CN201989579U - Hydraulic system of dual-purpose tractor for highways and railways - Google Patents
Hydraulic system of dual-purpose tractor for highways and railways Download PDFInfo
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- CN201989579U CN201989579U CN2011200796145U CN201120079614U CN201989579U CN 201989579 U CN201989579 U CN 201989579U CN 2011200796145 U CN2011200796145 U CN 2011200796145U CN 201120079614 U CN201120079614 U CN 201120079614U CN 201989579 U CN201989579 U CN 201989579U
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Abstract
The utility model relates to a hydraulic system of a dual-purpose tractor for highways and railways, which comprises an oil tank, a gear pump, a multichannel conversion valve, a railway rear axle lifting oil cylinder, a railway front axle lifting oil cylinder, a bidirectional hydraulic lock steering gear and a steering oil cylinder, wherein the multichannel conversion valve mainly comprises a main safety valve, a steering system overflow valve, a diverter valve, a pressure regulating valve, a railway front axle lifting conversion valve and a railway rear axle lifting conversion valve, wherein the railway front axle lifting conversion valve and the railway rear axle lifting conversion valve are connected in parallel, and all components are connected through an oil pipe. The hydraulic system of the dual-purpose tractor for the highways and the railways is simple, stable and safe; when the hydraulic system is used for the highways to drag cargoes, a railway front axle support device and a railway rear axle guide device are in a contraction state respectively, so that special hubs for the railways are lifted up above a road surface. When the hydraulic system is used for railway traction work, railway front axles are lifted to support bodywork, so that wheels arranged on highway steering front axles are separated from ground, the hubs for the railways come into contact with rails, and vehicles run along the rails under the driving of driving wheels.
Description
Technical field
The utility model belongs to highway or railway tractor truck technical field, is specifically related to the hydraulic efficiency pressure system of tractor truck.
Background technology
The normal traction car only works under highway or a kind of operating mode of railway.On-highway tractor only limits to highway and uses, and its hydraulic efficiency pressure system only is used for realizing turning to.And the rail traction car need not direction control, does not have hydraulic efficiency pressure system.Situation need design a road and rail double duty tractor according to the actual requirements, and this tractor truck requires promptly can be used for the highway traction, also can be used for rail traction.This kind of tractor truck is provided with four groups of vehicle bridge, be respectively that highway turns to propons, drive axle, railway to support propons, railway guiding back axle, highway turns to propons and drive axle that the road vehicle wheel is housed, and on Biodge device and the railway guiding back Biodge device the special-purpose wheel hub of railway is housed before railway supports.When drawing on highway, the road vehicle wheel that highway turns to propons and drive axle to install lands, and railway supports propons and railway guiding railway that back axle is installed is packed up with wheel hub, breaks away from ground, equally works with tractor truck with average highway; When working on the railway, the road vehicle wheel that drive axle is installed lands, the road vehicle that highway turns to propons to install is taken turns supported disengaging road surface, and the railway that railway support propons, railway guiding back axle are installed contacts with rail with wheel hub, and vehicle travels at the driving lower edge of drive wheel rail.At this kind of tractor truck, designed the specific hydraulic system.
Summary of the invention
Promptly can be used for the highway traction in order to satisfy tractor truck, also can be used for rail traction; The utility model provides the hydraulic efficiency pressure system of two kinds of tractor trucks of a kind of road and rail.
A kind of hydraulic efficiency pressure system of road and rail double duty tractor, comprise fuel tank 1, oil return oil filter 2, oil suction oil filter 3, gear type pump 4, multiple directional control valve 5, hydraulic control one-way valve 10, railway back axle lift oil tank 11, railway propons lift oil tank 12, one-way throttle valve 13, bidirectional hydraulic lock 14, deflector 15, turn to oil cylinder 16, connect by oil pipe between the described each several part;
Described multiple directional control valve 5 mainly comprises main safety valve 6, steering swivel system by pass valve 7, flow divider valve 8, pressure regulating valve 9, railway propons change-over valve 17 and the railway back axle change-over valve 18 that hoists that hoists; Wherein railway propons change-over valve 17 and the railway back axle change-over valve 18 that hoists that hoists is connected in parallel;
The oil suction of gear type pump 4 communicates with fuel tank 1 by oil suction filter 3, and oil outlet connects the P mouth of multiple directional control valve 5; The P mouth of multiple directional control valve 5 is being communicated with flow divider valve 8, be divided into two-way through flow divider valve 8, one the tunnel is connected through the PF of multiple directional control valve 5 mouth and deflector 15 P ' mouthful, and another road and the railway propons that is connected in parallel the hoist oil inlet of change-over valve 18 of change-over valve 17 and railway back axle that hoists links to each other; The A mouth of described deflector 15, B mouth are connected to two chambeies that turn to oil cylinder 16, and the return opening of deflector 15 is connected to fuel tank 1;
The described railway propons change-over valve 17 that hoists is automatically reset three six-way transfer valves of formula of spring, and commutation first actuator port A1, the preceding commutation second actuator port B1 are connecting P1 mouth, the P2 mouth of bidirectional hydraulic lock 14 respectively before it; The first actuator port C of bidirectional hydraulic lock 14 is by the rod chamber of one-way throttle valve 13 connection railway propons lift oil tanks 12, and the second actuator port D of bidirectional hydraulic lock 14 links to each other with the rodless cavity of propons lift oil tank 12; The commutation that hoists of described railway back axle 18 is three six-way transfer valves of steel ball locate mode, thereafter the commutate first actuator port A2, the back commutation second actuator port B2 connects the rodless cavity and the rod chamber of railway back axle lift oil tank 11 respectively by hydraulic control one-way valve 10, the railway back axle hoists and also is parallel with pressure regulating valve 9 on the back commutation first actuator port A2 place oil circuit of change-over valve 18, and the oil outlet of pressure regulating valve 9 communicates with back oil road T;
Be provided with system's main safety valve 6 and steering swivel system by pass valve 7 in the described multiple directional control valve 5, an end of main safety valve 6 is communicated with the P mouth of multiple directional control valve 5, and the other end communicates with the back oil road T of multiple directional control valve 5; One end of steering swivel system by pass valve 7 communicates with the control oil channel of flow divider valve 8, and the other end communicates with the back oil road T of multiple directional control valve 5.
Useful technique effect of the present utility model embodies in the following areas:
1. hydraulic efficiency pressure system of the present utility model is simple, stable, safety, is used to realize that tractor truck switches use under the operating mode of two kinds of tractions on highway and the railway.
2. in the hoisting circuit of railway propons, be provided with bidirectional hydraulic lock, both can have guaranteed that railway supports the assurance car body of propons under holding state and do not sink, also can guarantee after the railway propons is packed up, can not produce downslide because of deadweight.
3. in the hoisting circuit of railway back axle, be provided with hydraulic control one-way valve, can guarantee after back axle is packed up, can not produce downslide because of deadweight.
4. the operation railway back axle change-over valve that hoists is provided with pressure adjustment relief valve, it is 1MPa that oil pressure relief is set, and being provided with the steel ball inhibiting device, this kind configuration makes the railway back axle that wheel hub is installed and can be pressed on the rail when railway is worked, and can prevent to cause the wheel hub derailing because of the driving road surface is uneven.
Description of drawings
Fig. 1 is the utility model structural representation.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described by embodiment.
Embodiment:
Referring to Fig. 1, a kind of hydraulic efficiency pressure system of road and rail double duty tractor comprises fuel tank 1, oil return oil filter 2, oil suction oil filter 3, gear type pump 4, multiple directional control valve 5, hydraulic control one-way valve 10, railway back axle lift oil tank 11, railway propons lift oil tank 12, one-way throttle valve 13, bidirectional hydraulic lock 14, deflector 15, turns to oil cylinder 16, connects by oil pipe between the described each several part.
Multiple directional control valve 5 mainly comprises main safety valve 6, steering swivel system by pass valve 7, flow divider valve 8, pressure regulating valve 9, railway propons change-over valve 17 and the railway back axle change-over valve 18 that hoists that hoists; Wherein railway propons change-over valve 17 and the railway back axle change-over valve 18 that hoists that hoists is connected in parallel.
