Summary of the invention
The purpose of the present invention is to provide a kind of shield machine belt scrapers, it is intended to solve existing cleaning shoe and scrape mud effect notThe technical issues of good and cleaning shoe can not be adjusted at a distance from belt.
To achieve the above object, the technical solution adopted by the present invention is that: a kind of shield machine belt scraper is provided, comprising:Fixing seat is arranged in the belt fixed frame of shield machine, and the cavity of opening upwards is provided in the fixing seat；
Cleaning shoe is plugged in the cavity；
Lifting device, top are connect with the cleaning shoe, and bottom is arranged in the belt fixed frame or the fixing seat,For driving the cleaning shoe to move up and down, and the lifting device is electrically connected to the control system.
Further, left and right occurs when being provided on the side wall of the cleaning shoe for preventing the cleaning shoe from moving up and downThe limited block of offset is provided on the side wall of the fixing seat for accommodating the limited block and sliding up and down for the limited blockSliding locating slot, the limited block passes through and the sliding locating slot and extends in outside the fixing seat.
Further, the lifting device passes through the mounting base being arranged on the cleaning shoe and connect with the cleaning shoe.
Further, the fixing seat includes main body and the mounting plate for being symmetricly set on the main body two sides, the installationPlate is fixedly connected with the belt fixed frame, and the main body is opening up U-type groove, and the U-type groove is the cavity, describedLifting device is arranged on the mounting plate.
Further, the limited block is the bolt being threadedly coupled with the cleaning shoe, and the lifting device is hydraulic cylinder,The hydraulic cylinder is two, and is separately positioned on the both ends of the cleaning shoe, is connect at the top of the hydraulic cylinder with the cleaning shoe,Bottom is arranged in the belt fixed frame or the fixing seat, and the hydraulic cylinder is electrically connected with the control system.
Further, the control system includes interconnected main oil feed line and synchronous oil circuit, the main fuel feed pumpThe one end on road is connected to by pressure reducing valve with fuel tank, and the other end of the main oil feed line passes through hydraulic control one-way valve and the synchronous oilThe one end on road is connected to, and the rodless cavity of the synchronous oil circuit and two hydraulic cylinders is respectively communicated with, and two hydraulic cylinders haveRod cavity 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 electric-control systemElectrical connection.
Further, the synchronous oil circuit include the first branch being respectively communicated with the rodless cavity of two hydraulic cylinders andSecond 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 main oil feed line includes the first oil feed line parallel with one another, the second oil feed line and thirdOil feed line, inserted valve is provided on first oil feed line, and the oil inlet of the inserted valve passes through the pressure reducing valve and instituteFuel tank connection is stated, the oil outlet of the inserted valve is connected to the oil inlet of the hydraulic control one-way valve, the control mouth of the inserted valveIt is connected to the synchronous valve；Hand hydraulic control valve is provided on second oil feed line, the oil inlet of the hand hydraulic control valve is logicalIt crosses the pressure reducing valve to be connected to the fuel tank, the oil outlet of the hand hydraulic control valve passes through check valve and the hydraulic control one-way valveOil inlet connection；The third oil feed line be sequentially connected in series the connection pressure reducing valve, the three-position four-way electromagnetic directional valve andThe oil feed line of the hydraulic control one-way valve.
Further, the electric-control system includes first switch, the first relay, second switch and the second relay, instituteState the normally opened touching of the coil of the first relay, the first electromagnet of the three-position four-way electromagnetic directional valve, first relayPoint 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 orFirst current supply circuit of closure, the coil of second relay, the second electromagnet of the three-position four-way electromagnetic directional valve, instituteThe 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 electromagnetismThe second current supply circuit for being connected or being closed to the second valve body of valve, first current supply circuit and second current supply circuit also divideIt is not electrically connected to a power source by miniature circuit breakers.
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 scraper provided by the invention is: compared with prior art, shield of the present inventionMachine belt scraper improves the mud-scraping apparatus of lower belt on existing shield machine, has been set to fixing seat, has scraped mudThe form that plate and lifting device are combined.Wherein, the setting of lifting device realizes cleaning shoe apart from shield machine lower belt spacingAdjustability so that after being worn at the top of cleaning shoe control system or user can as the case may be quickly to cleaning shoe and underBeing adjusted between belt indirectly, it is ensured that the mud effect of scraping of shield machine belt scraper remains preferable state and puts downStability is excellent.Lifting device is set as two and then ensures the stability of cleaning shoe both ends stress, while ensuring lower belt notWith region to scrape mud effect consistent.The setting of fixing seat is so that swing will not occur when in use or can only be very for cleaning shoeIn small section (i.e. in the width range of cavity) swing, effectively prevent lower belt foundry loam it is more when cleaning shoe occur therewith greatlyThe phenomenon that mud effect is scraped in amplitude offset influence generation, and then ensure that cleaning shoe is good and scrape mud effect, while reducing useThe risk that lifting device is damaged in the process.
Through testing, using shield machine belt scraper provided by the present invention, in shield machine progradation, base on beltThis does not fall dregs, also not damaged to belt, improves construction efficiency, guarantees personnel's construction safety, and greatly reduce oneThe failure rate of a little equipment, go on smoothly construction can.In conclusion shield machine belt provided by through the invention scrapes mudDevice can effectively eliminate shield machine lower belt dregs, ensure that the normal construction of construction personnel, tunnel cleaning, and shield machineOn each component it is without damage, improve construction efficiency.This equipment is particularly suitable for clay silt, flour sand and fine sand stratum, hasVery big popularization space.
Specific embodiment
In order to which technical problems, technical solutions and advantages to be solved are more clearly understood, tie belowAccompanying drawings and embodiments are closed, the present invention will be described in further detail.It should be appreciated that specific embodiment described herein is onlyTo explain the present invention, it is not intended to limit the present invention.
Also referring to Fig. 1 to Fig. 3, now shield machine belt scraper provided in an embodiment of the present invention is illustrated.InstituteShield machine belt scraper, including fixing seat 1 are stated, is arranged in the belt fixed frame 10 of shield machine, and is provided in fixing seat 1The cavity 3 of opening upwards；Cleaning shoe 4 is plugged in cavity 3；Lifting device 8, top are connect with cleaning shoe 4, and bottom setting existsIn belt fixed frame 10 or fixing seat 1, for driving cleaning shoe 4 to move up and down, and lifting device 8 is electrically connected with control system 2.
In use, fixing seat 1 is mounted in belt fixed frame 10, cleaning shoe 4 is plugged in the cavity 3 of fixing seat 1,And lifting device 8 is fixed in belt fixed frame 10 or fixing seat 1, after good position is installed, is controlled and gone up and down by control system 2The height of device 8, so that 4 top of cleaning shoe is abutted with the lower belt 13 of shield machine, the rotation of belt therewith later, cleaning shoe 4Lower belt 13 is carried out to scrape mud operation.When wearing at the top of cleaning shoe 4, the height of lifting device 8 is further adjusted, so thatCleaning shoe 4 is abutted with lower belt 13 again.Then lifting device 8 is highly reduced when cleaning shoe 4 needs replacing, by cleaning shoe 4It removes and is replaced.
Shield machine belt scraper provided by the invention, compared with prior art, the present invention is to hypodermis on existing shield machineMud-scraping apparatus with 13 is improved, and the form that fixing seat 1, cleaning shoe 4 and lifting device 8 are combined has been set to.Wherein, the setting of lifting device 8 realizes adjustability of the cleaning shoe 4 apart from 13 spacing of shield machine lower belt, so that cleaning shoe 4 pushes upControl system 2 or user can be as the case may be quickly to tapping between cleaning shoe 4 and lower belt 13 after portion is wornRow adjustment, it is ensured that shield machine belt scraper scrapes that mud effect remains preferable state and stationarity is excellent.Fixing seat 1Setting so that cleaning shoe 4 will not occur when in use swing or can only in the section of very little (the i.e. width model of cavity 3In enclosing) swing, effectively prevent 13 foundry loam of lower belt it is more when cleaning shoe 4 significantly bias effect occur therewith scrape mud effectPhenomenon occurs, and then ensures that cleaning shoe 4 is good and scrape mud effect, while reducing lifting device 8 in use process and damagingBad risk.
Through field test, using shield machine belt scraper provided by the present invention, in shield machine progradation, beltOn do not fall dregs substantially, it is also not damaged to belt, improve construction efficiency, guarantee personnel's construction safety, and substantially reduceThe failure rates of some equipment go on smoothly construction can.In conclusion shield machine belt provided by through the invention is scrapedMud device can effectively eliminate shield machine lower belt dregs, ensure that the normal construction of construction personnel, tunnel cleaning, and shieldEach component on machine is without damage, improves construction efficiency.This equipment is particularly suitable for clay silt, flour sand and fine sand stratum,There is very big popularization space.
Lifting device 8 can be existing for the markets such as hydraulic cylinder, electric cylinders, cylinder and can pass through control system in the present embodimentSystem 2 automatically controls the lifting device of lifting.
As a kind of specific embodiment of shield machine belt scraper provided by the invention, Fig. 1 and Fig. 2 is please referred to, is scrapedThe limited block 6 of left and right offset, the side of fixing seat 1 occur when be provided on the side wall of mud plate 4 for preventing cleaning shoe 4 from moving up and downIt is provided on wall for holding limit block 6 and the sliding locating slot 7 that is slided up and down for limited block 6, limited block 6 passes through sliding positioningIt slot 7 and extends in outside fixing seat 1.
The setting of limited block 6 and sliding locating slot 7 is so that cleaning shoe 4 moves up and down under the drive of lifting device 8Left and right offset occurs for Shi Buhui, and then ensures that cleaning shoe 4 and the contact area of lower belt 13 immobilize, it is ensured that cleaning shoe4 scrape the stability of mud effect, while ensuring the stability of 8 stress of lifting device, ensure that its longer service life.
It as a kind of specific embodiment of shield machine belt scraper provided by the invention, please refers to Fig.1 to Fig.3, risesFalling unit 8 passes through the mounting base 9 being arranged on cleaning shoe 4 and connect with cleaning shoe 4.
The setting of mounting base 9 is so that lifting device 8 can be stably connected with cleaning shoe 4, and not will receive cleaning shoe 4 width itselfThe limitation of degree installs more convenient.
Mounting base 9 is detachably connected respectively with cleaning shoe 4 and lifting device 8 in the present embodiment, and setting in this way effectively improvesThe convenience operated when cleaning shoe 4 or the installation of lifting device 8 or replacement.4 length of cleaning shoe is greater than fixing seat 1 in the present embodimentLength, the setting of mounting base 9 is in 1 outside of fixing seat.
As a kind of specific embodiment of shield machine belt scraper provided by the invention, please refer to Fig.1 to Fig.3, GuReservation 1 includes main body 11 and the mounting plate 12 for being symmetricly set on 11 two sides of main body, and mounting plate 12 and belt fixed frame 10, which are fixed, to be connectedIt connects, main body 11 is opening up U-type groove, and U-type groove is cavity 3, and lifting device 8 is arranged on mounting plate 12.Lifting device 8 is pacifiedIn fixing seat 1, equipment is assembled progress integrated marketing in factory by quotient easy to produce or carrying, this setting effectively improveThe convenience of equipment conveying and carrying, while reducing the risk that components are emptied one's bowels.
Mounting plate 12 is detachably fixed with belt fixed frame 10 by bolt and is connect in the present embodiment.
It as a kind of specific embodiment of shield machine belt scraper provided by the invention, please refers to Fig.1 to Fig.3, limitsPosition block 6 is the bolt being threadedly coupled with cleaning shoe 4, and lifting device 8 is hydraulic cylinder, and hydraulic cylinder is two, and is separately positioned on and scrapesThe both ends of mud plate 4, hydraulic cylinder top are connect with cleaning shoe 4, and bottom is arranged in belt fixed frame 10 or fixing seat 1, and hydraulicCylinder is electrically connected with control system 2.
Limited block 6 uses bolt, realizes being detachably connected for limited block 6 and cleaning shoe 4, convenient for user general as neededCleaning shoe 4 is by taking out or loading onto fixing seat 1.Limited block 6 uses bolt simultaneously, also adds the multifunctionality of limited block 6.WhenWhen equipment normal use, bolt can not be tightened, and acting only as can use with the limited block 6 that cleaning shoe 4 moves up and down；Work as liftingDevice 8 breaks down when needing replacing, and can tighten bolt, so that cleaning shoe 4 is fixed in fixing seat 1, at this moment bolt can be madeIt is used for the fixing piece of cleaning shoe 4 and fixing seat 1, this setting, which effectively increases, to be operated when the installation of lifting device 8 and disassemblyConvenience and safety.
