CN104074734B - The oil film experimental apparatus for testing of plunger pair in a kind of plunger displacement pump - Google Patents

The oil film experimental apparatus for testing of plunger pair in a kind of plunger displacement pump Download PDF

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Publication number
CN104074734B
CN104074734B CN201410313263.8A CN201410313263A CN104074734B CN 104074734 B CN104074734 B CN 104074734B CN 201410313263 A CN201410313263 A CN 201410313263A CN 104074734 B CN104074734 B CN 104074734B
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China
Prior art keywords
plunger
oil film
plate
bracing frame
displacement pump
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CN201410313263.8A
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Chinese (zh)
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CN104074734A (en
Inventor
姜继海
刘明
王克龙
韩斌
汪泽波
钟默
闫伟鹏
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哈尔滨工业大学
山东常林机械集团股份有限公司
山东中川液压有限公司
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Priority to CN201410313263.8A priority Critical patent/CN104074734B/en
Publication of CN104074734A publication Critical patent/CN104074734A/en
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Abstract

The oil film experimental apparatus for testing of plunger pair in a kind of plunger displacement pump, it relates to Hydraulic Elements and manufactures field.The present invention is to solve the problem that in existing plunger displacement pump, plunger pair oil film parameter difficulty of test is big.The oil film experimental apparatus for testing of plunger pair in a kind of plunger displacement pump of the present invention, including swash plate, piston shoes, plunger and oil inlet pipe, it also includes shaft coupling, Wear resistance disk, plunger bushing, expansion sleeve, tensioner block set, bracing frame, connector, rotary shaft and arc chute;Bracing frame includes the connecting plate that is arranged in a mutually vertical manner and fixing base plate, and tensioner block set is bolted on the connecting plate of bracing frame.The present invention is the oil film test experiments of plunger pair in plunger displacement pump.

Description

The oil film experimental apparatus for testing of plunger pair in a kind of plunger displacement pump
Technical field
The present invention relates to the oil film experimental apparatus for testing of plunger pair in a kind of plunger displacement pump, belong to Hydraulic Elements and manufacture field.
Background technology
Hydraulic system is widely used in industrial circle, and it is equipment in fields such as engineering machinery, equipment manufacturing, Aero-Space The raising of automatization, intellectuality and performance be made that huge contribution.And hydraulic pump is as the energy of this hydraulic system Source plays an important role.Pressure in Axial Piston Pump is high, and volumetric efficiency is high, easily realizes Flow-rate adjustment, and owing to it is close Envelope effect is preferable, it is adaptable in the hydraulic system of high-power, be widely used in engineering practice.
Traditional plunger displacement pump design all uses empirical method, approximate formula etc., and based on static parameter.And the later stage is by repeatedly Design result is improved in experiment, amendment.Such design process cost height, research and development of products cycle length, inefficiency.Along with Developing rapidly of computer technology, the means such as numerical computations, emulation are that the optimization design of axial plunger pump provides technical support. The lubrication circumstances of axial plunger pump key friction pair oil film can be obtained by simulation means, but due to the spy of plunger pump structure Different property, installs sensor, experiments of measuring data difficulty very greatly on its crucial friction pair, it is therefore proposed that in a kind of plunger displacement pump The oil film experimental apparatus for testing of plunger pair.The parameter of plunger sub-oil film is obtained and with this proof theory result of study by experiment Correctness, provides for the optimization design that plungers pump plunger is secondary and supports.
The Chinese patent of Application No. 2011103102408 discloses the test device of a kind of piston shoe in axial plunger pump performance, Test piston shoes performance by one group of plunger bushing, but exist when cannot simulate that in plunger displacement pump, plunger runs to pressure transition region The problem of state.
Summary of the invention
The invention aims to solve in existing plunger displacement pump that plunger pair oil film parameter difficulty of test is big, exist and cannot simulate post The problem of state when plunger runs to pressure transition region in plug pump.And then provide the oil film of plunger pair in a kind of plunger displacement pump to survey Examination experimental provision.
The technical scheme is that the oil film experimental apparatus for testing of plunger pair in a kind of plunger displacement pump, including swash plate, piston shoes, Plunger and oil inlet pipe, it also include shaft coupling, Wear resistance disk, plunger bushing, expansion sleeve, tensioner block set, bracing frame, connector, Rotary shaft and arc chute;Bracing frame includes the connecting plate that is arranged in a mutually vertical manner and fixing base plate, and tensioner block set is solid by bolt Being scheduled on the connecting plate of bracing frame, tensioner block set is fixed with multiple expansion sleeve, plunger bushing is fastened on bracing frame by expansion sleeve On connecting plate, one end of plunger is nested in plunger bushing, and the other end is hinged with piston shoes, and the bottom of piston shoes is pressed in wear-resisting On the one side of dish, the another side of Wear resistance disk is connected with the bottom of swash plate, and even coupling one end connects prime mover, another End connects rotary shaft, and rotary shaft has an arc chute, connects swash plate and is provided with a pair connector, the two ends diameter of connector More than the width of arc chute, the connecting rod of connector is placed in arc chute sliding, and oil inlet pipe passes through petroleum pipeline and plunger Bottom connection.
The present invention compared with prior art has the effect that
The oil film experimental apparatus for testing of plunger pair in plunger displacement pump of the present invention, uses the form of inverse motion, eliminates post Fill in around the gyration of pump shaft and do not change the state of plunger and oil film thereof, there is compact conformation and the feature being easily achieved.Phase For directly installing sensor on plunger displacement pump, this experimental provision is simpler, is more beneficial for plunger sub-oil film pressure, thickness Acquisition isoparametric with temperature.By plunger sub-oil film is carried out special experiment, it may be verified that plunger sub-oil film simulation calculation Correctness, thus realize the optimization to plunger pair and design, improve the life and reliability of plunger pair.It addition, this experiment dress Put and can also realize becoming the plunger sub-oil film dynamic test under the various working such as discharge capacity, varying load.
Accompanying drawing explanation
Fig. 1 is the sectional view of the oil film experimental apparatus for testing of plunger pair in plunger displacement pump of the present invention.
In apparatus of the present invention, each component names and label are as follows:
Shaft coupling 1, swash plate 2, Wear resistance disk 3, piston shoes 4, plunger 5, plunger bushing 6, expansion sleeve 7, tensioner block set 8, enter Oil pipe 9, bracing frame 10, connector 11, rotary shaft 12, arc chute 13.
Detailed description of the invention
Detailed description of the invention one: combine Fig. 1 and illustrate that present embodiment, present embodiment include plunger pair in a kind of plunger displacement pump Oil film experimental apparatus for testing, including swash plate 2, piston shoes 4, plunger 5 and oil inlet pipe 9, it also includes shaft coupling 1, Wear resistance disk 3, plunger bushing 6, expansion sleeve 7, tensioner block set 8, bracing frame 10, connector 11, rotary shaft 12 and arc chute 13; Bracing frame 10 includes the connecting plate that is arranged in a mutually vertical manner and fixing base plate, and tensioner block set 8 is bolted on bracing frame 10 Connecting plate on, tensioner block set 8 is fixed with multiple expansion sleeve 7, plunger bushing 6 is fastened on bracing frame 10 by expansion sleeve 7 On connecting plate, one end of plunger 5 is nested in plunger bushing 6, and the other end is hinged with piston shoes 4, and the bottom of piston shoes 4 is pressed Tight on the one side of Wear resistance disk 3, the another side of Wear resistance disk 3 is connected with the bottom of swash plate 2, even coupling 1 one end Connecting prime mover, the other end connects rotary shaft 12, and rotary shaft 12 has an arc chute 13, connects swash plate 2 and is provided with one To connector 11, the two ends diameter of connector 11 is more than the width of arc chute 13, and the connecting rod of connector 11 is placed in arc Sliding in shape chute 13, oil inlet pipe 9 is connected with the bottom of plunger 5 by petroleum pipeline.
Rotating continuously of prime mover is delivered to rotary shaft 12 by shaft coupling 1, and swash plate 2 passes through connector 11 in rotary shaft 12 Drive lower rotation, the connecting rod of connector 11 limited motion in arc chute 13 so that the inclination angle of swash plate 2 can connect Continuous adjustment, to realize the experiment of different swashplate angle lower plunger sub-oil film characteristic.Piston shoes 4 are pressed on Wear resistance disk 3, make The reciprocating motion of plunger 5 is realized while swash plate 2 continuous rotary.Plunger bushing 6 is clamped on connecting bottom board by expansion sleeve 7, Thus ensure that plunger 5 can carry out stable reciprocating motion.Being passed through high-pressure oil in oil inlet pipe 9, its pressure acts on post On the side of plug 5.By diverse location on plunger bushing 6, pressure, temperature and eddy current displacement sensor are installed, can distinguish Measure the pressure of plunger sub-oil film, temperature and thickness distribution, understand the lubricating status of plunger sub-oil film.
This experimental provision also can carry out the experiment of the oil film test of plunger pair in two groups of plunger displacement pumps simultaneously, is improving conventional efficient Meanwhile, the required rotative power provided of prime mover also can be made relatively steady, reduce the fluid flowing in oil inlet pipe, it is ensured that Stablizing of oil cavity pressure.
Detailed description of the invention two: combine Fig. 1 and present embodiment is described, the plunger bushing 6 of present embodiment is provided with pressure and passes Sensor, temperature sensor and eddy current displacement sensor.Other composition is identical with detailed description of the invention one with annexation.
Detailed description of the invention three: combine Fig. 1 and present embodiment is described, the plunger bushing 6 of present embodiment is also equipped with one group For measuring the foil gauge of bearing capacity and frictional force.Plunger bushing 6 is installed foil gauge, the stress on plunger bushing 6 can be obtained Situation, then by being calculated the parameter values such as bearing capacity and the frictional force of plunger sub-oil film.Other composition and annexation and tool Body embodiment one is identical.
Detailed description of the invention four: combine Fig. 1 and present embodiment is described, the internal pressure being passed through of the oil inlet pipe 9 of present embodiment Oil is the pressure oil that can dynamically change, and so can obtain the plunger sub-oil film dynamic parameter when load pressure changes.Other group Become identical with detailed description of the invention one with annexation.
Detailed description of the invention five: combine Fig. 1 and present embodiment is described, at the oil inlet pipe 9 of present embodiment connect have one can The dynamically pressure load of change.At oil pipe 9, connect the pressure load of dynamically change, plunger 5 can be made to be made by live load With, thus simulate state when plunger in plunger displacement pump runs to pressure transition region.Other composition and annexation are real with concrete Execute mode one identical.
Foregoing is only presently preferred embodiments of the present invention, is not intended to limit embodiment of the present invention, the common skill in this area Art personnel, according to the central scope of the present invention and spirit, can carry out corresponding flexible or amendment very easily, therefore the present invention Protection domain should be as the criterion with the protection domain required by claims.

