CN105805066A - Dual-motor type energy recovery bedstand for hydraulic net hauling winch - Google Patents
Dual-motor type energy recovery bedstand for hydraulic net hauling winch Download PDFInfo
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- CN105805066A CN105805066A CN201610296383.0A CN201610296383A CN105805066A CN 105805066 A CN105805066 A CN 105805066A CN 201610296383 A CN201610296383 A CN 201610296383A CN 105805066 A CN105805066 A CN 105805066A
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- loading
- winch
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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
Abstract
The invention relates to a dual-motor type energy recovery bedstand for a hydraulic net hauling winch. The dual-motor type energy recovery bedstand is specially used for quality testing and reliability testing of the hydraulic net hauling winch. The energy recovery bedstand comprises an auxiliary pump, a safety valve, a three-position electro-hydraulic directional valve, a proportional overflow valve, a large displacement loading motor, a small displacement loading motor, a torquemeter, a gearbox, a loading coiling block, a hanging bracket fixed pulley, a flowmeter and a pressure transmitter. The energy recovery bedstand is characterized in that the bedstand is in a dual-motor adjusting manner, forward reeling working conditions of the hydraulic net hauling winch serve as references, and first branches are connected to oil outlets of the dual loading motors; and oil ways of the dual loading motors are gathered to an oil inlet way of a hydraulic winch motor through the first branches. In actual testing working conditions, the energy recovery bedstand in the dual-motor adjusting manner can well solve the problem that single motor displacement changing scope cannot meet all system loading testing requirements, the displacement change scope of the loading motors is enlarged, the testing requirements for system constant torque output and constant rotational speed control are met, and energy recovery and reusing are achieved.
Description
Technical field
The present invention relates to a kind of assay device for hydraulic net-lifting winch and fishing boat hauling equipment being carried out quality inspection and reliability testing.
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, not only functionally having higher requirements at hydraulic net-lifting winch, and in its performance, have higher reliability requirement.Therefore the hydraulic net-lifting winch sample of new trial-production must flow through performance test and life-span durable test.Meanwhile, hydraulic net-lifting winch can full scale ship application after must completing relevant authentication test before dispatching from the factory.Hydraulic net-lifting winch testing stand is the special assay device that hydraulic net-lifting winch carries out life test and performance test, by simulating real work situation (main analog lineoutofservice signal pull and rope speed), the hydraulic net-lifting winch of various models is carried out quality inspection and reliability testing.
Based on the principle of energy regenerating recycling, studying double motor type energy recovery test stand for hydraulic net-lifting winch, the hydraulic oil that double; two loading motors export is recycled, reclaiming thus realizing system capacity.This energy regenerating test system has higher actual application value and economic worth, it is possible to be generalized in other large hydraulics lifting equipment.
Owing to single motor type energy recovery test stand for hydraulic net-lifting winch can not fully meet the niggerhead system loading requirements with the specified permanent rotating speed of specified permanent moment of torsion.And adopt the testing stand that double motor regulates form can solve this problem well, expand the displacement variation scope loading motor, make up single motor and regulate little the brought deficiency of displacement variation scope of system, meet system loading requirements.
Summary 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, owing to single motor type energy recovery test stand for hydraulic net-lifting winch can not fully meet the niggerhead system loading requirements with the specified permanent rotary speed working of specified permanent moment of torsion, to realize the recycling of energy simultaneously.
