CN105805066B - Double motor type energy recovery test stand for hydraulic net-lifting winch - Google Patents
Double motor type energy recovery test stand for hydraulic net-lifting winch Download PDFInfo
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- CN105805066B CN105805066B CN201610296383.0A CN201610296383A CN105805066B CN 105805066 B CN105805066 B CN 105805066B CN 201610296383 A CN201610296383 A CN 201610296383A CN 105805066 B CN105805066 B CN 105805066B
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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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/005—Testing of complete machines, e.g. washing-machines or mobile phones
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M99/00—Subject matter not provided for in other groups of this subclass
- G01M99/007—Subject matter not provided for in other groups of this subclass by applying a load, e.g. for resistance or wear testing
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The present invention relates to a kind of double motor type energy recovery test stand for hydraulic net-lifting winch, quality inspection and reliability testing are carried out dedicated for hydraulic net-lifting winch.Motor, torquemeter, gearbox, loading reel, suspension bracket fixed pulley, flowmeter and pressure transmitter are loaded including auxiliary pump, safety valve, three electro-hydraulic reversing valves, proportional pressure control valve, huge discharge loading motor, small displacements, it is characterized in that the testing stand, which is double motor, adjusts form, operating mode is batched as reference using the forward direction of hydraulic net-lifting winch, the oil-out of double loading motors all connects tie point, and the tie point converges to the oil circuit of double loading motors in the in-line of hydraulic winch motor.In actual test operating mode, the excursion that the energy recovery test stand for adjusting form using double motor can solve single motor displacement well can not meet whole this problem of system loads test request, expand the displacement variation scope of loading motor, the permanent torque output of system and constant speed control this test request are met, and realizes that energy regenerating is recycled.
Description
Technical field
It is used to carry out quality inspection to hydraulic net-lifting winch and fishing boat hauling equipment the present invention relates to one kind and reliability is surveyed
The experimental rig of examination.
Background technology
Hydraulic net-lifting winch is that important on fishing boat fishes for one of equipment.In view of the operating mode of marine fishing operation is special, no
But in functionally having higher requirements for hydraulic net-lifting winch, and there is in its performance higher reliability requirement.Therefore it is new
The hydraulic net-lifting winch sample of trial-production must pass through performance test and life-span durable test.Meanwhile, before hydraulic net-lifting winch dispatches from the factory
Must complete can full scale ship application after relevant authentication experiment.Hydraulic net-lifting winch testing stand is special to hydraulic net-lifting winch progress
Life test and the experimental rig of performance test, by simulating real work situation（Main analog lineoutofservice signal pull and rope speed）,
Quality inspection and reliability testing are carried out to the hydraulic net-lifting winch of various models.
The principle recycled based on energy regenerating, studies double motor type energy recovery test stand for hydraulic net-lifting winch, will be double
The hydraulic oil of loading motor output is recycled, so as to realize that system capacity is reclaimed.The energy regenerating test system has higher
Actual application value and economic value, can be generalized in other large hydraulics lifting equipment.
Because single motor type energy recovery test stand for hydraulic net-lifting winch can not fully meet niggerhead with specified permanent torsion
The system loading requirements of the specified permanent rotating speed of square.And the testing stand for using double motor to adjust form can solve this well and ask
Topic, expands the displacement variation scope of loading motor, come the displacement variation scope that makes up single motor regulating system it is small it is brought not
Foot, meets system loading requirements.
The content of the invention
It is an object of the invention to provide a kind of double motor type energy recovery test stand for hydraulic net-lifting winch, solve due to list
Motor type energy recovery test stand for hydraulic net-lifting winch can not fully meet niggerhead with the specified permanent specified permanent rotating speed work of moment of torsion
The system loading requirements of work, while realizing the recycling of energy.
