CN203130671U - Servo pump device on microcomputer control electro-hydraulic servo universal testing machine - Google Patents
Servo pump device on microcomputer control electro-hydraulic servo universal testing machine Download PDFInfo
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- CN203130671U CN203130671U CN 201320124811 CN201320124811U CN203130671U CN 203130671 U CN203130671 U CN 203130671U CN 201320124811 CN201320124811 CN 201320124811 CN 201320124811 U CN201320124811 U CN 201320124811U CN 203130671 U CN203130671 U CN 203130671U
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- valve block
- testing machine
- integrated valve
- universal testing
- hydraulic servo
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Abstract
A servo pump device on a microcomputer control electro-hydraulic servo universal testing machine comprises an oil tank, wherein an outlet of the oil tank is connected with an oil inlet of an axial plunger pump; a pump shaft of the axial plunger pump is connected with an output shaft of a servo motor through a coupler; an oil outlet of the axial plunger pump is connected with an oil inlet of a first integrated valve block; an oil outlet of the first integrated valve block is connected with an oil inlet of the oil tank; and the first integrated valve block is connected with a working oil cylinder. The servo motor is easy to control, so that the axial plunger pump can be controlled; and the hydraulic oil flow required by the work of the testing machine and the pressure of a hydraulic system can be totally controlled through the rotating speed of the servo motor. The servo pump device requires a wide range of the work environment and can adapt to changes of the temperature and the humidity in a large range; the work temperature ranges between 0 DEG C and 40 DEG C; the relative humidity is not more than 95%; and particularly in an environment where a large number of fine particles exist, the device requires a wide range of the hydraulic oil viscosity, so that the accuracy of the electro-hydraulic servo universal testing machine can be improved, and a national standard is met.
Description
Technical field
The utility model relates to a kind of oil circuit control gear, exactly is the servopump device on the microcomputer controlled electro-hydraulic servo universal testing machine.
Background technique
The microcomputer controlled electro-hydraulic servo universal testing machine is the testing apparatus of functions such as the Automatic Control of finishing process of the test, automatic measurement.In the hydraulic system of traditional electrical liquid servo universal tester, in finishing the rate of stressing control of electro-hydraulic servo universal testing machine, strain rate control, rate of displacement control, the control of flow and pressure size is that control by the electrohydraulic control openings of sizes realizes in the oil circuit, be that the electrohydraulic control opening is big, hydraulic fluid flow rate is big, and test power climbing speed is accelerated; The electrohydraulic control opening is little, and then hydraulic fluid flow rate is little, and test power climbing speed is slow.Because the electrohydraulic control adaptive capacity is poor, requires cleanliness of hydraulic oil degree height, and is little to hydraulic oil stickiness accommodation, temperature and humidity and air-borne dust amount must be in quantitative scopes in the environment of work, and the general work temperature is 15-30 ℃, relative moisture≤85%.When environment exceeded requiring of electrohydraulic control, the stress of electro-hydraulic servo universal testing machine, strain, displacement control accuracy reduced, and cause control accuracy can not satisfy NBS.More seriously, the fine particle thing reaches and easily causes electrohydraulic control stuck, causes testing machine work paralysis or out of hand.
The model utility content
For addressing the above problem, the purpose of this utility model provides the servopump device on a kind of microcomputer controlled electro-hydraulic servo universal testing machine.
The utility model for achieving the above object, be achieved through the following technical solutions: the servopump device on the microcomputer controlled electro-hydraulic servo universal testing machine, comprise fuel tank, the outlet of fuel tank connects the filler opening of axial piston pump, connect by coupling between the pump shaft of axial piston pump and the output shaft of actuating motor, the oil outlet of axial piston pump connects the filler opening of first integrated valve block, and the oil outlet of first integrated valve block connects the filler opening of fuel tank, and first integrated valve block is connected with operating cylinder.
For further realizing the purpose of this utility model, can also be by the following technical solutions: described first integrated valve block connects the filler opening of second integrated valve block, the oil outlet of second integrated valve block connects the filler opening of fuel tank, and second integrated valve block is connected with clamping cylinder.Described axial piston pump, actuating motor and coupling are installed in the housing, and the housing two ends arrange AD.The bottom of described housing arranges fixed base, slide rail, axial piston pump is fixed on the bottom of housing by fixed base, and actuating motor is installed on the sliding seat, and sliding seat and slide rail cooperate, clamping bolt is set on the sliding seat, and clamping bolt passes sliding seat and is connected with slide rail.Described case top arranges blower fan, and housing top arranges airduct, and airduct is connected with blower fan, and several intake grills are offered in the airduct bottom, and housing bottom is offered several through holes.On between pipeline between described axial piston pump and first integrated valve block and the fuel tank first solenoid directional control valve is set.Between described second integrated valve block and the fuel tank second solenoid directional control valve is set.On the pipeline between described axial piston pump and first integrated valve block pressure measuring instrument is set.On the pipeline between described axial piston pump and first integrated valve block one-way valve is set.
Advantage of the present utility model is: actuating motor be easy to control, thereby axial piston pump can control, the size of testing machine work requirements hydraulic fluid flow rate, the big I of hydraulic system pressure fully by control actuating motor the rotating speed size finish control.The utility model is wide in range to the working environment environmental requirement, can be applicable to the variation of temperature and humidity on a large scale, operating temperature is 0-40 ℃, relative moisture≤95%, the more environment of fine particle thing particularly, to the wide ranges that hydraulic oil viscosity requires, can improve the precision that realizes the electro-hydraulic servo universal testing machine, satisfy NBS.The utility model also has compactness simple for structure, advantage cheap for manufacturing cost and easy to use.
Description of drawings
Fig. 1 is fundamental diagram of the present utility model; Fig. 2 is the structural representation of housing 13 described in the utility model.
Reference character: 1 actuating motor, 2 axial piston pumps, 3 fuel tanks, 4 first solenoid directional control valves, 5 one-way valves, 6 pressure measuring instruments, 7 operating cylinders, 8 first integrated valve blocks, 9 second integrated valve blocks, 10 clamping cylinders, 11 second solenoid directional control valves, 12 coupling, 13 housings, 14 ADs, 15 blower fans, 16 airducts, 17 intake grills, 18 sliding seats, 19 clamping bolts, 20 slide rails, 21 through holes, 22 fixed bases.
Embodiment
Servopump device on the microcomputer controlled electro-hydraulic servo universal testing machine, as shown in the figure, comprise fuel tank 3, the outlet of fuel tank 3 connects the filler opening of axial piston pump 2, connect by coupling 12 between the output shaft of the pump shaft of axial piston pump 2 and actuating motor 1, the oil outlet of axial piston pump 2 connects the filler opening of first integrated valve block 8, and the oil outlet of first integrated valve block 8 connects the filler opening of fuel tank 3, and first integrated valve block 8 is connected with operating cylinder 7.Actuating motor be easy to control, thereby axial piston pump can control, the size of testing machine work requirements hydraulic fluid flow rate, the big I of hydraulic system pressure fully by control actuating motor the rotating speed size finish control.On between pipeline between described axial piston pump 2 and first integrated valve block 8 and the fuel tank 3 first solenoid directional control valve 4 is set, 4 imports of first selector valve are between first integrated valve block 8 and axial piston pump 2, the outlet of first selector valve 4 is connected with fuel tank 3, first selector valve 4 be equivalent to axial piston pump 2 between in parallel, this structure can further improve the controlled of fuel feeding, oil return in time when fuel delivery is excessive improves the accuracy of test.In order to guarantee that pressure in the utility model in safety range, arranges pressure measuring instrument 6 on the pipeline between described axial piston pump 2 and first integrated valve block 8, meter 6 can in time obtain the pressure in this device, guarantees the safety of production process.On the pipeline between described axial piston pump 2 and first integrated valve block 8 one-way valve 5 is set, one-way valve 5 stops the hydraulic oil that enters in first integrated valve block 8 to be back in the axial piston pump 2, thereby ensures the use safety of axial piston pump 2.Actuating motor be easy to control, thereby axial piston pump can control, the size of testing machine work requirements hydraulic fluid flow rate, the big I of hydraulic system pressure fully by control actuating motor the rotating speed size finish control.The utility model is wide in range to the working environment environmental requirement, can be applicable to the variation of temperature and humidity on a large scale, operating temperature is 0-40 ℃, relative moisture≤95%, the more environment of fine particle thing particularly, to the wide ranges that hydraulic oil viscosity requires, can improve the precision that realizes the electro-hydraulic servo universal testing machine, satisfy NBS.
The microcomputer controlled electro-hydraulic servo universal testing machine also has clamping cylinder, in order further to satisfy the work requirements of clamping cylinder, described first integrated valve block 8 connects the filler opening of second integrated valve block 9, the oil outlet of second integrated valve block 9 connects the filler opening of fuel tank 3, and second integrated valve block 9 is connected with clamping cylinder 10.For the ease of the oil return performance of second integrated valve block 9 is controlled, between described second integrated valve block 9 and the fuel tank 3 second solenoid directional control valve 11 is set.
As shown in Figure 1, hydraulic oil in the fuel tank 3 enters first integrated valve block 8 through axial piston pump 2, commutation by first integrated valve block 8 enters operating cylinder 7, finishes the variation of fluid flow by the rotating speed of regulating actuating motor 1 and finishes the control that operating cylinder 7 is loaded.Hydraulic oil can also enter second integrated valve block, finishes the control to clamping cylinder 10.When integrated change valve when meta is worked, open unloading valve, finish off-load like this.
Actuating motor 1 changes soon, and then axial piston pump 2 changes soon, and fuel delivery is big, and the test power rate of climb is accelerated; Actuating motor 1 slow-speed, then axial piston pump 2 slow-speeds, fuel delivery is little, and the test power rate of climb slows down.Finished the rate of stressing control of electro-hydraulic servo universal testing machine, rate of displacement system, GB/T1063-electro-hydraulic servo universal testing machine NBS is satisfied in strain rate control fully.
In order further to improve dustproof effect of the present utility model, as shown in Figure 2, described axial piston pump 2, actuating motor 1 and coupling 12 are installed in the housing 13, and housing 13 two ends arrange AD 14, and AD 14 can conveniently keep in repair equipment.For convenience of installation and the maintenance to actuating motor 1, the bottom of described housing 13 arranges fixed base 22, slide rail 20, axial piston pump 2 is fixed on the bottom of housing 13 by fixed base 22, actuating motor 1 is installed on the sliding seat 18, sliding seat 18 and slide rail 20 cooperate, clamping bolt 19 is set on the sliding seat 18, and clamping bolt 19 passes sliding seat 18 and is connected with slide rail 20.During installation, actuating motor 1 is fixed on the sliding seat 18, pushes in the housing 13 along track, actuating motor 1 is connected with coupling 12, by clamping bolt 19 sliding seat 18 and slide rail 20 relative positions are fixed, anti-sliding stop; During maintenance, clamping bolt 19 is unclamped, disconnect actuating motor 1 and coupling 12, along slide rail 20 sliding seat and actuating motor 1 are extracted out.Ventilate and thermal diffusivity in order to improve, described housing 13 tops arrange blower fan 15, and housing 13 tops arrange airduct 16, and airduct 16 is connected with blower fan 15, and several intake grills 17 are offered in airduct 16 bottoms, and several through holes 21 are offered in housing 13 bottoms.After blower fan 15 started, housing 13 internal pressures reduced, and air enters in the housing 13 along through hole 21, and each equipment is lowered the temperature, and guarantees the Security of each equipment.
The technical solution of the utility model is not restricted in the embodiment's described in the utility model scope.The utility model not technology contents of detailed description is known technology.
Claims (9)
1. the servopump device on the microcomputer controlled electro-hydraulic servo universal testing machine, it is characterized in that: comprise fuel tank (3), the outlet of fuel tank (3) connects the filler opening of axial piston pump (2), connect by coupling (12) between the output shaft of the pump shaft of axial piston pump (2) and actuating motor (1), the oil outlet of axial piston pump (2) connects the filler opening of first integrated valve block (8), the oil outlet of first integrated valve block (8) connects the filler opening of fuel tank (3), and first integrated valve block (8) is connected with operating cylinder (7).
2. the servopump device on the microcomputer controlled electro-hydraulic servo universal testing machine according to claim 1, it is characterized in that: described first integrated valve block (8) connects the filler opening of second integrated valve block (9), the oil outlet of second integrated valve block (9) connects the filler opening of fuel tank (3), and second integrated valve block (9) is connected with clamping cylinder (10).
3. the servopump device on the microcomputer controlled electro-hydraulic servo universal testing machine according to claim 1, it is characterized in that: described axial piston pump (2), actuating motor (1) and coupling (12) are installed in the housing (13), and housing (13) two ends arrange AD (14).
4. the servopump device on the microcomputer controlled electro-hydraulic servo universal testing machine according to claim 3, it is characterized in that: the bottom of described housing (13) arranges fixed base (22), slide rail (20), axial piston pump (2) is fixed on the bottom of housing (13) by fixed base (22), actuating motor (1) is installed on the sliding seat (18), sliding seat (18) and slide rail (20) cooperate, clamping bolt (19) is set on the sliding seat (18), and clamping bolt (19) passes sliding seat (18) and is connected with slide rail (20).
5. the servopump device on the microcomputer controlled electro-hydraulic servo universal testing machine according to claim 3, it is characterized in that: described housing (13) top arranges blower fan (15), housing (13) top arranges airduct (16), airduct (16) is connected with blower fan (15), several intake grills (17) are offered in airduct (16) bottom, and several through holes (21) are offered in housing (13) bottom.
6. the servopump device on the microcomputer controlled electro-hydraulic servo universal testing machine according to claim 1 is characterized in that: between the pipeline between described axial piston pump (2) and first integrated valve block (8) and the fuel tank (3) first solenoid directional control valve (4) is set.
7. the servopump device on the microcomputer controlled electro-hydraulic servo universal testing machine according to claim 2 is characterized in that: between described second integrated valve block (9) and the fuel tank (3) second solenoid directional control valve (11) is set.
8. the servopump device on the microcomputer controlled electro-hydraulic servo universal testing machine according to claim 1 is characterized in that: on the pipeline between described axial piston pump (2) and first integrated valve block (8) pressure measuring instrument (6) is set.
9. the servopump device on the microcomputer controlled electro-hydraulic servo universal testing machine according to claim 1 is characterized in that: on the pipeline between described axial piston pump (2) and first integrated valve block (8) one-way valve (5) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320124811 CN203130671U (en) | 2013-03-19 | 2013-03-19 | Servo pump device on microcomputer control electro-hydraulic servo universal testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320124811 CN203130671U (en) | 2013-03-19 | 2013-03-19 | Servo pump device on microcomputer control electro-hydraulic servo universal testing machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203130671U true CN203130671U (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320124811 Expired - Fee Related CN203130671U (en) | 2013-03-19 | 2013-03-19 | Servo pump device on microcomputer control electro-hydraulic servo universal testing machine |
Country Status (1)
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| CN (1) | CN203130671U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633740A (en) * | 2013-11-29 | 2014-03-12 | 国家电网公司 | Monitoring device for telecontrol channel fault |
| CN110987625A (en) * | 2019-12-20 | 2020-04-10 | 济南中路昌试验机制造有限公司 | Super-silent electro-hydraulic servo universal testing machine |
| CN112628220A (en) * | 2020-12-18 | 2021-04-09 | 济南新路昌试验机有限公司 | Servo oil source of pressure testing machine |
| CN113550942A (en) * | 2021-07-15 | 2021-10-26 | 南通睿基自动化技术有限公司 | Electrohydraulic control hydraulic vibration cylinder of servo pump |
-
2013
- 2013-03-19 CN CN 201320124811 patent/CN203130671U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103633740A (en) * | 2013-11-29 | 2014-03-12 | 国家电网公司 | Monitoring device for telecontrol channel fault |
| CN110987625A (en) * | 2019-12-20 | 2020-04-10 | 济南中路昌试验机制造有限公司 | Super-silent electro-hydraulic servo universal testing machine |
| CN112628220A (en) * | 2020-12-18 | 2021-04-09 | 济南新路昌试验机有限公司 | Servo oil source of pressure testing machine |
| CN113550942A (en) * | 2021-07-15 | 2021-10-26 | 南通睿基自动化技术有限公司 | Electrohydraulic control hydraulic vibration cylinder of servo pump |
| CN113550942B (en) * | 2021-07-15 | 2024-03-29 | 南通睿基自动化技术有限公司 | Electrohydraulic control hydraulic vibration cylinder of servo pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20130814 Termination date: 20180319 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |