CN110273877A - A kind of miniaturization airborne hydraulic servo knapsack - Google Patents
A kind of miniaturization airborne hydraulic servo knapsack Download PDFInfo
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- CN110273877A CN110273877A CN201910621251.4A CN201910621251A CN110273877A CN 110273877 A CN110273877 A CN 110273877A CN 201910621251 A CN201910621251 A CN 201910621251A CN 110273877 A CN110273877 A CN 110273877A
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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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
- F15B1/021—Installations or systems with accumulators used for damping
-
- 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
- F15B13/021—Valves for interconnecting the fluid chambers of an actuator
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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
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/042—Controlling the temperature of the fluid
- F15B21/0423—Cooling
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/047—Preventing foaming, churning or cavitation
-
- 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
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/08—Servomotor systems incorporating electrically operated control means
- F15B21/087—Control strategy, e.g. with block diagram
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
A kind of miniaturization airborne hydraulic servo knapsack, is related to airborne hydraulic oil sources technical field.The present invention is to solve the problems, such as that existing external hydraulic oil source limitation machine movement range, airborne oil sources noise be big, low efficiency.The input terminal of the low-voltage output outlet connection oil return line of load, the entrance of the output end connection No.1 gear pump of oil return line, the input terminal of the outlet connection oil liquid output pipe of No.1 gear pump, the output end of oil liquid output pipe connects the high pressure feed of load and the input terminal of oil return line simultaneously, system senses module is used to acquire the revolving speed of motor, the flow of oil liquid in oil liquid output pipe, the temperature of the pressure of oil liquid and oil liquid in oil liquid output pipe, and the information of acquisition is transmitted to drive control module, drive control module adjusts the pressure and flow of output oil liquid by control pressure regulation filtering module.It is used to carry out hydraulic control to the oil liquid entered in load.
Description
Technical field
The present invention relates to a kind of miniaturization airborne hydraulic oil sources of mobile machine, and have good servo control performance
(servo knapsack) belongs to airborne hydraulic oil sources technical field.
Background technique
Now, movable hydraulic machine can obtain powerful power using hydraulic oil source, according to hydraulic oil source installation site
Can be divided into two kinds, one kind is external hydraulic oil source, and volume of fuel tank is big, good heat dissipation effect, and filtering is convenient, accumulator volume compared with
Greatly, the volume of mobile machine itself is not influenced.Whether fixed hydraulic oil sources can be moved into according to oil sources, also be hydraulic power unit
With mobile oil sources.External hydraulic oil source is connected to by hose with mobile machine, provides hydraulic power for mobile machine, this is resulted in
The maximum problem of mobile machine, cannot be detached from oil sources self-movement, job area is constrained by hose length.Another kind is machine
Device Ontology integration hydraulic oil source；The transmitting of its hydraulic power does not need to connect longer hydraulic hose, and hydraulic oil cycle period is short, machine
Device conveniently moving.To provide powerful hydraulic power, this kind of airborne hydraulic oil sources generally use small gasoline or diesel engine
Machine provides power, and engine noise is big, cannot be accurately controlled its revolving speed and output torque, so its working efficiency is low, fever
Amount is big.
Summary of the invention
The present invention is that existing external hydraulic oil source limitation machine movement range, airborne oil sources noise is big, imitates in order to solve
The low problem of rate.A kind of miniaturization airborne hydraulic servo knapsack is now provided.
