CN206038236U - Shield constructs owner bearing seal sealing performance test device of system - Google Patents
Shield constructs owner bearing seal sealing performance test device of system Download PDFInfo
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- CN206038236U CN206038236U CN201621060298.6U CN201621060298U CN206038236U CN 206038236 U CN206038236 U CN 206038236U CN 201621060298 U CN201621060298 U CN 201621060298U CN 206038236 U CN206038236 U CN 206038236U
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- outer tube
- inner core
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Abstract
The utility model discloses a shield constructs owner bearing seal sealing performance test device of system. This test device is including fixing first urceolus, second urceolus and the drive arrangement on the mount, and first urceolus is inside to be established first inner tube and form first clearance with the axle sleeve, and the second urceolus is inside to be established the second inner tube and form the second clearance with the axle sleeve, sets up first await measuring main drive seal assembly and the second main drive seal assembly that awaits measuring in first clearance and the second clearance respectively. Set up the pressure chamber between first clearance and the second clearance, and the left end of first inner tube is connected with drive arrangement and by this drive arrangement drive rotation, through to filling muddy water in the pressure chamber, simulate the operating mode of the sealing system of base bearing, inspects main drive seal assembly's sealing performance to in using the research and development of new equipment with the experimental data that record, taking the optimalizing sealed scheme of performance in new equipment, reduction equipment construction risk reduces cost of maintenance, makes tunnel construction more stabilize safety.
Description
Technical field
The utility model is related to the technical field of sealing technology of the main bearing lubrication system of shield machine, TBM etc., more particularly to a kind of
Main shaft seals of shield machine system sealing performance test apparatus.
Background technology
The rock tunnel(ling) machines such as shield machine, TBM are the main construction machineries in the driving shield-tunneling construction of underground, and it is preventing soft base
While excavation face avalanche or stable holding excavation face, excavation and the lining cutting operation of tunnel can be safely carried out in machine, at present
It is widely used in the large tunnel engineering projects such as city underground, mistake river vcehicular tunnel, tunnel over strait in China.Shield
Structure main bearing is the core component of shield machine, plays a part of to support shield cutter and be allowed to turn round broken rock.In work progress
In, the Water And Earth Pressures that rock tunnel(ling) machine bears are very high, if the leakage of main bearing lubrication oil or muddy water, grit and dregs enter master
Bearing lubrication system, will cause the rapid destruction of base bearing and gear pair.The base bearing of destruction need to excavate perpendicular from above shield machine
Well hangs out replacing, and difficulty is very big, will bring immeasurable loss to shield-tunneling construction.
Lubricating system is isolated from the outside by main driving black box, prevents muddy water, grit and dregs from entering base bearing
Lubricating system, main driving black box are arranged in the gap between shaped seals support and seal cartridge, main driving sealing group
Relatively rotate between the lip sealing ring and seal cartridge of part, typically in the main Seal Oil for driving black box to be separated out in gap
Lubricating oil is injected in chamber to reduce friction.The lubricating oil injected in the species of the lubricating oil injected in seal oil chamber, seal oil chamber
Pressure, the factor such as the rotating speed of base bearing and the pressure of extraneous muddy water suffered by lip sealing ring can affect main to drive sealing
The sealing property of component.
As the quantity of the rock tunnel(ling) machines such as domestic market shield machine and TBM is on the increase, for bearing in constructing tunnel
The risk that high pressure brings, in order to more steady safer during constructing tunnel, reduces equipment construction risk and maintenance cost, shield machine
Main shaft seals system just need to be used on equipment newly developed after simulation operation success of the test on correlation test platform.Mesh
Before, also there is no a kind of device that can be tested to the main sealing property for driving black box.
For these reasons, it is necessary to which a kind of main shaft seals of shield machine system sealing performance test apparatus are provided.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of main shaft seals of shield machine system sealing performance test
Device, the experimental rig can simulate the working condition of main shaft seals of shield machine system, and the sealing to main bearing of shield machine
System sealing performance is tested.
