CN105332344A - Multifunctional prefabricated highway steel bridge carrying and erecting vehicle - Google Patents
Multifunctional prefabricated highway steel bridge carrying and erecting vehicle Download PDFInfo
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- CN105332344A CN105332344A CN201510737651.3A CN201510737651A CN105332344A CN 105332344 A CN105332344 A CN 105332344A CN 201510737651 A CN201510737651 A CN 201510737651A CN 105332344 A CN105332344 A CN 105332344A
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Abstract
The invention relates to a multifunctional prefabricated highway steel bridge carrying and erecting vehicle, which comprises a storage rack, a handle, a front wheel and a rear wheel, wherein a front guide roller flap gate and side guide roller flap gates are respectively arranged on the storage rack through hinges; a front guide roller is arranged on the front guide roller flap gate through a front guide roller bearing seat; side guide rollers are arranged on the side guide roller flap gates through side guide roller bearing seats; vertical guide rollers vertical to the side guide roller flap gates are also arranged on the side guide roller flap gates; the front wheel adopts a crawler-type front wheel structure. The multifunctional prefabricated highway steel bridge carrying and erecting vehicle meets the requirement of prefabricated highway steel bridge engineer operation accurate position adjustment, is simple to operate, easy and labor-saving, high-efficient and quick, reliable to work, and adaptable to various geographical conditions, prevents the wheels from being mired, and is simple in structure, small in size, low in cost and complete in function.
Description
Technical field
The invention belongs to engineer operation equipment technical field, be specifically related to the carrying erection car of a kind of assembly type steel bridge on highway also known as Bailey bridge.Can be widely used in earthquake relief work and bridge engineering operation is carried out to the rush construction repairing of assembly type steel bridge on highway and military upper ancillary works soldier, and various goods and materials pass through storage and the transport in weak soil area.
Background technology
Engineer operation equipment carries out assembly type steel bridge on highway rush construction repairing in China, the road is clear and plays very important effect in logistics support.Assembly type steel bridge on highway, as the material for preparedness against war one of of Ministry of Communications for official reserves, is responsible for storing respectively in each provinces, municipalities and autonomous regions traffic department and Ministry of Communications respectively directly under units concerned by Ministry of Communications.No matter to highway bridge repairing in wartime, rush construction, overcome rivers obstacle, still antidetonation, the flood-fighting disaster relief, traffic support are all significant at ordinary times.In addition, civilian construction field as original bridge rush-repair reinforce, newly building bridge and various engineering construction also extensive use assembly type steel bridge on highway.Particularly in recent years, in the natural calamities such as Wenchuan, Yushu earthquake and Zhouqu County's mud-rock flow, all there is application, in military field, also can be used for the bridge engineering operation of ancillary works soldier, raise the efficiency, strengthen the mobility of army.But its erection method of existing assembly type steel bridge on highway is mainly cantilever and releases method and lift-on/lift-off system, cantilever release method operating personnel is many, labour intensity large, consumes the muscle power that operation hand is more, and the time expended in transport and connecting elements is longer; Lift-on/lift-off system must adopt the large-scale erection hanging device of bulky heaviness to carry out operation, and its mobility is poor, and engineering cost is high, particularly affect large by erection place limitation, so that a lot of river valley, gully cannot be installed and used.Simultaneously because the truss of steel bridge component and crossbeam are steel material, volume and weight is all very large, and set up in assembled process at steel bridge, need position accurately to transfer and docking, but these the large-scale erection hanging devices used at present cannot meet the needs of this type of engineer operation completely.
In assembly type steel bridge on highway erection process, first need to rely on manpower truss, crossbeam etc. to be moved on carrying erection car, then dock, because truss, crossbeam etc. and the carrying friction of setting up between car rack are rigidity friction, frictional force is excessive, cause mobile difficulty, waste time and energy, task difficulty is large.Again because carrying erection car often will, in weak soil area operations such as silts, cause wheel to be absorbed in comparatively dark, cannot normal operating.What these problems all directly affected steel construction piece butt-joint operation completes the construction speed with whole assembly type steel bridge on highway smoothly.
