CN217155349U - Shield tail clearance automatic measuring device - Google Patents
Shield tail clearance automatic measuring device Download PDFInfo
- Publication number
- CN217155349U CN217155349U CN202220180823.7U CN202220180823U CN217155349U CN 217155349 U CN217155349 U CN 217155349U CN 202220180823 U CN202220180823 U CN 202220180823U CN 217155349 U CN217155349 U CN 217155349U
- Authority
- CN
- China
- Prior art keywords
- oil cylinder
- shield tail
- miniature hydraulic
- tail clearance
- hydraulic oil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000003921 oil Substances 0.000 claims description 44
- 239000010720 hydraulic oil Substances 0.000 claims description 30
- 230000005641 tunneling Effects 0.000 claims description 18
- 230000003993 interaction Effects 0.000 claims description 7
- 229910001369 Brass Inorganic materials 0.000 claims description 3
- 239000010951 brass Substances 0.000 claims description 3
- 238000003754 machining Methods 0.000 claims description 2
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 18
- 238000000034 method Methods 0.000 abstract description 9
- 238000010276 construction Methods 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 2
- 230000009471 action Effects 0.000 description 4
- 230000008569 process Effects 0.000 description 3
- 238000011084 recovery Methods 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000009412 basement excavation Methods 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The utility model relates to a shield tail clearance automatic measuring device, the device include miniature hydraulic cylinder and control system, wherein miniature hydraulic cylinder sets up between shield tail inner wall and section of jurisdiction, miniature hydraulic cylinder's cylinder piston can move towards the direction of section of jurisdiction is flexible, miniature hydraulic cylinder's oil inlet department is provided with the flowmeter, the flowmeter is used for measuring flow value when the cylinder piston stretches out, shield constructs quick-witted upper computer system basis flow value that the flowmeter recorded with ratio between miniature hydraulic cylinder's the bore reachs the elongation of cylinder piston is shield tail clearance numerical value promptly, control system connection control miniature hydraulic cylinder's operating condition. The utility model has the advantages that: the method has no construction risk and high efficiency, and effectively improves the measurement precision of shield tail clearance measurement; the structure is durable, the damage is not easy to happen, the installation is convenient, and the automation degree is high; simple and reasonable structure and is suitable for popularization.
Description
Technical Field
The utility model belongs to the technical field of subway shield tunnel tunnelling construction technology and specifically relates to a shield tail clearance automatic measuring device.
Background
The shield tail clearance is a parameter which is crucial to the control of the forming quality of the lining segment of the subway shield method, so that how to efficiently and accurately measure the shield tail clearance is one of important research directions for the tunnel excavation construction of the shield method.
The traditional shield tail clearance measurement method is that a steel ruler is manually utilized to enter a shield tail for measurement, although the measurement value is real and accurate, the problems of bad shield tail construction environment, narrow movement space, dense mechanical equipment and the like are solved, and in addition, the clearance measurement work is heavy, so that the normal tunneling and assembling progress is influenced, and great hidden danger is generated on the safety of measurement personnel.
The automatic measurement of the shield tail clearance at home and abroad mainly comprises two categories, namely a physical contact type measurement and an acousto-optic acquisition type measurement, wherein the shield tail is poor in measurement precision and low in practicability due to the fact that the shield tail has a severe space environment, and is high in dust emission and easy to interfere; the physical contact type shield tail gap measuring device which circulates on the market at present is inconvenient to install due to the fact that the gap of the shield tail is narrow, and cannot be effectively applied due to the fact that the device is directly contacted with the duct piece and is easy to damage.
Disclosure of Invention
The utility model aims to provide an automatic shield tail clearance measuring device according to the defects of the prior art, which measures the flow value of a miniature hydraulic oil cylinder by adopting a flowmeter and obtains the elongation of an oil cylinder piston by combining the cylinder diameter of the miniature hydraulic oil cylinder so as to obtain the shield tail clearance value; meanwhile, the control system is used for automatically controlling the shield tail clearance, and the measurement accuracy is improved on the basis of realizing automatic measurement.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
the utility model provides a shield tail clearance automatic measuring device which characterized in that: the device comprises a miniature hydraulic oil cylinder and a control system, wherein the miniature hydraulic oil cylinder is arranged between the inner wall of a shield tail and a duct piece, an oil cylinder piston of the miniature hydraulic oil cylinder can stretch and retract towards the direction of the duct piece, a flow meter is arranged at an oil inlet of the miniature hydraulic oil cylinder and used for measuring a flow value when the oil cylinder piston extends out, an upper computer system of the shield tunneling machine obtains the elongation of the oil cylinder piston according to the ratio between the flow value measured by the flow meter and the cylinder diameter of the miniature hydraulic oil cylinder, namely the shield tail clearance value, and the control system is connected with and controls the working state of the miniature hydraulic oil cylinder.
The control system is connected to the upper computer system of the shield tunneling machine through a PLC and is interlocked with the cutter head of the shield tunneling machine, so that the extension of the miniature hydraulic oil cylinder and the rotation of the cutter head of the shield tunneling machine are synchronous.
The control system comprises a controller and a wireless remote controller, the controller is installed on the miniature hydraulic oil cylinder, wireless signal interaction is formed between the wireless remote controller and the controller, and the wireless remote controller can be connected with and control the working state of the miniature hydraulic oil cylinder through the controller.
The wireless remote controller is provided with a remote controller display screen, an upper computer interlocking releasing button, an upper computer interlocking recovering button, an oil cylinder extending button, an oil cylinder retracting button and an emergency stop button.
The controller is connected with the flowmeter through a PLC connecting line to form data interaction.
And the cylinder sleeve of the miniature hydraulic oil cylinder is a brass finish machining cylinder sleeve.
The seal of the miniature hydraulic oil cylinder is a high-pressure wear-resistant seal.
The flowmeter is a high-precision turbine flow sensor.
The utility model has the advantages that: the method has no construction risk and high efficiency, and effectively improves the measurement precision of shield tail clearance measurement; the structure is durable, the damage is not easy to happen, the installation is convenient, and the automation degree is high; simple and reasonable structure and is suitable for popularization.
Drawings
Fig. 1 is a top view of the present invention;
fig. 2 is an elevation view of the present invention;
fig. 3 is a schematic view of a panel of the wireless remote control of the present invention.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:
as shown in fig. 1-3, the symbols 1-16 are respectively shown as: the device comprises an oil cylinder piston 1, an oil cylinder seal 2, an oil cylinder sleeve 3, a cylinder body 4, a controller 5, an oil inlet 6, an oil return opening 7, a display 8, a turbine flowmeter 9, a protective cylinder 10, a remote controller display screen 11, a release upper computer interlocking button 12, a recovery upper computer interlocking button 13, an oil cylinder extending button 14, an oil cylinder retracting button 15 and an emergency stop button 16.
Example (b): the shield tail gap automatic measuring device in the embodiment is used for measuring the gap between the tail part of the shield tunneling machine and the lining segment, so that the forming quality of the lining segment by the shield tunneling method is controlled.
As shown in fig. 1 and 2, the automatic shield tail clearance measuring device in the embodiment includes a micro hydraulic cylinder, a main body of the micro hydraulic cylinder includes a cylinder piston 1, a cylinder seal 2, a cylinder sleeve 3 and a cylinder body 4, wherein the cylinder body 4 is embedded on the inner wall of the shield tail of the shield tunneling machine and is arranged between the inner wall of the shield tail and the lining segment, the cylinder piston 1 is arranged in the cylinder body 4 through the cylinder sleeve 3 and can be extended and retracted under the hydraulic action, and the cylinder piston 1 can freely extend along the direction perpendicular to the axial direction of the tunnel, that is, freely extend and retract towards the lining segment; the oil cylinder seal 2 is arranged between the oil cylinder piston 1 and the oil cylinder sleeve 3 to play a role in sealing.
In the embodiment, the cylinder sleeve 3 of the oil cylinder can be finely processed by brass, so that the wear resistance and the self-lubricating property of the cylinder sleeve are effectively guaranteed, and the guidance quality and the service life of the piston 1 of the oil cylinder are kept. The oil cylinder seal 2 can adopt high-pressure wear-resistant seal, and the sealing reliability and the measuring accuracy are guaranteed.
As shown in fig. 1 and 2, the cylinder block 4 is provided with an oil inlet 6 and an oil return port 7, and the telescopic action of the cylinder piston 1 is controlled by supplying hydraulic oil to the oil inlet 6 and the oil return port 7. At the location of the oil inlet 6, a turbine flow meter 9 with a display 8 is arranged, which turbine flow meter 9 is used to measure the instantaneous flow at the oil inlet 6 and to accumulate the total flow value. The turbine flowmeter 9 is connected with the controller 5 through a PLC connecting line so as to transmit the measured specific flow value to the controller 5; the PLC connection line is embedded in the protective cylinder 10 to be protected. The controller 5 and a shield machine upper computer system of the shield machine form signal connection to form data interaction.
When the hydraulic lining machine is in actual use, hydraulic oil is supplied to the oil inlet 6, and the oil cylinder piston 1 extends out from the shield tail of the shield machine to the direction of the lining segment under the action of pressure until the oil cylinder piston 1 abuts against the lining segment. In the process, the turbine flowmeter 9 measures the accumulated total flow value of the hydraulic oil supplied from the oil inlet 6 and transmits the value to the controller 5 through the PLC connecting line, and the controller 5 transmits the value to the upper computer system of the shield tunneling machine through signals. After receiving the accumulated total flow value T measured by the turbine flowmeter 9, the upper computer system of the shield tunneling machine calculates the extension length L = T/S of the oil cylinder piston 1 by combining the known cylinder diameter S of the miniature hydraulic oil cylinder, and the extension length L of the oil cylinder piston 1 is the measured shield tail clearance value. The display 8 displays the instantaneous flow measured by the turbine flow meter 9 and the cumulative total flow value for viewing by a technician. And simultaneously, the upper system displays the measured shield tail clearance value L in an upper computer for shielding so that technicians can control the forming quality of the shield method lining segment according to the shield tail clearance data L.
In this embodiment, the automatic shield tail clearance measuring device is connected to an upper computer system of the shield tunneling machine through a PLC and is interlocked with the cutter head, so that the oil cylinder piston 1 and the cutter head rotate synchronously, thereby realizing automatic control of shield tail clearance measurement. Specifically, when the shield tunneling machine is switched to an assembling mode, an upper computer system of the shield tunneling machine simultaneously transmits signals to an automatic shield tail clearance measuring device, a cylinder piston 1 of a miniature hydraulic cylinder of the automatic shield tunneling machine is controlled to automatically retract between the inner wall of a shield tail and a lining segment, and shield tail clearance measurement is stopped; on the contrary, when the shield machine stops working, the upper computer system of the shield machine simultaneously transmits signals to control the automatic shield tail clearance measuring device to automatically perform shield tail clearance measurement in the process that the cutter head is changed from a rotating process to a rotating stop state.
As shown in fig. 3, the system for automatically measuring the gap between the shield tail and the shield tail in this embodiment may further be configured with a wireless remote controller, which may form a signal connection with the controller 5 for data interaction. The wireless remote controller has a remote controller display screen 11, a release upper computer interlocking button 12 and a recovery upper computer interlocking button 13, a cylinder extension button 14 and a cylinder retraction button 15, and an emergency stop button 16. The remote control display 11 can be used to display information, such as a shield tail clearance value L, an instantaneous flow rate of micro hydraulic light, an accumulated total flow rate value, and the like; the upper computer interlocking release button 12 and the upper computer interlocking recovery button 13 are used for switching and controlling the interlocking state between the shield tail clearance automatic measuring device and the shield machine upper computer system, so that the shield tail clearance automatic measuring device can be switched between an automatic control state and a manual control state; the oil cylinder extending button 14 and the oil cylinder retracting button 15 are used for manually controlling the working state of the miniature hydraulic oil cylinder, so that the miniature hydraulic oil cylinder is convenient to overhaul and can be used under special requirements, and the emergency stop button 16 is used for immediately braking the extending and retracting actions of the oil cylinder under emergency conditions, so that the safety is improved.
In the embodiment, in specific implementation: the controller 5 is internally provided with a wireless signal receiving transmitter, and the controller 5, the shield machine upper computer system and the wireless remote controller can be connected through wireless signals to carry out data interaction.
The shield tail clearance automatic measuring device in the embodiment adopts the mode that the oil cylinder piston 1 extends out to directly contact with the lining segment, has high measuring precision and can effectively guide subsequent construction. Meanwhile, the extension and retraction of the oil cylinder piston 1 are not influenced by larger dust raising of the shield tail and more muddy water on the inner wall of the shield tail, so that the accurate operation can be realized in severe environment, and the measurement precision of the gap between the shield tails is effectively improved.
Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, the description thereof is not repeated herein.
Claims (8)
1. The utility model provides a shield tail clearance automatic measuring device which characterized in that: the device comprises a miniature hydraulic oil cylinder and a control system, wherein the miniature hydraulic oil cylinder is arranged between the inner wall of a shield tail and a duct piece, an oil cylinder piston of the miniature hydraulic oil cylinder can stretch and retract towards the direction of the duct piece, a flow meter is arranged at an oil inlet of the miniature hydraulic oil cylinder and used for measuring a flow value when the oil cylinder piston extends out, an upper computer system of the shield tunneling machine obtains the elongation of the oil cylinder piston according to the ratio between the flow value measured by the flow meter and the cylinder diameter of the miniature hydraulic oil cylinder, namely the shield tail clearance value, and the control system is connected with and controls the working state of the miniature hydraulic oil cylinder.
2. The automatic shield tail clearance measuring device according to claim 1, wherein: the control system is connected to the upper computer system of the shield tunneling machine through a PLC and is interlocked with the cutter head of the shield tunneling machine, so that the extension of the miniature hydraulic oil cylinder and the rotation of the cutter head of the shield tunneling machine are synchronous.
3. The automatic shield tail clearance measuring device according to claim 1, wherein: the control system comprises a controller and a wireless remote controller, the controller is installed on the miniature hydraulic oil cylinder, wireless signal interaction is formed between the wireless remote controller and the controller, and the wireless remote controller can be connected with and control the working state of the miniature hydraulic oil cylinder through the controller.
4. The automatic shield tail clearance measuring device according to claim 3, wherein: the wireless remote controller is provided with a remote controller display screen, an upper computer interlocking releasing button, an upper computer interlocking recovering button, an oil cylinder extending button, an oil cylinder retracting button and an emergency stop button.
5. The automatic shield tail clearance measuring device according to claim 3, wherein: the controller is connected with the flowmeter through a PLC connecting line to form data interaction.
6. The automatic shield tail clearance measuring device according to claim 1, wherein: the cylinder sleeve of the miniature hydraulic oil cylinder is a brass finish machining cylinder sleeve.
7. The automatic shield tail clearance measuring device according to claim 1, wherein: the seal of the miniature hydraulic oil cylinder is a high-pressure wear-resistant seal.
8. The automatic shield tail clearance measuring device according to claim 1, wherein: the flowmeter is a high-precision turbine flow sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220180823.7U CN217155349U (en) | 2022-01-24 | 2022-01-24 | Shield tail clearance automatic measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220180823.7U CN217155349U (en) | 2022-01-24 | 2022-01-24 | Shield tail clearance automatic measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217155349U true CN217155349U (en) | 2022-08-09 |
Family
ID=82688956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220180823.7U Expired - Fee Related CN217155349U (en) | 2022-01-24 | 2022-01-24 | Shield tail clearance automatic measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217155349U (en) |
-
2022
- 2022-01-24 CN CN202220180823.7U patent/CN217155349U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103615255B (en) | A kind of variable cross-section mole of shield machine | |
| CN217155349U (en) | Shield tail clearance automatic measuring device | |
| CN112525141B (en) | Measuring method for tunnel deformation measurement and surveying equipment thereof | |
| CN109403984B (en) | Automatic guiding system for long-distance curve jacking pipe | |
| CN113187485B (en) | Bicycle type measuring equipment for tunnel surveying and using method | |
| CN109443284A (en) | A kind of shield machine excavation gap measuring apparatus | |
| CN109372531A (en) | Based on worm and gear can rapid changing knife New Kind of Hob tool apron | |
| CN210890359U (en) | Rectangular pipe jacking machine rotary joint with cutter head speed measuring function | |
| CN111734428B (en) | Over-excavation measuring device | |
| CN103628872A (en) | Folding-arm type tunneling machine capable of monitoring intelligently and automatically regulating rotate speed of cutting head | |
| CN207715153U (en) | A kind of shield machine and its tool wear monitoring and autocompensation installation | |
| CN102021258A (en) | Mud beating amount detector of hydraulic mud gun | |
| CN204128915U (en) | Shield machine cutter Visual retrieval sampling apparatus | |
| CN206801568U (en) | The topping machanism and development machine of a kind of development machine | |
| CN209355891U (en) | A kind of shield machine excavation gap measuring apparatus | |
| CN108745456B (en) | Jaw breaker angle monitoring device | |
| CN203626846U (en) | Shield machine variable cross-section driving device | |
| CN115307520A (en) | Automatic shield tail clearance measuring device and method | |
| CN107036800B (en) | Radial characteristic detecting system of mine head sheave rope groove | |
| CN202403683U (en) | Device for monitoring displacement of over cuter of shield machine | |
| CN203081454U (en) | Shield machine tail structure facilitating replacement of shield tail brushes | |
| CN212508277U (en) | Horizontal well plugging tester | |
| CN114251083A (en) | Electro-hydraulic integrated jumbolter control system and method | |
| CN211819440U (en) | Positioning mechanism for pipeline assembling machine | |
| CN220454501U (en) | Tunneling tunnel shape monitoring device of push bench |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220809 |