For solving above-mentioned technical problem, the utility model main shaft seals of shield machine system sealing performance test apparatus are adopted
A technical scheme be：A kind of main shaft seals of shield machine system sealing performance test apparatus are provided, the experimental rig includes：
Fixed mount and the first outer tube on the fixed mount；First inner core of first outer barrel is set in coaxially, this first
Formed between the inwall of the outer wall of inner core and first outer tube for arranging the first main the first gap for driving black box to be measured,
The lubricating oil fill orifice of radial direction is offered on the barrel of first outer tube；Driving means on the fixed mount, this first
The left end of inner core is connected with the driving means and is rotated by the driving means, and then is rotated relative to first outer tube；
The second outer tube on the fixed mount, and the second inner core of second outer barrel is coaxially set in, second inner core
Periphery wall and the internal perisporium of second outer tube between formed for arrange second it is to be measured it is main drive black box the second gap,
The lubricating oil fill orifice of radial direction is offered on the barrel of second outer tube；Second inner core is identical with the external diameter of first inner core,
The left end of second inner core is fixedly connected with the right-hand member co-axial seal of first inner core；Second outer tube is interior with first outer tube
Footpath is identical, and the right-hand member of first outer tube is sealedly connected with the first pressure ring, and the left end of second outer tube is sealedly connected with the second pressure ring,
First pressure ring is sealed connected together by connecting cylinder with second pressure ring, offers the muddy water perfusion of radial direction on the connecting cylinder
Hole.
In another embodiment of the utility model main shaft seals of shield machine system sealing performance test apparatus, the drive
Dynamic device includes hydraulic motor and base bearing on the fixed mount, and the outer ring of the base bearing is fixed on the fixed mount,
The inner ring of the base bearing is provided with internal tooth, and the shaft end of the hydraulic motor connects the driving gear engaged with the base bearing, and this first
The left end of inner core is fixedly connected on the inner ring of the base bearing.
In another embodiment of the utility model main shaft seals of shield machine system sealing performance test apparatus, at this
On the barrel of the first outer tube, axially spaced-apart opens up four groups of lubricating oil fill orifices, irrigates in circumferentially disposed at least one lubricating oil per group
Hole；On the barrel of second outer tube, axially spaced-apart opens up three groups of lubricating oil fill orifices, per group in circumferentially disposed at least one profit
Lubricating oil fill orifice.
In another embodiment of the utility model main shaft seals of shield machine system sealing performance test apparatus, at this
Open up on the barrel of the first inner core and the second inner core hole is detected for temperature sensor mounted lubricating oil temperature.
In another embodiment of the utility model main shaft seals of shield machine system sealing performance test apparatus, this is solid
Determine on frame, to be provided with the tachogenerator for measuring the rotating speed of the base bearing.
In another embodiment of the utility model main shaft seals of shield machine system sealing performance test apparatus, the company
Connect and open up on the barrel of cylinder for the safe valve opening of connection safety valve and for connecting pressure sensor or the inspection of manometric pressure
Gaging hole.
In another embodiment of the utility model main shaft seals of shield machine system sealing performance test apparatus, the liquid
Pressure motor is three Double-discharge hydraulic motors, and the Double-discharge hydraulic motor one driving gear of each connection, three driving gears are equal
Engage with the base bearing；Observation side plate is set in the right-hand member of second outer tube, peep hole is set on the observation side plate.
By such scheme, the beneficial effects of the utility model are：The utility model main shaft seals of shield machine system is close
Sealing property experimental rig includes：Fixed mount and the first outer tube on the fixed mount；Coaxially it is set in first outer tube
Formed between the inwall of first inner core in portion, the outer wall of first inner core and first outer tube for arranging the first main driving to be measured
First gap of black box, offers the lubricating oil fill orifice of radial direction on the barrel of first outer tube；Installed in the fixed mount
On driving means, the left end of first inner core is connected with the driving means and is rotated by the driving means, Jin Erxiang
For first outer tube is rotated；Second inner core, second inner core are identical with the external diameter of first inner core, the left end of second inner core
It is fixedly connected with the right-hand member co-axial seal of first inner core；Second outer tube, second outer tube are coaxially set in second inner core
Formed between the outer wall of outside, the inwall of second outer tube and second inner core for arranging the second main driving black box to be measured
The second gap, offer the lubricating oil fill orifice of radial direction on the barrel of second outer tube；Second outer tube and first outer tube
Internal diameter it is identical, the left end of second outer tube is sealedly connected with the second pressure ring, and the right-hand member of first outer tube is sealedly connected with first
Pressure ring, first pressure ring are sealed connected together by connecting cylinder with second pressure ring, offer the mud of radial direction on the connecting cylinder
Water fill orifice, and second outer tube is fixed on the fixed mount.
By irrigating muddy water in pressure chamber, the operating mode of the sealing system that analog main shaft holds, between the first gap and second
The first main driving black box to be measured and the second main driving black box to be measured is respectively provided with gap, and two kinds of main drivings to be measured seal
The type of the lip sealing ring in component is different, injects different types of lubricating oil, and change in seal oil chamber in seal oil chamber
The pressure of lubricating oil, is tested to two kinds of lip sealing ring under the conditions of different tests simultaneously.Led to by hydraulic motor
Crossing gear ring drives the first inner core and the second inner core to rotate, and simulates the rotation of cutterhead under real working condition, observes lip sealing ring
Pressure bearing capacity and abrasion condition.
In a word, by changing experimental condition carrying out different tests, by a series of Sensor monitoring base bearing
Operating and the main sealing situation for driving black box, can intuitively find out whether experimental rig leaks muddy water from peep hole.Will test
The data feedback for obtaining takes the encapsulation scheme of best performance, while instead on the equipment of new research and development in the research and development of new equipment
It is fed on the equipment run under real working condition, reduces equipment construction risk, reduces maintenance cost, make the more stable peace of constructing tunnel
Entirely.
Description of the drawings
Fig. 1 is the sectional view of the utility model main shaft seals of shield machine system sealing performance test apparatus embodiment 1；
Fig. 2 is annexation between the first outer tube, the first inner core, the second outer tube and the second inner core in part A in Fig. 1
Enlarged drawing；
Fig. 3 is the left view of the utility model main shaft seals of shield machine system sealing performance test apparatus embodiment 2.
Specific embodiment
For the ease of understanding the utility model, below in conjunction with the accompanying drawings and specific embodiment, the utility model is carried out more detailed
Thin explanation.Preferred embodiment of the present utility model is given in accompanying drawing.But, the utility model can be with many different
Form is realizing, however it is not limited to the embodiment described by this specification.On the contrary, the purpose for providing these embodiments is made to this
The understanding of the disclosure of utility model is 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 those skilled in the art of the present utility model are generally understood that is identical.Of the present utility model used in the description
Term be intended merely to describe specific embodiment purpose, be not intended to limit the utility model.What this specification was used
Term "and/or" includes the arbitrary and all of combination of one or more related Listed Items.
Below in conjunction with the accompanying drawings, each embodiment of the present utility model is described in detail.
Embodiment 1
It is the utility model main shaft seals of shield machine system sealing performance test dress to see also Fig. 1 and Fig. 2, Fig. 1
Put the sectional view of embodiment 1, Fig. 2 is in Fig. 1 in part A between the first outer tube, the first inner core, the second outer tube and the second inner core
The enlarged drawing of annexation.
The utility model experimental rig includes：Fixed mount 5 and the first outer tube 2 on fixed mount 5, are coaxially set in
Formed between the inwall of the first inner core 1 inside the first outer tube 2, the outer wall of the first inner core 1 and the first outer tube 2 for arranging first
Main the first gap 3 for driving black box to be measured, offers the lubricating oil fill orifice 4 of radial direction on the barrel of the first outer tube 2, and first
Main driving black box to be measured includes at least one first lip sealing rings 901, and the first lip sealing ring 901 is in the first gap 3
In be separated out seal oil chamber 401, seal oil chamber injects lubricating oil, the both sides of the first lip sealing ring 901 by lubricating oil fill orifice 4
Pressure ring 902 is set, and pressure ring 902 is fixedly installed on the inwall of the first outer tube 2, and by O-shaped and the inwall of the first outer tube 2 between
Circle sealing.
The experimental rig also includes the driving means on fixed mount 5, left end and the driving means phase of the first inner core 1
Connection is simultaneously rotated by driving means, and then rotate relative to the first outer tube 2, when shield machine is tunneled, is driven by base bearing
Cutterhead constantly excavates face, and this experimental rig drives base bearing to rotate simulation real working condition by driving means.
