CN109538558A - A kind of symmetrical hydraulic cylinder series connection propulsion system of shield excavation machine double piston-rod - Google Patents
A kind of symmetrical hydraulic cylinder series connection propulsion system of shield excavation machine double piston-rod Download PDFInfo
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- CN109538558A CN109538558A CN201811509174.5A CN201811509174A CN109538558A CN 109538558 A CN109538558 A CN 109538558A CN 201811509174 A CN201811509174 A CN 201811509174A CN 109538558 A CN109538558 A CN 109538558A
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- hydraulic cylinder
- oil
- fluid port
- hydraulic
- propulsion system
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 19
- 238000006073 displacement reaction Methods 0.000 claims abstract description 32
- 239000012530 fluid Substances 0.000 claims abstract description 28
- 239000002828 fuel tank Substances 0.000 claims description 11
- 239000007788 liquid Substances 0.000 claims description 9
- 239000003921 oil Substances 0.000 description 64
- 239000010720 hydraulic oil Substances 0.000 description 11
- 238000000034 method Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000010727 cylinder oil Substances 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000001141 propulsive effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000010729 system oil Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/22—Synchronisation of the movement of two or more servomotors
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/093—Control of the driving shield, e.g. of the hydraulic advancing cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/02—Systems essentially incorporating special features for controlling the speed or actuating force of an output member
- F15B11/04—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed
- F15B11/042—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in"
- F15B11/0423—Systems essentially incorporating special features for controlling the speed or actuating force of an output member for controlling the speed by means in the feed line, i.e. "meter in" by controlling pump output or bypass, other than to maintain constant speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
- F15B11/17—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors using two or more pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/024—Pressure relief valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B13/00—Details of servomotor systems ; Valves for servomotor systems
- F15B13/02—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors
- F15B13/06—Fluid distribution or supply devices characterised by their adaptation to the control of servomotors for use with two or more servomotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B20/00—Safety arrangements for fluid actuator systems; Applications of safety devices in fluid actuator systems; Emergency measures for fluid actuator systems
- F15B20/005—Leakage; Spillage; Hose burst
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B21/00—Common features of fluid actuator systems; Fluid-pressure actuator systems or details thereof, not covered by any other group of this subclass
- F15B21/005—Filling or draining of fluid systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/20507—Type of prime mover
- F15B2211/20515—Electric motor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/205—Systems with pumps
- F15B2211/2053—Type of pump
- F15B2211/20538—Type of pump constant capacity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/255—Flow control functions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/20—Fluid pressure source, e.g. accumulator or variable axial piston pump
- F15B2211/275—Control of the prime mover, e.g. hydraulic control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B2211/00—Circuits for servomotor systems
- F15B2211/80—Other types of control related to particular problems or conditions
- F15B2211/88—Control measures for saving energy
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
A kind of symmetrical hydraulic cylinder of shield excavation machine double piston-rod is connected in series propulsion system and is mainly made of the identical subregion propulsion system of several structures, each subregion propulsion system includes a servo motor, one constant displacement pump, one safety valve and the symmetrical hydraulic cylinder of the identical double piston-rod of several structures etc., the output shaft of servo motor and the input shaft rigid attachment of constant displacement pump, the left end hydraulic fluid port of constant displacement pump and the left end hydraulic fluid port of the first hydraulic cylinder, the oil inlet of safety valve connects, right end hydraulic fluid port is connect with the right end hydraulic fluid port of third hydraulic cylinder, first, second, oil circuit between third hydraulic cylinder is connected in series, each subregion advancing hydraulic pressure oil cylinder of the present invention is easily achieved synchronously control, the hydraulic circuit of each propulsion system is mutually indepedent, it both can independent control, energy coordinated control again, increase the flexibility of system control；Using the direct drive type volume speed-regulating system of pump control cylinder, energy saving of system is significant.
Description
Technical field
The present invention relates to a kind of shield excavation machine hydraulic propelling systems, belong to hydraulic transmission technology field.
Background technique
Shield excavation machine be it is a kind of be exclusively used in underground tunnel project construction integrate the technologies such as mechanical, electrical, liquid, be a kind of
The typical integrated equipment of multisystem complexity mechanical electronic hydraulic, can be realized mechanization, the automation of tunnel excavation.The liquid of shield excavation machine
Pressure propulsion system provides motive force for shield advance, usually by completing along the circumferentially distributed certain amount hydraulic cylinder of shield,
Ask propulsion system to be not only able to achieve the propulsion of multi-cylinder precise synchronization, and each grouping hydraulic cylinder can be controlled separately with meet curve driving,
Independent rollback when correction and pipe sheet assembling etc. requires, while the pressure of propulsion system and flow must be real-time continuous adjustable, really
Reasonable propulsive force and speed are protected, tunneling process earth pressure balance is maintained.
Shield driving is a kind of typical high-power, heavy load operating condition, and the installed power of propulsion system is very big, and energy consumption is very
It is high.Existing propulsion hydraulic system uses valve control mode, and not only restriction loss is big, wastes energy, affects equipment life, and
It is degrading construction environment, brings many unfavorable factors.Therefore, how to ensure that propulsion system correctly efficiently completes driving task
In the case of, realize that synchronism and Energy Saving Control between hydraulic propelling system hydraulic cylinder are a key technologies in shield driving
Problem.
Summary of the invention
It is an object of the invention to solve the problems, such as in background technique that shield driving process is taken into account to meet shield and apply
Work requirement provides a kind of energy-saving type shield advancing hydraulic pressure system of direct drive type volume speed regulation driven using servo motor and constant displacement pump
The oil circuit of system, each symmetric double hydraulic piston rod oil cylinder is connected in series, and has not only been able to achieve the synchronously control of each subregion propelling hydraulic cylinder, but also
System energy loss can be greatly reduced, be very suitable to shield propelling system control.
The present invention solves the technical solution that its technical problem is taken:
A kind of symmetrical hydraulic cylinder series connection propulsion system of shield excavation machine double piston-rod, including identical point of several structures
Area's propulsion system, each subregion propulsion system include servo motor, constant displacement pump, safety valve, the first hydraulic cylinder, the second hydraulic oil
Cylinder, third hydraulic cylinder, check valve, slippage pump, motor, fuel tank etc.；The output shaft of servo motor and the input shaft of constant displacement pump are rigid
Property connection, the left end hydraulic fluid port of constant displacement pump connected with the oil inlet of the left end hydraulic fluid port of the first hydraulic cylinder, safety valve respectively by oil pipe
It connects, the right end hydraulic fluid port of constant displacement pump is connect by oil pipe with the right end hydraulic fluid port of third hydraulic cylinder, the right end oil of the first hydraulic cylinder
Mouth is connect by oil pipe with the left end hydraulic fluid port of the second hydraulic cylinder, and the right end hydraulic fluid port of the second hydraulic cylinder passes through oil pipe and third liquid
The left end hydraulic fluid port of compressing cylinder connects；The oil outlet of safety valve is connect by oil pipe with fuel tank；The oil inlet of slippage pump passes through oil pipe
It is connect with fuel tank, the oil outlet of slippage pump is connected by the oil inlet of oil pipe and check valve, and the oil outlet of check valve passes through oil pipe
It is connected on oil pipe；The input shaft and motor rigid attachment of slippage pump；First hydraulic cylinder, the second hydraulic cylinder, third are hydraulic
Oil cylinder is the symmetrical hydraulic cylinder of the identical double piston-rod of several structures.
A kind of symmetrical hydraulic cylinder of shield excavation machine double piston-rod is connected in series propulsion system and is provided with four points
Area.
Compared with prior art, the present invention generated beneficial effect is:
The hydraulic cylinder oil circuit of each area's propulsion system is connected in series, it is easy to accomplish the synchronously control of each subregion advancing hydraulic pressure oil cylinder；
And the hydraulic circuit of each propulsion system is mutually indepedent, and therefore, each Qu Jike independent control of propulsion system, and energy coordinated control, increase
The flexibility for having added system to control；The speed control system with adjustable displacement of advancing hydraulic pressure oil cylinder is directly driven using servo motor and constant displacement pump,
Energy loss is small, obvious energy conservation；Each subregion of propulsion system uses independent oil sources, can be pumped with small displacement and replace traditional propulsion system
In large discharge pump, each area's hydraulic oil source only exports the pressure oil being adapted with local area operating pressure, and system is more energy saving.
Detailed description of the invention
Fig. 1 is a kind of single area's schematic diagram of symmetrical hydraulic cylinder series connection propulsion system of shield excavation machine double piston-rod.
Fig. 2 is a kind of symmetrical hydraulic cylinder series connection propulsion system hydraulic cylinder subregion of shield excavation machine double piston-rod
Schematic diagram.
In figure: 1. servo motors, 2. constant displacement pumps, 3,4,7,9,11,12,14,17. oil pipes, 5. safety valves, 6. first is hydraulic
Oil cylinder, 8. second hydraulic cylinders, 10. third hydraulic cylinders, 13. check valves, 15. slippage pumps, 16. motors, 18. fuel tanks.
Specific embodiment
With reference to the accompanying drawing 1 and embodiment the present invention is further described.
As shown in Figure 1, the present invention includes the identical subregion propulsion system of several structures, each constant displacement pump is as corresponding point
The independent oil sources of area's propulsion system provides power, the liquid of the hydraulic circuit of each subregion propulsion system and other subregion propulsion systems
Pushing back road is mutually independent hydraulic circuit；Each subregion propulsion system includes servo motor 1, constant displacement pump 2, safety valve 5,
One hydraulic cylinder 6, the second hydraulic cylinder 8, third hydraulic cylinder 10, check valve 13, slippage pump 15, motor 16 etc. are constituted；Servo
The input shaft rigid attachment of the output shaft of motor 1 and constant displacement pump 2, the left end hydraulic fluid port of constant displacement pump 2 by oil pipe 3 respectively with the first liquid
The oil inlet connection of the left end hydraulic fluid port, safety valve 5 of compressing cylinder 6, the right end hydraulic fluid port of constant displacement pump 2 pass through oil pipe 11 and third hydraulic oil
The right end hydraulic fluid port of cylinder 10 connects, and the right end hydraulic fluid port of the first hydraulic cylinder 6 passes through the left end hydraulic fluid port of oil pipe 7 and the second hydraulic cylinder 8
The right end hydraulic fluid port of connection, the second hydraulic cylinder 8 is connect by oil pipe 9 with the left end hydraulic fluid port of third hydraulic cylinder 10；Safety valve 5
Oil outlet is connect by oil pipe 4 with fuel tank 18；The oil inlet of slippage pump 15 is connect by oil pipe 17 with fuel tank 18, slippage pump 15
Oil outlet is connect by oil pipe 12 with the oil inlet of check valve 13, and the oil outlet of check valve 13 is connected to oil pipe 11 by oil pipe 14
On；The input shaft and 16 rigid attachment of motor of slippage pump 15；First hydraulic cylinder 6, the second hydraulic cylinder 8, third hydraulic cylinder
10 be the symmetrical hydraulic cylinder of the identical double piston-rod of structure.
Four subregion propulsion systems are arranged in the present embodiment, and each subregion propulsion system has independent hydraulic circuit.
Working principle of the present invention is as follows:
When shield excavation machine is pushed ahead, the servo motor 1 of each subregion propulsion system must be electrically activated, and driving constant displacement pump 2 is positive
Rotation, for constant displacement pump 2 by right chamber oil suction of the oil pipe 11 from third hydraulic cylinder 10, the pressure oil that constant displacement pump 2 exports passes through oil pipe 3
Into the left chamber of the first hydraulic cylinder 6, the piston of the first hydraulic cylinder 6 is pushed to move right, meanwhile, the first hydraulic cylinder 6 is right
Hydraulic oil in chamber enters the left chamber of the second hydraulic cylinder 8 by oil pipe 7, and the piston of the second hydraulic cylinder 8 is pushed to move right,
Hydraulic oil in second hydraulic cylinder, 8 right chamber enters the left chamber of third hydraulic cylinder 10 by oil pipe 9, pushes third hydraulic cylinder
10 piston moves right, since the first hydraulic cylinder 6, the second hydraulic cylinder 8, third hydraulic cylinder 10 are that structure is identical symmetrical
Double rod cylinder, to push the piston rod of the first hydraulic cylinder 6, the second hydraulic cylinder 8, third hydraulic cylinder 10 synchronous
Advance.
When occurring abnormal conditions in progradation leads to system pressure beyond normal value, safety valve 5 is opened, constant displacement pump 2
The oil liquid of outflow flows back to fuel tank through oil pipe 3, safety valve 5 and oil pipe 4, realizes off-load.
Since the pipeline between the first hydraulic cylinder 6, the second hydraulic cylinder 8, third hydraulic cylinder 10 is connected in series, realize
Each hydraulic cylinder piston rod moves synchronously in subregion；Since servo motor is easily achieved synchronously control, each subregion pushes away
It can be achieved with moving synchronously by controlling each servo motor 1 between system.
In shield excavation machine progradation, only need the input current size of separately adjustable each subregion servo motor 1 can
Change the flow of constant displacement pump, so that shield excavation machine turning or posture tune can be realized in the fltting speed for controlling local area hydraulic cylinder
It is whole.
As shown in Fig. 2,12 hydraulic cylinders are arranged in this propulsion hydraulic system altogether, divide in shield excavation machine cross-wise direction
For 4th area A, B, C, D, four area's hydraulic cylinder quantity are in circumferencial direction mean allocation, 3, every area hydraulic cylinder.
When advancing hydraulic pressure oil cylinder retracts, the servo motor 1 of each subregion propulsion system is reversely rotated, and driving constant displacement pump 2 is anti-
To rotation, for constant displacement pump 2 by left chamber oil suction of the oil pipe 3 from the first hydraulic cylinder 6, the pressure oil that constant displacement pump 2 exports enters third
The right chamber of hydraulic cylinder 10 pushes the piston of third hydraulic cylinder 10 to be moved to the left, meanwhile, in 10 left chamber of third hydraulic cylinder
Hydraulic oil enters the right chamber of the second hydraulic cylinder 8 by oil pipe 9, pushes the piston of the second hydraulic cylinder 8 to be moved to the left, the second liquid
Hydraulic oil in 8 left chamber of compressing cylinder enters the right chamber of the first hydraulic cylinder 6 by oil pipe 7, pushes the piston of the first hydraulic cylinder 6
It is moved to the left, so that the piston rod of the first hydraulic cylinder 6 of realization, the second hydraulic cylinder 8, third hydraulic cylinder 10 is synchronized and retracted.
When each subregion advancing hydraulic pressure oil cylinder need to individually retract, separately adjustable each 1 input current of subregion servo motor is only needed
Size, the input current for the servo motor corresponding to hydraulic cylinder that do not retract, which is set as zero, can be realized.
When shield excavation machine propulsion system stops working, zero is set by 1 input current of servo motor, constant displacement pump 2 is defeated
Outflow is zero, hydraulic cylinder stop motion.
When shield excavation machine propulsion hydraulic system oil liquid leaks, hydraulic oil is supplemented from feed circuit to system, is mended
Oil pump 15 is supplemented by oil pipe 12, check valve 13, oil pipe 14 into oil pipe 11 hydraulic by the oil suction from fuel tank 18 of oil pipe 17
Oil.
The present invention uses the direct drive type volume speed-regulating system of hydraulic pump control hydraulic cylinder, and without restriction loss, energy saving of system is aobvious
It writes；Each subregion of propulsion system provides oil sources power using independent hydraulic pump, pumps substitution large discharge pump, each area's hydraulic oil with small displacement
Source only exports the pressure oil being adapted with local area operating pressure, and system is more energy saving.
Claims (2)
1. a kind of symmetrical hydraulic cylinder series connection propulsion system of shield excavation machine double piston-rod, including several structures are identical
Subregion propulsion system, each subregion propulsion system include servo motor (1), constant displacement pump (2), oil pipe (3,4,7,9,11,12,14,
17), safety valve (5), the first hydraulic cylinder (6), the second hydraulic cylinder (8), third hydraulic cylinder (10), check valve (13), benefit
Oil pump (15), motor (16), fuel tank (18)；It is characterized by: the input shaft of the output shaft of servo motor (1) and constant displacement pump (2)
Rigid attachment, the left end hydraulic fluid port of constant displacement pump (2) pass through oil pipe (3) left end hydraulic fluid port, safety valve with the first hydraulic cylinder (6) respectively
(5) the right end hydraulic fluid port of oil inlet connection, constant displacement pump (2) is connected by the right end hydraulic fluid port of oil pipe (11) and third hydraulic cylinder (10)
It connects, the right end hydraulic fluid port of the first hydraulic cylinder (6) is connect by oil pipe (7) with the left end hydraulic fluid port of the second hydraulic cylinder (8), the second liquid
The right end hydraulic fluid port of compressing cylinder (8) is connect by oil pipe (9) with the left end hydraulic fluid port of third hydraulic cylinder (10)；Safety valve (5) goes out
Hydraulic fluid port is connect by oil pipe (4) with fuel tank (18)；The oil inlet of slippage pump (15) is connect by oil pipe (17) with fuel tank (18), is mended
The oil outlet of oil pump (15) is connect by oil pipe (12) with the oil inlet of check valve (13), and the oil outlet of check valve (13) passes through oil
Pipe (14) is connected on oil pipe (11)；The input shaft and motor (16) rigid attachment of slippage pump (15)；First hydraulic cylinder (6),
Second hydraulic cylinder (8), third hydraulic cylinder (10) are the symmetrical hydraulic cylinder of the identical double piston-rod of several structures.
2. propulsion system is connected in series in the symmetrical hydraulic cylinder of a kind of shield excavation machine double piston-rod according to claim 1,
It is characterized by: each subregion propulsion system directly drives the volumetric speed control of advancing hydraulic pressure oil cylinder using servo motor and constant displacement pump
System.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811509174.5A CN109538558A (en) | 2018-12-11 | 2018-12-11 | A kind of symmetrical hydraulic cylinder series connection propulsion system of shield excavation machine double piston-rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811509174.5A CN109538558A (en) | 2018-12-11 | 2018-12-11 | A kind of symmetrical hydraulic cylinder series connection propulsion system of shield excavation machine double piston-rod |
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| Publication Number | Publication Date |
|---|---|
| CN109538558A true CN109538558A (en) | 2019-03-29 |
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|---|---|---|---|
| CN201811509174.5A Pending CN109538558A (en) | 2018-12-11 | 2018-12-11 | A kind of symmetrical hydraulic cylinder series connection propulsion system of shield excavation machine double piston-rod |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112141312A (en) * | 2020-09-25 | 2020-12-29 | 山东交通学院 | Steering engine control method capable of accurately and quickly reaching laying position of underwater robot |
| CN113090610A (en) * | 2021-03-12 | 2021-07-09 | 上海卫星工程研究所 | Surface mount type piezoelectric screw pump hydraulic linear actuator and driving method thereof |
| CN113294397A (en) * | 2021-04-13 | 2021-08-24 | 中铁工程装备集团有限公司 | Pipe piece crane and shield machine |
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