CN105782166B - Energy-saving hydraulic with hydraulic analog loading pumps endurance test bed - Google Patents
Energy-saving hydraulic with hydraulic analog loading pumps endurance test bed Download PDFInfo
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- CN105782166B CN105782166B CN201610332898.1A CN201610332898A CN105782166B CN 105782166 B CN105782166 B CN 105782166B CN 201610332898 A CN201610332898 A CN 201610332898A CN 105782166 B CN105782166 B CN 105782166B
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Classifications
-
- 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
- F15B21/14—Energy-recuperation means
Abstract
The invention discloses a kind of energy-saving hydraulics with hydraulic analog loading to pump endurance test bed, is made of power elder generation guide module, power take-off module, refrigerating module, rectifier bridge, load-on module, energy recovery module and fuel tank.The present invention is stored the energy in the accumulator of power elder generation guide module, has power saving function；The present invention is by the way that by the second axis and overrunning clutch coaxial of the variable displacement motor output shaft of load-on module and energy recovery module, energy regenerating is realized in drive hydraulic pump rotation；The present invention realizes hydraulic analog loading by adjusting system pressure, can meet hydraulic pump durability test rated condition；The present invention is in the experiment for keeping can be achieved plurality of specifications hydraulic pump in the case that module is constant.
Description
Technical field
It is more particularly to a kind of to apply hydraulic analog load to hydraulic pump the present invention relates to a kind of hydraulic pump is test bed
Energy-saving endurance test bed.
Background technology
Hydraulic pump is the important motivity element in hydraulic drive, and durability is also most important.Current hydraulic loaded examination
The endurance issues of hydraulic pump are seldom considered in check system, lead to Frequent Troubles during overall test or complete machine use.Thus
As it can be seen that in the art, it is badly in need of carrying out durability test to hydraulic pump.In addition, it is deposited during hydraulic pump durability test
Energy consumption is big the problem of, the improvement of energy saving aspect how is carried out to hydraulic pump endurance test bed, is that technology urgently to be resolved hurrily is asked
Topic.
Invention content
The purpose of the invention is to provide a kind of energy-saving hydraulic with hydraulic analog loading to pump endurance test bed.
The present invention is by power elder generation guide module, power take-off module, refrigerating module, rectifier bridge, load-on module, energy regenerating
Module and fuel tank composition.Power elder generation guide module is connect with the load-on module by proportional pressure-reducing valve.The power is defeated
The hydraulic pressure pump input shaft for going out module is coaxial by the first torque and speed sensors and the first axle of energy recovery module.The power
The output hydraulic pressure oil of output module enters load-on module by rectifier bridge, and is maintained always from the variable displacement motor of load-on module
Fixed hydraulic fluid port input hydraulic pressure oil.The output hydraulic pressure oil of the power take-off module can flow back to fuel tank by refrigerating module.It is described
The variable displacement motor output shaft of load-on module and the second axis and overrunning clutch coaxial of energy recovery module.
Power elder generation guide module by proportional pressure-reducing valve, the 5th overflow valve, accumulator, pressure switch, the 4th check valve,
Second motor and guide oil pump group into.Guide's oil pump and the second motor coaxle；5th overflow valve is used for controlling guide
The output pressure of oil pump；Guide's oil pump passes through the 4th check valve and the 5th overflow valve, proportional pressure-reducing valve, accumulator, pressure
Relay connects；Proportional pressure-reducing valve gives variable displacement motor pressure supply.
