CN104724166A - Hydraulic suspension heavy-load transportation vehicle - Google Patents
Hydraulic suspension heavy-load transportation vehicle Download PDFInfo
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- CN104724166A CN104724166A CN201310705653.5A CN201310705653A CN104724166A CN 104724166 A CN104724166 A CN 104724166A CN 201310705653 A CN201310705653 A CN 201310705653A CN 104724166 A CN104724166 A CN 104724166A
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- steering cylinder
- hydraulic steering
- wheels
- cylinder
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
- B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
- B62D7/142—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering specially adapted for particular vehicles, e.g. tractors, carts, earth-moving vehicles, trucks
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D7/00—Steering linkage; Stub axles or their mountings
- B62D7/06—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins
- B62D7/14—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering
- B62D7/142—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering specially adapted for particular vehicles, e.g. tractors, carts, earth-moving vehicles, trucks
- B62D7/144—Steering linkage; Stub axles or their mountings for individually-pivoted wheels, e.g. on king-pins the pivotal axes being situated in more than one plane transverse to the longitudinal centre line of the vehicle, e.g. all-wheel steering specially adapted for particular vehicles, e.g. tractors, carts, earth-moving vehicles, trucks for vehicles with more than two axles
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention provides a hydraulic suspension heavy-load transportation vehicle. The hydraulic suspension heavy-load transportation vehicle comprises a vehicle body, an axle and wheels; a slewing bearing is arranged on the vehicle body; the slewing bearing comprises an inner ring and an outer ring; the inner ring and the outer ring are capable of rotating relatively; the outer ring is horizontally fixed on the vehicle body; a supporting seat is fixed in the inner ring; the vehicle further comprises a steering system; the steering system comprises a front wheel group and a rear wheel group; the front wheel group and the rear wheel group are driven by a steering hydraulic cylinder, respectively; the steering hydraulic cylinder is horizontally mounted on the vehicle body and hinged to a stirring crank arm; the stirring crank arm is fixedly connected to the top surface of the supporting seat; the supporting seat rotates along with the slewing bearing so as to drive the wheels to rotate; for steering, the wheels of the front wheel group all are deflected in the same direction, while the wheels of the rear wheel group all are deflected in other direction; the wheels of the vehicle run in the same moving trajectory, and therefore, the all-wheel steering of the vehicle is realized. The hydraulic suspension heavy-load transportation vehicle is capable of meeting the requirements of large logistics transportation due to a small turning radius and flexible turning; meanwhile, the cost is also reduced and the production efficiency is improved.
Description
Technical field
The present invention relates to a kind of transport trolley, particularly relate to a kind of hydraulic suspension heavy-load transport vehicle.
Background technology
At present, along with the raising of industrial sector, a lot of industrial circle, such as highway construction, railway construction, shipbuilding yard, steel mill and other large-scale component carrying place, all will use some special large-scale heavy duty transport vehicles to carry out large logistics transport.Heavily loaded logistics transportation is generally realized in the following manner: one is adopt rail transport, take rail locomotive as power, the transport of traction dedicated track vehicle, this mode needs the planning in fixed venue and the early stage of being correlated with, and the input cost realizing large logistics transport is in this way very large; Two is adopt trailer mode to realize large logistics transport, but due to the restriction of traction power and hitch structure, its dead-weight capacity is generally less than eight or nine ten tons, sometimes often can not meet the condition of large logistics transport, be subject to that road is stressed by trailer transport simultaneously, the restriction such as shipping yard and road turning radius, bring very large difficulty to relevant logistics hauling operation.So need a kind of transport load carrying ability large, affect less heavy-load transport vehicle by shipping yard.
Summary of the invention
The technical problem to be solved in the present invention is to provide the hydraulic suspension heavy-load transport vehicle that a kind of dead-weight capacity is large, radius of turn is little, to overcome the above-mentioned defect of prior art.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme: a kind of hydraulic suspension heavy-load transport vehicle, comprise vehicle body, vehicle bridge and wheel, described vehicle body is provided with pivoting support, pivoting support comprises inner ring and outer ring, described inner ring and outer ring can relatively rotate, described outer ring is horizontally fixed on vehicle body, supporting seat is fixed with in described inner ring, also comprise steering swivel system, described steering swivel system comprises anterior wheels and rear portion wheels, described anterior wheels and rear wheel group drive respectively by hydraulic steering cylinder, described hydraulic steering cylinder level to be arranged on vehicle body and with turn to connecting lever hinged, the described end face turning to connecting lever to be fixedly connected on supporting seat, supporting seat rotates along with pivoting support and then drives vehicle wheel rotation, when turning to, the wheel on anterior wheels all rotates to same direction, and the wheel on the wheels of rear portion all rotates to another direction.
