CN206360953U - A kind of electro-hydraulic propulsion system of TBM variable speeds variable-displacement pump control - Google Patents
A kind of electro-hydraulic propulsion system of TBM variable speeds variable-displacement pump control Download PDFInfo
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- CN206360953U CN206360953U CN201621432108.9U CN201621432108U CN206360953U CN 206360953 U CN206360953 U CN 206360953U CN 201621432108 U CN201621432108 U CN 201621432108U CN 206360953 U CN206360953 U CN 206360953U
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Abstract
The utility model discloses a kind of electro-hydraulic propulsion system of TBM variable speeds variable-displacement pump control.Variable-frequency motor becomes displacement hydraulic pump and variable-frequency motor low pressure huge discharge hydraulic pump as the flow and pressure output of control system, variable-frequency motor becomes displacement hydraulic pump and variable-frequency motor low pressure huge discharge hydraulic pump is connected to TBM propelling hydraulic cylinder group through multiple inserted valve on-off systems, inserted valve on-off system is used to control the break-make of oil circuit fluid in oil circuit is changed flow direction, realize propelling hydraulic cylinder group normal propulsion, it is differential quickly propel, fast retractile and the unloaded four kinds of states quickly propelled.By the utility model so that TBM soft rock section driving and it is unloaded promote when, can use and differential quickly propel function to improve fltting speed, saving working time, raising operating efficiency, lifting system efficiency.
Description
Technical field
The utility model is related to tunneling boring hard rock tunnel Boring Machine Technique field, specifically, and more particularly to a kind of TBM becomes
The electro-hydraulic propulsion system of rotating speed variable-displacement pump control.
Background technology
Tunneling boring hard rock tunnel development machine (Full Face Hard Rock Tunnel Boring Machine, domestic letter
Claim TBM) it is widely used in hard rock tunnel construction project, it is that the base of country applies the firm need for building engineering.
Propulsion hydraulic system is available to the Major Systems of thrust needed for TBM is tunneled forward, in TBM progradations, pushes away
Enter the size of hydraulic system thrust output and the speed of propelling hydraulic cylinder contraction speed is material impact that TBM tunnels forward speed
Factor.
Existing TBM propulsion hydraulic systems only one of which progradation, and the motor of driving oil feed pump uses asynchronous machine,
Higher rotation speed can not be provided, larger flow, and existing propulsion hydraulic system is supplied, energy dissipation is serious.
Utility model content
In order to solve the problem of tunneling boring hard rock tunnel development machine propulsion hydraulic system is present in background technology, it is proposed that one
Plant in the electro-hydraulic propulsion system of TBM variable speed variable-displacement pump controls, system using variable-frequency motor driving change displacement hydraulic pump supply high pressure
Oil sources, and promote propelling hydraulic cylinder using differential fashion, TBM propulsion system operating efficiencies can be lifted, system energy is reduced
Consumption.
It is as follows that the utility model solves the technical scheme that its technical problem used：
The utility model includes variable-frequency motor and becomes displacement hydraulic pump, variable-frequency motor low pressure huge discharge hydraulic pump, multiple insertings
Valve on-off system and safety valve, variable-frequency motor becomes displacement hydraulic pump and variable-frequency motor low pressure huge discharge hydraulic pump is used as control system
Flow and pressure output, it is logical through multiple inserted valves that variable-frequency motor becomes displacement hydraulic pump and variable-frequency motor low pressure huge discharge hydraulic pump
Disconnected device is connected to TBM propelling hydraulic cylinder group, and variable-frequency motor becomes displacement hydraulic pump and variable-frequency motor low pressure huge discharge hydraulic pump
Respective output end is connected with safety valve；Inserted valve on-off system is used to control the break-make of oil circuit the fluid in oil circuit is changed stream
To, realize propelling hydraulic cylinder group normal propulsion, it is differential quickly propel, fast retractile and the unloaded four kinds of states quickly propelled.
Described variable-frequency motor, which becomes displacement hydraulic pump, to be included the second variable-frequency motor and becomes displacement hydraulic pump, the second variable-frequency motor
Driving becomes displacement hydraulic pump and provides high pressure fuel source to the propelling hydraulic cylinder group of system.
Described variable-frequency motor low pressure huge discharge hydraulic pump includes the first variable-frequency motor and low pressure huge discharge constant displacement pump, first
Variable-frequency motor drives low pressure huge discharge constant displacement pump to export fluid flow to the propelling hydraulic cylinder group of system, is retracted in propelling hydraulic cylinder
When, the fluid increase in propelling hydraulic cylinder group is input to, makes propelling hydraulic cylinder fast retractile.
Including the inserted valve on-off system described in four, respectively the first inserted valve on-off system, the second inserted valve break-make
Device, the 3rd inserted valve on-off system and the 4th inserted valve on-off system；Second inserted valve on-off system is arranged on two hydraulic pressure
In connection oil circuit between pump and propelling hydraulic cylinder group rodless cavity, the 3rd inserted valve on-off system is arranged on two hydraulic pumps with pushing away
In connection oil circuit between inlet hydraulic cylinder group rod chamber；First inserted valve on-off system one end is connected to propelling hydraulic cylinder group without bar
The fuel-displaced oil circuit of chamber, other end connection fuel tank；It is fuel-displaced that 4th inserted valve on-off system one end is connected to propelling hydraulic cylinder group rod chamber
Oil circuit, other end connection fuel tank；
Variable-frequency motor becomes displacement hydraulic pump and variable-frequency motor low pressure huge discharge hydraulic pressure pump output terminal after respective safety valve
It is connected again with the second inserted valve on-off system and the 3rd inserted valve on-off system.
The first inserted valve on-off system, the second inserted valve on-off system, the 3rd inserted valve on-off system and the 4th insert
Fill valve on-off system inner oil way structure all same, including two position three-way valve, shuttle valve and two-way plug-in valve, two position three-way valve
A mouthfuls are connected with the Stress control mouthful of two-way plug-in valve, and two input ports of shuttle valve connect with the oil circuit port of two-way plug-in valve two respectively
Connect, the delivery outlet of shuttle valve and the P mouths of two position three-way valve are connected, the T mouths connection fuel tank of two position three-way valve；
In first inserted valve on-off system and the 4th inserted valve on-off system inner oil way structure, one oil of two-way plug-in valve
Road port is connected with fuel tank, and another oil circuit port of two-way plug-in valve is connected with propelling hydraulic cylinder group rodless cavity or rod chamber；
In second inserted valve on-off system and the 3rd inserted valve on-off system inner oil way structure, one oil circuit port of two-way plug-in valve with
Two hydraulic pump connections, another oil circuit port of two-way plug-in valve is connected with propelling hydraulic cylinder group rodless cavity or rod chamber.
Control the break-make of oil circuit to change the fluid in oil circuit by inserted valve on-off system using said apparatus to flow to, it is real
The normal propulsion of existing propelling hydraulic cylinder group, it is differential quickly propel, fast retractile and the unloaded four kinds of states quickly propelled.
Realize that the normal advanced state of propelling hydraulic cylinder group is specifically by the control of inserted valve on-off system：Close variable-frequency motor
Low pressure huge discharge hydraulic pump, opens variable-frequency motor and becomes displacement hydraulic pump, the first inserted valve on-off system of regulation and the 3rd inserted valve
A mouthfuls of two position three-way valve in on-off system is logical P mouthfuls, in the second inserted valve on-off system of regulation and the 4th inserted valve on-off system
A mouthfuls of two position three-way valve is logical T mouthfuls, now the first inserted valve on-off system and the 3rd obstructed fluid of inserted valve on-off system, and second inserts
Fill valve on-off system and the 4th inserted valve on-off system leads to fluid, variable-frequency motor becomes displacement hydraulic pump output hydraulic oil and passes through second
Inserted valve on-off system enters the rodless cavity of propelling hydraulic cylinder group so that the hydraulic cylinder piston of propelling hydraulic cylinder group is released, real
Now normal to promote, the fluid of rod chamber flows back to fuel tank through the 4th inserted valve on-off system.
Realize that the differential state that quickly propels of propelling hydraulic cylinder group is specifically by the control of inserted valve on-off system：Close frequency conversion
Motor low pressure huge discharge hydraulic pump, opens variable-frequency motor and becomes displacement hydraulic pump, the first inserted valve on-off system of regulation and the 4th insert
A mouthfuls of the two position three-way valve filled in valve on-off system is logical P mouthfuls, the second inserted valve on-off system of regulation and the 3rd inserted valve on-off system
In A mouthfuls of two position three-way valve it is logical T mouthfuls, now the first inserted valve on-off system and the 4th obstructed fluid of inserted valve on-off system, the
Two inserted valve on-off systems and the 3rd inserted valve on-off system lead to fluid, and propelling hydraulic cylinder group is in differential oil line, hydraulic pump
Fluid and the fluid of propelling hydraulic cylinder rod chamber outflow out enters the rodless cavity of propelling hydraulic cylinder group so that advancing hydraulic pressure
The hydraulic cylinder piston of cylinder group is quickly released, and is realized and differential is quickly propelled function.
Realize that propelling hydraulic cylinder group fast retractile state is specifically by the control of inserted valve on-off system：Open variable-frequency motor
Low pressure huge discharge hydraulic pump and variable-frequency motor become displacement hydraulic pump, the second inserted valve on-off system of regulation and the 4th inserted valve break-make
A mouthfuls of two position three-way valve in device is logical P mouthfuls, two in the first inserted valve on-off system of regulation and the 3rd inserted valve on-off system
A mouthfuls of triple valve is logical T mouthfuls, now the second inserted valve on-off system and the 4th obstructed fluid of inserted valve on-off system, the first inserted valve
On-off system and the 3rd inserted valve on-off system lead to fluid, and displacement hydraulic pump and variable-frequency motor low pressure huge discharge are become from variable-frequency motor
The big flow fluid that hydraulic pump is exported jointly enters the rod chamber of propelling hydraulic cylinder group by the 3rd inserted valve on-off system, makes
The hydraulic cylinder piston fast retractile of propelling hydraulic cylinder group is obtained, the fluid of rodless cavity flows back to fuel tank through the first inserted valve on-off system.
Realize that propelling hydraulic cylinder group zero load quickly propels state and is specifically by the control of inserted valve on-off system：Open frequency conversion
Motor low pressure huge discharge hydraulic pump and variable-frequency motor become displacement hydraulic pump, the first inserted valve on-off system of regulation and the 4th inserted valve
A mouthfuls of two position three-way valve in on-off system is logical P mouthfuls, in the second inserted valve on-off system of regulation and the 3rd inserted valve on-off system
A mouthfuls of two position three-way valve is logical T mouthfuls, now the first inserted valve on-off system and the 4th obstructed fluid of inserted valve on-off system, and second inserts
Fill valve on-off system and the 3rd inserted valve on-off system leads to fluid, propelling hydraulic cylinder group is in differential oil line, and hydraulic pump comes out
Fluid and propelling hydraulic cylinder rod chamber outflow fluid enter propelling hydraulic cylinder group rodless cavity so that propelling hydraulic cylinder group
Hydraulic cylinder piston quickly release, realize that zero load quickly propels status function.
The utility model has an advantageous effect in that compared with background technology：
The utility model makes hydraulic drive cylinder group can due to being engaged control oil circuit using multiple inserted valve on-off systems
Normally to promote and quickly propel, so when TBM drivings are in soft rocks, it can use and differential quickly propel function to increase
Fltting speed, when TBM zero loads are promoted, could be used that differential propulsion and big flow propulsion functions, so as to save the working time, carries
High workload efficiency, reduces energy consumption.
Compared to the asynchronous machine used in background technology, variable-frequency motor can provide variable rotating speed, and can be arranged with becoming
Amount hydraulic pump is coordinated, and is adjusted such that system effectiveness highest state, lifting system efficiency.
Brief description of the drawings
Fig. 1 is the principle schematic of the utility model system.
In figure：1st, low pressure huge discharge hydraulic pump, the 2, first variable-frequency motor, 3, check valve, 4, two position three-way valve, 5, shuttle valve,
6th, two-way plug-in valve, 7, propelling hydraulic cylinder group, the 8, first safety valve, 9, become displacement hydraulic pump, the 10, second variable-frequency motor, 11, the
Two safety valves；E1, the first inserted valve on-off system, E2, the second inserted valve on-off system, E3, the 3rd inserted valve on-off system,
E4, the 4th inserted valve on-off system, E5, variable-frequency motor become displacement hydraulic pump, E6, variable-frequency motor low pressure huge discharge hydraulic pump.
Embodiment
The utility model is described further with reference to the accompanying drawings and examples.
As shown in figure 1, the utility model, which includes variable-frequency motor, becomes displacement hydraulic pump E5, variable-frequency motor low pressure huge discharge hydraulic pressure
Pump E6, inserted valve on-off system E1, E2, E3, E4, safety valve 8 and propelling hydraulic cylinder group 7, variable-frequency motor change displacement hydraulic pump E5,
Variable-frequency motor low pressure huge discharge hydraulic pump E6 as whole system flow and pressure output, four inserted valve on-off system E1,
Oil circuit can be cut off in E2, E3, E4, fluid is changed flow direction, so that system is operated in different conditions, safety valve 8 limits oil circuit pressure
Power, propelling hydraulic cylinder group 7, which is realized, to promote and shrinks.
Variable-frequency motor, which becomes displacement hydraulic pump E5, to be included the second variable-frequency motor 10 and becomes displacement hydraulic pump 9, the second variable-frequency motor
10 drivings become displacement hydraulic pump 9 and provide high pressure fuel source to the propelling hydraulic cylinder group 7 of system, are obtained when promoting propelling hydraulic cylinder group
High pressure, so that TBM is pushed ahead.
Variable-frequency motor low pressure huge discharge hydraulic pump E6 includes the first variable-frequency motor 2 and low pressure huge discharge constant displacement pump 1, and first becomes
The driving low pressure huge discharge of frequency motor 2 constant displacement pump 1 exports fluid flow to the propelling hydraulic cylinder group 7 of system, in propelling hydraulic cylinder contracting
Hui Shi, is input to the fluid increase in propelling hydraulic cylinder group 7, makes propelling hydraulic cylinder fast retractile.The basis of first variable-frequency motor 10
Actual conditions adjust rotating speed, so as to adjust the retraction speed of propelling hydraulic cylinder, the first variable-frequency motor 10, which can also be changed, makees asynchronous electricity
Machine, is simply unable to regulation motor rotating speed, so that output flow is fixed, poor-performing.
Become displacement hydraulic pump 9 and export fluid through the first safety valve 8, low pressure huge discharge constant displacement pump 1 is successively through the second safety valve
11 and check valve 3 after export fluid, safety valve includes an overflow valve, is connected on the fuel-displaced oil circuit of hydraulic pump, can control
The maximum pressure of oil circuit.
The inserted valve on-off system of specific implementation includes a two-way plug-in valve, a shuttle valve and a two position three-way valve,
Inserted valve on-off system is had at 4 in system, respectively the first inserted valve on-off system E1, the second inserted valve on-off system E2,
3rd inserted valve on-off system E3 and the 4th inserted valve on-off system E4.Second inserted valve on-off system E2 is arranged on two hydraulic pressure
In connection oil circuit between pump and the rodless cavity of propelling hydraulic cylinder group 7, the 3rd inserted valve on-off system E3 is arranged on two hydraulic pumps
In connection oil circuit between the rod chamber of propelling hydraulic cylinder group 7；First inserted valve on-off system E1 one end is connected to advancing hydraulic pressure
The fuel-displaced oil circuit of the rodless cavity of cylinder group 7, other end connection fuel tank；4th inserted valve on-off system E4 one end is connected to propelling hydraulic cylinder group
The fuel-displaced oil circuit of 7 rod chambers, other end connection fuel tank；Second inserted valve on-off system E2 and the 3rd inserted valve on-off system E3 company
Safety valve is installed, variable-frequency motor becomes displacement hydraulic pump E5 and variable-frequency motor low pressure huge discharge hydraulic pump E6 output ends warp before contact
It is connected again with the second inserted valve on-off system E2 and the 3rd inserted valve on-off system E3 after respective safety valve 8,11.
The P2 mouths of second inserted valve on-off system E2 fuel-displaced and in E2 the shuttle valve of two-way plug-in valve one end connection hydraulic pump,
The other end is connected to the P1 mouths of the shuttle valve in the rodless cavity and E2 of propelling hydraulic cylinder, the control mouth C connections two of two-way plug-in valve
The A mouths of triple valve, the oil-out SA of the P mouth connection shuttle valves of two position three-way valve, the T mouths connection fuel tank of two position three-way valve, when two
Triple valve is A mouthfuls in right position and connects T mouthfuls to fuel tank, and two-way plug-in valve is opened, the logical oil of the second inserted valve on-off system E2, is come from
The fluid of hydraulic pump enters the rodless cavity of propelling hydraulic cylinder by the second inserted valve on-off system E2, when two position three-way valve is in a left side
Position is A mouthfuls and connects P mouthfuls, and two-way plug-in valve is closed, and fluid can not pass through the second inserted valve on-off system E2.
First inserted valve on-off system E1 two-way plug-in valve one end connects the second inserted valve on-off system E2 fuel-displaced oil
The P1 mouths of shuttle valve in road and E1, the other end is connected to the control of the two-way plug-in valve in the P2 mouths of the shuttle valve in fuel tank and E1, E1
The A mouths of two position three-way valve in donsole C connections E1, the oil-out SA of the P mouth connection shuttle valves of two position three-way valve, two position three-way valve
T mouthfuls of connection fuel tanks, connect T mouthfuls to fuel tank, two-way plug-in valve is opened when the two position three-way valve in E1 is A mouthfuls in right position, and first
The logical oil of inserted valve on-off system E1, the fluid of propelling hydraulic cylinder rodless cavity enters fuel tank by the first inserted valve on-off system E1,
P mouthfuls are connected when two position three-way valve is A mouthfuls in left position, two-way plug-in valve is closed, and fluid can not be filled by the first inserted valve break-make
Put E1.
Shuttle in the rod chamber and E3 of 3rd inserted valve on-off system E3 two-way plug-in valve one end connection propelling hydraulic cylinder
The P2 mouths of valve, the other end is connected to the control of the two-way plug-in valve in the P1 mouths of the fuel-displaced oil circuit of hydraulic pump and the shuttle valve in E3, E3
The A mouths of two position three-way valve in mouth C connections E3, the oil-out SA, the T of two position three-way valve of the P mouth connection shuttle valves of two position three-way valve
Mouth connection fuel tank, connects T mouthfuls to fuel tank, two-way plug-in valve is opened, and the 3rd inserts when the two position three-way valve in E3 is A mouthfuls in right position
The logical oil of valve on-off system E3 is filled, P mouthfuls are connected when two position three-way valve is A mouthfuls in left position, two-way plug-in valve is closed, and fluid can not lead to
Cross the 3rd inserted valve on-off system E3.
Shuttle in the rod chamber and E4 of 4th inserted valve on-off system E4 two-way plug-in valve one end connection propelling hydraulic cylinder
The P1 mouths of valve, the other end is connected in the control mouth C connections E4 of the two-way plug-in valve in the P2 mouths of the shuttle valve in fuel tank and E4, E4
Two position three-way valve A mouths, the oil-out SA of the P mouth connection shuttle valves of two position three-way valve, two position three-way valve T mouths connection fuel tank,
T mouthfuls are connected to fuel tank when the two position three-way valve in E4 is A mouthfuls in right position, and two-way plug-in valve is opened, the 4th inserted valve break-make dress
The logical oil of E4 is put, the fluid of propelling hydraulic cylinder rod chamber enters fuel tank by the 4th inserted valve on-off system E4, works as two position three-way valve
It is A mouthfuls in left position and connects P mouthfuls, two-way plug-in valve is closed, and fluid can not pass through the 4th inserted valve on-off system E4.
As shown in figure 1, the course of work of the present utility model is as follows：
Propelling hydraulic cylinder group 7 is composed in parallel by 4 hydraulic drive cylinders, 4 propelling hydraulic cylinder co- controllings, and system can control
Realize propelling hydraulic cylinder group 7 normal propulsion, it is differential quickly propel, fast retractile and the unloaded function of quickly propelling；
System realizes the normal propulsion functions of propelling hydraulic cylinder group 7, and its implementation process is as follows：Close the big row of variable-frequency motor low pressure
Hydraulic pump is measured, variable-frequency motor is opened and becomes displacement hydraulic pump, the first inserted valve on-off system E1 of regulation and the 3rd inserted valve break-make dress
6A mouthfuls of the two position three-way valve put in E3 is logical P mouthfuls, i.e., the left position into Fig. 1, regulation the second inserted valve on-off system E2 and the 4th is inserted
A mouthfuls of the two position three-way valve filled in valve on-off system E4 is logical T mouthfuls, i.e., the right position into Fig. 1；Now the first inserted valve on-off system E1
With the 3rd obstructed fluid of inserted valve on-off system E3, the second inserted valve on-off system E2 and the logical oil of the 4th inserted valve on-off system E4
Liquid, variable-frequency motor becomes the output hydraulic oil of displacement hydraulic pump 10 and enters propelling hydraulic cylinder group by the second inserted valve on-off system E2
7 rodless cavity so that the hydraulic cylinder piston of propelling hydraulic cylinder group 7 is released, realizes normal propulsion, and the fluid of rod chamber is inserted through the 4th
Dress valve on-off system E4 flows back to fuel tank.
System realizes that propelling hydraulic cylinder group 7 is differential and quickly propels function, and its implementation process is as follows：
Variable-frequency motor low pressure huge discharge hydraulic pump is closed, variable-frequency motor is opened and becomes displacement hydraulic pump, adjust the first inserted valve
A mouthfuls of two position three-way valve in on-off system E1 and the 4th inserted valve on-off system E4 is logical P mouthful, i.e., the left position into Fig. 1, adjusts the
A mouthfuls of two position three-way valve in two inserted valve on-off system E2 and the 3rd inserted valve on-off system E3 is logical T mouthfuls, i.e., the right side into Fig. 1
Position；Now the first inserted valve on-off system E1 and the 4th obstructed fluid of inserted valve on-off system E4, the second inserted valve on-off system
E2 and the 3rd inserted valve on-off system E3 leads to fluid, and propelling hydraulic cylinder group 7 is in differential oil line, fluid that hydraulic pump comes out and
The fluid of propelling hydraulic cylinder rod chamber outflow enters the rodless cavity of propelling hydraulic cylinder group 7 so that the hydraulic pressure of propelling hydraulic cylinder group 7
Cylinder piston is quickly released, and is realized and differential is quickly propelled function.
System realizes the fast retractile function of propelling hydraulic cylinder group 7, and its implementation process is as follows：
Open variable-frequency motor low pressure huge discharge hydraulic pump and variable-frequency motor becomes displacement hydraulic pump, adjust the second inserted valve break-make
A mouthfuls of two position three-way valve in device E2 and the 4th inserted valve on-off system E4 is logical P mouthfuls, i.e., the left position into Fig. 1, regulation first is inserted
A mouthfuls of the two position three-way valve filled in valve on-off system E1 and the 3rd inserted valve on-off system E3 is logical T mouthfuls, i.e., the right position into Fig. 1；This
When the second inserted valve on-off system E2 and the 4th obstructed fluid of inserted valve on-off system E4, the first inserted valve on-off system E1 and
Three inserted valve on-off system E3 lead to fluid, become displacement hydraulic pump from variable-frequency motor and variable-frequency motor low pressure huge discharge hydraulic pump is common
The big flow fluid of output enters the rod chamber of propelling hydraulic cylinder group 7 by the 3rd inserted valve on-off system E3 so that promote
The hydraulic cylinder piston fast retractile of hydraulic cylinder group 7, the fluid of rodless cavity flows back to fuel tank through the first inserted valve on-off system E1.
System realizes that the zero load of propelling hydraulic cylinder group 7 quickly propels function, and its implementation process is as follows：
Open variable-frequency motor low pressure huge discharge hydraulic pump and variable-frequency motor becomes displacement hydraulic pump, adjust the first inserted valve break-make
A mouthfuls of two position three-way valve in device E1 and the 4th inserted valve on-off system E4 is logical P mouthfuls, i.e., the left position into Fig. 1, regulation second is inserted
A mouthfuls of the two position three-way valve filled in valve on-off system E2 and the 3rd inserted valve on-off system E3 is logical T mouthfuls, i.e., the right position into Fig. 1；This
When the first inserted valve on-off system E1 and the 4th obstructed fluid of inserted valve on-off system E4, the second inserted valve on-off system E2 and
Three inserted valve on-off system E3 lead to fluid, and propelling hydraulic cylinder group 7 is in differential oil line, fluid and propulsion liquid that hydraulic pump comes out
The fluid of cylinder pressure rod chamber outflow enters the rodless cavity of propelling hydraulic cylinder group 7 so that the hydraulic cylinder piston of propelling hydraulic cylinder group 7
It is quick to release, realize that zero load quickly propels status function.
Particular embodiments described above, has carried out entering one to the purpose of this utility model, technical scheme and beneficial effect
Step is described in detail, be should be understood that and be the foregoing is only specific embodiment of the utility model, is not limited to this
Utility model, all within spirit of the present utility model and principle, any modification, equivalent substitution and improvements done etc. all should be wrapped
It is contained within protection domain of the present utility model.
Claims (5)
1. a kind of electro-hydraulic propulsion system of TBM variable speeds variable-displacement pump control, it is characterised in that：Become displacement hydraulic pump including variable-frequency motor
(E5), variable-frequency motor low pressure huge discharge hydraulic pump (E6), multiple inserted valve on-off systems and safety valve, variable-frequency motor become discharge capacity liquid
Press pump (E5) and variable-frequency motor low pressure huge discharge hydraulic pump (E6) are used as the flow and pressure output of control system, variable-frequency motor change
Displacement hydraulic pump (E5) and variable-frequency motor low pressure huge discharge hydraulic pump (E6) are connected to pushing away for TBM through multiple inserted valve on-off systems
Inlet hydraulic cylinder group (7), variable-frequency motor becomes displacement hydraulic pump (E5) and variable-frequency motor low pressure huge discharge hydraulic pump (E6) is respective defeated
Go out end and be connected with safety valve.
2. a kind of electro-hydraulic propulsion system of TBM variable speeds variable-displacement pump control according to claim 1, it is characterised in that：It is described
Variable-frequency motor become displacement hydraulic pump (E5) include the second variable-frequency motor (10) and change displacement hydraulic pump (9), the second variable-frequency motor
(10) driving becomes displacement hydraulic pump (9) to propelling hydraulic cylinder group (7) offer high pressure fuel source.
3. a kind of electro-hydraulic propulsion system of TBM variable speeds variable-displacement pump control according to claim 1, it is characterised in that：It is described
Variable-frequency motor low pressure huge discharge hydraulic pump (E6) include the first variable-frequency motor (2) and low pressure huge discharge constant displacement pump (1), first change
Frequency motor (2) driving low pressure huge discharge constant displacement pump (1) exports fluid flow to the propelling hydraulic cylinder group (7) of system, in propulsion liquid
When cylinder pressure is retracted, the fluid increase in propelling hydraulic cylinder group (7) is input to, makes propelling hydraulic cylinder fast retractile.
4. a kind of electro-hydraulic propulsion system of TBM variable speeds variable-displacement pump control according to claim 1, it is characterised in that：Including
Inserted valve on-off system described in four, respectively the first inserted valve on-off system (E1), the second inserted valve on-off system (E2),
3rd inserted valve on-off system (E3) and the 4th inserted valve on-off system (E4)；Second inserted valve on-off system (E2) is arranged on two
In connection oil circuit between individual hydraulic pump and propelling hydraulic cylinder group (7) rodless cavity, the 3rd inserted valve on-off system (E3) is arranged on
In connection oil circuit between two hydraulic pumps and propelling hydraulic cylinder group (7) rod chamber；First inserted valve on-off system (E1) one end
It is connected to the fuel-displaced oil circuit of propelling hydraulic cylinder group (7) rodless cavity, other end connection fuel tank；4th inserted valve on-off system (E4) one end
It is connected to the fuel-displaced oil circuit of propelling hydraulic cylinder group (7) rod chamber, other end connection fuel tank；Variable-frequency motor become displacement hydraulic pump (E5) and
Variable-frequency motor low pressure huge discharge hydraulic pump (E6) output end is filled with the second inserted valve break-make again after respective safety valve (8,11)
Put (E2) and the connection of the 3rd inserted valve on-off system (E3).
5. a kind of electro-hydraulic propulsion system of TBM variable speeds variable-displacement pump control according to claim 4, it is characterised in that：It is described
First inserted valve on-off system (E1), the second inserted valve on-off system (E2), the 3rd inserted valve on-off system (E3) and the 4th insert
Valve on-off system (E4) inner oil way structure all same is filled, including two position three-way valve (4), shuttle valve (5) and two-way plug-in valve
(6), the A mouths of two position three-way valve (4) are connected with the Stress control mouthful of two-way plug-in valve (6), two input ports difference of shuttle valve (5)
With the connection of the oil circuit port of two-way plug-in valve (6) two, the delivery outlet of shuttle valve (5) is connected with the P mouths of two position three-way valve (4), two three
The T mouths connection fuel tank of port valve (4)；First inserted valve on-off system (E1) and the 4th inserted valve on-off system (E4) internal oil passages knot
In structure, (6) oil circuit ports of two-way plug-in valve are connected with fuel tank, another oil circuit port of two-way plug-in valve (6) and propulsion liquid
Cylinder pressure group (7) rodless cavity or rod chamber connection；Second inserted valve on-off system (E2) and the 3rd inserted valve on-off system (E3)
In inner oil way structure, (6) oil circuit ports of two-way plug-in valve are connected with two hydraulic pumps, two-way plug-in valve (6) another
Oil circuit port is connected with propelling hydraulic cylinder group (7) rodless cavity or rod chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621432108.9U CN206360953U (en) | 2016-12-23 | 2016-12-23 | A kind of electro-hydraulic propulsion system of TBM variable speeds variable-displacement pump control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621432108.9U CN206360953U (en) | 2016-12-23 | 2016-12-23 | A kind of electro-hydraulic propulsion system of TBM variable speeds variable-displacement pump control |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206360953U true CN206360953U (en) | 2017-07-28 |
Family
ID=59376589
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|---|---|---|---|
| CN201621432108.9U Withdrawn - After Issue CN206360953U (en) | 2016-12-23 | 2016-12-23 | A kind of electro-hydraulic propulsion system of TBM variable speeds variable-displacement pump control |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762888A (en) * | 2016-12-23 | 2017-05-31 | 浙江大学 | The TBM electro-hydraulic propulsion systems of variable speed variable-displacement pump control and control method |
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2016
- 2016-12-23 CN CN201621432108.9U patent/CN206360953U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106762888A (en) * | 2016-12-23 | 2017-05-31 | 浙江大学 | The TBM electro-hydraulic propulsion systems of variable speed variable-displacement pump control and control method |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20170728 Effective date of abandoning: 20190301 |