine hydraulic pumping plant IV, control system V, lifting jack and cage VI and suspender VIII; Walking mechanism I is arranged on steel truss II two ends, and steel strand draw off gear III, diesel engine hydraulic pumping plant IV, control system V, lifting jack and cage VI are installed in steel truss II, suspender VIII is connected with lifting jack by steel strand;
As shown in Fig. 2-1, described walking mechanism is made up of 4 load transfer devices 1, armful pin 2, walking mechanism main body 3, anchor ear 4, hitch frame 5, traction jack 7 and traction fixing device 8;
Described load transfer device 1 comprises load transfer jack 11, support 12, walking roller 13 and bearing pin 14; Described support 12 is a H shape, load transfer jack 11 is arranged on a side of H shape support 12, walking roller 13 is arranged on the opposite side of H shape support 12 by bearing pin 14, in the time that load transfer jack 11 is stretched cylinder or contracting cylinder, promote walking roller 13 positions and vertically move (referring to Fig. 2-2) along the direction vertical with main push-towing rope;
Described traction jack 7 forms (referring to Fig. 2-7) by main top 72, upper clamper 71 and lower gripper 72;
The main body of described walking mechanism is an installing rack (referring to Fig. 2-5, Fig. 2-6) for symmetry all around of being made up of steel plate, and 4 load transfer devices 1 are arranged in walking mechanism main body 3 with equal mode for cloth, its roller and main push-towing rope sliding-contact; Hitch frame 5 is fixedly mounted on any one end of walking mechanism main body 3, and traction jack 7 is connected with walking mechanism main body 3 by hitch frame 5 with traction fixing device 8; 3 armfuls of pin 2 are arranged on the bottom of walking mechanism main body, and anchor ear 4 is arranged on to be embraced on pin 2.
Hydraulic winch VII is installed in walking mechanism, the installation site of this hydraulic winch VII from the different ends (referring to Fig. 7-1, Fig. 7-2) that hitch frame 5, traction jack 7 and traction fixing device 8 are installed in walking mechanism.
The steel truss of this deck unit erection gantry is to be made up of the assembling of steel truss modular segment, described steel truss modular segment comprise promote sections 21, end bay sections 22, in across sections I 23, in across sections II 24, between each steel truss modular segment with latch connect (referring to Fig. 3-1, Fig. 3-2).
Described diesel engine hydraulic pumping plant IV comprises that fuel tank 41, diesel engine 43 and pump head 42(are referring to Fig. 4).
Lifting jack is arranged on cage, and cage is connected (referring to Fig. 5-1, Fig. 5-2) with steel truss with latch.
Embodiment bis-:
The traveling method of the deck unit erection gantry of hydraulic haulage and roller walking combination, the walking of this deck unit erection gantry adopts the mode of hydraulic haulage and roller walking combination, and the walking of deck unit erection gantry divides descending walking and up walking; So-called descending walking is exactly that deck unit erection gantry moves to the low spot of main push-towing rope from the height point of main push-towing rope, and so-called up walking is exactly that deck unit erection gantry is mobile to the height point of main push-towing rope from the low spot of main push-towing rope;
The process of the descending walking of deck unit erection gantry is (referring to Fig. 7-1, Fig. 7-2):
Traction fixing device withstands cord clip as counter-force point, and hitch frame is as force transmission element, and hydraulic haulage jack provides resistance, in the time that deck unit erection gantry will be walked, the very heavy jacking cylinder of load transfer of load transfer device, 4 walking rollers all contact with main push-towing rope, whole deck unit erection gantry is by jack-up, on traction jack, clamper unclamps, lower gripper clamps steel strand, traction jacking cylinder is to stroke, then going up clamp holder clamping lower gripper unclamps, due to the effect of deck unit erection gantry sliding force, deck unit erection gantry relies on walking roller to walk downwards, the oil pressure of now controlling traction top provides certain resistance to guarantee that deck unit erection gantry at the uniform velocity glides, after completing a reduction cylinder stroke, repeat again step above, deck unit erection gantry is constantly walking downwards just.In the time that the 1st roller runs into cord clip, load transfer synthlipsis cylinder, roller is lifted and taken in walking mechanism main body, cross after cord clip, the 1st roller contacted with main push-towing rope and continued the walking of rolling by load transfer jacking cylinder again, other roller is also to cross over like this cord clip, can guarantee to have in the both sides of whole deck unit erection gantry center of gravity 1 roller to contact with main push-towing rope in whole walking process, and assurance deck unit erection gantry can not be tumbled; When deck unit erection gantry goes downwards to the main push-towing rope ratio of slope when milder, because sliding force is not enough to overcome friction, the descending walking of deck unit erection gantry can stop, a hydraulic winch (referring to Fig. 6, Fig. 7-1, Fig. 7-2) at this moment will be installed downward tractive force is provided, loop wheel machine just can go downwards to the extreme lower position of main push-towing rope.
