CN201162738Y - Energy-saving hydraulic control apparatus of variable rotation speed driving shield blade disc - Google Patents
Energy-saving hydraulic control apparatus of variable rotation speed driving shield blade disc Download PDFInfo
- Publication number
- CN201162738Y CN201162738Y CNU2008200819910U CN200820081991U CN201162738Y CN 201162738 Y CN201162738 Y CN 201162738Y CN U2008200819910 U CNU2008200819910 U CN U2008200819910U CN 200820081991 U CN200820081991 U CN 200820081991U CN 201162738 Y CN201162738 Y CN 201162738Y
- Authority
- CN
- China
- Prior art keywords
- valve
- way valve
- hydraulic
- oil
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Fluid-Pressure Circuits (AREA)
Abstract
The utility model discloses an energy-saving hydraulic control device for a variable speed driving shield cutterhead, comprising a main hydraulic circuit and a make-up circuit; wherein, the main hydraulic circuit consists of a change speed motor, a two-way hydraulic pump, a one-way valve, a hydraulic motor, a hydraulic lock, a reversing valve and a spillover valve. The output revolution of the asynchronous motor of the two-way hydraulic pump is controlled by variable speed; the revolution of the asynchronous motor is changed by adjusting the output signal of a rotary speed controller according to the rotary speed required by the cutterhead cutting earth mass, thus controlling the flow volume output by the two-way hydraulic pump; the hydraulic motor is driven to output the torque and revolution required by the cutterhead. The main hydraulic circuit, which adopts a closed type hydraulic circuit, directly transmits the liquid oil at the oil drainage mouth of the hydraulic motor to the inlet port of the motor through the two-way hydraulic pump, thus reducing the volume of the hydraulic system pump station. High and low working pressures are provided to meet the requirements of the shield driving cutterhead which runs under different geological conditions, such as soft land and hard rock. By adopting a change speed control, the flow volume output by the hydraulic pump is matched with the power of the cutterhead with an obvious energy-saving effect.
Description
Technical field
The utility model relates to fluid pressure actuator, especially relates to a kind of rotating speed variable driving shield cutterhead energy-saving hydraulic control device.
Background technique
The shield cutter drive system is the important component part of shield machine, is bearing the task that the cutterhead rotary cutting excavation face soil body stirs the soil body in the sealed compartment that drives.Have that power is big, the characteristics of variable power wide ranges.The drive system of cutterhead must have high reliability and good operating characteristics, if adopt the valve horse-controlling to reach hydraulic driving, then system power will be by required peak output design, running under the underload operating mode, the loop exists bigger spill losses and restriction loss, and system effectiveness is low, and a large amount of power will dissipate by the form of heat, make system's heating serious, and then influence shield structure fltting speed.
The variable speed hydraulic power transmission can be come the input flow rate of regulator solution press pump according to the need of work of load, no restriction loss, thereby embodied than the higher energy-saving effect of valve control hydraulic system.In addition, become displacement control with tradition and compare, since little when the friction equal loss of oil hydraulic pump and motor is all than high speed under the low cruise state, so bigger energy-saving potential is arranged.Variable speed volumetric speed control technology is by changing the driven pump rotating speed of motor, the size of regulating POF, thereby the adjusting of realization load operation speed, the demand of suitable shield cutter operating mode.
Summary of the invention
The purpose of this utility model is to provide a kind of rotating speed variable driving shield cutterhead energy-saving hydraulic control device, adopt the shield cutter driving of variable speed technology realization volumetric speed control to use the Closed Hydraulic control system, but system's output torque and rotating speed timely adjustment are to satisfy the varying duty need of work.
The technological scheme that the utility model adopted is:
Variable speed motor in its major loop links to each other with the bidirectional hydraulic pump through coupling; First one-way valve is connected in series mutually with the filler opening of second one-way valve, and the 3rd one-way valve is connected in series mutually with the oil outlet of the 4th one-way valve; The filler opening of one end of bidirectional hydraulic pump and the oil outlet of first one-way valve, the 3rd one-way valve and connect after, be connected in series first Pilot operated check valve and link to each other with a hydraulic fluid port of oil hydraulic motor; The filler opening of the oil outlet of the other end of bidirectional hydraulic pump and second one-way valve, the 4th one-way valve and connect after, be connected in series second Pilot operated check valve and link to each other with another hydraulic fluid port of oil hydraulic motor; After the filler opening of high-pressure overflow valve and the filler opening of low pressure relief valve pass through three position four-way directional control valve A mouth and B mouth respectively, be connected with the oil outlet P8 mouth of the 3rd one-way valve, the oil outlet P6 mouth of the 4th one-way valve, the oil outlet of high-pressure overflow valve is connected with fuel tank with the oil outlet of low pressure relief valve; 3 mouthfuls of the oil inlet P of 1 mouthful of the oil inlet P of first one-way valve and second one-way valve link to each other with feed circuit.
Described feed circuit, its motor links to each other with slippage pump, one termination fuel tank of slippage pump, the other end of slippage pump connect 3 mouthfuls of the oil inlet P of 1 mouthful of the oil inlet P of first one-way valve and second one-way valve together through the 5th one-way valve and accumulator, one termination fuel tank of repairing relief valve, another termination the 5th one-way valve oil outlet of repairing relief valve.
The beneficial effect that the utlity model has is:
1) adopt variable speed volumetric speed control technology control shield cutter to drive the oil hydraulic motor rotating speed, different capacity demand when the size of adjusting motor variable speed device output signal control oil hydraulic pump output flow according to the shield driving operating mode is in real time tunneled different geological conditions under to adapt to, can not produce more than flow, can avoid energy loss to greatest extent;
2) adopt the bidirectional hydraulic pump as the hydraulic power energy, saved throttle element, system architecture is simple, the reliability height;
3) hydraulic lock that adopts Pilot operated check valve to form can realize the cutterhead bidirectional rapid braking, helps fault emergency treatment in the tunneling process;
4) adopt variable speed technology control oil hydraulic motor rotating speed, can realize the continuous precise speed governing;
5) be suitable for from the weak soil to the hard rock cutter plate driver under the various working conditions.
Description of drawings
Accompanying drawing is a rotating speed variable driving shield cutterhead energy-saving hydraulic control device structure principle chart of the present utility model.
Among the figure: 1. variable speed motor, 2. coupling, 3. bidirectional hydraulic pump, 7,9,21,23,17 is one-way valve, 12. accumulators, 16. repairing relief valves, 18. slippage pump, 19. motors, 25,29 is Pilot operated check valve, 26. two-way hydraulic motor, 33. three position four-way directional control valves, 37, low pressure relief valve, 38, fuel tank, 39, high-pressure overflow valve, 27,28 is control oil channel, 4,5,6,8,10,11,13,14,15,20,22,24,30,31,32,34,35,36 is pipeline.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
As shown in drawings, the variable speed motor 1 in its major loop of the utility model links to each other with bidirectional hydraulic pump 3 through coupling 2; The filler opening of first one-way valve 7 and second one-way valve 9 is connected in series mutually, and the oil outlet of the 3rd one-way valve 21 and the 4th one-way valve 23 is connected in series mutually; The filler opening of one end of bidirectional hydraulic pump 3 and the oil outlet of first one-way valve 7, the 3rd one-way valve 21 and connect after, be connected in series first Pilot operated check valve 25 and link to each other with a hydraulic fluid port of oil hydraulic motor 26; The filler opening of the oil outlet of the other end of bidirectional hydraulic pump 3 and second one-way valve 7, the 4th one-way valve 21 and connect after, be connected in series second Pilot operated check valve 29 and link to each other with another hydraulic fluid port of oil hydraulic motor 26; After the filler opening of the filler opening of high-pressure overflow valve 39 and low pressure relief valve 37 passes through three position four-way directional control valve 33A mouth and B mouth respectively, be connected with the oil outlet P8 mouth of the 3rd one-way valve 21, the oil outlet P6 mouth of the 4th one-way valve 21, the oil outlet of the oil outlet of high-pressure overflow valve 39 and low pressure relief valve 37 is connected with fuel tank; 3 mouthfuls of the oil inlet P of 1 mouthful of the oil inlet P of first one-way valve 7 and second one-way valve 9 link to each other with feed circuit.
Described feed circuit, its motor 19 links to each other with slippage pump 18, one termination fuel tank 38 of slippage pump 18, the other end of slippage pump 18 connect 3 mouthfuls of the oil inlet P of 1 mouthful of the oil inlet P of first one-way valve 7 and second one-way valve 9 together through the 5th one-way valve 17 and accumulator 12, one termination fuel tank 38 of repairing relief valve 16, another termination the 5th one-way valve 17 oil outlets of repairing relief valve 16.
Working principle of the present utility model is as follows:
When the sense of rotation of regulating variable speed motor 1, when coupling 2 drive bidirectional hydraulic pumps 3 are rotated in the forward, oil hydraulic pump 3 is by oil outlet and repairing pipeline 10 oil suctions of pipeline 5 from oil hydraulic motor 26, bidirectional hydraulic pump 3 pumps into oil hydraulic motor high pressure hydraulic fluid port with the fluid that sucks through Pilot operated check valve 25 and pipeline 30 by pipeline 4, and drive motor is rotated in the forward.At this moment, the control oil channel 28 of Pilot operated check valve 29 links to each other with pipeline 4, Pilot operated check valve 29 reverse-conductings under the high pressure oil effect.By regulating the rotating speed of variable speed motor 1, the oil suction of bidirectional hydraulic pump 3 and oil extraction flow also change thereupon, thereby the rotating speed of regulator solution pressure motor 26 and cutterhead adapts itself and load behavior.When three position four-way directional control valve 33 left side electromagnet are switched on, the P mouth of three position four-way directional control valve 33 and A mouth are connected, high pressure oil part in the pipeline 4 20 enters the 3rd one-way valve 21 hydraulic fluid port P7 by the road, flow out through pipeline 22,32 and three position four-way directional control valve 33 from the 3rd one-way valve 21 hydraulic fluid port P8 again and flow to high-pressure overflow valve 39 filler openings, when reaching default pressure, high-pressure overflow valve 39 is opened, pressure oil in the pipeline 4 flows back to fuel tank through relief valve 39, relief valve 39 plays the pressure limiting effect, and this moment, the cutterhead system can be operated in the high pulling torque operating mode.When three position four-way directional control valve 33 the right electromagnet are switched on, the P mouth of three position four-way directional control valve 33 and B mouth are connected, high pressure oil part in the pipeline 4 20 enters the 3rd one-way valve 21 hydraulic fluid port P7 by the road, flow out through pipeline 22,32 and three position four-way directional control valve 33 from the 3rd one-way valve 21 hydraulic fluid port P8 again and flow to low pressure relief valve 37 filler openings, when reaching default pressure, low pressure relief valve 37 is opened, pressure oil in the pipeline 4 flows back to fuel tank through relief valve 37, relief valve 37 plays the pressure limiting effect, and this moment, the cutterhead system can be operated in little moment of torsion operating mode.
When the sense of rotation of regulating variable speed motor 1, when making it drive 3 counterrotatings of bidirectional hydraulic pump, bidirectional hydraulic pump 3 is by oil outlet and repairing pipeline 6 oil suctions of pipeline 4 from oil hydraulic motor 26, pump 3 pumps into oil hydraulic motor high pressure hydraulic fluid port, drive motor counterrotating with the fluid that sucks through Pilot operated check valve 29 and pipeline 31 by pipeline 5.At this moment, the control oil channel 27 of Pilot operated check valve 25 links to each other with pipeline 5, Pilot operated check valve 25 reverse-conductings under the high pressure oil effect.By regulating the rotating speed of variable speed motor 1, the oil suction of bidirectional hydraulic pump 3 and oil extraction flow also change thereupon, thereby the rotating speed of regulator solution pressure motor 26 and cutterhead adapts itself and load behavior.When three position four-way directional control valve 33 left side electromagnet are switched on, the P mouth of three position four-way directional control valve 33 and A mouth are connected, high pressure oil part in the pipeline 5 24 enters the 4th one-way valve 23 hydraulic fluid port P5 by the road, flow out through pipeline 22,32 and three position four-way directional control valve 33 from the 4th one-way valve 23 hydraulic fluid port P6 again and flow to high-pressure overflow valve 39 filler openings, when reaching default pressure, high-pressure overflow valve 39 is opened, pressure oil in the pipeline 5 flows back to fuel tank through relief valve 39, relief valve 39 plays the pressure limiting effect, and this moment, the cutterhead system can be operated in the high pulling torque operating mode.When three position four-way directional control valve 33 the right electromagnet are switched on, the P mouth of three position four-way directional control valve 33 and B mouth are connected, high pressure oil part in the pipeline 5 24 enters the 4th one-way valve 23 hydraulic fluid port P5 by the road, flow out through pipeline 22,32 and three position four-way directional control valve 33 from the 4th one-way valve 23 hydraulic fluid port P6 again and flow to low pressure relief valve 37 filler openings, when reaching default pressure, low pressure relief valve 37 is opened, pressure oil in the pipeline 5 flows back to fuel tank through relief valve 37, relief valve 37 plays the pressure limiting effect, and this moment, the cutterhead system can be operated in little moment of torsion operating mode.
When three position four-way directional control valve 33 electromagnet cut off the power supply, system unloaded, oil hydraulic motor fast and stable braking under the acting in conjunction of Pilot operated check valve 25,29.
Exist when considering hydraulic work system and leak, so native system is provided with corresponding feed circuit.The hydraulic oil of slippage pump 18 outputs flows to pipeline 14,15 through one-way valve 17, accumulator 12 is connected with pipeline 14 by pipeline 13, one-way valve 7 hydraulic fluid port P2 are connected with pipeline 4 by pipeline 6, one-way valve 9 hydraulic fluid port P4 are connected with pipeline 5 by pipeline 10, one-way valve 7,9 hydraulic fluid port P1, P3 are connected with pipeline 14 by pipeline 8,11, when the needs repairing, pressure oil in the pipeline 14 by the road 11,8 and one-way valve enter the oil hydraulic pump oil sucting cavity, simultaneously, pressure oil in the pipeline 15 flows to repairing relief valve 16 filler openings, and oil compensation pressure is set up by repairing relief valve 16.Because the existence of one-way valve 7,9, system can realize two-way repairing.Accumulator 12 plays the pressurize effect.
Claims (2)
1, a kind of rotating speed variable driving shield cutterhead energy-saving hydraulic control device is characterized in that: the variable speed motor (1) in its major loop links to each other with bidirectional hydraulic pump (3) through coupling (2); First one-way valve (7) is connected in series mutually with the filler opening of second one-way valve (9), and the 3rd one-way valve (21) is connected in series mutually with the oil outlet of the 4th one-way valve (23); The filler opening of the oil outlet of one end of bidirectional hydraulic pump (3) and first one-way valve (7), the 3rd one-way valve (21) and connect after, be connected in series first Pilot operated check valve (25) and link to each other with a hydraulic fluid port of oil hydraulic motor (26); The filler opening of the oil outlet of the other end of bidirectional hydraulic pump (3) and second one-way valve (7), the 4th one-way valve (21) and connect after, be connected in series second Pilot operated check valve (29) and link to each other with another hydraulic fluid port of oil hydraulic motor (26); After the filler opening of the filler opening of high-pressure overflow valve (39) and low pressure relief valve (37) passes through three position four-way directional control valve (33) A mouth and B mouth respectively, be connected with the oil outlet P8 mouth of the 3rd one-way valve (21), the oil outlet P6 mouth of the 4th one-way valve (21), the oil outlet of high-pressure overflow valve (39) is connected with fuel tank with the oil outlet of low pressure relief valve (37); 3 mouthfuls of the oil inlet P of 1 mouthful of the oil inlet P of first one-way valve (7) and second one-way valve (9) link to each other with feed circuit.
2, a kind of rotating speed variable driving shield cutterhead energy-saving hydraulic control device according to claim 1, it is characterized in that: described feed circuit, its motor (19) links to each other with slippage pump (18), one termination fuel tank (38) of slippage pump (18), the other end of slippage pump (18) connect 3 mouthfuls of the oil inlet P of 1 mouthful of the oil inlet P of first one-way valve (7) and second one-way valve (9) together through the 5th one-way valve (17) and accumulator (12), one termination fuel tank (38) of repairing relief valve (16), another termination the 5th one-way valve (17) oil outlet of repairing relief valve (16).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200819910U CN201162738Y (en) | 2008-01-09 | 2008-01-09 | Energy-saving hydraulic control apparatus of variable rotation speed driving shield blade disc |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200819910U CN201162738Y (en) | 2008-01-09 | 2008-01-09 | Energy-saving hydraulic control apparatus of variable rotation speed driving shield blade disc |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201162738Y true CN201162738Y (en) | 2008-12-10 |
Family
ID=40183675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200819910U Expired - Lifetime CN201162738Y (en) | 2008-01-09 | 2008-01-09 | Energy-saving hydraulic control apparatus of variable rotation speed driving shield blade disc |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201162738Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492053B (en) * | 2009-02-19 | 2010-12-08 | 肖公平 | Ropeway fluid power system for mine |
| CN103088167A (en) * | 2013-01-30 | 2013-05-08 | 扬州扬宝机械有限公司 | Hydraulic system for rotating and synchronizing rubber roller and felt roller of squeezing and stretching machine |
| CN103244510A (en) * | 2013-05-15 | 2013-08-14 | 无锡市钻通工程机械有限公司 | Oil supplementing system for hydraulic motor |
| CN109519181A (en) * | 2018-12-11 | 2019-03-26 | 山东交通学院 | Propulsion system is connected in series in the symmetrical hydraulic cylinder of shield excavation machine single-piston rod |
-
2008
- 2008-01-09 CN CNU2008200819910U patent/CN201162738Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101492053B (en) * | 2009-02-19 | 2010-12-08 | 肖公平 | Ropeway fluid power system for mine |
| CN103088167A (en) * | 2013-01-30 | 2013-05-08 | 扬州扬宝机械有限公司 | Hydraulic system for rotating and synchronizing rubber roller and felt roller of squeezing and stretching machine |
| CN103088167B (en) * | 2013-01-30 | 2015-11-04 | 扬州扬宝机械有限公司 | A kind of water squeezing striking-out machine rubber roll felt roll rotates synchronization hydraulic system |
| CN103244510A (en) * | 2013-05-15 | 2013-08-14 | 无锡市钻通工程机械有限公司 | Oil supplementing system for hydraulic motor |
| CN109519181A (en) * | 2018-12-11 | 2019-03-26 | 山东交通学院 | Propulsion system is connected in series in the symmetrical hydraulic cylinder of shield excavation machine single-piston rod |
| CN109519181B (en) * | 2018-12-11 | 2023-12-01 | 山东交通学院 | Single-piston rod symmetrical hydraulic oil cylinder series connection propulsion system of shield tunneling machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100520087C (en) | Rotating speed variable driving shield cutterhead energy-saving hydraulic control system | |
| CN101503960B (en) | Multi-pump combined driving shield-tunneling blade disc hydraulic system | |
| CN101550830B (en) | Energy-efficient shield cutterhead closed loop hydraulic control system adopting ganged accumulators | |
| CN102588358B (en) | High-performance energy saving type electro-hydraulic servo control oil line | |
| CN101967980B (en) | Cutterhead closed type hydraulic drive system adopting revolving speed-variable and displacement-variable compound control | |
| CN202249733U (en) | Hydraulic device of drill | |
| CN203926235U (en) | Have many actuators loop without throttling hydraulic system | |
| CN102747949A (en) | Fast propulsion hydraulic control loop of down-the-hole drill rig | |
| CN101408108B (en) | Shield cutter head hydraulic system driven by mixed motor serial connection and parallel connection | |
| CN108533546B (en) | Hydraulic excavator power system adopting double-pump direct drive and differential fast forward automatic switching | |
| CN103062140B (en) | Hydraulic device on basis of confluence control mode | |
| CN101403309B (en) | Tunnel shielding blade disc hydraulic control system with widened timing range | |
| CN101718200B (en) | Shield cutter rotary drive pressure adapting hydraulic control system of proportional valve controlled energy accumulator | |
| CN111649023B (en) | Buffering oil supplementing system and method for electro-hydraulic double-control motor driving rotation system | |
| CN201162738Y (en) | Energy-saving hydraulic control apparatus of variable rotation speed driving shield blade disc | |
| CN201696054U (en) | Closed-type hydraulic driving system with variable-speed variable-displacement combined control of shield cutter head | |
| CN105545882A (en) | Electro-hydraulic synchronous uniform loading cutter driving system of tunneling machine | |
| CN107882792A (en) | Unloading electromagnetic valve and loader dual-pump combining hydraulic system | |
| CN201407049Y (en) | Energy-saving shield cutterhead closed-loop hydraulic control system adopting grouped energy accumulator | |
| CN204533066U (en) | A kind of excavator swing arm potential energy hydraulic type energy-recuperation system | |
| CN201372799Y (en) | Hydraulic device for shield cutterhead | |
| CN201288568Y (en) | Shield cutter head hydraulic system employing motor series and parallel hybrid driving | |
| CN202148557U (en) | Hydraulic system of excavator | |
| CN201149009Y (en) | Double-closed type hydraulic system of exploration drill | |
| CN102108865B (en) | Hydraulic system of coal mining machine |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080109 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |