CN105332343A - Prefabricated highway steel bridge carrying and erecting van with crawler wheels - Google Patents
Prefabricated highway steel bridge carrying and erecting van with crawler wheels Download PDFInfo
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- CN105332343A CN105332343A CN201510737304.0A CN201510737304A CN105332343A CN 105332343 A CN105332343 A CN 105332343A CN 201510737304 A CN201510737304 A CN 201510737304A CN 105332343 A CN105332343 A CN 105332343A
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Abstract
The invention discloses a prefabricated highway steel bridge carrying and erecting van with crawler wheels. The prefabricated highway steel bridge carrying and erecting van comprises a storage rack, a handle, a front wheel and a rear wheel, wherein the front wheel adopts a crawler type front wheel structure, and comprises large belt wheels, a small belt wheel, a center plate, a crawler belt and a bracket; the large belt wheels are connected with a small shaft through bearing fit, and the two ends of the small shaft are fixedly connected with the end head of the center plate; the small belt wheel is connected with a shoulder small shaft through bearing fit; the shoulder small shaft is simultaneously connected with the center plate and the bracket through shaft hole fit; the crawler belt is arranged on two large belt wheels in a sleeving mode; the large belt wheels, the small belt wheel and the crawler belt are engaged; the upper part of the bracket is connected with a connecting rod through a pin roll I, and is connected with a lug plate of the storage rack through a pin roll II. The prefabricated highway steel bridge carrying and erecting van can be adaptive to prefabricated highway steel bridges of all models in China, can prevent wheels from sinking into silt, is simple to operate, easy and labor-saving, efficient and quick.
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.
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, and assembly type steel bridge on highway all has application in the natural calamities such as Wenchuan, Yushu earthquake and Zhouqu County's mud-rock flow, 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 engineer operation completely.
In earthquake relief work and military training, general geographical features as poor geologic condition, carrying erection car often will operation in silt ground, causes wheel to be absorbed in darker, cannot normally work, what directly affect steel-frame member butt-joint operation carries out the construction speed with whole assembly type steel bridge on highway smoothly.
Summary of the invention
Technical problem to be solved by this invention is: solve above-mentioned prior art Problems existing, and a kind of assembly type steel bridge on highway carrying erection car with Athey wheel is provided, adapt to various geographical conditions, wheel is avoided to be absorbed in silt, simple to operate, easily laborsaving, efficient quick, and volume is little, cost is low, reliable operation.
The technical solution used in the present invention is:
There is an assembly type steel bridge on highway carrying erection car for Athey wheel, comprise shelf, handle, front-wheel and trailing wheel; Described front-wheel adopts crawler type fore wheel structure.
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; 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 the otic placode of shelf by bearing pin two.
In technique scheme, the described assembly type steel bridge on highway carrying erection car with Athey wheel, be applicable to the assembly type steel bridge on highway of the present all models of China, and heavier to component, that erection required precision is higher assembly type steel bridge on highway applicability is stronger.
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.
In technique scheme, described shelf are placed with the flat of guiding and roll.
Operating principle and advantageous effect:
Assembly type steel bridge on highway, also known as Bailey bridge, in highway bridge repairing in wartime, rush construction, overcomes rivers obstacle, and in antidetonation flood fighting at ordinary times, rescue and relief work, traffic support, all plays irreplaceable effect.In earthquake relief work and military training, field geology orographic condition is poor, carrying erection car can not all in smooth cement floor operation, but often will in silt work on the ground, and steel structure 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, crawler type front-wheel is enable to be elevated and to deflect, the landform that flexible adaptation is different more and the direction of motion, 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 the assembly type steel bridge on highway carrying erection car with Athey wheel 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 various external load condition lower stress, distortion, 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 crawler type fore wheel structure front view;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is crawler type front-wheel generalized section;
Fig. 6 is the frame upper mounting structure upward view of crawler type front-wheel;
Fig. 7 is that the flat of guiding rolls structural representation;
Fig. 8 is that the flat of guiding rolls cross-sectional view;
Fig. 9 is the lateral view of Fig. 7.
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, the little axle of 12-bearing pin one, 13-bearing pin two, 14 1, the large belt wheel of 15-, 16-small pulley, 17-former, 18-crawler belt, the little axle of 19-band shoulder, 20-support, 21-front-wheel bearing, 22-connecting rod, 23-shelf otic placode, 24-is flat rolls support, 25-guide bearing, 26-guiding trestle, 27-cylinder, 28-drum shaft, 29-bearing, 30-guide bearing bearing pin, 31-block.。
Detailed description of the invention
See Fig. 1 ~ Fig. 6, multifunctional fabricated highway steel bridge carrying erection car of the present invention, comprises shelf, handle, front-wheel and trailing wheel; Described front-wheel adopts crawler type fore wheel structure.
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 the otic placode of shelf by bearing pin two.
Above-mentioned large belt wheel, small pulley engage concrete structure with crawler belt and are: large belt wheel, small pulley can make circular shaft, and under the effect of frictional force, large belt wheel, small pulley engage with crawler belt; Or large belt wheel, small pulley make gear shaft, and large belt wheel, small pulley engage with crawler belt.
Backplate is provided with outside above-mentioned large belt wheel, small pulley.
Above-mentioned shelf are placed with the flat of guiding to roll.
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.
See Fig. 7 ~ Fig. 9, the present invention increases the flat of guiding at shelf and rolls explanation: install guiding device additional flat rolling on, and truss is located faster, more accurate.In Fig. 7 ~ Fig. 9,24-is flat rolls support, 25-guide bearing, 26-guiding trestle, 27-cylinder, 28-axle, 29-bearing, 30-guide bearing bearing pin, 31-block.Block is fixed by screws on guiding trestle, and block rolls support fix with flat.Guide bearing and guide bearing bearing pin adopt shaft hole matching, and guide bearing bearing pin is fixed on guiding trestle by nut, guiding trestle can need according to different width install position, different hole, cylinder is connected by 4 bearings with axle, and axle is fixed on support by snap ring and shaft hole matching again.
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 equalizer bar, 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).When needing braking, carrying erection car can 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, first roll (as shown in Figure 1) be placed on carrying erection car by flat, make the flat long limit of rolling long limit and being parallel to carrying erection car, operation carrying erection car arrives stitching position outside truss, and crossbeam erects by rear cross beam class on carrying erection car, and be placed in flat rolling on, crossbeam is made to be positioned in the middle of two guide bearings (guiding trestle), 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, first roll (as shown in Figure 1) be placed in flat on carrying erection car, make the flat long limit of rolling long limit and being parallel to carrying erection car, flat rolling can be put 1 and also can be put 2, as put 2, answer 2 placed side by side.Carrying erection car can one be placed in inside truss, another is placed in outside truss, crossbeam is run at two carrying erection cars, make the peg hole of crossbeam aim at the peg position of truss as far as possible, 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, 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 roll (as shown in Figure 1) be placed on carrying erection car by flat, make the flat long limit of rolling long limit and being parallel to carrying erection car, in the middle part of operation carrying erection car to crossbeam, make crossbeam be positioned in the middle of two guide bearings (guiding trestle), 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 made to be placed in flat rolling on, 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) 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.
(3) 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%.
(4) the present invention is not when changing complete vehicle structure and not reducing car body strength, utilize the function of setting up and equalling the mode of rolling and realizing beam erection and remove receipts, this operational method 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; Flat utilization of rolling makes original a dead lift sliding friction become rolling friction; 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.
(5) operation prepares faster, more convenient, safer.Because the present invention adopts carrying erection car carrying and erection assembly type steel bridge on highway, make 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.
(6) 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 (7)
1. there is an assembly type steel bridge on highway carrying erection car for Athey wheel, comprise shelf, handle, front-wheel and trailing wheel; It is characterized in that, described front-wheel adopts crawler type fore wheel structure.
2. the assembly type steel bridge on highway carrying erection car with Athey wheel 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; The connecting rod that described frame upper sets up car by bearing pin one and carrying connects, and frame upper is also connected with the otic placode of shelf by bearing pin two.
3. the assembly type steel bridge on highway carrying erection car with Athey wheel according to claim 1, is characterized in that, shelf are placed with the flat of guiding and roll.
4. the assembly type steel bridge on highway carrying erection car having Athey wheel according to claim 2, it is characterized in that, described large belt wheel, small pulley engage concrete structure with crawler belt and are: large belt wheel, small pulley both can make circular shaft, engaged under the effect of frictional force with crawler belt; Or large belt wheel, small pulley make toothed shank, and large belt wheel, small pulley engage with crawler belt.
5. the assembly type steel bridge on highway carrying erection car having Athey wheel according to claim 2, is characterized in that, be provided with backplate outside described large belt wheel, small pulley.
6. the assembly type steel bridge on highway carrying erection car having Athey wheel according to claim 2, is characterized in that, described shelf are placed with the flat of guiding and roll.
7. the assembly type steel bridge on highway carrying erection car having Athey wheel according to claim 6, it is characterized in that, described guiding flat roll for: install guiding device additional flat rolling on, the flat agglomeration of guiding is drawn together and is flatly rolled support, guide bearing, guiding trestle, cylinder, axle, bearing, guide bearing bearing pin, block; Block is fixed by screws on guiding trestle, and block rolls support fix with flat, guide bearing and guide bearing bearing pin adopt shaft hole matching, and guide bearing bearing pin is fixed on guiding trestle by nut, guiding trestle can need according to different width position, different hole is installed, cylinder is connected by 4 bearings with axle, and axle is fixed on support by snap ring and shaft hole matching again.
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Cited By (1)
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| CN105332343B (en) | 2017-06-09 |
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