CN105332961A - Vehicle-mounted hydraulic constant-speed power generation system and power generation method thereof - Google Patents
Vehicle-mounted hydraulic constant-speed power generation system and power generation method thereof Download PDFInfo
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- CN105332961A CN105332961A CN201510880761.5A CN201510880761A CN105332961A CN 105332961 A CN105332961 A CN 105332961A CN 201510880761 A CN201510880761 A CN 201510880761A CN 105332961 A CN105332961 A CN 105332961A
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- constant speed
- hydraulic
- vehicle
- pump
- constant
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
Abstract
The invention discloses a vehicle-mounted hydraulic constant-speed power generation system. The vehicle-mounted hydraulic constant-speed power generation system is composed of a hydraulic pump set formed by connecting a variable pump and an external oil supplement pump in series. The hydraulic pump set is connected with a vehicle-mounted engine for driving the hydraulic pump set and is further connected with a power generation unit, and the power generation unit is composed of a constant-speed hydraulic motor and a permanent magnet power generator and is connected with electric equipment through an inverter. The variable pump and the constant-speed hydraulic motor form a closed type hydraulic system. The invention further discloses a power generation method. According to the power generation method, the vehicle-mounted engine drives the hydraulic pump set, the variable pump provides hydraulic oil for the constant-speed hydraulic motor so as to drive the permanent magnet power generator to work, the variable pump and the constant-speed hydraulic motor form the closed system, and the external oil supplement pump provides oil flow and supplement oil and dissipate heat for the closed system. The vehicle-mounted hydraulic constant-speed power generation system has the advantages of being easy to manufacture, reliable in performance, small in size, light in weight, capable of generating power in a driving mode or a parking mode and high in power generation quality.
Description
Technical field
the present invention relates to a kind of vehicle-mounted power field, particularly a kind of vehicle-mounted hydraulic constant speed generation system and electricity-generating method thereof of civilian or military vehicle.
Background technique
portable generator will send the power supply of burning voltage and frequency, generator constant rotational speed need be kept, this is easy to when vehicle parking realize, but vehicle when driving engine speed is change at random, this just needs to ensure the work of running process generator constant speed by other hydraulic pressure or mechanical control method.Vehicle-mounted generation mode generally has mechanical drive mode, vehicle-mounted diesel engine mode and hydraulic transmission mode three kinds.Mechanical drive mode, because mechanical speed governors difficulty, volume are large and the shortcoming such as difficult arrangement, being generally suitable only for generating of stopping; Vehicle-mounted diesel engine generation mode brings the difficulty that cloth is set up owing to will increase a diesel engine in addition, be generally only suitable for small-power power generation system for subsequent use.Hydraulic transmission scheme has the features such as power-weight ratio is large, volume is little, flexible arrangement.Current hydraulic transmission mode is generally adopt percentage of import pump Negotiation speed feedback to carry out PID closed loop control to drive fixed displacement motor to drive excitation generator to generate electricity, its control system is comparatively complicated, excitation generator profile is comparatively large, heavier-weight, and power generating quality is not high.
Summary of the invention
the object of the invention is to, a kind of vehicle-mounted hydraulic constant speed generation system and electricity-generating method thereof are provided.The present invention has and makes simple, reliable performance, low-profile, lightweight, duplex position, can drive a vehicle or power generation in parking and the high feature of generating quality.
technological scheme of the present invention: vehicle-mounted hydraulic constant speed generation system, it is characterized in that: comprise by variable displacement pump and external slippage pump oil hydraulic pump group in series, oil hydraulic pump group is connected with the on-board engine for driving, oil hydraulic pump group is also connected with generator set, generator set is made up of constant speed oil hydraulic motor and permanent magnet generator, and generator set is connected with consumer through inverter; Described variable displacement pump and constant speed oil hydraulic motor form closed type hydraulic system.
in aforesaid vehicle-mounted hydraulic constant speed generation system, described variable displacement pump is connected with generator set through pump discharge valve block.
in aforesaid vehicle-mounted hydraulic constant speed generation system, be integrated with safety valve in described pump discharge valve block, safety valve is connected between variable displacement pump outlet and return opening.
in aforesaid vehicle-mounted hydraulic constant speed generation system, be also integrated with the accumulator, pressure-gradient control valve and the shuttle valve that connect successively in described pump discharge valve block, shuttle valve is connected with the first flow valve and the second Flow valve that are arranged in parallel; Fluid is after pressure-gradient control valve distributes, and a road exports from A working hole through first flow valve, drives constant speed oil hydraulic motor, and another road second Flow valve exports from B working hole, drives other executive components; Shuttle valve is connected to A working hole, between B working hole and the control mouth of variable displacement pump.
in aforesaid vehicle-mounted hydraulic constant speed generation system, also comprise the repairing integrated package be made up of the first one-way valve and relief valve, and form closed type hydraulic system with variable displacement pump, pump discharge valve block, constant speed oil hydraulic motor.
in aforesaid vehicle-mounted hydraulic constant speed generation system, be provided with the second one-way valve at constant speed oil hydraulic motor into and out of the parallel connection of hydraulic fluid port two ends.
realize the vehicle-mounted hydraulic constant speed generation method of aforesaid vehicle-mounted hydraulic constant speed generation system, it is characterized in that: by on-board engine, oil hydraulic pump group is driven, variable displacement pump provides hydraulic oil source for constant speed oil hydraulic motor, thus drive permanent magnet generator work, variable displacement pump and constant speed oil hydraulic motor form closed system, and external slippage pump provides flow to be that closed system carries out repairing and heat radiation.
in aforesaid vehicle-mounted hydraulic constant speed generation method, described variable displacement pump adopts constant voltage/constant current amount control mode, make on-board engine under different rotating speeds, drive variable displacement pump to export constant flow rate in conjunction with first flow valve, to ensure that constant speed oil hydraulic motor drives permanent magnet generator with constant rotational speed, the electric energy that permanent magnet generator exports is through inverter rectification, the electric energy supply consumer of stable output voltage and frequency, secondly under metastable operating mode, more unnecessary flow is exported other executive components of driving.
in aforesaid vehicle-mounted hydraulic constant speed generation method, safety valve is also adopted to carry out high voltage protective to vehicle-mounted hydraulic constant speed generation system.
in aforesaid vehicle-mounted hydraulic constant speed generation method, one-way valve is adopted to inhale empty protection to constant speed oil hydraulic motor.
compared with prior art, the present invention provides hydraulic oil source to drive constant speed oil hydraulic motor by on-board engine Direct driver variable displacement pump, generated electricity by constant speed oil hydraulic motor Direct driver permanent magnet generator again, the engine power of vehicle, by controlling simple hydraulic system, drives constant speed oil hydraulic motor to drive permanent magnet generator,
the shortcomings and limitations that the power generation system solving current existing machinery or hydraulic driving excitation generator exists, have and make simple, reliable performance, low-profile, lightweight, duplex position, can drive a vehicle or power generation in parking and the high feature of generating quality.
Accompanying drawing explanation
fig. 1 is hydraulic schematic of the present invention;
fig. 2 is variable displacement pump form structure schematic diagram;
fig. 3 is hydraulic system form structure schematic diagram.
being labeled as in accompanying drawing: 1-air-cooled radiator, 2-return filter, 3-liquid level relay, 4-level meter, 5-oil filler, 6-hydraulic oil container, 7-air-strainer, 8-repairing integrated package, 9-first one-way valve, 10-hydraulic hose, the external slippage pump of 11-, 12-variable displacement pump, 13-oil hydraulic pump group, 14-safety valve, 15-first flow valve, 16-permanent magnet generator, 17-constant speed oil hydraulic motor, 18-generator set, 19-on-board engine, 20-relief valve, 21-inverter, 22-pump discharge valve block, 23-hydraulic pipe line, 24-hydraulic joint, 25-mounting base, 26-pressure-gradient control valve, 27-accumulator, 28-second Flow valve, 29-shuttle valve, other executive components of 30-, 31-second one-way valve.
Embodiment
below in conjunction with drawings and Examples, the present invention is further illustrated, but not as the foundation limited the present invention.
embodiment.Vehicle-mounted hydraulic constant speed generation system, form as illustrated in fig. 1 and 2, comprise by variable displacement pump 12 and external slippage pump 11 oil hydraulic pump group 13 in series, oil hydraulic pump group 13 is connected with the on-board engine 19 for driving, oil hydraulic pump group 13 is also connected with generator set 18, generator set 18 is made up of constant speed oil hydraulic motor 17 and permanent magnet generator 16, and generator set 18 is connected with consumer through inverter 21; Described variable displacement pump 12 and constant speed oil hydraulic motor 17 form closed type hydraulic system.
described variable displacement pump 12 is connected with generator set 18 through pump discharge valve block 22.
be integrated with safety valve 14 in described pump discharge valve block 22, safety valve 14 is connected to variable displacement pump 12 and exports between return opening.
also be integrated with the accumulator 27, pressure-gradient control valve 26 and the shuttle valve 29 that connect successively in described pump discharge valve block 22, shuttle valve 29 is connected with the first flow valve 15 and the second Flow valve 28 that are arranged in parallel.Other executive components 30 are connected with between pump discharge valve block 22 and variable displacement pump 12 return opening; After pressure-gradient control valve 26 is connected to accumulator 27, fluid is after pressure-gradient control valve 26 distributes, and a road exports from A working hole through first flow valve 15, drives constant speed oil hydraulic motor 17, and another road second Flow valve 28 exports from B working hole, drives other executive components 30; Shuttle valve 29 is connected to A working hole, between B working hole and the control mouth of variable displacement pump 12.
also comprise the repairing integrated package 8 be made up of the first one-way valve 9 and relief valve 20, and form closed type hydraulic system with variable displacement pump 12, pump discharge valve block 22, constant speed oil hydraulic motor 17.
on-board engine Direct driver variable displacement pump provides hydraulic oil source to drive constant speed oil hydraulic motor, then is generated electricity by constant speed oil hydraulic motor Direct driver permanent magnet generator, controls fast simple and convenient.
described variable displacement pump 12 is connected with generator set 18 through first flow valve 15.Variable displacement pump can adopt constant voltage/constant current amount control mode and combine outlet first flow valve, when motor different rotating speeds changes, self adaption can carry out displacement variation, drives constant speed oil hydraulic motor to drive permanent magnet generator to ensure that constant flow rate exports.Variable displacement pump fuel feeding drives constant speed oil hydraulic motor, and the oil return of constant speed oil hydraulic motor flows back to variable displacement pump import through external repairing integrated package, forms a set of closed type hydraulic system circuit.
variable displacement pump afterbody is connected an external slippage pump, for closed type hydraulic system carries out repairing, heat radiation and filtration etc.
also comprise hydraulic pressure form structure, form as shown in Figure 3, hydraulic pressure form structure hydraulic oil container 6, return filter 2, air-cooled radiator 1, repairing integrated package 8, constant speed oil hydraulic motor 17, permanent magnet generator 16 and other hydraulic system auxiliaries is integrated in one carry out integral arrangement.
the relief valve 20 of described repairing integrated package 8 connects air-cooled radiator 1, return filter 2, hydraulic oil container 6, external slippage pump 11 successively.First one-way valve 9 of repairing integrated package 8 is connected with external slippage pump 11, and be provided with liquid level relay 3, level meter 4 and air-strainer 7 above described hydraulic oil container 6, bottom is provided with oil filler 5.The unidirectional outlet of the first one-way valve 9 is connected by the import of hydraulic hose with variable displacement pump 12.
described permanent magnet generator 16 is fixed in mounting base 25, and described repairing integrated package 8 is provided with hydraulic joint 24 and hydraulic pipe line 23.
relief valve 20 pairs of system oil compensation pressure set and regulate, and air-cooled radiator 1, oil return oil filter 2, liquid level relay 3, level meter 4, oil filler 5, hydraulic oil container 6, air-strainer 7, repairing integrated package 8, first one-way valve 9 and hydraulic hose 10 etc. are the necessary auxiliaries of this vehicle-mounted constant speed generation system.
also integrated accumulator 27 in pump discharge valve block 22, before accumulator 27 is connected to first flow valve 15, its effect is comparatively large or very fast in on-board engine 19 rotation speed change, when the response of variable displacement pump 12 flow is slow, the flow of first flow valve 15 is absorbed or compensates, to keep constant traffic driven oil hydraulic motor 17, stablize the rotating speed of constant speed oil hydraulic motor.
pump discharge valve block 22 interior also integrated pressure-gradient control valve 26, second Flow valve 28, shuttle valve 29, after pressure-gradient control valve 26 is connected to accumulator 27, pressure-gradient control valve 26 has relatively and the function of flow rate distribution, therefore, hydraulic oil is after pressure-gradient control valve 26, first road binders ensures that enough flows export from A working hole through first flow valve 15, constant speed oil hydraulic motor 17 is driven to rotate, unnecessary flow exports from B working hole through the second Flow valve 28 by the second road binders, drive other executive components 30, other executive components 30 can be oil hydraulic motor or oil hydraulic cylinder etc.; The duplex position that this structure achieves system controls.Shuttle valve 29 is connected between A working hole and B working hole, in order to compare the downstream pressure of first flow valve 15 and the second Flow valve 28, and gets the control mouth of the large access variable displacement pump 12 of its pressure, adjusts in time the flow of variable displacement pump 12.
in addition, for preventing constant speed oil hydraulic motor 17 from occurring " inhaling empty " phenomenon, at constant speed oil hydraulic motor 17 into and out of hydraulic fluid port two ends parallel connection the second one-way valve 31, the empty protective action of anti-suction can also be played.
the present invention adopts variable displacement pump to drive, and permanent magnet generator mode controls simply, compact structure, conveniently arrange, the quality of power supply that sends is high, can be used for driving a vehicle or power generation in parking.
accumulator 27 acts on: comparatively large or very fast at on-board engine 19 transformation of speed, and not in time, accumulator 27 exports certain flow and compensates the response of variable displacement pump 12 flow, with stable constant speed oil hydraulic motor 17 rotating speed.
pressure-gradient control valve 26 acts on: variable displacement pump 12 output flow is through pressure-gradient control valve 26, and the enough flows of preferential guarantee export from A working hole and drive constant speed oil hydraulic motor 17 to rotate, and unnecessary flow exports from B working hole and drives other executive components 30.
first flow valve 15 acts on: have pressure compensation effect in conjunction with pressure-gradient control valve 26(), ensure that constant flow rate exports and drive constant speed oil hydraulic motor 17, output flow is not by load effect.
second Flow valve 28 acts on: have pressure compensation effect in conjunction with pressure-gradient control valve 26(), ensure that constant flow rate exports and drive other executive components 30, output flow is not by load effect.。
shuttle valve 29 acts on: compare first flow valve 15 and the second Flow valve 28 downstream pressure, the access variable displacement pump 12 getting its pressure large controls mouth, adjusts in time the discharge capacity of variable displacement pump 12.
realize the vehicle-mounted hydraulic constant speed generation method of above-mentioned vehicle-mounted hydraulic constant speed generation system, it is characterized in that: by on-board engine, oil hydraulic pump group is driven, variable displacement pump provides hydraulic oil source for constant speed oil hydraulic motor, thus drive permanent magnet generator work, variable displacement pump and constant speed oil hydraulic motor form closed system, and external slippage pump provides flow to be that closed system carries out repairing and heat radiation.Described variable displacement pump adopts constant voltage/constant current amount control mode; make on-board engine under different rotating speeds, drive variable displacement pump to export constant flow rate in conjunction with Flow valve; to ensure that constant speed oil hydraulic motor drives permanent magnet generator with constant rotational speed; the electric energy that permanent magnet generator exports is through inverter rectification; the electric energy supply consumer of stable output voltage and frequency; secondly under metastable operating mode; again unnecessary flow is exported and drive other executive components, also adopt safety valve to carry out high voltage protective to vehicle-mounted hydraulic constant speed generation system.
Claims (10)
1. vehicle-mounted hydraulic constant speed generation system, it is characterized in that: comprise by variable displacement pump (12) and external slippage pump (11) oil hydraulic pump group (13) in series, oil hydraulic pump group (13) is connected with the on-board engine (19) for driving, oil hydraulic pump group (13) is also connected with generator set (18), generator set (18) is made up of constant speed oil hydraulic motor (17) and permanent magnet generator (16), and generator set (18) is connected with consumer through inverter (21); Described variable displacement pump (12) and constant speed oil hydraulic motor (17) form closed type hydraulic system.
2. vehicle-mounted hydraulic constant speed generation system according to claim 1, is characterized in that: described variable displacement pump (12) is connected with generator set (18) through pump discharge valve block (22).
3. vehicle-mounted hydraulic constant speed generation system according to claim 2, is characterized in that: be integrated with safety valve (14) in described pump discharge valve block (22), and safety valve (14) is connected between variable displacement pump (12) outlet and return opening.
4. vehicle-mounted hydraulic constant speed generation system according to claim 2, it is characterized in that: be also integrated with the accumulator (27), pressure-gradient control valve (26) and the shuttle valve (29) that connect successively in described pump discharge valve block (22), shuttle valve (29) is connected with the first flow valve (15) and the second Flow valve (28) that are arranged in parallel.
5. vehicle-mounted hydraulic constant speed generation system according to claim 2, it is characterized in that: also comprise the repairing integrated package (8) be made up of the first one-way valve (9) and relief valve (20), and form closed type hydraulic system with variable displacement pump (12), pump discharge valve block (22), constant speed oil hydraulic motor (17).
6. vehicle-mounted hydraulic constant speed generation system according to claim 1, is characterized in that: be provided with the second one-way valve (31) at constant speed oil hydraulic motor (17) into and out of the parallel connection of hydraulic fluid port two ends.
7. realize the vehicle-mounted hydraulic constant speed generation method of the vehicle-mounted hydraulic constant speed generation system described in any one of claim 1-6, it is characterized in that: by on-board engine, oil hydraulic pump group is driven, variable displacement pump provides hydraulic oil source for constant speed oil hydraulic motor, thus drive permanent magnet generator work, variable displacement pump and constant speed oil hydraulic motor form closed system, and external slippage pump provides flow to be that closed system carries out repairing and heat radiation.
8. vehicle-mounted hydraulic constant speed generation method according to claim 7, it is characterized in that: described variable displacement pump adopts constant voltage/constant current amount control mode, make on-board engine under different rotating speeds, drive variable displacement pump to export constant flow rate in conjunction with Flow valve, to ensure that constant speed oil hydraulic motor drives permanent magnet generator with constant rotational speed, the electric energy that permanent magnet generator exports is through inverter rectification, and the electric energy of stable output voltage and frequency supplies consumer.
9. vehicle-mounted hydraulic constant speed generation method according to claim 7, is characterized in that: also adopt safety valve to carry out high voltage protective to vehicle-mounted hydraulic constant speed generation system.
10. vehicle-mounted hydraulic constant speed generation method according to claim 7, is characterized in that: adopt one-way valve to inhale empty protection to constant speed oil hydraulic motor.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286435A (en) * | 2016-08-30 | 2017-01-04 | 力源液压（苏州）有限公司 | A kind of digital Variable plunger pump and control method |
| CN108868904A (en) * | 2018-06-14 | 2018-11-23 | 重庆科技学院 | It is a kind of for recycling the hydraulic variable motor speed-regulating system of natural gas remaining energy |
| CN109162972A (en) * | 2018-10-30 | 2019-01-08 | 太重榆次液压工业（上海）有限公司 | A kind of aluminium volume baling press send the plunger pump speed regulating control hydraulic device of volume trolley |
| CN109184902A (en) * | 2018-11-09 | 2019-01-11 | 徐工集团工程机械有限公司 | Vehicle-mounted hydraulic power generator and its control method, breakdown lorry |
| CN109653866A (en) * | 2018-11-13 | 2019-04-19 | 重庆长安工业(集团)有限责任公司 | Modularized integrated hydraulic generating set |
| CN110307189A (en) * | 2019-05-23 | 2019-10-08 | 中国北方车辆研究所 | It is a kind of to provide the component of permanent oil suction pressure for hydraulic pump |
| CN110401298A (en) * | 2019-07-26 | 2019-11-01 | 中车山东机车车辆有限公司 | A kind of shaft end electricity generation system and method for railway freight-car |
| CN110593991A (en) * | 2019-10-10 | 2019-12-20 | 浙江海聚科技有限公司 | Diesel engine DPF real-time power generation active heating device |
| WO2023051391A1 (en) * | 2021-09-29 | 2023-04-06 | 中车大连机车研究所有限公司 | Hydraulic-driven auxiliary power generation system for vehicle |
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| CN110307189A (en) * | 2019-05-23 | 2019-10-08 | 中国北方车辆研究所 | It is a kind of to provide the component of permanent oil suction pressure for hydraulic pump |
| CN110401298A (en) * | 2019-07-26 | 2019-11-01 | 中车山东机车车辆有限公司 | A kind of shaft end electricity generation system and method for railway freight-car |
| CN110401298B (en) * | 2019-07-26 | 2021-06-22 | 中车山东机车车辆有限公司 | Shaft end power generation system and method for railway wagon |
| CN110593991A (en) * | 2019-10-10 | 2019-12-20 | 浙江海聚科技有限公司 | Diesel engine DPF real-time power generation active heating device |
| WO2023051391A1 (en) * | 2021-09-29 | 2023-04-06 | 中车大连机车研究所有限公司 | Hydraulic-driven auxiliary power generation system for vehicle |
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Address after: 550018 No.1, 2nd Floor, Building 102, Beiya Village, Xintianzhai, Wudang District, Guiyang City, Guizhou Province Patentee after: Guizhou Anfei Precision Manufacturing Co.,Ltd. Address before: 550018 No.1, 2nd Floor, Building 102, Beiya Village, Xintianzhai, Wudang District, Guiyang City, Guizhou Province Patentee before: LIYUAN HYDRAULIC SYSTEM (GUIYANG) Co.,Ltd. |
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