Lifting device 8 uses hydraulic cylinder, and materials are convenient, and sufficiently large to the jacking force of cleaning shoe 4, it is ensured that cleaning shoe 4Preferably scrape mud effect.Lifting device 8 is set as two stability for then ensuring 4 both ends stress of cleaning shoe, ensures simultaneously13 different zones of lower belt to scrape mud effect consistent.
As a kind of specific embodiment of shield machine belt scraper provided by the invention, refering to Fig. 4, control system 2Including interconnected main oil feed line 21 and synchronous oil circuit 22, one end of main oil feed line 21 passes through pressure reducing valve 29 and fuel tank 25Connection, the other end of main oil feed line 21 are connected to by hydraulic control one-way valve 23 with one end of synchronous oil circuit 22, synchronize oil circuit 22 andThe rodless cavity of two hydraulic cylinders is respectively communicated with, and the rod chamber of two hydraulic cylinders passes through three-position four-way electromagnetic directional valve 24 and oil respectivelyCase 25 is connected to, and three-position four-way electromagnetic directional valve 24 is electrically connected with electric-control system 5.
When cleaning shoe 4 needs to increase, electric-control system 5 controls to be connected on the right side of three-position four-way electromagnetic directional valve 24, main fuel feedingPipeline 21 is connected, and the hydraulic oil in fuel tank 25 is supplied synchronous oil circuit 22 through hydraulic control one-way valve 23, synchronous oil circuit 22 by oil circuit intoRow synchronizes fuel feeding to the rodless cavity of two hydraulic cylinders respectively after shunting, and controls two hydraulic cylinder synchronous and rises, has bar in hydraulic cylinderIntracavitary hydraulic oil is then back in fuel tank 25 through three-position four-way electromagnetic directional valve 24.When cleaning shoe 4 works, electric-control system 5Position work in three-position four-way electromagnetic directional valve 24 is controlled, the oil circuit of hydraulic system is blocked, keeps hydraulic cylinder highly stable.When scrapingWhen mud plate 4 needs replacing, electric-control system 5 controls to be connected on the left of three-position four-way electromagnetic directional valve 24, and system starts to have to hydraulic cylinderRod cavity fuel feeding, the hydraulic oil of hydraulic cylinder rodless cavity then pass sequentially through hydraulic control one-way valve 23, three-position four-way electromagnetic directional valve 24 to oilReflux in case 25.
As a kind of specific embodiment of shield machine belt scraper provided by the invention, refering to Fig. 4, synchronous oil circuit 22Including the first branch 221 and second branch 222 being respectively communicated with the rodless cavity of two hydraulic cylinders, the first branch 221 and secondBranch 222 is connected to by synchronous valve 223 with hydraulic control one-way valve 23 respectively.The present invention realizes two by the setting of synchronous oil circuit 22The synchronously control of a hydraulic cylinder, it is ensured that the consistency of 4 both ends stress of cleaning shoe.
Existing two-way synchronous valve or throttle valve in the market can be used in synchronous valve 223 in the present embodiment, as long as can makeOne 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 scraper provided by the invention, refering to Fig. 4, main oil feed line21 include the first oil feed line 211 parallel with one another, the second oil feed line 212 and third oil feed line 213, the first oil feed lineInserted valve 26 is provided on 211, the oil inlet of inserted valve 26 is connected to by pressure reducing valve 29 with fuel tank 25, the oil outlet of inserted valve 26It is connected to the oil inlet of hydraulic control one-way valve 23, the control mouth of inserted valve 26 is connected to synchronous valve 223；On second oil feed line 212It is provided with hand hydraulic control valve 27, the oil inlet of hand hydraulic control valve 27 is connected to by pressure reducing valve 29 with fuel tank 25, hand hydraulic control valve 27Oil outlet be connected to the oil inlet of hydraulic control one-way valve 23 by check valve 28；Third oil feed line 213 is to be sequentially connected in series connectionThe oil feed line of pressure reducing valve 29, three-position four-way electromagnetic directional valve 24 and hydraulic control one-way valve 23.
As a kind of specific embodiment of shield machine belt scraper provided by the invention, refering to Fig. 5, electric-control system 5Including first switch, the first relay, second switch and the second relay, coil, the 3-position 4-way electromagnetism of the first relay are changedIt is sequentially connected in series and is formed for controlling three four to the first electromagnet of valve 24, the normally opened contact of the first relay and first switchFirst valve body of electric change valve 24 is connected or the first current supply circuit 51 of closure, coil, the 3-position 4-way of the second relaySecond electromagnet of solenoid directional control valve 24, the normally opened contact of the second relay and second switch are sequentially connected in series and are formed for controllingSecond valve body of three-position four-way electromagnetic directional valve 24 is connected or the second current supply circuit 52 of closure, the first current supply circuit 51 and secondCurrent supply circuit 52 is also electrically connected to a power source by miniature circuit breakers respectively.
Three kinds of oil feed lines parallel with one another (i.e. first oil feed lines 211, the second oil feed line are provided in the present invention212 and third oil feed line 213), these three oil feed lines represent three kinds of hydraulic cylinder control modes, are respectively as follows: automatic control, handDynamic control, electrichydraulic control mode.The working principle of three kinds of control modes is as follows:
1. automatic control mode
It after each component is installed in shield machine belt scraper, is automatically controlled to realize, first skin in adjustment shield machineBand tension, reaches effect of preferably slagging tap；Secondly, well scraping mud effect according to what cleaning shoe 4 and lower belt 13 were formed and determiningThe pressure of hydraulic cylinder rodless cavity, so that it is determined that the pressure difference of pressure reducing valve 29 and inserted valve 26.After cleaning shoe 4 is worn, with lower belt13 form certain gap, and inserted valve 26 detects that hydraulic cylinder rodless cavity pressure declines at this time, and pressure reducing valve 29 is passed through in oil inlet at this time,Open inserted valve 26, oil circuit flows at hydraulic control one-way valve 23, synchronized valve 223 enter after shunting two hydraulic cylinders without barChamber, 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 makesControl system 2 can realize the automatic detection of cylinder pressure, i.e. the automatic detection whether worn of cleaning shoe 4, and scrapingAfter mud plate 4 is worn, automatically controls lifting device 8 (hydraulic cylinder) and cleaning shoe 4 is driven to rise, so that realizing shield machine belt scrapes mudThe automatic detection and adjustment of spacing, improve the degree of automation of equipment entirety, improve working efficiency, protect between device and lower belt 13It has lived equipment and has well smoothly scraped mud effect.
2. manual control mode
Pressure reducing valve 29 is flowed through quoted from the oil circuit of auxiliary hydraulic system, reaches at hand hydraulic control valve 4, presses hand hydraulic control valve 4,Oil circuit is connected up and down, and hydraulic cylinder rodless cavity is reached after check valve 28, hydraulic control one-way valve 23, synchronous valve 223, drives hydraulic cylinderCleaning shoe 4 and its upper limit position block 6 move towards to rise vertically along sliding locating slot 7, until reaching good scrapes mud effect.
3. electrichydraulic control mode
Introduce 24V supply voltage, miniature circuit breakers F1 close a floodgate, emergency stop switch S1 state is normal, press first switch SB1 byButton, the coil of the first relay K1 obtain electric, the normally opened contact of the first relay K1 closure, and the of three-position four-way electromagnetic directional valve 24One electromagnet Y1 obtains electric, and three-position four-way electromagnetic directional valve 24, fluid-control one-way are passed through in the first valve body (i.e. right side valve body) conducting, oil inletEnter hydraulic cylinder rodless cavity after valve 23, synchronous valve 223, hydraulic cylinder is made to drive cleaning shoe 4 and its upper limit position block 6 along sliding locating slot7 trends are vertical to be risen, until reaching good scrapes mud effect.When needing replacing cleaning shoe 4, presses second switch and (declineButton), the coil of the second relay K2 obtains electric, the normally opened contact closure of the second relay K2, three-position four-way electromagnetic directional valve 24The second electromagnet Y2 obtain electric, the second valve body (i.e. left side valve body) conducting, oil circuit flow to hydraulic cylinder rod chamber, while reaching hydraulic controlCheck 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, mud is scraped in hydraulic cylinder drivePlate 4 declines, and replaces same specification cleaning shoe 4.
Wherein, C65N 1P C6A type Schneider miniature circuit breaker can be used in miniature circuit breakers, and first switch and the second switch canUsing ZB4-BW333 type button switch, 34.7024.0010 type Finder 24V is can be used in the first relay and the second relayRelay.
As a kind of specific embodiment of shield machine belt scraper provided by the invention, referring to Fig. 5, the first power supplyCircuit 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 foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the inventionMade any modifications, equivalent replacements, and improvements etc., should all be included in the protection scope of the present invention within mind and principle.