The process of the up walking of deck unit erection gantry is (referring to Fig. 7-3, Fig. 7-4):
Traction fixing device withstands cord clip as counter-force point, and hitch frame is as force transmission element, and hydraulic haulage jack provides tractive force.In the time that deck unit erection gantry will be walked, the very heavy jacking cylinder of the load transfer of load transfer device, 4 walking rollers all contact with main push-towing rope, and whole deck unit erection gantry is by jack-up, and traction jack lower gripper unclamps, upper clamp holder clamping steel strand, traction jacking cylinder promotes whole
Individual deck unit erection gantry also relies on the walking roller walking that scrolls up, in the time that the 1st roller runs into cord clip, load transfer synthlipsis cylinder, roller is lifted and taken in walking main body, crossed after cord clip, the 1st roller contacted with main push-towing rope and continued the walking of rolling by load transfer jacking cylinder again, and other roller is also to cross over like this cord clip, in whole walking process, can guarantee to have in the both sides of whole deck unit erection gantry center of gravity 1 roller to contact with main push-towing rope, and assurance deck unit erection gantry can not be tumbled.
Because the main body of the walking mechanism of the deck unit erection gantry of the present invention's hydraulic haulage and roller walking combination is symmetrical (referring to Fig. 2-5, Fig. 2-6), hitch frame and traction top are pulled down to the another side that refills walking main body, traction fixing device is also pulled down and is installed to another side, just can realize the bivector traction walking of deck unit erection gantry.
Claims (8)
1. the deck unit erection gantry of a hydraulic haulage and roller walking combination, it is characterized in that: the deck unit erection gantry of this hydraulic haulage and roller walking combination comprises walking mechanism (I), steel truss (II), steel strand draw off gear (III), diesel engine hydraulic pumping plant (IV), control system (V), lifting jack and cage (VI) and suspender (VIII); Walking mechanism (I) is arranged on steel truss (II) two ends, steel strand draw off gear (III), diesel engine hydraulic pumping plant (IV), control system (V), lifting jack and cage (VI) are installed in steel truss (II), and suspender (VIII) is connected with lifting jack by steel strand;
Described walking mechanism is made up of 4 load transfer devices (1), armful pin (2), walking mechanism main body (3), anchor ear (4), hitch frame (5), traction jack (7) and traction fixing device (8);
Described load transfer device (1) comprises load transfer jack (11), support (12), walking roller (13) and bearing pin (14); Described support (12) is a H shape, load transfer jack (11) is arranged on a side of H shape support (12), walking roller (13) is arranged on the opposite side of H shape support (12) by bearing pin (14), in the time that load transfer jack (11) is stretched cylinder or contracting cylinder, promote walking roller (13) position and vertically move along the direction vertical with main push-towing rope;
Described traction jack (7) is made up of main top (72), upper clamper (71) and lower gripper (72);
The main body of described walking mechanism is an installing rack for symmetry all around of being made up of steel plate, and it is upper that 4 load transfer devices (1) are arranged on walking mechanism main body (3) with equal mode for cloth, its roller and main push-towing rope sliding-contact;
Hitch frame (5) is fixedly mounted on any one end of walking mechanism main body (3), and traction jack (7) is connected with walking mechanism main body (3) by hitch frame (5) with traction fixing device (8);
3 armfuls of pin (2) are arranged on the bottom of walking mechanism main body, and anchor ear (4) is arranged on to be embraced on pin (2).
2. the deck unit erection gantry of hydraulic haulage according to claim 1 and roller walking combination, it is characterized in that: hydraulic winch (VII) is installed in walking mechanism, the installation site of this hydraulic winch (VII) from hitch frame (5), traction jack (7) and the different ends of traction fixing device (8) are installed in walking mechanism.
3. the deck unit erection gantry of hydraulic haulage according to claim 1 and roller walking combination, it is characterized in that: embrace pin (2) and be movably arranged in walking mechanism main body for 3 of walking mechanism, on the base plate (31) of walking mechanism main body, have equidistant connecting bolt hole (311), these bolts hole (311) are along the elongated distribution of base plate (31), embracing on pin (2) has chute (21) above to slide at walking mechanism body base plate (31), when sliding into the position needing, fixes by bolt and main body again on armful pin, the middle armful removable installation of pin, directly withstand cord clip as stop friction skidding device.
4. according to the deck unit erection gantry of the hydraulic haulage described in claim 1,2 or 3 and roller walking combination, it is characterized in that: the steel truss of this deck unit erection gantry is to be made up of the assembling of steel truss modular segment, described steel truss modular segment comprises lifting sections (21), end bay sections (22), in across sections I (23), in across sections II (24), between each steel truss modular segment, connect with latch.