Preferably, described anterior wheels comprise two axial lines vehicle bridge, two axial lines vehicle bridge connects front pivoting support and rear pivoting support respectively, before described, pivot arm is provided with between rear pivoting support, the middle part of described pivot arm is hinged on vehicle body, one end of pivot arm is hinged with the connecting lever that turns on connecting lever and rear pivoting support that turns on front pivoting support respectively by two steering track rods, the pivot arm other end is hinged with the connecting lever that turns on connecting lever and rear pivoting support that turns on front pivoting support respectively by two steering track rods, the hydraulic steering cylinder of anterior wheels comprises left front hydraulic steering cylinder and right front hydraulic steering cylinder, the cylinder body of two hydraulic steering cylinders is all hinged on vehicle body, the piston rod of two hydraulic steering cylinders is hinged with the two ends of pivot arm respectively, described rear portion wheels are identical with anterior wheel group structure, and driven by left back hydraulic steering cylinder and right back hydraulic steering cylinder.
Further, the cylinder body of the hydraulic steering cylinder of described anterior wheels and rear portion wheels is hinged on respectively between the pivoting support in extremities of body portion, and described hydraulic steering cylinder cylinder body is divided into rod chamber room and rodless cavity room.
Further, pipeline communication is passed through in the rod chamber room of described left front hydraulic steering cylinder and the rod chamber room of right back hydraulic steering cylinder, pipeline communication is passed through in the rodless cavity room of right back hydraulic steering cylinder and the rodless cavity room of right front hydraulic steering cylinder, pipeline communication is passed through in the rod chamber room of right front hydraulic steering cylinder and the rod chamber room of left back hydraulic steering cylinder, pipeline communication is passed through in the rodless cavity room of left back hydraulic steering cylinder and the rodless cavity room of left front hydraulic steering cylinder, the pipeline that the rodless cavity room of described right back hydraulic steering cylinder is communicated with the rodless cavity room of right front hydraulic steering cylinder is provided with the first hydraulic fluid port, the pipeline that the rodless cavity room of left back hydraulic steering cylinder is communicated with the rodless cavity room of left front hydraulic steering cylinder is provided with the second hydraulic fluid port.
Further, also comprise one and turn to aligning module, the described aligning module that turns to comprises the first repairing mouth, the second repairing mouth, pressure output and return opening, pipeline between the rod chamber room of described left front hydraulic steering cylinder and the rod chamber room of right back hydraulic steering cylinder connects the first repairing mouth, the pipeline between the rod chamber room of described right front hydraulic steering cylinder and the rod chamber room of left back hydraulic steering cylinder connects the second repairing mouth.
Further, have an axis at least for driving vehicle bridge in described anterior wheels and rear portion wheels, other axis are driven vehicle bridge.
Further, described driven vehicle bridge is equipped with brake equipment.
Preferably, described vehicle body is at least provided with an operator's compartment, be provided with electric control system equipment in described operator's compartment, described electric control system comprises the operating handle, master cock, PLC and the instrumentation that cooperatively interact and connect, and described steering swivel system is connected with electric control system.
Further, also comprise driving system, described driving system comprises the driving engine, coupler, auxiliary gear box, driving controllable capacity pump, differential locking-device control cock group, HM Hydraulic Motor and the wheel side speed reducer that connect successively, described HM Hydraulic Motor and wheel side speed reducer are installed in and drive in vehicle bridge, and described driving system is connected with electric control system.
Further, also comprise hydraulic lift system, described hydraulic lift system comprises the first strut bar, the second strut bar and lifting hydraulic cylinder, one end of described first strut bar is arranged on the bottom surface of supporting seat, the other end of described first strut bar and one end of the second strut bar hinged, the other end of the second strut bar and the vehicle bridge of transport trolley are hinged, the cylinder body of described lifting hydraulic cylinder is hinged on the bottom surface of supporting seat, the piston rod of lifting hydraulic cylinder and the middle part of the second strut bar are hinged, and described hydraulic lift system is connected with electric control system.
As mentioned above, device of the present invention, has following beneficial effect:
A kind of hydraulic suspension heavy-load transport vehicle of the present invention, solve the needs of large logistics flexible transport, its dead-weight capacity scope is 40 tons to 300 tons, self has driving power, and because the beat direction of the wheel when turning on anterior wheels and the wheel on the wheels of rear portion is contrary, wheel of vehicle travels along same running orbit, realizing the four-wheel steering of vehicle, making transport trolley have less Turning radius when turning, and turn to flexibly, affect less by road conditions, commonality is better; And the present invention also reduces cost while realizing large logistics transport, improves production efficiency.
Accompanying drawing explanation
Fig. 1 is constructional drawing of the present invention.
Fig. 2 is the constructional drawing of steering swivel system in the present invention.
Fig. 3 is the control principle drawing of steering swivel system in the present invention.
Fig. 4 is the constructional drawing of hydraulic suspension in the present invention.
Fig. 5 is driving system control principle drawing in the present invention.
In figure: 1 vehicle body 11 wheel
12 operator'ies compartment 13 drive vehicle bridge
14 driven vehicle bridge 15 brake equipments
21 inner ring 22 outer rings
Pivoting support before pivoting support 24 before 23
Pivoting support after pivoting support 26 after 25
31 first strut bar 32 second strut bars
33 supporting seat 34 lifting hydraulic cylinders
41 turn to connecting lever 42 pivot arm
The left front hydraulic steering cylinder of 43 steering track rod 44
The left back hydraulic steering cylinder of 45 right front hydraulic steering cylinder 46
47 right back hydraulic steering cylinder 51 first hydraulic fluid ports
52 second hydraulic fluid ports 6 turn to aligning module
61 first repairing mouth 62 second repairing mouths
63 pressure output 64 return openings
71 first drive controllable capacity pump 72 second to drive controllable capacity pump
73 differential locking-device control cock group 74 first HM Hydraulic Motor
75 second HM Hydraulic Motor 76 the 3rd HM Hydraulic Motor
77 the 4th HM Hydraulic Motor
Detailed description of the invention
The structure that Figure of description illustrates, ratio, size etc., content all only in order to coordinate specification sheets to disclose, understand for person skilled in the art scholar and read, and be not used to limit the enforceable qualifications of the present invention, therefore the not technical essential meaning of tool, the adjustment of the modification of any structure, the change of proportionate relationship or size, is not affecting under effect that the present invention can produce and the object that can reach, and all should still drop in scope that disclosed technology contents can contain.Simultaneously, quote in this specification sheets as " on ", D score, "front", "rear", the term such as " centre ", also only for ease of understanding of describing, and be not used to limit the enforceable scope of the present invention, the change of its relativeness or adjustment, under changing technology contents without essence, when being also considered as the enforceable category of the present invention.
Be a kind of hydraulic suspension heavy-load transport vehicle of the present invention as shown in Figure 1 and Figure 4, comprise vehicle body 1, vehicle bridge and wheel 11, described vehicle body 1 is provided with pivoting support, pivoting support comprises inner ring 21 and outer ring 22, described inner ring 21 and outer ring 22 can relatively rotate, described outer ring 22 is horizontally fixed on vehicle body 1, supporting seat 33 is fixed with in described inner ring 21, also comprise steering swivel system, described steering swivel system comprises anterior wheels and rear portion wheels, described anterior wheels and rear wheel group drive respectively by hydraulic steering cylinder, described hydraulic steering cylinder level to be arranged on vehicle body 1 and with turn to connecting lever 41 hinged, the described end face turning to connecting lever 41 to be fixedly connected on supporting seat 33, the bottom surface of supporting seat 33 is connected with vehicle bridge, wheel 11 is arranged in vehicle bridge, rotate along with pivoting support and then be with motor car wheel 11 to rotate, when turning to, the wheel on anterior wheels is all to same direction beat, and the wheel on the wheels of rear portion is all to another direction beat, and wheel of vehicle 11 travels along same running orbit, realizes the four-wheel steering of vehicle.Pivoting support is driven to have various ways by hydraulic steering cylinder, such as each pivoting support is all by turning to the piston rod of connecting lever 41 and a hydraulic steering cylinder to be hinged, the concrete installation site of hydraulic steering cylinder can be determined as the case may be, as long as ensure that all wheels 11 when transport trolley is turned on anterior wheels are contrary with all wheels 11 beat on the wheels of rear portion, so just can reduce the turn radius of transport trolley by actv., the motion of transport trolley is limited by place more flexibly, not.Described hydraulic steering cylinder is controlled by steering hydraulic system.
Composition graphs 1 and as Fig. 2 be the one preferably embodiment of the present embodiment, described anterior wheels comprise two axial lines vehicle bridge, two axial lines vehicle bridge connects front pivoting support 23 respectively, 24 and rear pivoting support 25, 26, before described, rear pivoting support 23, 24, 25, pivot arm 42 is provided with between 26, the middle part of described pivot arm 42 is hinged on vehicle body 1, one end of pivot arm 42 is hinged with the connecting lever 41 that turns on connecting lever 41 and rear pivoting support 25 that turns on front pivoting support 23 respectively by two steering track rods 43, pivot arm 42 other end is hinged with the connecting lever 41 that turns on connecting lever 41 and rear pivoting support 26 that turns on front pivoting support 24 respectively by two steering track rods 43, the hydraulic steering cylinder of anterior wheels comprises left front hydraulic steering cylinder 44 and right front hydraulic steering cylinder 45, the cylinder body of two hydraulic steering cylinders is all hinged on front pivoting support 23, 24 or rear pivoting support 25, on vehicle body 1 between 26, the piston rod of two hydraulic steering cylinders is hinged with the two ends of pivot arm 42 respectively, described rear portion wheels are identical with anterior wheel group structure, and driven by left back hydraulic steering cylinder 46 and right back hydraulic steering cylinder 47.Can rotate by driven rotary arm 42 when piston rod does fore and aft motion, pivot arm 42 makes to turn to connecting lever 41 and supporting seat 33 to rotate by steering track rod 43, and as shown in Figure 4, the rotation of supporting seat 33 can realize the beat of wheel 11, reaches with this object turned to.The cylinder body position of above-mentioned hydraulic steering cylinder can be installed in different positions according to actual conditions, and above-mentioned installation method is one preferably mount scheme.
Preferably, the cylinder body of the hydraulic steering cylinder of described anterior wheels and rear portion wheels can be hinged on the front and rear of vehicle body 1 as required respectively, preferred in the present embodiment, described cylinder body is between two pivoting supports at vehicle body 1 both ends, and described hydraulic steering cylinder cylinder body is divided into rod chamber room and rodless cavity room.
Composition graphs 2 and Fig. 3, in the present embodiment: pipeline communication is passed through in the described rod chamber room of left front hydraulic steering cylinder 44 and the rod chamber room of right back hydraulic steering cylinder 47, pipeline communication is passed through in the rodless cavity room of right back hydraulic steering cylinder 47 and the rodless cavity room of right front hydraulic steering cylinder 45, pipeline communication is passed through in the rod chamber room of right front hydraulic steering cylinder 45 and the rod chamber room of left back hydraulic steering cylinder 46, pipeline communication is passed through in the rodless cavity room of left back hydraulic steering cylinder 46 and the rodless cavity room of left front hydraulic steering cylinder 44, the pipeline that the rodless cavity room of described right back hydraulic steering cylinder 47 is communicated with the rodless cavity room of right front hydraulic steering cylinder 45 is provided with the first hydraulic fluid port 51, the pipeline that the rodless cavity room of left back hydraulic steering cylinder 46 is communicated with the rodless cavity room of left front hydraulic steering cylinder 44 is provided with the second hydraulic fluid port 52, the oil circuit of a circulation is defined thus between each hydraulic steering cylinder.
For left end in Fig. 2 for travel direction and turn left and composition graphs 3 and Fig. 4, control principle between above-mentioned hydraulic steering cylinder is: bearing circle is rotated through steering hydraulic system left and controls unlatching first hydraulic fluid port 51 feed liquor force feed, hydraulic oil enters the rodless cavity room of right front hydraulic steering cylinder 45 and right back hydraulic steering cylinder 47 respectively, the piston rod of right front hydraulic steering cylinder 45 is pushed out, because two of anterior wheels hydraulic steering cylinders are hinged by pivot arm 42, so the piston rod of left front hydraulic steering cylinder 44 can bounce back, pivot arm 42 can drive steering track rod 43 while rotating, steering track rod 43 drive again turn to connecting lever 41 to rotate and then to make anterior wheels two axial lines vehicle bridge on before, rear pivoting support 23, 24, 25, 26 rotate counterclockwise simultaneously, realize the beat left of anterior wheels entirety, along with the release of right front hydraulic steering cylinder 45 piston rod, the hydraulic oil in rod chamber room is flow into the rod chamber room of left back hydraulic steering cylinder 46, while right front hydraulic steering cylinder 45 piston rod is pushed out, the piston rod of right back hydraulic steering cylinder 47 is also pushed out, principle is the same, pivoting support in the wheels two axial lines vehicle bridge of rear portion is rotated clockwise simultaneously, realize the right-hand rotation of rear portion wheels, and the hydraulic oil of the rod chamber indoor