Also include the second inner core 11 and the second outer tube 12, the second inner core 11 is identical with the external diameter of the first inner core 1, the second inner core
11 left end is fixedly connected with the right-hand member co-axial seal of the first inner core 1；Second outer tube 12 is coaxially set in the outer of the second inner core 11
Formed between the outer wall of portion, the inwall of the second outer tube 12 and the second inner core 11 for arranging the second main driving black box to be measured
Second gap 15, offers the lubricating oil fill orifice of radial direction on the barrel of the second outer tube 12；Second outer tube 12 and the first outer tube 11
Internal diameter it is identical, the left end of the second outer tube 12 is sealedly connected with the second pressure ring 13, and the right-hand member of the first outer tube 11 is sealedly connected with
One pressure ring 14, the first pressure ring 14 are sealed connected together by connecting cylinder 10 with the second pressure ring 13, offer footpath on connecting cylinder 10
To muddy water fill orifice, and the second outer tube 12 is fixed on fixed mount 5.The second main driving the to be measured arranged in second gap seals
Component includes the second lip sealing ring 903, and the second lip sealing ring 903 is different from 901 type of the first lip sealing ring, therefore this
Experimental rig can test the sealing property of two distinct types of lip sealing ring simultaneously.
Fixed mount 5 includes the first installing plate 501 and the second installing plate 502, the first installing plate 501 and the second installing plate 502
First inner core, the first outer tube, the second inner core, the second outer tube are clipped in the middle and are played a supporting role.
15 insertion of first gap 3 and the second gap, is respectively provided with the first master to be measured in the first gap 3 and the second gap 15
After driving black box and the second main driving black box to be measured, in the middle of the first gap 3 and the second gap 15, pressure chamber 7 is separated out,
Injection pressure muddy water, the first main driving black box and the second master are irrigated in pressure chamber 7 by the muddy water fill orifice on connecting cylinder 10
Drive black box to play a part of sealing in the first gap 3 and the second gap 15, muddy water in pressure chamber 7 is prevented by first
The right-hand member in gap 3 penetrates into left end, and prevents the muddy water in pressure chamber 7 from penetrating into right-hand member by the left end in the second gap 15.It is logical
Overtesting, tests the first main driving black box to be measured and the second main driving black box to be measured to the first gap 3 and second
The sealing property in gap 15.
Driving means include hydraulic motor 601 and base bearing 603 on the first installing plate 501, base bearing 603
Outer ring is fixed on the first installing plate 501, and the inner ring of base bearing 603 is provided with internal tooth, shaft end connection and the master of hydraulic motor 601
The driving gear 602 of the engagement of bearing 603, the left end of the first inner core 1 are fixedly connected on the inner ring of base bearing 603, the first inner core 1
Left end extend radially inward to form connection ring 101, connection ring 101 is for being fixedly connected with the inner ring of base bearing 603, and leads
Bearing 603 equivalent in shield machine for the bearing rotated with movable knife disc, the end face of the right-hand member of connection ring 101 and the first inner core 1
Inwall between floor 102 is set, for strengthening the bearing capacity of connection ring 101, drive when the inner ring of base bearing 603 is rotated
First inner core 1 is rotated.
On the barrel of the first outer tube 2, axially spaced-apart opens up four groups of lubricating oil fill orifices 4, per group circumferentially disposed at least one
Individual lubricating oil fill orifice, on the barrel of the second outer tube 12, axially spaced-apart opens up three groups of lubricating oil fill orifices 4, sets circumferential per group
Put at least one lubricating oil fill orifice.The reason for arranging multigroup lubricating oil fill orifice is that at the trial, the first main driving to be measured is close
Sealing assembly and the second main driving black box to be measured can be separated out multiple seal oil chambers 401 in the first gap and the second gap, often
Individual seal oil chamber 401 is required for irrigating lubricating oil by corresponding lubricating oil fill orifice.Preferably, every group of lubricating oil fill orifice 4
Six are respectively provided with circumferential, when needing to irrigate lubricating oil, can be irrigated with six lubricating oil fill orifices simultaneously, such Seal Oil
Lubricating oil in chamber is evenly distributed and lubricating oil pressure is uniform, plays more preferable lubricant effect to lip sealing ring.
Open up on the barrel of the first inner core 1 and the second inner core 11 and examine for temperature sensor mounted lubricating oil temperature
Gaging hole, the lubricating oil temperature detection hole are used for mounting temperature sensor 16, in process of the test, due to the first lip sealing ring 901
There is pivoting friction between the first inner core 1 and between the second lip sealing ring 903 and the second inner core 11, in seal oil chamber 401
Lubricating oil temperature can raise, test the temperature change of lubricating oil by temperature sensor 16, and then it be close to monitor the first lip
Friction condition between seal ring 901 and the first inner core 1 and between the second lip sealing ring 903 and the second inner core 11.
The tachogenerator 17 for measuring the rotating speed of base bearing 603, the rotating speed of base bearing 603 is provided with fixed mount 5
It is very big to the effect of attrition of the first lip sealing ring 901 and the second lip sealing ring 903, so needing to monitor its rotating speed.
Also open up on the barrel of connecting cylinder 10 for connection safety valve safe valve opening and for connect pressure sensor or
Manometric pressure sensing port, in pressure chamber 7, the pressure of injection pressure muddy water needs observed and recorded, is on the one hand because injection pressure muddy water
Pressure is that a kind of experimental condition needs observational record, in such as pressure chamber 7 pressure of injection pressure muddy water could be arranged to 3bar or
5bar etc. different pressure；On the other hand the pressure of real-time monitoring injection pressure muddy water is because, pressure excessive generation when preventing from testing
It is dangerous.Safety valve can then ensure the pressure of injection pressure muddy water in pressure chamber 7 in safe range.Here, the injection pressure in pressure chamber
Muddy water is injected by pressurized tank, stores muddy water with pressure in pressurized tank, and pressurized tank by pipeline communication on connecting cylinder 10
Muddy water fill orifice.
Observation side plate 18 is set in the right-hand member of the second outer tube 12, peep hole is set on the observation side plate 18, by the observation
Whether the muddy water observed in pressure chamber at hole is revealed by the left end in the first gap or the right-hand member in the second gap.During experiment, if profit
Lubricating oil fill orifice does not irrigate lubricating oil, can observe whether muddy water has leakage at lubricating oil fill orifice yet.
Embodiment 2
Fig. 3 is referred to, Fig. 3 is the utility model main shaft seals of shield machine system sealing performance test apparatus embodiment 2
Left view.
Embodiment 2 is the further improvement to embodiment 1, includes identical technical characteristic in embodiment 1, and the test is filled
Hydraulic motor 601 in the driving means put is three Double-discharge hydraulic motors, and Double-discharge hydraulic motor is each to connect an active
Gear, three driving gears are engaged with base bearing, and the diameter of base bearing is very big, are to ensure that driving means have enough power to drive
Base bearing is rotated, therefore arranges three hydraulic motors 601, and Double-discharge hydraulic motor is easy to the regulation of base bearing rotating speed.
For the above-mentioned main shaft seals of shield machine system sealing performance test apparatus of the utility model, following tools can be adopted
Body method is tested, and the method includes：
The first step, is respectively provided with the first main driving black box to be measured and second to be measured in the first gap and the second gap
Main driving black box.In the step, the first main driving black box to be measured and the second main driving black box to be measured include respectively
First lip sealing ring and the second lip sealing ring.
Second step, the lubricating oil temperature detection hole mounting temperature sensor on the first inner core and the second inner core, in connection
Safe valve opening on cylinder installs safety valve, and the pressure sensing port connection pressure sensor or pressure gauge on connecting cylinder.
3rd step, to the first main seal oil chamber for driving black box to be separated out in the first gap to be measured and the second master to be measured
Lubricating oil is injected in the seal oil chamber that driving black box is separated out in the second gap.The first lip sealing ring in the first step and
Second lip sealing ring is separated out seal oil chamber in the first gap and the second gap, and each seal oil chamber one group of lubricating oil of correspondence is filled
Orifice, injects lubricating oil in corresponding seal oil chamber by lubricating oil fill orifice, the size of the pressure of the lubricating oil of injection with
And the species of lubricating oil can be different.
4th step, fills injection pressure muddy water in pressure chamber, and the difference of the injection pressure mud hydraulic pressure filled in pressure chamber is to first
The main impact difference for driving black box and the second main driving black box sealing property to be measured to be measured, pressure are bigger, master to be measured
Drive the pressure that black box is carried also bigger.
5th step, the rotating speed of setting base bearing and the duration of runs are simultaneously tested, log；The rotating speed of base bearing
The main abrasion that drive black box and second to be measured main driving black box to be measured to first with the duration of runs has a significant impact, and turns
The speed faster time is longer, then the main abrasion for driving black box to be measured is more serious.
6th step, dismantles main driving black box and each peripheral equipment.Peripheral equipment in the step is included for for close
The oil pump of oil sealing chamber perfusion lubricating oil, the pressurized tank for filling injection pressure muddy water in pressure chamber, the first inner core and the second inner core
On the temperature sensor installed of lubricating oil temperature detection hole, the safety valve installed of the safe valve opening on connecting cylinder and connecting cylinder
On pressure sensing port connection pressure sensor or pressure gauge etc..
It is that is, first main driving to be measured under " the high speed and high pressure sealing property test of combination lip sealing ring " in test theme
Black box and the second main driving black box to be measured are made up of multiple first lip sealing rings and the second lip sealing ring respectively,
And base bearing drives the first inner core and the second inner core velocity of rotation to be set to quickly, the injection pressure mud hydraulic pressure in pressure chamber is higher,
In such a situa-tion, tested, observation first is to be measured main to drive black box and second to be measured main to drive black box
Sealing property.The test purpose of the method mainly checks main shaft seals of shield machine system under the conditions of base bearing runs up
Sealing property, check the impact that causes to sealing property of elliptical gear, the concrete steps of the method to include：
The first main driving black box to be measured that the first step is arranged in the first gap includes three spaced the
One lip sealing ring, three the first lip sealing rings are separated out two seal oil chambers in the first gap；Arrange in the second gap
Second it is to be measured it is main driving black box include three spaced second lip sealing rings, three the second lip sealing rings exist
Also two seal oil chambers are separated out in second gap；
The second step injects lubricating oil in seal oil chamber and is specially：To the first main driving black box to be measured between first
Gear oil and EP2 lubricating grease are injected separately in two seal oil chambers being separated out in gap, are existed to the second main driving black box to be measured
Also (EP2 lubricating grease is that Exxon is beautiful to be injected separately into gear oil and EP2 lubricating grease in two seal oil chambers being separated out in second gap
Inspire confidence in a kind of lubricating grease of model of lubricant corporation's production)；Gear oil is continuously supplied, when gear oil pressure reaches 1bar
Stop pumping when (1bar=100 MPa), EP2 lubricating grease continuously supplies, when EP2 grease pressures reach 2.8bar～
Stop pumping when in the range of 3.2bar；
4th step fills the injection pressure muddy water of 5bar in pressure chamber；
It is 10 revs/min that 5th step arranges the rotating speed of base bearing, and the duration of runs is 30 minutes；Log bag
Include：Whether the right-hand member of the left end and second gap of observing the first gap from peep hole leaks muddy water, and records at intervals of two minutes
The temperature change of gear oil.
It is that is, first main driving sealing group to be measured under " combination lip sealing ring low speed pressure-bearing wear testing " in test condition
Part and the second main driving black box to be measured are made up of multiple first lip sealing rings and the second lip sealing ring respectively, and main shaft
Hold the first inner core of drive and the second inner core velocity of rotation is set to low speed, but rotation time is long, injection is with certain in pressure chamber
The injection pressure muddy water of pressure, in such a situa-tion, is tested, and observes the mill of the first lip sealing ring and the second lip sealing ring
Damage amount and sealing property.The test purpose of the method mainly checks main shaft seals of shield machine system when base bearing is longer
Between sealing property under operating condition, be that the fatigability to sealing property is checked, the method concrete steps include：
The first main driving black box to be measured that the first step is arranged in first gap includes three interval settings
The first lip sealing ring, three the first lip sealing rings are separated out two seal oil chambers in the first gap；In the second gap
The the second main driving black box to be measured for arranging includes three spaced second lip sealing rings, three the second lip packing
Ring is also separated out two seal oil chambers in the second gap；
The second step injects lubricating oil in seal oil chamber and is specially：To the first main driving black box to be measured between first
Gear oil and EP2 lubricating grease are injected separately in two seal oil chambers being separated out in gap, are existed to the second main driving black box to be measured
Also gear oil and EP2 lubricating grease are injected separately in two seal oil chambers being separated out in second gap；Gear oil is continuously supplied, when
Stop pumping when gear oil pressure reaches 1bar, EP2 lubricating grease is continuously supplied, when EP2 grease pressures reach 1.8bar～
Stop pumping when in the range of 2.2bar；
The injection pressure muddy water of 3bar is filled in 4th step in pressure chamber；
The rotating speed for arranging base bearing in 5th step is 5 revs/min, and the duration of runs is 240 minutes；Log bag
Include：Whether the right-hand member of the left end and the second gap of observing the first gap from peep hole leaks muddy water, and records tooth every 10 minutes
The temperature change of wheel oil.The right-hand member in the left end in the first gap and the second gap whether leak muddy water represent the first lip sealing ring and
The wear resistance of the second lip sealing ring and sealing property, the temperature change of gear oil represent the first lip sealing ring and
The size of the friction between two lip sealing rings and the first inner core and the second inner core, temperature change are more big, rub bigger.
After dismantling main driving black box in 6th step, the mill of the first lip sealing ring and the second lip sealing ring is observed
Damage amount.
Based on the main shaft seals of shield machine system sealing performance test apparatus bag that above example, the utility model are provided
Include：Fixed mount and the first outer tube on fixed mount；First inner core of the first outer barrel, the first inner core are set in coaxially
Outer wall and the inwall of the first outer tube between formed for arrange first it is to be measured it is main drive black box the first gap, outside first
The lubricating oil fill orifice of radial direction is offered on the barrel of cylinder；Driving means on fixed mount, the left end of the first inner core with
Driving means are connected and are rotated by driving means, and then rotate relative to the first outer tube；Second inner core, the second inner core with
The external diameter of the first inner core is identical, and the left end of the second inner core is fixedly connected with the right-hand member co-axial seal of the first inner core；Second outer tube, the
Two outer tube are coaxially set between the outer wall of the outside of the second inner core, the inwall of the second outer tube and the second inner core and are formed for arranging
Second main the second gap for driving black box to be measured, offers the lubricating oil fill orifice of radial direction on the barrel of the second outer tube；The
Two outer tube are identical with the internal diameter of the first outer tube, and the left end of the second outer tube is sealedly connected with the second pressure ring, and the right-hand member of the first outer tube is close
Envelope is connected with the first pressure ring, and the first pressure ring is sealed connected together by connecting cylinder with the second pressure ring, offers footpath on connecting cylinder
To muddy water fill orifice, and the second outer tube is fixed on fixed mount.
By irrigating muddy water in pressure chamber, the operating mode of the sealing system that analog main shaft holds, between the first gap and second
The first main driving black box to be measured and the second main driving black box to be measured is respectively provided with gap, and two kinds of main drivings to be measured seal
The type of the lip sealing ring in component is different, injects different types of lubricating oil, and change in seal oil chamber in seal oil chamber
The pressure of lubricating oil, is tested to two kinds of lip sealing ring under the conditions of different tests simultaneously.Led to by hydraulic motor
Crossing gear ring drives the first inner core and the second inner core to rotate, and simulates the rotation of cutterhead under real working condition, observes lip sealing ring
Pressure bearing capacity and abrasion condition.
In a word, by changing experimental condition carrying out different tests, by a series of Sensor monitoring base bearing
Operating and the main sealing situation for driving black box, can intuitively find out whether experimental rig leaks muddy water from peep hole.Will test
The data feedback for obtaining takes the encapsulation scheme of best performance, while instead on the equipment of new research and development in the research and development of new equipment
It is fed on the equipment run under real working condition, reduces equipment construction risk, reduces maintenance cost, make the more stable peace of constructing tunnel
Entirely.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure transformation made using the utility model specification and accompanying drawing content, or directly or indirectly it is used in other correlations
Technical field, is included in scope of patent protection of the present utility model.
Claims (7)
1. a kind of main shaft seals of shield machine system sealing performance test apparatus, it is characterised in that the experimental rig includes：
Fixed mount and the first outer tube on the fixed mount；
First inner core of first outer barrel is set in coaxially, in the outer wall of first inner core and first outer tube
Formed between wall for arranging the first main the first gap for driving black box to be measured, offered on the barrel of first outer tube
The lubricating oil fill orifice of radial direction；
Driving means on the fixed mount, the left end of first inner core are connected with the driving means and by institute
State driving means to be rotated, and then rotate relative to first outer tube；
The second outer tube on the fixed mount, and coaxially it is set in the second inner core of second outer barrel, institute
Formed between the internal perisporium of the periphery wall and second outer tube of stating the second inner core for arranging the second main driving sealing group to be measured
Second gap of part, offers the lubricating oil fill orifice of radial direction on the barrel of second outer tube；
Second inner core is identical with the external diameter of first inner core, the right side of the left end of second inner core and first inner core
End co-axial seal is fixedly connected；
Second outer tube is identical with the internal diameter of first outer tube, and the right-hand member of first outer tube is sealedly connected with the first pressure
Ring, the left end of second outer tube are sealedly connected with the second pressure ring, and first pressure ring passes through connecting cylinder with second pressure ring
It is sealed connected together, on the connecting cylinder, offers the muddy water fill orifice of radial direction.
2. main shaft seals of shield machine system sealing performance test apparatus according to claim 1, it is characterised in that described
Driving means include hydraulic motor and base bearing on the fixed mount, and the outer ring of the base bearing is fixed on described solid
Determine on frame, the inner ring of the base bearing is provided with internal tooth, and the shaft end of the hydraulic motor connects the master engaged with the base bearing
Moving gear, the left end of first inner core are fixedly connected on the inner ring of the base bearing.
3. main shaft seals of shield machine system sealing performance test apparatus according to claim 2, it is characterised in that in institute
State axially spaced-apart on the barrel of the first outer tube and open up four groups of lubricating oil fill orifices, each group in circumferentially disposed at least one lubricating oil
Fill orifice；On the barrel of second outer tube, axially spaced-apart opens up three groups of lubricating oil fill orifices, each group it is circumferentially disposed extremely
A few lubricating oil fill orifice.
4. main shaft seals of shield machine system sealing performance test apparatus according to claim 3, it is characterised in that in institute
State hole is detected for temperature sensor mounted lubricating oil temperature.
5. main shaft seals of shield machine system sealing performance test apparatus according to claim 4, it is characterised in that described
The tachogenerator for measuring the rotating speed of the base bearing is provided with fixed mount.
6. main shaft seals of shield machine system sealing performance test apparatus according to claim 5, it is characterised in that described
Open up on the barrel of connecting cylinder for the safe valve opening of connection safety valve and for connecting pressure sensor or manometric pressure
Detection hole.
7. main shaft seals of shield machine system sealing performance test apparatus according to claim 6, it is characterised in that described
Hydraulic motor is three Double-discharge hydraulic motors, and the Double-discharge hydraulic motor is each to connect a driving gear, three driving tooths
Wheel is engaged with the base bearing；Observation side plate is set in the right-hand member of second outer tube, observation is set on the observation side plate
Hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621060298.6U CN206038236U (en) | 2016-09-18 | 2016-09-18 | Shield constructs owner bearing seal sealing performance test device of system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621060298.6U CN206038236U (en) | 2016-09-18 | 2016-09-18 | Shield constructs owner bearing seal sealing performance test device of system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206038236U true CN206038236U (en) | 2017-03-22 |
Family
ID=58295605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621060298.6U Withdrawn - After Issue CN206038236U (en) | 2016-09-18 | 2016-09-18 | Shield constructs owner bearing seal sealing performance test device of system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206038236U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225996A (en) * | 2016-09-18 | 2016-12-14 | 中铁工程装备集团有限公司 | Main shaft seals of shield machine system sealing performance test apparatus and test method |
| CN110243546A (en) * | 2019-07-18 | 2019-09-17 | 中国铁建重工集团股份有限公司 | A kind of hinged seal test table of development machine |
-
2016
- 2016-09-18 CN CN201621060298.6U patent/CN206038236U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106225996A (en) * | 2016-09-18 | 2016-12-14 | 中铁工程装备集团有限公司 | Main shaft seals of shield machine system sealing performance test apparatus and test method |
| CN106225996B (en) * | 2016-09-18 | 2018-08-17 | 中铁工程装备集团有限公司 | Main shaft seals of shield machine system sealing performance test apparatus and test method |
| CN110243546A (en) * | 2019-07-18 | 2019-09-17 | 中国铁建重工集团股份有限公司 | A kind of hinged seal test table of development 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 |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170322 Effective date of abandoning: 20180817 |
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| AV01 | Patent right actively abandoned |