CN201943706U - Stratum-simulated hydraulic multi-mode loading device for shield propulsion system test - Google Patents
Stratum-simulated hydraulic multi-mode loading device for shield propulsion system test Download PDFInfo
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- CN201943706U CN201943706U CN2010206889331U CN201020688933U CN201943706U CN 201943706 U CN201943706 U CN 201943706U CN 2010206889331 U CN2010206889331 U CN 2010206889331U CN 201020688933 U CN201020688933 U CN 201020688933U CN 201943706 U CN201943706 U CN 201943706U
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Abstract
The utility model discloses a stratum-simulated hydraulic multi-mode loading device for a shield propulsion system test, comprising a hydraulic propulsion system formed by a propulsion hydraulic cylinder, a speed loaded module, a pressure loaded module and a proportion throttle loaded module, wherein a port of the hydraulic propulsion system is connected with a rodless cavity of the propulsion hydraulic cylinder, and another port of the hydraulic propulsion system is connected with a rod cavity of the propulsion hydraulic cylinder; the speed loaded module is used under a pressure-regulated propulsion mode; the pressure loaded module is adopted under a speed-regulated propulsion mode; and the proportion throttle loaded module can be adopted under both the pressure-regulated propulsion mode and the speed-regulated propulsion mode; the three modules are connected with a rodless cavity of a loading hydraulic cylinder; a rod cavity of the loading hydraulic cylinder is connected with an oil tank; and the loading hydraulic cylinder and the propulsion hydraulic cylinder realize loading through opposite-vertex connection. For the stratum-simulated hydraulic multi-mode loading device, a valve control technology is adopted for realizing load regulation, so that a load system is characterized by having higher frequency response; by adopting a cartridge valve technology, the system is applicable to working conditions with large flow so as to realize reliable sealing; and by adding or reducing hydraulic load units with different functions, the multi-mode loading can be realized conveniently.
Description
Technical field
The utility model relates to a kind of stratum simulation hydraulic pressure multi-mode charger, especially relates to a kind of stratum simulation hydraulic pressure multi-mode charger that is used for the shield propelling system test.
Background technology
Loading system is widely used in various occasions, as the soil body loading of soil mechanics experiment, the stretching-compression-loaded of metal material performance, loading of bearing life test or the like.Loading method has the loading of mechanical type, as treat the loading system applied thrust by mechanical transmission mechanism; The loading of electrical form is arranged, as realize the loading of angular metric control by servomotor; The loading of fluid transmission situation is arranged,, test macro is applied constant force by hydraulic cylinder as providing moment of torsion by hydraulic motor.
Because it is big that hydraulic drive has power density, promptly power-volume ratio is big, and loading system requires power output enough to load with realization greatly, so hydraulic technique has very big advantage on loading system.More steady in the time of hydraulic transmission work, there is not the enormous impact of machine driven system; Simultaneously owing to have hydraulic pressure overload protective, avoided the overload in the Electric Drive and the problem of burning motor.Hydraulic drive can realize large-scale stepless speed regulation, and machine driving has level often, though Electric Drive can realize stepless speed regulation by variable frequency control, relatively poor in the occasion adjusting stationarity of big speed ratio, so hydraulic drive has very big advantage on speed adjustable range.Hydraulic drive can realize rectilinear motion easily by hydraulic cylinder, and uses machine driving to realize more complicated, and Electric Drive realizes that rectilinear motion can use linear electric motors, but the loading of power can not be provided.
Traditional hydraulic loading system, function ratio is more single usually.Testing counter as hydraulicchange-over valve is the simulation that realizes load by choke valve, and the hydraulic pressure bracket loading test platform then is the loading by the overflow valve realizable force.The stratum simulation hydraulic pressure multi-mode loading system that is used for the shield propelling system test that the utility model proposed is to have the function that applies multiple load of different nature, and versatility is better, can satisfy the requirement of various application occasions.Two kinds of driving patterns (pressure regulation advances pattern and speed governing to advance pattern) at shield driving, can select the fictitious load of following three kinds of character to load: the speed load of using under the pressure regulation propelling pattern by proportional velocity regulating valve control loaded hydraulic cylinder rodless cavity hydraulic fluid port flow, the pressure load that uses under the speed governing propelling pattern by ratio press over system control loaded hydraulic cylinder rodless cavity pressure, more than the throttling load of all spendable restriction characteristic by proportional throttle valve control loaded hydraulic cylinder rodless cavity hydraulic fluid port under two kinds of patterns.
Summary of the invention
The purpose of this utility model is to provide a kind of stratum simulation hydraulic pressure multi-mode charger that is used for the shield propelling system test.By selecting three kinds of fictitious loads of different nature to load, replace actual driving geology soil layer according to existing practice of construction data with fictitious load, conveniently the pressure regulation in laboratory simulation shield driving process advances pattern and speed governing to advance pattern, novel shield structure hydraulic propelling system is tested, for the design of shield structure provides foundation and test conditions.
In order to achieve the above object, the technical solution adopted in the utility model is:
The utility model comprises the hydraulic propelling system of being made up of the PF cylinder pressure, and a hydraulic fluid port of hydraulic propelling system is connected with PF cylinder pressure rodless cavity, and another hydraulic fluid port of hydraulic propelling system is connected with PF cylinder pressure rod chamber; It is characterized in that: also comprise three cartridge valves, three liquid resistances, three two-bit triplet solenoid operated directional valves, three shuttle valves, six pressure tap, two proportional pressure control valves, proportional flow control valve, proportional throttle valve, hydraulic pump, motor and loading hydraulic cylinders; The oil-in of first proportional pressure control valve is connected with the oil-in of the oil-out of recharging oil device and one way valve, the oil-out of first proportional pressure control valve all is connected with fuel tank with the rod chamber of loading hydraulic cylinder, the oil-out of one way valve respectively with the rodless cavity of loading hydraulic cylinder, the hydraulic fluid port a1 of first cartridge valve, first shuttle valve oil-in c2, second pressure tap, the hydraulic fluid port a2 of second cartridge valve, second shuttle valve oil-in c4, the a3 hydraulic fluid port of the 3rd cartridge valve of the 4th pressure tap, the 3rd shuttle valve oil-in c6, the 6th pressure tap connects; The hydraulic fluid port b1 mouth of first cartridge valve and the oil-in of first pressure tap, the hydraulic fluid port c1 of first shuttle valve, the oil-in of proportional pressure control valve connects, the hydraulic fluid port b2 of second cartridge valve and pressure tap oil-in, shuttle valve hydraulic fluid port c3, the oil-in of proportional flow control valve connects, the hydraulic fluid port b3 of the 3rd cartridge valve and pressure tap oil-in, shuttle valve hydraulic fluid port c5, the oil-in of proportional throttle valve connects, the oil-out of second proportional pressure control valve, the oil-out of proportional flow control valve, the oil-out of proportional throttle valve is connected with fuel tank, the spring cavity of first cartridge valve is connected with the hydraulic fluid port r1 of first liquid resistance, the hydraulic fluid port r2 of first liquid resistance is connected with the hydraulic fluid port p1 of first two-bit triplet solenoid operated directional valve, the hydraulic fluid port p2 of first two-bit triplet solenoid operated directional valve is connected with the oil-out of first shuttle valve, and the hydraulic fluid port T1 of first two-bit triplet solenoid operated directional valve is connected with fuel tank; The spring cavity of second cartridge valve is connected with the hydraulic fluid port r3 of second liquid resistance 6.2, the hydraulic fluid port r4 of second liquid resistance is connected with the hydraulic fluid port p3 of second two-bit triplet solenoid operated directional valve, the hydraulic fluid port p4 of second two-bit triplet solenoid operated directional valve is connected with the oil-out of second shuttle valve, and the hydraulic fluid port T2 of second two-bit triplet solenoid operated directional valve is connected with fuel tank; The spring cavity of the 3rd cartridge valve is connected with the hydraulic fluid port r5 of the 3rd liquid resistance, the hydraulic fluid port r6 of the 3rd liquid resistance is connected with the hydraulic fluid port p5 of the 3rd two-bit triplet solenoid operated directional valve, the hydraulic fluid port p6 of the 3rd two-bit triplet solenoid operated directional valve is connected with the oil-out of the 3rd shuttle valve, and the hydraulic fluid port T3 of the 3rd two-bit triplet solenoid operated directional valve is connected with fuel tank; Loading hydraulic cylinder adopts with the PF cylinder pressure top is connected the realization loading.
The beneficial effect that the utlity model has is:
Owing to adopt the valve control techniques to realize load regulation, thereby load system has higher frequency response characteristic; Adopt the integrated designing technique of hydraulic pressure, improve the versatility of system; Adopt the cartridge valve technology, can make system be applicable to big flow operating mode, and can realize positiver sealing; Can add or reduce hydraulic loaded unit, be convenient to realize that multi-mode loads with difference in functionality; Whole bus type hydraulic manifold block is provided with a plurality of pressure tap, can make things convenient for cut-in pressure table or pressure sensor etc.
Description of drawings
Accompanying drawing 1 is the utility model hydraulic schematic diagram.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in drawings, comprise the hydraulic propelling system of being made up of PF cylinder pressure 14, a hydraulic fluid port B4 of hydraulic propelling system is connected with PF cylinder pressure 14 rodless cavities, and another hydraulic fluid port A4 of hydraulic propelling system is connected with PF cylinder pressure 14 rod chambers.Also comprise three cartridge valves 5.1,5.2,5.3,6.1,6.2,6.3, three two-bit triplet solenoid operated directional valves 7.1 of three liquid resistance, 7.2,7.3, three shuttle valves 11.1,11.2,11.3, six pressure tap 12.1 ~ 12.6, two proportional pressure control valves 3,8, proportional flow control valve 9, proportional throttle valve 10, hydraulic pump 2, motor 1 and loading hydraulic cylinders 13; The oil-in of first proportional pressure control valve 3 is connected with the oil-in of the oil-out of recharging oil device with one way valve 4, the rod chamber of the oil-out of first proportional pressure control valve 3 and loading hydraulic cylinder 13 all is connected with fuel tank 15, the oil-out of one way valve 4 respectively with the rodless cavity of loading hydraulic cylinder 13, the hydraulic fluid port a1 of first cartridge valve 5.1, first shuttle valve oil-in c2, second pressure tap 12.2, the hydraulic fluid port a2 of second cartridge valve 5.2, second shuttle valve oil-in c4, the a3 hydraulic fluid port of the 3rd cartridge valve 5.3 of the 4th pressure tap 12.4, the 3rd shuttle valve oil-in c6, the 6th pressure tap 12.6 connects; The hydraulic fluid port b1 mouth of first cartridge valve 5.1 and the oil-in of first pressure tap 12.1, the hydraulic fluid port c1 of first shuttle valve 11.1, the oil-in of proportional pressure control valve 8 connects, the hydraulic fluid port b2 of second cartridge valve 5.2 and pressure tap 12.3 oil-ins, shuttle valve 11.2 hydraulic fluid port c3, the oil-in of proportional flow control valve 9 connects, the hydraulic fluid port b3 of the 3rd cartridge valve 5.3 and pressure tap 12.5 oil-ins, shuttle valve 11.3 hydraulic fluid port c5, the oil-in of proportional throttle valve 10 connects, the oil-out of second proportional pressure control valve 8, the oil-out of proportional flow control valve 9, the oil-out of proportional throttle valve 10 is connected with fuel tank 15, the spring cavity of first cartridge valve 5.1 is connected with the hydraulic fluid port r1 of first liquid resistance 6.1, the hydraulic fluid port r2 of first liquid resistance 6.1 is connected with the hydraulic fluid port p1 of first two-bit triplet solenoid operated directional valve 7.1, the hydraulic fluid port p2 of first two-bit triplet solenoid operated directional valve 7.1 is connected with the oil-out of first shuttle valve 11.1, and the hydraulic fluid port T1 of first two-bit triplet solenoid operated directional valve 7.1 is connected with fuel tank 15; The spring cavity of second cartridge valve 5.2 is connected with the hydraulic fluid port r3 of second liquid resistance 6.2, the hydraulic fluid port r4 of second liquid resistance 6.2 is connected with the hydraulic fluid port p3 of second two-bit triplet solenoid operated directional valve 7.2, the hydraulic fluid port p4 of second two-bit triplet solenoid operated directional valve 7.2 is connected with the oil-out of second shuttle valve 11.2, and the hydraulic fluid port T2 of second two-bit triplet solenoid operated directional valve 7.2 is connected with fuel tank 15; The spring cavity of the 3rd cartridge valve 5.3 is connected with the hydraulic fluid port r5 of the 3rd liquid resistance 6.3, the hydraulic fluid port r6 of the 3rd liquid resistance 6.3 is connected with the hydraulic fluid port p5 of the 3rd two-bit triplet solenoid operated directional valve 7.3, the hydraulic fluid port p6 of the 3rd two-bit triplet solenoid operated directional valve 7.3 is connected with the oil-out of the 3rd shuttle valve 11.3, and the hydraulic fluid port T3 of the 3rd two-bit triplet solenoid operated directional valve 7.3 is connected with fuel tank 15; Loading hydraulic cylinder 13 adopts with PF cylinder pressure 14 top is connected the realization loading.
First cartridge valve 5.1, first shuttle valve 11.1, first liquid resistance 6.1,7.1, the second proportional pressure control valves of first two-bit triplet solenoid operated directional valve 8 constitute the speed load blocks under the pressure regulation propelling pattern; Second cartridge valve 5.2, second shuttle valve 11.2, second liquid resistance 6.2, second two-bit triplet solenoid operated directional valve 7.2, proportional flow control valve 9 constitutes the pressure load under the speed governing propelling pattern, the 3rd cartridge valve 5.3, the 3rd shuttle valve 11.3,6.3, the three two-bit triplet solenoid operated directional valves 7.3 of the 3rd liquid resistance, proportional throttle valve 10 constitutes pressure regulation and advances all adoptable proportional throttle valve load blocks under pattern and the speed governing propelling pattern.
The utility model can be provided with different fictitious loads at two kinds of driving patterns (pressure regulation advances pattern and speed governing to advance pattern) of shield driving.
Speed load under the pressure regulation propelling pattern: in the shield driving process, if run into the occasion that earth pressure balance control is had relatively high expectations, need carry out pressure to the PF cylinder pressure and regulate, i.e. pressure regulation advances pattern, with the soil pressure of accurate control excavation face, to prevent earth heaving or to cave in.This moment, pressure was the controlled amounts of PF cylinder pressure, and flow is by the excavation conditional decision of actual soil layer.Can be by the through-flow flow of control loaded hydraulic cylinder, to realize the load simulation in the actual tunneling process.It is electric that operating principle is that the electromagnet of two-bit triplet solenoid operated directional valve 7.2 gets, gating proportional velocity regulating valve 9, and the input signal of regulating proportional flow control valve 9 can obtain the continually varying flow-control, i.e. speed load.
Pressure load under the speed governing propelling pattern: in the shield driving process, if run into stability stratum preferably, or to the less demanding occasion of ground deformation (as the wasteland), can adopt the PF cylinder pressure is carried out Flow-rate adjustment, i.e. speed governing advances pattern, advances.Purpose is to advance with the maximum fltting speed of system, shortens construction period to boost productivity, and in addition, speed governing advances pattern to realize the driving TRAJECTORY CONTROL of shield structure also more conveniently.This moment, flow was the controlled amounts of PF cylinder pressure, and pressure is by the excavation conditional decision of actual soil layer.Can be by the pressure of control loaded hydraulic cylinder, to realize the load simulation in the actual tunneling process.It is electric that operating principle is that the electromagnet of two-bit triplet solenoid operated directional valve 7.1 gets, and gating proportional pressure control valve 8 is in all the time at loading hydraulic cylinder under the prerequisite of retraction movement, and the input signal of regulating proportional pressure control valve 8 can obtain the load of continually varying passive resistance.At this moment, PF cylinder pressure 14 should promote loading hydraulic cylinder 13 to left movement.As long as this disappears to left movement, rest on certain position as hydraulic cylinder, the pressure that then multi-functional load simulation hydraulic system is set up is because hydraulic leak can not continue to remain on the setting.
The proportional throttle valve load: pressure regulation advances under pattern and the speed governing propelling pattern, all can adopt choke valve loads as load: under the pressure regulation propelling pattern, the loading hydraulic cylinder input quantity is a pressure, and output quantity is a flow, and the flow size is according to the pressure of restriction---the discharge characteristic decision; And under the speed governing propelling pattern, the loading hydraulic cylinder input quantity is a flow, and output quantity is a pressure, the same pressure according to restriction of pressure size---discharge characteristic decision.The restriction size can be regulated in real time by the signal of telecommunication.It is electric that operating principle is that the electromagnet of two-bit triplet solenoid operated directional valve 7.3 gets, and gating proportional throttle valve 10 can obtain the loading of choke valve as load, can realize by the size that changes restriction loading.
Claims (1)
1. hydraulic pressure multi-mode charger is simulated on a stratum that is used for the shield propelling system test, comprise the hydraulic propelling system of forming by PF cylinder pressure (14), a hydraulic fluid port (B4) of hydraulic propelling system is connected with PF cylinder pressure (14) rodless cavity, and another hydraulic fluid port (A4) of hydraulic propelling system is connected with PF cylinder pressure (14) rod chamber; It is characterized in that: also comprise three cartridge valves (5.1,5.2,5.3), the resistance of three liquid (6.1,6.2,6.3), three two-bit triplet solenoid operated directional valves (7.1,7.2,7.3), three shuttle valves (11.1,11.2,11.3), six pressure tap (12.1 ~ 12.6), two proportional pressure control valves (3,8), proportional flow control valve (9), proportional throttle valve (10), hydraulic pump (2), motor (1) and loading hydraulic cylinder (13); The oil-in of first proportional pressure control valve (3) is connected with the oil-in of the oil-out of recharging oil device with one way valve (4), the rod chamber of oil-out of first proportional pressure control valve (3) and loading hydraulic cylinder (13) all is connected with fuel tank (15), the oil-out of one way valve (4) respectively with the rodless cavity of loading hydraulic cylinder (13), the hydraulic fluid port a1 of first cartridge valve (5.1), first shuttle valve oil-in c2, second pressure tap (12.2), the hydraulic fluid port a2 of second cartridge valve (5.2), second shuttle valve oil-in c4, the a3 hydraulic fluid port of the 4th the 3rd cartridge valve of pressure tap (12.4) (5.3), the 3rd shuttle valve oil-in c6, the 6th pressure tap (12.6) connects; The oil-in of hydraulic fluid port b1 mouth of first cartridge valve (5.1) and first pressure tap (12.1), the hydraulic fluid port c1 of first shuttle valve (11.1), the oil-in of proportional pressure control valve (8) connects, the hydraulic fluid port b2 of second cartridge valve (5.2) and pressure tap (12.3) oil-in, shuttle valve (11.2) hydraulic fluid port c3, the oil-in of proportional flow control valve (9) connects, the hydraulic fluid port b3 of the 3rd cartridge valve (5.3) and pressure tap (12.5) oil-in, shuttle valve (11.3) hydraulic fluid port c5, the oil-in of proportional throttle valve (10) connects, the oil-out of second proportional pressure control valve (8), the oil-out of proportional flow control valve (9), the oil-out of proportional throttle valve (10) is connected with fuel tank (15), the spring cavity of first cartridge valve (5.1) is connected with the hydraulic fluid port r1 of first liquid resistance (6.1), the hydraulic fluid port r2 of first liquid resistance (6.1) is connected with the hydraulic fluid port p1 of first two-bit triplet solenoid operated directional valve (7.1), the hydraulic fluid port p2 of first two-bit triplet solenoid operated directional valve (7.1) is connected with the oil-out of first shuttle valve (11.1), and the hydraulic fluid port T1 of first two-bit triplet solenoid operated directional valve (7.1) is connected with fuel tank (15); The spring cavity of second cartridge valve (5.2) is connected with the hydraulic fluid port r3 that second liquid hinders (6.2), the hydraulic fluid port r4 of second liquid resistance (6.2) is connected with the hydraulic fluid port p3 of second two-bit triplet solenoid operated directional valve (7.2), the hydraulic fluid port p4 of second two-bit triplet solenoid operated directional valve (7.2) is connected with the oil-out of second shuttle valve (11.2), and the hydraulic fluid port T2 of second two-bit triplet solenoid operated directional valve (7.2) is connected with fuel tank (15); The spring cavity of the 3rd cartridge valve (5.3) is connected with the hydraulic fluid port r5 of the 3rd liquid resistance (6.3), the hydraulic fluid port r6 of the 3rd liquid resistance (6.3) is connected with the hydraulic fluid port p5 of the 3rd two-bit triplet solenoid operated directional valve (7.3), the hydraulic fluid port p6 of the 3rd two-bit triplet solenoid operated directional valve (7.3) is connected with the oil-out of the 3rd shuttle valve (11.3), and the hydraulic fluid port T3 of the 3rd two-bit triplet solenoid operated directional valve (7.3) is connected with fuel tank (15); Loading hydraulic cylinder (13) adopts with PF cylinder pressure (14) top is connected the realization loading.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206889331U CN201943706U (en) | 2010-12-30 | 2010-12-30 | Stratum-simulated hydraulic multi-mode loading device for shield propulsion system test |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206889331U CN201943706U (en) | 2010-12-30 | 2010-12-30 | Stratum-simulated hydraulic multi-mode loading device for shield propulsion system test |
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| CN201943706U true CN201943706U (en) | 2011-08-24 |
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| CN2010206889331U Expired - Lifetime CN201943706U (en) | 2010-12-30 | 2010-12-30 | Stratum-simulated hydraulic multi-mode loading device for shield propulsion system test |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134999A (en) * | 2010-12-30 | 2011-07-27 | 浙江大学 | Formation simulation hydraulic multi-mode loading system for testing shield propulsion system |
| CN102900719A (en) * | 2012-10-15 | 2013-01-30 | 常德中联重科液压有限公司 | Hydraulic switching device, hydraulic system and engineering machinery |
-
2010
- 2010-12-30 CN CN2010206889331U patent/CN201943706U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102134999A (en) * | 2010-12-30 | 2011-07-27 | 浙江大学 | Formation simulation hydraulic multi-mode loading system for testing shield propulsion system |
| CN102134999B (en) * | 2010-12-30 | 2013-03-13 | 浙江大学 | Formation simulation hydraulic multi-mode loading system for testing shield propulsion system |
| CN102900719A (en) * | 2012-10-15 | 2013-01-30 | 常德中联重科液压有限公司 | Hydraulic switching device, hydraulic system and engineering machinery |
| CN102900719B (en) * | 2012-10-15 | 2014-12-31 | 常德中联重科液压有限公司 | Hydraulic switching device, hydraulic system and engineering machinery |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110824 Effective date of abandoning: 20130313 |
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| RGAV | Abandon patent right to avoid regrant |