of right back hydraulic steering cylinder 47 flow into the rod chamber room of left front hydraulic steering cylinder 44, rotate while further promoting anterior wheels, rotate while the hydraulic oil in the above-mentioned rod chamber room flowing into left back hydraulic steering cylinder 46 also promotes rear portion wheels, the piston rod of above-mentioned left front hydraulic steering cylinder 44 and left back hydraulic steering cylinder 46 is because the effect of pivot arm 42 is all retracted according to certain speed, and the hydraulic oil of left front hydraulic steering cylinder 44 and left back hydraulic steering cylinder 46 rodless cavity indoor is pushed back fuel tank by the second hydraulic fluid port 52 by the piston rod after retraction.Achieve the left-hand rotation of anterior wheels, the right-hand rotation of rear portion wheels by the motion of above-mentioned hydraulic oil, and then the left-hand rotation achieving car load travels.In like manner, when transport trolley is turned right, the second hydraulic fluid port 52 oil-feed, the first hydraulic fluid port 51 oil return, the right-hand rotation realizing car load travels.Make that wheel 11 on anterior wheels rotates to a direction by the effect of pivot arm 42 in the present embodiment simultaneously, wheel 11 on the wheels of rear portion is simultaneously to another direction beat, considerably increasing the harmony, the synchronism that turn to, making transport trolley more flexible when turning; That is, the overall coordinated movement of various economic factors that to be anterior wheels or rear portion wheels be all.
Above process be transport into normally travel time, the state of anterior wheels and rear portion wheels co-ordination, but it is large to consider that the present invention carries tonnage when reality uses, so may occur turning between anterior wheels and rear portion wheels inharmonious, the problem that when occurring turning to, traveling track is inconsistent, so find to occur that a major cause of this problem is that hydraulic steering cylinder rod chamber room has air to cause through the research of staff, so produced problem the present invention one also may be comprised turn to aligning module 6 to solve this, the described aligning module 6 that turns to comprises the first repairing mouth 61, second repairing mouth 62, pressure output 63 and return opening 64, pipeline between the rod chamber room of described left front hydraulic steering cylinder 44 and the rod chamber room of right back hydraulic steering cylinder 47 connects the first repairing mouth 61, pipeline between the rod chamber room of described right front hydraulic steering cylinder 45 and the rod chamber room of left back hydraulic steering cylinder 46 connects the second repairing mouth 62.Each hydraulic fluid port is equipped with control cock.In the present embodiment, this turns to the first repairing mouth 61 of aligning module 6 and the second repairing mouth 62 to be cut-offs when the anterior wheels of transport trolley and rear portion wheels co-ordination, when anterior wheels and rear portion wheels inharmonious time again by turn to aligning module 6 adjust, adjustment process and principle as follows: when anterior wheels and rear portion wheels inharmonious time be because enter air in the rod chamber room of certain hydraulic steering cylinder or multiple hydraulic steering cylinder, having air to enter primary piston bar just can not according to normal orbiting motion, so now response pressure delivery port 63, for first from the first repairing mouth 61 repairing, allow the first repairing of the first repairing mouth 61, because the effect transport trolley of hydraulic oil can turn to, now allow the second repairing mouth 62 oil-feed and stop the repairing of the first repairing mouth 61 again, unnecessary hydraulic oil can enter return opening 64 from the first repairing mouth 61 backflow, alternately control first repairing mouth 61 and the second repairing mouth 62 can discharge the air in rod chamber room, and then reach the stroke of piston rod under normal circumstances, also the object turning to aligning is just reached, make transport trolley can normal turn, above-mentioned first repairing mouth 61 and the second repairing mouth 62 are all controlled by respective control cock.When reaching leveling effect, pressure output 63 is closed, and the first repairing mouth 61 and the second repairing mouth 62 are also closed, and unnecessary hydraulic oil is discharged from return opening 64.Turning left or turning right is all the object that cooperation by controlling the first repairing mouth 61 and the second repairing mouth 62 simultaneously reaches aligning.
In the present embodiment, an axis is had at least for driving vehicle bridge 13 in described anterior wheels and rear portion wheels, other axis are driven vehicle bridge 14, preferably, the present embodiment comprises an axis drives vehicle bridge 13 and the driven vehicle bridge 14 of three axis, and further, described driven vehicle bridge 14 is equipped with brake equipment 15.More than just drive a kind of embodiment of vehicle bridge 13 and driven vehicle bridge 14, if load carrying ability can arrange greatly multiple driving vehicle bridge 13 and driven vehicle bridge 14, and drive the position of vehicle bridge 13 also to determine as the case may be.
Vehicle body 1 of the present invention is provided with at least one operator's compartment 12, electric control system is provided with in operator's compartment 12, described electric control system comprises the operating handle, master cock, PLC and the instrumentation that cooperatively interact and connect, and described steering swivel system is connected with electric control system.Further, because the present invention is applied in heavily loaded field, so for the ease of manipulation, described vehicle body 1 two ends can be respectively equipped with an operator's compartment 12, are equipped with electric control system equipment in described two operator'ies compartment 12.
Also driving system is comprised in the present embodiment, described driving system comprises the driving engine, coupler, auxiliary gear box, driving controllable capacity pump, differential locking-device control cock group 73, HM Hydraulic Motor and the wheel side speed reducer that connect successively, described HM Hydraulic Motor and wheel side speed reducer are installed in vehicle bridge, described vehicle bridge is provided with wheel 11, described driving system is also connected with electric control system.Control to drive controllable capacity pump and differential locking-device control cock group by electric control system, and then drive HM Hydraulic Motor work, HM Hydraulic Motor is once slowed down by reductor and by transmission of power to vehicle bridge and wheel 11, wheel 11 rotates, and then realizes the running movement of vehicle.Driving controllable capacity pump in native system is at least provided with two, controllable capacity pump is driven for two, as shown in Figure 5, first, second drives controllable capacity pump 71, 72 all by differential locking-device control cock group 73 and first, second, 3rd, 4th HM Hydraulic Motor 74, 75, 76, 77 are connected, each HM Hydraulic Motor is all connected with wheel by reductor, every two HM Hydraulic Motor are arranged in a vehicle bridge, generally two vehicle bridge are in the both sides of same axis vehicle bridge, described driving controllable capacity pump and HM Hydraulic Motor form closed fhdraulic system for whole transport trolley provides power, but to determine according to actual conditions at concrete installation method, such as driving system is first-class in two axial lines vehicle bridge respectively.Differential locking-device control cock group described is under normal circumstances conducting state, and namely first, second drives controllable capacity pump 71,72 to control first, second, third, fourth HM Hydraulic Motor 74,75,76,77 simultaneously.The effect of annexation is herein the normal traveling that can be ensured transport trolley when the wheel in certain HM Hydraulic Motor skids because of road surface reason by differential locking-device control cock group, its action principle is: when tyre skidding in certain HM Hydraulic Motor, because two drive controllable capacity pump and four HM Hydraulic Motor to be cooperatings, so can because flow and insufficient pressure cause wheel that transport trolley cannot be driven to travel in other HM Hydraulic Motor, now operating differential locking-device control cock group makes the first driving controllable capacity pump 71 control first separately, second HM Hydraulic Motor 74, 75, second drives controllable capacity pump 72 to control the 3rd separately, 4th HM Hydraulic Motor 76, 77, such whichever tyre skidding, can ensure that the wheel having at least two HM Hydraulic Motor to connect is normal work, therefore transport trolley can normally travel until by skidding region, by operating differential locking-device control cock group behind skidding region to initial condition.
Described driving system comprises two kinds of master modes, i.e. low gear and high speed gear (comprise and moving forward and backward), in these two grades of master modes, be provided with a master cock, and this switch is controlled by private key or additive method controls, such as cipher control.Conveniently vehicle operators adopts private key to control to the driving of vehicle in the present embodiment, namely when this master cock access failure, chaufeur only can realize low gear to transport trolley and travel, and after the connection of this master cock, chaufeur can realize low gear to transport trolley and high speed gear two kinds of patterns travel.Simultaneously, for realizing safe in operation, at transport trolley less than being enough to lower a period of time, also cannot travel after transport trolley engage a gear, namely holding brake device 15 is not removed, brake system air pressure do not reach a safety value (being generally 4bar, 1bar=100KPa), and now transport trolley needs again to hang neutral gear, after above-mentioned two conditions meet, again hang up advance or retreat shelves transport trolley and could normally travel.
