CN204921539U - Two -way hydraulic motor's test loop system - Google Patents
Two -way hydraulic motor's test loop system Download PDFInfo
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- CN204921539U CN204921539U CN201520599372.0U CN201520599372U CN204921539U CN 204921539 U CN204921539 U CN 204921539U CN 201520599372 U CN201520599372 U CN 201520599372U CN 204921539 U CN204921539 U CN 204921539U
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Abstract
The utility model discloses a two -way hydraulic motor's test loop system, the working circuit of load pump is closed loop, uses the export fluid that is tried the motor as load pump benefit oil, has cancelled the feed circuit of load pump, and prime mover (1b) drives hydraulic pump (2b) and limits the business turn over hydraulic fluid port change motor rotating orientation of hydraulic pump (2b) outlet pressure, switching -over valve (3b) switching motor through the valve (3b) that commutates to quilt examination motor (4b) fuel feeding, relief valve (5b), by examination motor (4b) transmission shaft drive loading pump (6b) transmission shaft, loading pump (6b) export fluid is through rectifying valve piece (7b) flow direction charge valve (8b), the outlet pressure of loading pump (6b) is adjusted to charge valve (8b), adjusts promptly by the output torque of examination motor (4b), for quilt examination motor loading, by the examination motor (4b) the export fluid flow through the switching -over valve (3b) the intercommunication rectifying valve piece (7b) the oil inlet to with charge valve (8b) export oil intercommunication. The utility model discloses a motor testboard, component still less, the overall arrangement is simpler, equipment area is littleer, the cost is showing and is reducing.
Description
Technical field
The utility model belongs to technical field of hydraulic pressure, relates to a kind of test loop system of two-way hydraulic motor particularly.
Background technique
The test loop of existing two-way hydraulic motor as shown in Figure 1, prime mover A1a Host actuating pump 2a through selector valve 3a to tested motor 4a fuel feeding, safety valve A11a is for limiting main pump 2a outlet pressure, and selector valve 3a is used for the oil inlet and outlet of switching motor, changes the sense of rotation of motor.
Tested motor 4a transmission shaft drive load pump 5a transmission shaft, load pump 5a exports fluid and flows to charge valve 7a through rectifying valve 6a.Charge valve 7a for regulating the outlet pressure of load pump 5a, thus regulates the output torque of tested motor 4a, to be reached for the object that tested motor loads.
Prime mover B8a drives slippage pump 9a, by the low voltage side fuel feeding of rectifying valve 6a to load pump 5a.For ensureing that load pump 5a normally works, the output flow of slippage pump 9a should be greater than the inlet flow rate of load pump 5a, and the fluid had more for controlling slippage pump 9a outlet pressure, and is overflowed to fuel tank by safety valve B10a.
Prior art defect: load pump performance loop is open circuit, empty for preventing load pump from inhaling, need for load pump configures a set of feed circuit.In practical application, be adapt to the tested motor of different size, need the load pump being equipped with several specification, should ensure in design load pump that the output flow of slippage pump must be greater than maximum specification work in maximum speed under flow.
In the specific implementation, include motor, motor on off control device, huge discharge oil hydraulic pump, motor base, pump mounting flange, coupling, filter, safety valve, turnover oil pipe, oil suction switch, radiator (when not configuring separately radiator, major loop radiator needs to add large gauge) and hydraulic fluid port flange, pipe joint, pipe clamp, Sealing, screw etc. in feed circuit and coupling is installed.
Therefore, the feed circuit of configuration large discharge not only directly causes the rising of manufacture cost, and it is larger to there is occupation area of equipment, and pipe-line layout is more complicated, incipient fault point increase etc. series of problems.
Summary of the invention
The purpose of this utility model is the test loop system providing a kind of two-way hydraulic motor for the deficiencies in the prior art, this system simplifies motor test rig, cancel the oil-supplementing system of load pump, reduce manufacture cost, reduce to take up an area space, simultaneously because decreasing multiple element, naturally also just decrease incipient fault point.
The purpose of this utility model and solve its technical problem underlying and realize by the following technical solutions: a kind of test loop system of two-way hydraulic motor, the performance loop of load pump is closed circuit, be load pump repairing with the outlet fluid of tested motor, eliminate the feed circuit of load pump, prime mover 1b Host actuating pump 2b through selector valve 3b to tested motor 4b fuel feeding, safety valve 5b limits main pump 2b outlet pressure, and the oil inlet and outlet of selector valve 3b switching motor changes motor sense of rotation; Tested motor 4b transmission shaft drive load pump 6b transmission shaft, load pump 6b exports fluid and flows to charge valve 8b through rectifying valve 7b; Charge valve 8b regulates the outlet pressure of load pump 6b, namely regulates the output torque of tested motor 4b, for tested motor loads; After tested motor 4b outlet fluid flows through selector valve 3b, be communicated with the filler opening of rectifying valve 7b, and export oily connection with charge valve 8b.