In addition, pack up front guide roller returning face plate and side steering roll returning face plate, carrying erection car also can be used for goods and materials by muddy weak soil area, and lift cylinder also can improve its traffic capacity by rugged section.
Summary of the invention
Technical problem to be solved by this invention is: solve above-mentioned prior art Problems existing, and provides a kind of multifunctional fabricated highway steel bridge carrying erection car, meets the requirement of assembly type steel bridge on highway engineer operation elaborate position adjustment, simple to operate, easily laborsaving, efficient quick, reliable operation, and can various geographical conditions be adapted to, avoid wheel to be absorbed in muddy weak soil, whole carrying erection bassinet structure is simple, and volume is little, cost is low, multiple functional.
The technical solution used in the present invention is:
A kind of multifunctional fabricated highway steel bridge carrying erection car, comprises shelf, handle, front-wheel and trailing wheel; Guide roller returning face plate and side steering roll returning face plate before described shelf are installed respectively by hinge, front guide roller is arranged on front guide roller returning face plate by leading to roll bearing seat, described side steering roll returning face plate is two pieces, side steering roll is arranged on side steering roll returning face plate by side steering roll bearing support, described front guide roller and side steering roll axis direction orthogonal; Side steering roll axis is parallel with shelf side; Side steering roll returning face plate is also provided with the setting guide roller vertical with side steering roll returning face plate; Described front-wheel adopts crawler type fore wheel structure.
In technique scheme, described front guide roller returning face plate and side steering roll returning face plate can overturn downwards, make carrying set up car rack face and keep smooth, improve its compliance, not only be applicable to assembly type steel bridge on highway, also be applicable to carrying and the storage of other goods and materials, and be applicable to the operation in weak soil area.
In technique scheme, described front guide roller and the side steering roll returning face plate side all with respective is parallel, and returning face plate in working order time and shelf on plane on isoplanar, returning face plate packs up the bottom surface being fixed on shelf when off working state.
In technique scheme, described setting guide roller is distributed in the side of side steering roll, and higher than the level height of side steering roll, erectting guide roller has two groups, often organizes two, and two spacing erectting guide rollers equal or slightly larger than the width of steel bridge truss or crossbeam.
In technique scheme, described setting guide roller comprises mount pad, bearing, axle sleeve and snap ring, mount pad is fixed on side steering roll returning face plate, mount pad top is shouldered shaft, shouldered shaft installs bearing, axle sleeve is fixed on bearing, and bearing upper end and mount pad upper bands are takeed on shaft connection place and be provided with snap ring.
In technique scheme, described crawler type front-wheel comprises large belt wheel, small pulley, former, crawler belt and support; Large belt wheel has two, and before and after being distributed in, large belt wheel is connected with little axle by bearing fit, and little axle two ends are fixedly connected by fastening screw and former termination; Small pulley is takeed on little axle by bearing fit with band and is connected, and the little axle of band shoulder is connected with pedestal lower end with in the middle part of former by shaft hole matching simultaneously; Crawler belt is sleeved on two large belt wheels, and large belt wheel, small pulley engage with crawler belt, or belt wheel, small pulley make circular shaft greatly, and large belt wheel, small pulley are by frictional force connection for transmission crawler belt; The connecting rod that described frame upper sets up car by bearing pin one and carrying connects, and frame upper is also connected with shelf otic placode by bearing pin two.
In technique scheme, outside described large belt wheel, small pulley, be provided with backplate, avoid crawler belt and support to interfere.
In technique scheme, described shelf are fixed with riser, riser is fixed with top board, riser is connected with cylinder pedestal by two, left and right A brace, oil cylinder comprises large plunger and small plunger, and large plunger is connected with top board, and small plunger top is connected with handle bottom, cylinder pedestal lower end is provided with trailing wheel, and pedal is connected with riser or top board by spring.
In technique scheme, described cylinder pedestal and A brace hinged, A brace is again by rotating shaft, B brace and described connecting rod connection for transmission, and rotating shaft is arranged on riser.
In technique scheme, described pedal is steel framed structure, and it comprises two lever arms and front bearing bar and rear load-bearing bar, and fulcrum and the shelf rear end of lever arm are hinged.
