CN109578351A - A kind of hydraulic power unit of magnetic liquid dual suspension bearing performance test hydraulic test bench - Google Patents
A kind of hydraulic power unit of magnetic liquid dual suspension bearing performance test hydraulic test bench Download PDFInfo
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- CN109578351A CN109578351A CN201811552696.3A CN201811552696A CN109578351A CN 109578351 A CN109578351 A CN 109578351A CN 201811552696 A CN201811552696 A CN 201811552696A CN 109578351 A CN109578351 A CN 109578351A
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- needle
- throttling stop
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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
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- 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
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/04—Special measures taken in connection with the properties of the fluid
- F15B21/041—Removal or measurement of solid or liquid contamination, e.g. filtering
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Magnetic Bearings And Hydrostatic Bearings (AREA)
Abstract
A kind of hydraulic power unit of magnetic liquid dual suspension bearing performance test hydraulic test bench, be mainly: the oil pump being connected with fuel tank is connected by overflow valve and throttling stop valve with 14 needle-valve imports arranged side by side；Wherein there are four the outlets of needle-valve to be successively connected with temperature sensor, pressure sensor and flowmeter import；The outlet of the other ten needle-valve is respectively connected with a pressure sensor import, and the outlet of two of them needle-valve is also connected with the plunger case of the experimental test part of a bearing body respectively；The outlet of remaining eight needle-valves may be connected on the oil inlet of tested magnetic liquid dual suspension bearing, and oil return line outlet end is connected with six throttling stop valves arranged side by side respectively, this six throttling stop valves arranged side by side are connected with total throttling stop valve on a main oil return line, and total throttling stop valve is connected with return filter.The configuration of the present invention is simple can test for magnetic liquid dual suspension bearing performance and provide effective technical guarantee with analysis.
Description
Technical field
The present invention relates to the experimental rigs of a kind of magnetic suspension and liquid static-pressure support technology.
Background technique
Magnetic liquid dual suspension bearing completely carries out axis by electromagnetic force and liquid static-pressure support power since axis is contactless with bearing
Bearing, so it is excellent to have that frictional resistance is almost nil, axis velocity of rotation range is wide, bearing long service life and heavy duty are not creeped etc.
Point has obtained biggish development in magnetic suspension bearing bearing field.But due to the hydrostatic support chamber of magnetic liquid dual suspension bearing is more,
Structure is complicated, and each hydrostatic support chamber bearing capacity intercouples with electromagnetic force, calculates and analyzes and is relatively difficult.Therefore it needs to utilize letter
Single convenient bearing performance test macro tests magnetic liquid dual suspension bearing load carrying capacity, static state and dynamic property, to test
Demonstrate,prove the accuracy of the bearing capacity calculation mode of magnetic liquid dual suspension bearing under different charge oil pressure flows and electromagnetic force.This test system
It is referred to as testing stand comprising the experimental test part of bearing body and the hydraulic power unit being connected by oil inlet with oil return line,
Wherein the experimental test part people of bearing body study it more deep, and existing more mature technology, and matched with it
Hydraulic power unit need further perfect.
Summary of the invention
The purpose of the present invention is to provide a kind of can form with the experimental test part perfect cooperation of bearing body can be simple
The magnetic liquid dual suspension bearing performance easily tested magnetic liquid dual suspension bearing load carrying capacity, static state and dynamic property is tested
The hydraulic power unit of hydraulic test bench.
Hydraulic power unit of the invention mainly includes: oil pump, overflow valve, needle-valve, pressure sensor, flowmeter, throttling are cut
Only valve, temperature sensing, return filter, air cleaner, liquid level liquid thermometer, cooler and fluid pressure line.Wherein, oil pump suction
Mouthful be inserted directly into fuel tank by fuel sucking pipe, oil pump out of the mouth respectively with throttling stop valve, overflow valve, pressure sensor import phase
Even, wherein the outlet of overflow valve is connected to the entrance of return filter, the outlet of throttling stop valve and meanwhile with another import
The outlet of vacant spare flushing throttling stop valve is connected with 14 needle-valve imports arranged side by side on oil circuit；In order to detect simultaneously
Temperature, pressure on the in-line of part, flow information, wherein there are four the outlets of needle-valve successively to pass with temperature sensor, pressure
Sensor and flowmeter import are connected；And the outlet of flowmeter is connected with oil inlet pipe one end respectively, totally four flowmeters are gone here and there respectively
It is associated on four oil inlet pipes, these oil inlet pipes can be connected with the oil inlet of tested magnetic liquid dual suspension bearing；The other ten needle
The outlet of valve is respectively connected with a pressure sensor import, and the outlet of two of them needle-valve also respectively with bearing body
The plunger case of experimental test part is connected；The outlet of remaining eight needle-valves may be connected to tested magnetic liquid dual suspension by oil inlet pipe
On the oil inlet of bearing；Oil return line input end is connected with the oil outlet of tested magnetic liquid dual suspension bearing, and oil return line exports
End is connected with six throttling stop valve imports arranged side by side respectively, the outlets of this six throttling stop valves arranged side by side pass through pipeline with
Total throttling stop valve import on one main oil return line is connected, and is equipped on the main oil return line temperature sensor and another
One flushing throttling stop valve, the import of the flushing throttling stop valve is vacant spare, and outlet is connected on main oil return line；It is described
There are two be equipped with concatenated flowmeter, while the two flows on throttling stop valve pipeline in six throttling stop valves arranged side by side
Meter is connected on two oil return lines respectively again, for detecting the return flow of the two oil return lines；Total throttle check
Valve outlet is connected with return filter import；Return filter outlet is connected with air cooler import, air cooler outlet and oil
Case is connected.In addition, shut-off valve, air cleaner, liquid level liquid thermometer are all mounted on fuel tank.
The invention has the following advantages over the prior art: structure is simple, it can be with the experimental test part of bearing body
Complete magnetic liquid dual suspension bearing performance test hydraulic test bench is formed, it is double to input magnetic liquid by flowmeter and pressure sensor
Oil liquid pressure, flow in suspension bearing inside static pressure supporting cavity are detected, and it is double outstanding to change magnetic liquid by metering pin valve aperture
Floating axle holds the oil film thickness in hydrostatic support chamber, to control the bearing capacity of hydrostatic support chamber.It is double that the present invention can test magnetic liquid
Bearing capacity, oil film rigidity, static state and the dynamic property of suspension bearing improve the design accuracy of magnetic liquid dual suspension bearing, are magnetic
The test of liquid dual suspension bearing performance provides effective technical guarantee with analysis.
Detailed description of the invention
Fig. 1 is process simplified schematic diagram of the present invention.
Fig. 2 is use state solid simplified schematic diagram of the embodiment of the present invention.
Fig. 3 is use state main view schematic diagram of the embodiment of the present invention.
Fig. 4 is fuel tank solid simplified schematic diagram of the embodiment of the present invention.
Fig. 5 is oil return valve block solid simplified schematic diagram of the embodiment of the present invention.
Fig. 6 is overflow valve block solid simplified schematic diagram of the embodiment of the present invention.
Fig. 7 is oil inlet valve block solid simplified schematic diagram of the embodiment of the present invention.
In figure: 1, fuel tank, 2, oil pump, 3, overflow valve, 4, needle-valve (4.1-4.14), 5, pressure sensor (5.1-5.15),
6, plunger case A, 7, plunger case B, 8, throttling stop valve (8.1-8.8), 9, flowmeter (9.1-9.6), 10, temperature sensor
(10.1-10.5), 11, return filter, 12, air cleaner, 13, shut-off valve, 14, liquid level liquid thermometer, 15, air cooler,
16, oil inlet valve block, 17, oil return valve block, 18, overflow valve block, 19, oil inlet pipe (19.1-19.14), 20, oil return line (20.1-
20.6), 21, platform, 22, magnetic liquid dual suspension bearing A, 23, magnetic liquid dual suspension bearing B, 24, axis, 25, motor A, 26, motor B,
27, motor installation base, 28, air cleaner installation base, 29, oil return pipe through-hole, 30, fuel-displaced pipe through-hole, 31, liquid level temperature
Count mounting hole, 32, lifting lug, 33, dust cover mounting hole (33.1,33.2), 34, air cooler installation base.
Specific embodiment
A kind of hydraulic power unit process simplified schematic diagram of magnetic liquid dual suspension bearing performance test hydraulic test bench shown in Fig. 1
In, 2 inlet port of oil pump is inserted directly into fuel tank 1 by fuel sucking pipe, oil pump out of the mouth respectively with throttling stop valve 8.2, overflow valve 3
And 5.15 import of pressure sensor is connected, wherein the outlet of overflow valve is connected to the entrance of return filter 11；Throttle check
The outlet of valve 8.2 while arranged side by side with another import vacant spare flushing outlet of throttling stop valve 8.1 and oil circuit ten
The import of four needle-valve 4.1-4.14 is connected, and will above include overflow valve 3, throttling stop valve 8.1,8.2 and pressure in processing
Combine referred to as overflow valve block 18 in 5.15 part of sensor；For temperature, the pressure, stream simultaneously on detection part in-line
Measure information, wherein there are four needle-valve 4.1-4.4 outlet successively with temperature sensor 10.1-10.4, pressure sensor 5.1-5.4
And flowmeter 9.1-9.4 is connected；And the outlet of flowmeter 9.1-9.4 is connected with the one end oil inlet pipe 19.1-19.4 respectively, these
Pipeline can be connected with the oil inlet of tested magnetic liquid dual suspension bearing；The outlet of the other ten needle-valve 4.5-4.14 respectively with a pressure
Sensor 5.5-5.14 import is connected, and the outlet also test with a bearing body respectively of two of them needle-valve 4.7,4.10
A plunger case A, the plunger case B of part of detecting are connected；Remaining eight needle-valves 4.5,4.6,4.8,4.9, the outlet of 4.11-4.14 it is logical
Oil inlet pipe 19 is crossed to be connected on the oil inlet of tested magnetic liquid dual suspension bearing；It will above include needle-valve 4.1- in processing
4.14, referred to as oil inlet valve block 16, flow are combined in pressure sensor 5.1-5.14, the part temperature sensor 10.1-10.4
Meter 9.1-9.4 is then connected on oil inlet pipe 19.1-19.4 respectively.20 input end of oil return line and tested magnetic liquid dual suspension bearing
Oil outlet be connected, and 20 outlet end of oil return line is connected with six throttling stop valve 8.3-8.8 imports arranged side by side respectively, this six
A throttling stop valve 8.3-8.8 arranged side by side outlet by pipeline with total throttling stop valve 8.10 on a main oil return line into
Mouth is connected, and a temperature sensor 10.5 and another flushing throttling stop valve 8.9 are equipped on the main oil return line, should
It rinses and uses the import of throttling stop valve 8.9 vacant spare, outlet is connected on main oil return line；Six throttling stop valves arranged side by side
There are two be equipped with concatenated flowmeter 9.5,9.6 on the pipeline of throttling stop valve 8.7,8.8 in 8.3-8.8；Total throttling
The outlet of shut-off valve 8.10 is connected with 11 import of return filter；The outlet of return filter 11 is connected with 16 import of air cooler, wind
The outlet of cooler 16 is connected with fuel tank.Processing when will include above throttling stop valve 8.3-8.10, temperature sensor 10.5 and
Referred to as oil return valve block 19 is combined in 11 part of return filter, and flowmeter 9.5-9.6 is connected on oil return line.In addition,
Shut-off valve 13, air cleaner 12, liquid level liquid thermometer 14 are all mounted on fuel tank.
The preferred embodiment of each component is as follows in Fig. 1: the model TGPVL4-200SH of motor A25, the model of overflow valve 3
The model EGE-S10-3/8-SS of DBDH10P10B200, needle-valve 4.1-4.14, the model of pressure sensor 5.1-5.14
HSTL-800, plunger case A6 and plunger case B7 are respectively 40 diameter of plunger 83 of stroke and 30 diameter of plunger 72 of stroke, flowmeter
9.1-9.6 is OG1 elliptic gear flow sensor, throttling stop valve 8.1-8.8 model DVP10-S-3-10-B, temperature sensing
Device 10.1-10.5 model HSTL-103,11 model ZU-A63*B10P of return filter, 12 model of air cleaner
EF1-25, liquid level liquid thermometer 14/ are YWZ150T, 15 model DEL-2 of air cooler.
In Fig. 2 and use state of embodiment of the present invention simplified schematic diagram shown in Fig. 3, in the platform being welded by steel plate
Side is equipped with mainly by magnetic liquid dual suspension bearing A22, magnetic liquid dual suspension bearing B23, axis 28, motor B26 and plunger case A6 on 21
With the experimental test part of the bearing body of plunger case B7 composition.One end and tested magnetic liquid dual suspension bearing fuel feed hole and plunger case
The needle-valve in oil inlet valve block 16 on A6, plunger case B7 connected oil inlet pipe 19, the other end and platform other side fuel tank
4.1-4.14, temperature sensor 10.1-10.4, pressure sensor 5.1-5.14 and flowmeter 9.1-9.4 press the sequence phase of Fig. 1
Even；And the oil return line 20 that one end is connected with tested magnetic liquid dual suspension bearing A22, magnetic liquid dual suspension bearing B23 oil return hole, it is another
It each throttling stop valve 8.3-8.10, temperature sensor 10.5 and is returned in oil return valve block 17 on one end and platform other side fuel tank 1
Oil strainer 11 is connected by the sequence of Fig. 1.In addition to this, fuel tank 1 is additionally provided with motor 2, air cooler 15 above.
In fuel tank of embodiment of the present invention solid simplified schematic diagram shown in Fig. 4, the top of the fuel tank of lifting lug 32 is equipped in side
Face is equipped with motor installation base 27, air cleaner installation base 28 and air cooler installation base 34；It is installed in air cooler
Boss 34 nearby be equipped with oil return pipe through-hole 29, in can be equipped with the oil return pipe being connected with air cooler；Separately also set in fuel tank top surface
Have fuel-displaced pipe through-hole 30, in can be equipped with the flowline being connected with oil pump 2.Liquid level liquid thermometer mounting hole is equipped in fuel tank side
31。
In oil return valve block solid simplified schematic diagram of the embodiment of the present invention shown in Fig. 5, throttling stop valve 8.3-8.9 is with one
A total throttling stop valve 8.10 is connected, and throttling stop valve 8.10 is connected with return filter 11, be additionally provided on pipeline and
The connected temperature sensor 10.5 of throttling stop valve 8.10.
In overflow valve block solid simplified schematic diagram of the embodiment of the present invention shown in Fig. 6, overflow valve 3 both with a pressure sensing
Device 5.15 is connected, and is connected with throttling stop valve 8.2, while being connected further through throttling stop valve 8.2 with throttling stop valve 8.1.
In oil inlet valve block solid simplified schematic diagram of the embodiment of the present invention shown in Fig. 7, pressure sensor 5.1-5.14 difference
It is connected to form 14 with needle-valve 4.1-4.14 to combine, they are separately mounted to valve block two sides, and wherein two below two sides combine
Also respectively it is connected with a temperature sensor 10.1-10.4.
When the course of work of the invention starts approximately as: testing stand, open overflow valve (3), so that hydraulic system no-load
Starting；It adjusts throttling stop valve (8.2), the charge oil pressure of overall adjustment magnetic liquid dual suspension bearing (22,23)；Successively adjust oil inlet
Needle-valve (4.1-4.14) in valve block (16) observes the reading of pressure sensor (5.1-5.14) in parallel, and it is double to adjust each magnetic liquid
The charge oil pressure of suspension bearing (22,23) hydrostatic support chamber, so that the static and dynamic performance of magnetic liquid dual suspension bearing meets performance
Setting value；Metering pin valve (4.7,4.10) obtains the different on-load pressures of plunger case (A6, B7), to magnetic liquid dual suspension bearing arrangement
Apply different service loads.
Claims (3)
1. a kind of hydraulic power unit of magnetic liquid dual suspension bearing performance test hydraulic test bench, it is characterised in that: oil pump suction mouth is logical
Fuel sucking pipe to be crossed to be inserted directly into fuel tank, oil pump out of the mouth is connected with throttling stop valve, overflow valve, pressure sensor import respectively,
The wherein outlet of overflow valve is connected to the entrance of return filter, arranged side by side 14 in the outlet of throttling stop valve and oil circuit
Needle-valve import is connected；Wherein there are four the outlets of needle-valve to be successively connected with temperature sensor, pressure sensor and flowmeter import；
And the outlet of flowmeter is connected with oil inlet pipe one end respectively, totally four flowmeters are connected on respectively on four oil inlet pipes, this
A little oil inlet pipes can be connected with the oil inlet of tested magnetic liquid dual suspension bearing；The outlet of the other ten needle-valve is respectively passed with a pressure
Sensor import is connected, and the outlet also plunger case phase with the experimental test part of a bearing body respectively of two of them needle-valve
Even；The outlet of remaining eight needle-valves is may be connected to by oil inlet pipe on the oil inlet of tested magnetic liquid dual suspension bearing；Oil return pipe
Road input end is connected with the oil outlet of tested magnetic liquid dual suspension bearing, and oil return line outlet end respectively with six throttlings arranged side by side
Shut-off valve import be connected, this six throttling stop valves arranged side by side outlet by pipeline with total throttling on a main oil return line
Shut-off valve import is connected, and is equipped with a temperature sensor outlet on main oil return line and is connected on main oil return line；It is described arranged side by side
Six throttling stop valves in there are two being equipped with concatenated flowmeter on throttling stop valve pipeline, while the two flows are scored
It is not connected on two oil return lines；Total throttle check valve outlet is connected with return filter import；Return filter goes out
Mouth is connected with air cooler import, and air cooler outlet is connected with fuel tank；In addition, shut-off valve, air cleaner, liquid level liquid thermometer
All it is mounted on fuel tank.
2. the hydraulic power unit of magnetic liquid dual suspension bearing performance test hydraulic test bench according to claim 1, feature exist
In the outlet of: the throttling stop valve being connected with overflow valve simultaneously with the vacant spare flushing throttling stop valve of another import
It exports and is connected with 14 needle-valve imports arranged side by side on oil circuit.
3. the hydraulic power unit of magnetic liquid dual suspension bearing performance test hydraulic test bench according to claim 1, feature exist
In: another flushing throttling stop valve is also equipped on main oil return line, the import of the flushing throttling stop valve is vacant standby
With outlet is connected on main oil return line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811552696.3A CN109578351A (en) | 2018-12-18 | 2018-12-18 | A kind of hydraulic power unit of magnetic liquid dual suspension bearing performance test hydraulic test bench |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811552696.3A CN109578351A (en) | 2018-12-18 | 2018-12-18 | A kind of hydraulic power unit of magnetic liquid dual suspension bearing performance test hydraulic test bench |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109578351A true CN109578351A (en) | 2019-04-05 |
Family
ID=65929946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811552696.3A Pending CN109578351A (en) | 2018-12-18 | 2018-12-18 | A kind of hydraulic power unit of magnetic liquid dual suspension bearing performance test hydraulic test bench |
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| CN (1) | CN109578351A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6424707U (en) * | 1987-07-31 | 1989-02-10 | ||
| CN103698128A (en) * | 2013-12-23 | 2014-04-02 | 武汉理工大学 | Large-air gap mixed magnetic bearing performance testing device |
| CN103884507A (en) * | 2014-04-16 | 2014-06-25 | 郑州大学 | Testing device for static characteristics of magnetic bearing |
| CN105157982A (en) * | 2015-06-18 | 2015-12-16 | 哈尔滨工业大学 | Low-coupling axial and radial combined loading device for rolling bearing and loading method |
| CN106015134A (en) * | 2016-07-14 | 2016-10-12 | 燕山大学 | Performance test hydraulic test stand for hydrostatic guide way of heavy-duty numerical control machine table |
| CN108760304A (en) * | 2018-06-08 | 2018-11-06 | 燕山大学 | A kind of magnetic liquid dual suspension bearing performance test experiment porch |
-
2018
- 2018-12-18 CN CN201811552696.3A patent/CN109578351A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6424707U (en) * | 1987-07-31 | 1989-02-10 | ||
| CN103698128A (en) * | 2013-12-23 | 2014-04-02 | 武汉理工大学 | Large-air gap mixed magnetic bearing performance testing device |
| CN103884507A (en) * | 2014-04-16 | 2014-06-25 | 郑州大学 | Testing device for static characteristics of magnetic bearing |
| CN105157982A (en) * | 2015-06-18 | 2015-12-16 | 哈尔滨工业大学 | Low-coupling axial and radial combined loading device for rolling bearing and loading method |
| CN106015134A (en) * | 2016-07-14 | 2016-10-12 | 燕山大学 | Performance test hydraulic test stand for hydrostatic guide way of heavy-duty numerical control machine table |
| CN108760304A (en) * | 2018-06-08 | 2018-11-06 | 燕山大学 | A kind of magnetic liquid dual suspension bearing performance test experiment porch |
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Application publication date: 20190405 |