As preferably, back pressure valve 9b is set in charge valve 8b outlet.Under back pressure valve 9b effect, tested motor 4b exports oil and charge valve 8b exports oil, and the preferential oil suction demand ensureing load pump 6b of meeting before flowing back to fuel tank, unnecessary fluid flows back to fuel tank through back pressure valve 9b.The performance loop of load pump 6b is closed circuit, and tested motor 4b plays the effect of slippage pump.
As preferably, when arranging pipeline, when tested motor 4b outlet fluid flows to fuel tank, first flowing through the connectivity points A with rectifying valve block 7b inlet port, then flowing through the connectivity points B exporting oil with charge valve 8b.Its objective is that the fluid preferential flow of tested motor outlet is to load pump inlet port, and from the outlet oil of charge valve only for supplying not enough part, the too high and hydraulic performance decline of load pump can be avoided like this to import and export temperature that the long-time iterative cycles of fluid causes.Its effect is substantially identical with the flushing valve in common closed circuit.
Optionally, back pressure valve 9b also can cancel.Runner pipe resistance between tie point B to rectifying valve much smaller than tie point B to fuel tank between runner pipe resistance time (comparing under equal flow), even if cancel back pressure valve, also can ensure that load pump import can not occur to inhale empty.
The utility model compared with prior art has obvious advantage and beneficial effect.From above technological scheme, the performance loop of the utility model load pump is closed circuit, be load pump repairing with the outlet fluid of tested motor, eliminate the feed circuit of load pump, closed circuit lets out a small amount of fluid of generation in only need supplementing, even if so tested motor displacement and load pump discharge capacity differ greatly, the suction of load pump also can not be caused empty.This system simplifies motor test rig, cancels the oil-supplementing system of load pump, reduces manufacture cost, reducing to take up an area space, simultaneously because decreasing multiple element, naturally also just decreasing incipient fault point.
Accompanying drawing explanation
Fig. 1 is prior art schematic diagram,
Fig. 2 is the utility model structural representation.
Mark in figure: 1a, prime mover A, 2a, main pump, 3a, selector valve, 4a, tested motor, 5a, load pump, 6a, rectifying valve, 7a, charge valve, 8a, prime mover B, 9a, slippage pump, 10a, safety valve B, 11a, safety valve A;
1b, prime mover, 2b, main pump, 3b, selector valve, 4b, tested motor, 5b, safety valve, 6b, load pump, 7b, rectifying valve, 8b, charge valve, 9b, back pressure valve.
A point: with the connectivity points of rectifying valve 7b inlet port;
B point: export the connectivity points of oil with charge valve 8b.
Embodiment
Below in conjunction with accompanying drawing and preferred embodiment, to the test loop system according to a kind of two-way hydraulic motor that the utility model proposes, embodiment, feature and effect thereof, be described in detail as follows.
See Fig. 2, a kind of test loop system of two-way hydraulic motor, the performance loop of load pump is closed circuit, be load pump repairing with the outlet fluid of tested motor, eliminate the feed circuit of load pump, prime mover 1b Host actuating pump 2b is through selector valve 3b to tested motor 4b fuel feeding, and safety valve 5b is for limiting main pump 2b outlet pressure, selector valve 3b is used for the oil inlet and outlet of switching motor, thus changes the sense of rotation of motor.
Tested motor 4b transmission shaft drive load pump 6b transmission shaft, load pump 6b exports fluid and flows to charge valve 8b through rectifying valve 7b.Charge valve 8b for regulating the outlet pressure of load pump 6b, thus regulates the output torque of tested motor 4b, to be reached for the object that tested motor loads.
After tested motor 4b outlet fluid flows through selector valve 3b, be communicated with the filler opening of rectifying valve block 7b, and export oily connection with charge valve 8b.
As preferably, back pressure valve 9b is set in charge valve 8b outlet.Under back pressure valve 9b effect, tested motor 4b exports oil and charge valve 8b exports oil, and the preferential oil suction demand ensureing load pump 6b of meeting before flowing back to fuel tank, unnecessary fluid flows back to fuel tank through back pressure valve 9b.The performance loop of load pump 6b is closed circuit, and tested motor 4b plays the effect of slippage pump.
As preferably, when arranging pipeline, when tested motor outlet fluid flows to fuel tank, first should flow through the connectivity points A with rectifying valve block inlet port, then flow through the connectivity points B exporting oil with charge valve.Its objective is that the fluid of tested motor outlet is preferably load pump fuel feeding, and from the outlet oil of charge valve only for supplying not enough part, the too high and hydraulic performance decline of load pump can be avoided like this to import and export temperature that the long-time iterative cycles of fluid causes.Its effect is substantially identical with the flushing valve in common closed circuit.
Back pressure valve also can be cancelled.Runner pipe resistance between tie point B to rectifying valve block much smaller than tie point B to fuel tank between runner pipe resistance time (comparing under equal flow), even if cancel back pressure valve, also can ensure that load pump import can not occur to inhale empty.
Motor detecting platform of the present utility model, element is less, and layout is simpler, and occupation area of equipment is less, and cost significantly reduces.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, anyly do not depart from technical solutions of the utility model content, the any simple modification done above embodiment according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (3)
1. the test loop system of a two-way hydraulic motor, the performance loop of load pump is closed circuit, be load pump repairing with the outlet fluid of tested motor, eliminate the feed circuit of load pump, it is characterized in that: tested motor (4b) transmission shaft drive load pump (6b) transmission shaft, load pump (6b) outlet oil flows to charge valve (8b) through rectifying valve (7b), and tested motor (4b) exports the filler opening that fluid flows to rectifying valve (7b), and exports oily connection with charge valve (8b).
2. the test loop system of a kind of two-way hydraulic motor as claimed in claim 1, is characterized in that: arrange back pressure valve (9b) in charge valve (8b) outlet.
3. the test loop system of a kind of two-way hydraulic motor as claimed in claim 1 or 2, it is characterized in that: when arranging pipeline, tested motor (4b) exports fluid when flowing to fuel tank, first flow through the connectivity points (A) with rectifying valve (7b) inlet port, then flow through the connectivity points (B) exporting oil with charge valve (8b).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520599372.0U CN204921539U (en) | 2015-08-11 | 2015-08-11 | Two -way hydraulic motor's test loop system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520599372.0U CN204921539U (en) | 2015-08-11 | 2015-08-11 | Two -way hydraulic motor's test loop system |
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| Publication Number | Publication Date |
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| CN204921539U true CN204921539U (en) | 2015-12-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520599372.0U Expired - Fee Related CN204921539U (en) | 2015-08-11 | 2015-08-11 | Two -way hydraulic motor's test loop system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151171A (en) * | 2016-07-04 | 2016-11-23 | 意宁液压股份有限公司 | A kind of hydraulic motor and hydraulic pump universal test hydraulic system |
| CN109060387A (en) * | 2018-10-30 | 2018-12-21 | 北京中车重工机械有限公司 | A kind of wheel steering system load simulation experimental rig |
| CN110246407A (en) * | 2019-05-10 | 2019-09-17 | 华中科技大学 | A kind of experimental provision of simulated seawater pressure energy operating equipment |
| CN112855666A (en) * | 2021-01-05 | 2021-05-28 | 中联重科股份有限公司 | Loading oil way and loading test oil way |
-
2015
- 2015-08-11 CN CN201520599372.0U patent/CN204921539U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106151171A (en) * | 2016-07-04 | 2016-11-23 | 意宁液压股份有限公司 | A kind of hydraulic motor and hydraulic pump universal test hydraulic system |
| CN106151171B (en) * | 2016-07-04 | 2017-12-22 | 意宁液压股份有限公司 | A kind of hydraulic motor and hydraulic pump universal test hydraulic system |
| CN109060387A (en) * | 2018-10-30 | 2018-12-21 | 北京中车重工机械有限公司 | A kind of wheel steering system load simulation experimental rig |
| CN110246407A (en) * | 2019-05-10 | 2019-09-17 | 华中科技大学 | A kind of experimental provision of simulated seawater pressure energy operating equipment |
| CN110246407B (en) * | 2019-05-10 | 2021-08-20 | 华中科技大学 | Experimental device for simulating seawater pressure energy operation equipment |
| CN112855666A (en) * | 2021-01-05 | 2021-05-28 | 中联重科股份有限公司 | Loading oil way and loading test oil way |
| CN112855666B (en) * | 2021-01-05 | 2022-03-29 | 中联重科股份有限公司 | Loading oil way and loading test oil way |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151230 |
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| CF01 | Termination of patent right due to non-payment of annual fee |