CN104088859B - The hydraulic redundancy bracing members axle force compensating system of combined type screw thread self-locking - Google Patents
The hydraulic redundancy bracing members axle force compensating system of combined type screw thread self-locking Download PDFInfo
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- CN104088859B CN104088859B CN201410316622.5A CN201410316622A CN104088859B CN 104088859 B CN104088859 B CN 104088859B CN 201410316622 A CN201410316622 A CN 201410316622A CN 104088859 B CN104088859 B CN 104088859B
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Abstract
A hydraulic redundancy bracing members axle force compensating system for combined type screw thread self-locking, relates to hydraulic power unit technical field, and what solve is the low and large technical problem that takes up room of existing system Security.This system comprises at least one power output unit; Described power output unit comprises fuel tank, oil hydraulic pump, redundant valve, and at least one screw thread self-locking oil cylinder, at least one hydraulic oil cylinder driving valve, oil hydraulic pump by each hydraulic oil cylinder driving valve for each screw thread self-locking oil cylinder provides power; Each power output unit is interconnected by redundant valve; Screw thread self-locking oil cylinder comprises cylinder barrel, and the main piston be arranged in cylinder barrel, be arranged on the sub-piston in main piston inner chamber, main piston right part side face is formed with outside thread, cylinder barrel is equipped with a drive motor, a ring gear, the pto＝power take-off of drive motor engages with ring gear, and ring gear is engaged with the outside thread of main piston right part by the internal thread of inner ring.System provided by the invention, security of system is high and take up room little.
Description
Technical field
The present invention relates to hydraulic power unit technology, particularly relate to a kind of technology of hydraulic redundancy bracing members axle force compensating system of combined type screw thread self-locking.
Background technique
Hydraulic pressure steel supporting system is the hydraulic power output system utilizing hydraulic jack outputting power, existing hydraulic pressure steel supporting system mainly contains following two kinds of structural types: 1) all in system hydraulic jacks all provide power by same oil hydraulic pump, this structural type Security is poor, once oil hydraulic pump goes wrong, whole system has just been paralysed, and cannot ensure the safe operation of system; 2) multiple oil hydraulic pump is equipped with in system, each hydraulic jack in system is divided into many groups, each oil hydraulic pump provides power for group hydraulic jack of wherein, a certain oil hydraulic pump goes wrong, only can have influence on the work of wherein one group of hydraulic jack, this structural type is relative to the mode adopting single oil hydraulic pump to provide power, and its Security wants high, but affected hydraulic jack still can the safe operation of influential system, and its Security still has much room for improvement.
In addition, existing hydraulic pressure steel supporting system all realizes the locking of hydraulic jack by arranging the hydraulic lock be made up of Pilot operated check valve on hydraulic pipe line, with ensure hydraulic jack can not because of the system failure unstability.But, the required precision of mode to hydrovalve that this employing hydraulic lock locks hydraulic jack is higher, and relates in the spool that there is hydrovalve, cannot realize the positive lock to hydraulic jack, there is the defect of locking poor reliability, the safe operation of meeting influential system.The monomer ouput force of existing hydraulic jack is also relatively low, under some require higher operating mode to ouput force (such as civil engineering foundation pit construction), the outputting power while of often needing multiple hydraulic jack to cooperatively interact, thus the hydraulic jack quantity in existing hydraulic pressure steel supporting system is relatively many, and system takes up room also larger.
Summary of the invention
For the defect existed in above-mentioned prior art, it is high that technical problem to be solved by this invention is to provide a kind of security of system, and the hydraulic redundancy bracing members axle force compensating system of system takes up room little combined type screw thread self-locking.
In order to solve the problems of the technologies described above, the hydraulic redundancy bracing members axle force compensating system of a kind of combined type screw thread self-locking provided by the present invention, comprises at least one power output unit;
Described power output unit comprises fuel tank, oil hydraulic pump, and at least one screw thread self-locking oil cylinder, at least one hydraulic oil cylinder driving valve, the quantity also one_to_one corresponding consistent with the quantity of screw thread self-locking oil cylinder of hydraulic oil cylinder driving valve wherein, hydraulic oil cylinder driving valve is wherein four Twoway valvess, the inlet port of oil hydraulic pump receives fuel tank, the pump hydraulic fluid port of oil hydraulic pump receives the pressure oil port of each hydraulic oil cylinder driving valve, overflow relief valve is connected between the pump hydraulic fluid port of oil hydraulic pump and fuel tank, the return opening of each hydraulic oil cylinder driving valve receives fuel tank, two active chambers of corresponding screw thread self-locking oil cylinder all received respectively by two actuator ports of each hydraulic oil cylinder driving valve by hydraulic lock,
It is characterized in that: described power output unit also comprises a redundant valve, described redundant valve is stop valve, and two actuator ports of redundant valve are respectively the first hydraulic fluid port, the second hydraulic fluid port;
First hydraulic fluid port of the redundant valve in each power output unit all receives the pressure oil port of each hydraulic oil cylinder driving valve of this unit, and second hydraulic fluid port of the redundant valve in each power output unit is all communicated with the second hydraulic fluid port of the redundant valve in other power output unit;
Described screw thread self-locking oil cylinder comprises cylinder barrel, main piston, sub-piston, the two ends, left and right of cylinder barrel are respectively closed by a cylinder cap, main piston is arranged in inner cavity of cylinder with sliding matching mode, and inner cavity of cylinder is separated into each separate active chamber around, left active chamber is wherein rodless cavity, and right active chamber is wherein rod chamber, the barrel of cylinder barrel offers two actuator ports, one of them actuator port is communicated with rodless cavity, and another actuator port is communicated with rod chamber;
Described main piston is cylinder-piston, the right-hand member of main piston extends cylinder barrel outside through the right cylinder cap of cylinder barrel, the connecting part of main piston and the right cylinder cap of cylinder barrel is slidably matched and hermetic seal, the outside thread that it is screw axis that the side face of main piston right part is formed with main piston central axis;
Described cylinder barrel is equipped with a drive motor, a rotating ring gear, the pto＝power take-off of described drive motor engages with ring gear, the core wheel axis of described ring gear and main piston central axes, the inner ring of ring gear has the internal thread engaged with the outside thread of main piston right part;
Described main piston have one with it the coaxial and cylindrical cavity of integrally closed, this cylindrical cavity is compensated cavity, described sub-piston is arranged in compensated cavity with sliding matching mode, and compensated cavity is separated into each separate sub-chamber around, the left end of sub-piston stretches into the rodless cavity of cylinder barrel through the left end chamber wall of compensated cavity, the connecting part of sub-piston and main piston is slidably matched and hermetic seal, sub-piston has an axially through axis hole, axis hole on the left sub-chamber of compensated cavity and sub-piston cuts off mutually, the right sub-chamber of compensated cavity is communicated with the rodless cavity of cylinder barrel by the axis hole on sub-piston.
The hydraulic redundancy bracing members axle force compensating system of combined type screw thread self-locking provided by the invention, all oil hydraulic pump is equipped with in each power output unit, when oil hydraulic pump in a power output unit breaks down, other unit by redundant valve for trouble unit provides power, the safe operation of system can be ensured, have the advantages that security of system is high, and each screw thread self-locking oil cylinder all can utilize ring gear to lock reliably with main piston side face externally threaded cooperation, can improve security of system further; In addition, when screw thread self-locking oil cylinder runs, sub-piston can produce a compound thrust to main piston, the ouput force of main piston is further promoted, when oil cylinder working-pressure is constant, existing single ram cylinder that the ouput force of main piston compares same specification can increase about 60%, and the monomer ouput force of screw thread self-locking oil cylinder is larger, therefore in system, the oil cylinder quantity of required configuration is relatively less, and system takes up room also less.
Accompanying drawing explanation
Fig. 1 is the hydraulic diagram of the hydraulic redundancy bracing members axle force compensating system of the combined type screw thread self-locking of the embodiment of the present invention;
Fig. 2 is that the master of screw thread self-locking oil cylinder in the hydraulic redundancy bracing members axle force compensating system of the combined type screw thread self-locking of the embodiment of the present invention looks cut away view.
Embodiment
Illustrate below in conjunction with accompanying drawing and be described in further detail embodiments of the invention, but the present embodiment is not limited to the present invention, every employing analog structure of the present invention and similar change thereof, all should list protection scope of the present invention in.
As shown in Figure 1, the hydraulic redundancy bracing members axle force compensating system of a kind of combined type screw thread self-locking that the embodiment of the present invention provides, comprise three power output units, these three power output units are respectively the first power output unit, the second power output unit, the 3rd power output unit;
First power output unit comprises fuel tank Y1, oil hydraulic pump D1, redundant valve S1, and two screw thread self-locking oil cylinder U11, U12, two hydraulic oil cylinder driving valve H11, H12, the quantity also one_to_one corresponding consistent with the quantity of screw thread self-locking oil cylinder of hydraulic oil cylinder driving valve wherein, the inlet port of oil hydraulic pump D1 wherein receives fuel tank Y1, the pump hydraulic fluid port of oil hydraulic pump D1 receives each hydraulic oil cylinder driving valve H11, the pressure oil port of H12, overflow relief valve is connected between the pump hydraulic fluid port of oil hydraulic pump D1 and fuel tank Y1, each hydraulic oil cylinder driving valve H11, the return opening of H12 receives fuel tank Y1, two active chambers of corresponding screw thread self-locking oil cylinder all received respectively by two actuator ports of each hydraulic oil cylinder driving valve by hydraulic lock, redundant valve S1 is stop valve, and two actuator ports of redundant valve S1 are respectively the first hydraulic fluid port, the second hydraulic fluid port,
Second power output unit comprises fuel tank Y2, oil hydraulic pump D2, redundant valve S2, and two screw thread self-locking oil cylinder U21, U22, two hydraulic oil cylinder driving valve H21, H22, the quantity also one_to_one corresponding consistent with the quantity of screw thread self-locking oil cylinder of hydraulic oil cylinder driving valve wherein, the inlet port of oil hydraulic pump D2 wherein receives fuel tank Y2, the pump hydraulic fluid port of oil hydraulic pump D2 receives each hydraulic oil cylinder driving valve H21, the pressure oil port of H22, overflow relief valve is connected between the pump hydraulic fluid port of oil hydraulic pump D2 and fuel tank Y2, each hydraulic oil cylinder driving valve H21, the return opening of H22 receives fuel tank Y2, two active chambers of corresponding screw thread self-locking oil cylinder all received respectively by two actuator ports of each hydraulic oil cylinder driving valve by hydraulic lock, redundant valve S2 is stop valve, and two actuator ports of redundant valve S2 are respectively the first hydraulic fluid port, the second hydraulic fluid port,
3rd power output unit comprises fuel tank Y3, oil hydraulic pump D3, redundant valve S3, and two screw thread self-locking oil cylinder U31, U32, two hydraulic oil cylinder driving valve H31, H32, the quantity also one_to_one corresponding consistent with the quantity of screw thread self-locking oil cylinder of hydraulic oil cylinder driving valve wherein, the inlet port of oil hydraulic pump D3 wherein receives fuel tank Y3, the pump hydraulic fluid port of oil hydraulic pump D3 receives each hydraulic oil cylinder driving valve H31, the pressure oil port of H32, overflow relief valve is connected between the pump hydraulic fluid port of oil hydraulic pump D3 and fuel tank Y3, each hydraulic oil cylinder driving valve H31, the return opening of H32 receives fuel tank Y3, two active chambers of corresponding screw thread self-locking oil cylinder all received respectively by two actuator ports of each hydraulic oil cylinder driving valve by hydraulic lock, redundant valve S3 is stop valve, and two actuator ports of redundant valve S3 are respectively the first hydraulic fluid port, the second hydraulic fluid port,
First hydraulic fluid port of the redundant valve in each power output unit all receives the pressure oil port of each hydraulic oil cylinder driving valve of this unit, and second hydraulic fluid port of the redundant valve in each power output unit is all communicated with the second hydraulic fluid port of the redundant valve in other power output unit;
As shown in Figure 2, described screw thread self-locking oil cylinder comprises cylinder barrel 1, main piston 2, sub-piston 3, the two ends, left and right of cylinder barrel 1 are respectively closed by a cylinder cap 4, main piston 2 is arranged in cylinder barrel 1 inner chamber with sliding matching mode, and cylinder barrel 1 inner chamber is separated into each separate active chamber around, left active chamber is wherein rodless cavity 11, right active chamber is wherein rod chamber 12, the barrel of cylinder barrel 1 offers two actuator ports, one of them actuator port is communicated with rodless cavity 11, and another actuator port is communicated with rod chamber 12;
Described main piston 2 is cylinder-piston, the right-hand member of main piston 2 extends cylinder barrel outside through the right cylinder cap 4 of cylinder barrel, main piston 2 is slidably matched and hermetic seal with the connecting part of the right cylinder cap 4 of cylinder barrel, the outside thread that it is screw axis that the side face of main piston 2 right part is formed with main piston central axis;
Described cylinder barrel 1 is equipped with the rotating ring gear 6 of a drive motor 5, the pto＝power take-off of described drive motor 5 engages with ring gear 6, the core wheel axis of described ring gear 6 and main piston central axes, the inner ring of ring gear 6 has the internal thread engaged with the outside thread of main piston 2 right part;
Described main piston 2 have one with it the coaxial and cylindrical cavity of integrally closed, this cylindrical cavity is compensated cavity 21, described sub-piston 3 is arranged in compensated cavity 21 with sliding matching mode, and compensated cavity 21 is separated into each separate sub-chamber around, the left end of sub-piston 3 stretches into the rodless cavity 11 of cylinder barrel through the left end chamber wall of compensated cavity 21, sub-piston 3 is slidably matched and hermetic seal with the connecting part of main piston 2, sub-piston 3 has an axially through axis hole 31, axis hole 31 on the left sub-chamber of compensated cavity 21 and sub-piston cuts off mutually, the right sub-chamber of compensated cavity 21 is communicated with the rodless cavity 11 of cylinder barrel by the axis hole 31 on sub-piston.
In other embodiment of the present invention, the quantity of power output unit also can be more than 2 or 3, and the screw thread self-locking oil cylinder in single power output unit and the quantity of hydraulic oil cylinder driving valve also can be more than 2.
The working principle of the embodiment of the present invention is as follows:
When system is normally run, each power output unit independent operating separately, each power output unit provides power by the oil hydraulic pump of this unit for each screw thread self-locking oil cylinder in this unit, controls each screw thread self-locking oil cylinder in this unit run by each hydraulic oil cylinder driving valve in this unit;
When the oil hydraulic pump in a certain power output unit (such as the first power output unit) breaks down, oil hydraulic pump in other power output unit (such as second, third power output unit) by redundant valve for trouble unit provides power, to ensure that each screw thread self-locking oil cylinder of trouble unit can run normally.
The working principle of the screw thread self-locking oil cylinder in the embodiment of the present invention is as follows:
The actuator port of rod chamber side is connected oil returning tube, pressure oil is injected rodless cavity by the actuator port of rodless cavity side, utilize drive motor to order about ring gear to rotate forward simultaneously, main piston can be promoted slide to the right, main piston is stretched out to the right, meanwhile, pressure oil in rodless cavity enters the right sub-chamber of compensated cavity by the axis hole on sub-piston, thus a compound thrust is produced to main piston, the ouput force of main piston is further promoted, when oil cylinder working-pressure is constant, existing single ram cylinder that the ouput force of main piston compares same specification can increase about 60%, after master piston slides puts in place, drive motor stall, ring gear is stall thereupon also, now ring gear namely by thread engagement mode by locking firm for main piston,
The actuator port of rodless cavity side is connected oil returning tube, pressure oil is injected rod chamber by the actuator port of rod chamber side, utilize drive motor to order about ring gear reversion simultaneously, main piston can be promoted and slide left, main piston is retracted left.
Claims (1)
1. a hydraulic redundancy bracing members axle force compensating system for combined type screw thread self-locking, comprises at least one power output unit;
Described power output unit comprises fuel tank, oil hydraulic pump, and at least one screw thread self-locking oil cylinder, at least one hydraulic oil cylinder driving valve, the quantity also one_to_one corresponding consistent with the quantity of screw thread self-locking oil cylinder of hydraulic oil cylinder driving valve wherein, hydraulic oil cylinder driving valve is wherein four Twoway valvess, the inlet port of oil hydraulic pump receives fuel tank, the pump hydraulic fluid port of oil hydraulic pump receives the pressure oil port of each hydraulic oil cylinder driving valve, overflow relief valve is connected between the pump hydraulic fluid port of oil hydraulic pump and fuel tank, the return opening of each hydraulic oil cylinder driving valve receives fuel tank, two active chambers of corresponding screw thread self-locking oil cylinder all received respectively by two actuator ports of each hydraulic oil cylinder driving valve by hydraulic lock,
It is characterized in that: described power output unit also comprises a redundant valve, described redundant valve is stop valve, and two actuator ports of redundant valve are respectively the first hydraulic fluid port, the second hydraulic fluid port;
First hydraulic fluid port of the redundant valve in each power output unit all receives the pressure oil port of each hydraulic oil cylinder driving valve of this unit, and the second hydraulic fluid port of the redundant valve in each power output unit is all communicated with the second hydraulic fluid port of the redundant valve in other power output unit;
Described screw thread self-locking oil cylinder comprises cylinder barrel, main piston, sub-piston, the two ends, left and right of cylinder barrel are respectively closed by a cylinder cap, main piston is arranged in inner cavity of cylinder with sliding matching mode, and inner cavity of cylinder is separated into each separate active chamber around, left active chamber is wherein rodless cavity, and right active chamber is wherein rod chamber, the barrel of cylinder barrel offers two actuator ports, one of them actuator port is communicated with rodless cavity, and another actuator port is communicated with rod chamber;
Described main piston is cylinder-piston, the right part of main piston extends cylinder barrel outside through the right cylinder cap of cylinder barrel, the connecting part of main piston and the right cylinder cap of cylinder barrel is slidably matched and hermetic seal, the outside thread that it is screw axis that the side face of main piston right part is formed with main piston central axis;
Described cylinder barrel is equipped with a drive motor, a rotating ring gear, the pto＝power take-off of described drive motor engages with ring gear, the core wheel axis of described ring gear and main piston central axes, the inner ring of ring gear has the internal thread engaged with the outside thread of main piston right part;
Described main piston have one with it the coaxial and cylindrical cavity of integrally closed, this cylindrical cavity is compensated cavity, described sub-piston is arranged in compensated cavity with sliding matching mode, and compensated cavity is separated into each separate sub-chamber around, the left end of sub-piston stretches into the rodless cavity of cylinder barrel through the left end chamber wall of compensated cavity, the connecting part of sub-piston and main piston is slidably matched and hermetic seal, sub-piston has an axially through axis hole, axis hole on the left sub-chamber of compensated cavity and sub-piston cuts off mutually, the right sub-chamber of compensated cavity is communicated with the rodless cavity of cylinder barrel by the axis hole on sub-piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410316622.5A CN104088859B (en) | 2014-07-06 | 2014-07-06 | The hydraulic redundancy bracing members axle force compensating system of combined type screw thread self-locking |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410316622.5A CN104088859B (en) | 2014-07-06 | 2014-07-06 | The hydraulic redundancy bracing members axle force compensating system of combined type screw thread self-locking |
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| CN104088859A CN104088859A (en) | 2014-10-08 |
| CN104088859B true CN104088859B (en) | 2016-04-13 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000110801A (en) * | 1998-10-02 | 2000-04-18 | Shimizu Corp | Hydraulic pump unit |
| GB2340486B (en) * | 1998-08-17 | 2002-05-22 | Trans Nordic Hydraulics Ltd | An hydraulic power system on a vehicle |
| JP4092167B2 (en) * | 2002-10-07 | 2008-05-28 | 極東開発工業株式会社 | Auxiliary power unit device |
| JP2013100738A (en) * | 2011-11-07 | 2013-05-23 | Sumitomo Heavy Ind Ltd | Closed hydraulic circuit system |
| CN204082785U (en) * | 2014-07-06 | 2015-01-07 | 上海宏信设备工程有限公司 | The hydraulic redundancy bracing members axle force compensating system of combined type screw thread self-locking |
-
2014
- 2014-07-06 CN CN201410316622.5A patent/CN104088859B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2340486B (en) * | 1998-08-17 | 2002-05-22 | Trans Nordic Hydraulics Ltd | An hydraulic power system on a vehicle |
| JP2000110801A (en) * | 1998-10-02 | 2000-04-18 | Shimizu Corp | Hydraulic pump unit |
| JP4092167B2 (en) * | 2002-10-07 | 2008-05-28 | 極東開発工業株式会社 | Auxiliary power unit device |
| JP2013100738A (en) * | 2011-11-07 | 2013-05-23 | Sumitomo Heavy Ind Ltd | Closed hydraulic circuit system |
| CN204082785U (en) * | 2014-07-06 | 2015-01-07 | 上海宏信设备工程有限公司 | The hydraulic redundancy bracing members axle force compensating system of combined type screw thread self-locking |
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| CN104088859A (en) | 2014-10-08 |
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Effective date of registration: 20170123 Address after: Nansha District Fengze road Guangzhou city Guangdong province 511458 No. 106 Nansha City Investment Building 16 floor X1603 Patentee after: Acer Road, Guangzhou equipment Engineering Co., Ltd. Address before: 201806 Shanghai, Jiading District, Shanghai Yi Road, room 5358, No. 230 Patentee before: Shanghai Horizon Equipment Engineering Co., Ltd. |