The power take-off module is by hydraulic pump, slippage pump, the first torque and speed sensors, first pressure sensor,
Two pressure sensors, the first cooler, first flow sensor, second flow sensor, the first oil filter, the first check valve,
Second check valve, the first overflow valve, the second overflow valve and third overflow valve composition；The hydraulic pump and slippage pump are coaxial；It is described
Hydraulic pump unloading port is connect by fluid pressure line with fuel tank；There is the first cooler on the fluid pressure line；By the first oil filter
The hydraulic oil of filtering is entered in slippage pump, then system is given to supplement hydraulic oil by the check valve of the first check valve/second, extra
Hydraulic oil returns to fuel tank by the third overflow valve；The overflow valve of first overflow valve/second is safety valve, for controlling liquid
The output pressure of press pump；First flow sensor/second flow the sensor is used for surveying the output flow of the hydraulic pump；Institute
The output pressure that first pressure sensor/second pressure sensor is used for surveying the hydraulic pump is stated, while the second pressure passes
Sensor/first pressure sensor is used for the input pressure in circuit where surveying the hydraulic pump；First torque and speed sensors
For surveying the rotational speed and torque of the hydraulic pressure pump input shaft.
The refrigerating module includes flushing valve, the 4th overflow valve, the second cooler and the second oil filter.Hot liquid in system
Pressure oil passes through flushing valve, and the predetermined pressure for reaching the 4th overflow valve can drain into fuel tank through fluid pressure line, on the fluid pressure line
There are the second cooler and the second oil filter, second oil filter is used to that the cleannes of fluid to be controlled to comply with defined experiment
It is required that.
The rectifying valve block that the rectifier bridge is made of four check valves.
The load-on module by variable displacement motor (present invention using the H2V number of variables motors of SAMHYDRAULIK companies as
Example), the second torque and speed sensors, third cooler, third flow sensor, third pressure sensor and the unidirectional valve group of third
Into.The variable displacement motor has the relevant automatic variable characteristic of high pressure；The variable displacement motor unloading port passes through fluid pressure line
It is connect with the fuel tank；There is third cooler on the fluid pressure line；The third check valve is to prevent being emptied check valve；Described
Three flow sensors are used for surveying the input flow rate of the variable displacement motor；The third pressure sensor is used for surveying the variable displacement motor
Input pressure；Second torque and speed sensors are used for surveying the rotational speed and torque of the variable displacement motor output shaft.
The energy recovery module is by the first motor, first axle, first gear, the second axis, freewheel clutch and the second tooth
Wheel composition.First motor is coaxially connected firmly with first axle；The first gear is engaged with second gear, and first gear is led to
Key is crossed to be fixed in first axle；The freewheel clutch is coordinated with second gear by voussoir, when freewheel clutch and the second tooth
For wheel without relative motion, steering is identical, and rotating speed is equal, could realize that torque is transmitted；The freewheel clutch and the second axis are coaxial, surpass
More clutch is fixed on by key on the second axis.
Compared with prior art the beneficial effects of the invention are as follows：
1. the present invention exports axis connection using freewheel clutch and variable displacement motor, avoid variable displacement motor non-normal working and draw
The suck-back phenomenon risen；
2. the mechanical energy that variable displacement motor exports in the present invention is rotated by freewheel clutch band moving gear, energy regenerating is realized
Purpose.
3. in the present invention, guide's oil pump out of the mouth is connected with accumulator, stores the energy in accumulator, realize energy-efficient
Function.
4. the variable displacement motor with the relevant automatic variable characteristic of high pressure is used in the present invention, by adjusting system pressure
Power realizes hydraulic analog loading, can meet hydraulic pump durability test rated condition.
5. the present invention is in the experiment for keeping can be achieved plurality of specifications hydraulic pump in the case that other modules are constant.
Description of the drawings
Fig. 1 is the operation principle schematic diagram of present example 1.
Fig. 2 is the operation principle schematic diagram of present example 2.
In figure：
1st, energy recovery module；2nd, load-on module；3rd, power elder generation guide module；4th, rectifier bridge；5th, refrigerating module；6th, it is oily
Case；7th, power take-off module；
10th, the first motor；11st, first axle；12nd, first gear；13rd, the second axis；14th, freewheel clutch；15th, the second tooth
Wheel；
20th, the second torque and speed sensors；21st, third cooler；22nd, third flow sensor；23rd, third pressure sensing
Device；24th, third check valve；25th, variable displacement motor；
30th, proportional pressure-reducing valve；31st, the 5th overflow valve；32nd, accumulator；33rd, pressure switch；34th, the 4th check valve；35、
Second motor；36th, guide's oil pump
50th, flushing valve；51st, the 4th overflow valve；52nd, the second cooler；53rd, the second oil filter；
70th, third overflow valve；71st, the second overflow valve；72nd, the first overflow valve；73rd, the first check valve；74th, slippage pump；75、
Second check valve；76th, first flow sensor；77th, the first oil filter；78th, hydraulic pump；79th, second pressure sensor；710th,
Two flow sensors；711st, the first cooler；712nd, first pressure sensor；713rd, the first torque and speed sensors.