The oil suction of gear type pump 4 communicates with fuel tank 1 by oil suction filter 3, and oil outlet connects the P mouth of multiple directional control valve 5; The P mouth of multiple directional control valve 5 is being communicated with flow divider valve 8, be divided into two-way through flow divider valve 8, one the tunnel is connected through the PF of multiple directional control valve 5 mouth and deflector 15 P ' mouthful, and another road and the railway propons that is connected in parallel the hoist oil inlet of change-over valve 18 of change-over valve 17 and railway back axle that hoists links to each other; The A mouth of described deflector 15, B mouth are connected to two chambeies that turn to oil cylinder 16, and the return opening of deflector 15 is connected to fuel tank 1.
The described railway propons change-over valve 17 that hoists is automatically reset three six-way transfer valves of formula of spring, and commutation first actuator port A1, the preceding commutation second actuator port B1 are connecting P1 mouth, the P2 mouth of bidirectional hydraulic lock 14 respectively before it; The first actuator port C of bidirectional hydraulic lock 14 is by the rod chamber of one-way throttle valve 13 connection railway propons lift oil tanks 12, and the second actuator port D of bidirectional hydraulic lock 14 links to each other with the rodless cavity of propons lift oil tank 12; The described railway back axle change-over valve 18 that hoists is three six-way transfer valves of steel ball locate mode, thereafter the commutate first actuator port A2, the back commutation second actuator port B2 connects the rodless cavity and the rod chamber of railway back axle lift oil tank 11 respectively by hydraulic control one-way valve 10, the railway back axle hoists and also is parallel with pressure regulating valve 9 on the back commutation first actuator port A2 place oil circuit of change-over valve 18, and the oil outlet of pressure regulating valve 9 communicates with back oil road T.
Be provided with system's main safety valve 6 and steering swivel system by pass valve 7 in the described multiple directional control valve 5.One end of main safety valve 6 is communicated with the P mouth of multiple directional control valve 5, and the other end communicates with the back oil road T of multiple directional control valve 5; One end of steering swivel system by pass valve 7 communicates with the control oil channel of flow divider valve 8, and the other end communicates with the back oil road T of multiple directional control valve 5.Main safety valve 6 limits the maximum working pressure of gear type pump 4, and steering swivel system by pass valve 7 is the top pressures that limit steering swivel system.
Described bidirectional hydraulic lock 14 and hydraulic control one-way valve 10 play pressurize and anti-leak in system, prevent that the car body that back axle lift oil tank 11 and propons lift oil tank 12 support from sinking owing to conducting oneself with dignity.One-way throttle valve 13 is lifting velocities of regulating propons lift oil tank 12.
Concrete principle of work is as follows: when tractor truck drew goods on highway, Biodge device and railway guiding back Biodge device were in contraction state before railway supported, and made the special-purpose wheel hub of railway be lifted away to more than the road surface.At this moment gear type pump 4 from hydraulic oil from fuel tank 1 through 3 oil suctions of oil suction oil filter, the pressure oil of output enters the P mouth of multiple directional control valve 5, flow divider valve 8 in multiple directional control valve 5 is divided into two-way, and one the tunnel flows to deflector 15 with base runoff through the PF of multiple directional control valve 5 mouth drives oil cylinder 16 work that turn to; Railway propons change-over valve 17 and railway back axle change-over valve 18 that hoists that hoists is supplied with on another road, owing to be the highway traction state, hydraulic oil flows back to fuel tank 1 through oil return oil filter 2 by railway propons the hoist meta of change-over valve 18 of change-over valve 17 and railway back axle that hoists again through the back oil road T of multiple directional control valve 5.
When vehicle need be when highway traction changes into rail traction work, need carry out the operation of two steps: the first step, operation railway propons hoists change-over valve 17 in the right position of commutation work, hydraulic oil is through the propons P1 mouth of change-over valve A1 mouth to bidirectional hydraulic lock 14 that hoist, again from the C mouth of bidirectional hydraulic lock 14 through the rod chamber of one-way throttle valve 13 to propons lift oil tank 12, realize hoisting of railway propons, support car body, the wheel that makes highway turn to propons to install breaks away from ground, the highway steering operation is ineffective, has avoided the highway steering operation to have influence on vehicle and has worked on the railway.When propons lift oil tank 12 is worked maximum travel position, unclamp the hoist manipulation of change-over valve 17 of railway propons, change-over valve returns meta automatically, and hydraulic oil flows back to fuel tank 1 by the back oil road T and the oil return oil filter 2 of multiple directional control valve 5.Because car body deadweight and oil liquid leakage cause car body to sink, in the hoisting circuit of railway propons, be provided with bidirectional hydraulic lock 14 for avoiding.In second step, operation railway back axle hoists change-over valve 18 in the right position of commutation work, and hydraulic oil hoists the A2 mouth, hydraulic control one-way valve 10 of change-over valve 18 to back axle lift oil tank 11 through the railway back axle, realizes putting down of railway back axle.The railway back axle change-over valve 18 that hoists is provided with pressure regulating valve 9, and it is 1MPa that oil pressure relief is set, guarantee that railway back axle installation wheel hub has certain predetermincd tension to be pressed on the rail, make the railway back axle only play directional tagging, because of the railway back axle change-over valve 18 that hoists is the reversing maneuver mode of steel ball locate mode, change-over valve 18 still is operated in right position so unclamp operation, railway back axle hoist.
When vehicle need be when rail traction changes into highway traction work, also need to carry out the operation of two steps: the first step, operation railway propons hoists change-over valve 17 in position, a commutation work left side, hydraulic oil hoists the B1 mouth of change-over valve 17 to the P2 mouth of bidirectional hydraulic lock 14 through the railway propons, again from the D mouth of bidirectional hydraulic lock 14 through one-way throttle valve 13 to propons lift oil tank 12, make the preceding Biodge device of railway pack up, the wheel that highway turns to propons to install lands.Unclamp the hoist manipulation of change-over valve 17 of railway propons, change-over valve returns meta automatically, and hydraulic oil flows back to fuel tank 1 by the back oil road T and the return filter 2 of multiple directional control valve 5.Owing in the hoisting circuit of railway propons, be provided with bidirectional hydraulic lock 14, guaranteed that the railway propons of packing up can not fall because of deadweight.In second step, operation railway back axle hoists change-over valve 18 in position, a commutation work left side, and hydraulic oil hoists change-over valve B2 mouth, hydraulic control one-way valve 10 to back axle lift oil tank 11 through back axle, realizes packing up of railway back axle.Arrive range when oil cylinder work, operate the railway back axle and hoist change-over valve 18 in meta, hydraulic oil flows back to fuel tank 1 by the back oil road T and the return filter 2 of multiple directional control valve 5.Owing in the hoisting circuit of railway back axle, be provided with hydraulic control one-way valve 10, guaranteed that the railway back axle of packing up can not fall because of deadweight.
Claims (1)
1. the hydraulic efficiency pressure system of a road and rail double duty tractor, comprise fuel tank (1), oil return oil filter (2), oil suction oil filter (3), gear type pump (4), multiple directional control valve (5), hydraulic control one-way valve (10), railway back axle lift oil tank (11), railway propons lift oil tank (12), one-way throttle valve (13), bidirectional hydraulic lock (14), deflector (15), turn to oil cylinder (16), connect by oil pipe between the described each several part; It is characterized in that:
Described multiple directional control valve (5) mainly comprises main safety valve (6), steering swivel system by pass valve (7), flow divider valve (8), pressure regulating valve (9), railway propons change-over valve (17) and the railway back axle change-over valve (18) that hoists that hoists; Wherein railway propons change-over valve (17) and the railway back axle change-over valve (18) that hoists that hoists is connected in parallel;
The oil suction of gear type pump (4) communicates with fuel tank (1) by oil suction filter (3), and oil outlet connects the P mouth of multiple directional control valve (5); The P mouth of multiple directional control valve (5) is being communicated with flow divider valve (8), be divided into two-way through flow divider valve (8), one the tunnel is connected through with deflector (15) P ' mouthful of the PF mouth of multiple directional control valve (5), and another road and the railway propons that is connected in parallel the hoist oil inlet of change-over valve (18) of change-over valve (17) and railway back axle that hoists links to each other; The A mouth of described deflector (15), B mouth are connected to two chambeies that turn to oil cylinder 16, and the return opening of deflector (15) is connected to fuel tank 1;