Operating principle and advantageous effect:
Assembly type steel bridge on highway also known as Bailey bridge, no matter in highway bridge repairing in wartime, rush construction, overcome rivers obstacle, or in antidetonation flood fighting at ordinary times, rescue and relief work, traffic support, all play irreplaceable effect.When building assembly type steel bridge on highway, first need to rely on manpower to be moved by steelframe on carrying erection car, then carry out steelframe docking, during docking, Manual-pushing is also needed to adjust, truss, crossbeam etc. is moved on carrying erection car at manpower, and when passing adjustment on carrying erection car, because shelf surface and steelframe bottom surface rigidity rub, friction great efforts, mobile difficulty, wastes time and energy, and has a strong impact on the operating efficiency of steelframe docking.In order to improve this situation, the present invention has set up front guide roller, two side steering rolls and two groups of setting guide rollers on shelf; Like this, steel structure truss longitudinally move to carrying erection car docks time, steel structure truss rests on front guide roller, because front guide roller two end axles is mounted on bearing, roll very light, thus steel structure truss can be easy to be advancing to the position fast, and moves to setting by carrying erection car, docks.When steel truss or crossbeam laterally move to carrying erection car docks time, steel structure truss or crossbeam laterally rest on side steering roll, the two end axles of side steering roll is also mounted on bearing, roll very light, in order to laterally docking precisely puts in place, the present invention has installed one group respectively on two side steering rolls sides and has erect guide roller, the spacing erectting guide roller is equal to or slightly greater than the width of steel truss or crossbeam, thus guide roller energy well specification and the transverse shifting track ensureing steel structure truss or crossbeam is erect, prevent skew, guarantee truss or crossbeam docking precisely, rapid abutting joint.
The axle sleeve erectting guide roller is arranged on bearing, rolls very light, the direction of convenient adjustment steel structure truss or crossbeam, angle, spacing.Above-mentioned front guide roller, side steering roll, setting guide roller are installed on returning face plate; during work; returning face plate upward; the all plane work on shelf of front guide roller, side steering roll, setting guide roller; during off working state, returning face plate, is positioned at shelf bottom surface down; do not affect the smooth of plane on shelf, be conducive to protecting guide roller yet.In earthquake relief work and military training, field geology orographic condition is poor, carrying erection dolly can not all in smooth cement floor operation, but often will work at weak soils such as muddy, sandy soil, and steel truss and crossbeam volume and weight are all very large, collapsible wheel obtains very dark, causes carrying erection car normally to work, assembly type steel bridge on highway is built and is obstructed, and has a strong impact on earthquake relief work and military training.Carrying erection car front-wheel is designed to crawler type fore wheel structure by the present invention, solves this problem well.Crawler type front-wheel of the present invention includes front large belt wheel, rear large belt wheel, middle part small pulley and crawler belt, and large with contact area of ground, wheel, inside crawler belt, can not be absorbed in silt ground.In addition, its frame upper of crawler type front-wheel of the present invention is connected with connecting rod and shelf otic placode respectively by bearing pin, this structure design, not only make crawler type front-wheel can bear load on shelf well, and the link transmission that crawler type front-wheel sets up the original lifting mechanism of car by carrying controls, ensure that in whole mechanism lifting process, shelf are in equilibrium state all the time, shelf top is identical at an arbitrary position to ground level; Again because the control in carrying erection car direction controls primarily of trailing wheel (universal wheel), the carrying erection car landform adaptive capacity after therefore improving increases greatly, but the flexibility of its divertical motion does not reduce.
The present invention's application SolidWorks Three-dimensional Design Software, for the three-dimensional structure modeling of multifunctional fabricated highway steel bridge carrying erection car provides condition, its Assembly design technology, designer can be made when design elements, blank, catch the design relation between part, make model more practical.Its engineering drawing drawing techniques, can obtain the detailed dimensions of carrying erection car threedimensional model, for material object manufacture is provided convenience.The ANSYS software with power can to the structure of equipment threedimensional model, carries out the multianalysis of stressed, the distortion under various external load condition, stability and various dynamic characteristics, and completes its finite element analysis, verify its bearing capacity.