Specific embodiment
1st example
The present invention is explained in detail below in conjunction with the accompanying drawings：
Refering to Figure 1, a kind of energy-saving hydraulic pump endurance test bed for hydraulic analog loading, including power
First guide module 3, power take-off module 7, refrigerating module 5, rectifier bridge 4, load-on module 2, energy recovery module 1 and fuel tank
6.Power elder generation guide module 3 is connect with the load-on module 2 by proportional pressure-reducing valve 30.The liquid of the power take-off module 7
78 input shaft of press pump is coaxial by the first torque and speed sensors 713 and the first axle 11 of energy recovery module 1.The power is defeated
The output hydraulic pressure oil for going out module 1 enters load-on module 2, and maintain the variable displacement motor from load-on module 2 always by rectifier bridge 4
25 fixation hydraulic fluid port input hydraulic pressure oil.The output hydraulic pressure oil of the power take-off module 7 can flow back to oil by refrigerating module 5
Case.25 output shaft of variable displacement motor of the load-on module 2 and the second axis 13 of energy recovery module 1 and freewheel clutch 14 are same
Axis.
Power elder generation guide module 3 is by proportional pressure-reducing valve 30, the 5th overflow valve 31, accumulator 32, pressure switch 33,
Four check valves 34, the second motor 35 and guide's oil pump 36 form.Guide's oil pump 36 and the second motor 32 are coaxial；Described 5th
Overflow valve 31 is used for controlling the output pressure of guide's oil pump 33；Guide's oil pump 33 passes through the 4th check valve 34 and the 5th overflow
Valve 31, proportional pressure-reducing valve 30, accumulator 32, pressure switch 33 connect；Proportional pressure-reducing valve 30 gives 25 pressure supply of variable displacement motor.
The power take-off module 7 is passed by hydraulic pump 78, slippage pump 74, the first torque and speed sensors 713, first pressure
Sensor 712, second pressure sensor 79, the first cooler 711, first flow sensor 76, second flow sensor 710,
One oil filter 77, the first check valve 73, the second check valve 75, the first overflow valve 72, the second overflow valve 71 and third overflow valve 70
Composition；The hydraulic pump 78 and slippage pump 74 are coaxial；78 unloading port of hydraulic pump is connect by fluid pressure line with fuel tank 6；Institute
Stating on fluid pressure line has the first cooler 711；The hydraulic oil filtered by the first oil filter 77 is entered in slippage pump 74, then lead to
It crosses 73/ second check valve 75 of the first check valve and supplements hydraulic oil to system, extra hydraulic oil passes through the third overflow valve 70
Return to fuel tank 6；First overflow valve, 72/ second overflow valve 71 is safety valve, for controlling the output pressure of hydraulic pump；It is described
76/ second flow sensor 710 of first flow sensor is used for surveying the output flow of the hydraulic pump；The first pressure sensing
712/ second pressure sensor 79 of device is used for surveying the output pressure of the hydraulic pump 78, while the second pressure sensor 79/
First pressure sensor 712 is used for surveying the input pressure in the 78 place circuit of hydraulic pump；First torque and speed sensors
713 are used for surveying the rotational speed and torque of 78 input shaft of hydraulic pump.
The refrigerating module 5 includes flushing valve 50, the 4th overflow valve 51, the second cooler 52 and the second oil filter 53.System
Hot hydraulic oil passes through flushing valve 50 in system, and the predetermined pressure for reaching the 4th overflow valve 51 can drain into fuel tank 6 through fluid pressure line,
There are the second cooler 52 and the second oil filter 53 on the fluid pressure line, second oil filter 53 is used to control the cleaning of fluid
Degree complies with defined test requirements document.
The rectifying valve block that the rectifier bridge 4 is made of four check valves.
The load-on module 2 by variable displacement motor 25 (present invention using the H2V number of variables motors of SAMHYDRAULIK companies as
Example), the second torque and speed sensors 20, third cooler 21, third flow sensor 22, third pressure sensor 23 and third
Check valve 24 forms.The variable displacement motor 25 has the relevant automatic variable characteristic of high pressure；25 emptying of variable displacement motor
Mouth is connect by fluid pressure line with the fuel tank 6；There is third cooler 21 on the fluid pressure line；The third check valve 24 is
It is anti-to be emptied check valve；The third flow sensor 22 is used for surveying the input flow rate of the variable displacement motor；The third pressure passes
Sensor 23 is used for surveying the input pressure of the variable displacement motor 25；Second torque and speed sensors 20 are used for surveying the variable horse
Up to the rotational speed and torque of 25 output shafts.
The energy recovery module 1 is by the first motor 10, first axle 11, first gear 12, the second axis 13, freewheel clutch
14 and second gear 15 form.First motor 10 is coaxially connected firmly with first axle 11；The first gear 12 and second
Gear 15 engages, and first gear 12 is fixed on by key in first axle 11；The freewheel clutch 14 passes through with second gear 15
Voussoir coordinates, and when freewheel clutch 14 with second gear 15 without relative motion, steering is identical, and rotating speed is equal, could realize torque
It transmits, is otherwise relative motion；The freewheel clutch 14 and the second axis 13 are coaxial, and freewheel clutch 14 is fixed on by key
On second axis 13.
Working process and principle of the invention are as follows：
The oil pressure relief of the 5th overflow valve 31 is controlled first, starts the second motor 35, and guide's oil pump 36 is carried to accumulator 32
For hydraulic energy, accumulator 32 provides stable low pressure control to 30 pressure oil port of proportional pressure-reducing valve and the pressure oil port of variable displacement motor 25
Liquefaction liquid.The pressure of 33 monitoring system of pressure switch, the working condition of control guide oil pump 36.For accumulator 32 is avoided to reveal
Hydraulic oil flow back in guide's oil pump 36, guide oil pump 36 outlet set the 4th check valve 34.Freewheel clutch 14 with
Second gear 15 is in opposite sliding mode, i.e. the second axis 13 drives freewheel clutch 14 to dally.Start the first motor 10, first
Motor 10 rotates and the hydraulic pump 78 on coaxial is driven to work, and slippage pump 74 is by the liquid of the first oil filter of process 77 in fuel tank 6
Pressure oil supplies hydraulic oil for system.Adjusting the discharge capacity of hydraulic pump 78 makes hydraulic oil pass through 76/ second flow of first flow sensor biography
22 entering variable motor of sensor 710 and third flow sensor.And when the first motor 10 starts to start, the pressure of system approaches
In zero, variable displacement motor 25 is in the state of minimum injection rate, and the discharge capacity of hydraulic pump 78 is more than 25 discharge capacity of variable displacement motor, causes hydraulic pump
78 outlet fluid are compressed in 25 entrance of variable displacement motor, and 25 discharge capacity of variable displacement motor is to ensure as pressure change is adjusted
System steady operation.Meanwhile freewheel clutch 14 and second gear 15 are without relative motion so that the second axis 13 can drive the second tooth
15 rotation of wheel.Variable displacement motor 25 by the second torque and speed sensors 20, the second axis 13, freewheel clutch 14, second gear 15,
First gear 12 and first axle 11 so as to which hydraulic pump 78 be driven to rotate, achieve the effect that energy regenerating, reduce the output work of motor
Rate realizes energy-efficient purpose.
