CN208902528U - A kind of pressure type shield cutter cutter abrasion detection device - Google Patents
A kind of pressure type shield cutter cutter abrasion detection device Download PDFInfo
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- CN208902528U CN208902528U CN201821578715.5U CN201821578715U CN208902528U CN 208902528 U CN208902528 U CN 208902528U CN 201821578715 U CN201821578715 U CN 201821578715U CN 208902528 U CN208902528 U CN 208902528U
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Abstract
The utility model discloses a kind of pressure type shield cutter cutter abrasion detection device, which includes airtight cavity, connecting line and process of signal transmission mechanism, and airtight cavity is fixedly mounted on the detected part of knife disc tool；The lower part of airtight cavity is correspondingly connected with by connecting line, check-valves and pipe joint and external air source, and connecting line is equipped with pressure sensor and temperature sensor；Process of signal transmission mechanism includes signal conditioner, wireless transmitter module, signal receiving module and host computer.The utility model is compact-sized, easy to install and use, directly the abrasion condition of detecting location can be judged, the oil piping system of traditional hydraulic type wear detector complexity is abandoned, it can only determine that there are cavity leakages wear-out failure occurs to a certain group of measuring point after pressure release occurs, cannot quickly determine the defect problem of specific wear point.
Description
Technical field
The utility model relates to slurry balance shield knife disc tool wear sensing equipment technical fields, and in particular to a kind of pressure
Power formula shield cutter cutter abrasion detection device.
Background technique
Slurry balance shield is widely used in tunneling as a kind of mechanized construction equipment, has speed of application
Fastly, mechanization degree is high, is particularly useful for rich water environment, earth's surface Deformation control requires stringent occasion.Slurry shield by
In knife disc tool under mud hydraulic pressure environment, it is checked relatively difficult, needs to install some knife disc tool wear detectors.
Currently, commonly used is hydraulic type wear detector, common hydraulic type wear detector is required per detection all the way
Band fluid pressure line, since the achievable measure-point amount of limitation of pipeline arrangement is limited, and in order to simplify pipeline arrangement, if usually
Main line measuring point shares an accumulator, in energy storage pressure decline, can only confirm at least one measuring point in several measuring points of the group
Reach the level of abrasion alarm, which the point position specifically worn also need further to check at, constructs in slurry shield
Middle application is very inconvenient.
Summary of the invention
The technical problem to be solved by the present invention is to provide a kind of pressure type shield cutter cutter abrasion detection device, tools
Have pipeline it is simple, without oil contamination, detection can be pinpointed to abration position the advantages of, can largely be arranged on knife disc tool.
In order to solve the above technical problems, the utility model adopts the following technical solution:
A kind of pressure type shield cutter cutter abrasion detection device is designed, including airtight cavity, connecting line and signal pass
Defeated processing mechanism, the airtight cavity are fixedly mounted on detected part；
The connecting line includes upper pipeline, lower pipeline, four-way connection and two pass joints, and the lower part of the airtight cavity is logical
Piping connector is connected with upper pipeline top；The upper interface and lower interface of the four-way connection side are separately connected upper tube
Road and lower pipeline, the upper interface and lower interface of the other side are connected separately with pressure sensor and temperature sensor；Described two
Pass joint one end connects lower pipeline, and the other end is connected with check-valves；The upper end interface of the check-valves is corresponding with external air source to be connected
It connects；
The process of signal transmission mechanism includes signal conditioner, wireless transmitter module, signal receiving module and host computer,
The pressure sensor and temperature sensor pass through shielding line respectively and are electrically connected with the signal conditioner, the signal conditioner
Electrical connection corresponding with the wireless transmitter module, the signal receiving module matches with the wireless transmitter module, for connecing
The signal that wireless transmitter module issues is received, the signal receiving module is correspondingly connected with host computer.
Preferably, the airtight cavity is the rectangular or cylindrical of inner hollow, but is not limited to both shapes, and at it
The lower part of bottom surface is equipped with the interface being connected through a screw thread with the pipe joint.It is required that its middle part is cavity, inside can be passed through height
It calms the anger body, there are screw threads and pipe joint to cooperate for opening, the gas-tight channel in addition to opening.
Preferably, gasket is equipped in the junction of the airtight cavity and pipe joint；It is sealed when necessary in order to improve
Performance also can be used sealant and further be sealed, but not limited to this etc. seal approach.
Preferably, two pass joint is two-way angle coupling.The junction of the airtight cavity and pipe joint also
Equipped with sealant.
Preferably, the material of detected part of material and knife disc tool of the airtight cavity is identical.
Preferably, the airtight cavity Q345 steel, is weldingly fixed near cutterhead front panel, rear panel or cutter.
Preferably, the upper pipeline and lower pipeline are pressure line.
Preferably, the both ends of the upper pipeline and lower pipeline are equipped with seal nipple, pass through seal nipple and corresponding portion
Part is connected, to guarantee the sealing of each interface.
Preferably, the wireless transmitter module is ZigBee signal emission module.
In the above-mentioned technical solutions, the detected part on cutterhead is arranged in airtight cavity, by check-valves, connecting line to
High pressure gas is passed through in airtight cavity, check-valves can be realized pressure holding function, and check-valves is opened in the case where being higher than certain pressure, be filled with
High pressure gas；Gas replenishment process is completed, which, which closes, carries out pressure maintaining.When detected part abrasion to a certain extent, airtight cavity also with
Be worn through, in high pressure gas leakage, pressure change is detected by pressure sensor, that is, can determine whether detected part
Wear-out failure.Since gas pressure is affected by temperature, real time temperature is detected using temperature sensor, is detected with pressure sensor
Data combine, to obtain amendment pressure value, the pressure and temperature data detected are wirelessly transmitted to host computer and are handled,
Come judge confirm point position whether occur abrasion lead to pressure release the case where, staff makes reply according to judging result and arranges
It applies.
The application method of above-mentioned pressure type shield cutter cutter abrasion detection device, including the following steps:
(1) airtight cavity is fixedly mounted on to the detected part of knife disc tool, connecting line and process of signal transmission mechanism
Correspondence installs, and checks the leakproofness of pipeline, connector, device is allowed to reach good pressure holding effect；
(2) debug the detection device, keep the signal acquisition of pressure sensor and temperature sensor, transmission normal, pass through to
A certain amount of gas of injection in check-valves, the transmission data that observation host computer receives, confirms the pressure maintaining situation of device；
(3) after confirming that the pressure maintaining of device is all right, by check-valves, into connecting line and airtight cavity, interior injection is high
Air is pressed, pressure sensor, temperature sensor real-time detection to data carry out signal conversion through signal conditioner, then by wireless
Transmitting module, signal receiving module are transferred to host computer and are handled；
(4) when cutterhead detected part is worn down to a certain degree, airtight cavity can also be worn, when airtight cavity is worn through
When, the intracorporal high pressure gas of chamber can be revealed, and the pressure data that pressure sensor detects generates acute variation, and data-signal is passed
It is defeated to arrive host computer, alarm signal is issued after host computer processing, engineers and technicians are it can be learnt that detection site position is ground
Damage, then takes counter-measure.
The utility model has the beneficial effects that:
1. the utility model is directed to the deficiency of existing hydraulic type wear detector, pacify in the position to be measured of shield cutter
Airtight cavity is filled, high pressure gas is passed through into airtight cavity by connecting line, pressure holding function is realized using check-valves, using pressure
Force snesor and air pressure and temperature data in temperature sensor real-time detection pipeline, pressure of the pressure sensor to intracavity gas
It measures, since gas pressure is affected by temperature, temperature signal is obtained using temperature sensor to correct pressure value；Together
When by itself and wireless transmission of signal condition the data measured are reached into host computer processing, when detected part may wear to certain journey
Degree, airtight cavity are also worn therewith, and the high pressure gas after cavity damage in it generates leakage, and pressure sensor detects cavity gas
Change dramatically will occur for pressure, and it is worn out to judge that the test point occurs accordingly.
It, can 2. the utility model judges whether detection position the case where abrasion leads to pressure release occurs by pressure detecting
The arrangement for simplifying pipeline, improves the quantity of point layout, and can directly determine the specific location of abrasion, this is slurry shield
In construction there is an urgent need to.The device, which has, simultaneously shares signal conditioner and wireless transmission with other detection devices, receives mould
The potentiality such as block can greatly reduce cost, especially suitable in slurry balance shield construction.
3. the mode of the utility model using gas pressure detecting reduces pollution, together instead of hydraulic oil detection mode
Shi Caiyong pressure sensor, temperature sensor and the transmitting that signal is realized by wireless technology, have abandoned using oil circuit and have transmitted
The defect of signal, simplifies oil circuit, changes since oil circuit arrangement limitation is unable to the defect of fixed-point implementation wear detection.In device
Signal conditioner, wireless signal transmitting, the receiving module used can be shared with the module in existing equipment, can greatly be saved
About cost.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model pressure type shield cutter cutter abrasion detection device；
Fig. 2 is the schematic diagram that airtight cavity is mounted on cutterhead front panel；
Fig. 3 is pressure curve when detection device operates normally；
Fig. 4 operate normally when and pressure curve schematic diagram when wear-out failure；
Wherein 1 is airtight cavity, and 2 be gasket, and 3 be pipe joint, and 4 be upper pipeline, and 5 be four-way connection, and 6 pass for pressure
Sensor, 7 be temperature sensor, and 8 be two pass joints, and 9 be check-valves；10 be signal conditioner, and 11 be wireless transmitter module, and 12 are
Signal receiving module, 13 be host computer, and 14 be lower pipeline, and 15 be cutterhead.
Specific embodiment
Illustrate specific embodiment of the present utility model below with reference to embodiment, but following embodiment is used only in detail
Illustrate the utility model, does not limit the scope of the utility model in any way.
Embodiment 1: a kind of pressure type shield cutter cutter abrasion detection device, referring to Fig. 1-Fig. 2, including airtight cavity 1,
Connecting line and process of signal transmission mechanism, airtight cavity 1 are fixedly mounted on the detected part of cutterhead 15.
Connecting line includes that upper pipeline 4, lower pipeline 14, four-way connection 5 and two pass joints 8, the lower part of airtight cavity 1 pass through
Pipe joint 3 is connected with 4 top of upper pipeline；The upper interface and lower interface of 5 side of four-way connection are separately connected upper pipeline 4
Lower end and lower pipeline 14 upper end, the upper interface and lower interface of the other side be connected separately with pressure sensor 6 and temperature
Sensor 7；Two pass joints, 8 one end connects the end of lower pipeline 14, and the other end is connected with check-valves 9；The upper end interface of check-valves 9
It is correspondingly connected with external air source.Wherein, upper pipeline 4 and lower pipeline 14 are pressure line, at the both ends of upper pipeline and lower pipeline
It is equipped with seal nipple, is connected by seal nipple with corresponding component, guarantees the sealing of each interface.
Process of signal transmission mechanism includes signal conditioner 10, wireless transmitter module 11, signal receiving module 12 and upper
Machine 13, pressure sensor 6 and temperature sensor 7 are electrically connected by shielding line with signal conditioner 10 respectively, signal conditioner 10
Electrical connection corresponding with wireless transmitter module 11, signal receiving module 12 match with wireless transmitter module 11, wireless for receiving
The signal that transmitting module 11 issues, signal receiving module 12 are correspondingly connected with host computer 13.Signal conditioner 10 is used for pressure
Sensor and the signal of temperature sensor detection are converted into standard signal and carry out A/D conversion, built-in in signal conditioner 10
Detachable rechargeable battery can be pressure sensor 6, temperature sensor 7, signal conditioner 10, the power supply of wireless transmitter module 11.
Wireless transmitter module 11 is ZigBee signal emission module, and the signal that pressure sensor 6 and temperature sensor 7 are detected is converted
Emitted for digital signal, signal receiving module 12 can receive ZigBee signal, and synchronous signal receiving module 12 is reserved wired
Signal is transmitted to host computer 13 by wired mode and handled by communication interface.
Wherein, airtight cavity 1 is the rectangular or cylindrical of inner hollow, and is equipped with and pipe joint in the lower part of its bottom surface
3 interfaces being connected through a screw thread.The airtight cavity of other shapes can also be used, it is desirable that its middle part is cavity, and inside can be passed through height
It calms the anger body, there are screw threads and pipe joint to cooperate for opening, the gas-tight channel in addition to opening.In airtight cavity 1 and pipe
The junction of road connector 2 is equipped with gasket, and sealant also can be used to realize further sealing, guarantees that its body does not occur for connecting portion
Leakage.
The material of detected part of material and knife disc tool of airtight cavity 1 is identical, grinds airtight cavity and detected part
Damage effect is consistent, and guarantees the accuracy of testing result.If the material of cutterhead is Q345 steel, then airtight cavity also uses Q345
Steel is made, and is weldingly fixed on position to be measured near cutterhead front panel, rear panel or cutter, as shown in Figure 2.
The application method of pressure type shield cutter cutter abrasion detection device in embodiment 1, including the following steps:
(1) airtight cavity 1 is fixedly mounted on to the detected part of cutterhead 15, connecting line and process of signal transmission mechanism pair
It should install, check the leakproofness of pipeline, connector, device is allowed to reach good pressure holding effect.
(2) debug the detection device, keep the signal acquisition of pressure sensor and temperature sensor, transmission normal, pass through to
A certain amount of gas of injection in check-valves, the transmission data that observation host computer receives, confirms the pressure maintaining situation of device.If protected
It presses effect bad, goes through the leakproofness of pipeline, connector, carry out seal approach, device is allowed to reach good pressure holding effect.
(3) after confirming that the pressure maintaining of device is all right, by check-valves, into connecting line and airtight cavity, interior injection is high
Air is pressed, pressure sensor, temperature sensor real-time detection to data carry out signal conversion through signal conditioner, then by wireless
Transmitting module, signal receiving module are transferred to host computer and are handled；
It since gas pressure is related to temperature, is converted according to The Ideal-Gas Equation PV=nRT, keeps volume V not
Become, temperature t1DEG C, pressure P1Gas, being converted to gas pressure intensity at 20 DEG C is, such as by changing
It is that 2.5MPa(can be set according to actual conditions that calculation, which requires gas pressure at 20 DEG C, herein by taking 2.5MPa as an example).
(4) when cutterhead detected part is worn down to a certain degree, airtight cavity can also be worn, when airtight cavity is worn through
When, the intracorporal high pressure gas of chamber can be revealed, and the pressure data that pressure sensor detects generates acute variation, and data-signal is passed
It is defeated to arrive host computer, alarm signal is issued after host computer processing, engineers and technicians are it can be learnt that detection site position is ground
Damage, then takes counter-measure.
After the detection device works normally, according to the numerical value that pressure sensor, temperature sensor detect, it is converted into 20 in real time
Pressure value at DEG C, the pressure-time curve that host computer interface is shown when normal work are Fig. 2.When pressure time gradient (pressure
Power variable quantity/time interval) > threshold value, it can determine whether out that worn out phenomenon occurs in the measuring point, host computer generates alarm, curve in Fig. 3
Second half section pressure sharply declines, and wear-out failure occurs in the pressure time gradient G T.GT.GT threshold decision measuring point, and host computer issues alarm signal
Number, engineers and technicians take counter-measure.
If not generating Threshold Alerts, but gas pressure has certain decline after running the long period, belong to normal a small amount of
Gas leakage phenomenon can carry out tonifying Qi operation by check-valves；It needs to regularly replace the electricity in signal conditioner in use process
Pond.
The specific working mode of the utility model are as follows: airtight cavity is fixed to the detected part of knife disc tool, is led to
It crosses check-valves to connect with external air source, high pressure gas is passed through into cavity, check-valves can be realized pressure holding function, certain being higher than
Check-valves is opened under pressure, is filled with high pressure gas；Gas replenishment process is completed, which, which closes, carries out pressure maintaining.Pressure sensor and temperature
The pressure of acquisition, temperature signal are transmitted to signal tune by shielding line by the intracorporal air pressure of sensor real-time monitoring chamber and temperature
Manage device, be transferred to wireless transmitter module after A/D is converted and launch, signal through center cone outside signal receiving module receive,
And the digital data transmission received to the indoor host computer of shield master control is subjected to calculation process, to knife disc tool state of wear
It is monitored, judges.When cutterhead occur abrasion to a certain extent, the airtight cavity of detected part is worn through, in gas let out
Dew, pressure sensor detect that change dramatically occurs for the intracorporal pressure of chamber, and the signal that host computer processing receives judges portion to be measured
Position is worn through, and sends warning signal, staff makes alignment processing.The utility model has compact structure and easy to use
Advantage can directly judge the abrasion condition of detecting location, abandon traditional hydraulic type wear detector complexity
It can only determine that leakage, which occurs, there are cavity to a certain group of measuring point wear-out failure occurs after oil piping system and generation pressure release, it cannot be fast
Speed determines the defect problem of specific wear point.Meanwhile the device can be with the components such as the rotation detection device that uses in shield
It realizes and integrates, share signal conditioner, wireless transmitter module, signal receiving module, can greatly reduce equipment cost.
Related equipment component is conventional equipment element unless otherwise instructed in the embodiment above, related
Connection type, control mode are conventional connection type, control mode unless otherwise instructed.
The utility model is described in detail above in conjunction with embodiment, but person of ordinary skill in the field's energy
It is enough to understand, without departing from the purpose of the present invention, each design parameter in above-described embodiment can also be carried out
Change, forms multiple specific embodiments, is the common variation range of the utility model, is no longer described in detail one by one herein.
Claims (9)
1. a kind of pressure type shield cutter cutter abrasion detection device, which is characterized in that including airtight cavity, connecting line and letter
Number transmission process mechanism, the airtight cavity are fixedly mounted on the detected part of knife disc tool；
The connecting line includes upper pipeline, lower pipeline, four-way connection and two pass joints, and the lower part of the airtight cavity passes through pipe
Road connector is connected with upper pipeline top；The upper interface and lower interface of the four-way connection side be separately connected upper pipeline and
Lower pipeline, the upper interface and lower interface of the other side are connected separately with pressure sensor and temperature sensor；Described two connect
First end connects lower pipeline, and the other end is connected with check-valves；Upper end interface and the external air source of the check-valves are correspondingly connected with；
The process of signal transmission mechanism includes signal conditioner, wireless transmitter module, signal receiving module and host computer, described
Pressure sensor and temperature sensor pass through shielding line respectively and are electrically connected with the signal conditioner, the signal conditioner and institute
The corresponding electrical connection of wireless transmitter module is stated, the signal receiving module matches with the wireless transmitter module, for receiving nothing
The signal that line transmitting module issues, the signal receiving module are correspondingly connected with host computer.
2. pressure type shield cutter cutter abrasion detection device according to claim 1, which is characterized in that the closed chamber
Body is the rectangular or cylindrical of inner hollow, and is equipped in the lower part of its bottom surface and connects with what the pipe joint was connected through a screw thread
Mouthful.
3. pressure type shield cutter cutter abrasion detection device according to claim 2, which is characterized in that described closed
The junction of cavity and pipe joint is equipped with gasket.
4. pressure type shield cutter cutter abrasion detection device according to claim 1, which is characterized in that described two connect
Head is two-way angle coupling.
5. pressure type shield cutter cutter abrasion detection device according to claim 1, which is characterized in that the closed chamber
The material of detected part of material and knife disc tool of body is identical.
6. pressure type shield cutter cutter abrasion detection device according to claim 1, which is characterized in that the closed chamber
Body Q345 steel is weldingly fixed on position to be measured near cutterhead front panel, rear panel or cutter.
7. pressure type shield cutter cutter abrasion detection device according to claim 1, which is characterized in that the upper pipeline
It is pressure line with lower pipeline.
8. pressure type shield cutter cutter abrasion detection device according to claim 7, which is characterized in that the upper pipeline
It is equipped with seal nipple with the both ends of lower pipeline, is connected by seal nipple with corresponding component.
9. pressure type shield cutter cutter abrasion detection device according to claim 1, which is characterized in that the wireless hair
Penetrating module is ZigBee signal emission module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821578715.5U CN208902528U (en) | 2018-09-27 | 2018-09-27 | A kind of pressure type shield cutter cutter abrasion detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821578715.5U CN208902528U (en) | 2018-09-27 | 2018-09-27 | A kind of pressure type shield cutter cutter abrasion detection device |
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| CN208902528U true CN208902528U (en) | 2019-05-24 |
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| CN201821578715.5U Active CN208902528U (en) | 2018-09-27 | 2018-09-27 | A kind of pressure type shield cutter cutter abrasion detection device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982208A (en) * | 2018-09-27 | 2018-12-11 | 盾构及掘进技术国家重点实验室 | A kind of pressure type shield cutter cutter abrasion detection device and its application method |
| CN114375373A (en) * | 2019-08-28 | 2022-04-19 | Avl李斯特有限公司 | Rim for measuring brake wear of wheel brake |
-
2018
- 2018-09-27 CN CN201821578715.5U patent/CN208902528U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108982208A (en) * | 2018-09-27 | 2018-12-11 | 盾构及掘进技术国家重点实验室 | A kind of pressure type shield cutter cutter abrasion detection device and its application method |
| CN108982208B (en) * | 2018-09-27 | 2024-03-15 | 盾构及掘进技术国家重点实验室 | Pressure type shield cutter head cutter abrasion detection device and application method thereof |
| CN114375373A (en) * | 2019-08-28 | 2022-04-19 | Avl李斯特有限公司 | Rim for measuring brake wear of wheel brake |
| CN114375373B (en) * | 2019-08-28 | 2024-03-05 | Avl李斯特有限公司 | Measuring rim for measuring brake wear of wheel brakes |
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