CN106015134A - Performance test hydraulic test stand for hydrostatic guide way of heavy-duty numerical control machine table - Google Patents

Performance test hydraulic test stand for hydrostatic guide way of heavy-duty numerical control machine table Download PDF

Info

Publication number
CN106015134A
CN106015134A CN201610555822.5A CN201610555822A CN106015134A CN 106015134 A CN106015134 A CN 106015134A CN 201610555822 A CN201610555822 A CN 201610555822A CN 106015134 A CN106015134 A CN 106015134A
Authority
CN
China
Prior art keywords
outlet
valve
import
hydrostatic
filter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610555822.5A
Other languages
Chinese (zh)
Other versions
CN106015134B (en
Inventor
赵建华
高殿荣
毋少峰
王强
杨拓
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Yanshan University
Original Assignee
Yanshan University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yanshan University filed Critical Yanshan University
Priority to CN201610555822.5A priority Critical patent/CN106015134B/en
Publication of CN106015134A publication Critical patent/CN106015134A/en
Application granted granted Critical
Publication of CN106015134B publication Critical patent/CN106015134B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B11/00Servomotor systems without provision for follow-up action; Circuits therefor
    • F15B11/08Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F15FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
    • F15BSYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
    • F15B1/00Installations or systems with accumulators; Supply reservoir or sump assemblies
    • F15B1/02Installations or systems with accumulators
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01DMEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00Measuring or testing not otherwise provided for
    • G01D21/02Measuring two or more variables by means not covered by a single other subclass
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Fluid Mechanics (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

A performance test hydraulic test stand for a hydrostatic guide way of a heavy-duty numerical control machine table is mainly characterized in that a stop valve B is connected with a vane pump; the vane pump is connected with a throttle valve C, a throttle valve B and a stop valve A through a high-pressure filter; the throttle valve B is connected with a throttle valve A and a loading cylinder; a cylinder body of the loading cylinder is fixed; a plunger rod abuts against a hydrostatic guide way body; the throttle valve A is connected with a stop valve C; the throttle valve C is connected with a plurality of needle valves; each needle valve is connected with a flowmeter; an outlet of each flowmeter is connected with an inlet of a corresponding hydrostatic bearing cavity; an outlet of each hydrostatic bearing cavity is connected and combined with a hydraulic hose, and the outlet of each hydrostatic bearing cavity and the corresponding hydraulic hose are jointly connected with an inlet of the stop valve C; and a pressure measuring hole of each hydrostatic bearing cavity is connected with a pressure gage. The test stand is simple in structure, can achieve the functions of axial loading and measurement of the hydrostatic guide way, adjustment and detection of the bearing capacity of a bearing pad and the like, and provides a technical support for performance test and analysis of the hydrostatic guide way.

Description

Heavy digital control machine tool hydrostatic slideway performance test hydraulic test bench
Technical field
The present invention relates to a kind of liquid static-pressure support equipment performance test fluid pressure device.
Background technology
Hydrostatic slideway owing to coefficient of friction is little, velocity interval is wide, length in service life, Heavy duty such as is not creeped at the advantage, has obtained bigger development in weight equipment field.But due to The supporting oil pocket of hydrostatic slideway is more, structure is complicated, each oil pocket bearing capacity phase mutual coupling Close, calculate and com-parison and analysis difficulty, it is therefore desirable to utilize guide rail performance simply and easily to survey Bearing capacity, static state and the dynamic property of hydrostatic slideway are tested by test system, With the bearing capacity calculation mode of hydrostatic slideway accurate under the different fuel system of checking Property.
And this testing stand can the bearing capacity of test liquid hydrostatic slideway, oil film rigidity, quiet State and dynamic property, improve the design accuracy of guide track system.
Summary of the invention
It is an object of the invention to provide a kind of can test liquid hydrostatic slideway simply and easily The heavy digital control machine tool fluid pressure of bearing capacity, oil film rigidity, static state and dynamic property is led Rail performance test hydraulic test bench (hereinafter referred to as testing stand).
This testing stand specifically includes that air filter, oil absorption filter, overflow valve, determines Amount vane pump, motor, accumulator, throttle valve A, B, C, piezometer, needle-valve, stream Gauge, liquidometer, liquid thermometer, return filter, heater, cooler, hydraulic pressure glue Pipe, plunger case, stop valve A, B, C, upside-down mounting leaf filter etc. and hydrostatic slideway. Concrete structure is as follows:
Air filter is arranged on fuel tank, is preferably additionally provided with liquidometer, temperature on this fuel tank Degree meter and heater;The import of stop valve B is connected with fuel tank, outlet and filter inlet It is connected;The outlet of oil absorption filter is connected with vane pump import;Blade delivery side of pump is respectively It is connected with high pressure filter, piezometer, the import of overflow valve;The outlet of overflow valve and oil Case is connected;The outlet of high pressure filter respectively with choke valve C, choke valve B, stop valve A Import be connected;The outlet of stop valve A is connected with the import of accumulator;Choke valve B's Outlet is connected with import, the import of loading cylinder of throttle valve A respectively;Load the cylinder body of cylinder Fixing, plunger rod withstands on hydrostatic slideway body, the outlet of throttle valve A and shutoff valve C Import be connected;The outlet of shutoff valve C is connected with the import of forced air cooler;Forced air cooler Outlet be connected with the import of return filter;The outlet of return filter is connected with fuel tank; The outlet of choke valve C import with some needle-valves respectively is connected;The outlet of each needle-valve each with The import of one effusion meter is connected, and the outlet of effusion meter connects corresponding hydrostatic support chamber respectively Import;The outlet in each hydrostatic support chamber is connected with hydralic hose and merges, common and cut-off The import of valve C is connected;The pressure tap in each hydrostatic support chamber is connected with Pressure gauge respectively.
The experiment hydrostatic slideway of this testing stand at most can use the quiet of 12 independent controls Hydraulic support chamber supports, and can limit the guide rail five degree of freedom in addition to linear motion.This test The guide rail of platform uses plunger to load cylinder and loads, and the inlet parallel of hydraulic cylinder is at two joints Between stream valve, liquid bridge principle is used to be adjusted.The bearing capacity in each hydrostatic support chamber uses The piezometer of oil pocket front end measures, and uses needle-valve to be adjusted, to ensure each oil pocket Oil film thickness adjustable.
The present invention compared with prior art has the advantage that
1, this test platform structure is simple, it is possible to realize heavy digital control machine tool hydrostatic slideway Axially loaded with measure, the function such as the regulation of support pads bearing capacity and detection, be The Properties Testing of hydrostatic slideway provides technical guarantee.
2, this testing stand can test the bearing capacity of heavy digital control machine tool hydrostatic slideway And static and dynamic performance, improve design accuracy and the reliability of guide track system, and then improve The service life of guide track system.
3, this testing stand can test the bearing capacity of guide rail, rigidity and static state, dynamically, Vibration performance index.
Accompanying drawing explanation
Fig. 1 is the present invention each parts annexation simplified schematic diagram;
Fig. 2 is solid simplified schematic diagram of the present invention;
Fig. 3 is that master of the present invention regards simplified schematic diagram;
Fig. 4 is that fluid present invention hydrostatic slideway part isometric amplifies simplified schematic diagram;
Fig. 5 is fuel tank solid simplified schematic diagram of the present invention.
In figure: 1, air filter, 2, oil absorption filter, 3, overflow valve, 4, leaf Sheet pump, 5, motor, 6, accumulator, 7.1, throttle valve A, 7.2, choke valve B, 8.1-8.13, Piezometer, 9.1-9.12, needle-valve, 10.1-10.12 effusion meter, 11, liquidometer, 12, Thermometer, 13, return filter, 14, heater, 15, forced air cooler, 16, liquid Moulding pipe, 17, load cylinder, 18.1, stop valve A, 18.2, stop valve B, 18.3, Shutoff valve C, 19, choke valve C, 20, high pressure filter, 21, hydrostatic slideway, 22, Fuel tank, 23, oil-way integrated block A, 24, platform, 25, integrated package B, 26, oil-feed Mouthful, 27, oil return opening, 28, pressure tap, 29, oil-way integrated block erecting bed, 30, return Oil piping platform, 31, air filter erecting bed, 32, fuel sucking pipe erecting bed, 33, Motor erecting bed, 34, side have an accumulator erecting bed, 35, hanger, 36, heater Mounting flange.
