CN207195332U - The hydraulic control system of oscillation bearing testing machine - Google Patents
The hydraulic control system of oscillation bearing testing machine Download PDFInfo
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- CN207195332U CN207195332U CN201721128107.XU CN201721128107U CN207195332U CN 207195332 U CN207195332 U CN 207195332U CN 201721128107 U CN201721128107 U CN 201721128107U CN 207195332 U CN207195332 U CN 207195332U
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Abstract
The utility model discloses the hydraulic control system of oscillation bearing testing machine, it is related to the hydraulic control system field of testing machine, including fuel tank, the oil-out of fuel tank is connected with the power source component for providing oil circulation power, power source component is connected with high pressure filter, high pressure filter connects electromagnetic relief valve and accumulator, accumulator is connected with servo valve, servo valve is connected with oscillating cylinder, servo valve and electromagnetic relief valve oil return simultaneously enter return filter, return filter connects fuel tank, the cooling component for reducing returning-oil temperature is provided between servo valve and return filter.Oscillating cylinder carries out load test to bearing; the motion station of oscillating cylinder is divided into advance, loading, retrogressing and off-load; pass through the switching of servo valve control oscillating cylinder main actions; so as to which single cylinder can realize the adjustment of multistation, the safety of fluid and system is protected by electromagnetic relief valve, during experiment; oscillating cylinder is reliable; safe, interference is small, and test data is accurate.
Description
Technical field
The hydraulic control system field of testing machine is the utility model is related to, more specifically, it relates to which oscillation bearing is tested
The hydraulic control system of machine.
Background technology
Oscillation bearing testing stand is generally widely used in design and the research and development field of Aeronautics and Astronautics and civilian bearing, leads to
Oscillating cylinder on overtesting platform loads to bearing, different operating modes when simulation uses, so as to reach check bearing reliability
Effect.
In view of the above-mentioned problems, patent announcement number is CN105157982A Chinese patent, it is proposed that the low coupling of rolling bearing
Sympodium extracts the oil in small fuel tank, is finally injected into pressure oil and enters to radial compound loading device, including small fuel tank, hydraulic pump
Mouthful, fluid pressure bearing capacity is produced after fluid pressure throttle orifice, hydraulic pressure Moving plate and hydraulic static are connected by elastic connection sleeve
Disk, reduce the effect of different directions load coupling.
The loading work of diverse location is realized in above-mentioned patent by multiple loading cylinders, but during actual tests, due to
Bearing is precision instrument part, it is necessary to exactly accurate experimental data, while loads and can cause on the contrary so that influenced each other between cylinder body
The test data of acquisition does not prepare, and causes the reliability of final result to reduce.
Utility model content
For reliability it is low the problem of, the utility model purpose be propose single cylinder realize multistation action oscillation bearing
The hydraulic control system of testing machine, concrete scheme are as follows：
The hydraulic control system of oscillation bearing testing machine, including fuel tank, the oil-out of the fuel tank are connected with for providing
The power source component of oil circulation power, the power source component are connected with high pressure filter, and the high pressure filter simultaneously simultaneously
Electromagnetic relief valve and accumulator are associated with, the accumulator is connected with servo valve, and the servo valve is connected with oscillating cylinder, the servo
Valve and electromagnetic relief valve oil return simultaneously enter return filter, and the return filter connects the fuel tank, the servo
The cooling component for reducing returning-oil temperature is provided between valve and the return filter.
Pass through above-mentioned technical proposal, oscillating cylinder carry out load test to bearing, and the motion station of oscillating cylinder is divided into advance, added
Load, retrogressing and off-load, by the switching of servo valve control oscillating cylinder main actions, so as to which single cylinder can realize the tune of multistation
It is whole, the safety of fluid and system is protected by electromagnetic relief valve, during experiment, oscillating cylinder is reliable, safe, does
Immunity is small, and test data is accurate.
Further, be provided with two position three-way valve between the accumulator and the servo valve, the two position three-way valve with
Pressure regulation oil circuit is provided between the servo valve, choke valve is provided with the pressure regulation oil circuit.
Pass through above-mentioned technical proposal, when two position three-way valve is in right working position, the oil pressure into oscillating cylinder can be controlled, is made
Obtaining the on-load pressure of oscillating cylinder can control, and then realize the applied voltage test of tiny load.
Further, the power source component includes hydraulic pump, motor and middle cover shaft coupling, the hydraulic pump and institute
State and connected by the middle cover shaft coupling between motor.
Pass through above-mentioned technical proposal, motor drive hydraulic pump linkage, and middle cover shaft coupling plays a protective role.