The described railway propons change-over valve (17) that hoists is automatically reset three six-way transfer valves of formula of spring, and commutation first actuator port A1, the preceding commutation second actuator port B1 are connecting P1 mouth, the P2 mouth of bidirectional hydraulic lock (14) respectively before it; The first actuator port C of bidirectional hydraulic lock (14) is by the rod chamber of one-way throttle valve (13) connection railway propons lift oil tank (12), and the second actuator port D of bidirectional hydraulic lock (14) links to each other with the rodless cavity of propons lift oil tank (12); The commutation (18) that hoists of described railway back axle is three six-way transfer valves of steel ball locate mode, thereafter the commutate first actuator port A2, the back commutation second actuator port B2 connects the rodless cavity and the rod chamber of railway back axle lift oil tank (11) respectively by hydraulic control one-way valve (10), the railway back axle hoists and also is parallel with pressure regulating valve (9) on the back commutation first actuator port A2 place oil circuit of change-over valve (18), and the oil outlet of pressure regulating valve (9) communicates with back oil road T;
Be provided with system's main safety valve (6) and steering swivel system by pass valve (7) in the described multiple directional control valve (5), an end of main safety valve (6) is communicated with the P mouth of multiple directional control valve (5), and the other end communicates with the back oil road T of multiple directional control valve (5); One end of steering swivel system by pass valve (7) communicates with the control oil channel of flow divider valve (8), and the other end communicates with the back oil road T of multiple directional control valve (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200796145U CN201989579U (en) | 2011-03-24 | 2011-03-24 | Hydraulic system of dual-purpose tractor for highways and railways |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200796145U CN201989579U (en) | 2011-03-24 | 2011-03-24 | Hydraulic system of dual-purpose tractor for highways and railways |
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| Publication Number | Publication Date |
|---|---|
| CN201989579U true CN201989579U (en) | 2011-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200796145U Expired - Lifetime CN201989579U (en) | 2011-03-24 | 2011-03-24 | Hydraulic system of dual-purpose tractor for highways and railways |
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| CN (1) | CN201989579U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922965A (en) * | 2012-11-22 | 2013-02-13 | 中联重科股份有限公司 | Railway tractor and control method, device and system thereof |
| CN106698282A (en) * | 2017-03-23 | 2017-05-24 | 陕西奥力信工程机械有限公司 | Hydraulic system of double-working-platform overhead working truck for road-railway dual purposes |
| CN107856623A (en) * | 2017-10-10 | 2018-03-30 | 山东东大工程机械有限公司 | Combined operator on the tractor driving monitoring device and the method for driving monitoring |
| CN109398004A (en) * | 2018-11-29 | 2019-03-01 | 襄阳协利成机车车辆工程设备有限公司 | Railway bogie and road rail vehicle walking system |
| CN109681483A (en) * | 2019-02-19 | 2019-04-26 | 中国铁建重工集团有限公司 | Hydraulic system and vehicle |
| CN113335002A (en) * | 2021-08-05 | 2021-09-03 | 山东威猛工程机械有限公司 | Steering hydraulic system of highway and railway dual-purpose engineering machinery |
-
2011
- 2011-03-24 CN CN2011200796145U patent/CN201989579U/en not_active Expired - Lifetime
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102922965A (en) * | 2012-11-22 | 2013-02-13 | 中联重科股份有限公司 | Railway tractor and control method, device and system thereof |
| CN106698282A (en) * | 2017-03-23 | 2017-05-24 | 陕西奥力信工程机械有限公司 | Hydraulic system of double-working-platform overhead working truck for road-railway dual purposes |
| CN106698282B (en) * | 2017-03-23 | 2022-10-11 | 陕西奥力信工程机械有限公司 | Hydraulic system of highway-railway dual-purpose double-working-platform aerial work vehicle |
| CN107856623A (en) * | 2017-10-10 | 2018-03-30 | 山东东大工程机械有限公司 | Combined operator on the tractor driving monitoring device and the method for driving monitoring |
| CN109398004A (en) * | 2018-11-29 | 2019-03-01 | 襄阳协利成机车车辆工程设备有限公司 | Railway bogie and road rail vehicle walking system |
| CN109398004B (en) * | 2018-11-29 | 2023-12-26 | 襄阳城雷机电工程有限公司 | Railway bogie and road and railway dual-purpose vehicle running system |
| CN109681483A (en) * | 2019-02-19 | 2019-04-26 | 中国铁建重工集团有限公司 | Hydraulic system and vehicle |
| CN113335002A (en) * | 2021-08-05 | 2021-09-03 | 山东威猛工程机械有限公司 | Steering hydraulic system of highway and railway dual-purpose engineering machinery |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110928 |