The present invention is elaborated by detailed description of the invention below in conjunction with the accompanying drawings:
At the heavy digital control machine tool hydrostatic slideway performance test hydraulic test bench shown in Fig. 1 In each parts annexation simplified schematic diagram, it is provided with liquidometer 11, thermometer 12 and heater 14 Fuel tank 22 be provided with air filter 1;The import of stop valve B18.2 is connected with fuel tank 22, Outlet is connected with oil absorption filter 2 import;The outlet of oil absorption filter 2 and vane pump 4 import Be connected, the outlet of vane pump 4 respectively with filter 20, piezometer 8.1, the entering of overflow valve 3 Mouth is connected;The outlet of overflow valve 3 is connected with fuel tank 22;The outlet of high pressure filter 20 is respectively It is connected with choke valve C19, choke valve B7.2, the import of stop valve A18.1;Stop valve A18.1 Outlet be connected with the import of accumulator 6;The outlet of choke valve B7.2 respectively with throttle valve A 7.1 Import, load cylinder 17 import be connected;The cylinder body loading cylinder 17 is fixed, and plunger rod withstands on On hydrostatic slideway 21 body;The outlet of throttle valve A 7.1 is connected with the import of shutoff valve C 18.3; The outlet of shutoff valve C 18.3 is connected with the import of forced air cooler 15;The outlet of forced air cooler 15 Import with return filter 13 is connected;The outlet of return filter 13 is connected with fuel tank 22; The outlet of choke valve C19 import with needle-valve 9.1-9.6 respectively is connected;Needle-valve 9.1-9.6 goes out Mouth import with effusion meter 10.1-10.6 respectively is connected;The outlet of effusion meter 10.1-10.6 is respectively Connect the import in corresponding hydrostatic support chamber;The outlet in each hydrostatic support chamber is connected with hydralic hose 16 And merge, the import with shutoff valve C 18.3 is connected jointly;The pressure tap in each hydrostatic support chamber divides It is not connected with Pressure gauge 8.2-8.7.
In Fig. 1, the model of each assembly is respectively: air filter (1) is EF-32;Overflow Stream valve (3) is YF-B10B;Vane pump (4) is YB1-25;Motor (5) is Y132M1-6; Accumulator (6) is NXQ2-L6.3/*-H;Choke valve (7.1-7.2,19) is MG10G1.2;Piezometer (8.1-8.7) is YN100T;Needle-valve (9.1-9.6) is covna/HKZ-09;Effusion meter (10.1-10.6) is SBL;Liquidometer (11) is XYW-127;Liquid thermometer (12) is YWZ-127T;Return filter (13) is RFB-25%x*Y;Heater (14) is SRY2-220/1;Cooler (15) is FL-2; Hydralic hose (16) is HG4-406-75;Loading cylinder (17) is plunger case, and model is YZG-100%xS;Stop valve (18.1-18.3) is XJF-20/10.The volume of this testing stand Determining operating pressure is 3MPa, and theoretical work flow is 25L/min;Lubricant medium selects For VG-15 antiwear hydraulic oil, system oil temperature control is in the range of 30~50 DEG C.
At the heavy digital control machine tool hydrostatic slideway performance test liquid shown in Fig. 2 and Fig. 3 Pressure testing stand is three-dimensional and main in simplified schematic diagram, loading cylinder 17 is arranged below and with pressure The meter hydrostatic slideway 21 of 8.1-8.12, needle-valve 9.1-9.12, integrated package B25, fuel tank 22 Etc. being located at by the platform 24 of Plate Welding;Sidewall is provided with liquidometer 11, heating The fuel tank 22 of device 14 and accumulator 6 is arranged above with motor 5, vane pump 4, high-pressure filteration Device 20, return filter 13, the parts such as air filter 1, oil-way integrated block A23; Hydralic hose 16 is utilized between hydrostatic slideway 21, needle-valve 9.1-9.12, oil-way integrated block 23 Connect.Oil-way integrated block A23 and oil-way integrated block B25 is the metal derby of a square, It is provided with inside the duct of different directions and the degree of depth as oil circuit.
Simplified schematic diagram is amplified at the fluid present invention hydrostatic slideway part isometric shown in Fig. 4 In, hydrostatic slideway 21 side sets the oil-in 26 of each oil pocket, oil return opening 27 and pressure tap 28, in order to the installation of hydralic hose 16 and layout.Hydrostatic slideway (21) top, under Portion is all disposed with 4 hydrostatic support chambeies, and the left and right sides is respectively disposed with 2 static pressure and props up Hold chamber.
In the three-dimensional simplified schematic diagram of fuel tank of the present invention shown in Fig. 5, Plate Welding form Fuel tank 22 be rectangle, end face be provided with integrated package erecting bed 29, oil return pipe erecting bed 30, Air filter erecting bed 31, fuel sucking pipe erecting bed 32, motor erecting bed 33;Side It is provided with accumulator erecting bed 34, hanger 35 and heater mounting flange 36 etc..
The work process of this testing stand approximately as:
1. overflow valve 3 is left to maximum, close choke valve 19 and choke valve B7.2;
2. actuating motor 5, progressively close off overflow valve 3, observe Pressure gauge 8.1;Work as pressure Power reaches locking overflow valve 3 during 6MPa;
3. choke valve 19, choke valve 7.2 and choke valve 7.1 are opened;
4. metering pin valve 9.1~9.6, observe Pressure gauge 8.2~8.7;When pressure reaches Regulation is stopped during 3MPa;
5. the flow of reading flow gauge 10.1~10.6;In conjunction with Pressure gauge 8.1~8.6 Pressure, calculate static pressure film thickness;
6. regulation choke valve 7.1 and choke valve 7.2, the pressure of observed pressure table 8.8, Calculate the load that plunger case 17 applies;
7. pressure and the effusion meter 10.1~10.6 of Pressure gauge 8.2~8.7 are again read off Flow, calculated static pressure oil film thickness and the performance indications such as bearing capacity, Static stiffness again.

Claims (3)

1. a heavy digital control machine tool hydrostatic slideway performance test hydraulic test bench, its Being characterised by: the import of stop valve B is connected with fuel tank, outlet is connected with filter inlet; The outlet of oil absorption filter is connected with vane pump import;Blade delivery side of pump respectively with high pressure Filter, piezometer, the import of overflow valve are connected;The outlet of overflow valve is connected with fuel tank; The outlet of high pressure filter respectively with choke valve C, choke valve B, the import of stop valve A It is connected;The outlet of stop valve A is connected with the import of accumulator;The outlet of choke valve B divides It is not connected with import, the import of loading cylinder of throttle valve A;The cylinder body loading cylinder is fixed, Plunger rod withstands on hydrostatic slideway body, the outlet of throttle valve A and the import of shutoff valve C It is connected;The outlet of shutoff valve C is connected with the import of forced air cooler;The outlet of forced air cooler It is connected with the import of return filter;The outlet of return filter is connected with fuel tank;Throttling The outlet of valve C import with some needle-valves respectively is connected;The outlet of each needle-valve each with one The import of effusion meter is connected, and the outlet of effusion meter connects the import in corresponding hydrostatic support chamber respectively; The outlet in each hydrostatic support chamber is connected with hydralic hose and merges, common and shutoff valve C Import is connected;The pressure tap in each hydrostatic support chamber is connected with Pressure gauge respectively.
Heavy digital control machine tool hydrostatic slideway performance the most according to claim 1 is surveyed Examination hydraulic test bench, it is characterised in that: be additionally provided with on this fuel tank liquidometer, thermometer and Heater.
Heavy digital control machine tool hydrostatic slideway performance the most according to claim 1 is surveyed Examination hydraulic test bench, it is characterised in that: air filter is installed on fuel tank.
CN201610555822.5A 2016-07-14 2016-07-14 Heavy digital control machine tool hydrostatic slideway performance test hydraulic test bench Active CN106015134B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610555822.5A CN106015134B (en) 2016-07-14 2016-07-14 Heavy digital control machine tool hydrostatic slideway performance test hydraulic test bench

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610555822.5A CN106015134B (en) 2016-07-14 2016-07-14 Heavy digital control machine tool hydrostatic slideway performance test hydraulic test bench

Publications (2)

Publication Number Publication Date
CN106015134A true CN106015134A (en) 2016-10-12
CN106015134B CN106015134B (en) 2017-08-29

Family

ID=57118173

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610555822.5A Active CN106015134B (en) 2016-07-14 2016-07-14 Heavy digital control machine tool hydrostatic slideway performance test hydraulic test bench

Country Status (1)

Country Link
CN (1) CN106015134B (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106525425A (en) * 2016-12-05 2017-03-22 江苏大学 Bearing test device and method for static-pressure radial air bearing
CN108591140A (en) * 2018-04-25 2018-09-28 中国人民解放军空军南京航空四站装备修理厂 The load test stand of aviation hydraulic oil pump vehicle
CN109578351A (en) * 2018-12-18 2019-04-05 燕山大学 A kind of hydraulic power unit of magnetic liquid dual suspension bearing performance test hydraulic test bench
CN109612719A (en) * 2019-02-19 2019-04-12 重庆康明斯发动机有限公司 A kind of detection method of filter life, detection system and detection device
RU2783583C1 (en) * 2022-01-20 2022-11-14 Акционерное общество "Научно-производственная корпорация "Уралвагонзавод" имени Ф.Э. Дзержинского" Stand for dynamic testing of high-pressure hoses

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2754395A1 (en) * 1977-12-07 1979-06-13 Bozina Dr Ing Perovic Machine tool hydrostatic guide oil supply - has pockets connected in threes via common throttles to pump with pressure relief valve
CN101596679A (en) * 2009-07-08 2009-12-09 路文忠 Hydrostatic guideway of liquid discontinuous flow precise circular turntable
CN201534283U (en) * 2009-11-24 2010-07-28 天津市精诚机床制造有限公司 Hydrostatic rail hydraulic system for revolving workbench of heavy numerical control cylindrical gear milling machine
CN201891698U (en) * 2010-11-02 2011-07-06 东华大学 Open type loading adaptive oil supply system for hydrostatic guide way
CN202123363U (en) * 2011-05-31 2012-01-25 四川普什宁江机床有限公司 Hydrostatic guide rail structure applied to precision horizontal machining centre
CN102980755A (en) * 2012-11-16 2013-03-20 北京工业大学 Quantitive type experimental device for dynamic and static performances of static-pressure rotary table
CN103506852A (en) * 2013-09-06 2014-01-15 苏州凯欧机械科技有限公司 Novel static-pressure positioning guide rail used on machine tool knife rest
CN104308561A (en) * 2014-09-19 2015-01-28 井冈山大学 Static pressure guide rail oil film thickness feedback compensation device
CN105108499A (en) * 2015-08-24 2015-12-02 中南大学 Electrorheological fluid hydrostatic guideway system
CN105677972A (en) * 2016-01-07 2016-06-15 燕山大学 Precise bearing capacity calculation method for hydrostatic guide rail

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2754395A1 (en) * 1977-12-07 1979-06-13 Bozina Dr Ing Perovic Machine tool hydrostatic guide oil supply - has pockets connected in threes via common throttles to pump with pressure relief valve
CN101596679A (en) * 2009-07-08 2009-12-09 路文忠 Hydrostatic guideway of liquid discontinuous flow precise circular turntable
CN201534283U (en) * 2009-11-24 2010-07-28 天津市精诚机床制造有限公司 Hydrostatic rail hydraulic system for revolving workbench of heavy numerical control cylindrical gear milling machine
CN201891698U (en) * 2010-11-02 2011-07-06 东华大学 Open type loading adaptive oil supply system for hydrostatic guide way
CN202123363U (en) * 2011-05-31 2012-01-25 四川普什宁江机床有限公司 Hydrostatic guide rail structure applied to precision horizontal machining centre
CN102980755A (en) * 2012-11-16 2013-03-20 北京工业大学 Quantitive type experimental device for dynamic and static performances of static-pressure rotary table
CN103506852A (en) * 2013-09-06 2014-01-15 苏州凯欧机械科技有限公司 Novel static-pressure positioning guide rail used on machine tool knife rest
CN104308561A (en) * 2014-09-19 2015-01-28 井冈山大学 Static pressure guide rail oil film thickness feedback compensation device
CN105108499A (en) * 2015-08-24 2015-12-02 中南大学 Electrorheological fluid hydrostatic guideway system
CN105677972A (en) * 2016-01-07 2016-06-15 燕山大学 Precise bearing capacity calculation method for hydrostatic guide rail

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106525425A (en) * 2016-12-05 2017-03-22 江苏大学 Bearing test device and method for static-pressure radial air bearing
CN108591140A (en) * 2018-04-25 2018-09-28 中国人民解放军空军南京航空四站装备修理厂 The load test stand of aviation hydraulic oil pump vehicle
CN109578351A (en) * 2018-12-18 2019-04-05 燕山大学 A kind of hydraulic power unit of magnetic liquid dual suspension bearing performance test hydraulic test bench
CN109612719A (en) * 2019-02-19 2019-04-12 重庆康明斯发动机有限公司 A kind of detection method of filter life, detection system and detection device
CN109612719B (en) * 2019-02-19 2024-04-26 重庆康明斯发动机有限公司 Filter life detection method, detection system and detection device
RU2783583C1 (en) * 2022-01-20 2022-11-14 Акционерное общество "Научно-производственная корпорация "Уралвагонзавод" имени Ф.Э. Дзержинского" Stand for dynamic testing of high-pressure hoses

Also Published As

Publication number Publication date
CN106015134B (en) 2017-08-29

Similar Documents

Publication Publication Date Title
CN106015134A (en) Performance test hydraulic test stand for hydrostatic guide way of heavy-duty numerical control machine table
CN105673621B (en) A kind of aviation actuator reciprocation sealing multi-state comprehensive simulation test system
CN111811817B (en) High-precision fluid dynamic pressure sliding bearing comprehensive performance test platform
CN107061095B (en) A kind of combined type fuel injector fuel injection characteristic measuring device and measuring method
CN105424361B (en) A kind of liquid closed type static pressure turntable experimental provision of modifiable flow controller
CN103884499B (en) Piston hitting test stand
CN205956117U (en) Let out leakage quantity measuring device in arbitrary stroke position of pneumatic cylinder is small
CN110425189B (en) Ultrahigh-speed turbine pump and overflow valve matching test device
CN203502221U (en) Hydrostatic bearing test bed
CN108535129A (en) The micro-nano impression test system of low temperature that large journey low-temperature floats under micro- component
CN108007786B (en) Double-layer pressure chamber and external body change measuring system
CN206618651U (en) A kind of test device based on gas density in capacitance measurement air film gap
CN103543011A (en) Static-pressure bearing test stand
CN103091070B (en) Tester for parameter of flow field of gas static pressure restrictor
CN110748531A (en) Device for testing liquid leakage amount
CN202133523U (en) Detector for vibration characteristic of static pressure gas bearing
CN103852212A (en) Rolling oil sac seal oil cylinder hydraulic force standard machine
CN207703464U (en) A kind of rotary oil seal property test platform
CN203323945U (en) Liquid piston type pressure gauge
CN111043105A (en) High-power hydraulic comprehensive test bed and test method thereof
CN115436185A (en) Rigidity testing device of flow controller
CN206905985U (en) Air-tightness detection device
CN206514900U (en) A kind of device based on gas density in gas flow measurement air film
CN106563971B (en) A kind of detection device of hydrostatic slideway oil pocket pressure distribution
CN204514603U (en) A kind of experimental provision testing hydrostatic bearing

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant