CN105864126A - TBM propelling supporting hydraulic system designed in energy-saving manner - Google Patents
TBM propelling supporting hydraulic system designed in energy-saving manner Download PDFInfo
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- CN105864126A CN105864126A CN201610349767.4A CN201610349767A CN105864126A CN 105864126 A CN105864126 A CN 105864126A CN 201610349767 A CN201610349767 A CN 201610349767A CN 105864126 A CN105864126 A CN 105864126A
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- 239000012530 fluid Substances 0.000 claims description 83
- 239000002828 fuel tank Substances 0.000 claims description 17
- 101100377706 Escherichia phage T5 A2.2 gene Proteins 0.000 claims description 4
- 238000005457 optimization Methods 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001141 propulsive effect Effects 0.000 description 2
- 206010030113 Oedema Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 244000052769 pathogen Species 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000009423 ventilation Methods 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
- F15B11/08—Servomotor systems without provision for follow-up action; Circuits therefor with only one servomotor
-
- 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
- F15B1/00—Installations or systems with accumulators; Supply reservoir or sump assemblies
- F15B1/02—Installations or systems with accumulators
-
- 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
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Fluid-Pressure Circuits (AREA)
Abstract
The invention discloses a TBM propelling supporting hydraulic system designed in an energy-saving manner. The TBM propelling supporting hydraulic system comprises an oil source system, a propelling system, a supporting system and an oil tank; the propelling system and the supporting system are connected with the oil tank through the oil source system; the propelling system is in parallel connection with the supporting system, and the oil source system, the propelling system, the supporting system and the oil tank are connected through a main oil path and a guide oil path; the guide oil path is provided with a load sensitive valve, a variable cylinder, a pressure switching valve and an energy accumulator to carry out supporting and propelling control; and a pump is arranged to supply oil to a supporting oil cylinder large cavity under the pressure cutting-off station, after supporting is completed, the energy accumulator carries out pressurizing, the pump is arranged to supply oil to the propelling oil cylinder under the load sensitive station, and energy-saving optimization of the propelling supporting system is achieved.
Description
Technical field
The present invention relates to TBM hydraulic system, the TBM particularly relating to a kind of energy-saving design advances support hydraulic pressure system
System.
Background technology
Complete-section tunnel boring machine (Tunnel Boring Machine), is called for short TBM, be collection machinery, electrically,
Hydraulic pressure, measure, the multidisciplinary technology such as control is in the large-scale tunnel excavation lining cutting outfit of one.TBM collection
The excavation of constructing tunnel, muck removal, preliminary bracing, dust removal by ventilation, lay tunnel path and edema due to wind pathogen electrically extends
In one, there is the advantages such as quick, high-quality, safety, be the most state-of-the-art major long tunnel construction at present
Mode.
TBM relies on support system to be withstood on by support boots on the wall of hole and realizes supporting, motor drive knife cutting ground,
Jacking forward under propulsion system effect, so propelling support hydraulic pressure system is one of key subsystem of TBM,
Accurately control its pressure is significant.Current construction type typically uses two Stress control (DR)
Under variable pump add hand adjustment air relief valve and be respectively propulsion system and support system fuel feeding, cylinder efficient pressure cannot
Regulation in real time, and owing to support system supporting & stablizing rear support oil cylinder no longer has change in displacement, support system supplies
The whole overflow of flow of oil pump is fallen, and brings substantial amounts of spill losses.
Existing energy-conservation propulsion system, such as " the shielding tunnel excavator joint of application number CN201110174588.9
Energy hydraulic propelling system ", and " the propelling oil-in side installation accumulation of energy of application number CN201110417659.3
The energy-conservation shield hydraulic propelling system of device " it is both for shield；Existing TBM advances in support hydraulic pressure system,
As application number CN201410615038.X " thrust and support force couple in real time regulation and control TBM advance support hydraulic pressure
System " do not consider the design of energy-saving.Therefore advance currently without a kind of TBM meeting energy-saving design and support
Hydraulic system.
Summary of the invention
The TBM that it is an object of the invention to provide a kind of energy-saving design advances support hydraulic pressure system, props up at support boots
During support, big for support cylinder cavity pressure being introduced Ioad-sensing control, regulation supports proportional pressure-reducing valve can be real-time
Control to support pressure；In support reversal valve being returned after completing to support, close the big chamber of support cylinder and rely on accumulation of energy
Device pressurize, and Ioad-sensing control object is switched to the big cavity pressure of propulsion cylinder, regulation advances proportional pressure-reducing valve
Propelling pressure can be controlled in real time.
The present invention solves its problem of technology and be the technical scheme is that
Including oil supply system, propulsion system, support system and fuel tank, propulsion system and support system through oil sources
System is connected with fuel tank, propulsion system and support system parallel join, oil supply system, propulsion system, support
Connected by working connection and guide's oil circuit between system and fuel tank.
As it is shown in figure 1, the solid line in figure represents that working connection, dotted line represent guide's oil circuit.
Described oil supply system includes motor, variable pump, pump relief valve and charge valve, motor link variable pump,
Variable delivery side of pump is connected with the first hydraulic fluid port of charge valve, and the 3rd hydraulic fluid port of charge valve connects pump relief valve
Entrance, the outlet of pump relief valve and the second hydraulic fluid port of charge valve are all connected with oil sump tank, and variable delivery side of pump divides
It is not connected with propulsion system and support system.
Described propulsion system include advance proportional pressure-reducing valve, advance three position four-way directional control valve, propelling cylinder group,
Shuttle valve and propelling relief valve；The entrance advancing proportional pressure-reducing valve is connected to the defeated of variable pump in described oil supply system
Go out end, advance the outlet of proportional pressure-reducing valve to advance the first hydraulic fluid port of three position four-way directional control valve, advance three
Second hydraulic fluid port of four-way change-over valve connects the second hydraulic fluid port of shuttle valve, the loculus of propelling cylinder group respectively, advances three
3rd hydraulic fluid port of position and four-way reversing valve connects the 3rd hydraulic fluid port of shuttle valve, the big chamber of propelling cylinder group, shuttle valve respectively
First hydraulic fluid port connect advance relief valve entrance, advance relief valve outlet and advance three position four-way directional control valve
The 4th hydraulic fluid port be all connected with oil sump tank.
Described support system includes: supports proportional pressure-reducing valve, support three position four-way directional control valve, fluid-control one-way
Valve, support safety valve, support cylinder, left support boots, right support boots, left support boots counterbalance valve and right support boots counterbalance valve；
The entrance supporting proportional pressure-reducing valve is connected with variable delivery side of pump in described oil supply system, supports ratio decompression
The outlet of valve advances the first hydraulic fluid port of three position four-way directional control valve, supports the second oil of three position four-way directional control valve
Mouth and the 3rd hydraulic fluid port connect the second hydraulic fluid port and first hydraulic fluid port of hydraulic control one-way valve, the 3rd of hydraulic control one-way valve respectively
Hydraulic fluid port is respectively communicated with big chamber and the entrance of support safety valve of support cylinder, and two piston rods of support cylinder divide
Not connecting left support boots and right support stretcher for boot and shoe tight hole wall, about support cylinder, two loculuses connect left support boots back pressure respectively
The entrance of valve and the entrance of right support boots counterbalance valve, the outlet of left support boots counterbalance valve, the outlet of right support boots counterbalance valve,
The outlet of support safety valve and the 4th hydraulic fluid port of support three position four-way directional control valve connect back to fuel tank.
Described hydraulic system also includes load-sensitive valve, variable cylinder, pressure switching valve and accumulator, such as Fig. 1
Dotted portion shown in, the left control port of load-sensitive valve and the second hydraulic fluid port, the loculus of variable cylinder all with become
Amount delivery side of pump connects, and the right control port of load-sensitive valve connects the first hydraulic fluid port of pressure switching valve, negative
Carrying the first hydraulic fluid port connection big chamber of variable cylinder of sensitive valve, the 3rd hydraulic fluid port of load-sensitive valve connects back to fuel tank, pressure
Second hydraulic fluid port of power switching valve and the 3rd hydraulic fluid port are respectively communicated with big chamber and the support of propelling cylinder group in propulsion system
The big chamber of support cylinder in system, accumulator is connected to the big chamber of support cylinder in support system, variable pump
Outfan is connected with entrance, the entrance of support proportional pressure-reducing valve of propelling proportional pressure-reducing valve respectively.
The present invention, compared with background technology, has the beneficial effect that
Support cylinder pressure is introduced Ioad-sensing control, relatively conventional pressure control variable pump, reduces
Support the restriction loss at air relief valve, and support force can be controlled in real time by supporting proportional pressure-reducing valve；
Utilizing accumulator and non-continuous fuel feeding keeps the support pressure preset, system can fill a set of oil sources system less
System, reduces cost, and eliminates corresponding loss；
After completing to support, Ioad-sensing control is switched to propulsion system, reduces the joint advanced at air relief valve
Stream loss, and can regulate advance proportional pressure-reducing valve to control propulsive force in real time in conjunction with current support force.
Accompanying drawing explanation
Fig. 1 is the oil circuit figure of present hydraulic system.
In figure: 1, motor, 2, variable pump, 2.1, variable cylinder, 2.2, load-sensitive valve, 3, pressure cuts
Change valve, 4.1, pump relief valve, 4.2, advance relief valve, 4.3, support safety valve, 4.4, left support boots back pressure
Valve, 4.5, right support boots counterbalance valve, 5, charge valve, 6.1, advance proportional pressure-reducing valve, 6.2, support ratio subtracts
Pressure valve, 7.1, advance three position four-way directional control valve, 7.2, support three position four-way directional control valve, 8, propelling cylinder group,
9, shuttle valve, 10, hydraulic control one-way valve, 11, accumulator, 12, support cylinder, 13.1, left support boots, 13.2,
Right support boots.
Detailed description of the invention
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As it is shown in figure 1, the present invention includes oil supply system, propulsion system and support system；Oil sources includes: electricity
Machine 1, variable pump 2, variable cylinder 2.1, load-sensitive valve 2.2, pressure switching valve 3, pump relief valve 4.1 and
Charge valve 5, propulsion system includes: advances proportional pressure-reducing valve 6.1, advance three position four-way directional control valve 7.1, propelling
Oil cylinder group 8, shuttle valve 9 and propelling relief valve 4.2；Support system includes: supports proportional pressure-reducing valve 6.2, support
Three position four-way directional control valve 7.2, hydraulic control one-way valve 10, support safety valve 4.3, accumulator 11, support cylinder
12, left support boots 13.1, right support boots 13.2, left support boots counterbalance valve 4.4, right support boots counterbalance valve 4.5.
In oil supply system, motor 1 link variable pump 2, the high pressure P2 of variable pump 2 respectively with variable cylinder 2.1
Loculus, the left control port x1 and the second hydraulic fluid port A2.2 of load-sensitive valve 2.2, charge valve 5 first oil
Mouth P5, the entrance A6.1 of propelling proportional pressure-reducing valve 6.1, the entrance A6.2 of support proportional pressure-reducing valve 6.2 connect,
The right control port x2 of load-sensitive valve 2.2 connects the first hydraulic fluid port P3, the first hydraulic fluid port P2.2 of pressure switching valve 3
The connection big chamber of variable cylinder 2.1, the second hydraulic fluid port A3 of pressure switching valve 3 and the 3rd hydraulic fluid port B3 is respectively communicated with and pushes away
Enter the big chamber of support cylinder 12, the of charge valve 5 in the big chamber of propelling cylinder group 8 in system and support system
Three hydraulic fluid port B5 connect the entrance P4.1 of pump relief valve 4.1, the outlet T4.1 of pump relief valve 4.1, load-sensitive
3rd hydraulic fluid port B2.2 of valve 2.2, the second hydraulic fluid port A5 of charge valve 5 are linked back fuel tank.
In propulsion system, the outlet B6.1 connection of proportional pressure-reducing valve 6.1 is advanced to advance three position four-way directional control valve 7.1
The first hydraulic fluid port P7.1, advance three position four-way directional control valve 7.1 the second hydraulic fluid port A7.1 and the 3rd hydraulic fluid port B7.1 divide
Do not connect the second hydraulic fluid port A9 and the 3rd hydraulic fluid port B9 of shuttle valve, the loculus of propelling cylinder group 8 and big chamber, shuttle valve 9
First hydraulic fluid port P9 connect advance relief valve 4.2 entrance P4.2, advance relief valve 4.2 outlet T4.2 and
The 4th hydraulic fluid port T7.1 advancing three position four-way directional control valve 7.1 takes back fuel tank.
In support system, the outlet B6.2 connection supporting proportional pressure-reducing valve 6.1 advances three position four-way directional control valve 7.2
The first hydraulic fluid port P7.2, support three position four-way directional control valve 7.2 the second hydraulic fluid port A7.2 and the 3rd hydraulic fluid port B7.2 divide
Lian Jie the second hydraulic fluid port A10 of hydraulic control one-way valve 10 and the first hydraulic fluid port P10, the 3rd of hydraulic control one-way valve 10
Hydraulic fluid port B10 is respectively communicated with the entrance P4.3 of the big chamber of support cylinder 12, accumulator 11, support safety valve 4.3,
Two piston rods of support cylinder 12 connect left support boots 13.1 and right support boots 13.2 stretching hole wall respectively, support
Two, the left and right of oil cylinder 12 loculus connects the entrance P4.4 of left support boots counterbalance valve 4.4 and right support boots counterbalance valve respectively
The entrance P4.5 of 4.5, the outlet T4.4 of left support boots counterbalance valve 4.4, the outlet T4.5 of right support boots counterbalance valve 4.5,
Support safety valve 4.3 exports T4.3, the 4th hydraulic fluid port T7.2 of support three position four-way directional control valve 7.2 takes back fuel tank.
The operation principle of the present invention is as follows:
During as it is shown in figure 1, system does not works, three position four-way directional control valve 7.1 and 7.2 is positioned at middle position, two-position three way
Reversal valve 2.2,3,5 is all located at spring position.In motor 1 start-up course, it is upper through charge valve 5 that pump 2 exports P2, by
P5 mouth leads to fuel tank to A5 mouth, it is achieved the No Load Start of pump 2.Pump 2 has started rear charge valve 5 and has obtained electric, pump 2
High pressure hydraulic fluid port P2 is the next through charge valve 5, by P5 mouth to B5 mouth, sets up pressure through relief valve 4.1 overflow.Now
Control port x2 no pressure on the right side of load-sensitive valve 2.2, load-sensitive valve 2.2 is operated in left position, P2 mouth pressure warp
A2.2 hydraulic fluid port flows into the big chamber of variable cylinder 2.1 to P2.2 hydraulic fluid port, and variable cylinder 2.1 piston moves left to spacing, variable pump 2
It is operated in minimum injection rate overflow.
During TBM work, first carrying out supportting boots and support, pump 2 exports the fluid of P2 through supporting proportional pressure-reducing valve 6.2
A6.2 mouth enter the first hydraulic fluid port P7.2 supporting three position four-way directional control valve 7.2 to B6.2 mouth, and by the second hydraulic fluid port
A7.2 flows out, and through the A10 hydraulic fluid port of hydraulic control one-way valve 10, B10 hydraulic fluid port flows into big chamber and the accumulation of energy of support cylinder 12
Device 11.The pump 2 being now operated in minimum injection rate exports the flow that P2 cannot provide enough, load-sensitive valve 2.2
Control port pressure reduction in left and right is less than spring setting value, and load-sensitive valve 2.2 is operated in right position, the big chamber of variable cylinder 2.1
Flowing back to fuel tank through P2.2 to the B2.2 of load-sensitive valve 2.2, pump 2 discharge capacity increases.Reduced pressure by regulation support ratio
Valve 6.2 can set support force, and the big cavity pressure of support cylinder 12 is oily to P3 through the B3 hydraulic fluid port of pressure switching valve 3
Mouthful, act on the x2 control port of load-sensitive valve 2.2, it is achieved the Ioad-sensing control to support pressure, i.e.
The high spring preset value of only big than support cylinder 12 cavity pressure of the P2 mouth pressure of pump 2 during support, and do not have
Spill losses.After the big cavity pressure of support cylinder 12 reaches the setting value of support proportional pressure-reducing valve 6.2, left and right
The support complete stretching of boots 13.1 and 13.2 is on the wall of hole, and support process completes, and the flow that now pump 2 provides exceedes
System requirements, load-sensitive valve about 2.2 control port pressure reduction is more than spring setting value, load-sensitive valve 2.2 work
Making in left position, P2 mouth pressure flows into the big chamber of variable cylinder 2.1 through A2.2 hydraulic fluid port to P2.2 hydraulic fluid port, and variable cylinder 2.1 is lived
Plug moves to left, and variable pump 2 is operated in smaller displacement.Relief valve 4.3 prevents the big cavity pressure of support cylinder 12 from transfiniting, left,
Right support boots counterbalance valve 4.4 and 4.5 sets the back pressure of support cylinder about 12 loculus respectively, prevents the excessive pressure of support force
Break through an encirclement rock.
After system detects that support completes, in three position four-way directional control valve 7.2 times, hydraulic control one-way valve 10 is closed and is supported
The big chamber of oil cylinder 12, accumulator 11 assists to realize the big chamber pressurize of support cylinder 12.Simultaneously advance system starts,
Pump 2 exports the fluid of P2 and changes through advancing the A6.1 mouth of proportional pressure-reducing valve 6.1 to enter propelling 3-position 4-way to B6.1 mouth
To the first hydraulic fluid port P7.1 of valve 7.1, and by the big chamber of the 3rd hydraulic fluid port B7.1 inflow propelling cylinder group 8, propelling cylinder
The loculus fluid of group 8 flows through T7.1 to fuel tank through advancing the second hydraulic fluid port A7.1 of three position four-way directional control valve 7.1.Shuttle valve
Gather propelling cylinder group 8 size cavity pressure and higher side the first hydraulic fluid port P9 is led to propelling relief valve 4.2
Entrance P4.2 is as safe pressure limiting.Pressure switching valve 3 obtains electric, and the big chamber of propelling cylinder group 8 is made through B3 mouth to P3 mouth
X2 control port for load-sensitive valve 2.2, it is achieved the Ioad-sensing control to propelling pressure, is i.e. advanced over
During i.e. supporting in journey, only high than the big cavity pressure of propelling cylinder group 8 spring of P2 mouth pressure of pump 2 is preset
Value, and there is no spill losses.For analyzing native system, difference is advanced the adaptability of load behavior, to tunnel ground
As a example by qualitative change is soft, when under front pump 2 discharge capacity, the big cavity pressure of propelling cylinder group 8 not up to advances proportional pressure-reducing valve 6.1 pre-
If value, load-sensitive valve about 2.2 control port pressure reduction is less than spring setting value, and load-sensitive valve 2.2 is operated in
Right position, the big chamber of variable cylinder 2.1 is flowed back to fuel tank, the increase of pump 2 discharge capacity through P2.2 to the B2.2 of load-sensitive valve 2.2, is pushed away
Enter speed to increase, so that propelling pressure returns to setting value.
From implementation process, the present invention can control support force and propulsive force in real time, fill a set of oil supply system less,
Reduce cost, and eliminate corresponding loss, reduce the restriction loss supporting and advancing at air relief valve.
Claims (5)
1. an energy-saving design TBM advance support hydraulic pressure system, it is characterised in that: include oil supply system,
Propulsion system, support system and fuel tank, propulsion system and support system are connected with fuel tank through oil supply system, push away
Enter system and support system parallel join, pass through between oil supply system, propulsion system, support system and fuel tank
Working connection and guide's oil circuit connect.
The TBM of a kind of energy-saving design the most according to claim 1 advances support hydraulic pressure system, and it is special
Levy and be: described oil supply system includes motor (1), variable pump (2), pump relief valve (4.1) and charge valve (5),
Motor (1) link variable pump (2), the outfan (P2) of variable pump (2) is connected with first hydraulic fluid port (P5) of charge valve (5),
3rd hydraulic fluid port (B5) of charge valve (5) connects the entrance (P4.1) of pump relief valve (4.1), the outlet of pump relief valve (4.1)
(T4.1) and second hydraulic fluid port (A5) of charge valve (5) is all connected with oil sump tank, the outfan (P2) of variable pump (2) respectively with
Propulsion system and support system connect.
The TBM of a kind of energy-saving design the most according to claim 2 advances support hydraulic pressure system, and it is special
Levy and be: described propulsion system include advance proportional pressure-reducing valve (6.1), advance three position four-way directional control valve (7.1),
Propelling cylinder group (8), shuttle valve (9) and propelling relief valve (4.2)；Advance the entrance (A6.1) of proportional pressure-reducing valve (6.1)
It is connected to the outfan (P2) of variable pump (2) in described oil supply system, advances the outlet of proportional pressure-reducing valve (6.1)
(B6.1) connection advances first hydraulic fluid port (P7.1) of three position four-way directional control valve (7.1), advances three position four-way directional control valve (7.1)
The second hydraulic fluid port (A7.1) connect second hydraulic fluid port (A9) of shuttle valve, the loculus of propelling cylinder group (8) respectively, advance three
3rd hydraulic fluid port (B7.1) of position and four-way reversing valve (7.1) connects the 3rd hydraulic fluid port (B9) of shuttle valve, propelling cylinder group respectively
(8) big chamber, first hydraulic fluid port (P9) of shuttle valve (9) connects the entrance (P4.2) advancing relief valve (4.2), advances safety
The outlet (T4.2) of valve (4.2) and the 4th hydraulic fluid port (T7.1) of propelling three position four-way directional control valve (7.1) are all connected with oil sump tank.
The TBM of a kind of energy-saving design the most according to claim 2 advances support hydraulic pressure system, and it is special
Levy and be: described support system includes: support proportional pressure-reducing valve (6.2), support three position four-way directional control valve (7.2),
Hydraulic control one-way valve (10), support safety valve (4.3), support cylinder (12), left support boots (13.1), right support boots (13.2),
Left support boots counterbalance valve (4.4) and right support boots counterbalance valve (4.5)；Support entrance (A6.2) and the institute of proportional pressure-reducing valve (6.2)
The outfan (P2) stating variable pump in oil supply system (2) connects, and supports the outlet (B6.2) of proportional pressure-reducing valve (6.1) even
Logical the first hydraulic fluid port (P7.2) advancing three position four-way directional control valve (7.2), supports the second of three position four-way directional control valve (7.2)
Hydraulic fluid port (A7.2) and the 3rd hydraulic fluid port (B7.2) connect the second hydraulic fluid port (A10) and first oil of hydraulic control one-way valve (10) respectively
Mouth (P10), the 3rd hydraulic fluid port (B10) of hydraulic control one-way valve (10) is respectively communicated with the big chamber of support cylinder (12) and supports peace
The entrance (P4.3) of full valve (4.3), two piston rods of support cylinder (12) connect left support boots (13.1) and right support respectively
Boots (13.2), two loculuses in support cylinder (12) left and right connect respectively left support boots counterbalance valve (4.4) entrance (P4.4) and
The entrance (P4.5) of right support boots counterbalance valve (4.5), the outlet (T4.4) of left support boots counterbalance valve (4.4), right support boots counterbalance valve
(4.5) outlet (T4.5), the outlet (T4.3) of support safety valve (4.3) and support the of three position four-way directional control valve (7.2)
Four hydraulic fluid ports (T7.2) connect back to fuel tank.
The TBM of a kind of energy-saving design the most according to claim 1 advances support hydraulic pressure system, and it is special
Levy and be: described hydraulic system also include load-sensitive valve (2.2), variable cylinder (2.1), pressure switching valve (3) and
Accumulator (11), the left control port (x1) of load-sensitive valve (2.2) and the second hydraulic fluid port (A2.2), variable cylinder (2.1)
Loculus be all connected with the outfan (P2) of variable pump (2), the right control port (x2) of load-sensitive valve (2.2) connects
First hydraulic fluid port (P3) of pressure switching valve (3), first hydraulic fluid port (P2.2) connection variable cylinder (2.1) of load-sensitive valve (2.2)
Big chamber, the 3rd hydraulic fluid port (B2.2) of load-sensitive valve (2.2) connects back to fuel tank, the second hydraulic fluid port of pressure switching valve (3)
(A3) it is respectively communicated with in the big chamber of propelling cylinder group (8) in propulsion system and support system with the 3rd hydraulic fluid port (B3)
The big chamber of support oil cylinder (12), accumulator (11) is connected to the big chamber of support cylinder in support system (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610349767.4A CN105864126B (en) | 2016-05-24 | 2016-05-24 | A kind of TBM of energy-saving design promotes support hydraulic pressure system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610349767.4A CN105864126B (en) | 2016-05-24 | 2016-05-24 | A kind of TBM of energy-saving design promotes support hydraulic pressure system |
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| CN105864126A true CN105864126A (en) | 2016-08-17 |
| CN105864126B CN105864126B (en) | 2018-02-09 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762884A (en) * | 2017-03-13 | 2017-05-31 | 浙江大学 | Based on the vertical tuning hydraulic systems of pressure compensated TBM |
| CN107725506A (en) * | 2017-10-23 | 2018-02-23 | 天津世仓工业设备有限公司 | A kind of numerical control press electrohydraulic servo-controlling system |
| CN109441475A (en) * | 2018-12-25 | 2019-03-08 | 中铁隧道局集团有限公司 | A kind of anti-skidding detection automatic processing device of support boots and its detection processing method |
| CN109944841A (en) * | 2019-04-23 | 2019-06-28 | 中铁工程装备集团有限公司 | The multiple groups of annular support boots are associated with the autonomous oil-supplementing system of oil-tank floating |
| CN111120456A (en) * | 2019-12-30 | 2020-05-08 | 浙江大学 | Material increase manufacturing hydraulic flow channel on-way pressure loss testing device |
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| CN111828406A (en) * | 2020-06-19 | 2020-10-27 | 浙江大学 | Efficient and energy-saving TBM horizontal posture adjustment hydraulic system |
| CN111828406B (en) * | 2020-06-19 | 2021-06-22 | 浙江大学 | Efficient and energy-saving TBM horizontal posture adjustment hydraulic system |
| CN115681226A (en) * | 2022-11-03 | 2023-02-03 | 北京科技大学 | Shaft heading machine supports experimental hydraulic system |
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