CN111272047A - Shield tail gap measuring device and method for shield machine - Google Patents
Shield tail gap measuring device and method for shield machine Download PDFInfo
- Publication number
- CN111272047A CN111272047A CN202010219428.0A CN202010219428A CN111272047A CN 111272047 A CN111272047 A CN 111272047A CN 202010219428 A CN202010219428 A CN 202010219428A CN 111272047 A CN111272047 A CN 111272047A
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- shield tail
- contact plate
- shield
- wall
- clearance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/14—Measuring arrangements characterised by the use of mechanical techniques for measuring distance or clearance between spaced objects or spaced apertures
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/0002—Arrangements for supporting, fixing or guiding the measuring instrument or the object to be measured
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- General Physics & Mathematics (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention relates to a shield tail clearance measuring device of a shield tunneling machine, wherein a shield tail clearance is formed between the inner wall of a shield tail and the outer wall of a corresponding duct piece, and the measuring device comprises: the end part of the contact plate is fixedly arranged on the inner wall of the shield tail and is provided with an elastic contact plate, the contact plate is bent, one side of the contact plate, far away from the shield tail, can rotate around the end part fixedly arranged on the inner wall of the shield tail to be adjusted, and one side of the contact plate, far away from the shield tail, is abutted against the outer wall of the duct piece; and the angle sensor is fixedly connected to the contact plate and used for measuring the rotating angle of the contact plate, when the gap between the shield tails changes, the contact plate deforms, so that one side, attached to the outer wall of the duct piece, of the contact plate rotates around the end part fixedly arranged on the inner wall of the shield tail, the rotating angle value of the contact plate is measured through the angle sensor, and the corresponding gap between the shield tails can be calculated according to the angle value. The invention avoids the problem that the non-contact measurement mode adopted in the prior art is easily influenced by the external environment, so that the measurement data is more accurate.
Description
Technical Field
The invention relates to the technical field of shield machines, in particular to a shield tail gap measuring device and a shield tail gap measuring method of a shield machine.
Background
The shield tail clearance is an important technical index in the construction of the shield machine, and the shield tail clearance can influence whether the segments of the shield machine can be normally installed and the deviation rectifying posture of the shield machine, so that the subsequent construction planning of equipment and the construction quality of a tunnel are influenced. The shield tail clearance measuring object is the distance between the shield tail and the duct piece, and the shield tail and the duct piece move relatively, so that the shield tail clearance is measured by adopting a non-contact measuring mode in the prior art. For example, an optical instrument is used to measure the distance of the shield tail gap through visual identification and conversion, but such a non-contact measurement method is easily affected by the external environment, so that the measurement error of the shield tail gap is large.
Therefore, it is desirable to provide a device and a method for measuring a shield tail clearance of a shield machine, which can measure more accurately, to solve the above-mentioned technical problems.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a shield tail clearance measuring device and a shield tail clearance measuring method of a shield machine, so as to solve the problem that the shield tail clearance error measured by the existing shield tail clearance measuring method is large.
In order to achieve the above object, the present invention provides a shield tail gap measuring device for a shield tunneling machine, wherein the shield tail gap is formed between an inner wall of the shield tail and an outer wall of a corresponding duct piece, and the measuring device comprises:
the end part of the contact plate is fixedly arranged on the inner wall of the shield tail and is provided with an elastic contact plate, the contact plate is bent, one side, away from the shield tail, of the contact plate can rotate around the end part fixedly arranged on the inner wall of the shield tail to be adjusted, and one side, away from the shield tail, of the contact plate is abutted to the outer wall of the duct piece; and
fixed connection in the angle sensor of contact plate is used for measuring the contact plate pivoted angle when the shield tail clearance changes, the contact plate takes place deformation and then makes the contact plate with one side that the section of jurisdiction outer wall pasted is round set firmly in the tip of shield tail inner wall rotates, through angle sensor records the contact plate pivoted angle value, according to the angle value can calculate corresponding shield tail clearance.
According to the shield tail clearance measuring device, the elastic contact plate is arranged, when the shield tail clearance is changed, the contact plate deforms, so that the side, attached to the outer wall of the duct piece, of the contact plate rotates around the end portion fixedly arranged on the inner wall of the shield tail, the rotating angle value of the contact plate is measured through the angle sensor, and the corresponding shield tail clearance can be calculated according to the angle value.
The shield tail clearance measuring device of the shield tunneling machine is further improved in that the shield tunneling machine further comprises an elastic piece, one end of the elastic piece is fixedly connected to the inner wall of the shield tail, the other end of the elastic piece is fixedly connected to one side, far away from the shield tail, of the contact plate, and the contact plate is supported against the contact plate so that the contact plate is tightly attached to the outer wall of the duct piece.
The shield tail clearance measuring device of the shield tunneling machine is further improved in that a connecting shaft parallel to the inner wall of the shield tail is arranged at the position, close to the shield tail, of the contact plate;
a coupling is mounted and connected at one end of the connecting shaft, which is far away from the contact plate;
the angle sensor is arranged on the inner wall of the shield tail;
the angle sensor is connected with one end, far away from the connecting shaft, of the coupler through a rotating shaft in an installing mode.
The shield tail clearance measuring device of the shield tunneling machine is further improved in that the shield tunneling machine further comprises a fixing plate fixedly arranged on the inner wall of the shield tail;
the contact plate and the elastic piece are fixedly arranged on the fixing plate.
The shield tail clearance measuring device of the shield machine is further improved in that the device further comprises a PLC which is in communication connection with the angle sensor, the PLC receives the angle value sent by the angle sensor, and then the corresponding shield tail clearance is obtained through calculation.
The invention also provides a measuring method of the shield tail clearance measuring device of the shield tunneling machine, which comprises the following steps:
fixing the end part of the contact plate on the inner wall of the shield tail, and abutting one side, far away from the shield tail, of the contact plate on the outer wall of the duct piece;
fixedly connecting the angle sensor to the contact plate, and measuring the rotation angle value of the contact plate through the angle sensor;
and calculating the corresponding shield tail clearance according to the angle value.
The measuring method of the shield tail clearance measuring device of the shield machine is further improved in that a PLC (programmable logic controller) in communication connection with the angle sensor is provided, and the corresponding shield tail clearance is calculated through the PLC.
The measuring method of the shield tail clearance measuring device of the shield tunneling machine is further improved in that a plurality of pairs of shield tail clearance measuring devices are uniformly distributed on the inner wall of the shield tail corresponding to the outer wall of the duct piece, a plurality of sets of shield tail clearance data of different positions of the shield tail clearance are measured through the plurality of pairs of shield tail clearance measuring devices, and whether the duct piece is accurately installed or not is obtained through comparing and analyzing each set of shield tail clearance data.
Drawings
Fig. 1 is a schematic view of an installation structure of a shield tail clearance measuring device of a shield tunneling machine of the present invention installed between a shield tail and a duct piece.
Fig. 2 is a partially enlarged schematic view of a region a in fig. 1.
Fig. 3 is a top view of the shield tail clearance measuring device of the shield tunneling machine of the present invention, which is mounted on the shield tail.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention provides a shield tail clearance measuring device and a shield tail clearance measuring method of a shield tunneling machine, which are used for measuring a shield tail clearance, wherein the shield tail clearance is formed between the inner wall of a shield tail and the outer wall of a corresponding duct piece. The shield tail clearance measuring device comprises a contact plate and an angle sensor, wherein the contact plate is elastic, when the shield tail clearance is changed, the contact plate deforms, so that one side, attached to the outer wall of a duct piece, of the contact plate rotates around the end fixedly arranged on the inner wall of the shield tail, the rotating angle value of the contact plate is measured through the angle sensor, and the corresponding shield tail clearance can be calculated according to the angle value.
The shield tail clearance measuring device of the shield tunneling machine of the invention is explained below with reference to the accompanying drawings.
Referring to fig. 1 and fig. 2, fig. 1 shows a schematic view of an installation structure of a shield tail gap measuring device of a shield tunneling machine of the present invention installed between a shield tail and a segment, and fig. 2 shows a partially enlarged schematic view of a region a in fig. 1. In this embodiment, a shield tail clearance measuring device of shield machine, shield tail clearance are formed between 8 inner walls of shield tail and the section of jurisdiction 9 outer wall that corresponds, and measuring device includes: tip set firmly in 8 inner walls of shield tail and have elastic contact plate 1 and fixed connection in contact plate 1's angle sensor 2, contact plate 1 is crooked form and contact plate 1 one side of keeping away from shield tail 8 can rotate around the tip that sets firmly on 8 inner walls of shield tail and adjust, one side top that 8 outer walls of shield tail were kept away from to contact plate 1 pastes in section of jurisdiction 9 outer wall, angle sensor 2 is used for measuring 1 pivoted angle of contact plate, when 8 clearance changes in the shield tail, contact plate 1 takes place deformation and then makes contact plate 1 and 9 outer walls of section of jurisdiction paste one side round the tip that sets firmly in 8 inner walls of shield tail rotate, measure 1 pivoted angle value of contact plate through angle sensor 2, can calculate corresponding 8 clearances of shield tail according to the angle value.
The measuring device in this embodiment adopts a contact measuring method to measure the gap between the shield tails 8, the end of the contact plate 1 is fixed on the inner wall of the shield tail 8, the side of the contact plate 1 away from the shield tail 8 is attached to the outer wall of the duct piece 9, the contact plate 1 has elasticity to make the contact plate 1 be located between the inner wall of the shield tail 8 and the outer wall of the duct piece 9 in a bending shape, the side of the contact plate 1 away from the shield tail 8 can be adjusted by rotating around the end fixed on the inner wall of the shield tail 8, when the gap between the shield tails 8 changes, the contact plate 1 deforms to make the side of the contact plate 1 attached to the outer wall of the duct piece 9 rotate around the end fixed on the inner wall of the shield tail 8, the angle value of the rotation of the contact plate 1 is measured by the angle sensor 2, the corresponding gap between the shield tails 8 can be calculated according to the angle value, the measured data is more accurate.
Referring to fig. 1 and 2, in one embodiment, the measuring device further includes an elastic member 4, one end of the elastic member 4 is fixedly connected to the inner wall of the shield tail 8, and the other end of the elastic member 4 is fixedly connected to the side of the contact plate 1 far away from the shield tail 8 and props up the contact plate 1 so that the contact plate 1 is tightly attached to the outer wall of the duct piece 9. Elastic component 4 props between 8 inner walls of shield tail and the section of jurisdiction 9 outer wall on the top under its own elasticity effect, and along with the increase in 8 clearances of shield tail or diminish, contact plate 1 takes place deformation under the elasticity of elastic component 4 and the elasticity effect of contact plate 1 self for the state of pasting in section of jurisdiction 9 outer wall is kept on the top in beginning contact plate 1 end. Because a plurality of burrs are arranged on the outer wall of the duct piece 9, a certain gap is always kept between the outer wall of the duct piece 9 and the inner wall of the shield tail 8 under the supporting action of the elasticity of the elastic piece 4, and the problem that the inner wall of the shield tail 8 is abraded by the burrs is avoided.
Referring to fig. 2 and 3, a connecting shaft 3 parallel to the inner wall of the shield tail 8 is arranged at a position, close to the shield tail 8, of the contact plate 1, a coupler 5 is installed and connected at one end, far away from the contact plate 1, of the connecting shaft 3, an angle sensor 2 is arranged on the inner wall of the shield tail 8, and the angle sensor 2 is installed and connected at one end, far away from the connecting shaft 3, of the coupler 5 through a rotating shaft 6. When the 8 clearances of shield tail change, contact plate 1 takes place deformation and then makes one side that contact plate 1 and section of jurisdiction 9 outer wall pasted rotate round the tip that sets firmly in 8 inner walls of shield tail, and then drive connecting axle 3 and rotate, pivot 6 passes through shaft coupling 5 and connecting axle 3 synchronous rotation, angle sensor 2 measures 6 pivoted angle values of pivot simultaneously, measure 1 pivoted angle values of contact plate for angle sensor 2 promptly, can calculate corresponding 8 clearances of shield tail according to this angle value, the problem that adopts non-contact's measurement mode to receive external environment influence easily among the prior art has been avoided, make measured data more accurate.
Referring to fig. 2, the measuring apparatus in this embodiment further includes a fixing plate 7 fixed on the inner wall of the shield tail 8, and the contact plate 1 and the elastic member 4 are fixed on the fixing plate 7.
Referring to fig. 2, specifically, the fixing plate 7 is fixed on the inner wall of the shield tail 8 by bolts 71.
The measuring device in this embodiment further includes a PLC in communication connection with the angle sensor 2, and the PLC receives the angle value sent by the angle sensor 2 and then calculates to obtain the corresponding gap of the shield tail 8.
Specifically, when the measuring device in this embodiment is installed, when the initial installation is measured and calculated according to the first installation position of the contact plate 1 on the inner wall of the shield tail 8, the second installation position of the elastic element 4 on the inner wall of the shield tail 8 and the third installation position of the outer wall of the duct piece 9 to which the contact plate 1 is attached during the initial installation, the initial angle value between the contact plate 1 and the inner wall of the shield tail 8 and the gap value of the shield tail 8 during the initial installation are obtained by the PLC, and when the gap of the shield tail 8 changes, the PLC calculates the current actual gap value of the shield tail 8 according to the initial angle value, the gap value of the shield tail 8 and the real-time angle change value sent by the angle sensor 2.
Preferably, a plurality of pairs of shield tail clearance measuring devices are uniformly distributed on the inner wall of the shield tail 8 corresponding to the outer wall of the duct piece 9, each pair of shield tail clearance measuring devices are symmetrically arranged relative to the duct piece 9, a plurality of groups of shield tail clearance data of different positions of the shield tail 8 clearance are measured by the plurality of pairs of shield tail clearance measuring devices, and whether the duct piece 9 is accurately installed or not is obtained by comparing and analyzing each group of interval data, so that the posture of the shield machine can be better controlled and corrected.
The following describes the working process of the shield tail clearance measuring device of the shield tunneling machine of the present invention.
When the 8 clearances of shield tail change, contact plate 1 takes place deformation and then makes one side that contact plate 1 and section of jurisdiction 9 outer wall pasted rotate round the tip that sets firmly in 8 inner walls of shield tail, and then drives connecting axle 3 and rotate, and pivot 6 passes through shaft coupling 5 and connecting axle 3 synchronous rotation, and angle sensor 2 measures the pivoted angle value of pivot 6 simultaneously, measures 1 pivoted angle value of contact plate for angle sensor 2 promptly, can calculate corresponding 8 clearances of shield tail according to this angle value.
The invention also provides a measuring method of the shield tail clearance measuring device of the shield tunneling machine, which comprises the following steps:
the end part of the contact plate 1 is fixedly arranged on the inner wall of the shield tail 8, and one side of the contact plate 1, which is far away from the shield tail 8, is abutted against the outer wall of the duct piece 9.
The angle sensor 2 is fixedly connected to the contact plate 1, the rotating angle value of the contact plate 1 is measured through the angle sensor 2, and the corresponding gap of the shield tail 8 is calculated according to the angle value.
And providing a PLC (programmable logic controller) in communication connection with the angle sensor 2, and calculating to obtain the corresponding gap of the shield tail 8 through the PLC.
Correspond section of jurisdiction 9 outer wall evenly distributed on 8 inner walls of shield tail and set up a plurality of pairs of shield tail clearance measuring device of shield machine, every pair of shield tail clearance measuring device of shield machine sets up for section of jurisdiction 9 symmetry, survey multiunit shield tail clearance data of a plurality of different positions in 8 clearances of shield tail through a plurality of pairs of shield tail clearance measuring device of shield machine, whether accurately install through the section of jurisdiction of every group interval data of contrastive analysis, thereby can control and rectify the gesture of shield machine better.
By adopting the technical scheme, the invention has the following beneficial effects:
according to the shield tail clearance measuring device, the elastic contact plate is arranged, when the shield tail clearance is changed, the contact plate deforms, so that the side, attached to the outer wall of the duct piece, of the contact plate rotates around the end portion fixedly arranged on the inner wall of the shield tail, the rotating angle value of the contact plate is measured through the angle sensor, and the corresponding shield tail clearance can be calculated according to the angle value. And the contact plate is matched with the elastic piece to enable the outer wall of the duct piece and the inner wall of the shield tail to always keep a certain distance, so that the abrasion of burrs on the outer wall of the duct piece on the inner wall of the shield tail is prevented.
It should be noted that the structures, ratios, sizes, and the like shown in the drawings attached to the present specification are only used for matching the disclosure of the present specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions of the present invention, so that the present invention has no technical essence, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
While the present invention has been described in detail and with reference to the embodiments thereof as illustrated in the accompanying drawings, it will be apparent to one skilled in the art that various changes and modifications can be made therein. Therefore, certain details of the embodiments are not to be interpreted as limiting, and the scope of the invention is to be determined by the appended claims.
Claims (8)
1. The utility model provides a shield tail clearance measuring device of shield constructs machine, the shield tail clearance form in between shield tail inner wall and the section of jurisdiction outer wall that corresponds, its characterized in that, measuring device includes:
the end part of the contact plate is fixedly arranged on the inner wall of the shield tail and is provided with an elastic contact plate, the contact plate is bent, one side, away from the shield tail, of the contact plate can rotate around the end part fixedly arranged on the inner wall of the shield tail to be adjusted, and one side, away from the shield tail, of the contact plate is abutted to the outer wall of the duct piece; and
fixed connection in the angle sensor of contact plate is used for measuring the contact plate pivoted angle when the shield tail clearance changes, the contact plate takes place deformation and then makes the contact plate with one side that the section of jurisdiction outer wall pasted is round set firmly in the tip of shield tail inner wall rotates, through angle sensor records the contact plate pivoted angle value, according to the angle value can calculate correspondingly the shield tail clearance.
2. The device for measuring the gap between the shield tail of the shield tunneling machine of claim 1, further comprising an elastic member, wherein one end of the elastic member is fixedly connected to the inner wall of the shield tail, and the other end of the elastic member is fixedly connected to the side of the contact plate away from the shield tail and props up the contact plate to enable the contact plate to be tightly attached to the outer wall of the segment.
3. The shield tail clearance measuring device of the shield tunneling machine of claim 2, wherein a connecting shaft parallel to the inner wall of the shield tail is arranged at the position, close to the shield tail, of the contact plate;
a coupling is mounted and connected at one end of the connecting shaft, which is far away from the contact plate;
the angle sensor is arranged on the inner wall of the shield tail;
the angle sensor is connected with one end, far away from the connecting shaft, of the coupler through a rotating shaft in an installing mode.
4. The shield tail clearance measuring device of the shield tunneling machine of claim 2, further comprising a fixing plate fixedly arranged on the inner wall of the shield tail;
the contact plate and the elastic piece are fixedly arranged on the fixing plate.
5. The shield tail clearance measuring device of the shield tunneling machine of claim 1, further comprising a PLC in communication connection with the angle sensor, wherein the PLC receives the angle value sent by the angle sensor and calculates the corresponding shield tail clearance.
6. A measuring method using the shield tail clearance measuring device of the shield tunneling machine according to claim 1, comprising the steps of:
fixing the end part of the contact plate on the inner wall of the shield tail, and abutting one side, far away from the shield tail, of the contact plate on the outer wall of the duct piece;
fixedly connecting the angle sensor to the contact plate, and measuring the rotation angle value of the contact plate through the angle sensor;
and calculating the corresponding shield tail clearance according to the angle value.
7. The method for measuring the shield tail clearance of the shield tunneling machine according to claim 6, further comprising the steps of:
and providing a PLC (programmable logic controller) in communication connection with the angle sensor, and calculating to obtain the corresponding shield tail gap through the PLC.
8. The method for measuring the shield tail clearance of the shield tunneling machine according to claim 6, further comprising the steps of:
the shield tail inner wall is provided with a plurality of pairs of shield tail clearance measuring devices corresponding to the pipe piece outer wall in an evenly distributed mode, a plurality of pairs of shield tail clearance measuring devices measure multiple groups of shield tail clearance data of different positions of the shield tail clearance, and whether the pipe piece is accurately installed or not is obtained through contrastive analysis of each group of shield tail clearance data.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010219428.0A CN111272047A (en) | 2020-03-25 | 2020-03-25 | Shield tail gap measuring device and method for shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010219428.0A CN111272047A (en) | 2020-03-25 | 2020-03-25 | Shield tail gap measuring device and method for shield machine |
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| Publication Number | Publication Date |
|---|---|
| CN111272047A true CN111272047A (en) | 2020-06-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010219428.0A Pending CN111272047A (en) | 2020-03-25 | 2020-03-25 | Shield tail gap measuring device and method for shield machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114111554A (en) * | 2021-11-22 | 2022-03-01 | 盾构及掘进技术国家重点实验室 | Real-time measuring device and method for shield tail clearance of resistance type shield/TBM (tunnel boring machine) |
-
2020
- 2020-03-25 CN CN202010219428.0A patent/CN111272047A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114111554A (en) * | 2021-11-22 | 2022-03-01 | 盾构及掘进技术国家重点实验室 | Real-time measuring device and method for shield tail clearance of resistance type shield/TBM (tunnel boring machine) |
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