CN106226003A - Shield machine shield ventral brush sealing property tester and test method - Google Patents
Shield machine shield ventral brush sealing property tester and test method Download PDFInfo
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- CN106226003A CN106226003A CN201610854077.4A CN201610854077A CN106226003A CN 106226003 A CN106226003 A CN 106226003A CN 201610854077 A CN201610854077 A CN 201610854077A CN 106226003 A CN106226003 A CN 106226003A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
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Abstract
The invention discloses a kind of shield machine shield ventral brush sealing property tester and test method.This assay device includes installing rack, inner barrel and outer cylinder body, inner barrel and outer cylinder body is the most removable is arranged on installing rack, inner barrel coaxial sleeve is located in outer cylinder body, for the annular gap for assembling shield ventral brush assembly to be measured between inwall and the outer wall of inner barrel of outer cylinder body；Also include the upper sealing member of the upper port for sealing annular gap and for sealing the lower seal of the lower port of annular gap, and the hand-hole for injection testing medium.By shield ventral brush assembly to be measured is located in annular gap, the working condition of simulation shield machine shield ventral brush, test the impact on shield ventral brush sealing property of different types of oils and fats.Shield ventral brush is tested the market demand that records in the research and development of new equipment, the design of shield ventral brush can be optimized, strengthen shield ventral brush reliability at work and ruggedness, rationally reduce the cost of equipment.
Description
Technical field
The present invention relates to the shield ventral brush technical field on shield tail shield, particularly to a kind of shield machine shield ventral brush sealing
Can assay device and test method.
Background technology
The shield ventral brush of shield machine is arranged between rear end and the section of jurisdiction of shield tail shield shield body, effect be prevent subsoil water,
Sandy soil, slip casting enter between the gap of section of jurisdiction and shield body.Shield tail shield internal welding is connected to three seals brush, this sealing brush i.e. shield
Ventral brush, shield ventral brush is separated out seal oil chamber between section of jurisdiction and tail shield, injects seal grease, prevent during driving in seal oil chamber
Water, silt enter inside shield machine.Tail shield also has injected hole, for the synchronous grouting of section of jurisdiction, fills section of jurisdiction and leave tail shield
Space afterwards and between stratum, if shield ventral brush damages causes seepage, can affect the mud and water balance in excavation storehouse, front, pollute shield pipe
Sheet assembly working region, bring inconvenience to pipe sheet assembling, increase seal grease consumption, time serious, the normal of shield machine will be affected
Driving, causes surface subsidence to be difficult to control to.
Following factor can affect the sealing property of shield machine shield ventral brush: one is shield tail dissimilar, various sizes of
The sealing property of brush is had any different；Two is mounting means and the decrement meeting between section of jurisdiction and tail shield shield body of the shield ventral brush of shield ventral brush
Affect shield ventral brush sealing property and service life；Three is that the interior different types of oils and fats added of seal oil chamber can affect shield ventral brush
Water pressure resistance ability；Four is that the pressure of the muddy water that shield ventral brush is subject to can affect its sealing property.
Shield ventral brush is tested, the research and development of the market demand that records of test to new equipment and feed back to the work of shield ventral brush
Make in environment, the design of shield ventral brush can be optimized, strengthen reliability and the ruggedness of shield ventral brush work, rationally reduce the one-tenth of equipment
This.At present, also there is no a kind of assay device based on above-mentioned factor, shield ventral brush can tested.
For these reasons, it is necessary to a kind of shield machine shield ventral brush sealing property tester and test method are provided.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of shield machine shield ventral brush sealing property tester and test side
Method, this assay device can be simulated the working condition of shield machine shield ventral brush, and be tried the sealing property of shield machine shield ventral brush
Test.
The present invention another to solve the technical problem that being to provide a kind of shield machine shield ventral brush experiments of sealing performance method comes
The sealing property of test shield machine shield ventral brush.
For shield machine shield this technical theme of ventral brush sealing property tester of the present invention, a technology of employing
Scheme is: provide a kind of shield machine shield ventral brush sealing property tester, including: installing rack, inner barrel and outer cylinder body, this inner core
Body and outer cylinder body is the most removable is arranged on this installing rack, this inner barrel coaxial sleeve is located in this outer cylinder body, the inwall of this outer cylinder body
And for the annular gap for assembling shield ventral brush assembly to be measured between the outer wall of this inner barrel；For sealing this annular gap
The upper sealing member of port and for sealing the lower seal of the lower port of this annular gap, on this, sealing member and lower seal should
Annular seal space is closed in annular gap；This annular seal space is divided into the cavity that at least two is mutually isolated by this shield ventral brush assembly to be measured,
All offer on the periphery wall of this cavity be in communication with the outside for the hand-hole of injection testing medium in corresponding cavity.
In another embodiment of shield machine shield ventral brush sealing property tester of the present invention, this shield ventral brush assembly to be measured
Being further opened with at least one mounting interface on the periphery wall of the cavity being separated out in this annular gap, this mounting interface connects to be had
Manual ball valve, Pressure gauge and/or pressure transducer.
In another embodiment of shield machine shield ventral brush sealing property tester of the present invention, on this, sealing member is end
Lid, the upper end of this inner barrel is positioned at the upper end of this outer cylinder body, and this end cap lid is located at the upper end of this inner barrel, the lid of this end cap
The lower surface of perisporium is tightly connected with the upper surface of this outer cylinder body, and the periphery wall of this annular seal space is by the lid of this outer cylinder body He this end cap
Perisporium forms.
In another embodiment of shield machine shield ventral brush sealing property tester of the present invention, this lower seal includes close
Seal washer and compressing member, this installing rack is provided with support seat, and this seal washer is arranged on the lower end of this outer cylinder body and this inner barrel
Between the upper surface of face and this support seat, between this outer cylinder body and the lower end of inner barrel and this support seat by this compressing member even
Connect.
In another embodiment of shield machine shield ventral brush sealing property tester of the present invention, this shield ventral brush assembly to be measured
Including three shield ventral brushes, the cavity that this annular seal space is separated out by these three shield ventral brushes is four, including a muddy water chamber topmost
Three oils and fats cavitys below body and this muddy water cavity；This hand-hole includes the oils and fats note offered on the periphery wall of this oils and fats cavity
The muddy water hand-hole offered on the periphery wall of hand-hole and this muddy water cavity, wherein, along week on the periphery wall of this oils and fats cavity each
To uniformly laying three these oils and fats hand-holes.
In another embodiment of shield machine shield ventral brush sealing property tester of the present invention, the periphery of this muddy water cavity
The overflow valve interface for connecting overflow valve it is further opened with on wall.
In another embodiment of shield machine shield ventral brush sealing property tester of the present invention, this installing rack is provided with
Through this inner barrel inner chamber for by this end cap jack-up or the hydraulic jack that pulls down, the back seat of the cylinder barrel of this hydraulic jack
Releasable connection is on this installing rack, and the top releasable connection of the piston rod of this hydraulic jack is on this end cap.
In another embodiment of shield machine shield ventral brush sealing property tester of the present invention, this hydraulic jack is three
Individual, vertically it is distributed in the inner chamber of this inner barrel.
Present invention also offers a kind of shield machine shield ventral brush experiments of sealing performance method, comprise the steps:
Three height are H by the first step1Shield ventral brush to be measured be equidistantly welded on the inwall of this outer cylinder body, use lifting
This end cap is sling by machine, and the lower end of the upper end of this outer cylinder body with the lid perisporium of this end cap is connected and is fastened, this hydraulic jack
The top of piston rod is fixedly connected on this end cap；
Second step, is set in the upper end of this inner barrel, by this hydraulic jack by the lower port of this outer cylinder body in lifting
The outer cylinder body being connected with this end cap by this end cap and the shield ventral brush to be measured being welded on the inwall of this outer cylinder body pull down,
Until the lower surface of this outer cylinder body and the upper surface of this seal washer, the lower end of this outer cylinder body is fastened on this installing rack,
This annular seal space is separated out four cavitys by these three shield ventral brushes to be measured, including a muddy water cavity topmost and this muddy water cavity
Three following oils and fats cavitys, then the upper surface of this inner barrel is fastenedly connected on this end cap；
3rd step, three these oils and fats cavitys are connected to measure corresponding oils and fats cavity by corresponding mounting interface respectively
The Pressure gauge of middle pressure of grease size and whether have the manual ball valve of oils and fats and muddy water in the oils and fats cavity observing correspondence,
This muddy water cavity is connected to measure the pressure of mud hydraulic pressure size in this muddy water cavity by corresponding mounting interface
Power table and for observing the manual ball valve whether having oils and fats in this muddy water cavity, and on this overflow valve interface, connect overflow valve；
4th step, respectively by the oils and fats hand-hole connection oil pump corresponding with three these oils and fats cavitys, and to correspondence
Injecting oils and fats in oils and fats cavity, the pressure of the oils and fats injected in three these oils and fats cavitys reaches 0.2 MPa and i.e. stops pumping,
In this muddy water cavity, muddy water is injected, when in this muddy water cavity, the pressure of muddy water reaches by this muddy water hand-hole
Stop when 0.2 MPa injecting；
Muddy water in this muddy water cavity and the oils and fats pressurize in three these oils and fats cavitys 12 hours；
5th step, will open with the manual ball valve corresponding to three these oils and fats cavitys successively, the oils and fats cavity that detection is corresponding
In whether be full of oils and fats and whether exist by the muddy water being permeated in this muddy water cavity；Open corresponding with this muddy water cavity
Whether manual ball valve detects in this muddy water cavity and exists by the oils and fats being permeated in oils and fats cavity；
6th step, dismantles this outer cylinder body, measures and record this shield ventral brush residual altitude H after experiment2, calculate and record
The deformation quantity L of this shield ventral brush, wherein L=H1-H2。
In another embodiment of the present invention a kind of shield machine shield ventral brush experiments of sealing performance method, the 6th step is torn open
Unload the step of this outer cylinder body particularly as follows:
First, the oil pump three these oils and fats cavity correspondences connected and the Pressure gauge of corresponding installation, manual ball valve, this muddy water
Pressure gauge, manual ball valve and overflow valve that cavity is installed are removed；
Secondly, by the connection between lower end and the upper end of this outer cylinder body of this lid perisporium, and the lower end of this inner barrel with
Connection between this installing rack is removed in the lump, and the piston rod of this hydraulic jack stretches out this end cap together with this inner barrel one top lifting
Rise, take the connection between the piston rod top of this hydraulic jack and this end cap apart, sling this end cap and inner barrel with crane, should
End cap is removed from this installing rack in the lump together with this inner barrel；
Finally, by between lower end and this installing rack of this outer cylinder body connection remove, with crane by this outer cylinder body together with
Shield ventral brush on this outer cylinder body is sling together and is removed from this installing rack.
By such scheme, the invention has the beneficial effects as follows: shield machine shield ventral brush sealing property tester bag of the present invention
Include that installing rack, inner barrel and outer cylinder body, inner barrel and outer cylinder body are the most removable to be arranged on installing rack, outside inner barrel coaxial sleeve is located at
In cylinder, for the annular gap for assembling shield ventral brush assembly to be measured between inwall and the outer wall of inner barrel of outer cylinder body；Also wrap
Include the upper sealing member of the upper port for sealing annular gap and for sealing the lower seal of the lower port of annular gap；To be measured
Annular gap is divided into the cavity that at least two is mutually isolated by shield ventral brush assembly, and cavity all offers in cavity wall and connects with extraneous
Logical is used for the hand-hole of injection testing medium in corresponding cavity.
By shield ventral brush assembly to be measured is located in annular gap, isolate the oils and fats cavity for injecting oils and fats and for
Inject the muddy water cavity of muddy water, the working condition of simulation shield machine shield ventral brush, different types of oils and fats can be tested to shield ventral brush
The impact of sealing property, measures shield ventral brush deformation quantity in annular gap, can test different size, different types of shield tail
The brush impact on sealing property.
Shield ventral brush is tested the market demand that records to the research and development of new equipment and the building ring that feeds back to shield ventral brush
In border, the design of shield ventral brush can be optimized, strengthen shield ventral brush reliability at work and ruggedness, rationally reduce the one-tenth of equipment
This.
Accompanying drawing explanation
Fig. 1 is the structural representation of shield machine shield ventral brush sealing property tester embodiment 1 of the present invention；
Fig. 2 be on the outer cylinder body of shield machine shield ventral brush sealing property tester embodiment 1 of the present invention interface circumference
Distribution schematic diagram；
Fig. 3 be on the lid perisporium of shield machine shield ventral brush sealing property tester embodiment 1 of the present invention interface circumference
Distribution schematic diagram；
Fig. 4 is the structural representation of shield machine shield ventral brush sealing property tester embodiment 2 of the present invention；
Fig. 5 is the structural representation of an embodiment shield ventral brush in shield machine shield ventral brush experiments of sealing performance method of the present invention；
Fig. 6 is the flow process that shield machine shield ventral brush another embodiment of experiments of sealing performance method of the present invention changes shield ventral brush to be measured
Figure.
Detailed description of the invention
For the ease of understanding the present invention, below in conjunction with the accompanying drawings and specific embodiment, the present invention will be described in more detail.
Accompanying drawing gives the preferred embodiment of the present invention.But, the present invention can realize in many different forms, does not limit
In the embodiment described by this specification.On the contrary, provide the purpose of these embodiments to make the disclosure
Understand more thorough comprehensive.
It should be noted that unless otherwise defined, all of technology that this specification is used and scientific terminology with belong to
The implication that the those skilled in the art of the present invention are generally understood that is identical.The term used in the description of the invention is only
It is the purpose in order to describe specific embodiment, is not intended to limit the present invention.The term "and/or" bag that this specification is used
Include the arbitrary and all of combination of one or more relevant Listed Items.
Below in conjunction with the accompanying drawings, various embodiments of the present invention are described in detail.
Embodiment 1
See also the knot that Fig. 1 to Fig. 3, Fig. 1 are shield machine shield ventral brush sealing property tester embodiments 1 of the present invention
Structure schematic diagram, Fig. 2 be on the outer cylinder body of shield machine shield ventral brush sealing property tester embodiment 1 of the present invention interface circumference
Distribution schematic diagram, Fig. 3 be on the lid perisporium of shield machine shield ventral brush sealing property tester embodiment 1 of the present invention interface in circumference
Distribution schematic diagram.
As it is shown in figure 1, this assay device includes installing rack 1, inner barrel 2 and outer cylinder body 3, wherein, inner barrel 2 and outer cylinder body
3 the most removable are arranged on installing rack 1, and inner barrel 2 coaxial sleeve is located in outer cylinder body 3, outside the inwall of outer cylinder body 3 is with inner barrel 2
For the annular gap for assembling shield ventral brush assembly to be measured between wall.
Shield ventral brush assembly to be measured includes at least one shield ventral brush 4 (being provided with three shield ventral brushes 4 in Fig. 1), the root of shield ventral brush 4
Portion 401 is welded on the inwall of outer cylinder body 3, and its top 402 is pressed together on the periphery wall of inner barrel 2, and shield ventral brush 4 is ring junction
Structure, is formed in annular gap and seals together.
This assay device also includes the upper sealing member of the upper port for sealing annular gap and for sealing annular gap
The lower seal of lower port, annular seal space is closed into lower seal in annular gap by upper sealing member.
Upper sealing member is end cap 5, and the upper end of inner barrel 2 is positioned at the upper end of outer cylinder body 3, and end cap 5 lid is located at inner barrel 2
Upper end, end cap 5 includes capping 501 and lid perisporium 502.
The lower surface of lid perisporium 502 of end cap 5 is tightly connected with the upper surface of outer cylinder body, the upper end of outer cylinder body 3 and lid week
The lower end of wall 502 the most radially extends the convex of formation flange, the flange of the upper end of outer cylinder body 3 and the lower end of lid perisporium 502
Between edge, sandwiched O is used for leakproof, and passes through flange and the lid perisporium of the upper end of the first bolt 503 compact siro spinning technology outer cylinder body 3
The flange of the lower end of 502, the periphery wall of annular seal space is collectively constituted by outer cylinder body 3 and lid perisporium 502.Upper surface at inner barrel 2
And it is also provided with O between the lower surface of capping 501 for leakproof, the upper end of inner barrel 2 is closely connected by the second bolt 504
It is connected on the lower surface of capping 501.Wherein, the first bolt 503 and the second bolt 504 are all laid multiple in circumference, so that even
Connect fastening and in circumference uniform force.
Lower seal includes seal washer 6 and compressing member, and compressing member includes the 3rd bolt 601 and the 4th bolt 602, installs
Frame 1 is provided with support seat 101, and supporting seat 101 has multiple, and the plurality of support seat 101 surrounds an annulus, the plurality of support
The upper surface of seat 101 is in same level, and seal washer 6 lies on the upper surface of the plurality of support seat 101, outer cylinder body 3
Lower surface and the lower surface of inner barrel 2 all completely attach to the upper surface of seal washer 6, seal washer 6 is arranged on outer cylinder body 3
And between the lower surface of inner barrel 2 and the upper surface supporting seat 101.Lead between outer cylinder body 3 and the lower end of inner barrel 2 and support seat
Crossing compressing member to connect, the lower end edge radial outward expansion of outer cylinder body 3 forms flange, and the 3rd bolt 601 is through this flange, sealing gasket
Enclosing 6 and support seat 101 and fasten, the lower end edge of inner barrel 2 radially-inwardly extends formation flange, and the 4th bolt 602 is convex through this
Edge, seal washer 6 and support seat 101 also fasten, and the 3rd bolt 601 and the 4th bolt 602 are all laid multiple in circumference, so that
Connecting fastening and in circumference uniform force, seal washer 6 is pressed on the support seat 101 of installing rack by outer cylinder body 3 and inner barrel 2
On.
Annular seal space is divided into the cavity that at least two is mutually isolated by shield ventral brush assembly to be measured, and the periphery wall of cavity is all opened
Be provided be in communication with the outside for the hand-hole of injection testing medium in corresponding cavity.In embodiment 1, shield ventral brush to be measured
Assembly includes three shield ventral brushes 4, and the cavity that annular seal space is separated out by three shield ventral brushes 4 is four, including a muddy water topmost
Three oils and fats cavitys below cavity and muddy water cavity, the periphery wall of each cavity all offers be in communication with the outside for
The hand-hole of injection testing medium in corresponding cavity, the periphery wall of annular seal space includes the lid perisporium of outer cylinder body 3 and end cap
502, the annular seal space part corresponding to outer cylinder body 3 is divided into three oils and fats cavitys, the i.e. periphery wall of three oils and fats cavitys by shield ventral brush 4
Being the barrel of outer cylinder body 3, the annular seal space part corresponding to lid perisporium 502 is divided into muddy water cavity, i.e. muddy water cavity by shield ventral brush 4
Periphery wall be lid perisporium 502.Test medium specifically includes the muddy water injected in muddy water cavity and notes in oils and fats cavity
The oils and fats entered, hand-hole specifically includes the oils and fats hand-hole 7 and the periphery wall of muddy water cavity offered on the periphery wall of oils and fats cavity
On the muddy water hand-hole 8 offered, wherein, the periphery wall of each oils and fats cavity is the most uniformly laid three oils and fats hand-holes,
Two muddy water hand-holes are relatively offered on the perisporium of muddy water cavity.
The periphery wall of three oils and fats cavitys is all outer cylinder body 3, i.e. offers three groups of oils and fats hand-holes on the barrel of outer cylinder body 3
7, often group is at circumferentially disposed three, and often group correspondence connects same oils and fats cavity.The periphery wall of muddy water cavity is lid perisporium 502,
I.e. two muddy water hand-holes 8 are opened on lid perisporium 502, and are oppositely arranged.
Muddy water cavity is preferably injected muddy water but it also may inject other liquid, such as, water or waterglass etc..Oils and fats chamber
Being used for injecting oils and fats in body, and the oils and fats injected is special shield tail grease, this oils and fats has not hydrophilic, can effectively intercept
Slurry infiltration in muddy water cavity is crossed in the cavity that oils and fats cavity enters tail shield.
The oils and fats produced by injecting different manufacturers in oils and fats cavity is tested, and compares the oils and fats that different manufacturers produces
Impact on shield ventral brush sealing property.
It is further opened with at least one installation on the periphery wall of the cavity that shield ventral brush assembly to be measured is separated out in annular gap to connect
Mouthful, mounting interface connects and has manual ball valve, Pressure gauge and/or pressure transducer.These mounting interfaces include three oils and fats chambeies
One group of second mounting interface offered on three group of first mounting interface offered on the periphery wall of body and the periphery wall of muddy water cavity.
Fig. 2 be on the outer cylinder body of shield machine shield ventral brush sealing property tester embodiment 1 of the present invention interface circumference
Distribution schematic diagram.Three groups of interfaces being distributed as shown in Figure 2, often oils and fats cavity, often group of group correspondence connection is included on outer cylinder body 3
Except include three uniform in addition to injecting the oils and fats hand-hole 7 of oils and fats in corresponding oils and fats cavity, also include the first peace
Attaching mouth, the first mounting interface often organized includes three for connecting 9, two, the first ball valve interface of manual ball valve for connecting
Pressure gauge and/or the first pressure detecting interface 10 of pressure transducer and two the first spare interface 11.
During test, due to oils and fats relatively thickness, it is difficult to be full of oils and fats cavity, the manual of the first ball valve interface 9 connection can be opened
Ball valve, observes in corresponding oil pocket whether being full of oils and fats, if opening manual ball valve do not observe oils and fats, then can use iron wire
Whether Deng detection, opening has muddy water in manual ball valve also Observable corresponding oils and fats cavity, does not has muddy water then to illustrate to fill oils and fats
The good seal performance of rear sealing brush.The Pressure gauge that first pressure detecting interface 10 connects is for directly observing corresponding oils and fats cavity
The pressure of middle oils and fats, the pressure transducer that the first pressure detecting interface 10 connects is for detecting oils and fats in corresponding oils and fats cavity
Pressure, and the data recorded be sent to PLC carry out record.If the pressure that Pressure gauge shows carries out manual record, the most not
Need to reconnect pressure transducer, now, with plug, a remaining first pressure detecting interface 10 is blocked.Arrange
One spare interface 11 is in order to prevent the blocking of other first mounting interfaces and can not to use.
Fig. 3 be on the lid perisporium of shield machine shield ventral brush sealing property tester embodiment 1 of the present invention interface circumference
Distribution schematic diagram.Interface on lid perisporium 502, in addition to including two muddy water hand-holes 8, also includes one group of second mounting interface,
Wherein, the second mounting interface includes that 12, two, two the second ball valve interfaces are for connecting the of Pressure gauge and/or pressure transducer
Two pressure interfaces 13 and two the second spare interface 14.
Second ball valve interface 12 is used for connecting manual ball valve, and the manual ball valve opening the second ball valve interface 12 connection can be examined
Whether the muddy water surveyed in muddy water cavity contains oils and fats, if muddy water cavity exists oils and fats, then when showing to inject this kind of oils and fats, and shield tail
The sealing property of brush is bad, does not has oils and fats then to show the favorable sealing property of shield ventral brush.Can be connected by the second pressure interface 13
Pressure gauge directly observe the pressure of muddy water in muddy water cavity, by pressure transducer, the pressure data of detection is delivered to
PLC carries out record, if the pressure that Pressure gauge shows has carried out manual record, avoids the need for reconnecting pressure transducer, this
Time, with plug, a remaining second pressure detecting interface 13 is blocked.Arranging the second spare interface 14 is to prevent
Other first mounting interfaces block and can not use.
The overflow valve interface 15 for connecting overflow valve it is further opened with, namely at end cap on the periphery wall of muddy water cavity
Offer overflow valve interface 15 on lid perisporium 502, be used for connecting overflow valve, prevent excessive generation of the pressure in muddy water cavity from endangering
Danger.
Embodiment 2
Refer to the structural representation that Fig. 4, Fig. 4 are shield machine shield ventral brush sealing property tester embodiments 2 of the present invention.
As shown in Figure 4, installing rack 1 is provided through inner barrel 2 inner chamber for by end cap 5 jack-up or the hydraulic jack that pulls down
16, the back seat releasable connection of the cylinder barrel of hydraulic jack 16 on installing rack 1, the top releasable connection of the piston rod of hydraulic jack 16
On the capping 501 of end cap 5.Hydraulic jack 16 is three, is vertically distributed in the inner chamber of inner barrel 2.
During test, shield ventral brush is welded on outer cylinder body, after outer cylinder body is connected with lid perisporium, then outer cylinder body is set in inner core
The upper end of body, owing to the height of shield ventral brush is more than annular gap width between outer cylinder body and inner barrel, by outer cylinder body set
Be located at the upper end of inner barrel downward sheathed time, can be by resistance, at this moment available hydraulic oil cylinder 16 pulls down.
Present invention also offers a kind of test method being carried out by above-mentioned assay device and testing, the method includes following step
Rapid:
Three height are H by the first step1Shield ventral brush to be measured be equidistantly welded on the inwall of outer cylinder body, use crane
End cap is sling, the lower end of the upper end of outer cylinder body with the lid perisporium of end cap is connected and fastens, the top of the piston rod of hydraulic jack
End is fixedly connected on end cap.It should be noted that before the test is conducted, the lower end of inner barrel is already fixed to installing rack
On, shield ventral brush to be measured is mainly welded on the inwall of outer cylinder body by the first step, and the urceolus of shield ventral brush to be measured will be welded with
Body is connected on end cap.
Second step, is set in the upper end of inner barrel by the lower port of outer cylinder body in lifting, by hydraulic jack by end cap,
The outer cylinder body being connected with end cap and the shield ventral brush to be measured being welded on the inwall of outer cylinder body pull down, until under outer cylinder body
End face and the upper surface of seal washer, the lower end of outer cylinder body is fastened on installing rack, by three shield tails to be measured in annular seal space
Brush is separated out four cavitys, including three oils and fats cavitys below a muddy water cavity topmost and muddy water cavity, then by inner core
The upper surface of body is fastenedly connected on end cap.Second step is mainly drop-down by be connected on end cap and welding by hydraulic jack
The outer cylinder body having shield ventral brush to be measured to overlap is set on inner barrel.
3rd step, three oils and fats cavitys are connected to measure in corresponding oils and fats cavity by corresponding mounting interface respectively
The Pressure gauge of pressure of grease size and whether have the manual ball valve of oils and fats and muddy water in the oils and fats cavity observing correspondence；Muddy water
Cavity is connected to measure the Pressure gauge of mud hydraulic pressure size in muddy water cavity and for observing mud by corresponding mounting interface
Whether water chamber has the manual ball valve of oils and fats, and on overflow valve interface, connects overflow valve.
4th step, respectively by the oils and fats hand-hole connection oil pump corresponding with three oils and fats cavitys, and to corresponding oil
Injecting oils and fats in fat cavity, the pressure of the oils and fats injected in three oils and fats cavitys reaches 0.2 MPa and i.e. stops pumping；Pass through muddy water
Hand-hole injects muddy water in muddy water cavity, when in muddy water cavity, the pressure of muddy water stops injecting when reaching 0.2 MPa.Three oil
The muddy water pressurize injected in the oils and fats injected in fat cavity and muddy water cavity 12 hours.The performance of the oils and fats that different manufacturers produces
Difference, the oils and fats of the selected manufacturer production of test is tested every time.
5th step, will open with the manual ball valve corresponding to three oils and fats cavitys successively, in the oils and fats cavity that detection is corresponding
Whether it is full of oils and fats and whether exists by the muddy water being permeated in muddy water cavity, if oils and fats cavity has muddy water, then saying
Bright muddy water had oozed in shield ventral brush, and oils and fats cavity the most on the lower muddy water, illustrates that the sealing property of shield ventral brush is the most bad.Open
Whether the manual ball valve detection muddy water cavity corresponding with muddy water cavity exists by the oils and fats being permeated in oils and fats cavity, muddy water
Muddy water in cavity may ooze shield ventral brush, and the oils and fats in oils and fats cavity is likely to ooze shield ventral brush, need to detect shield ventral brush
Two way seal performance.
6th step, dismantles outer cylinder body, measures and record shield ventral brush residual altitude H after experiment2, refer to Fig. 5, Fig. 5
It it is the structural representation of an embodiment shield ventral brush in shield machine shield ventral brush experiments of sealing performance method of the present invention.Shield ventral brush in Fig. 5
Height H be denoted as H before the test1, after test, it is denoted as H2, calculate and record the deformation quantity L of shield ventral brush, wherein L=H1-H2.As
Really deformation quantity L is the biggest, then the poor toughness of shield ventral brush is described, i.e. the life-span can be short.
Referring to Fig. 6, Fig. 6 is that shield machine shield ventral brush another embodiment of experiments of sealing performance method of the present invention changes shield to be measured
The flow chart of ventral brush.In another embodiment of this shield machine shield ventral brush experiments of sealing performance method, the method is changed and treats
Survey shield ventral brush step particularly as follows:
(a) dismounting outer cylinder body, the pressure that the oil pump three oils and fats cavity correspondences connected, three oils and fats cavity correspondences are installed
Table is torn open with the overflow valve connected on manual ball valve, the Pressure gauge of the corresponding installation of muddy water cavity and manual ball valve and overflow valve interface
Except the place being placed into regulation；By the connection between lower end and the upper end of outer cylinder body of lid perisporium and inner barrel lower end and installation
Connection between frame is removed in the lump, and the piston rod of hydraulic jack stretches out end cap together with inner barrel jack-up, uses lifting simultaneously
Machine is sling end cap and inner barrel, takes the connection between the piston rod top of hydraulic jack and capping lower surface apart, and end cap is together with interior
Cylinder is removed from installing rack in the lump；The lower end of outer cylinder body is removed from installing rack, with crane by outer cylinder body together with outer cylinder body
On the shield ventral brush 403 surveyed sling together and remove from installing rack.
B inner barrel is arranged on installing rack by (), the lower end of inner barrel is fixed on installing rack, and dismantles end cap；
C shield ventral brush 404 to be measured when testing again is welded on the inwall of inner barrel by (), the upper end of outer cylinder body is fixed
Being connected to the lower end of lid perisporium, the upper port of outer cylinder body is set in the upper end of inner barrel, by hydraulic jack by end cap, outer cylinder body
Drop-down together with shield ventral brush 404 to be measured, then the lower end of outer cylinder body is fixed on installing rack, simultaneously by inner barrel and end cap
It is sealedly and fixedly connected between capping.
It should be noted that only give three state diagrams during replacing shield ventral brush to be measured in Fig. 6, Fig. 6 is not
Show that the Renewal process that shield ventral brush to be measured is complete, actual Renewal process are as the criterion with the description of word segment.
Based on above example, the shield machine shield ventral brush sealing property tester that the present invention provides includes installing rack, interior
Cylinder and outer cylinder body, inner barrel and outer cylinder body are the most removable to be arranged on installing rack, and inner barrel coaxial sleeve is located in outer cylinder body, urceolus
For the annular gap for assembling shield ventral brush assembly to be measured between inwall and the outer wall of inner barrel of body；Also include for sealing ring
The upper sealing member of the upper port in shape gap and for sealing the lower seal of the lower port of annular gap；Shield ventral brush assembly to be measured will
Annular gap is divided into the cavity that at least two is mutually isolated, cavity all offer in cavity wall be in communication with the outside for phase
The hand-hole of injection testing medium in the cavity answered.By being located in annular gap by shield ventral brush assembly to be measured, isolate use
In injecting the oils and fats cavity of oils and fats and for injecting the muddy water cavity of muddy water, the working condition of simulation shield machine shield ventral brush, permissible
Test the impact on shield ventral brush sealing property of different types of oils and fats, measure shield ventral brush deformation quantity in annular gap, permissible
Test different size, the impact on sealing property of the different types of shield ventral brush.Shield ventral brush is tested the market demand recorded
In the research and development of new equipment and feeding back to the working environment of shield ventral brush, the design of shield ventral brush can be optimized, strengthen shield ventral brush in work
Reliability in work and ruggedness, rationally reduce the cost of equipment.
The foregoing is only embodiments of the invention, not thereby limit the scope of the claims of the present invention, every utilize this
The equivalent structure transformation that bright description and accompanying drawing content are made, or directly or indirectly it is used in other relevant technical fields, all
It is included in the scope of patent protection of the present invention.
Claims (10)
1. a shield machine shield ventral brush sealing property tester, it is characterised in that including:
Installing rack, inner barrel and outer cylinder body, described inner barrel and outer cylinder body are the most removable to be arranged on described installing rack, described inner core
Body coaxial sleeve is located in described outer cylinder body, to be measured for being used for assembling between inwall and the outer wall of described inner barrel of described outer cylinder body
The annular gap of shield ventral brush assembly；
For sealing the upper sealing member of the upper port of described annular gap and under the lower port sealing described annular gap
Sealing member, annular seal space is closed into lower seal in described annular gap by described upper sealing member；
Described annular seal space is divided into the cavity that at least two is mutually isolated, the periphery of described cavity by described shield ventral brush assembly to be measured
All offer on wall be in communication with the outside for the hand-hole of injection testing medium in corresponding cavity.
Shield machine shield ventral brush sealing property tester the most according to claim 1, it is characterised in that described shield tail to be measured
Being further opened with at least one mounting interface on the periphery wall of the cavity that brush assemblies is separated out in described annular gap, described installation connects
On mouth, connection has manual ball valve, Pressure gauge and/or pressure transducer.
Shield machine shield ventral brush sealing property tester the most according to claim 2, it is characterised in that described upper sealing member
For end cap, the upper end of described inner barrel is positioned at the upper end of described outer cylinder body, and described end cap lid is located at the upper of described inner barrel
End, the lower surface of the lid perisporium of described end cap is tightly connected with the upper surface of described outer cylinder body, the periphery wall of described annular seal space by
The lid perisporium composition of described outer cylinder body and described end cap.
Shield machine shield ventral brush sealing property tester the most according to claim 3, it is characterised in that described lower seal
Including seal washer and compressing member, described installing rack is provided with support seat, and described seal washer is arranged on described outer cylinder body and institute
State between the lower surface of inner barrel and the upper surface of described support seat, the lower end of described outer cylinder body and inner barrel and described support seat
Between connected by described compressing member.
Shield machine shield ventral brush sealing property tester the most according to claim 4, it is characterised in that described shield tail to be measured
Brush assemblies includes three shield ventral brushes, and the cavity that described annular seal space is separated out by described three shield ventral brushes is four, including the top
Three oils and fats cavitys below one muddy water cavity and described muddy water cavity；
Described hand-hole includes oils and fats hand-hole and the periphery of described muddy water cavity offered on the periphery wall of described oils and fats cavity
The muddy water hand-hole offered on wall, wherein, the periphery wall of each described oils and fats cavity is the most uniformly laid three described oil
Fat hand-hole.
Shield machine shield ventral brush sealing property tester the most according to claim 5, it is characterised in that described muddy water cavity
Periphery wall on be further opened with the overflow valve interface for connecting overflow valve.
Shield machine shield ventral brush sealing property tester the most according to claim 6, it is characterised in that on described installing rack
Be provided through described inner barrel inner chamber for by described end cap jack-up or the hydraulic jack that pulls down, described hydraulic jack
The back seat releasable connection of cylinder barrel on described installing rack, the top releasable connection of the piston rod of described hydraulic jack is at described end
Cover.
Shield machine shield ventral brush sealing property tester the most according to claim 7, it is characterised in that described hydraulic jack
It is three, is vertically distributed in the inner chamber of described inner barrel.
9. a shield machine shield ventral brush experiments of sealing performance method, is sealed by the shield machine shield ventral brush described in claim 7 or 8
Performance test apparatus is tested, it is characterised in that described test method includes:
Three height are H by the first step1Shield ventral brush to be measured be equidistantly welded on the inwall of described outer cylinder body, with crane will
Described end cap is sling, and the lower end of the upper end of described outer cylinder body with the lid perisporium of described end cap is connected and is fastened, described hydraulic oil
The top of the piston rod of cylinder is fixedly connected on described end cap；
Second step, is set in the upper end of described inner barrel, by described hydraulic oil by the lower port of the described outer cylinder body in lifting
Outer cylinder body that described end cap is connected by cylinder with described end cap and the shield ventral brush to be measured being welded on the inwall of described outer cylinder body
Pull down, until the lower surface of described outer cylinder body and the upper surface of described seal washer, the lower end fastening of described outer cylinder body
On described installing rack, described annular seal space is separated out four cavitys by described three shield ventral brushes to be measured, including topmost
Three oils and fats cavitys below muddy water cavity and described muddy water cavity, then the upper surface of described inner barrel is fastenedly connected described
On end cap；
3rd step, three described oils and fats cavitys are connected to measure in corresponding oils and fats cavity by corresponding mounting interface respectively
The Pressure gauge of pressure of grease size and whether have the manual ball valve of oils and fats and muddy water in the oils and fats cavity observing correspondence,
Described muddy water cavity is connected to measure the pressure of mud hydraulic pressure size in described muddy water cavity by corresponding mounting interface
Power table and for observing the manual ball valve whether having oils and fats in described muddy water cavity, and on described overflow valve interface, connect overflow
Valve；
4th step, respectively by the oils and fats hand-hole connection oil pump corresponding with three described oils and fats cavitys, and to corresponding oil
Injecting oils and fats in fat cavity, the pressure of the oils and fats injected in three described oils and fats cavitys reaches 0.2 MPa and i.e. stops pumping,
In described muddy water cavity, muddy water is injected, when in described muddy water cavity, the pressure of muddy water reaches by described muddy water hand-hole
Stop when 0.2 MPa injecting,
Muddy water in described muddy water cavity and the oils and fats pressurize in three described oils and fats cavitys 12 hours；
5th step, will open with the manual ball valve corresponding to three described oils and fats cavitys successively, in the oils and fats cavity that detection is corresponding
Whether it is full of oils and fats and whether exists by the muddy water being permeated in described muddy water cavity；Open corresponding with described muddy water cavity
Manual ball valve detect in described muddy water cavity and whether exist by the oils and fats being permeated in oils and fats cavity；
6th step, dismantles described outer cylinder body, measures and record described shield ventral brush residual altitude H after experiment2, calculate and record
The deformation quantity L of described shield ventral brush, wherein L=H1-H2。
Shield machine shield ventral brush experiments of sealing performance method the most according to claim 9, it is characterised in that described 6th step
The step of the described outer cylinder body of middle dismounting particularly as follows:
The oil pump that three described oils and fats cavity correspondences are connected and the Pressure gauge of corresponding installation, manual ball valve, described muddy water cavity
Pressure gauge, manual ball valve and the overflow valve installed are removed；
By the connection between lower end and the upper end of described outer cylinder body of described lid perisporium, and the lower end of described inner barrel is with described
Connection between installing rack is removed in the lump, and the piston rod of described hydraulic jack stretches out described end cap together with described inner barrel
Jack-up, takes the connection between the piston rod top of described hydraulic jack and described end cap apart, with crane sling described end cap and
Inner barrel, described end cap is removed from described installing rack in the lump together with described inner barrel；
Connection between lower end and the described installing rack of described outer cylinder body is removed, with crane by described outer cylinder body together with described
Shield ventral brush on outer cylinder body is sling together and is removed from described installing rack.
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| CN201610854077.4A CN106226003B (en) | 2016-09-27 | 2016-09-27 | Shield machine shield ventral brush experiments of sealing performance method |
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| CN201610854077.4A CN106226003B (en) | 2016-09-27 | 2016-09-27 | Shield machine shield ventral brush experiments of sealing performance method |
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| CN107152529A (en) * | 2017-06-14 | 2017-09-12 | 中铁工程装备集团有限公司 | The grease lubrication sealing system and injection monitoring method of push-bench drive system |
| CN107449569A (en) * | 2017-09-29 | 2017-12-08 | 中铁隧道局集团有限公司 | A kind of shield tail brush sealing property testing equipment and its method of testing |
| CN107478570A (en) * | 2017-07-25 | 2017-12-15 | 泰州格睿特新材料科技有限公司 | A kind of shield tail grease pressure resistant testing device |
| CN108593220A (en) * | 2018-05-28 | 2018-09-28 | 广州轨道交通建设监理有限公司 | A kind of experimental provision and method for shield ventral brush leak test |
| CN108680350A (en) * | 2018-06-29 | 2018-10-19 | 中铁工程装备集团有限公司 | A kind of multi-functional hinged seal test table |
| CN109839496A (en) * | 2019-04-01 | 2019-06-04 | 粤水电轨道交通建设有限公司 | A kind of tail seal grease of shield height emulation detection device and detection method |
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| CN111811799A (en) * | 2020-06-30 | 2020-10-23 | 上海隧道工程有限公司 | Grease metering device for shield tail brush and grease metering method thereof |
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| CN107449569B (en) * | 2017-09-29 | 2023-08-29 | 中铁隧道局集团有限公司 | Shield tail brush sealing performance testing device and testing method thereof |
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| CN109839496A (en) * | 2019-04-01 | 2019-06-04 | 粤水电轨道交通建设有限公司 | A kind of tail seal grease of shield height emulation detection device and detection method |
| CN109839496B (en) * | 2019-04-01 | 2024-05-07 | 粤水电轨道交通建设有限公司 | Shield tail sealing grease high-simulation detection equipment and detection method |
| CN110243546A (en) * | 2019-07-18 | 2019-09-17 | 中国铁建重工集团股份有限公司 | Articulated sealing test bed of heading machine |
| CN110243546B (en) * | 2019-07-18 | 2024-04-23 | 中国铁建重工集团股份有限公司 | Articulated sealing test bed of heading machine |
| CN111811854B (en) * | 2020-06-30 | 2022-08-26 | 上海隧道工程有限公司 | Sealing assembly of shield tail brush performance test box |
| CN111811799B (en) * | 2020-06-30 | 2023-04-14 | 上海隧道工程有限公司 | Grease metering device for shield tail brush and grease metering method thereof |
| CN111811854A (en) * | 2020-06-30 | 2020-10-23 | 上海隧道工程有限公司 | Sealing assembly of shield tail brush performance test box |
| CN111811799A (en) * | 2020-06-30 | 2020-10-23 | 上海隧道工程有限公司 | Grease metering device for shield tail brush and grease metering method thereof |
| CN113049194A (en) * | 2021-04-08 | 2021-06-29 | 中铁隧道局集团有限公司 | Ultra-long distance and ultra-high water pressure shield tail sealing and hinge sealing performance test bed |
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