Variable displacement motor 25 has automatic variable characteristic, can automatically keep discharge capacity matching capacity with hydraulic pump 78, together
When this closed-loop system major loop control pressure can be surveyed by 79/ first pressure sensor 712 of second pressure sensor, using than
The controllable characteristic of example 30 output pressure of pressure reducing valve, regulating system operating pressure carry out hydraulic analog according to the requirement specification of experiment
Load test, to ensure being normally carried out for durability test.
When 78 oil inlet and outlet direction of hydraulic pump changes, since system circuit is equipped with rectifier bridge 4, make hydraulic pressure system
System ensures the normal assays of system from maloperation caused by due to human factor etc..
It please refers to shown in Fig. 2：
The present invention can test plurality of specifications hydraulic pump under conditions of keeping other modules constant.This implementation is real
Example can be not only used for loading bidirectional hydraulic pump, and one-way hydraulic can also be pumped and carry out load test.Compare with example 1
Compared with basic experiment principle is constant.The endurance test bed of the hydraulic analog loading of other hydraulic pumps such as one-way hydraulic pump mainly wraps
Include power elder generation guide module 3, power take-off module 7, rectifier bridge 4, load-on module 2, energy recovery module 1 and fuel tank 6.Institute
Power elder generation guide module 3 is stated to connect by proportional pressure-reducing valve 30 with the load-on module 2.The hydraulic pump of the power take-off module 7
78 input shafts are coaxial by the first torque and speed sensors 713 and the first axle 11 of energy recovery module 1.The hydraulic pump 78 is
One-way hydraulic pumps.The output hydraulic pressure oil of the power take-off module 1 enters load-on module 2 by rectifier bridge 4, and maintains always
From the fixation hydraulic fluid port input hydraulic pressure oil of the variable displacement motor 25 of load-on module 2.The output hydraulic pressure oil of the power take-off module 7 can be straight
It connects and flows back to fuel tank.25 output shaft of variable displacement motor of the load-on module 2 and the second axis 13 of energy recovery module 1 and overdrive clutch
Device 14 is coaxial.
Power elder generation guide module 3 is by proportional pressure-reducing valve 30, the 5th overflow valve 31, accumulator 32, pressure switch 33,
Four check valves 34, the second motor 35 and guide's oil pump 36 form.Guide's oil pump 36 and the second motor 32 are coaxial；Described 5th
Overflow valve 31 is used for controlling the output pressure of guide's oil pump 33；Guide's oil pump 33 passes through the 4th check valve 34 and the 5th overflow
Valve 31, proportional pressure-reducing valve 30, accumulator 32, pressure switch 33 connect；Proportional pressure-reducing valve 30 gives 25 pressure supply of variable displacement motor.
The power take-off module 7 by hydraulic pump 78, the first torque and speed sensors 713, first pressure sensor 712,
First cooler 711, first flow sensor 76, the first oil filter 77 and the second overflow valve 71 form；The hydraulic pump 78
Hydraulic oil arises directly from fuel tank 6, and is filtered by the first oil filter 77；Second overflow valve 71 is safety valve, for controlling
The output pressure of hydraulic pump processed；The first flow sensor 76 is used for surveying the output flow of the hydraulic pump；First pressure
Force snesor 712 is used for surveying the output pressure of the hydraulic pump 78；First torque and speed sensors 713 are used for surveying the liquid
The rotational speed and torque of 78 input shaft of press pump.
The rectifying valve block that the rectifier bridge 4 is made of four check valves.
The load-on module 2 by variable displacement motor 25 (present invention using the H2V number of variables motors of SAMHYDRAULIK companies as
Example), the second torque and speed sensors 20, third cooler 21, third flow sensor 22, third pressure sensor 23 and third
Check valve 24 forms.The variable displacement motor 25 has the relevant automatic variable characteristic of high pressure；25 emptying of variable displacement motor
Mouth is connect by fluid pressure line with the fuel tank 6；There is third cooler 21 on the fluid pressure line；The third check valve 24 is
It is anti-to be emptied check valve；The third flow sensor 22 is used for surveying the input flow rate of the variable displacement motor；The third pressure passes
Sensor 23 is used for surveying the input pressure of the variable displacement motor 25；Second torque and speed sensors 20 are used for surveying the variable horse
Up to the rotational speed and torque of 25 output shafts.
The energy recovery module 1 is by the first motor 10, first axle 11, first gear 12, the second axis 13, freewheel clutch
14 and second gear 15 form.First motor 10 is coaxially connected firmly with first axle 11；The first gear 12 and second
Gear 15 engages, and first gear 12 is fixed on by key in first axle 11；The freewheel clutch 14 passes through with second gear 15
Voussoir coordinates, and when freewheel clutch 14 with second gear 15 without relative motion, steering is identical, and rotating speed is equal, could realize torque
It transmits；The freewheel clutch 14 and the second axis 13 are coaxial, and freewheel clutch 14 is fixed on by key on the second axis 13.
Claims (1)
1. a kind of energy-saving hydraulic pump endurance test bed with hydraulic analog loading, it is characterised in that：It is by power guide
Module (3), power take-off module (7), refrigerating module (5), rectifier bridge (4), load-on module (2), energy recovery module (1) with
And fuel tank (6)；Power elder generation guide module (3) is connect with load-on module (2) by proportional pressure-reducing valve (30)；Power take-off module (7)
Hydraulic pump (78) input shaft it is same by the first axle (11) of the first torque and speed sensors (713) and energy recovery module (1)
Axis；The output hydraulic pressure oil of power take-off module (7) is by rectifier bridge (4) into load-on module (2)；Power take-off module (7)
Output hydraulic pressure oil fuel tank (6) can be flowed back to by refrigerating module (5)；Variable displacement motor (25) output shaft of load-on module (2) with
The second axis (13) and freewheel clutch (14) of energy recovery module (1) are coaxial；
Power elder generation guide module (3) is by proportional pressure-reducing valve (30), the 5th overflow valve (31), accumulator (32), pressure switch
(33), the 4th check valve (34), the second motor (35) and guide's oil pump (36) composition；Guide's oil pump (36) and the second motor (35
) coaxial；5th overflow valve (31) is for controlling the output pressure of guide's oil pump (36)；Guide's oil pump (36) is unidirectional by the 4th
Valve (34) is connect with the 5th overflow valve (31), proportional pressure-reducing valve (30), accumulator (32), pressure switch (33)；Ratio depressurizes
Valve (30) gives variable displacement motor (25) pressure supply；
The power take-off module (7) is by hydraulic pump (78), slippage pump (74), the first torque and speed sensors (713), the first pressure
Force snesor (712), second pressure sensor (79), the first cooler (711), first flow sensor (76), second flow
Sensor (710), the first oil filter (77), the first check valve (73), the second check valve (75), the first overflow valve (72), second
Overflow valve (71) and third overflow valve (70) composition；Hydraulic pump (78) and slippage pump (74) are coaxial；Hydraulic pump (78) unloading port leads to
Fluid pressure line is crossed to connect with fuel tank (6)；There is the first cooler (711) on fluid pressure line；By the first oil filter (77) filtering
Hydraulic oil is entered in slippage pump (74), then supplements hydraulic pressure to system by the first check valve (73) and the second check valve (75)
Oil, extra hydraulic oil return to fuel tank (6) by third overflow valve (70)；First overflow valve (72) and the second overflow valve (71) are
Safety valve, for controlling the output pressure of hydraulic pump；First flow sensor (76) and second flow sensor (710) are for surveying
The output flow of hydraulic pump；First pressure sensor (712) and second pressure sensor (79) are for surveying the defeated of hydraulic pump (78)
Go out pressure, while second pressure sensor (79) and first pressure sensor (712) are for circuit where surveying hydraulic pump (78)
Input pressure；First torque and speed sensors (713) are for surveying the rotational speed and torque of hydraulic pump (78) input shaft；
The refrigerating module (5) includes flushing valve (50), the 4th overflow valve (51), the second cooler (52) and the second oil filter
(53)；Hot hydraulic oil passes through flushing valve (50) in system, and the predetermined pressure for reaching the 4th overflow valve (51) can be through hydraulic tube
Road drains into fuel tank (6), there is the second cooler (52) and the second oil filter (53) on fluid pressure line, and the second oil filter (53) is for controlling
The cleannes of liquefaction liquid；
The rectifying valve block that the rectifier bridge (4) is made of four check valves；
The load-on module (2) is by variable displacement motor (25), the second torque and speed sensors (20), third cooler (21), third
Flow sensor (22), third pressure sensor (23) and third check valve (24) composition；Variable displacement motor (25) has high pressure phase
The automatic variable characteristic of pass；Variable displacement motor (25) unloading port is connect by fluid pressure line with fuel tank (6)；Have on fluid pressure line
Third cooler (21)；Third check valve (24) is to prevent being emptied check valve；Third flow sensor (22) is for surveying variable displacement motor
Input flow rate；Third pressure sensor (23) is for surveying the input pressure of variable displacement motor (25)；Second torque and speed sensors
(20) for surveying the rotational speed and torque of variable displacement motor (25) output shaft；
The energy recovery module (1) by the first motor (10), first axle (11), first gear (12), the second axis (13), surmount
Clutch (14) and second gear (15) composition；The first motor (10) with first axle (11) is coaxial connects firmly；First gear
(12) it is engaged with second gear (15), first gear (12) is fixed on by key in first axle (11)；Freewheel clutch (14) with
Second gear (15) is coordinated by voussoir, when freewheel clutch (14) and second gear (15) are without relative motion, turn to it is identical,
Rotating speed is equal, could realize that torque is transmitted, otherwise be relative motion；Freewheel clutch (14) coaxially, surpasses with the second axis (13)
More clutch (14) is fixed on by key on the second axis (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610332898.1A CN105782166B (en) | 2016-05-18 | 2016-05-18 | Energy-saving hydraulic with hydraulic analog loading pumps endurance test bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610332898.1A CN105782166B (en) | 2016-05-18 | 2016-05-18 | Energy-saving hydraulic with hydraulic analog loading pumps endurance test bed |
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| Publication Number | Publication Date |
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| CN105782166A CN105782166A (en) | 2016-07-20 |
| CN105782166B true CN105782166B (en) | 2018-06-22 |
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| CN106015177B (en) * | 2016-08-05 | 2018-03-13 | 芜湖中意液压科技股份有限责任公司 | Power Recovery tilt cylinder motor durability testing system |
| CN107676339B (en) * | 2017-11-03 | 2019-07-26 | 北京天地玛珂电液控制系统有限公司 | A kind of high-pressure hydraulic pump test hydraulic system and test method |
| CN109654009B (en) * | 2019-02-21 | 2020-04-17 | 燕山大学 | Hydraulic pump motor performance test system and test method thereof |
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| US4798086A (en) * | 1987-03-23 | 1989-01-17 | Caterpillar Inc. | Test bench for testing hydraulic pumps and motors |
| JP3363346B2 (en) * | 1997-05-29 | 2003-01-08 | マルマテクニカ株式会社 | Energy recovery type hydraulic testing machine |
| CN202545421U (en) * | 2012-03-31 | 2012-11-21 | 徐州铭硕机械科技有限公司 | Self-adaptive power recovery testing table for hydraulic pump |
| CN203430759U (en) * | 2013-08-08 | 2014-02-12 | 宁波恒力液压股份有限公司 | Hydraulic pump durability test system based on power recovery and inverter technologies |
| CN103511396B (en) * | 2013-09-03 | 2016-01-20 | 燕山大学 | Based on oil hydraulic pump and the oil hydraulic motor reliability test of power recovery technology |
| CN103511397B (en) * | 2013-09-03 | 2016-06-15 | 燕山大学 | A kind of axial plunger pump and motor reliability test method |
| CN104514761B (en) * | 2014-12-19 | 2017-03-15 | 长安大学 | A kind of hydraulic pump that can be consumed energy with recovery test and motor test rig |
| CN205654642U (en) * | 2016-05-18 | 2016-10-19 | 吉林大学 | Energy -saving hydraulic pump durability test platform with hydraulic pressure analog loading |
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