Accompanying drawing explanation
Fig. 1 is structural front view of the present invention;
Fig. 2 is structure top view of the present invention;
Fig. 3 is for erectting guide roller longitudinal sectional view;
Fig. 4 is crawler type fore wheel structure front view;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is crawler type front-wheel generalized section;
Fig. 7 is that the frame upper of crawler type front-wheel installs upward view.
Description of reference numerals:
1-handle, 2-shelf, 3-crawler type front-wheel, 4-trailing wheel, 5-riser, 6-top board, 7-oil cylinder, 8-pedal, 9-lever arm, bearing bar before 10-, 11-rear load-bearing bar, guide roller before 12-, guide roller returning face plate before 13-, 14-side steering roll, 15-side steering roll returning face plate, 16-erects guide roller, 17-mount pad, 18-bearing, 19-axle sleeve, 20-snap ring, 21-bearing pin one, 22-bearing pin two, the little axle of 23-, the large belt wheel of 24-, 25-small pulley, 26-former, 27-crawler belt, the little axle of 28-band shoulder, 29-support, 30-front-wheel bearing, 31-connecting rod, 32-shelf otic placode.
Detailed description of the invention
See Fig. 1 ~ Fig. 7, multifunctional fabricated highway steel bridge carrying erection car of the present invention, comprises shelf, handle, front-wheel and trailing wheel; Guide roller returning face plate and side steering roll returning face plate before described shelf are installed respectively by hinge, front guide roller is arranged on front guide roller returning face plate by leading to roll bearing seat, described side steering roll returning face plate is two pieces, side steering roll is arranged on side steering roll returning face plate by side steering roll bearing support, described front guide roller and side steering roll axis direction orthogonal; Side steering roll axis is parallel with shelf side; Side steering roll returning face plate is also provided with the setting guide roller vertical with side steering roll returning face plate; Described front-wheel adopts crawler type fore wheel structure.
Above-mentioned front guide roller and the side steering roll returning face plate side all with respective is parallel, and returning face plate in working order time and shelf on plane on isoplanar, returning face plate packs up the bottom surface being fixed on shelf when off working state.
Above-mentioned setting guide roller is distributed in the side of side steering roll, and higher than the level height of side steering roll, erectting guide roller has two groups, often organizes two, and two spacing erectting guide rollers equal or slightly larger than the width of steel bridge truss or crossbeam.
Above-mentioned setting guide roller comprises mount pad, bearing, axle sleeve and snap ring, mount pad is fixed on side steering roll returning face plate, and mount pad top is shouldered shaft, and shouldered shaft installs bearing, axle sleeve is fixed on bearing, and bearing upper end and mount pad upper bands are takeed on shaft connection place and be provided with snap ring.
Above-mentioned crawler type front-wheel comprises large belt wheel, small pulley, former, crawler belt and support; Large belt wheel has two, and before and after being distributed in, large belt wheel is connected with little axle by bearing fit, and little axle two ends are fixedly connected by fastening screw and former termination; Small pulley is takeed on little axle by bearing fit with band and is connected, and the little axle of band shoulder is connected with pedestal lower end with in the middle part of former by shaft hole matching simultaneously; Crawler belt is sleeved on two large belt wheels, and large belt wheel, small pulley engage with crawler belt; The connecting rod that described frame upper sets up car by bearing pin one and carrying connects, and frame upper is also connected with shelf otic placode by bearing pin two.
The concrete structure that above-mentioned large belt wheel, small pulley engage with crawler belt has two kinds: one is that large belt wheel, small pulley both can make circular shaft, engages under the effect of frictional force with crawler belt; Another kind is that large belt wheel, small pulley can make toothed shank again, makes large belt wheel, small pulley engages with crawler belt.
Also be provided with backplate outside above-mentioned large belt wheel, small pulley, avoid crawler belt and support to interfere.
Above-mentioned shelf are fixed with riser, riser is fixed with top board, riser is connected with cylinder pedestal by two, left and right A brace, oil cylinder comprises large plunger and small plunger, large plunger is connected with top board, small plunger top is connected with handle bottom, and cylinder pedestal lower end is provided with trailing wheel, and pedal is connected with riser or top board by spring.
Above-mentioned cylinder pedestal and A brace hinged, A brace is again by rotating shaft, B brace and described connecting rod connection for transmission, and rotating shaft is arranged on riser.
Above-mentioned pedal is steel framed structure, and it comprises two lever arms and front bearing bar and rear load-bearing bar, and fulcrum and the shelf rear end of lever arm are hinged.
Operating principle:
Carrying erection car can be used for by all for assembly type steel bridge on highway components from the outbound of storage storehouse, and is transported to operation preparation region after unloading, and prepares region and is transported to erection ground, and realize the quick and precisely splicing of truss, crossbeam from operation.
Region is prepared in operation, carrying erection car utilizes the valve piston cylinder of hand lever starting hydraulic system, pass through hydraulic drive, drive large piston, jack-up shelf, (in lifting process, rim brake is positioned at the next duty to be adjusted to proper height, the relief valve of hydraulic system cuts out locking, hydraulic locking cylinder after putting in place, be in packing state, in overall process, hydraulic system realizes mechanical energy arrives mechanical energy again conversion to hydraulic energy), in transport process, operator is pushed by handle, traction transport erection car, and utilize the rotation of handle control bottom main directive wheel towards, thus control body movement direction.Truss both transports by vertical purlin (truss erects, and the left and right sides manually buttresses), also transports by falling purlin (truss fell, and buttressed without the need to personnel), all components of bridge such as carrying erection car also can transport crossbeam, flat to roll, bridge plate.
On erection ground, during the transport of falling purlin, truss class is needed to be erected by truss, and roll on splicing (when vertical purlin is transported flat, can direct splicing), carrying erection car by check mechanism and handle realize truss up and down significantly regulate (in decline process, rim brake is positioned at upper duty, the relief valve of hydraulic system is opened, hydraulic oil refluxes, hydraulic cylinder pressure relief, until shelf reach predetermined altitude), also by the cooperation of pedal and front guide roller, lever principle is utilized to realize the fine setting up and down of truss, simultaneously, (cylindrical contact face is comparatively smooth to realize the WidFin of truss by front guide roller, reduce the friction factor with truss, be conducive to moving left and right of truss).In whole splicing, carrying erection car all should start brake gear, fixing car body.Truss class squeezes into pin rapidly.Then withdraw from carrying erection car, continue carrying.When removing receipts truss, carrying erection car inserts bottom truss, promotes shelf by hydraulic cylinder, front guide roller is contacted, then light pedal with truss with pedal front end, fine setting truss, now get pin, time saving and energy saving, finely tune pedal after getting a pin again and get second pin.It is comparatively easy that supporting role first pin due to carrying erection car is got, truss is lifted without the need to people when playing second pin, only need personnel to buttress truss on carrying erection car and can get pin, the truss that can fall after the disengaging of front and back truss is placed on carrying erection car and withdraws.
The erection of crossbeam and remove receipts both can the operation of separate unit carrying erection car, also can the operation simultaneously of two carrying erection cars, first overturn returning face plate before operation to duty, during operation, suitable operating type can be selected according to landform, operating personnel.During erection crossbeam, as the operation of single carrying erection car, first operation carrying erection car arrives stitching position outside truss, and crossbeam erects by rear cross beam class on carrying erection car, and two that are placed in side steering roll are erect in the middle of guide roller, make crossbeam lower end a little more than truss peg top, push crossbeam, for when the peg hole of crossbeam both sides is close to peg, operating grip reduces shelf, crossbeam makes peg and peg hole automatically combine under gravity, optionally carrying erection car or left and right promotion crossbeam can be promoted in front and back as not in place, peg and peg hole are combined put in place, can withdraw in conjunction with carrying erection car after putting in place.During two carrying erection car operations, can one be placed in inside truss, another is placed in outside truss, crossbeam is run in the middle of the setting guide roller of two carrying erection cars, make the peg hole of crossbeam aim at the peg position of truss, the shelf that can first reduce or promote carrying erection car inside truss after crossbeam puts in place make peg hole close to peg, as needed adjustment as far as possible, outside carrying erection car can coordinate adjustment, and after guaranteeing to put in place, two carrying erection car racks are reduced to minimum point and withdraw.
Remove the time receiving, as the operation of separate unit carrying erection car, first in the middle part of operation carrying erection car to crossbeam, make crossbeam be positioned in the middle of two setting guide rollers, promote shelf and peg and peg hole are departed from, then push crossbeam laterally, crossbeam and truss are departed from; Also can operation outside truss during operational difficulty in the middle of the crossbeam, crossbeam is placed in be erect in the middle of guide roller between two, promote peg and the disengaging of peg hole that shelf make to be close to carrying erection side, then lifting opposite side crossbeam makes the peg of opposite side and peg hole depart from, then push crossbeam laterally, crossbeam and truss are departed from; During two carrying erection car operations, Ke Yitai is placed in the middle part of crossbeam, and one is placed in outside, and middle part carrying erection car is used for boist truss make it to depart from crossbeam, and outside carrying is set up car and middle part and set up car and match and remove receipts crossbeam, and is transported to appointed place.
Compared with prior art, beneficial effect of the present invention is:
(1) the crawler type front-wheel of the present invention's design improves applicable ability and the safety of assembly type steel bridge on highway carrying erection car, particularly for seashore, the weak soil area such as muddy, and the compliance that improve adverse weather, can all weather operations, as the rainy day cause muddy, this Athey wheel improves supporting capacity; The ice and snow weather of low temperature severe cold, adopts Athey wheel to avoid skidding, improves applicability and the safety of operation.
(2) guide roller of the present invention's design is reversible, has expanded the function of carrying erection car, makes it both can be used as the special tool of assembly type steel bridge on highway carrying erection, also can be used as the common apparatus of the various equipment goods and materials storage such as equipment, goods and materials transport.
(3) crawler type front-wheel landform is adaptable, but gait of march is slow, and wheeled front-wheel landform adaptive capacity is poor, but gait of march soon, and the present invention can adapt to the operation under multiple landform by more wheel change, and practicality is stronger.Only need 1-2 people to drag handle in transport process, decrease the required troops of carrying.This car normal travel speed is 1.0m/s, and running gait of march can reach 2.0m/s.
(4) front guide roller replaces original equalizer bar, and truss both can adjust left and right on front guide roller, can adjust front and back again, makes truss splicing more flexible.
(5) operation form of the present invention to original assembly type steel bridge on highway has larger lifting and improvement, significantly reduces operating personnel, significantly improves operating speed, remarkable reduction personnel operation intensity.Only need 5 people during erection truss, 1 people operates carrying erection car, and 4 people buttress truss, only needs 5 people during erection crossbeam, and 1 people operates carrying erection car, and 4 people push crossbeam.Contrast original operating type, operating personnel reduces 34%, and maximum heavy burden alleviates 50%, and heavy burden operating personnel reduces 75%, and the activity duration of bearing a heavy burden reduces 83%, ultimate range minimizing more than 85% of advancing of bearing a heavy burden.
Along with the increase of this equipment, operating speed will constantly be accelerated, multiple stage carrying can set up car operation simultaneously, operating type method is various, flexible, but operating personnel obviously reduces, operation maximum intensity drop by half in operation process, and the operation Distance geometry duration of bearing a heavy burden greatly shortens, mobility also strengthens thereupon, when build a bridge longer time its superiority more obvious, operational security also significantly improves thereupon.In operation process, utilization erection itself with remove receipts function, make more quick, accurate, the laborsaving and safety of operation, the insertion of pin, smash out and can settle at one go, efficiency significantly improves, and the splicing of crossbeam is received nothing and obviously collided with removing.And the operation under multiple landform can be adapted to by more wheel change, practicality is stronger.For " 321 " shaped steel bridge that erection is the double individual layer of 21m across footpath, needed for normal cantilever release method, troops are 41 people, its squadron officer 1 people, two each 8 people of truss class, two each 8 people of crossbeam class, one connects class 8 people, single maximum heavy burden is 1/4th of truss or crossbeam weight, heavy burden travel distance is about whole bridge length, always about 2 hours consuming time, all truss classes and crossbeam class (i.e. 32 people, account for and participate in 78% of operation number) be in the half (about 1 hour) that the intensive work time (or heavy burden crossbeam or truss weight 1/8 and above activity duration) accounts for total operation time.And coordinate two uses of carrying erection car that troops can be made will to reduce to 27 people, its squadron officer 1 people, carrying class 8 people (is only responsible for truss, crossbeam is carried on carrying erection car, operation distance is no longer than 3 meters, namely the length of a truss is no more than), truss class 5 people and 1 carrying erection car, crossbeam class 5 people and 1 carrying erection car, one connects class 8 people, single maximum heavy burden is 1/8th (namely maximum heavy burden alleviates 50%) of truss or crossbeam weight, bear a heavy burden and transport apart from being generally no more than 3 meters, always consuming timely will be less than 1.5 hours, personnel are without obvious high-strength working, heavy burden personnel are only plate for carrying 8 people, activity duration (heavy burden crossbeam or truss weight 1/8 and above activity duration) of bearing a heavy burden is no more than 10 minutes.Contrast original operating type, operating personnel reduces 34%, and maximum heavy burden alleviates 50%, and heavy burden operating personnel reduces 75%, and the activity duration of bearing a heavy burden reduces 83%, ultimate range minimizing more than 85% of advancing of bearing a heavy burden.If increase by 5 people and 1 carrying erection car again for truss operation, increase by 1 carrying erection car for crossbeam and bridge deck (longeron) operation, then whole operating speed will promote more than 30%, and namely personnel increase by 18.5%, and operating speed can improve more than 30%.
(6) the present invention increases beam erection and removes receiving apparatus when not changing complete vehicle structure and not reducing car body strength, and this device both can transport crossbeam, and can set up and remove receipts crossbeam again, operating personnel is reduced to 2-3 people by original 8-10 people; Being directed laterally to roller makes original a dead lift sliding friction become rolling friction; Erectting guide roller makes crossbeam advance fast in set direction, avoids the collision of crossbeam and truss; Due to the castering action of hydraulic cylinder, without the need to manually lifting crossbeam and truss quick separating, making the erection of crossbeam and removing receipts not only fast but also laborsaving.
(7) operation prepares faster, more convenient, safer.Because the present invention adopts turnover front guide roller to substitute original fixed equalizer bar, make in handling process that shelf place plane is without projection, handling process is more steady.The present invention adopts two side steering rolls and 4 to erect guide rollers to set up crossbeam, avoids the collision of crossbeam and truss, makes operation process more steady, fast and safety.Meanwhile, this erection car has very strong transporting capacity, can carry multi-disc truss and crossbeam simultaneously, and transporting velocity is more than 10 times of original a dead lift, and it is 5 people that operating personnel can be simplified by 8 people.
(8) assembly type steel bridge on highway carrying erection car is pure frame for movement, and this structure technology is ripe, and Stability Analysis of Structures, lightweight, cost is low, simple to operation, and intensity is high, failure rate is low, and reliability is high, and applicability is strong.
In a word, by the utilization of carrying erection make the operation of assembly type steel bridge on highway more easy, efficiently, safely, fast and accurately, steadily, significantly promote operating efficiency, the operating cost such as use manpower and material resources sparingly.This equipment effectively can promote Mechanization Level and the landform adaptive capacity of assembly type steel bridge on highway operation, when solving simple manpower operation, labour intensity is large, expend in the time long problem connected and in transport member, and the problem that lifting operation method is serious by place restriction, operating speed is slow, for my army's emergent battle and rescue and relief work are raced against time.This equipment both can be used as the necessary accessories of wartime or rescue and relief work assembly type steel bridge on highway fast erecting, also can be used as the auxiliary appliance of assembly type steel bridge on highway routine use, peacetime training.
Claims (9)
1. a multifunctional fabricated highway steel bridge carrying erection car, comprises shelf, handle, front-wheel and trailing wheel; It is characterized in that, guide roller returning face plate and side steering roll returning face plate before described shelf are installed respectively by hinge, front guide roller is arranged on front guide roller returning face plate by leading to roll bearing seat, described side steering roll returning face plate is two pieces, side steering roll is arranged on side steering roll returning face plate by side steering roll bearing support, described front guide roller and side steering roll axis direction orthogonal; Side steering roll axis is parallel with shelf side; Side steering roll returning face plate is also provided with the setting guide roller vertical with side steering roll returning face plate; Described front-wheel adopts crawler type fore wheel structure.
2. multifunctional fabricated highway steel bridge carrying erection car according to claim 1, it is characterized in that, front guide roller returning face plate and side steering roll returning face plate can overturn downwards.
3. multifunctional fabricated highway steel bridge carrying erection car according to claim 1, it is characterized in that, described front guide roller is parallel with the returning face plate of side steering roll all with respective, and returning face plate in working order time and shelf on plane on isoplanar, returning face plate packs up the bottom surface being fixed on shelf when off working state.
4. multifunctional fabricated highway steel bridge carrying erection car according to claim 1, it is characterized in that, described setting guide roller is distributed in the side of side steering roll, and higher than the level height of side steering roll, erect guide roller and have two groups, often organize two, erect the spacing of guide rollers for two and to equal or slightly larger than the width of steel bridge truss or crossbeam.
5. multifunctional fabricated highway steel bridge carrying erection car according to claim 1, it is characterized in that, described setting guide roller comprises mount pad, bearing, axle sleeve and snap ring, mount pad is fixed on side steering roll returning face plate, mount pad top is shouldered shaft, shouldered shaft installs bearing, and axle sleeve is fixed on bearing, and bearing upper end and mount pad upper bands are takeed on shaft connection place and be provided with snap ring.
6. multifunctional fabricated highway steel bridge carrying erection car according to claim 1, it is characterized in that, described crawler type front-wheel comprises large belt wheel, small pulley, former, crawler belt and support; Large belt wheel has two, and before and after being distributed in, large belt wheel is connected with little axle by bearing fit, and little axle two ends are fixedly connected by fastening screw and former termination; Small pulley is takeed on little axle by bearing fit with band and is connected, and the little axle of band shoulder is connected with pedestal lower end with in the middle part of former by shaft hole matching simultaneously; Crawler belt is sleeved on two large belt wheels, and large belt wheel, small pulley engage with crawler belt; Be provided with backplate outside large belt wheel, small pulley, avoid crawler belt and support to interfere; Large belt wheel, small pulley both can have been made circular shaft and engage with crawler belt under the effect of frictional force, also can make toothed shank and belt wheel is engaged better with crawler belt; The connecting rod that described frame upper sets up car by bearing pin one and carrying connects, and frame upper is also connected with shelf otic placode by bearing pin two.
7. multifunctional fabricated highway steel bridge carrying erection car according to claim 1, it is characterized in that, described shelf are fixed with riser, riser is fixed with top board, and riser is connected with cylinder pedestal by two, left and right A brace, and oil cylinder comprises large plunger and small plunger, large plunger is connected with top board, small plunger top is connected with handle bottom, and cylinder pedestal lower end is provided with trailing wheel, and pedal is connected with riser or top board by spring.
8. multifunctional fabricated highway steel bridge carrying erection car according to claim 1, it is characterized in that, described cylinder pedestal is hinged with A brace, and A brace passes through rotating shaft, B brace and described connecting rod connection for transmission again, and rotating shaft is arranged on riser.
9. multifunctional fabricated highway steel bridge carrying erection car according to claim 1, it is characterized in that, described pedal is steel framed structure, and it comprises two lever arms and front bearing bar and rear load-bearing bar, and fulcrum and the shelf rear end of lever arm are hinged.
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| CN201510737651.3A CN105332344B (en) | 2015-11-04 | 2015-11-04 | Multifunctional prefabricated highway steel bridge carrying and erecting vehicle |
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| CN201510737651.3A CN105332344B (en) | 2015-11-04 | 2015-11-04 | Multifunctional prefabricated highway steel bridge carrying and erecting vehicle |
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| CN105332344A true CN105332344A (en) | 2016-02-17 |
| CN105332344B CN105332344B (en) | 2017-04-26 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106677072A (en) * | 2017-01-26 | 2017-05-17 | 中国人民解放军国防科学技术大学 | Detachable highway steel bridge carrying and erecting vehicle of average height installation |
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| CN106677072B (en) * | 2017-01-26 | 2019-04-09 | 中国人民解放军国防科技大学 | Detachable highway steel bridge carrying and erecting vehicle with general height |
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|---|---|
| CN105332344B (en) | 2017-04-26 |
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