CN106801688A - A kind of railless electric flatcar hydraulic power unit - Google Patents
A kind of railless electric flatcar hydraulic power unit Download PDFInfo
- Publication number
- CN106801688A CN106801688A CN201510838399.5A CN201510838399A CN106801688A CN 106801688 A CN106801688 A CN 106801688A CN 201510838399 A CN201510838399 A CN 201510838399A CN 106801688 A CN106801688 A CN 106801688A
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- China
- Prior art keywords
- gear pump
- control valve
- directional control
- solenoid directional
- power unit
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Abstract
The invention discloses a kind of railless electric flatcar hydraulic power unit, including steering system hydraulic system and brake system hydraulic system, the steering system hydraulic system includes the first fuel tank, first gear pump, first motor and the first solenoid directional control valve, the brake system hydraulic system includes the second fuel tank, second gear pump, second motor, second solenoid directional control valve, accumulator, low-voltage relay and high-voltage relay, first fuel tank and the first gear pump are connected, first motor and the first gear pump are connected, the oil inlet connection of the oil-out of the first gear pump and first solenoid directional control valve, the accumulator, low-voltage relay and high-voltage relay are arranged on the pipeline between the second gear pump and second solenoid directional control valve.The railless electric flatcar hydraulic power unit that the present invention is provided, noise is small, influences small to operating personnel.
Description
Technical field
The present invention relates to railless electric flatcar field, railless electric flatcar hydraulic power unit is particularly related to.
Background technology
Electric flat carriage, also known as electric flatbed tricycle, straddle carrier, electric motor-trolley, electric flatcar, chassis etc., it is heavy cargo transport vehicle in a kind of factory, this kind of vehicle have simple structure, easy to use, large carrying capacity, be not afraid of it is dirty be not afraid of pound, safeguard easily, long service life the features such as, because it is convenient, sturdy, economic, practical, easy to clean many advantages, such as, the first-selected means of transport as the frequent delivery weight of short distance fixed point between working shop of enterprise inside and factory building and factory building.Existing electric flat carriage is broadly divided into rail electric flat carriage and railless electric flatcar, run in the dedicated track that rail electric flat carriage must be laid on the ground, its transportation range, steering etc. are both limited by track length, therefore can only be used in certain scope, and according to track fixed circuit back and forth cross across, excessive track can cause traffic obstacle, transport inconvenience to limited space again in workshop or factory building.And railless electric flatcar does not limit rule and can freely walk and turn, easy to use and low cost.
However, the railless electric flatcar of prior art, common problem has：The noise of hydraulic power unit is big, big on operating personnel's influence.
The content of the invention
The invention aims to solve the problems, such as to be previously mentioned in above-mentioned background technology, there is provided a kind of noise is small, small railless electric flatcar hydraulic power unit is influenceed on operating personnel.
To achieve these goals, technical scheme is as follows：
A kind of railless electric flatcar hydraulic power unit,Including steering system hydraulic system and brake system hydraulic system,The steering system hydraulic system includes the first fuel tank,First gear pump,First motor and the first solenoid directional control valve,The brake system hydraulic system includes the second fuel tank,Second gear pump,Second motor,Second solenoid directional control valve,Accumulator,Low-voltage relay and high-voltage relay,First fuel tank and the first gear pump are connected,First motor and the first gear pump are connected,The oil inlet connection of the oil-out of the first gear pump and first solenoid directional control valve,Second fuel tank and the second gear pump are connected,Second motor and the second gear pump are connected,The oil inlet connection of the oil-out of the second gear pump and second solenoid directional control valve,The accumulator,Low-voltage relay and high-voltage relay are arranged on the pipeline between the second gear pump and second solenoid directional control valve.
Preferably, the first overflow valve is provided with the pipeline between the first gear pump and first solenoid directional control valve, the second overflow valve is provided with the pipeline between the second gear pump and second solenoid directional control valve.
Preferably, the left oil circuit and right oil circuit of first solenoid directional control valve are respectively connected with stacked unidirectional throttle valve.
Preferably, first pressure meter and first liquid level gauge are provided with the pipeline between the first gear pump and first solenoid directional control valve.
Preferably, second pressure meter and second liquid level gauge are provided with the pipeline between the second gear pump and second solenoid directional control valve.
Compared with prior art, the railless electric flatcar hydraulic power unit that the present invention is provided, noise is small, influences small to operating personnel.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, the accompanying drawing to be used needed for being described to embodiment below is briefly described, apparently, drawings in the following description are only some embodiments of the present invention, for those of ordinary skill in the art, without having to pay creative labor, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the structural representation of steering system hydraulic system in the present embodiment.
Fig. 2 is the structural representation of brake system hydraulic system in the present embodiment.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made belongs to the scope of protection of the invention.
Specific embodiment：
A kind of railless electric flatcar hydraulic power unit with reference to shown in Fig. 1-2,Including steering system hydraulic system and brake system hydraulic system,Steering system hydraulic system includes the first fuel tank 1,First gear pump 2,First motor 3 and the first solenoid directional control valve 4,Brake system hydraulic system includes the second fuel tank 5,Second gear pump 6,Second motor 7,Second solenoid directional control valve 8,Accumulator 9,Low-voltage relay 10 and high-voltage relay 11,First fuel tank 1 and first gear pump 2 are connected,First motor 3 and first gear pump 2 are connected,The oil inlet connection of the oil-out of first gear pump 2 and the first solenoid directional control valve 4,Second fuel tank 5 and second gear pump 6 are connected,Second motor 7 and second gear pump 6 are connected,The oil inlet connection of the oil-out of second gear pump 6 and the second solenoid directional control valve 8,Accumulator 9,Low-voltage relay 10 and high-voltage relay 11 are arranged on the pipeline between the solenoid directional control valve 8 of second gear pump 6 and second.
In the present embodiment, the first overflow valve 12 is provided with the pipeline between the solenoid directional control valve 4 of first gear pump 2 and first, the second overflow valve 13 is provided with the pipeline between the solenoid directional control valve 8 of second gear pump 6 and second.
In the present embodiment, the left oil circuit and right oil circuit of the first solenoid directional control valve 4 are respectively connected with stacked unidirectional throttle valve 14.
In the present embodiment, first pressure meter and first liquid level gauge are provided with the pipeline between the solenoid directional control valve 4 of first gear pump 2 and first.
In the present embodiment, second pressure meter and second liquid level gauge are provided with the pipeline between the solenoid directional control valve 8 of second gear pump 6 and second.
In the present embodiment, there is the flow speed control valve that dams below steering solenoid directional control valve, can be with the speed of service of control cylinder, the operation regulated the speed is such, if magnet coil A ends obtain electric, B mouthfuls has pressure oil output, if at this time wanting the speed of service of control cylinder, the choke valve screw of A magnet coils side will be adjusted, is adjusted to slow down clockwise, and be adjusted to accelerate counterclockwise.
In the present embodiment, there is pressure gauge display switch pressure gauge termination, display that clockwise can be in terms of closing presure.
In the present embodiment, the control of brake system motor will be controlled by high-low voltage relay, when the normally closed point of low tension switch and high-voltage switch gear is engaged, motor work, untill two opened points of pressure switch all close connection, at this moment hydraulic fluid pressure reaches external pressure oil output in system, for work of braking, after the normally closed point of two pressure switches is all engaged, illustrate that system pressure has already decreased to 50bar, motor is powered connection, and motor belt motor pump work sets up pressure.Magnetic valve obtains the external pressure oil output of electric meeting for braking, and magnetic valve power-off, the oil pressure in brake line is reduced to 0bar, and the automobile oil of stopping in pipeline can be returned in hydraulic oil container.
In the present embodiment, hydraulic power unit provides pressure oil liquid for the steering and brakes of vehicle, realizes steering and the braking function of hydraulic power unit of the present invention, and noise is small, influences small to operating personnel.
Presently preferred embodiments of the present invention is the foregoing is only, is not intended to limit the invention, all any modification, equivalents made within the scope of the present invention etc. should be included within the scope of the present invention.
Claims (5)
1. a kind of railless electric flatcar hydraulic power unit,It is characterized in that,Including steering system hydraulic system and brake system hydraulic system,The steering system hydraulic system includes the first fuel tank,First gear pump,First motor and the first solenoid directional control valve,The brake system hydraulic system includes the second fuel tank,Second gear pump,Second motor,Second solenoid directional control valve,Accumulator,Low-voltage relay and high-voltage relay,First fuel tank and the first gear pump are connected,First motor and the first gear pump are connected,The oil inlet connection of the oil-out of the first gear pump and first solenoid directional control valve,Second fuel tank and the second gear pump are connected,Second motor and the second gear pump are connected,The oil inlet connection of the oil-out of the second gear pump and second solenoid directional control valve,The accumulator,Low-voltage relay and high-voltage relay are arranged on the pipeline between the second gear pump and second solenoid directional control valve.
2. railless electric flatcar hydraulic power unit according to claim 1, it is characterized in that, the first overflow valve is provided with pipeline between the first gear pump and first solenoid directional control valve, the second overflow valve is provided with the pipeline between the second gear pump and second solenoid directional control valve.
3. railless electric flatcar hydraulic power unit according to claim 1, it is characterised in that the left oil circuit and right oil circuit of first solenoid directional control valve are respectively connected with stacked unidirectional throttle valve.
4. railless electric flatcar hydraulic power unit according to claim 1, it is characterised in that be provided with first pressure meter and first liquid level gauge on the pipeline between the first gear pump and first solenoid directional control valve.
5. railless electric flatcar hydraulic power unit according to claim 1, it is characterised in that be provided with second pressure meter and second liquid level gauge on the pipeline between the second gear pump and second solenoid directional control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510838399.5A CN106801688A (en) | 2015-11-26 | 2015-11-26 | A kind of railless electric flatcar hydraulic power unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510838399.5A CN106801688A (en) | 2015-11-26 | 2015-11-26 | A kind of railless electric flatcar hydraulic power unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106801688A true CN106801688A (en) | 2017-06-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510838399.5A Pending CN106801688A (en) | 2015-11-26 | 2015-11-26 | A kind of railless electric flatcar hydraulic power unit |
Country Status (1)
| Country | Link |
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| CN (1) | CN106801688A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5826487A (en) * | 1997-02-20 | 1998-10-27 | Caterpillar Inc. | Pressure control for a pair of parallel hydraulic circuits |
| WO2010020376A1 (en) * | 2008-08-20 | 2010-02-25 | Robert Bosch Gmbh | Device for providing a pressure for a hydraulic consumer and method for providing a pressure |
| CN201694389U (en) * | 2010-02-08 | 2011-01-05 | 哈尔滨飞机工业集团有限责任公司 | Hydraulic braking pressure supply device for airplane |
| CN202107021U (en) * | 2011-06-15 | 2012-01-11 | 上海海鹏特种车辆有限公司 | Axis vehicle hydraulic emergency steering device |
| CN102434502A (en) * | 2011-12-23 | 2012-05-02 | 四川大学 | Frequency-conversion pump controlled steering hydraulic system for loader |
| CN202319956U (en) * | 2011-12-05 | 2012-07-11 | 郑州新大方重工科技有限公司 | Pure-electric multi-mode steering flat car |
| CN104019161A (en) * | 2014-05-23 | 2014-09-03 | 焦作制动器股份有限公司 | Energy storage type brake |
| CN204355141U (en) * | 2014-12-01 | 2015-05-27 | 王勇 | A kind of railless electric flatcar |
-
2015
- 2015-11-26 CN CN201510838399.5A patent/CN106801688A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5826487A (en) * | 1997-02-20 | 1998-10-27 | Caterpillar Inc. | Pressure control for a pair of parallel hydraulic circuits |
| WO2010020376A1 (en) * | 2008-08-20 | 2010-02-25 | Robert Bosch Gmbh | Device for providing a pressure for a hydraulic consumer and method for providing a pressure |
| CN201694389U (en) * | 2010-02-08 | 2011-01-05 | 哈尔滨飞机工业集团有限责任公司 | Hydraulic braking pressure supply device for airplane |
| CN202107021U (en) * | 2011-06-15 | 2012-01-11 | 上海海鹏特种车辆有限公司 | Axis vehicle hydraulic emergency steering device |
| CN202319956U (en) * | 2011-12-05 | 2012-07-11 | 郑州新大方重工科技有限公司 | Pure-electric multi-mode steering flat car |
| CN102434502A (en) * | 2011-12-23 | 2012-05-02 | 四川大学 | Frequency-conversion pump controlled steering hydraulic system for loader |
| CN104019161A (en) * | 2014-05-23 | 2014-09-03 | 焦作制动器股份有限公司 | Energy storage type brake |
| CN204355141U (en) * | 2014-12-01 | 2015-05-27 | 王勇 | A kind of railless electric flatcar |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170606 |