The present invention also comprises hydraulic lift system, as shown in Figure 4, described hydraulic lift system comprises the first strut bar 31, second strut bar 32 and lifting hydraulic cylinder 34, one end of described first strut bar 31 is arranged on the bottom surface of a supporting seat 33, described supporting seat 33 is fixedly connected on the inner ring 21 of pivoting support, the other end of described first strut bar 31 and one end of the second strut bar 32 hinged, the other end of the second strut bar 32 and the vehicle bridge of transport trolley are hinged, the cylinder body of described lifting hydraulic cylinder 34 is hinged on the bottom surface of supporting seat 33, the piston rod of lifting hydraulic cylinder 34 and the middle part of the second strut bar 32 are hinged.When the piston rod of lifting hydraulic cylinder 34 stretches out, the distance of wheel 11 and vehicle body 1 increases, and realizes the lifting of vehicle body 1; Piston rod retraction realizes the decline of vehicle body 1.Native system is connected with electric control system.
By lifting hydraulic cylinder 34, lifting support and integral elevating support separately as required in the present invention, two kinds of patterns are had during concrete operations, one is synchronous lifting (or decline) pattern, by operating corresponding synchronous operation handle, synchronous operation handle will send synchronous lifting (or decline) signal to PLC, PLC sends lifting (or decline) signal by giving all control cock groups simultaneously, control all lifting hydraulic cylinders 34 and carry out lifting (or decline), the synchronization lifting of vehicle can be realized; Another kind is single-point lifting pattern, left front hydraulic suspension is such as needed to support lifting, then left front single-point operating handle is pushed away forward, left front operating handle will send lifting signal to PLC, PLC will send lifting signal to left front control cock group, control left front lifting hydraulic cylinder 34 groups and carry out lifting, the lifting of the strong point of the correspondence position of vehicle can be realized, and then meet the needs of the actual lifting of transport trolley.
Above-mentioned steering swivel system, driving system and hydraulic lift system are controlled by electric control system unification according to the need of work of reality, co-ordination.
In sum, hydraulic suspension heavy-load transport vehicle of the present invention, can realize heavy haul transport, and Turning radius is little, convenient control.So the present invention effectively overcomes practical problemss more of the prior art thus has very high value and use meaning.
Above-mentioned embodiment is illustrative principle of the present invention and effect thereof only, but not for limiting the present invention.The present invention also has many aspects can improve under the prerequisite of overall thought, all without prejudice under spirit of the present invention and category, can modify above-described embodiment or change for person skilled in the art scholar.Therefore, such as have in art usually know the knowledgeable do not depart from complete under disclosed spirit and technological thought all equivalence modify or change, must be contained by claim of the present invention.
Claims (10)
1. a hydraulic suspension heavy-load transport vehicle, comprise vehicle body (1), vehicle bridge and wheel (11), described vehicle body (1) is provided with pivoting support, pivoting support comprises inner ring (21) and outer ring (22), described inner ring (21) and outer ring (22) can relatively rotate, described outer ring (22) is horizontally fixed on vehicle body (1), supporting seat (33) is fixed with in described inner ring (21), it is characterized in that: also comprise steering swivel system, described steering swivel system comprises anterior wheels and rear portion wheels, described anterior wheels and rear wheel group drive respectively by hydraulic steering cylinder, described hydraulic steering cylinder level is arranged on the upper and piston rod of vehicle body (1) and turns to connecting lever (41) hinged, the described end face turning to connecting lever (41) to be fixedly connected on supporting seat (33), the bottom surface of supporting seat (33) is connected with vehicle bridge, wheel (11) is arranged in vehicle bridge, along with pivoting support rotates and then band motor car wheel (11) rotation, when turning to, the wheel on anterior wheels is all to same direction beat, and the wheel on the wheels of rear portion is all to another direction beat.
2. hydraulic suspension heavy-load transport vehicle according to claim 1, it is characterized in that: described anterior wheels comprise two axial lines vehicle bridge, two axial lines vehicle bridge connects front pivoting support (23 respectively, 24) and rear pivoting support (25, 26), before described, rear pivoting support (23, 24, 25, 26) pivot arm (42) is provided with between, the middle part of described pivot arm (42) is hinged on vehicle body (1), one end of pivot arm (42) is hinged with the connecting lever (41) that turns on connecting lever (41) and rear pivoting support (25) that turns on front pivoting support (23) respectively by two steering track rods (43), pivot arm (42) other end is hinged with the connecting lever (41) that turns on connecting lever (41) and rear pivoting support (26) that turns on front pivoting support (24) respectively by two steering track rods (43), the hydraulic steering cylinder of anterior wheels comprises left front hydraulic steering cylinder (44) and right front hydraulic steering cylinder (45), the cylinder body of two hydraulic steering cylinders is all hinged on vehicle body (1), the piston rod of two hydraulic steering cylinders is hinged with the two ends of pivot arm (42) respectively, described rear portion wheels are identical with anterior wheel group structure, and driven by left back hydraulic steering cylinder (46) and right back hydraulic steering cylinder (47).
3. hydraulic suspension heavy-load transport vehicle according to claim 2, it is characterized in that: the cylinder body of the hydraulic steering cylinder of described anterior wheels and rear portion wheels is hinged on respectively between two pivoting supports at vehicle body (1) both ends, and described hydraulic steering cylinder cylinder body is divided into rod chamber room and rodless cavity room.
4. hydraulic suspension heavy-load transport vehicle according to claim 3, it is characterized in that: pipeline communication is passed through in the rod chamber room of described left front hydraulic steering cylinder (44) and the rod chamber room of right back hydraulic steering cylinder (47), pipeline communication is passed through in the rodless cavity room of right back hydraulic steering cylinder (47) and the rodless cavity room of right front hydraulic steering cylinder (45), pipeline communication is passed through in the rod chamber room of right front hydraulic steering cylinder (45) and the rod chamber room of left back hydraulic steering cylinder (46), pipeline communication is passed through in the rodless cavity room of left back hydraulic steering cylinder (46) and the rodless cavity room of left front hydraulic steering cylinder (44), the pipeline that the rodless cavity room of described right back hydraulic steering cylinder (47) is communicated with the rodless cavity room of right front hydraulic steering cylinder (45) is provided with the first hydraulic fluid port (51), the pipeline that the rodless cavity room of left back hydraulic steering cylinder (46) is communicated with the rodless cavity room of left front hydraulic steering cylinder (44) is provided with the second hydraulic fluid port (52).
5. hydraulic suspension heavy-load transport vehicle according to claim 4, it is characterized in that: also comprise one and turn to aligning module (6), described aligning module (6) that turns to comprises the first repairing mouth (61), second repairing mouth (62), pressure output (63) and return opening (64), pipeline between the rod chamber room of described left front hydraulic steering cylinder (44) and the rod chamber room of right back hydraulic steering cylinder (47) connects the first repairing mouth (61), pipeline between the rod chamber room of described right front hydraulic steering cylinder (45) and the rod chamber room of left back hydraulic steering cylinder (46) connects the second repairing mouth (62).
6. hydraulic suspension heavy-load transport vehicle according to claim 2, is characterized in that: have an axis at least for driving vehicle bridge (13) in described anterior wheels and rear portion wheels, other axis are driven vehicle bridge (14).
7. hydraulic suspension heavy-load transport vehicle according to claim 6, is characterized in that: described driven vehicle bridge (14) is equipped with brake equipment (15).
8. hydraulic suspension heavy-load transport vehicle according to claim 1, it is characterized in that: described vehicle body (1) is at least provided with an operator's compartment (12), described operator's compartment is provided with electric control system equipment in (12), described electric control system comprises the operating handle, master cock, PLC and the instrumentation that cooperatively interact and connect, and described steering swivel system is connected with electric control system.
9. hydraulic suspension heavy-load transport vehicle according to claim 8, it is characterized in that: also comprise driving system, described driving system comprises the driving engine, coupler, auxiliary gear box, driving controllable capacity pump, differential locking-device control cock group (73), HM Hydraulic Motor and the wheel side speed reducer that connect successively, described HM Hydraulic Motor and wheel side speed reducer are installed in and drive in vehicle bridge, and described driving system is connected with electric control system.
10. hydraulic suspension heavy-load transport vehicle according to claim 8, it is characterized in that: also comprise hydraulic lift system, described hydraulic lift system comprises the first strut bar (31), second strut bar (32) and lifting hydraulic cylinder (34), one end of described first strut bar (31) is arranged on the bottom surface of supporting seat (33), the other end of described first strut bar (31) and one end of the second strut bar (32) hinged, the other end of the second strut bar (32) and the vehicle bridge of transport trolley are hinged, the cylinder body of described lifting hydraulic cylinder (34) is hinged on the bottom surface of supporting seat (33), the piston rod of lifting hydraulic cylinder (34) and the middle part of the second strut bar (32) are hinged, described hydraulic lift system is connected with electric control system.
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| CN201310705653.5A CN104724166B (en) | 2013-12-19 | 2013-12-19 | Hydraulic suspension heavy-load transport vehicle |
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| CN107825927A (en) * | 2017-10-27 | 2018-03-23 | 合肥正浩机械科技有限公司 | A kind of efficiently damping type heavy type transport vehicle |
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| CN108725297A (en) * | 2018-07-10 | 2018-11-02 | 大连壹海科技有限公司 | Trackless transport vehicles for heavy-duty logistics systems |
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