A kind of double motor type energy recovery test stand for hydraulic net-lifting winch that the present invention is provided, is twisted dedicated for hydraulic pressure hauling
Car carries out quality inspection and reliability testing, and the hydraulic net-lifting winch 16 includes hydraulic winch motor 7, reduction box 10 and winch
Reel 14, the pipeline that hydraulic winch motor 7 is connected by the connection winch reel 14 of reduction box 12, reduction box 12 and niggerhead 14
It is provided with speed probe 13；It is auxiliary that the double motor type energy recovery test stand for hydraulic net-lifting winch includes the first auxiliary pump 1, second
Help pump 2, the first proportional pressure control valve 6, the 3rd proportional pressure control valve 18, tie point, the second branch road and the 3rd branch road, the second branch road and
After 3rd branch circuit parallel connection, tie point is connected to, the second branch road is provided with the first proportional pressure control valve 6, for adjusting this first
The pressure on road；3rd branch road is provided with the 3rd proportional pressure control valve 18；First auxiliary pump 1 connects tie point, is that tie point is mended
Oil；The testing stand also includes the second proportional pressure control valve 17, huge discharge loading motor 8, small displacement loading motor 19, the first moment of torsion
Instrument 9, the second torquemeter 20, gearbox 10, loading reel 11 and suspension bracket fixed pulley 15.Wherein：
Huge discharge loads motor 8 and the oil-out of small displacement loading motor 19 connects tie point respectively, the tie point
The oil circuit that huge discharge is loaded into motor 8 and small displacement loading motor 19 is convergeed in the in-line of hydraulic winch motor 7, according to adding
Moyor characteristic curve is carried, every layer of huge discharge loading motor 8 of optimum organization and small displacement load the displacement value of motor 19, made big
Discharge capacity load motor 8 and small displacement loading motor 19 maintain its high efficient area between work, and meet the permanent torque output of system and
The system loading requirements of constant speed control；Huge discharge loads motor 8 and connects gearbox 10 by the first torquemeter 9, and small displacement adds
Carry motor 19 and gearbox 10 is connected by the second torquemeter 20；The connection loading reel 11 of gearbox 10, loading reel 11 passes through frame
The connection winch reel 14 of fixed pulley group 15；Second auxiliary pump 2 connects huge discharge loading motor 8 and small displacement loading motor 19 respectively
Oil inlet, be huge discharge loading motor 8 and small displacement loading the fuel feeding of motor 19.
In the present invention, the 3rd proportional pressure control valve 18 is provided with the 3rd branch road, in reverse rope closing operating mode, is overflow with the first ratio
Stream valve 6 is used cooperatively.
In the present invention, flowmeter F1 is additionally provided with the second branch road, flowmeter F1 is used to measure the first proportional pressure control valve 6
Spillway discharge, its measured value is used for the displacement control of the first auxiliary pump 1.
In the present invention, the first connection huge discharge loading motor 8 and small displacement loading motor 19 of three electro-hydraulic reversing valves 5
Oil inlet, second mouthful connection the second auxiliary pump 2, the 3rd mouthful connection hydraulic winch motor 7, the 4th mouthful connection the second overflow valve
17；When forward direction is batched, three electro-hydraulic reversing valves 5 are in right position, and the second auxiliary pump 2 gives huge discharge through three electro-hydraulic reversing valves 5
Plus horse and the small displacement loading low pressure oil supply of motor 19 are carried up to 8, while the output flow of hydraulic winch motor 7 is through three electro-hydraulic reversing valves
5th, the oil return box of the second overflow valve 17；When reverse rope closing, three electro-hydraulic reversing valves 5 are in left position, and the second auxiliary pump 2 is through three electricity
Liquid reversal valve 5 gives the low pressure oil supply of hydraulic winch motor 7, while huge discharge adds what is exported up to 8 load horses and small displacement loading motor 19
Flow is through three electro-hydraulic reversing valves 5, the oil return box of the second overflow valve 17.
First pressure transmitter P is connected in the present invention, in tie point1, first pressure transmitter P1For measuring first
The pressure on road.
In the present invention, the exit of hydraulic winch motor 7 is provided with second pressure transmitter P2, when forward direction is batched, second
Pressure transmitter P2Outlet pressure for measuring hydraulic winch motor 7；When reverse rope closing, for measuring the second auxiliary pump 2
Outlet pressure, i.e. hydraulic winch motor 7 inlet pressure.
In the present invention, the 3rd pressure transmitter P is provided with the outlet pressure of the second auxiliary pump 23, when forward direction is batched, the
Three pressure transmitter P3Outlet pressure for measuring the second auxiliary pump 2, i.e., the inlet pressure of two loading motors；When reverse rope closing
When, for measuring two outlet pressures for loading motor.Judge the 3rd pressure transmitter P3Measured value whether produce pressure pulse,
The situation of change of the judgement system number of plies, so as to change the displacement value of two loading motors.
The beneficial effects of the present invention are：
（1）The hydraulic oil of double loading motor outputs is recycled, so as to realize that system capacity is reclaimed.
（2）Because single motor type energy recovery test stand for hydraulic net-lifting winch can not fully meet niggerhead with specified perseverance
The system loading requirements of the specified permanent rotating speed of moment of torsion.And the testing stand for using double motor to adjust form can solve this well
Problem, expands the displacement variation scope of loading motor, small brought the displacement variation scope that makes up single motor regulating system
Deficiency, meets system loading requirements.（3）The energy regenerating test system has higher actual application value and economic value, can
To be generalized in other large hydraulics lifting equipment.
Brief description of the drawings
Fig. 1 is the hydraulic scheme of double motor type energy recovery test stand for hydraulic net-lifting winch.
Label in figure：The auxiliary pumps of 1- first, the auxiliary pumps of 2- second, the safety valves of 3- first, the safety valves of 4- second, 5-
Three electro-hydraulic reversing valves, the proportional pressure control valves of 6- first, 7- hydraulic winch motors, 8- huge discharges loading motor, 9- first is turned round
Square instrument, 10- gearboxes, 11- loading reels, 12- reduction boxes, 13- speed probes, 14- niggerheads, 15- suspension brackets
Fixed pulley group, 16- hydraulic net-lifting winch, the proportional pressure control valves of 17- second, the proportional pressure control valves of 18- the 3rd, 19- small displacements add
Carry motor, the torquemeters of 20- second, F1- flowmeter, P1、P2And P3- it is respectively first, second, and third pressure transmitter.
Embodiment
Now depending on accompanying drawing and combine following specific embodiments the present invention will be further described.
Embodiment 1：
As shown in figure 1, the first auxiliary pump 1 is when carrying out hydraulic wireline winch experiment, the hydraulic oil of the first auxiliary pump 1 supply is main
The vent flow and the first ratio of horse and small displacement loading motor 19 are carried for supplementing hydraulic winch motor 7, huge discharge loading motor 8
The spillway discharge of the example proportional pressure control valve 18 of overflow valve 6 or the 3rd.Adjust the charge oil pressure of the first auxiliary pump 1, it is possible to adjust steel wire
Rope tension.
Second auxiliary pump 2 is when forward direction is batched, and the first auxiliary pump 2 is that huge discharge loads motor 8 and small displacement loading motor
19 supplement low pressure oils, promote whole system Positive work；In reverse rope closing, the first auxiliary pump 2 is that hydraulic winch motor 7 is supplemented
Low pressure oil, promotes whole system antiport.Its outlet pressure is determined by system operation resistance.By adjusting the first auxiliary pump
2 output flow, can adjust the rotating speed of hydraulic winch motor 7, so as to adjust the coiling speed of steel wire rope.
First safety valve 3 is used to protect the first auxiliary pump 1.Second safety valve 4 is used to protect the second auxiliary pump 2.
Three electro-hydraulic reversing valves 5 are used for the positive conversion batched with reverse two kinds of operating modes of rope closing.When forward direction is batched, three
Electro-hydraulic reversing valve 5 is in right position；When reverse rope closing, three electro-hydraulic reversing valves 5 are in left position.
First proportional pressure control valve 6 makes the outlet pressure of the first auxiliary pump 1 be set up equal to it by keeping the overflow of low discharge
Pressure.The set pressure of the first proportional pressure control valve 6 is adjusted, the outlet pressure of the first auxiliary pump 1, that is, tie point is can adjust
Pressure, and then adjust steel wire rope pulling force.
Huge discharge loading motor 8 carries horse and small displacement loading motor 19 chooses the variable displacement motor of electrical-liquid control.When just
To when batching, two loading motors are as system load, and its input pressure is exactly the outlet pressure of the second auxiliary pump 2, and its is fuel-displaced
Pressure (being set up by the first proportional pressure control valve 6) is exactly the input pressure of hydraulic winch motor 7.When reverse rope closing, two
The input pressure (being set up by the first proportional pressure control valve 6 or the 3rd proportional pressure control valve 18) for loading motor is exactly hydraulic wireline winch
Motor 7 goes out oil pressure, and it goes out oil pressure and determined by the set pressure of the second proportional pressure control valve 17.The row of two loading motors
Value optimizes according to system loading requirements to be determined.
First torquemeter 9 is arranged between gearbox 10 and huge discharge loading motor 8, for detecting that huge discharge loads motor
8 rotating speed and torque.
Gearbox 10 is arranged between two loading motors and niggerhead 14, and its speed increasing ratio is according in whole test process
The rotating speed of two high speed shafts of middle gearbox 10 is no more than determined by the maximum permissible revolution of loading motor.When forward direction is batched,
Hydraulic winch motor 7 slows down to increase through reduction box 12 to be turned round, and drives niggerhead 14, then by steel wire rope, through suspension bracket fixed pulley group 15,
Loading reel 11 is driven, drops and turns round through the speedup of gearbox 10, driving two loads motor.And when reverse rope closing operating mode, gearbox 10
It is used as reduction box.
Speed probe 13 is used for the rotating speed for detecting niggerhead 14, the output flow of the second auxiliary pump 2 is controlled, so as to control
The speed of steel wire rope processed.
Hydraulic net-lifting winch 16 is mainly made up of hydraulic winch motor 7, reduction box 12, niggerhead 14 etc..
Second proportional pressure control valve 17, when forward direction is batched, its set pressure minimum back pressure according to needed for hydraulic winch motor 7
Determined；When reverse rope closing, its set pressure minimum back pressure according to needed for two loading motors is determined.
3rd proportional pressure control valve 18 does not work typically, and its set pressure is higher than the set pressure of the first proportional pressure control valve 6, only
Worked when reverse rope closing and the first auxiliary pump 1 are worked with minimum injection rate, its set pressure is determined by rope closing pulling force, less than
The set pressure of one proportional pressure control valve 6.
Second torquemeter 20 is arranged between gearbox 10 and small displacement loading motor 19, for detecting that small displacement loads horse
Rotating speed and torque up to 19.
Flowmeter F1The spillway discharge of measurement scale overflow valve 6, its measured value is used for the displacement control of the first auxiliary pump 1.
First pressure transmitter P1Pressure for measuring tie point.
Second pressure transmitter P2, when forward direction is batched, the outlet pressure for measuring hydraulic winch motor 7；When reverse
During rope closing, the inlet pressure of outlet pressure, i.e. hydraulic winch motor 7 for measuring the second auxiliary pump 2.
3rd pressure transmitter P3, when forward direction is batched, the outlet pressure for measuring the second auxiliary pump 2, i.e., two loadings
The inlet pressure of motor；When reverse rope closing, for measuring two outlet pressures for loading motor.Judge the 3rd pressure transmitter P3
Measured value whether produce pressure pulse, the situation of change of the judgement system number of plies, so as to change the displacement value of two loading motors.
With continued reference to Fig. 1, hydraulic work system flow is as follows：
Forward direction batches the main process that the course of work is system testing, in this process, and system records the drawing of steel wire rope
Power, speed, detect whether the hydraulic net-lifting winch performance reaches requirement；The reverse rope closing course of work is system secondary process, is
Feature operating mode, realization reversely collects steel wire rope, is that forward direction is batched operating mode and prepared next time.
When system batches operating mode in forward direction, three electro-hydraulic reversing valves 5 are in right position；The tune of first proportional pressure control valve 6
Constant-pressure is determined according to lineoutofservice signal pull；3rd proportional pressure control valve 18 does not work；Hydraulic winch motor 7 slows down through reduction box 12
Increase and turn round, drive niggerhead 14, then by steel wire rope, through suspension bracket fixed pulley group 15, drive loading reel 11, increase through gearbox 10
Prompt drop is turned round, and driving two loads motor, and the flow of two loading motor outputs supplies hydraulic winch motor 7 by tie point, realized
Forward energy is reclaimed.The hydraulic oil of first auxiliary pump 1 supply is mainly used in supplement hydraulic winch motor 7, huge discharge loading motor 8
The vent flow of motor 19 and the spillway discharge of the first proportional pressure control valve 6 are loaded with small displacement, passes through flowmeter F1Detection first is compared
The spillway discharge of example overflow valve 6, so as to adjust the discharge capacity of the first auxiliary pump 1.Second auxiliary pump 2 is that huge discharge loads motor 8 and small
The discharge capacity loading supplement low pressure oil of motor 19, promotes whole system Positive work.Second auxiliary pump 2 is controlled by speed probe 13
Discharge capacity, so as to control the speed of steel wire rope.Judge the 3rd pressure transmitter P3Measured value whether produce pressure pulse, differentiate system
The situation of change for the number of plies of uniting, the two loading motor displacement values optimized during according in the corresponding number of plies, changes two and loads motor
Displacement value.
When system is in reverse rope closing operating mode, three electro-hydraulic reversing valves 5 are in left position；The tune of first proportional pressure control valve 6
Constant-pressure is determined according to lineoutofservice signal pull；3rd proportional pressure control valve 18 is only in reverse rope closing and the first auxiliary pump 1 with most float
Worked during amount work, its set pressure is less than the set pressure of proportional pressure control valve 6.Two loading motors slow down through gearbox 10 to be increased
Turn round, drive loading reel 11, then by steel wire rope, through suspension bracket fixed pulley group 15, niggerhead 14 is driven, through the speedup of reduction box 12
Drop is turned round, and drives hydraulic winch motor 7, and the flow that hydraulic winch motor 7 is exported loads motor by tie point supply two, realized
Backward energy is reclaimed.The hydraulic oil of first auxiliary pump 1 supply is mainly used in supplement hydraulic winch motor 7, huge discharge loading motor 8
The vent flow of motor 19 and the spillway discharge of the first proportional pressure control valve 6 or the 3rd proportional pressure control valve 18 are loaded with small displacement.If the
When one proportional pressure control valve 6 works, pass through flowmeter F1The spillway discharge of the first proportional pressure control valve 6 is detected, so as to adjust the first auxiliary
The discharge capacity of pump 1；If the 3rd proportional pressure control valve 18 works, the first auxiliary pump 1 is worked with minimum injection rate value.Second auxiliary pump 2 is
Hydraulic winch motor 7 supplements low pressure oil, promotes whole system antiport.Second auxiliary pump 2 is controlled by speed probe 13
Discharge capacity, so as to control the speed of steel wire rope.Judge the 3rd pressure transmitter P3Measured value whether produce pressure pulse, differentiate system
The situation of change for the number of plies of uniting, the two loading motor displacement values optimized during according in the corresponding number of plies, changes two and loads motor
Displacement value.
Claims (7)
1. a kind of double motor type energy recovery test stand for hydraulic net-lifting winch, quality inspection is carried out dedicated for hydraulic net-lifting winch
And reliability testing, the hydraulic net-lifting winch (16) include hydraulic winch motor (7), reduction box (12) and niggerhead
(14), hydraulic winch motor (7) is by reduction box (12) connection winch reel (14), and reduction box (12) and niggerhead (14) are even
The pipeline connect is provided with speed probe (13)；The double motor type energy recovery test stand for hydraulic net-lifting winch includes the first auxiliary
Pump (1), the second auxiliary pump (2), the first proportional pressure control valve (6), the 3rd proportional pressure control valve (18), tie point, the second branch road and
After 3rd branch road, the second branch road and the 3rd branch circuit parallel connection, tie point is connected to, the second branch road is provided with the first proportional pressure control valve
(6), for adjusting the pressure of the tie point；3rd branch road is provided with the 3rd proportional pressure control valve (18)；First auxiliary pump (1) is even
Tie point is connect, is tie point repairing；It is characterized in that the testing stand also includes the second proportional pressure control valve (17), huge discharge
Load motor (8), small displacement loading motor (19), the first torquemeter (9), the second torquemeter (20), gearbox (10), loading volume
Cylinder (11) and suspension bracket fixed pulley (15)；Wherein：
The oil-out of huge discharge loading motor (8) and small displacement loading motor (19) connects tie point respectively, the tie point
The oil circuit that huge discharge is loaded into motor (8) and small displacement loading motor (19) is convergeed in the in-line of hydraulic winch motor (7),
According to loading moyor characteristic curve, every layer of huge discharge loading motor (8) of optimum organization and small displacement load motor (19)
Displacement value, makes huge discharge loading motor (8) and small displacement loading motor (19) be worked between maintaining its high efficient area, and meet system
The system loading requirements of the permanent torque output of system and constant speed control；Huge discharge loading motor (8) is connected by the first torquemeter (9)
Gearbox (10), small displacement loading motor (19) connects gearbox (10) by the second torquemeter (20)；Gearbox (10) is connected
Reel (11) is loaded, loading reel (11) passes through suspension bracket fixed pulley (15) connection winch reel (14)；Second auxiliary pump (2) is respectively
The oil inlet of huge discharge loading motor (8) and small displacement loading motor (19) is connected, is huge discharge loading motor (8) and small displacement
Load motor (19) fuel feeding.
2. a kind of double motor type energy recovery test stand for hydraulic net-lifting winch according to claim 1, it is characterised in that the
The 3rd proportional pressure control valve (18) is provided with three branch roads, in reverse rope closing operating mode, is used cooperatively with the first proportional pressure control valve (6).
3. a kind of double motor type energy recovery test stand for hydraulic net-lifting winch according to claim 1, it is characterised in that the
Flowmeter (F1) is additionally provided with two branch roads, the flowmeter (F1) is used for the spillway discharge for measuring the first proportional pressure control valve (6), and it is measured
It is worth the displacement control for the first auxiliary pump (1).
4. a kind of double motor type energy recovery test stand for hydraulic net-lifting winch according to claim 1, it is characterised in that three
The oil inlet of first connection huge discharge loading motor (8) and small displacement the loading motor (19) of position electro-hydraulic reversing valve (5), second
Mouth the second auxiliary pump of connection (2), the 3rd mouthful of connection hydraulic winch motor (7), the 4th mouthful of the second proportional pressure control valve of connection (17)；When
When forward direction is batched, three electro-hydraulic reversing valves (5) are in right position, and the second auxiliary pump (2) gives huge discharge through three electro-hydraulic reversing valves (5)
Motor (8) and small displacement loading motor (19) low pressure oil supply are loaded, while hydraulic winch motor (7) output flow is electro-hydraulic through three
Reversal valve (5), the second proportional pressure control valve (17) oil return box；When reverse rope closing, three electro-hydraulic reversing valves (5) are in left position, the
Two auxiliary pumps (2) give hydraulic winch motor (7) low pressure oil supply through three electro-hydraulic reversing valves (5), while huge discharge loading motor (8)
The flow of motor (19) output is loaded through three electro-hydraulic reversing valves (5), the second proportional pressure control valve (17) oil return box with small displacement.
5. a kind of double motor type energy recovery test stand for hydraulic net-lifting winch according to claim 1, it is characterised in that the
First pressure transmitter (P is connected on one branch road1), first pressure transmitter (P1) be used to measure the pressure of tie point.
6. a kind of double motor type energy recovery test stand for hydraulic net-lifting winch according to claim 1, it is characterised in that liquid
The exit of winch motor (7) is pressed to be provided with second pressure transmitter (P2), when forward direction is batched, second pressure transmitter (P2) use
In the outlet pressure of measurement hydraulic winch motor (7)；When reverse rope closing, the outlet pressure for measuring the second auxiliary pump (2),
That is the inlet pressure of hydraulic winch motor (7).
7. a kind of double motor type energy recovery test stand for hydraulic net-lifting winch according to claim 1, it is characterised in that the
The 3rd pressure transmitter (P is provided with the outlet pressure of two auxiliary pumps (2)3), when forward direction is batched, the 3rd pressure transmitter (P3)
Outlet pressure for measuring the second auxiliary pump (2), i.e., the inlet pressure of two loading motors；When reverse rope closing, for measuring
The outlet pressure of two loading motors, judges the 3rd pressure transmitter (P3) measured value whether produce pressure pulse, judgement system
The situation of change of the number of plies, so as to change the displacement value of two loading motors.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296383.0A CN105805066B (en) | 2016-05-06 | 2016-05-06 | Double motor type energy recovery test stand for hydraulic net-lifting winch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610296383.0A CN105805066B (en) | 2016-05-06 | 2016-05-06 | Double motor type energy recovery test stand for hydraulic net-lifting winch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105805066A CN105805066A (en) | 2016-07-27 |
| CN105805066B true CN105805066B (en) | 2017-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610296383.0A Expired - Fee Related CN105805066B (en) | 2016-05-06 | 2016-05-06 | Double motor type energy recovery test stand for hydraulic net-lifting winch |
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| CN (1) | CN105805066B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593976B (en) * | 2016-12-26 | 2018-08-31 | 大连华锐重工集团股份有限公司 | Drilling machine hydraulic wireline winch testing stand |
| CN107677488B (en) * | 2017-10-20 | 2024-01-23 | 山东省农业机械科学研究院 | System for loading tested vehicle by adopting fixed loading device and traction power testing method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2072546U (en) * | 1990-07-10 | 1991-03-06 | 李建启 | Hydraulic shovel slewing system with reclaiming brake energy |
| DE69920452T2 (en) * | 1998-06-27 | 2005-11-10 | Bruun Ecomate Aktiebolag | MOBILE WORK MACHINE |
| US7269944B2 (en) * | 2005-09-30 | 2007-09-18 | Caterpillar Inc. | Hydraulic system for recovering potential energy |
| CN101876595B (en) * | 2009-04-29 | 2012-09-05 | 中国水产科学研究院渔业机械仪器研究所 | Energy recovery test stand for hydraulic net-lifting winch |
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2016
- 2016-05-06 CN CN201610296383.0A patent/CN105805066B/en not_active Expired - Fee Related
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