CN2760316Y - Mobile hydraulic test bench with adjustable pressure and flow - Google Patents
Mobile hydraulic test bench with adjustable pressure and flow Download PDFInfo
- Publication number
- CN2760316Y CN2760316Y CN 200420115806 CN200420115806U CN2760316Y CN 2760316 Y CN2760316 Y CN 2760316Y CN 200420115806 CN200420115806 CN 200420115806 CN 200420115806 U CN200420115806 U CN 200420115806U CN 2760316 Y CN2760316 Y CN 2760316Y
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- China
- Prior art keywords
- hydraulic
- valve
- pressure
- test stand
- frequency variator
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Abstract
The utility model relates to a mobile hydraulic test bench with adjustable pressure and flowrate, which comprises a machine frame, a hydraulic device and a control device, wherein the hydraulic device and the control device which are respectively fixed on the machine frame are mutually connected; the hydraulic device is composed of a hydraulic oil tank, ball valve, a hydraulic oil pump, a three-phase asynchronous motor, a one-way valve, a reversing valve, an easing valve, a sequence valve and a radiator, and is connected by a hydraulic pipeline; the control device is composed of a frequency converter and an operating panel thereof, and the frequency converter is connected with the three-phase asynchronous motor; four universal travelling wheels are arranged at the bottom of the machine frame for the convenience of operation and movement. The utility model can achieve the stepless adjustment on the pressure and the flowrate of a system, can effectively reduce cost, can enhance the adaptability of a complete machine to working environment, and has the advantages of simple structure, strong practicability and reliable function. The test bench is suitable for indoor positioning manipulation, and suitable to be used for unfixed field occasions.
Description
Technical field
The utility model relates to a kind of mobile hydraulic test stand, and the mobile hydraulic test stand that especially a kind of pressure flow is all adjustable belongs to the variable regulation technology field of hydraulic pressure.
Background technique
In whole hydraulic system, the structure-function relationship of hydraulic power the comprehensive of the practicability of whole system and function, for hydraulic system provides a pressure, flow all adjustable hidrodynamic form test stand, can significantly reduce the experimentation cost of whole hydraulic system.
At present, general hydraulic test bench has two types, and a kind of is that pressure, flow are all non-adjustable, perhaps adjustable in pressure only, in order to reduce the experimentation cost of hydraulic system, above-mentioned hydraulic test bench can not meet the demands, can not reach the purpose that makes full use of of test stand; A kind of is all adjustable hydraulic test bench of pressure, flow, the adjusting of its pressure is to make up by relief valve to realize, the adjusting of flow then is to realize by deciding the form that rotating speed combines with variable displacement pump, because the hydraulic system multi-function test stand is often than working under the rugged environment, as: workshop, farm etc., and variable displacement pump adopts variable vane pump or Variable plunger pump usually.Above-mentioned two types variable displacement pump is responsive to oil contamination, is unsuitable for working under rugged environment; And its price is higher, can not effectively reduce experimentation cost.In addition, existing hydraulic test bench is fixed on somewhere and can not arbitrarily moves.Brought certain limitation and restriction for use to this device.
The model utility content
The purpose of this utility model is at the deficiencies in the prior art, provides a kind of pressure flow all adjustable mobile hydraulic test stand, adopts frequency variator to change the frequency of okperation of motor, with the rotating speed of change hydraulic-pressure pump, and then reaches the purpose that changes flow system flow; By relief valve system works pressure is controlled, realized that pressure, flow effectively change, can realize the stepless adjustment of system pressure and flow, effectively reduce cost, strengthened the adaptability of complete machine working environment.
Another purpose of the present utility model is at the deficiencies in the prior art, provide a kind of pressure flow all adjustable mobile hydraulic test stand, below the stand of test stand, universal travel wheel is set, move it conveniently, simple in structure, practical, reliable in function, this test stand not only is fit to indoor positioning to be handled, and also is applicable to open-air on-fixed occasion use.
The purpose of this utility model is achieved by the following technical solution:
The mobile hydraulic test stand that a kind of pressure flow is all adjustable, it comprises frame, hydraulic pressure installation and control gear, and hydraulic pressure installation and control gear are separately fixed on the frame, and control gear links to each other with hydraulic pressure installation.
Hydraulic pressure installation is made up of hydraulic oil container, ball valve, hydraulic-pressure pump, threephase asynchronous machine, one-way valve, selector valve, relief valve, sequence valve and radiator, and it is continuous by hydraulic pipe line, threephase asynchronous machine links to each other with hydraulic-pressure pump, the output pipe of hydraulic oil container links to each other with hydraulic-pressure pump by ball valve, in turn by one-way valve, selector valve and sequence valve, through radiator and return line, link to each other with hydraulic oil container; Be connected with relief valve between the inlet of one-way valve and the outlet of selector valve.
Be provided with filter between ball valve and the hydraulic-pressure pump.