5. according to the deck unit erection gantry of the hydraulic haulage described in claim 1,2 or 3 and roller walking combination, it is characterized in that: described diesel engine hydraulic pumping plant (IV) comprises fuel tank (41), diesel engine (43) and pump head (42).
6. according to the deck unit erection gantry of the hydraulic haulage described in claim 1,2 or 3 and roller walking combination, it is characterized in that: lifting jack is arranged on cage, cage is connected with latch with steel truss.
7. the traveling method of the deck unit erection gantry of hydraulic haulage and roller walking combination described in claim 1, is characterized in that: the walking of this deck unit erection gantry adopts the mode of hydraulic haulage and roller walking combination, and the walking of deck unit erection gantry divides descending walking and up walking; So-called descending walking is exactly that deck unit erection gantry moves to the low spot of main push-towing rope from the height point of main push-towing rope, and so-called up walking is exactly that deck unit erection gantry is mobile to the height point of main push-towing rope from the low spot of main push-towing rope;
The process of the descending walking of deck unit erection gantry is:
Traction fixing device withstands cord clip as counter-force point, and hitch frame is as force transmission element, and hydraulic haulage jack provides resistance, in the time that deck unit erection gantry will be walked, the very heavy jacking cylinder of load transfer of load transfer device, 4 walking rollers all contact with main push-towing rope, whole deck unit erection gantry is by jack-up, on traction jack, clamper unclamps, lower gripper clamps steel strand, traction jacking cylinder is to stroke, then going up clamp holder clamping lower gripper unclamps, due to the effect of deck unit erection gantry sliding force, deck unit erection gantry relies on walking roller to walk downwards, the oil pressure of now controlling traction top provides certain resistance to guarantee that deck unit erection gantry at the uniform velocity glides, after completing a reduction cylinder stroke, repeat again step above, deck unit erection gantry is constantly walking downwards just, in the time that the 1st roller runs into cord clip, load transfer synthlipsis cylinder, roller is lifted and taken in walking mechanism main body, cross after cord clip, the 1st roller contacted with main push-towing rope and continued the walking of rolling by load transfer jacking cylinder again, other roller is also to cross over like this cord clip, can guarantee to have in the both sides of whole deck unit erection gantry center of gravity 1 roller to contact with main push-towing rope in whole walking process, and assurance deck unit erection gantry can not be tumbled, when deck unit erection gantry goes downwards to the main push-towing rope ratio of slope when milder, because sliding force is not enough to overcome friction, the descending walking of deck unit erection gantry can stop, and at this moment a hydraulic winch will be installed downward tractive force is provided, and loop wheel machine just can go downwards to the extreme lower position of main push-towing rope,
The process of the up walking of deck unit erection gantry is:
Traction fixing device withstands cord clip as counter-force point, and hitch frame is as force transmission element, and hydraulic haulage jack provides tractive force; In the time that deck unit erection gantry will be walked, the very heavy jacking cylinder of the load transfer of load transfer device, 4 walking rollers all contact with main push-towing rope, and whole deck unit erection gantry is by jack-up, and traction jack lower gripper unclamps, upper clamp holder clamping steel strand, traction jacking cylinder promotes whole
Individual deck unit erection gantry also relies on the walking roller walking that scrolls up, in the time that the 1st roller runs into cord clip, load transfer synthlipsis cylinder, roller is lifted and taken in walking main body, crossed after cord clip, the 1st roller contacted with main push-towing rope and continued the walking of rolling by load transfer jacking cylinder again, and other roller is also to cross over like this cord clip, in whole walking process, can guarantee to have in the both sides of whole deck unit erection gantry center of gravity 1 roller to contact with main push-towing rope, and assurance deck unit erection gantry can not be tumbled.
8. the traveling method of the deck unit erection gantry of hydraulic haulage and roller walking combination according to claim 7, it is characterized in that: the main body of the walking mechanism of the deck unit erection gantry of described hydraulic haulage and roller walking combination is symmetrical, hitch frame and traction top are pulled down to the another side that refills walking main body, traction fixing device is also pulled down and is installed to another side, just can realize the bivector traction walking of deck unit erection gantry.
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| CN108249333A (en) * | 2018-02-09 | 2018-07-06 | 湖北思泽新能源科技有限公司 | A kind of walking mechanism of improved cable crane |
| CN110143525A (en) * | 2018-02-11 | 2019-08-20 | 中交路桥建设有限公司 | A kind of deck unit erection gantry for having wide-angle and swinging shifting and climbing capacity |
| CN110143526A (en) * | 2018-02-11 | 2019-08-20 | 中交路桥建设有限公司 | A kind of applicable different main push-towing rope centers away from deck unit erection gantry |
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