CN103062165B - Hydraulic power system and the application in new-energy automobile thereof - Google Patents
Hydraulic power system and the application in new-energy automobile thereof Download PDFInfo
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- CN103062165B CN103062165B CN201310009547.3A CN201310009547A CN103062165B CN 103062165 B CN103062165 B CN 103062165B CN 201310009547 A CN201310009547 A CN 201310009547A CN 103062165 B CN103062165 B CN 103062165B
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Abstract
The invention provides a kind of hydraulic power system and the application in new-energy automobile thereof, described hydraulic power system, it includes hydraulic power actuating device and hydraulic power control gear, described hydraulic power actuating device comprises motor, hydraulic gear pump and the first hydraulic jack, hydraulic gear pump described in described motoring, and and then make the first hydraulic jack execution work.Described hydraulic power control gear comprises hydraulic pressure switch, and described hydraulic pressure switch detects the oil pressure in hydraulic power actuating device, and turns off the power supply of described motor when it reaches predetermined threshold.The present invention by motoring hydraulic gear pump, and and then make hydraulic jack execution work, thus to realize the power resources of electrokinetic cell as hydraulic power system, and then realize the application of hydraulic power system in new-energy automobile.In addition, when hydraulic power actuating device performs certain position, make described motor stall, thus improve the utilization ratio of the energy.
Description
Technical field
The present invention relates to hydraulic system field, particularly a kind of hydraulic power system and the application in new-energy automobile thereof.
Background technique
The application of current hydraulic power unit on orthodox car provides power by motor, and its gasoline consumed or diesel oil not only consume the non-renewable petroleum-based energy of nature, also cause serious pollution to air.The operating rate of the executive component in hydraulic power unit is by change engine rotary speed thus the flow of change hydraulic system mesohigh oil realizes, and executive component work complete after cannot realize engine stop work, make motor and hydraulic power unit always in running order, waste energy, and reduce the working life of parts.
Therefore, be necessary that proposing a kind of new technological scheme solves the problems referred to above.
Summary of the invention
An object of the present invention is to provide a kind of hydraulic power system, and it can be driven by motor, and it can also improve the utilization ratio of the energy.
Two of object of the present invention is to provide a kind of new-energy automobile, and it adopts the hydraulic power system by motoring, can also improve the utilization ratio of the energy
According to an aspect of the present invention, the invention provides a kind of hydraulic power system, it includes hydraulic power actuating device and hydraulic power control gear.Described hydraulic power actuating device comprises motor, hydraulic gear pump and the first hydraulic jack, hydraulic gear pump described in described motoring, and and then makes the first hydraulic jack execution work.Described hydraulic power control gear comprises hydraulic pressure switch, and described hydraulic pressure switch detects the oil pressure in hydraulic power actuating device, and turns off the power supply of described motor when it reaches predetermined threshold.
Further, described hydraulic power control gear also comprises delayed relay, described hydraulic pressure switch triggers described delayed relay when oil pressure reaches predetermined threshold, described delayed relay cuts off the power supply of described motor afterwards via the triggering of described hydraulic pressure switch, and recovers to described motor after postponing scheduled duration.
Further, described hydraulic power actuating device also includes the second hydraulic jack and solenoid directional control valve, and described solenoid directional control valve comprises the first port be communicated with the first hydraulic jack, the second port be communicated with the second hydraulic jack, the 3rd port be communicated with described hydraulic gear pump, first group of coil and second group of coil.After first group of coil powers on, control the first port be communicated with the 3rd port, after second group of coil powers on, control the second port be communicated with the 3rd port, described delayed relay cuts off the power supply of described motor afterwards via the triggering of described hydraulic pressure switch, also can cut off the power supply of first group of coil and second group of coil simultaneously, recover to described motor after delay scheduled duration, also recover to first group of coil and second group of coil power supply.