Control gear is made up of frequency variator and frequency variator operation panel, and frequency variator links to each other with threephase asynchronous machine.
Operation for convenience and mobile is provided with universal travel wheel below frame.
In sum, the utility model adopts frequency variator to change the frequency of okperation of motor, reaches the purpose that changes flow system flow; By relief valve system works pressure is controlled, realized that pressure, flow effectively change, effectively reduce cost, strengthened the adaptability of complete machine working environment; Simultaneously below the stand of test stand, universal travel wheel is set, moves it conveniently, simple in structure, practical.
Description of drawings
Fig. 1 is the utility model general structure schematic perspective view;
Fig. 2 is the utility model general structure schematic top plan view;
Fig. 3 is the perspective view of the utility model hydraulic pressure installation;
Fig. 4 is the perspective view of the utility model control gear;
Fig. 5 is a hydraulic schematic diagram of the present utility model;
Fig. 6 is circuit theory diagrams of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the technical solution of the utility model is described in detail.
As Fig. 1-Fig. 6 as can be known, the utility model is all adjustable mobile hydraulic test stand of a kind of pressure flow, the mobile hydraulic test stand that pressure flow is all adjustable, it mainly comprises frame 16, hydraulic pressure installation 18 and control gear 15, hydraulic pressure installation 18 and control gear 15 are separately fixed on the frame 16, and control gear 15 links to each other with hydraulic pressure installation 18.
Moving of test stand is provided with universal travel wheel 17 below frame 16 for convenience.
The hydraulic test bench of practical application satisfying on the basis of above-mentioned requirements, also is provided with other component, thereby realizes the integral body control to test stand, reaches optimum efficiency.Its concrete structure is as follows:
In conjunction with Fig. 1, Fig. 2 and shown in Figure 5, test stand is made up of hydraulic oil container 1, ball valve 2, in-line filter 3, hydraulic-pressure pump 4, coupling 5, threephase asynchronous machine 6, charge oil pressure table 9, one way sequence valve 11, return pressure table 12, radiator 13, control gear 15, frame 16, universal travel wheel 17, hydraulic pressure installation 18 etc.As shown in Figure 4, wherein, control gear 15 is made up of control knob 21, frequency regulator 22, tutorial light 23, non-fuse breaker 24, frequency variator 25, frequency variator operation panel 26, flowmeter 14 and frame 16 etc.; As shown in Figure 3, hydraulic pressure installation 18 is made up of one-way valve 7, solenoid directional control valve 8, relief valve 10, integrated package 19, interface 20 etc.6 of hydraulic-pressure pump 4 and threephase asynchronous machines are connected by coupling 5, for test stand provides power, and are controlled by frequency variator 25, frequency regulator 22, frequency variator operation panel 26, realize the Flow-rate adjustment of system, flowmeter 14 display system piping flows; Relief valve 10, one way sequence valve 11 are realized the confession of system, the adjusting of oil circuit pressure, charge oil pressure table 9 display system charge oil pressure; Solenoid directional control valve 8 is realized the bidirectional operation of system oil-way, and radiator 13 is realized the system radiating function, and is controlled by control knob 21 respectively, and its operating mode is shown by tutorial light 23 respectively; Frame 16, universal travel wheel 17 have been realized the walking function of this hydraulic test bench.Simultaneously, interface 20 for this reason test stand outside oil circuit interface is provided. Operation panel 26 and 22 pairs of flow system flows of frequency regulator by frequency variator 25 are controlled, and are shown by flowmeter 14.Control by 10 pairs of system's charge oil pressures of relief valve, and show by charge oil pressure table 9.Protect by 11 pairs of radiators 13 of one way sequence valve and flowmeter 14, and show by return pressure table 12.17 pairs of hydraulic test bench of universal travel wheel by the band self-locking mechanism move and locate.Realize the control of test stand oil circuit Way outs by solenoid directional control valve 8, and show by tutorial light 23-4,23-5.
As shown in Figure 1,4 universal travel wheels 17 are connected with frame, and each universal travel wheel 17 all has auto-lock function, when this test stand will be mobile, only need the self-locking mechanism of universal travel wheel 17 is opened, just can realize the locomotive function of test stand, in the time will testing, self-locking mechanism is pinned the location of just having realized test stand.
As Fig. 5, shown in Figure 6,6 of hydraulic-pressure pump 4 and threephase asynchronous machines are connected by coupling 5, and for test stand provides hydraulic power, wherein threephase asynchronous machine 6 is permanent torque output, and its operating mode is controlled by frequency variator 25.The rotating speed of threephase asynchronous machine 6 is regulated by frequency regulator 22 and frequency variator operation panel 26 and is shown that the operating mode of frequency variator 25 is shown by the AD1 in the tutorial light 23.System works pressure is regulated by relief valve 10, and its numerical value shows that by charge oil pressure table 9 system oil return pressure is regulated by one way sequence valve 11, is shown by return pressure table 12, and radiator 13, flowmeter 14 are protected.When threephase asynchronous machine 6 is permanent torque output, and system pressure certain after, change incoming frequencies by frequency regulator 22, can change the rotating speed of threephase asynchronous machine 6, and then change flow system flow, its numerical value is shown by flowmeter 14.
