CN209277892U - Shield machine belt mud-scraping apparatus control system - Google Patents
Shield machine belt mud-scraping apparatus control system Download PDFInfo
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- CN209277892U CN209277892U CN201821743589.4U CN201821743589U CN209277892U CN 209277892 U CN209277892 U CN 209277892U CN 201821743589 U CN201821743589 U CN 201821743589U CN 209277892 U CN209277892 U CN 209277892U
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Abstract
The utility model provides a kind of shield machine belt mud-scraping apparatus control system, belong to Shield-type machinery technical field, the hydraulic control system risen or fallen including the hydraulic cylinder for driving cleaning shoe to move up and down and for controlling the hydraulic cylinder, the hydraulic control system includes interconnected main oil feed line and synchronous oil circuit, one end of the main oil feed line is connected to by pressure reducing valve with fuel tank, the other end of the main oil feed line is connected to by hydraulic control one-way valve with one end of the synchronous oil circuit, the rodless cavity of the synchronous oil circuit and two hydraulic cylinders is respectively communicated with, the rod chamber of two hydraulic cylinders passes through three-position four-way electromagnetic directional valve respectively and is connected to the fuel tank, the three-position four-way electromagnetic directional valve is electrically connected with electric-control system.Shield machine belt mud-scraping apparatus control system provided by the utility model, it is intended to solve existing cleaning shoe and scrape the technical issues of mud effect is bad and cleaning shoe need to be adjusted manually at a distance from belt.
Description
Technical field
The utility model belongs to Shield-type machinery technical field, is to be related to a kind of shield machine belt to scrape mud dress more specifically
It sets and uses control system.
Background technique
In balancing earth-pressure shielding machine progradation, dregs is transported to through belt conveyor stops slag-soil truck in orbit
On.It in dregs transmission process, is easily bonded on belt, with the operating of belt, dregs splashing is fallen seriously, in trailer junction
There are a large amount of dregs to accumulate, fall will affect construction safety suddenly, dregs, which is fallen, also influences worker's construction, and tunnel sanitary condition becomes
Difference also can cause greatly to damage to various equipment, especially electric elements, reduce the service life.Dregs cleaning is relatively troublesome,
Construction speed is influenced, and a large amount of woven bag can be wasted, improves construction cost etc..
In the tunnel excavating process that some formation components are mainly clayey silt, flour sand, fine sand etc., inevitably go out
Existing dregs bonds belt phenomenon, in such a case it is necessary to be cleared up using cleaning shoe belt.In balancing earth-pressure shielding machine
On frequently with belt cleaning shoe be that the nylon carried on the inside of lower layer's belt at triangle cleaning shoe and driving wheel at driven wheel scrapes mud
Plate cannot play and scrape mud effect well, to cause lower layer's belt outer layer foundry loam phenomenon serious, dregs be caused to fall in tunnel
It falls seriously, and belt roller bonding is serious, forms thicker mud film, biggish frictional resistance is generated in belt rotation process,
Belt driving motor torque is caused to increase, Yi Yinqi belt motor overload, so as to cause frequency converter overload-alarm, breaker is frequent
Tripping, causes unnecessary electric fault.And cleaning shoe is generally bolted with shield machine, installs rear cleaning shoe and skin
The distance needs of band are adjusted manually, and use has inconvenience more.
Utility model content
The purpose of this utility model is to provide a kind of shield machine belt mud-scraping apparatus control systems, it is intended to solve existing
Cleaning shoe scrapes the technical issues of mud effect is bad and cleaning shoe need to be adjusted manually at a distance from belt.
In order to achieve the above purposes, the technical solution adopted by the utility model is: provides a kind of shield machine belt mud-scraping apparatus
With control system, comprising: hydraulic cylinder for driving cleaning shoe to move up and down and risen or fallen for controlling the hydraulic cylinder
Hydraulic control system, the hydraulic control system includes interconnected main oil feed line and synchronous oil circuit, the main fuel feeding
One end of pipeline is connected to by pressure reducing valve with fuel tank, the other end of the main oil feed line pass through hydraulic control one-way valve with it is described synchronous
One end of oil circuit is connected to, and the rodless cavity of the synchronous oil circuit and two hydraulic cylinders is respectively communicated with, two hydraulic cylinders
Rod chamber passes through three-position four-way electromagnetic directional valve respectively and is connected to the fuel tank, the three-position four-way electromagnetic directional valve and automatically controlled system
System electrical connection.
Further, the synchronous oil circuit include the first branch being respectively communicated with the rodless cavity of two hydraulic cylinders and
Second branch, the first branch and the second branch pass through synchronous valve respectively and are connected to the hydraulic control one-way valve.
Further, the synchronous valve includes the first throttle valve group being arranged in the first branch and is arranged described
Second throttle group in second branch.
Further, the first throttle valve group includes the first positive throttle valve being serially connected and the first reversed throttling
Valve, the described first positive throttle valve are arranged between the hydraulic control one-way valve and the first reversed throttle valve, and described first is anti-
To throttle valve setting between the described first positive throttle valve and the hydraulic cylinder；The second throttle group includes being serially connected
The second positive throttle valve and the second reversed throttle valve, the described second positive throttle valve setting the hydraulic control one-way valve with it is described
Between second reversed throttle valve, the second reversed throttle valve setting the described second positive throttle valve and the hydraulic cylinder it
Between.
Further, the main oil feed line includes the first oil feed line, is provided with inserting on first oil feed line
The oil inlet of valve, the inserted valve is connected to by the pressure reducing valve with the fuel tank, the oil outlet of the inserted valve and the liquid
The oil inlet connection of check valve is controlled, the control mouth of the inserted valve is connected to the synchronous valve.
Further, the main oil feed line further includes second oil feed line in parallel with first oil feed line, institute
It states and is provided with hand hydraulic control valve on the second oil feed line, the oil inlet of the hand hydraulic control valve passes through the pressure reducing valve and the oil
The oil outlet of case connection, the hand hydraulic control valve is connected to by check valve with the oil inlet of the hydraulic control one-way valve.
Further, the main oil feed line further includes the third oil feed line in parallel with first oil feed line, institute
It states third oil feed line and is sequentially connected in series the pressure reducing valve, the three-position four-way electromagnetic directional valve and the hydraulic control one-way valve for connection
Oil feed line.
Further, the electric-control system includes first switch, the first relay, second switch and the second relay, institute
State the normally opened touching of the coil of the first relay, the first electromagnet of the three-position four-way electromagnetic directional valve, first relay
Point and the first switch be sequentially connected in series and formed for controlling the three-position four-way electromagnetic directional valve the first valve body conducting or
First current supply circuit of closure, the coil of second relay, the second electromagnet of the three-position four-way electromagnetic directional valve, institute
The normally opened contact and the second switch for stating the second relay are sequentially connected in series and are formed and changed for controlling the 3-position 4-way electromagnetism
The second current supply circuit for being connected or being closed to the second valve body of valve.
Further, first current supply circuit and second current supply circuit also pass through miniature circuit breakers and power supply electricity respectively
Connection.
Further, first current supply circuit and second current supply circuit also respectively by emergency stop switch with it is described micro-
Disconnect powered-down connection.
The beneficial effect of shield machine belt mud-scraping apparatus control system provided by the utility model is: with the prior art
It compares, the utility model shield machine belt mud-scraping apparatus is carried out with mud-scraping apparatus of the control system to lower belt on existing shield machine
It improves, in the bottom of cleaning shoe accelerates hydraulic cylinder, and devise the hydraulic control system that can be automatically controled hydraulic cylinder lifting,
The automatic adjustment of spacing between cleaning shoe and shield machine lower belt is realized, so that hydraulic control after wearing at the top of cleaning shoe
System or user can be as the case may be quickly to being adjusted between cleaning shoe and lower belt indirectly, it is ensured that shield machine skin
Mud effect remains preferable state to scraping with mud-scraping apparatus and stationarity is excellent, while without manually adjusting cleaning shoe under
The distance between belt, it is convenient to operate, and reduces labor intensity when equipment uses, improves the convenience that equipment uses.Separately
Outside, hydraulic cylinder adds, and to cleaning shoe provides a upward jacking force, avoids in use process cleaning shoe in lower belt
It is bent downward under the pressure of upper clay, and then ensures that shield machine belt mud-scraping apparatus is good and scrape mud effect.
Detailed description of the invention
It, below will be to embodiment or the prior art in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is the structural schematic diagram of hydraulic cylinder provided by the embodiment of the utility model；
Fig. 2 is the hydraulic control system of shield machine belt mud-scraping apparatus control system provided by the embodiment of the utility model
Hydraulic principle schematic diagram；
Fig. 3 is the circuit theory schematic diagram of electric-control system provided by the embodiment of the utility model.
In figure: 1, cleaning shoe；2, control system；21, main oil feed line；211, the first oil feed line；212, the second fuel feeding
Pipeline；213, third oil feed line；22, synchronous oil circuit；221, the first branch；222, second branch；23, hydraulic control one-way valve；24,
Three-position four-way electromagnetic directional valve；25, fuel tank；26, inserted valve；27, hand hydraulic control valve；28, check valve；29, pressure reducing valve；3, hydraulic
Cylinder；4, synchronous valve；41, first throttle valve group；411, the first positive throttle valve；412, the first reversed throttle valve；42, the second throttling
Valve group；421, the second positive throttle valve；422, the second reversed throttle valve；5, electric-control system；51, the first current supply circuit；52, second
Current supply circuit；10, belt fixed frame；13, lower belt.
Specific embodiment
In order to which technical problem to be solved in the utility model, technical solution and beneficial effect is more clearly understood, with
Lower combination accompanying drawings and embodiments, the present invention will be further described in detail.It should be appreciated that specific reality described herein
It applies example to be only used to explain the utility model, is not used to limit the utility model.
Also referring to Fig. 1 to Fig. 3, now shield machine belt mud-scraping apparatus provided by the embodiment of the utility model is controlled
System is illustrated.The shield machine belt mud-scraping apparatus control system, including the liquid for driving cleaning shoe 1 to move up and down
Cylinder pressure 3 and the hydraulic control system 2 risen or fallen for controlling hydraulic cylinder 3, hydraulic control system 2 include interconnected master
Oil feed line 21 is connected to by pressure reducing valve 29 with fuel tank 25 with synchronous oil circuit 22, one end of main oil feed line 21, main oil feed line
21 other end is connected to by hydraulic control one-way valve 23 with one end of synchronous oil circuit 22, the nothing of synchronous oil circuit 22 and two hydraulic cylinders 3
Rod cavity is respectively communicated with, and the rod chamber of two hydraulic cylinders 3 passes through three-position four-way electromagnetic directional valve 24 respectively and is connected to fuel tank 25, and three
Four-way electromagnetic reversing valve 24 is electrically connected with electric-control system 5.
In use, hydraulic cylinder is mounted in belt fixed frame 10, after good position is installed, controlled by control system hydraulic
The height of cylinder 3, so that 1 top of cleaning shoe is abutted with the lower belt 13 of shield machine, the rotation of belt therewith, cleaning shoe 1 are right later
Lower belt 13 carries out scraping mud operation.When wearing at the top of cleaning shoe 1, the height of hydraulic cylinder 3 is further adjusted, so that scraping mud
Plate 1 is abutted with lower belt 13 again.
When cleaning shoe 1 needs to increase, the first valve body that electric-control system 5 controls three-position four-way electromagnetic directional valve 24 is (i.e. right
Side valve body) it is connected, main oil feed line 21 is connected, the hydraulic oil in fuel tank 25 is supplied into synchronous oil circuit 22 through hydraulic control one-way valve 23,
Synchronous oil circuit 22 synchronizes fuel feeding to the rodless cavity of two hydraulic cylinders respectively after being shunted oil circuit, controls two hydraulic cylinder synchronous
Rise, the hydraulic oil in hydraulic cylinder in rod chamber is then back in fuel tank 25 through three-position four-way electromagnetic directional valve 24.When cleaning shoe 1
When work, electric-control system 5 controls position work in three-position four-way electromagnetic directional valve 24, and the oil circuit of hydraulic system is blocked, and keeps liquid
Cylinder pressure is highly stable.When cleaning shoe 1 needs replacing, electric-control system 5 controls the second valve body of three-position four-way electromagnetic directional valve 24
(i.e. left side valve body) conducting, system start to hydraulic cylinder rod chamber fuel feeding, and the hydraulic oil of hydraulic cylinder rodless cavity then passes sequentially through liquid
Control check valve 23, three-position four-way electromagnetic directional valve 24 flow back into fuel tank 25.
Shield machine belt mud-scraping apparatus control system provided by the utility model, compared with prior art, this is practical new
Type improves the mud-scraping apparatus of lower belt 13 on existing shield machine, accelerates hydraulic cylinder 3 in the bottom of cleaning shoe 1, and
The hydraulic control system 2 that can be automatically controled the lifting of hydraulic cylinder 3 is devised, is realized between cleaning shoe 1 and shield machine lower belt 13
The automatic adjustment of spacing, so that hydraulic control system 2 or user can as the case may be quickly after wearing at the top of cleaning shoe 1
To being adjusted between cleaning shoe 1 and lower belt 13 indirectly, it is ensured that shield machine belt mud-scraping apparatus scrapes mud effect always
It keeps preferable state and stationarity is excellent, while without manually adjusting the distance between cleaning shoe 1 and lower belt 13, operation is just
Victory reduces labor intensity when equipment uses, improves the convenience that equipment uses.In addition, hydraulic cylinder 3 adds, to scraping
Mud plate 1 provides a upward jacking force, avoid in use process cleaning shoe 1 in lower belt 13 under the pressure of clay to
Lower bending, and then ensure that shield machine belt mud-scraping apparatus is good and scrape mud effect.
Hydraulic cylinder 3 is two in the present embodiment, is symmetricly set on 1 both ends of cleaning shoe.Hydraulic cylinder 3, which is set as two, then to be ensured
The stability of 1 both ends stress of cleaning shoe, at the same ensure 13 different zones of lower belt to scrape mud effect consistent.
As a kind of specific embodiment of shield machine belt mud-scraping apparatus control system provided by the utility model, ginseng
Fig. 2 is read, synchronous oil circuit 22 includes the first branch 221 and second branch 222 being respectively communicated with the rodless cavity of two hydraulic cylinders 3,
The first branch 221 and second branch 222 are connected to by synchronous valve 4 with hydraulic control one-way valve 23 respectively.
The setting that the utility model passes through synchronous oil circuit 22 realizes the synchronously control of two hydraulic cylinders, it is ensured that cleaning shoe
The consistency of 1 both ends stress.
Existing two-way synchronous valve or throttle valve in the market can be used in synchronous valve 4 in the present embodiment, as long as can make first
Branch 221 is consistent with the hydraulic flow of second branch 222 and flow velocity.
As a kind of specific embodiment of shield machine belt mud-scraping apparatus control system provided by the utility model, ginseng
Read Fig. 2, synchronous valve 4 include the first throttle valve group 41 being arranged in the first branch 221 and be arranged in second branch 222 the
Two throttling valve groups 42.
Synchronous valve 4 uses throttle valve, easy for installation, and is conveniently replaceable, repairs.
As a kind of specific embodiment of shield machine belt mud-scraping apparatus control system provided by the utility model, ginseng
Fig. 2 is read, first throttle valve group 41 includes the first positive throttle valve 411 and the first reversed throttle valve 412 being serially connected, and first just
It is arranged between hydraulic control one-way valve 23 and the first reversed throttle valve 412 to throttle valve 411, the first reversed setting of throttle valve 412 exists
Between first positive throttle valve 411 and hydraulic cylinder 3；Second throttle group 42 includes the second positive throttle valve 421 being serially connected
With the second reversed throttle valve 422, the second positive setting of throttle valve 421 hydraulic control one-way valve 23 and the second reversed throttle valve 422 it
Between, the second reversed setting of throttle valve 422 is between the second positive throttle valve 421 and hydraulic cylinder 3.
First positive throttle valve 411, the first positive throttle valve 421 of reversed throttle valve 412, second and the second reversed throttle valve
422 setting is so that the flow velocity of 222 hydraulic oil of the first branch 221 and second branch may be configured as when 3 raising and lowering of hydraulic cylinder
Different value, this setting improve the convenience that equipment uses.
As a kind of specific embodiment of shield machine belt mud-scraping apparatus control system provided by the utility model, ginseng
Fig. 2 is read, main oil feed line 21 includes the first oil feed line 211, is provided with inserted valve 26, inserted valve on the first oil feed line 211
26 oil inlet is connected to by pressure reducing valve 29 with fuel tank 25, and the oil outlet of inserted valve 26 and the oil inlet of hydraulic control one-way valve 23 connect
Logical, the control mouth of inserted valve 26 is connected to synchronous valve 4.
The setting of inserted valve 26 realizes automatic detection and adjustment of the control system to 3 working condition of hydraulic cylinder, specific work
It is as follows to make principle: after shield machine belt mud-scraping apparatus is installed with component each in control system, being automatically controlled to realize, first
Belt tension in shield machine is adjusted, effect of preferably slagging tap is reached；Secondly, being formed according to cleaning shoe 1 with lower belt 13 good
Mud effect is scraped to determine the pressure of hydraulic cylinder rodless cavity, so that it is determined that the pressure difference of pressure reducing valve 29 and inserted valve 26.When cleaning shoe 1 is ground
After damage, certain gap is formed with lower belt 13, inserted valve 26 detects that hydraulic cylinder rodless cavity pressure declines at this time, oil inlet at this time
By pressure reducing valve 29, open inserted valve 26, oil circuit flows at hydraulic control one-way valve 23, and synchronized valve 4 enters two liquid after shunting
The rodless cavity of cylinder pressure, at this point, inserted valve 26 is closed, is automatically controlled until rodless cavity oil pressure reaches established standards with this to realize.
This setting is so that control system 2 can realize the automatic detection of cylinder pressure, i.e. the automatic inspection whether worn of cleaning shoe 1
It surveys, and after the abrasion of cleaning shoe 1, automatically controls hydraulic cylinder 3 and cleaning shoe 1 is driven to rise, so that realizing shield machine belt scrapes mud
The automatic detection and adjustment of spacing, improve the degree of automation of equipment entirety, mention between device control system and lower belt 13
High working efficiency has kept equipment and has well smoothly scraped mud effect.
As a kind of specific embodiment of shield machine belt mud-scraping apparatus control system provided by the utility model, ginseng
Fig. 2 is read, main oil feed line 21 further includes second oil feed line 212 in parallel with the first oil feed line 211, the second oil feed line
Hand hydraulic control valve 27 is provided on 212, the oil inlet of hand hydraulic control valve 27 is connected to by pressure reducing valve 29 with fuel tank 25, hand hydraulically controlled
The oil outlet of valve 27 is connected to by check valve 28 with the oil inlet of hydraulic control one-way valve 23.
The setting of hand hydraulic control valve 27 realizes manually controlling for control system, and specific work process is as follows: quoted from auxiliary
The oil circuit of hydraulic system flows through pressure reducing valve 29, reaches at hand hydraulic control valve 27, presses hand hydraulic control valve 27, and oil circuit is connected up and down,
Hydraulic cylinder rodless cavity is reached after check valve 28, hydraulic control one-way valve 23, synchronous valve 4, and hydraulic cylinder is made to drive cleaning shoe 1 and its upper limit
Position block 6 moves towards to rise vertically along sliding locating slot 7, until reaching good scrapes mud effect.This setting increases control system
Multifunctionality, while after inserted valve 26 is damaged, equipment still be can be used.
As a kind of specific embodiment of shield machine belt mud-scraping apparatus control system provided by the utility model, ginseng
Fig. 2 is read, main oil feed line 21 further includes the third oil feed line 213 in parallel with the first oil feed line 211, third oil feed line
213 be the oil feed line that connection is sequentially connected in series pressure reducing valve 29, three-position four-way electromagnetic directional valve 24 and hydraulic control one-way valve 23.
The setting of third oil feed line 213 realizes the perfect combination of electric-control system 5 and hydraulic control system 2, further
The degree of automation of equipment is improved, specific work process is as follows: introducing 24V supply voltage, miniature circuit breakers F1 closes a floodgate, and emergency stop is opened
It is normal to close S1 state, presses first switch SB1 button, the coil of the first relay K1 obtains electric, the normally opened touching of the first relay K1
Point closure, the first electromagnet Y1 of three-position four-way electromagnetic directional valve 24 obtain electric, and right side conducting, oil inlet is changed by 3-position 4-way electromagnetism
Enter hydraulic cylinder rodless cavity after to valve 24, hydraulic control one-way valve 23, synchronous valve 4, hydraulic cylinder is made to drive cleaning shoe 1 and its upper limit position block
6 move towards to rise vertically along sliding locating slot 7, until reaching good scrapes mud effect.When needing replacing cleaning shoe 1, is pressed
Two switches (i.e. declines button), the coil of the second relay K2 obtain electric, the normally opened contact closure of the second relay K2,3-position 4-way
Second electromagnet Y2 of solenoid directional control valve 24 obtain it is electric, left side conducting, oil circuit flow to hydraulic cylinder rod chamber, while reaching fluid-control one-way
Valve 23, and hydraulic control one-way valve 13 is opened, so that its rodless cavity is formed oil return circuit, flow to fuel tank 13, hydraulic cylinder drives under cleaning shoe 1
Drop replaces same specification cleaning shoe 1.
Wherein, C65N 1P C6A type Schneider miniature circuit breaker can be used in miniature circuit breakers, and first switch and the second switch can
Using ZB4-BW333 type button switch, 34.7024.0010 type Finder 24V is can be used in the first relay and the second relay
Relay.
As a kind of specific embodiment of shield machine belt mud-scraping apparatus control system provided by the utility model, ask
Refering to Fig. 3, electric-control system 5 includes first switch, the first relay, second switch and the second relay, the line of the first relay
Circle, the first electromagnet of three-position four-way electromagnetic directional valve 24, the normally opened contact of the first relay and first switch are sequentially connected in series simultaneously
Form the first current supply circuit 51 that the first valve body for controlling three-position four-way electromagnetic directional valve 24 is connected or is closed, the second relay
The coil of device, the second electromagnet of three-position four-way electromagnetic directional valve 24, the normally opened contact of the second relay and second switch are successively
Connect and formed the second current supply circuit 52 of the conducting of the second valve body or closure for controlling three-position four-way electromagnetic directional valve 24.
As a kind of specific embodiment of shield machine belt mud-scraping apparatus control system provided by the utility model, ask
Refering to Fig. 3, the first current supply circuit 51 and the second current supply circuit 52 are also electrically connected to a power source by miniature circuit breakers respectively.
Miniature circuit breakers, as needed by 5 on and off of electric-control system, improve the peace that control system uses convenient for user
Full property and convenient for energy conservation.
As a kind of specific embodiment of shield machine belt mud-scraping apparatus control system provided by the utility model, ask
Refering to Fig. 3, the first current supply circuit 51 and the second current supply circuit 52 are also electrically connected by emergency stop switch with miniature circuit breakers respectively.
The setting of emergency stop switch can stop working immediately after being convenient for device fails, prevent from damaging or losing expanding.
ZB4-BS844 type button switch can be used in emergency stop switch.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model
Protection scope within.
Claims (10)
1. shield machine belt mud-scraping apparatus control system, it is characterised in that: including for driving cleaning shoe (1) to move up and down
Hydraulic cylinder (3) and the hydraulic control system (2) risen or fallen for controlling the hydraulic cylinder (3), the hydraulic control system
It (2) include interconnected main oil feed line (21) and synchronous oil circuit (22), one end of the main oil feed line (21) is by subtracting
Pressure valve (29) is connected to fuel tank (25), the other end of the main oil feed line (21) by hydraulic control one-way valve (23) with it is described synchronous
One end of oil circuit (22) is connected to, and the rodless cavity of the synchronous oil circuit (22) and two hydraulic cylinders (3) is respectively communicated with, two institutes
The rod chamber for stating hydraulic cylinder (3) passes through three-position four-way electromagnetic directional valve (24) respectively and is connected to the fuel tank (25), and described three
Four-way electromagnetic reversing valve (24) is electrically connected with electric-control system (5).
2. shield machine belt mud-scraping apparatus control system as described in claim 1, it is characterised in that: the synchronous oil circuit
It (22) include the first branch (221) and second branch (222) being respectively communicated with the rodless cavity of two hydraulic cylinders (3), institute
The first branch (221) and the second branch (222) is stated to be connected to by synchronous valve (4) with the hydraulic control one-way valve (23) respectively.
3. shield machine belt mud-scraping apparatus control system as claimed in claim 2, it is characterised in that: the synchronous valve (4)
Including being arranged in the first throttle valve group (41) on the first branch (221) and being arranged on the second branch (222)
Second throttle group (42).
4. shield machine belt mud-scraping apparatus control system as claimed in claim 3, it is characterised in that: the first throttle valve
Group (41) includes the first positive throttle valve (411) and the first reversed throttle valve (412) being serially connected, the described first positive throttling
Valve (411) is arranged between the hydraulic control one-way valve (23) and the first reversed throttle valve (412), the described first reversed throttling
Valve (412) setting is between the described first positive throttle valve (411) and the hydraulic cylinder (3)；The second throttle group (42)
The second positive throttle valve (421) and the second reversed throttle valve (422) including being serially connected, the described second positive throttle valve
(421) it is arranged between the hydraulic control one-way valve (23) and the second reversed throttle valve (422), the second reversed throttle valve
(422) setting is between the described second positive throttle valve (421) and the hydraulic cylinder (3).
5. such as the described in any item shield machine belt mud-scraping apparatus control systems of claim 2-4, it is characterised in that: the master
Oil feed line (21) includes the first oil feed line (211), is provided with inserted valve (26), institute on first oil feed line (211)
The oil inlet of inserted valve (26) is stated to be connected to by the pressure reducing valve (29) with the fuel tank (25), the inserted valve (26) it is fuel-displaced
Mouth is connected to the oil inlet of the hydraulic control one-way valve (23), and the control mouth of the inserted valve (26) is connected to the synchronous valve (4).
6. shield machine belt mud-scraping apparatus control system as claimed in claim 5, it is characterised in that: the main oil feed line
It (21) further include second oil feed line (212) in parallel with the first oil feed line (211), second oil feed line
(212) it is provided on hand hydraulic control valve (27), the oil inlet of the hand hydraulic control valve (27) passes through the pressure reducing valve (29) and institute
Fuel tank (25) connection is stated, the oil outlet of the hand hydraulic control valve (27) passes through check valve (28) and the hydraulic control one-way valve (23)
Oil inlet connection.
7. shield machine belt mud-scraping apparatus control system as claimed in claim 5, it is characterised in that: the main oil feed line
It (21) further include the third oil feed line (213) in parallel with the first oil feed line (211), the third oil feed line
(213) pressure reducing valve (29), the three-position four-way electromagnetic directional valve (24) and the hydraulic control one-way valve are sequentially connected in series for connection
(23) oil feed line.
8. shield machine belt mud-scraping apparatus control system as claimed in claim 7, it is characterised in that: the electric-control system
It (5) include first switch, the first relay, second switch and the second relay, it is the coil of first relay, three described
First electromagnet of four-way electromagnetic reversing valve (24), the normally opened contact of first relay and the first switch are sequentially connected in series
And form the first current supply circuit that the first valve body for controlling the three-position four-way electromagnetic directional valve (24) is connected or is closed
(51), the coil of second relay, the second electromagnet of the three-position four-way electromagnetic directional valve (24), second relay
The normally opened contact of device and the second switch are sequentially connected in series and are formed for controlling the three-position four-way electromagnetic directional valve (24)
The second current supply circuit (52) of the conducting of second valve body or closure.
9. shield machine belt mud-scraping apparatus control system as claimed in claim 8, it is characterised in that: described first powers back
Road (51) and second current supply circuit (52) are also electrically connected to a power source by miniature circuit breakers respectively.
10. shield machine belt mud-scraping apparatus control system as claimed in claim 9, it is characterised in that: first power supply
Circuit (51) and second current supply circuit (52) are also electrically connected by emergency stop switch with the miniature circuit breakers respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821743589.4U CN209277892U (en) | 2018-10-25 | 2018-10-25 | Shield machine belt mud-scraping apparatus control system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821743589.4U CN209277892U (en) | 2018-10-25 | 2018-10-25 | Shield machine belt mud-scraping apparatus control system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209277892U true CN209277892U (en) | 2019-08-20 |
Family
ID=67599435
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821743589.4U Expired - Fee Related CN209277892U (en) | 2018-10-25 | 2018-10-25 | Shield machine belt mud-scraping apparatus control system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209277892U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112607366A (en) * | 2020-12-16 | 2021-04-06 | 山东大学 | Movable belt mud scraping device and method for shield machine |
-
2018
- 2018-10-25 CN CN201821743589.4U patent/CN209277892U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112607366A (en) * | 2020-12-16 | 2021-04-06 | 山东大学 | Movable belt mud scraping device and method for shield machine |
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