A kind of miniaturization airborne hydraulic servo knapsack, which is characterized in that servo knapsack includes power unit, drive control mould
Block 3, pressure regulation filtering module 4, system senses module 5, low pressure valve block 6, high pressure valve block 7 and multiple valve bodies,
Power unit includes motor 2 and No.1 gear pump 1, and 2 output shaft of motor and the driving input shaft of No.1 gear pump 1 are same
Axis connection,
There is oil return line in low pressure valve block 6, there is oil liquid output pipe in high pressure valve block 7, multiple valve body settings are defeated in oil liquid
Outlet pipe road, controls for the output to oil liquid, and multiple valve bodies are arranged on oil return line, for the oil return to oil liquid into
Row control,
The input terminal of the low-voltage output outlet connection oil return line of load, the output end of oil return line connect No.1 gear pump 1
Entrance, the input terminal of the outlet connection oil liquid output pipe of No.1 gear pump 1, the output end of oil liquid output pipe connects simultaneously
The high pressure feed of load and the input terminal of oil return line,
Drive control module 3 is used for driving motor 2, the signal exported according to system senses module 5 is also used to, to pressure regulation
Filtering module 4 is controlled,
Pressure regulation filtering module 4 is also used to receive driving control for filtering the oil liquid in oil liquid output pipe and oil return line
The control signal of molding block 3 exports the pressure and flow of oil liquid to adjust；
System senses module 5, for acquiring the revolving speed of motor 2, in oil liquid output pipe oil liquid flow, oil liquid efferent duct
The temperature of the pressure of oil liquid and oil liquid in road, and the information of acquisition is transmitted to drive control module 3.
Preferably, pressure regulation filtering module 4 includes proportional dump valve, high pressure filter 8 and low-pressure filter 18,
Proportional dump valve is arranged on oil liquid output pipe, the pressure of the oil liquid for being acquired according to system senses module 5
Pressure regulation is carried out to the oil liquid of output；
High pressure filter 8 is arranged on oil liquid output pipe, for filtering the oil liquid in oil liquid output pipe；
Low-pressure filter 18 is arranged on oil return line, for filtering the oil liquid in oil return line.
Preferably, the multiple valve bodies being arranged on oil liquid output pipe are respectively high pressure accumulator 11, overflow valve 12, guide
Formula sequence valve 20 and high pressure oil quick-release connector 13,
High pressure oil quick-release connector 13 is used to for the output end of oil liquid output pipe being connected to the high pressure feed of load,
High pressure accumulator 11, for eliminating the pressure fluctuation of oil liquid in oil liquid output pipe,
Pressure, the pressure is arranged for receiving the pressure regulation signal of proportional dump valve by guide type sequence valve 20 in overflow valve 12
Power is less than the oil pressure in oil liquid output pipe, so that it flow to the oil liquid in oil liquid output pipe in oil return line, it is defeated to oil liquid
The oil pressure in pipeline carries out pressure release out.
Preferably, the multiple valve bodies being arranged on oil return line are respectively low pressure oil quick-release connector 17, low pressure accumulator 16
With cooling module,
Low pressure oil quick-release connector 17 is used to for the output end of oil return line being connected to the low-voltage output outlet of load,
Low pressure accumulator 16, for absorbing the fluctuation of the oil return on oil return line,
Cooling module, it is cooling when temperature is more than setting value for acquiring oil liquid temperature by drive control module 3
Oil return.
Preferably, the servo knapsack further includes electromagnetic switch valve 21 and No. two gear pumps 27,
It is defeated that one end of electromagnetic switch valve 21, the outlet of No.1 gear pump 1 and the outlet of No. two gear pumps 27 are all connected with oil liquid
Pipeline input terminal out,
The entrance of the other end of electromagnetic switch valve 21, the entrance of No.1 gear pump 1 and No. two gear pumps 27 is all connected with oil return
Pipeline output end；
No. two gear pumps 27 are driven by motor 2.
Preferably, system senses module 5 includes 14, No. two temperature sensor 22, No.1 pressure sensor pressure sensors
19, flowmeter 23 and incremental encoder,
Temperature sensor 22, No.1 pressure sensor 14 and flowmeter 23 are arranged on oil liquid output pipe, No. two pressures
Force snesor 19 is arranged on oil return line, and incremental encoder is mounted on motor 2,
Temperature sensor 22 is used to acquire the temperature of oil liquid in oil liquid output pipe,
No.1 pressure sensor 14 is used to acquire the pressure of oil liquid in oil liquid output pipe,
No. two pressure sensors 19 are used to acquire the pressure of oil liquid in oil return line,
Flowmeter 23 is used to acquire the flow of output oil liquid,
Incremental encoder is used to feed back the revolving speed of motor 2.
Preferably, the servo knapsack further includes energy conservation module,
Energy conservation module includes 96V battery pack and 24V battery pack, and 96V battery pack provides power electric for power unit,
24V battery pack is drive control module 3, pressure regulation filtering module 4, system senses module 5, cooling module, high pressure accumulator
11 and low pressure accumulator 16 provide electric power.
Preferably, motor 2 is outer rotor DC motor 2, and No.1 gear pump 1 and No. two gear pumps 27 are external toothing spiral
Tooth-profile of gear pump.
Preferably, cooling module adds cooler 24 to form using cooling fin.
The invention has the benefit that
A kind of miniaturization airborne hydraulic servo knapsack applied to mobile machine of the application；Including power unit, energy
Source control module, drive control module, cooling module and the energy-storing pressure-stabilizing being made of high pressure accumulator and low pressure accumulator
Module organic composition realizes that the high power density of hydraulic power exports by the rational division of work of multiple modules, has high voltage stability, greatly
Flow, light weight, it is small in size the advantages that, can meet hydraulic servo knapsack to space, weight etc. requirement.It in a limited space can be defeated
Higher hydraulic-driven power out.
Compared with existing all kinds of hydraulic power units, present invention miniaturization airborne hydraulic servo knapsack specifically has following beneficial
Effect:
1, using the airborne hydraulic servo knapsack of oil-free case integrated structure, Hydraulic Elements integrated installation is in high-low pressure valve block
On, simple and compact for structure, light weight, installation and removal are conveniently；Complete machine safety and reliability improves；
2, the flow according to needed for system and pressure realize the SERVO CONTROL of airborne hydraulic knapsack, real-time perception servo knapsack
The information such as flow, pressure, temperature, and real-time control servo knapsack output pressure and flow, to high power density integrated hydraulic
The realization of servo knapsack is precisely controlled, and improves servo knapsack energy utilization efficiency.
3, servo knapsack forms duplex pump scheme using No.1 gear pump and No. two gear pumps, needs the short time big in load
When flow high pressure hydraulic power demand, No.1 gear pump and No. two gear pumps export big flow and high pressure simultaneously, thus full
Sufficient machine instantaneous high power demand.
Detailed description of the invention
Fig. 1 is a kind of schematic illustration of miniaturization airborne hydraulic servo knapsack described in specific embodiment one；
Fig. 2 is Hydraulic System Principle schematic diagram described in specific embodiment two；
Fig. 3 is a kind of structural schematic diagram for minimizing airborne hydraulic servo knapsack.
Specific embodiment
Specific embodiment 1: illustrating present embodiment referring to Figure 1 and Figure 3, one kind described in present embodiment is small
Type airborne hydraulic servo knapsack, servo knapsack include power unit, drive control module 3, pressure regulation filtering module 4, system sense
Know module 5, low pressure valve block 6, high pressure valve block 7 and multiple valve bodies,
Power unit includes motor 2 and No.1 gear pump 1, and 2 output shaft of motor and the driving input shaft of No.1 gear pump 1 are same
Axis connection,
There is oil return line in low pressure valve block 6, there is oil liquid output pipe in high pressure valve block 7, multiple valve body settings are defeated in oil liquid
Outlet pipe road, controls for the output to oil liquid, and multiple valve bodies are arranged on oil return line, for the oil return to oil liquid into
Row control,
The input terminal of the low-voltage output outlet connection oil return line of load, the output end of oil return line connect No.1 gear pump 1
Entrance, the input terminal of the outlet connection oil liquid output pipe of No.1 gear pump 1, the output end of oil liquid output pipe connects simultaneously
The high pressure feed of load and the input terminal of oil return line,
Drive control module 3 is used for driving motor 2, the signal exported according to system senses module 5 is also used to, to pressure regulation
Filtering module 4 is controlled,
Pressure regulation filtering module 4 is also used to receive driving control for filtering the oil liquid in oil liquid output pipe and oil return line
The control signal of molding block 3 exports the pressure and flow of oil liquid to adjust；
System senses module 5, for acquiring the revolving speed of motor 2, in oil liquid output pipe oil liquid flow, oil liquid efferent duct
The temperature of the pressure of oil liquid and oil liquid in road, and the information of acquisition is transmitted to drive control module 3.
In present embodiment, referring to Fig. 2,3 driving motor 2 of drive control module passes through electric machine speed regulation after motor 2 is opened
Device gradually rises motor speed, and the operating of motor 2 drives No.1 gear pump 1 to start, while one-way throttle valve 9 being opened, and will load
Interior oil is pumped into oil liquid output pipe by the oil return line connected, and low-pressure filter 18 and low is provided on oil return line
Pressure accumulator 16 was respectively intended to impurity in oil strain and eliminated bubble in oil；Pass through high pressure into the oil liquid in oil liquid output pipe
Accumulator 11 eliminates the pressure fluctuation of output oil liquid, using 8 impurity screening of high pressure filter；It is arranged on oil liquid output pipe
Pressure sensor carrys out the pressure of oil liquid in real-time monitoring oil liquid output pipe, when the pressure that pressure sensor monitors at this time is higher than
When loading the oil liquid pressure needed, then overflow valve 12 is set by guide type sequence valve 20 by proportional dump valve output electric signal
Constant-pressure, the pressure of setting are less than the pressure in oil liquid output pipe, the oil liquid in oil liquid output pipe are made to flow to oil return line
In, so that the pressure in oil liquid output pipe is released, in order not to allow high pressure oil to flow into load, in order to avoid damage load elements, together
When also protect the safety of motor pump group, the oil liquid after pressure release is flow in oil return line to be continued to be pumped into oil liquid by No.1 gear pump 1 again
It is defeated by proportional dump valve if the oil pressure that pressure sensor monitors at this time is the oil pressure that load needs in output pipe
Electric signal sets pressure to overflow valve 12 by guide type sequence valve 20 out, and the pressure of the setting is greater than in oil liquid output pipe
Pressure, while No. two switch valves 10 on oil liquid output pipe being opened, it allows the oil stream in oil liquid output pipe to enter load, is negative
It carries and the hydraulic oil of the oil liquid power met the requirements is provided；
Therefore, if the oil pressure in oil liquid output pipe is higher than the oil pressure that load needs, the pressure of overflow valve 12 is controlled,
It is back to oil liquid in oil return line, carries out pressure release；To protect load；And when the oil pressure in oil liquid output pipe is lower than load
When the oil pressure needed, then pressure is adjusted by adjusting motor speed and output torque.
In Fig. 1, high pressure accumulator is mainly used to eliminate surging, maintains the stabilization of pressure, in order to mitigate valve block weight
Machine inner space is measured and makes full use of, high pressure accumulator is installed in high pressure valve block；Low pressure accumulator serves as fuel tank effect, peace
Loaded on low pressure valve it is fast on, low pressure accumulator 16 for absorb oil return fluctuation, eliminate oil return bubble, by the steady of low pressure accumulator 16
It is fuel feeding in No.1 gear pump that pressure effect, which eliminates bubble and pulsation again,.Reflux is avoided to be emptied gear pump 1 when flowing into gear pump 1.
In Fig. 3, motor 2 is outer rotor DC motor, outer rotor DC motor and two gear pumps by axis connection, single
High pressure valve block 7 is passed through to throttle valve 9 to connect with No.1 gear pump 1；High pressure filter 8, one-way throttle valve 9,2/2-way switch
Valve 10, high pressure accumulator 11, overflow valve 12, high pressure oil quick-release connector 13 and oil pressure sensor 14 are all mounted on high pressure valve accordingly
On fast 7, low-pressure filter 18 passes through low pressure valve block 6 and connect with No.1 gear pump, low-pressure filter 18, low pressure accumulator 16, low
Pressure oil quick-release connector 17, oil pressure sensor 19, be all mounted on accordingly low pressure valve it is fast on.
Specific embodiment 2: illustrating present embodiment referring to Fig. 2, present embodiment is to specific embodiment one
A kind of miniaturization airborne hydraulic servo knapsack is described further, in present embodiment, pressure regulation filtering module 4 include than
Example pressure regulator valve, high pressure filter 8 and low-pressure filter 18,
Proportional dump valve is arranged on oil liquid output pipe, the pressure of the oil liquid for being acquired according to system senses module 5
Pressure regulation is carried out to the oil liquid of output；
High pressure filter 8 is arranged on oil liquid output pipe, for filtering the oil liquid in oil liquid output pipe；
Low-pressure filter 18 is arranged on oil return line, for filtering the oil liquid in oil return line.
In present embodiment, be provided on oil liquid output pipe guide type sequence valve, high pressure filter 8, proportional dump valve,
High pressure accumulator 11, high pressure oil quick-release connector 13, temperature sensor 22, pressure sensor 14, flowmeter 23 and No. three switch valves
15, there is No.1 switch valve 10 in the outlet of oil liquid output pipe, when oil pressure is the oil pressure that load needs, then opens No.1 switch valve
10, allow the oil liquid in oil liquid output pipe to flow into load.The entrance of oil return line is provided with No. two switch valves 25, and No. two are opened
It closes valve 25 to open, starts No.1 gear pump, the low pressure oil liquid in load will enter in oil return line.
No. two switch valves 25, low pressure oil quick-release connector 17, overflow valve 12,16 and of low pressure accumulator are provided on oil return line
Cooling module,
The entrance of oil return line is provided with No. two switch valves 25, this No. two switch valves 10 are opened, and the oil in load enters
In oil return line.
In present embodiment, through further finishing after low pressure valve block 6 and the use 3D printing technique completion shape of high pressure valve block 7
Work is completed, and removes technique oil circuit from；High pressure filter and low-pressure filter use plug-in filter, by overflow valve 12, pilot-operated type
The pressure regulator valve that sequence valve 20 and proportional dump valve are constituted uses inserted valve, saves space to greatest extent；Low pressure accumulator is slow
The volume for rushing entire robot and hydraulic system changes and design customized, reduces occupied space and weight to the greatest extent.Pressure,
Temperature sensor is customed product, minimizes volume.Above-mentioned all parts are arranged loaded in valve block around gear pump.
Specific embodiment 3: illustrating present embodiment referring to Fig. 2 and Fig. 3, present embodiment is to specific implementation
A kind of miniaturization airborne hydraulic servo knapsack described in mode two is described further, and in present embodiment, is arranged defeated in oil liquid
Multiple valve bodies of outlet pipe road are respectively high pressure accumulator 11, overflow valve 12, guide type sequence valve 20 and high pressure oil quick-release connector
13,
High pressure oil quick-release connector 13 is used to for the output end of oil liquid output pipe being connected to the high pressure feed of load,
High pressure accumulator 11, for eliminating the pressure fluctuation of oil liquid in oil liquid output pipe,
Oil pressure relief is arranged for the pressure regulation signal by the reception proportional dump valve of guide type sequence valve 20 in overflow valve 12,
If the pressure being arranged is less than the oil pressure in oil liquid output pipe, the oil liquid in oil liquid output pipe is flow in oil return line, right
Oil pressure in oil liquid output pipe carries out pressure release, if the pressure of setting is greater than the oil pressure in oil liquid output pipe, oil liquid output
Oil liquid in pipeline flows into the high pressure feed of load.
In present embodiment, since overflow valve 12 is mechanical, so it is logical to export electric signal by proportional dump valve
Guide type sequence valve 20 is crossed to control overflow valve 12.
The pressure of proportional dump valve carries out scene or long-range control by analog quantity.It is maximum to adapt to machine difference operating condition
The reduction energy consumption of degree.
Specific embodiment 4: present embodiment is watched to a kind of miniaturization airborne hydraulic described in specific embodiment three
It takes knapsack to be described further, in present embodiment, the multiple valve bodies being arranged on oil return line are respectively the fast changing-over of low pressure oil
First 17, low pressure accumulator 16 and cooling module,
Low pressure oil quick-release connector 17 is used to for the output end of oil return line being connected to the low-voltage output outlet of load,
Low pressure accumulator 16, for absorbing the fluctuation of the oil return on oil return line,
Cooling module, it is cooling when temperature is more than setting value for acquiring oil liquid temperature by drive control module 3
Oil return.
Specific embodiment 5: present embodiment is watched to a kind of miniaturization airborne hydraulic described in specific embodiment four
Knapsack is taken to be described further, in present embodiment, the servo knapsack further includes electromagnetic switch valve 21 and No. two gear pumps 27,
It is defeated that one end of electromagnetic switch valve 21, the outlet of No.1 gear pump 1 and the outlet of No. two gear pumps 27 are all connected with oil liquid
Pipeline input terminal out,
The entrance of the other end of electromagnetic switch valve 21, the entrance of No.1 gear pump 1 and No. two gear pumps 27 is all connected with oil return
Pipeline output end；
No. two gear pumps 27 are driven by motor 2.
In present embodiment, check valve 26 is set in the outlet of No. two gear pumps 27, for making from No. two gear pumps 27
The oil liquid pumped out enters in oil liquid output pipe.
Power section is used in parallel by No.1 gear pump 1 and No. two gear pumps 27, and when system needs the work of small flow, electromagnetism is opened
It closes valve 21 to be connected, No. two gear pumps 27 idle running not output flow, when system needs big flow to work, electromagnetic switch valve 21 is cut
Only, No. two gear pumps 27 work, and system output flow is double.
No.1 gear pump and No. two gear pumps are lightweight gear pump, and the high pressure with crescent gear pump and plunger pump is special
Property, contamination resistance is strong, generates heat low, and aluminum alloy casing reduces pump weight.The driving of motor output shaft and two lightweight gear pumps
Input shaft is coaxially connected.
Specific embodiment 6: present embodiment is watched to a kind of miniaturization airborne hydraulic described in specific embodiment two
It takes knapsack to be described further, in present embodiment, system senses module 5 includes temperature sensor 22, No.1 pressure sensor
14, No. two pressure sensors 19, flowmeter 23 and incremental encoder,
Temperature sensor 22, No.1 pressure sensor 14 and flowmeter 23 are arranged on oil liquid output pipe, No. two pressures
Force snesor 19 is arranged on oil return line, and incremental encoder is mounted on motor 2,
Temperature sensor 22 is used to acquire the temperature of oil liquid in oil liquid output pipe,
No.1 pressure sensor 14 is used to acquire the pressure of oil liquid in oil liquid output pipe,
No. two pressure sensors 19 are used to acquire the pressure of oil liquid in oil return line,
Flowmeter 23 is used to acquire the flow of output oil liquid,
Incremental encoder is used to feed back the revolving speed of motor 2.
In present embodiment, referring to Fig.1, system senses module includes four parts: cell voltage current sensing, and motor turns
Speed system traffic aware, the perception of system high-low pressure, system temperature perception.System senses module feedback information is to drive control module
Form closed-loop control.
Specific embodiment 7: present embodiment is watched to a kind of miniaturization airborne hydraulic described in specific embodiment one
Knapsack is taken to be described further, in present embodiment, the servo knapsack further includes energy conservation module,
Energy conservation module includes 96V battery pack and 24V battery pack, and 96V battery pack provides power electric for power unit,
24V battery pack is drive control module 3, pressure regulation filtering module 4, system senses module 5 and cooling modules with power.
In present embodiment, battery pack is made of lithium battery, has the characteristics that light-weight, capacity is big, memory-less effect,
It uses high magnification 10C battery core, powerful, and battery pack includes high-power protection board, and self-protection can be carried out to battery pack, right
The charge and discharge of battery carry out planning limitation.
Specific embodiment 8: present embodiment is watched to a kind of miniaturization airborne hydraulic described in specific embodiment one
It takes knapsack to be described further, in present embodiment, motor 2 is outer rotor DC motor 2, No.1 gear pump 1 and No. two gears
Pump 27 is external toothing screw serrated form gear pump.
In present embodiment, motor is the motor of high power density, and motor uses outer rotor DC motor, has weight
Gently, the features such as output power is high, revolving speed and output torque are big；It is also equipped with high-precision incremental encoder on motor, is used for
Real-time Feedback motor speed.High-precision incremental encoder is integrated on motor, using heavy-duty motor driver real-time control
Motor speed and torque, to control the output pressure and flow of pump；Control aspect configures AD/DA using embedded controller
Interface and CAN communication interface, A D interface acquire each road sensor information of servo knapsack, and DA interface exports electric signal and controls ratio tune
Pressure valve, CAN communication interface are communicated with motor driver, realize the real-time adjusting to motor speed.
Specific embodiment 9: present embodiment is watched to a kind of miniaturization airborne hydraulic described in specific embodiment four
It takes knapsack to be described further, in present embodiment, cooling module adds cooler 24 to form using cooling fin.
In present embodiment, cooling radiating module increases the radiator of the air-cooled composition of speed using cooling fin, independently installed
In machine inner space, radiate for hydraulic system.Cooler 24 is installed on oil return cooling fin, is cooled down to oil return.
Claims (9)
1. a kind of miniaturization airborne hydraulic servo knapsack, which is characterized in that servo knapsack includes power unit, drive control module
(3), pressure regulation filtering module (4), system senses module (5), low pressure valve block (6), high pressure valve block (7) and multiple valve bodies,
Power unit includes motor (2) and No.1 gear pump (1), and the driving of motor (2) output shaft and No.1 gear pump (1) inputs
Axis is coaxially connected,
There is oil return line in low pressure valve block (6), there is oil liquid output pipe in high pressure valve block (7), multiple valve body settings are defeated in oil liquid
Outlet pipe road, controls for the output to oil liquid, and multiple valve bodies are arranged on oil return line, for the oil return to oil liquid into
Row control,
The input terminal of the low-voltage output outlet connection oil return line of load, output end connection No.1 gear pump (1) of oil return line
Entrance, the input terminal of the outlet connection oil liquid output pipe of No.1 gear pump (1), the output end of oil liquid output pipe connect simultaneously
The high pressure feed of load and the input terminal of oil return line,
Drive control module (3) is used for driving motor (2), is also used to the signal exported according to system senses module (5), is exchanged
Press filtration module (4) is controlled,
Pressure regulation filtering module (4) is also used to receive drive control for filtering the oil liquid in oil liquid output pipe and oil return line
The control signal of module (3) exports the pressure and flow of oil liquid to adjust；
System senses module (5), for acquiring the revolving speeds of motor (2), in oil liquid output pipe oil liquid flow, oil liquid efferent duct
The temperature of the pressure of oil liquid and oil liquid in road, and the information of acquisition is transmitted to drive control module (3).
2. a kind of miniaturization airborne hydraulic servo knapsack according to claim 1, which is characterized in that pressure regulation filtering module (4)
Including proportional dump valve, high pressure filter (8) and low-pressure filter (18),
Proportional dump valve is arranged on oil liquid output pipe, the pressure pair of the oil liquid for being acquired according to system senses module (5)
The oil liquid of output carries out pressure regulation；
High pressure filter (8) is arranged on oil liquid output pipe, for filtering the oil liquid in oil liquid output pipe；
Low-pressure filter (18) is arranged on oil return line, for filtering the oil liquid in oil return line.
3. a kind of miniaturization airborne hydraulic servo knapsack according to claim 2, which is characterized in that
The multiple valve bodies being arranged on oil liquid output pipe are respectively high pressure accumulator (11), overflow valve (12), pilot-operated type sequence
Valve (20) and high pressure oil quick-release connector (13),
High pressure oil quick-release connector (13) is used to for the output end of oil liquid output pipe being connected to the high pressure feed of load,
High pressure accumulator (11), for eliminating the pressure fluctuation of oil liquid in oil liquid output pipe,
Oil pressure relief is arranged for the pressure regulation signal by guide type sequence valve (20) reception proportional dump valve in overflow valve (12),
If the pressure being arranged is less than the oil pressure in oil liquid output pipe, the oil liquid in oil liquid output pipe is flow in oil return line, right
Oil pressure in oil liquid output pipe carries out pressure release, if the pressure of setting is greater than the oil pressure in oil liquid output pipe, oil liquid output
Oil liquid in pipeline flows into the high pressure feed of load.
4. a kind of miniaturization airborne hydraulic servo knapsack according to claim 3, which is characterized in that be arranged on oil return line
Multiple valve bodies be respectively low pressure oil quick-release connector (17), low pressure accumulator (16) and cooling module,
Low pressure oil quick-release connector (17) is used to for the output end of oil return line being connected to the low-voltage output outlet of load,
Low pressure accumulator (16), for absorbing the fluctuation of the oil return on oil return line,
Cooling module is cooled back for acquiring oil liquid temperature by drive control module (3) when temperature is more than setting value
Oil.
5. a kind of miniaturization airborne hydraulic servo knapsack according to claim 4, which is characterized in that the servo knapsack also wraps
Electromagnetic switch valve (21) and No. two gear pumps (27) are included,
One end of electromagnetic switch valve (21), the outlet of No.1 gear pump (1) and the outlet of No. two gear pumps (27) are all connected with oil liquid
Output pipe input terminal,
The entrance of the other end of electromagnetic switch valve (21), the entrance of No.1 gear pump (1) and No. two gear pumps (27) is all connected with back
Oil pipe line output end；
No. two gear pumps (27) are driven by motor (2).
6. a kind of miniaturization airborne hydraulic servo knapsack according to claim 2, which is characterized in that system senses module (5)
It is compiled including temperature sensor (22), No.1 pressure sensor (14), No. two pressure sensors (19), flowmeter (23) and increment type
Code device,
Temperature sensor (22), No.1 pressure sensor (14) and flowmeter (23) are arranged on oil liquid output pipe, and No. two
Pressure sensor (19) is arranged on oil return line, and incremental encoder is mounted on motor (2),
Temperature sensor (22) is used to acquire the temperature of oil liquid in oil liquid output pipe,
No.1 pressure sensor (14) is used to acquire the pressure of oil liquid in oil liquid output pipe,
No. two pressure sensors (19) are used to acquire the pressure of oil liquid in oil return line,
Flowmeter (23) is used to acquire the flow of output oil liquid,
Incremental encoder is used to feed back the revolving speed of motor (2).
7. a kind of miniaturization airborne hydraulic servo knapsack according to claim 1, which is characterized in that the servo knapsack also wraps
Energy conservation module is included,
Energy conservation module includes 96V battery pack and 24V battery pack, and 96V battery pack provides power electric, 24V electricity for power unit
Chi Zuwei drive control module (3), pressure regulation filtering module (4), system senses module (5) and cooling modules with power.
8. a kind of miniaturization airborne hydraulic servo knapsack according to claim 5, which is characterized in that motor (2) is outer rotor
Direct current generator (2), No.1 gear pump (1) and No. two gear pumps (27) are external toothing screw serrated form gear pump.
9. a kind of miniaturization airborne hydraulic servo knapsack according to claim 4, which is characterized in that cooling module uses
Cooling fin adds cooler (24) to form.
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| CN110273877B CN110273877B (en) | 2021-03-09 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114750303A (en) * | 2022-06-15 | 2022-07-15 | 中建安装集团有限公司 | Drilling system and drilling method for urban rail transit engineering construction |
| CN115217809A (en) * | 2022-06-30 | 2022-10-21 | 中国北方发动机研究所(天津) | Integrated hydraulic drive block |
| CN115573974A (en) * | 2022-09-23 | 2023-01-06 | 哈尔滨工业大学 | Integrated movable airborne hydraulic servo backpack |
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| CN105971982A (en) * | 2016-07-25 | 2016-09-28 | 哈尔滨工业大学 | Portable small and light high-power hydraulic station |
| CN207526814U (en) * | 2017-12-03 | 2018-06-22 | 保定宏业石油物探机械制造有限责任公司 | A kind of Backpack type pumping plant |
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| US3977189A (en) * | 1975-07-02 | 1976-08-31 | Kubik Philip A | Reservoir housing |
| CN101571155A (en) * | 2009-05-26 | 2009-11-04 | 薛国光 | Digital electric-hydraulic synchronous control system |
| CN105971982A (en) * | 2016-07-25 | 2016-09-28 | 哈尔滨工业大学 | Portable small and light high-power hydraulic station |
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| CN114750303A (en) * | 2022-06-15 | 2022-07-15 | 中建安装集团有限公司 | Drilling system and drilling method for urban rail transit engineering construction |
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| CN115217809A (en) * | 2022-06-30 | 2022-10-21 | 中国北方发动机研究所(天津) | Integrated hydraulic drive block |
| CN115573974A (en) * | 2022-09-23 | 2023-01-06 | 哈尔滨工业大学 | Integrated movable airborne hydraulic servo backpack |
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|---|---|
| CN110273877B (en) | 2021-03-09 |
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