Further, the cooling component includes the air cooling being placed between the servo valve and the return filter
Device, temperature sensor is provided with the fuel tank.
Pass through above-mentioned technical proposal, temperature sensor detection fuel tank inner fluid temperature, when temperature is higher than 45 degree, forced air cooler
Start, backflow fluid is cooled down, when temperature is less than 45 degree, forced air cooler is closed.
Further, check valve, the outlet of the accumulator are provided between the high pressure filter and the accumulator
Ball valve is provided with end.
Pass through above-mentioned technical proposal, after accumulator stores energy, check valve prevents fluid from flowing back, and ball valve can control accumulation of energy
The keying of device.
Further, pressure sensor and first pressure are provided between the high pressure filter and the electromagnetic relief valve
Table, second pressure gauge is provided between the accumulator and the servo valve.
Pass through above-mentioned technical proposal, testing machine need the moment to detect oil liquid pressure, first pressure table detection electromagnetic relief valve
Pressure data can be transferred to control panel, the outlet of second pressure gauge detection accumulator by the pressure of entrance point, pressure sensor
The pressure at end.
Further, hydralic hose, the servo valve are provided between the high pressure filter and the electromagnetic relief valve
It is provided with hydralic hose between the forced air cooler and the return filter between the forced air cooler, described first
Pressure gauge and the interface of the second pressure gauge are provided with pressure measurement flexible pipe.
Pass through above-mentioned technical proposal, hydralic hose are used to connecting the port of export of high pressure filter, and pressure measurement flexible pipe is connected with the
One pressure gauge and second pressure gauge, convenient installation.
Further, liquid level liquid thermometer and liquid level relay are provided with the fuel tank, the fuel tank bottom, which is provided with, lets out
Valve is flowed, the fuel tank top is provided with moisture-absorbing air filter.
Pass through above-mentioned technical proposal, liquid level liquid thermometer show the liquid level and temperature of hydraulic oil, and liquid level relay will be believed
Number control panel is transferred to, plays alarm function, eduction valve conveniently discharges the fluid in fuel tank, and moisture absorption air-filtering has moisture absorption
With air filter function, the air in fuel tank can be dehumidified by built-in hygroscopic material, reduce fuel tank steam.
Further, the return filter both ends have been arranged in parallel check valve.
Pass through above-mentioned technical proposal, when return filter blocks, check valve can play through-flow effect.
Further, it is provided with two-position four-way valve on the control oil circuit of the electromagnetic relief valve.
Pass through above-mentioned technical proposal, when two-position four-way valve is in left station, oscillating cylinder advances and loading, electromagnetic relief valve
Regulating system flow is played simultaneously, and the effect of protection working oil path safety, when two-position four-way valve is in right working position, oscillating cylinder unloads
Lotus, reduce system loss.
Compared with prior art, the beneficial effects of the utility model are as follows：
The oscillating cylinder of testing machine carries out load test to bearing, the motion station of oscillating cylinder can be subdivided into advance, loading,
Retreat and off-load, the switching of oscillating cylinder main actions is controlled by servo valve and electromagnetic relief valve, so as to which single oscillating cylinder can be with
The adjustment of multistation is realized, electromagnetic relief valve protects the safety of fluid and system simultaneously, and oscillating cylinder can be carried greatly simultaneously
Lotus and side crops industry experiment, during experiment, oscillating cylinder is reliable, safe, and interference is small, and test data is accurate, ensures
The accuracy of experimental result.
Brief description of the drawings
Fig. 1 is the hydraulic control system figure of oscillation bearing testing machine.
Reference：1st, fuel tank；2nd, high pressure filter；3rd, electromagnetic relief valve；4th, accumulator；5th, servo valve；6th, oscillating cylinder；
7th, return filter；8th, hydraulic pump；9th, motor；10th, middle cover shaft coupling；11st, forced air cooler；12nd, temperature sensor；13、
Check valve；14th, ball valve；15th, pressure sensor；16th, first pressure table；17th, second pressure gauge；18th, hydralic hose；19th, pressure measurement
Flexible pipe；20th, liquid level liquid thermometer；21st, liquid level relay；22nd, eduction valve；23rd, moisture-absorbing air filter；24th, check valve；25th, two
Position four-way valve；26th, two position three-way valve；27th, pressure regulation oil circuit；28th, choke valve.
Embodiment
In order that the purpose of this utility model, technical scheme and beneficial effect are clearer, with reference to embodiment and attached
The utility model is described in further detail for figure, but embodiment of the present utility model is not limited only to this.
As shown in figure 1, the hydraulic control system of oscillation bearing testing machine, including fuel tank 1, the oil-out of fuel tank 1 are connected with
For providing the power source component of oil circulation power.Power source component includes hydraulic pump 8, motor 9 and middle cover shaft coupling
10, hydraulic pump 8 connects with the oil-out of fuel tank 1, and the side of hydraulic pump 8 is connected with motor 9, hydraulic pump 8 and driving electricity
It is fixedly connected between machine 9 by middle cover shaft coupling 10.Motor 9 drives hydraulic pump 8 to link, and middle cover shaft coupling 10 plays protection
Effect.
The one end of hydraulic pump 8 away from fuel tank 1 is communicated with one end of high pressure filter 2, the other end connection of high pressure filter 2
There is one end of electromagnetic relief valve 3, electromagnetic relief valve 3 includes overflow valve, two-position four-way valve is connected with the control oil circuit of overflow valve
25.The other end of high pressure filter 2 is communicated with accumulator 4 simultaneously.Accumulator 4 plays a part of stored energy.Accumulator 4 and height
Press through and be connected with check valve 13 between filter 2.Folk prescription valve 13 prevents hydraulic oil from flowing back.The port of export of accumulator 4 is connected with ball valve
14.Ball valve 14 can play a part of being opened and closed accumulator 4.
Accumulator 4 is connected with the P mouths of servo valve 5 simultaneously, and servo valve 5 is three-position four-way valve, and the inside of servo valve 5 is provided with amplification
Device, the A mouths of servo valve 5 are connected with the rod chamber of oscillating cylinder 6, and the rodless cavity of oscillating cylinder 6 is connected with the B mouths of servo valve 5, servo valve
5 T mouths and the other end of electromagnetic relief valve 3 are connected with the cooling component for reducing returning-oil temperature simultaneously.The motion of oscillating cylinder 6
Process is divided into advance, loading, retrogressing and off-load, and experiment effect is played to bearing.
Two position three-way valve 26 is connected between accumulator 4 and the A mouths of servo valve 5, between two position three-way valve 26 and servo valve 5
Pressure regulation oil circuit 27 is also communicated with simultaneously, choke valve 28 is connected with pressure regulation oil circuit 27.When the right working position of two position three-way valve 26 obtains electric,
The oil pressure into oscillating cylinder 6 can be controlled so that the on-load pressure of oscillating cylinder 6 can control, and then realize the pressurization of tiny load
Experiment.
Cooling component includes the forced air cooler 11 being placed between servo valve 5 and return filter 7, and temperature is provided with fuel tank 1
Spend sensor 12.Temperature sensor 12 detects the inner fluid temperature of fuel tank 1, and when temperature is higher than 45 degree, forced air cooler 11 starts, to returning
Stream fluid is cooled down, and when temperature is less than 45 degree, forced air cooler 11 is closed.Forced air cooler 11 is communicated with away from the one end of servo valve 5
The one end of return filter 7, the connection of the other end of return filter 7 enter fuel tank 1, and the both ends of return filter 7 are connected in parallel to unidirectionally
Valve 24.Return filter 7 plays a part of filtering oil return, and when return filter 7 blocks, check valve 24 can play through-flow
Effect.
Pressure sensor 15 and first pressure table 16, accumulator 4 are connected between high pressure filter 2 and electromagnetic relief valve 3
Second pressure gauge 17 is connected between servo valve 5.The testing machine moment is examined by first pressure table 16 and second pressure gauge 17
Oil liquid pressure is surveyed, first pressure table 16 detects the pressure of the entrance point of electromagnetic relief valve 3, and pressure sensor 15 can be by pressure data
Control panel is transferred to, second pressure gauge 17 detects the pressure of the port of export of accumulator 4.High pressure filter 2 and electromagnetic relief valve 3 it
Between connected by hydralic hose 18, connected between servo valve 5 and forced air cooler 11 by hydralic hose 18, forced air cooler 11 and return
Connected by hydralic hose 18 between oil strainer 7, connected between first pressure table 16 and electromagnetic relief valve 3 by pressure measurement flexible pipe 19
It is logical, connected between second pressure gauge 17 and two position three-way valve 26 by pressure measurement flexible pipe 19.
Liquid level liquid thermometer 20 and liquid level relay 21 are installed, the bottom of fuel tank 1 is communicated with eduction valve 22, fuel tank 1 in fuel tank 1
Top is provided with moisture-absorbing air filter 23.Liquid level liquid thermometer 20 shows the liquid level and temperature of hydraulic oil, liquid level relay
21 transmit a signal to control panel, play alarm function, the convenient fluid discharged in fuel tank 1 of eduction valve 22, moisture absorption air filter
Clear device 23 has moisture absorption and air filtering function, can be in fuel tank 1 by hygroscopic material built in moisture-absorbing air filter 23
Air is dehumidified, and reduces the steam in fuel tank 1.
Working principle and beneficial effect of the present utility model is as follows：
Motor 9 starts, and hydraulic pump 8 extracts oil pressure in fuel tank 1 and squeezes into hydraulic system, and accumulator 4 collects energy, fluid
Into servo valve 5, when 5 left station of servo valve obtains electric, oscillating cylinder 6 is advanced until stress state, when the right working position of servo valve 5 obtains electric,
Oscillating cylinder 6 retreats, when two-position four-way valve 25 is in right working position and obtains electric, the off-load of oscillating cylinder 6.When ball valve 14 is closed, two position three-way valve
26 it is electric after, fluid by choke valve 28 enter servo valve 5, can now carry out side crops industry experiment.
The oscillating cylinder 6 of testing machine carries out load test to bearing, and the motion station of oscillating cylinder 6 can be subdivided into advance, add
Load, retrogressing and off-load, the switching of the main actions of oscillating cylinder 6 is controlled by servo valve 5 and electromagnetic relief valve 3, so as to single swing
Cylinder 6 can realize the adjustment of multistation, and electromagnetic relief valve 3 protects the safety of fluid and system simultaneously, and oscillating cylinder 6 simultaneously can be with
Big load and side crops industry experiment are carried out, during experiment, oscillating cylinder 6 is reliable, safe, and interference is small, test data
Accurately, the accuracy of experimental result is ensured.
Described above is only preferred embodiment of the present utility model, and the scope of protection of the utility model is not limited merely to
Above-described embodiment, all technical schemes belonged under the utility model thinking belong to the scope of protection of the utility model.It should refer to
Go out, for those skilled in the art, some improvement under the premise of the utility model principle is not departed from and
Retouching, these improvements and modifications also should be regarded as the scope of protection of the utility model.
Claims (10)
1. the hydraulic control system of oscillation bearing testing machine, it is characterised in that including fuel tank（1）, the fuel tank（1）Oil-out
The power source component for providing oil circulation power is connected with, the power source component is connected with high pressure filter（2）, it is described
High pressure filter（2）It is parallel with electromagnetic relief valve simultaneously（3）And accumulator（4）, the accumulator（4）It is connected with servo valve（5）,
The servo valve（5）It is connected with oscillating cylinder（6）, the servo valve（5）With the electromagnetic relief valve（3）Oil return simultaneously enters oil return
Filter（7）, the return filter（7）Connect the fuel tank（1）, the servo valve（5）With the return filter（7）It
Between be provided with cooling component for reducing returning-oil temperature.
2. the hydraulic control system of oscillation bearing testing machine according to claim 1, it is characterised in that the accumulator
（4）With the servo valve（5）Between be provided with two position three-way valve（26）, the two position three-way valve（26）With the servo valve（5）
Between be provided with pressure regulation oil circuit（27）, the pressure regulation oil circuit（27）On be provided with choke valve（28）.
3. the hydraulic control system of oscillation bearing testing machine according to claim 2, it is characterised in that the power source group
Part includes hydraulic pump（8）, motor（9）With middle cover shaft coupling（10）, the hydraulic pump（8）With the motor（9）It
Between pass through the middle cover shaft coupling（10）Connection.
4. the hydraulic control system of oscillation bearing testing machine according to claim 3, it is characterised in that the cooling component
Including being placed in the servo valve（5）With the return filter（7）Between forced air cooler（11）, the fuel tank（1）Interior setting
There is temperature sensor（12）.
5. the hydraulic control system of oscillation bearing testing machine according to claim 4, it is characterised in that the high-pressure filteration
Device（2）With the accumulator（4）Between be provided with check valve（13）, the accumulator（4）The port of export at be provided with ball valve
（14）.
6. the hydraulic control system of oscillation bearing testing machine according to claim 5, it is characterised in that the high-pressure filteration
Device（2）With the electromagnetic relief valve（3）Between be provided with pressure sensor（15）With first pressure table（16）, the accumulator
（4）With the servo valve（5）Between be provided with second pressure gauge（17）.