Further, described hydraulic power control gear also comprises the first control switch, second control switch and interlock circuit, when first control switch is in working position, the conductive path conducting at conducting first group of coil and described motor place is powered to make them, when the first control switch is in off-position, cut off the power supply of first group of coil, when second control switch is in working position, the conductive path conducting at second group of coil and described motor place is powered to make them, when the second control switch is in off-position, cut off the power supply of second group of coil.Described interlock circuit makes, when first the first control switch is in working position, to cut off the conductive path at the second control switch place, when first the second control switch is in working position, cuts off the conductive path at the first control switch place.
Further, described interlock circuit comprise be series at the first control switch conductive path on the first relay, be series at the second relay on the conductive path of the second control switch, the first control access be connected with the control end of the first relay and the second control access be connected with the control end of the second relay, first relay and the second relay are all normally on, when the first control switch is first in working position, second control access controls the second relay and disconnects with the conductive path cutting off the second control switch, when the second control switch is first in working position, first control access controls the first relay and disconnects with the conductive path cutting off the first control switch.
Further, described hydraulic pressure switch detects the oil pressure between described hydraulic gear pump and described solenoid directional control valve, first hydraulic jack is torque arm oil cylinder, second hydraulic jack is locking cylinder, and described hydraulic power actuating device also comprises the two one-way throttle valves between the first hydraulic jack and described solenoid directional control valve, the damping hole between the second hydraulic jack and described reverse battery valve and relief valve.
According to another aspect of the present invention, the invention provides a kind of new-energy automobile, it compartment comprising hydraulic power system, provide the battery of power supply and driven by hydraulic power system to motor, wherein said motor provides power for described automobile.Hydraulic power system, it includes hydraulic power actuating device and hydraulic power control gear.Described hydraulic power actuating device comprises motor, hydraulic gear pump and the first hydraulic jack, hydraulic gear pump described in described motoring, and and then makes the first hydraulic jack execution work.Described hydraulic power control gear comprises hydraulic pressure switch, and described hydraulic pressure switch detects the oil pressure in hydraulic power actuating device, and turns off the power supply of described motor when it reaches predetermined threshold.
Compared with prior art, the present invention is by motoring hydraulic gear pump, and and then make hydraulic jack execution work, thus to realize the power resources of electrokinetic cell as hydraulic power system, and then realize the application of hydraulic power system in new-energy automobile.In addition, when hydraulic power actuating device performs certain position, make described motor stall, thus improve the utilization ratio of the energy.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.Wherein:
Fig. 1 is the structural representation of the hydraulic power actuating device of the present invention's hydraulic power system in one embodiment;
Fig. 2 is the circuit diagram of the hydraulic power control gear of the present invention's hydraulic power system in one embodiment.
Embodiment
For enabling above-mentioned purpose of the present invention, feature and advantage become apparent more, and below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
Alleged herein " embodiment " or " embodiment " refers to special characteristic, structure or the characteristic that can be contained at least one implementation of the present invention.Different local in this manual " in one embodiment " occurred not all refers to same embodiment, neither be independent or optionally mutually exclusive with other embodiments embodiment.
In one embodiment of the invention, hydraulic power system provided by the invention includes hydraulic power actuating device and hydraulic power control gear.Described hydraulic power actuating device comprises motor, hydraulic gear pump and the first hydraulic jack.Hydraulic gear pump described in described motoring, and and then make the first hydraulic jack execution work; Described hydraulic power control gear comprises hydraulic pressure switch, and described hydraulic pressure switch detects the oil pressure in hydraulic power actuating device, and turns off the power supply of described motor when it reaches predetermined threshold.Owing to passing through hydraulic gear pump described in motoring in the present invention.Therefore, using the power resources of electrokinetic cell as the hydraulic power system in the present invention, when oil pressure reaches predetermined threshold, can stop the work of described motor simultaneously, thus save electric energy.
In one embodiment, described hydraulic power control gear also comprises delayed relay, described hydraulic pressure switch triggers described delayed relay when oil pressure reaches predetermined threshold, described delayed relay cuts off the power supply of described motor afterwards via the triggering of described hydraulic pressure switch, and recovers to described motor after postponing scheduled duration.Like this, just can realize before starting to next working procedure after hydraulic jack work puts (or a working procedure completes) in place, described hydraulic power system is quit work a period of time automatically, thus save the energy consumption of described hydraulic power system, improve the working life of function element.
In one embodiment, described hydraulic power actuating device also includes the second hydraulic jack and solenoid directional control valve.Described solenoid directional control valve comprises the first port be communicated with the first hydraulic jack, the second port be communicated with the second hydraulic jack, the 3rd port be communicated with described hydraulic gear pump, first group of coil and second group of coil; After first group of coil powers on, control the first port be communicated with the 3rd port, after second group of coil powers on, control the second port be communicated with the 3rd port, described delayed relay cuts off the power supply of described motor afterwards via the triggering of described hydraulic pressure switch, also can cut off the power supply of first group of coil and second group of coil simultaneously, recover to described motor after delay scheduled duration, also recover to first group of coil and second group of coil power supply.It can by the job control of solenoid directional control valve realization to two hydraulic jacks.
In one embodiment, described hydraulic power control gear also comprises the first control switch, the second control switch and interlock circuit.When first control switch is in working position, the conductive path at conducting first group of coil and described motor place is powered to make them, when the first control switch is in off-position, cut off the power supply of first group of coil, when second control switch is in working position, the conductive path conducting at second group of coil and described motor place is powered to make them, when the second control switch is in off-position, cut off the power supply of second group of coil, described interlock circuit makes when first the first control switch is in working position, cut off the conductive path at the second control switch place, when first the second control switch is in working position, cut off the conductive path at the first control switch place.Like this, just can make the first hydraulic jack and the second hydraulic jack under the control of described hydraulic power control gear, realize interlocking, guarantee that two hydraulic jacks cannot work simultaneously, the safety of equipment and personnel is ensured reliably.
For the ease of understanding the present invention, specifically introduce the hydraulic power system in the present invention below by way of Fig. 1 and Fig. 2.
First, please refer to shown in Fig. 1, it is the structural representation of the hydraulic power actuating device in the present invention's hydraulic power system in one embodiment.Described hydraulic power actuating device comprises torque arm oil cylinder (also can be called as the first oil cylinder) 8, locking cylinder (also can be called as the second oil cylinder) 9, motor 1(M), hydraulic gear pump 2, solenoid directional control valve 11, the two one-way throttle valves 7 between described torque arm oil cylinder 8 and described solenoid directional control valve 11 and the damping hole 10 between described locking cylinder 9 and described solenoid directional control valve 3.Described solenoid directional control valve 11 comprises the first port be communicated with described torque arm oil cylinder 8, the second port be communicated with described locking cylinder 9, the 3rd port be communicated with described hydraulic gear pump 2, first group of coil and second group of coil D3, D4, wherein, first group of coil comprises the first coil D1 parallel with one another and the second coil D2; Second group of coil comprises tertiary coil D3 parallel with one another and the 4th coil D4.
Secondly, please refer to figure in conjunction with shown in 1 and Fig. 2, it is the circuit diagram of the hydraulic power control gear in the present invention's hydraulic power system in one embodiment.Described hydraulic power control gear comprises hydraulic pressure switch (pressure relay) P, flip-over type time delays relay (ST3PT), i.e. the first control switch of three position automatic reset switch K2(), i.e. the second control switch of three position automatic reset switch K3(), push pull switch K1, relay J Z1, relay J Z4 and interlock circuit.The power supply of 144V powers to described motor M through relay J Z4, and relay J Z4 is normally closed switch.After push pull switch K1 conducting, subsequent conditioning circuit could work.In fact, this hydraulic pressure switch some belong to hydraulic power actuating device, this part is labeled as 6 in FIG, have part belong to hydraulic power control gear, this part is labeled as P in fig. 2.
Described interlock circuit comprises the relay J Z3 connected with automatic reset switch K3, the relay J Z2 connected with automatic reset switch K2, the control access (path at diode Z5 and Z6 place) be connected with the control end of relay J Z2, the control access (path at diode Z3 and Z4 place) that is connected with the control end of relay J Z3, relay J Z1, JZ2 and JZ2 are normally on, and relay J Z4 is normally closed switch.
As shown in Figure 2, when oil pressure is greater than predetermined threshold, the conducting of described hydraulic pressure switch 6, thus trigger time delay relay ST3PT, time delay relay conducting makes relay J Z1 disconnect, and circuit follow-up so all will have a power failure, and namely coil D1, D2, D3, D4 can be stopped power supply, relay J Z4 disconnects, and stops to described motor like this.After the delay of certain hour, described time delay relay recovers to disconnect, and now described relay J Z1 is also on state, can power to subsequent power.The predetermined threshold of described oil pressure can need according to user or experience is arranged.
When control switch K2 is first in working position, now it is on state, control access Z3 and Z4 control relay JZ3 disconnects with the conductive path of cutting-off controlling K switch 3, when control switch K3 is first in working position, now it is on state, and control access Z5 and Z6 control relay JZ2 disconnects with the conductive path of cutting-off controlling K switch 2.When K2 is in working position, coil D1 and D2 is energized, relay J Z4 conducting, all motor M and torque arm oil cylinder cooperating, now no matter how K3 controls, and described locking cylinder all can not work, same, when K3 is in working position, coil D3 and D4 is energized, relay J Z4 conducting, all motor M and locking cylinder cooperating, now no matter how K2 controls, and described torque arm oil cylinder all can not work.
As shown in Figure 2, described hydraulic power actuating device also comprises relief valve 3, pressure gauge 4, one-way throttle valve 5.
Hydraulic power system in the present invention can one include in new-energy automobile the compartment that described motor provides the battery of power supply and driven by hydraulic power system in described new-energy automobile, wherein said motor provides power for described automobile.
The electrokinetic cell of pure electric automobile is to motor 1(voltage: 48V, 72V, 144V, 312V etc.) provide motivational drive hydraulic gear pump 2 to be used for supply system high pressure oil, its pressure is set up by relief valve 3, the bidirectional-movement speed of hydraulic jack 8 adjusts setting by two one-way throttle valve 7 respectively, the movement velocity of hydraulic jack 9 is by the setting when designing of the damping hole 10 in system, pressure after hydraulic jack 8 and hydraulic jack 9 execution work arrive specified position (furthest travel of such as hydraulic jack) can rise, and finally arrive predetermined threshold, now hydraulic pressure switch 6 can provide trigger signal to time delay relay ST3PT, reset after the time delay of flip-over type time delays relay (ST3PT) again to system power supply, preparation enters next program work (such as regaining program).
Hydraulic jack 8 and hydraulic jack 9 achieve interlocking in the controls, and guarantee that two hydraulic jacks cannot work simultaneously, the safety of equipment and personnel is ensured reliably, and this is realized by interlock circuit.
New-energy automobile is opened total power switch and key operation, connect push pull switch K1, rotate three position automatic reset switch K2 to overturning (self-unloading) position, motor 1 and hydraulic gear pump 2 are started working, coil D1(or D2 of three-position four-way electromagnetic directional valve 5 simultaneously) energising, the high pressure oil of hydraulic system setting pressure passes through the flow of two one-way throttle valve 6 according to adjustment to hydraulic jack 8 fuel feeding, piston rod stretches out (or withdrawal), casing is driven to complete overturning (self-unloading) work, hydraulic jack 8 no longer moves after arrival specified position, the signal that its system internal pressure raises triggers hydraulic pressure switch (pressure relay) 6, flip-over type time delays relay S(ST3PT is triggered) by this switch feedback signal, and provide signal to relay J z1, Jz2, Jz3 etc. make system cut-off quit work, operator unclamps three position automatic reset switch K2 work and stops, through flip-over type time delays relay S(ST3PT) time delay 8S ~ 12S after reset again to system power supply, operator can prepare to enter next program work.
Operator continues rotation three position automatic reset switch K2 to withdrawal (reset) position, and whole system realizes reverse operation according to above order, thus realizes the reset of casing.
If operator's misoperation; proceed to work in the same way, no longer move because hydraulic jack 8 has arrived specified position, now system internal pressure can raise; quit work through the rapid power-off of signal feed back whole system, effectively protect the safety of personnel, equipment.
Rotate three position automatic reset switch K3, according to above working principle, can complete casing in overturning self-unloading process to the locking of casing, unclamp work, wherein the movement velocity of hydraulic jack 9 be by the damping hole 10 in system design time setting.
Hydraulic jack 8 and hydraulic jack 9 achieve interlocking in the controls, guarantee that two hydraulic jacks cannot work simultaneously: when rotation three position automatic reset switch K2 works, the adhesive of relay J z3 coil electricity is made by diode Z3 or Z4, three position automatic reset switch K3 and D3, D4 coil cannot obtain power supply (hydraulic jack 9 cannot work), make the adhesive of relay J z4 coil electricity by diode Z1 or Z2 simultaneously, motor and hydraulic power unit work, only provide high pressure oil to make its work to hydraulic jack 8; When rotation three position automatic reset switch K3 works, the adhesive of relay J z2 coil electricity is made by diode Z5 or Z6, three position automatic reset switch K2 and D1, D2 coil cannot obtain power supply (hydraulic jack 8 cannot work), make the adhesive of relay J z4 coil electricity by diode Z7 or Z8 simultaneously, motor and hydraulic power system work, only provide high pressure oil to make its work to hydraulic jack 9; System achieves the work interlocking of hydraulic jack 8 and hydraulic jack 9, the safety of equipment and personnel is ensured reliably.
The present invention is that hydraulic power system provides the motor (motor voltage that normal fluid pressure power unit uses is 12V, 24V) comprising 144V, 312V, 72V, 48V, special voltage, solves new-energy automobile and utilizes electrokinetic cell to provide the problem of power; Solve the adjustable problem of hydraulic jack (containing oil hydraulic motor etc.) movement velocity; Solve hydraulic jack work put in place after (stage has worked) automatic out-of-work problem; Solving and repeat to provide power supply to system through time delay, is the problem that next working procedure is ready.
In a specific embodiment, system design parameters: motor: power: 2.2Kw rotating speed 2500r/min; System pressure: 10 ~ 11MPa; Hydraulic jack 1: movement velocity: overturning speed: 20 ~ 28mm/s; Withdrawal speed: 20 ~ 28mm/s; Hydraulic jack 2: movement velocity: locking speed: 13 ~ 17mm/s; Release speed: 13 ~ 17mm/s; The delay time of flip-over type time delays relay: 8S ~ 12S.
It should be noted that, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (6)
1. a hydraulic power system, is characterized in that, it includes hydraulic power actuating device and hydraulic power control gear,
Described hydraulic power actuating device comprises motor, hydraulic gear pump and the first hydraulic jack, hydraulic gear pump described in described motoring, and and then make the first hydraulic jack execution work,
Described hydraulic power control gear comprises hydraulic pressure switch and delayed relay, described hydraulic pressure switch detects the oil pressure in hydraulic power actuating device, and the power supply of described motor is turned off when it reaches predetermined threshold, described hydraulic pressure switch triggers described delayed relay when oil pressure reaches predetermined threshold, described delayed relay cuts off the power supply of described motor afterwards via the triggering of described hydraulic pressure switch, and recover to described motor after postponing scheduled duration
Described hydraulic power actuating device also includes the second hydraulic jack and solenoid directional control valve, described solenoid directional control valve comprises the first port be communicated with the first hydraulic jack, the second port be communicated with the second hydraulic jack, the 3rd port be communicated with described hydraulic gear pump, first group of coil and second group of coil
After first group of coil powers on, control the first port be communicated with the 3rd port, after second group of coil powers on, control the second port be communicated with the 3rd port,
Described delayed relay cuts off the power supply of described motor afterwards via the triggering of described hydraulic pressure switch, also can cut off the power supply of first group of coil and second group of coil simultaneously, recover to described motor after delay scheduled duration, also recover to first group of coil and second group of coil power supply
Described hydraulic power control gear also comprises the first control switch, the second control switch and interlock circuit,
When first control switch is in working position, the conductive path conducting at conducting first group of coil and described motor place is powered to make them, when the first control switch is in off-position, cut off the power supply of first group of coil, when second control switch is in working position, the conductive path conducting at second group of coil and described motor place is powered, when the second control switch is in off-position to make them, cut off the power supply of second group of coil
Described interlock circuit makes, when first the first control switch is in working position, to cut off the conductive path at the second control switch place, when first the second control switch is in working position, cuts off the conductive path at the first control switch place.
2. hydraulic power system according to claim 1, is characterized in that:
Described interlock circuit comprise be series at the first control switch conductive path on the first relay, the second relay be series on the conductive path of the second control switch, the first control access be connected with the control end of the first relay and the second control access be connected with the control end of the second relay
First relay and the second relay are all normally on,
When the first control switch is first in working position, second control access controls the second relay and disconnects with the conductive path cutting off the second control switch, when the second control switch is first in working position, the first control access controls the first relay and disconnects with the conductive path cutting off the first control switch.
3. hydraulic power system according to claim 1, is characterized in that: described hydraulic pressure switch detects the oil pressure between described hydraulic gear pump and described solenoid directional control valve.
4. hydraulic power system according to claim 1, is characterized in that: the first hydraulic jack is torque arm oil cylinder, and the second hydraulic jack is locking cylinder,
Described hydraulic power actuating device also comprises the two one-way throttle valves between the first hydraulic jack and described solenoid directional control valve, the damping hole between the second hydraulic jack and described solenoid directional control valve and relief valve.
5. hydraulic power system according to claim 1, is characterized in that: described motor comprises the motor that voltage rating is 312V, 144V, 72V or 48V.
6. a new-energy automobile, it is characterized in that, it comprises, the hydraulic power system as described in as arbitrary in claim 1-5, to as described in the motor compartment that the battery of power supply is provided and driven by hydraulic power system, wherein said motor provides power for described automobile.
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| CN201310009547.3A CN103062165B (en) | 2013-01-10 | 2013-01-10 | Hydraulic power system and the application in new-energy automobile thereof |
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| CN201310009547.3A CN103062165B (en) | 2013-01-10 | 2013-01-10 | Hydraulic power system and the application in new-energy automobile thereof |
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| CN104165770B (en) * | 2014-08-08 | 2016-08-24 | 中国人民解放军镇江船艇学院 | A kind of control method of electromotor endoscope cooling controller |
| CN105114377A (en) * | 2015-09-28 | 2015-12-02 | 哈尔滨市开元节水喷灌设备制造有限公司 | Lifting mechanism of multipurpose spray irrigation towing tractor and hydraulic system thereof |
| CN108612710A (en) * | 2016-12-09 | 2018-10-02 | 镇江港诚电力设备有限公司 | Novel hydraulic power switch cabinet |
| CN110907097B (en) * | 2019-12-18 | 2021-08-31 | 福建水口发电集团有限公司 | Pressure test device and control method for drain cone of axial-flow rotary paddle turbine |
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