A kind of double motor type energy recovery test stand for hydraulic net-lifting winch provided by the invention, it is specifically designed to hydraulic net-lifting winch and carries out quality inspection and reliability testing, described hydraulic net-lifting winch 16 includes hydraulic winch motor 7, reduction box 10 and niggerhead 14, the pipeline that hydraulic winch motor 7 is connected by reduction box 12 connection winch reel 14, reduction box 12 and niggerhead 14 is provided with speed probe 13；This double motor type energy recovery test stand for hydraulic net-lifting winch includes first donkey pump the 1, second donkey pump the 2, first proportional pressure control valve the 6, the 3rd proportional pressure control valve the 18, first branch road, the second branch road and the 3rd branch road, after second branch road and the 3rd branch circuit parallel connection, it is connected to the first branch road, second branch road is provided with the first proportional pressure control valve 6, for regulating the pressure of this first branch road；3rd branch road is provided with the 3rd proportional pressure control valve 18；First donkey pump 1 connects the first branch road, is the first branch road repairing；Described testing stand also includes the second proportional pressure control valve 17, huge discharge loading motor 8, small displacement loading motor the 19, first torquemeter the 9, second torquemeter 20, gearbox 10, loads reel 11 and suspension bracket fixed pulley 15.Wherein:
Huge discharge loads the oil-out of motor 8 and small displacement loading motor 19 and connects the first branch road respectively, huge discharge is loaded motor 8 and small displacement and loads in the in-line that the oil circuit of motor 19 converges to hydraulic winch motor 7 by this first branch road, according to loading moyor characteristic curve, optimum organization every layer huge discharge loads motor 8 and the displacement value of small displacement loading motor 19, make huge discharge load motor 8 and small displacement loading motor 19 maintains and works between its high efficient area, and meet the system loading requirements of the output of system perseverance moment of torsion and constant speed control；Huge discharge loads motor 8 and connects gearbox 10 by the first torquemeter 9, and small displacement loads motor 19 and connects gearbox 10 by the second torquemeter 20；Gearbox 10 connects loading reel 11, loads reel 11 by frame fixed pulley group 15 connection winch reel 14；Second donkey pump 2 connects huge discharge respectively and loads motor 8 and the oil-in of small displacement loading motor 19, loads motor 8 for huge discharge and small displacement loads motor 19 fuel feeding.
In the present invention, the 3rd branch road is provided with the 3rd proportional pressure control valve 18, in reverse rope closing operating mode, with the first proportional pressure control valve 6 with the use of.
In the present invention, being additionally provided with effusion meter F1 in the second branch road, this effusion meter F1 is for measuring the spillway discharge of the first proportional pressure control valve 6, and its measured value is for the displacement control of the first donkey pump 1.
In the present invention, the first of three electro-hydraulic reversing valves 5 connects huge discharge and loads motor 8 and the oil-in of small displacement loading motor 19, and second mouthful connects the second donkey pump 2, and the 3rd mouthful connects hydraulic winch motor 7, and the 4th mouthful connects the second overflow valve 17；When forward batches, three electro-hydraulic reversing valves 5 are in right position, second donkey pump 2 adds to huge discharge through three electro-hydraulic reversing valves 5 and reaches 8 load horses and small displacement loads motor 19 low pressure oil supply, and hydraulic winch motor 7 output flow is through three electro-hydraulic reversing valves the 5, second overflow valve 17 oil sump tank simultaneously；When reverse rope closing, three electro-hydraulic reversing valves 5 are in left position, second donkey pump 2 gives hydraulic winch motor 7 low pressure oil supply through three electro-hydraulic reversing valves 5, and huge discharge adds the flow reaching 8 load horses and small displacement loading motor 19 output through three electro-hydraulic reversing valves the 5, second overflow valve 17 oil sump tank simultaneously.
In the present invention, the first branch road is connected to the first pressure transmitter P1, the first pressure transmitter P1For measuring the pressure of the first branch road.
In the present invention, the exit of hydraulic winch motor 7 is provided with the second pressure transmitter P2, when forward batches, the second pressure transmitter P2For measuring the outlet pressure of hydraulic winch motor 7；When reverse rope closing, for measuring the outlet pressure of the second donkey pump 2, the i.e. inlet pressure of hydraulic winch motor 7.
In the present invention, the outlet pressure place of the second donkey pump 2 is provided with the 3rd pressure transmitter P3, when forward batches, the 3rd pressure transmitter P3For measuring the outlet pressure of the second donkey pump 2, namely two load the inlet pressure of motor；When reverse rope closing, for measuring the outlet pressure of two loading motors.Judge the 3rd pressure transmitter P3Measured value whether produce pressure pulse, it determines the situation of change of the system number of plies, thus changing the displacement value of two loading motors.
The beneficial effects of the present invention is:
(1) hydraulic oil that double; two loading motors export being recycled, reclaiming thus realizing system capacity.
(2) owing to single motor type energy recovery test stand for hydraulic net-lifting winch can not fully meet the niggerhead system loading requirements with the specified permanent rotating speed of specified permanent moment of torsion.And adopt the testing stand that double motor regulates form can solve this problem well, expand the displacement variation scope loading motor, make up single motor and regulate little the brought deficiency of displacement variation scope of system, meet system loading requirements.(3) this energy regenerating test system has higher actual application value and economic worth, it is possible to be generalized in other large hydraulics lifting equipment.
Accompanying drawing explanation
Fig. 1 is the hydraulic scheme of double motor type energy recovery test stand for hydraulic net-lifting winch.
Number in the figure: 1-the first donkey pump, 2-the second donkey pump, 3-the first relief valve, 4-the second relief valve, tri-electro-hydraulic reversing valves of 5-, 6-the first proportional pressure control valve, 7-hydraulic winch motor, 8-huge discharge loads motor, 9-the first torquemeter, 10-gearbox, 11-loads reel, 12-reduction box, 13-speed probe, 14-niggerhead, 15-suspension bracket fixed pulley group, 16-hydraulic net-lifting winch, 17-the second proportional pressure control valve, 18-the 3rd proportional pressure control valve, 19-small displacement loads motor, 20-the second torquemeter, F1-effusion meter, P1、P2And P3-respectively first, second, and third pressure transmitter.
Detailed description of the invention
Now depending on accompanying drawing and in conjunction with following specific embodiment, the present invention will be further described.
Embodiment 1:
As shown in Figure 1, first donkey pump 1 is when carrying out hydraulic wireline winch test, and the hydraulic oil of the first donkey pump 1 supply is mainly used in supplementing hydraulic winch motor 7, huge discharge loads motor 8 and carries the vent flow of horse and small displacement loading motor 19 and the spillway discharge of the first proportional pressure control valve 6 or the 3rd proportional pressure control valve 18.Regulate the charge oil pressure of the first donkey pump 1, it is possible to regulate lineoutofservice signal pull.
Second donkey pump 2 is when forward batches, and the first donkey pump 2 loads motor 8 for huge discharge and small displacement loads motor 19 and supplements low pressure oil, promotes the operating of whole system forward；When reverse rope closing, the first donkey pump 2 supplements low pressure oil for hydraulic winch motor 7, promotes whole system antiport.Its outlet pressure is determined by system running resistance.By regulating the output flow of the first donkey pump 2, the rotating speed of scalable hydraulic winch motor 7, thus regulating the coiling speed of steel wire rope.
First relief valve 3 is used for protecting the first donkey pump 1.Second relief valve 4 is used for protecting the second donkey pump 2.
Three electro-hydraulic reversing valves 5 batch and the conversion of reverse two kinds of operating modes of rope closing for forward.When forward batches, three electro-hydraulic reversing valves 5 are in right position；When reverse rope closing, three electro-hydraulic reversing valves 5 are in left position.
First proportional pressure control valve 6, by keeping the overflow of low discharge, makes the outlet pressure of the first donkey pump 1 equal to its set pressure.Regulate the set pressure of the first proportional pressure control valve 6, the outlet pressure of scalable the first donkey pump 1, the namely pressure of the first branch road, and then regulate the pulling force of steel wire rope.
Huge discharge loading motor 8 carries horse and small displacement loads motor 19 and chooses the variable displacement motor of electrical-liquid control.When forward batches, two load motor as system load, and its input pressure is exactly the outlet pressure of the second donkey pump 2, and it goes out the input pressure that oil pressure (being set up by the first proportional pressure control valve 6) is exactly hydraulic winch motor 7.When reverse rope closing, two input pressures (being set up by the first proportional pressure control valve 6 or the 3rd proportional pressure control valve 18) loading motor are exactly the oil pressure that of hydraulic winch motor 7, and it goes out oil pressure and is determined by the set pressure of the second proportional pressure control valve 17.Two displacement value loading motor are determined according to system loading requirements optimization.
First torquemeter 9 is arranged on gearbox 10 and huge discharge loads between motor 8, loads rotating speed and the torque of motor 8 for detecting huge discharge.
Gearbox 10 is arranged between two loading motors and niggerhead 14, and its speed increasing ratio is determined less than the maximum permissible revolution loading motor according to the rotating speed of two high speed shafts of gearbox 10 in whole test process.When forward batches, hydraulic winch motor 7 slows down to increase through reduction box 12 and turns round, and drives niggerhead 14, again through steel wire rope, through suspension bracket fixed pulley group 15, drives and load reel 11, drop torsion through gearbox 10 speedup, drives two loading motors.And when reverse rope closing operating mode, gearbox 10 is used as reduction box.
Speed probe 13, for detecting the rotating speed of niggerhead 14, controls the output flow of the second donkey pump 2, thus controlling the speed of steel wire rope.
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 batches, its set pressure is determined according to minimum back pressure needed for hydraulic winch motor 7；When reverse rope closing, needed for its set pressure loads motor according to two, minimum back pressure is determined.
3rd proportional pressure control valve 18 does not generally work, its set pressure is higher than the set pressure of the first proportional pressure control valve 6, only working when reverse rope closing and the first donkey pump 1 work with minimum injection rate, its set pressure is determined by rope closing pulling force, lower than the set pressure of the first proportional pressure control valve 6.
Second torquemeter 20 is arranged on gearbox 10 and small displacement loads between motor 19, loads rotating speed and the torque of motor 19 for detecting small displacement.
Effusion meter F1The spillway discharge of measurement scale overflow valve 6, its measured value is for the displacement control of the first donkey pump 1.
First pressure transmitter P1For measuring the pressure of the first branch road.
Second pressure transmitter P2, when forward batches, for measuring the outlet pressure of hydraulic winch motor 7；When reverse rope closing, for measuring the outlet pressure of the second donkey pump 2, the i.e. inlet pressure of hydraulic winch motor 7.
3rd pressure transmitter P3, when forward batches, for measuring the outlet pressure of the second donkey pump 2, namely two load the inlet pressure of motor；When reverse rope closing, for measuring the outlet pressure of two loading motors.Judge the 3rd pressure transmitter P3Measured value whether produce pressure pulse, it determines the situation of change of the system number of plies, thus changing the displacement value of two loading motors.
With continued reference to Fig. 1, hydraulic work system flow process is as follows:
Forward batches the main process that work process is system test, in this process, and the pulling force of system log (SYSLOG) steel wire rope, speed, detect whether this hydraulic net-lifting winch performance reaches requirement；Reverse rope closing work process is system secondary process, for functional operating mode, it is achieved reversely collect steel wire rope, batches operating mode for forward next time and prepares.
When system be in forward batch operating mode time, three electro-hydraulic reversing valves 5 are in right position；The set pressure of the first proportional pressure control valve 6 is determined according to lineoutofservice signal pull；3rd proportional pressure control valve 18 does not work；Hydraulic winch motor 7 slows down to increase through reduction box 12 and turns round, drive niggerhead 14, again through steel wire rope, through suspension bracket fixed pulley group 15, drive and load reel 11, drop torsion through gearbox 10 speedup, drive two loading motors, two load the flow of motor output by the first branch road supply hydraulic winch motor 7, it is achieved forward energy reclaims.The hydraulic oil of the first donkey pump 1 supply is mainly used in supplementing hydraulic winch motor 7, huge discharge loads motor 8 and small displacement loads the vent flow of motor 19 and the spillway discharge of the first proportional pressure control valve 6, by effusion meter F1Detect the spillway discharge of the first proportional pressure control valve 6, thus regulating the discharge capacity of the first donkey pump 1.Second donkey pump 2 loads motor 8 for huge discharge and small displacement loads motor 19 and supplements low pressure oil, promotes the operating of whole system forward.The second donkey pump 2 discharge capacity is controlled, thus controlling the speed of steel wire rope by speed probe 13.Judge the 3rd pressure transmitter P3Measured value whether produce pressure pulse, it determines the situation of change of the system number of plies, according to optimized when being in the corresponding number of plies two load motor displacement values, change two loading motors displacement value.
When system is in reverse rope closing operating mode, three electro-hydraulic reversing valves 5 are in left position；The set pressure of the first proportional pressure control valve 6 is determined according to lineoutofservice signal pull；3rd proportional pressure control valve 18 only works when reverse rope closing and the first donkey pump 1 work with minimum injection rate, and its set pressure is lower than the set pressure of proportional pressure control valve 6.Two load motor increases torsion through gearbox 10 deceleration, drive and load reel 11, again through steel wire rope, through suspension bracket fixed pulley group 15, drive niggerhead 14, drop torsion through reduction box 12 speedup, drive hydraulic winch motor 7, the flow of hydraulic winch motor 7 output is by the first branch road supply two loading motor, it is achieved backward energy reclaims.The hydraulic oil of the first donkey pump 1 supply is mainly used in supplementing hydraulic winch motor 7, huge discharge loads motor 8 and small displacement loads 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.If the first proportional pressure control valve 6 works, by effusion meter F1Detect the spillway discharge of the first proportional pressure control valve 6, thus regulating the discharge capacity of the first donkey pump 1；If the 3rd proportional pressure control valve 18 works, the first donkey pump 1 works with minimum injection rate value.Second donkey pump 2 supplements low pressure oil for hydraulic winch motor 7, promotes whole system antiport.The second donkey pump 2 discharge capacity is controlled, thus controlling the speed of steel wire rope by speed probe 13.Judge the 3rd pressure transmitter P3Measured value whether produce pressure pulse, it determines the situation of change of the system number of plies, according to optimized when being in the corresponding number of plies two load motor displacement values, change two loading motors displacement value.
Claims (7)
1. a double motor type energy recovery test stand for hydraulic net-lifting winch, it is specifically designed to hydraulic net-lifting winch and carries out quality inspection and reliability testing, described hydraulic net-lifting winch (16) includes hydraulic winch motor (7), reduction box (10) and niggerhead (14), the pipeline that hydraulic winch motor (7) is connected by reduction box (12) connection winch reel (14), reduction box (12) and niggerhead (14) is provided with speed probe (13)；This double motor type energy recovery test stand for hydraulic net-lifting winch includes the first donkey pump (1), the second donkey pump (2), the first proportional pressure control valve (6), the 3rd proportional pressure control valve (18), the first branch road, the second branch road and the 3rd branch road, after second branch road and the 3rd branch circuit parallel connection, it is connected to the first branch road, second branch road is provided with the first proportional pressure control valve (6), for regulating the pressure of this first branch road；3rd branch road is provided with the 3rd proportional pressure control valve (18)；First donkey pump (1) connects the first branch road, is the first branch road repairing；It is characterized in that described testing stand also includes the second proportional pressure control valve (17), huge discharge loading motor (8), small displacement loading motor (19), the first torquemeter (9), the second torquemeter (20), gearbox (10), loads reel (11) and suspension bracket fixed pulley (15)；Wherein:
Huge discharge loads the oil-out of motor (8) and small displacement loading motor (19) and connects the first branch road respectively, huge discharge is loaded motor (8) and small displacement and loads in the in-line that the oil circuit of motor (19) converges to hydraulic winch motor (7) by this first branch road, according to loading moyor characteristic curve, optimum organization every layer huge discharge loads motor (8) and the displacement value of small displacement loading motor (19), make huge discharge load motor (8) and small displacement loading motor (19) maintains and works between its high efficient area, and meet the system loading requirements of the output of system perseverance moment of torsion and constant speed control；Huge discharge loads motor (8) and connects gearbox (10) by the first torquemeter 9, and small displacement loads motor (19) and connects gearbox (10) by the second torquemeter (20)；Gearbox (10) connects loading reel (11), loads reel (11) by frame fixed pulley group (15) connection winch reel (14)；Second donkey pump (2) connects huge discharge respectively and loads motor (8) and the oil-in of small displacement loading motor (19), loads motor (8) for huge discharge and small displacement loads 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 characterized in that the 3rd branch road is provided with the 3rd proportional pressure control valve (18), in reverse rope closing operating mode, with the first proportional pressure control valve (6) with the use of.
3. a kind of double motor type energy recovery test stand for hydraulic net-lifting winch according to claim 1, it is characterized in that the second branch road is additionally provided with effusion meter (F1), this effusion meter (F1) is used for measuring the spillway discharge of the first proportional pressure control valve (6), and its measured value is for the displacement control of the first donkey pump (1).
4. a kind of double motor type energy recovery test stand for hydraulic net-lifting winch according to claim 1, it is characterized in that the first of three electro-hydraulic reversing valves (5) connects huge discharge and loads motor (8) and the oil-in of small displacement loading motor (19), second mouthful connects the second donkey pump (2), 3rd mouthful connects hydraulic winch motor (7), and the 4th mouthful connects the second overflow valve (17)；When forward batches, three electro-hydraulic reversing valves (5) are in right position, second donkey pump (2) adds to huge discharge through three electro-hydraulic reversing valves (5) and reaches (8) load horse and small displacement loads motor (19) low pressure oil supply, and hydraulic winch motor 7 output flow is through three electro-hydraulic reversing valves (5), the second overflow valve (17) oil sump tank simultaneously；When reverse rope closing, three electro-hydraulic reversing valves (5) are in left position, second donkey pump (2) is through three electro-hydraulic reversing valves (5) to hydraulic winch motor (7) low pressure oil supply, and huge discharge adds and reaches (8) load horse and small displacement loads flow that motor (19) exports through three electro-hydraulic reversing valves (5), the second overflow valve (17) oil sump tank simultaneously.
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 be connected to the first pressure transmitter (P on the first branch road1), the first pressure transmitter (P1) for measuring the pressure of the first branch road.
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 the exit of hydraulic winch motor (7) is provided with the second pressure transmitter (P2), when forward batches, the second pressure transmitter (P2) it is used for measuring the outlet pressure of hydraulic winch motor (7)；When reverse rope closing, it is used for measuring the outlet pressure of the second donkey pump (2), i.e. 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 outlet pressure place of the second donkey pump (2) is provided with the 3rd pressure transmitter (P3), when forward batches, the 3rd pressure transmitter (P3) it is used for measuring the outlet pressure of the second donkey pump (2), namely two load the inlet pressure of motor；When reverse rope closing, for measuring the outlet pressure of two loading motors, it is judged that the 3rd pressure transmitter (P3) measured value whether produce pressure pulse, it determines the situation of change of the system number of plies, thus changing 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 |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610296383.0A CN105805066B (en) | 2016-05-06 | 2016-05-06 | Double motor type energy recovery test stand for hydraulic net-lifting winch |
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| CN105805066A true CN105805066A (en) | 2016-07-27 |
| CN105805066B CN105805066B (en) | 2017-07-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593976A (en) * | 2016-12-26 | 2017-04-26 | 大连华锐重工集团股份有限公司 | Testbed of hydraulic winches of drilling machine |
| CN107677488A (en) * | 2017-10-20 | 2018-02-09 | 山东省农业机械科学研究院 | The system and traction power method of testing loaded using fixed loading device to tested vehicle |
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| 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 |
| US6584769B1 (en) * | 1998-06-27 | 2003-07-01 | Lars Bruun | Mobile working machine |
| CN101278130A (en) * | 2005-09-30 | 2008-10-01 | 卡特彼勒公司 | Hydraulic system for recovering potential energy |
| CN101876595A (en) * | 2009-04-29 | 2010-11-03 | 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 |
-
2016
- 2016-05-06 CN CN201610296383.0A patent/CN105805066B/en not_active Expired - Fee Related
Patent Citations (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 |
| US6584769B1 (en) * | 1998-06-27 | 2003-07-01 | Lars Bruun | Mobile working machine |
| CN101278130A (en) * | 2005-09-30 | 2008-10-01 | 卡特彼勒公司 | Hydraulic system for recovering potential energy |
| CN101876595A (en) * | 2009-04-29 | 2010-11-03 | 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593976A (en) * | 2016-12-26 | 2017-04-26 | 大连华锐重工集团股份有限公司 | Testbed of hydraulic winches of drilling machine |
| CN107677488A (en) * | 2017-10-20 | 2018-02-09 | 山东省农业机械科学研究院 | The system and traction power method of testing loaded using fixed loading device to tested vehicle |
| 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 |
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| Publication number | Publication date |
|---|---|
| CN105805066B (en) | 2017-07-25 |
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