Claims (1)

1. an oil film experimental apparatus for testing for plunger pair in plunger displacement pump, including swash plate (2), piston shoes (4), plunger (5) and oil-feed Pipe (9), it is characterised in that it also include shaft coupling (1), Wear resistance disk (3), plunger bushing (6), expansion sleeve (7), tensioner block set (8), Bracing frame (10), connector (11), rotary shaft (12) and arc chute (13);Bracing frame (10) includes the connection being arranged in a mutually vertical manner Plate and fixing base plate, tensioner block set (8) is bolted on the connecting plate of bracing frame (10), and tensioner block set is fixed with on (8) Multiple expansion sleeves (7), plunger bushing (6) is fastened on the connecting plate of bracing frame (10) by expansion sleeve (7), and one end of plunger (5) is nested in In plunger bushing (6), the other end is hinged with piston shoes (4), and the bottom of piston shoes (4) is pressed on the one side of Wear resistance disk (3), wear-resisting The another side of dish (3) is connected with the bottom of swash plate (2), and even coupling (1) one end connects prime mover, and the other end connects rotary shaft (12), rotary shaft (12) has an arc chute (13), connects swash plate (2) and is provided with a pair connector (11), the two of connector (11) End diameter is more than the width of arc chute (13), and the connecting rod of connector (11) is placed in arc chute (13) sliding, oil inlet pipe (9) being connected with the bottom of plunger (5) by petroleum pipeline, the internal pressure oil being passed through of oil inlet pipe (9) is the pressure oil that can dynamically change.
CN201410313263.8A 2014-07-02 2014-07-02 The oil film experimental apparatus for testing of plunger pair in a kind of plunger displacement pump CN104074734B (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110836178A (en) * 2019-12-13 2020-02-25 北京航空航天大学 Comprehensive test device for plunger pump flow distribution pair

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* Cited by examiner, † Cited by third party
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CN104865060B (en) * 2015-05-21 2017-04-12 浙江大学 Multifunctional testing stand for testing oil film field parameters of slipper pair of plunger pump
CN106595462B (en) * 2016-12-29 2018-11-16 北京理工大学 A kind of pair in axial piston pump test oil film thickness measurement system
CN107228106B (en) * 2017-06-06 2018-10-26 中国北方车辆研究所 A kind of axial plunger pump and motor retainer assembly test device
CN107829926A (en) * 2017-09-30 2018-03-23 长安大学 A kind of detection means and method of quantitative plunger pump Slipper coupling oil film thickness
CN110425124B (en) * 2019-07-19 2020-08-11 北京航空航天大学 Plunger pump motion abrasion and leakage measurement test bed capable of applying centrifugal force
CN111458124B (en) * 2020-04-13 2021-03-26 上海交通大学 Plunger pump sliding shoe pair oil film lubrication characteristic test bed capable of controlling oil film clearance

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CN201269185Y (en) * 2008-08-11 2009-07-08 东风汽车有限公司设备制造厂 Testing bench frame for control oil pump of automatic gear box
CN102312830A (en) * 2011-10-13 2012-01-11 哈尔滨工业大学 Performance testing device for piston shoe in axial plunger pump

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DE2928506A1 (en) * 1979-07-14 1981-01-29 Skf Kugellagerfabriken Gmbh Testing lubricant film formation under operating conditions - using tapered roller measurement bearing with axial and radial displacement
CN1588057A (en) * 2004-08-06 2005-03-02 浙江大学 Axial plunger pump piston shoe auxiliary lubrication characteristic test device
CN200952456Y (en) * 2006-08-29 2007-09-26 陕西航天动力高科技股份有限公司 Axial variable plunger pump
CN201269185Y (en) * 2008-08-11 2009-07-08 东风汽车有限公司设备制造厂 Testing bench frame for control oil pump of automatic gear box
CN101413812A (en) * 2008-11-07 2009-04-22 浙江大学 Device for testing plunger sub-oil film characteristic of plunger pump / motor
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CN110836178A (en) * 2019-12-13 2020-02-25 北京航空航天大学 Comprehensive test device for plunger pump flow distribution pair

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