In conjunction with Fig. 4, shown in Figure 6, hydraulic test bench is provided with the 380V power supply, protect by non-fuse breaker 24-1,24-2,21-1 often left by contactor MC, frequency variator 25 enable switches, rising of the normally closed 21-2 control of frequency variator 25 stop switches frequency variator 25 closed, by the start-stop of frequency variator operation panel 26 control threephase asynchronous machines 6; The operation of radiator 13 control switch 21-3 control radiator 13; The asphalt channel of solenoid directional control valve 8 control switch 21-4 control solenoid directional control valve 8, the oil circuit direction of the outer oil-collecting hole 20 of control test stand.Frequency variator 25 malfunction alarm tutorial light 23-1, frequency variator 25 work condition indication lamp 23-2 among Fig. 6, radiator 13 work condition indication lamp 23-3, solenoid directional control valve 8 left-hand passage tutorial light 23-4 and solenoid directional control valve 8 dextrad passage tutorial light 23-5, indicated under different operating modes the whole system operation situation respectively.
Need to prove at last: above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not breaking away from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (5)
1, all adjustable mobile hydraulic test stand of pressure flow, it is characterized in that: it comprises frame, hydraulic pressure installation and control gear, and hydraulic pressure installation and control gear are separately fixed on the frame, and control gear links to each other with hydraulic pressure installation.
2, all adjustable mobile hydraulic test stand of pressure flow according to claim 1, it is characterized in that: described hydraulic pressure installation is made up of hydraulic oil container, ball valve, hydraulic-pressure pump, threephase asynchronous machine, one-way valve, selector valve, relief valve, sequence valve and radiator, and it is continuous by hydraulic pipe line, threephase asynchronous machine links to each other with hydraulic-pressure pump, the output pipe of hydraulic oil container links to each other with hydraulic-pressure pump by ball valve, in turn by one-way valve, selector valve and sequence valve, through radiator and return line, link to each other with hydraulic oil container; Be connected with relief valve between the inlet of one-way valve and the outlet of selector valve.
3, all adjustable mobile hydraulic test stand of pressure flow according to claim 2 is characterized in that: be provided with filter between described ball valve and the hydraulic-pressure pump.
4, all adjustable mobile hydraulic test stand of pressure flow according to claim 1 and 2, it is characterized in that: described control gear is made up of frequency variator and frequency variator operation panel, the frequency conversion operation panel links to each other with frequency variator, which is provided with the button that is used to regulate frequency variator, frequency variator links to each other with threephase asynchronous machine.
5, all adjustable mobile hydraulic test stand of pressure flow according to claim 1 is characterized in that: described frame below is provided with universal travel wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115806 CN2760316Y (en) | 2004-11-26 | 2004-11-26 | Mobile hydraulic test bench with adjustable pressure and flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420115806 CN2760316Y (en) | 2004-11-26 | 2004-11-26 | Mobile hydraulic test bench with adjustable pressure and flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2760316Y true CN2760316Y (en) | 2006-02-22 |
Family
ID=36082517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420115806 Expired - Fee Related CN2760316Y (en) | 2004-11-26 | 2004-11-26 | Mobile hydraulic test bench with adjustable pressure and flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2760316Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102052365A (en) * | 2010-12-07 | 2011-05-11 | 三一重机有限公司 | Test bench for hydraulic excavator pump valve |
| CN101598159B (en) * | 2009-06-19 | 2011-06-15 | 杨成刚 | Portable active hydraulic tester and test method |
| CN104633411A (en) * | 2015-02-16 | 2015-05-20 | 陈子江 | IVF (in-vitro fertilization) laboratory instrument trolley |
| CN104791331A (en) * | 2015-04-23 | 2015-07-22 | 阜新德尔汽车部件股份有限公司 | Performance test platform for electrohydraulic pump |
-
2004
- 2004-11-26 CN CN 200420115806 patent/CN2760316Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101598159B (en) * | 2009-06-19 | 2011-06-15 | 杨成刚 | Portable active hydraulic tester and test method |
| CN102052365A (en) * | 2010-12-07 | 2011-05-11 | 三一重机有限公司 | Test bench for hydraulic excavator pump valve |
| CN104633411A (en) * | 2015-02-16 | 2015-05-20 | 陈子江 | IVF (in-vitro fertilization) laboratory instrument trolley |
| CN104791331A (en) * | 2015-04-23 | 2015-07-22 | 阜新德尔汽车部件股份有限公司 | Performance test platform for electrohydraulic pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |