CN102003315B - Hydraulic common-rail device of multiple working hydraulic sources of engineering vehicle - Google Patents
Hydraulic common-rail device of multiple working hydraulic sources of engineering vehicle Download PDFInfo
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- CN102003315B CN102003315B CN2010105919777A CN201010591977A CN102003315B CN 102003315 B CN102003315 B CN 102003315B CN 2010105919777 A CN2010105919777 A CN 2010105919777A CN 201010591977 A CN201010591977 A CN 201010591977A CN 102003315 B CN102003315 B CN 102003315B
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- 239000010720 hydraulic oil Substances 0.000 claims abstract description 30
- 239000002828 fuel tank Substances 0.000 claims abstract description 5
- 239000003921 oil Substances 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims 1
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 239000000203 mixture Substances 0.000 abstract description 2
- 239000012080 ambient air Substances 0.000 description 3
- 230000002452 interceptive effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
一种工程车辆多工作液压源的液压共轨装置，包括液压油源系统、电控单元和至少两个子系统执行机构控制阀，所述的液压油源系统由电控液压油泵、共轨腔、共轨压力阀、共轨腔压力传感器和油箱组成，所述的子系统执行机构控制阀与所述的共轨腔连接。本发明的优点在于由采用单个电控液压油泵与共轨腔的组合工作，可方便地适应车辆各子系统对液压工作参数的要求，简化车辆液压系统组成，降低液压系统成本，提高液压系统工作效率，节约车辆系统工作能量消耗。
A hydraulic common rail device for multi-working hydraulic sources of engineering vehicles, including a hydraulic oil source system, an electronic control unit and at least two subsystem actuator control valves, the hydraulic oil source system consists of an electronically controlled hydraulic oil pump, a common rail cavity, The common rail pressure valve, the common rail cavity pressure sensor and the fuel tank are composed, and the subsystem actuator control valve is connected with the common rail cavity. The advantages of the present invention are that the combination of a single electronically controlled hydraulic oil pump and a common rail cavity can easily adapt to the requirements of the hydraulic work parameters of each subsystem of the vehicle, simplify the composition of the hydraulic system of the vehicle, reduce the cost of the hydraulic system, and improve the working efficiency of the hydraulic system , save the energy consumption of the vehicle system.
Description
技术领域： Technical field:
本发明涉及一种多工作液压源的液压共轨装置，尤其涉及一种应用在工程车辆中多工作液压源的液压共轨装置。The invention relates to a hydraulic common rail device with multiple working hydraulic sources, in particular to a hydraulic common rail device with multiple working hydraulic sources applied in engineering vehicles.
背景技术： Background technique:
工程车辆是完成特定工程作业的特种车辆，在车辆行驶过程中伴随着各种复合动作与功能的要求，在车辆动力源发动机系统的输出端需要多个工作液压源，以分别满足工作装置系统动作的动力需求、转向系统助力的动力需求、车辆系统冷却散热风扇驱动的动力需求、制动系统制动控制的动力需求、先导操纵系统的动力需求、悬置支承系统液压压力的保持等多项功能要求。目前，在工程车辆中的多工作液压源常采用多油泵液压源装置，使得各子系统相互独立、液压泵源数量多、系统构成成本高、间歇与循环作业液压能量浪费大、车辆使用能耗增加、效率低。Engineering vehicles are special vehicles that complete specific engineering operations. During the driving process of the vehicle, with the requirements of various compound actions and functions, multiple working hydraulic sources are required at the output end of the vehicle power source engine system to respectively satisfy the action of the working device system. The power demand of the steering system, the power demand of the steering system, the power demand of the cooling fan drive of the vehicle system, the power demand of the brake control of the braking system, the power demand of the pilot control system, the maintenance of the hydraulic pressure of the suspension support system, etc. Require. At present, multi-working hydraulic sources in engineering vehicles often use multi-oil pump hydraulic source devices, which make each subsystem independent of each other, a large number of hydraulic pump sources, high system configuration costs, large waste of hydraulic energy for intermittent and cyclic operations, and energy consumption for vehicles. increase and low efficiency.
发明内容： Invention content:
本发明的目的是提供一种工程车辆多工作液压源的液压共轨装置，在满足各子系统对液压工作参数的要求下，采用单个电控液压油泵工作。The purpose of the present invention is to provide a hydraulic common rail device for multi-working hydraulic sources of engineering vehicles, which uses a single electronically controlled hydraulic oil pump to work under the condition that each subsystem meets the requirements of hydraulic working parameters.
本发明包括液压油源系统、电控单元1和至少两个子系统执行机构控制阀2，所述的液压油源系统由电控液压油泵3、共轨腔4、共轨压力阀5、共轨腔压力传感器6和油箱7组成，所述的电控液压油泵3向所述的共轨腔4提供液压油，所述的电控单元1收集所述的共轨腔压力传感器6的信号、各子系统执行机构控制阀工作状态信号，并控制所述的电控液压油泵3的工作状态，所述的共轨压力阀5的回油流回所述的油箱7；所述的子系统执行机构控制阀2与所述的共轨腔4连接，所述的电控单元1分别控制所述的子系统执行机构控制阀2，所述的执行机构控制阀2的回油流回所述的油箱7。The present invention includes a hydraulic oil source system, an electronic control unit 1 and at least two subsystem
所述的电控单元1还连接有发动机转速传感器8、环境空气温度传感器9和液压油温度传感器10。The electronic control unit 1 is also connected with an engine speed sensor 8 , an ambient air temperature sensor 9 and a hydraulic
本发明的优点在于由采用单个电控液压油泵工作，通过共轨腔和各子系统执行机构控制阀向车辆各子系统提供稳定的液压工作参数需求，提高了液压系统设计与工作的灵活性。同时电控液压油泵所需的驱动力矩较传统方式下多油泵驱动力矩少得多，节约发动机能量消耗。共轨腔液压压力的产生与各子系统工作需求分离，与发动机转速特性分离，保障了各子系统液压工作参数的稳定、有效提供。多个液压子系统可以同步或以相应组合方式工作，互不干扰。针对各种工程车辆主机的使用要求，本发明可灵活、方便地适应车辆各子系统对液压工作参数的要求，简化车辆液压系统组成，降低液压系统成本，提高液压系统工作效率，节约车辆系统工作能量消耗。The advantage of the present invention is that a single electronically controlled hydraulic oil pump is used to provide stable hydraulic working parameter requirements to each subsystem of the vehicle through the common rail cavity and the control valves of the actuators of each subsystem, thereby improving the flexibility of hydraulic system design and work. At the same time, the driving torque required by the electronically controlled hydraulic oil pump is much less than that of multiple oil pumps in the traditional way, which saves the energy consumption of the engine. The generation of hydraulic pressure in the common rail cavity is separated from the working requirements of each subsystem and from the characteristics of the engine speed, which ensures the stable and effective provision of hydraulic working parameters of each subsystem. Multiple hydraulic subsystems can work synchronously or in a corresponding combination without interfering with each other. Aiming at the use requirements of various engineering vehicle main engines, the present invention can flexibly and conveniently adapt to the requirements of each subsystem of the vehicle on hydraulic working parameters, simplify the composition of the vehicle hydraulic system, reduce the cost of the hydraulic system, improve the working efficiency of the hydraulic system, and save the work of the vehicle system. energy consumption.
附图说明： Description of drawings:
图1是本发明结构示意图。Fig. 1 is a schematic diagram of the structure of the present invention.
其中1为电控单元，2为子系统执行机构控制阀，3为电控液压油泵，4为共轨腔，5为共轨压力阀，6为共轨腔压力传感器，7为油箱，8为发动机转速传感器，9为环境空气温度传感器，10为液压油温度传感器，11为执行机构。Among them, 1 is the electronic control unit, 2 is the subsystem actuator control valve, 3 is the electronically controlled hydraulic oil pump, 4 is the common rail cavity, 5 is the common rail pressure valve, 6 is the common rail cavity pressure sensor, 7 is the fuel tank, and 8 is the The engine speed sensor, 9 is the ambient air temperature sensor, 10 is the hydraulic oil temperature sensor, and 11 is the actuator.
具体实施方式： Detailed ways:
下面结合附图和具体实施方式对本发明进一步说明。The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
液压油源系统由单个电控液压油泵、共轨腔、共轨压力阀、共轨腔压力传感器和油箱组成。电控液压油泵由发动机驱动旋转，向共轨腔提供一定压力、流量的液压油，共轨腔的压力参数由压力传感器监测，并输送至电控单元，电控单元根据各系统监控参数，控制油泵的工作状态，使共轨腔的工作压力、工作流量在一定范围内稳定。利用较大容积的共轨腔，将电控液压油泵输出的高压油蓄积起来，可有效消除液压油的压力波动，并且压力的产生与发动机转速没有直接的关联。The hydraulic oil source system consists of a single electronically controlled hydraulic oil pump, a common rail cavity, a common rail pressure valve, a common rail cavity pressure sensor and an oil tank. The electronically controlled hydraulic oil pump is driven by the engine to provide hydraulic oil with a certain pressure and flow rate to the common rail cavity. The pressure parameters of the common rail cavity are monitored by the pressure sensor and sent to the electronic control unit. The electronic control unit controls the The working state of the oil pump makes the working pressure and working flow of the common rail cavity stable within a certain range. The large-volume common rail cavity is used to accumulate the high-pressure oil output by the electronically controlled hydraulic oil pump, which can effectively eliminate the pressure fluctuation of the hydraulic oil, and the generation of pressure is not directly related to the engine speed.
本发明可以有若干个(两个以上)子系统的液压能量输出，共轨腔分别向子系统输出压力P、流量Q，保障各子系统的工作要求。本具体实施方式有七个子系统输出，各子系统的液压能量输出均经子系统执行机构控制阀，以一定工作压力、工作流量组合状态输出，满足子系统液压工作要求。由于共轨腔的压力稳定，各子系统液压工作流量取决于子系统执行机构控制阀的通径、负荷压力大小。各子系统可以同步或以相应的组合方式工作，互不干扰。各子系统执行机构控制阀均由电控单元控制。共轨压力阀和各子系统执行机构控制阀的回油均流回油箱。The present invention can output hydraulic energy from several (more than two) subsystems, and the common rail chamber outputs pressure P and flow Q to the subsystems respectively, so as to ensure the working requirements of each subsystem. This embodiment has seven subsystem outputs, and the hydraulic energy output of each subsystem is output in a combined state of a certain working pressure and working flow through the control valve of the subsystem actuator to meet the hydraulic work requirements of the subsystem. Due to the stable pressure of the common rail cavity, the hydraulic working flow of each subsystem depends on the diameter and load pressure of the control valve of the actuator of the subsystem. Each subsystem can work synchronously or in a corresponding combination without interfering with each other. The actuator control valves of each subsystem are controlled by the electronic control unit. The return oil from the common rail pressure valve and the actuator control valves of each subsystem all flows back to the oil tank.
本发明工作状态的监控由电控单元完成，各种状态参数均输入至电控单元，电控单元据此分析、计算工作状态，输出控制指令，控制共轨腔压力特征，保障共轨腔向各子系统提供稳定的液压工作参数。电控单元连接有共轨腔压力传感器、发动机转速传感器、环境空气温度传感器、液压油温度传感器、各子系统液压压力传感器和各回油压力传感器。电控液压油泵在电控单元控制下，控制输入至共轨腔的流量、压力参数，使共轨腔的工作压力稳定。The monitoring of the working state of the present invention is completed by the electronic control unit, and various state parameters are input to the electronic control unit, and the electronic control unit analyzes and calculates the working state based on this, outputs control instructions, controls the pressure characteristics of the common rail cavity, and ensures the direction of the common rail cavity. Each subsystem provides stable hydraulic operating parameters. The electronic control unit is connected with a common rail cavity pressure sensor, an engine speed sensor, an ambient air temperature sensor, a hydraulic oil temperature sensor, hydraulic pressure sensors of each subsystem and oil return pressure sensors. Under the control of the electronic control unit, the electronically controlled hydraulic oil pump controls the flow and pressure parameters input to the common rail chamber to stabilize the working pressure of the common rail chamber.
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| CN2010105919777A CN102003315B (en) | 2010-12-16 | 2010-12-16 | Hydraulic common-rail device of multiple working hydraulic sources of engineering vehicle |
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| CN2010105919777A CN102003315B (en) | 2010-12-16 | 2010-12-16 | Hydraulic common-rail device of multiple working hydraulic sources of engineering vehicle |
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| CN102003315B true CN102003315B (en) | 2012-11-07 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6644025B1 (en) * | 1999-02-05 | 2003-11-11 | Bosch Rexroth Ag | Control arrangement for at least two hydraulic consumers and pressure differential valve for said control arrangement |
| CN201882015U (en) * | 2010-12-16 | 2011-06-29 | 吉林大学 | Hydraulic common rail device of engineering vehicle multi work hydraulic sources |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6644025B1 (en) * | 1999-02-05 | 2003-11-11 | Bosch Rexroth Ag | Control arrangement for at least two hydraulic consumers and pressure differential valve for said control arrangement |
| CN201882015U (en) * | 2010-12-16 | 2011-06-29 | 吉林大学 | Hydraulic common rail device of engineering vehicle multi work hydraulic sources |
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