7. the hydraulic control system of oscillation bearing testing machine according to claim 6, it is characterised in that the high-pressure filteration
Device（2）With the electromagnetic relief valve（3）Between be provided with hydralic hose（18）, the servo valve（5）With the forced air cooler
（11）Between with the forced air cooler（11）With the return filter（7）Between be provided with hydralic hose（18）, described
One pressure gauge（16）With the second pressure gauge（17）Interface be provided with pressure measurement flexible pipe（19）.
8. the hydraulic control system of oscillation bearing testing machine according to claim 7, it is characterised in that the fuel tank（1）
Inside it is provided with liquid level liquid thermometer（20）And liquid level relay（21）, the fuel tank（1）Bottom is provided with eduction valve（22）, the oil
Case（1）Top is provided with moisture-absorbing air filter（23）.
9. the hydraulic control system of oscillation bearing testing machine according to claim 8, it is characterised in that the oil return filter
Device（7）Both ends have been arranged in parallel check valve（24）.
10. the hydraulic control system of oscillation bearing testing machine according to claim 1, it is characterised in that the electromagnetism overflows
Flow valve（3）Control oil circuit on be provided with two-position four-way valve（25）.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721128107.XU CN207195332U (en) | 2017-09-04 | 2017-09-04 | The hydraulic control system of oscillation bearing testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721128107.XU CN207195332U (en) | 2017-09-04 | 2017-09-04 | The hydraulic control system of oscillation bearing testing machine |
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| CN207195332U true CN207195332U (en) | 2018-04-06 |
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ID=61790824
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| CN201721128107.XU Active CN207195332U (en) | 2017-09-04 | 2017-09-04 | The hydraulic control system of oscillation bearing testing machine |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953248A (en) * | 2018-08-02 | 2018-12-07 | 河北工业大学 | Hydraulic test system for axial force load |
| CN109030195A (en) * | 2018-08-02 | 2018-12-18 | 河北工业大学 | Test device for different-thickness part fatigue test |
| CN109142109A (en) * | 2018-08-02 | 2019-01-04 | 河北工业大学 | Shaft radial load loading device |
| CN109210026A (en) * | 2018-08-02 | 2019-01-15 | 清华大学 | Hydraulic loading system for the load of a variety of load |
| CN109826150A (en) * | 2019-02-17 | 2019-05-31 | 杨晓伟 | High-speed rail tunnel icicle removes robot |
| CN110388338A (en) * | 2019-08-13 | 2019-10-29 | 中国船舶重工集团公司第七一九研究所 | Offshore platform novel energy-storing hydraulic system |
| CN111536084A (en) * | 2020-05-21 | 2020-08-14 | 哈尔滨广瀚新能动力有限公司 | Water inlet and outlet valve control device of hydraulic dynamometer |
| CN113096980A (en) * | 2021-03-31 | 2021-07-09 | 西安交通大学 | Quick reversing device and method for on-load tap-changer based on hydraulic transmission |
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2017
- 2017-09-04 CN CN201721128107.XU patent/CN207195332U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108953248A (en) * | 2018-08-02 | 2018-12-07 | 河北工业大学 | Hydraulic test system for axial force load |
| CN109030195A (en) * | 2018-08-02 | 2018-12-18 | 河北工业大学 | Test device for different-thickness part fatigue test |
| CN109142109A (en) * | 2018-08-02 | 2019-01-04 | 河北工业大学 | Shaft radial load loading device |
| CN109210026A (en) * | 2018-08-02 | 2019-01-15 | 清华大学 | Hydraulic loading system for the load of a variety of load |
| CN109826150A (en) * | 2019-02-17 | 2019-05-31 | 杨晓伟 | High-speed rail tunnel icicle removes robot |
| CN110388338A (en) * | 2019-08-13 | 2019-10-29 | 中国船舶重工集团公司第七一九研究所 | Offshore platform novel energy-storing hydraulic system |
| CN111536084A (en) * | 2020-05-21 | 2020-08-14 | 哈尔滨广瀚新能动力有限公司 | Water inlet and outlet valve control device of hydraulic dynamometer |
| CN111536084B (en) * | 2020-05-21 | 2024-04-26 | 哈尔滨广瀚新能动力有限公司 | Water inlet and outlet valve control device of hydraulic dynamometer |
| CN113096980A (en) * | 2021-03-31 | 2021-07-09 | 西安交通大学 | Quick reversing device and method for on-load tap-changer based on hydraulic transmission |
| CN113096980B (en) * | 2021-03-31 | 2022-05-20 | 西安交通大学 | Quick reversing device and method for on-load tap-changer based on hydraulic transmission |
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