CN216115888U - Shield tail clearance measuring system of shield machine - Google Patents
Shield tail clearance measuring system of shield machine Download PDFInfo
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- CN216115888U CN216115888U CN202122203998.3U CN202122203998U CN216115888U CN 216115888 U CN216115888 U CN 216115888U CN 202122203998 U CN202122203998 U CN 202122203998U CN 216115888 U CN216115888 U CN 216115888U
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Abstract
The utility model provides a shield tail clearance measuring system of a shield machine, which comprises at least one infrared distance meter and an industrial control screen, wherein the infrared distance meter is connected with the industrial control screen through a communication line, and a signal measured by the infrared distance meter is transmitted into the industrial control screen through the communication line; the infrared distance measuring instrument is installed on the shield assembling machine ring plate, and the top of the infrared distance measuring instrument is consistent with the height of the shield assembling machine ring plate. The utility model displays the data measured by the laser range finders at each position through the calculation of the industrial personal computer, realizes the real-time measurement of the shield tail clearance, enables the shield machine operators to judge the propelling attitude of the shield machine in the current state more clearly, and has the advantages of simple and convenient installation and wiring, low cost, safety and reliability.
Description
Technical Field
The utility model relates to the field of measurement of subway tunnel shield machines, in particular to a system for measuring a shield tail gap of a shield machine.
Background
The shield constructs the machine in the pit construction, and the assembly of section of jurisdiction is gone on under the protection of shield tail, has certain clearance just can make the cyclic annular section of jurisdiction of assembling smoothly release the shield tail between section of jurisdiction and shield tail, and this clearance between shield inner wall and the section of jurisdiction outer wall is called the shield tail clearance promptly.
At present, factors affecting the gap between the shield tails include: firstly, the lengths of the thrust cylinders cannot be unified in the tunneling process of the shield tunneling machine and the like. And secondly, surface subsidence and other external factors.
Hazards of too small a shield tail gap include: firstly, the shield tail and the duct piece are excessively extruded, the abrasion of the seal brush of the shield tail is accelerated, and the duct piece is seriously broken. Secondly, the shield tail brush causes interference to the duct piece, the seal distribution of shield tail grease and the like is uneven, and the forward pushing resistance of the shield machine is increased, so that the construction period progress is influenced. And thirdly, the spliced annular duct piece deviates from the designed axis, the posture of the shield is changed, and the shield machine deviates from the preset line seriously.
At present, the shield tail clearance measurement method in the shield construction site is mainly manual measurement, generally, an engineer measures the distance from the inner wall of a duct piece to the inner wall of a tail shield at eight positions in a mode of a Chinese character 'mi' shape by using a common steel ruler, and the distance minus the thickness of the duct piece is the shield tail clearance.
However, the main drawbacks of this approach are as follows: firstly, due to manual measurement, measurement engineers are very likely to cause large measurement errors due to human factors such as improper operation and inaccurate reading.
Secondly, because do not have suitable space and stand, measurement engineer need climb the high operation, has certain potential safety hazard.
And thirdly, the measurement engineer needs to measure at least 4 point positions and can obtain the shield tail clearance through analysis and calculation, so that whether the shield tail clearance is within an allowable range can be determined, but the process is long in time consumption and seriously affects the construction progress.
In view of the above, the present inventors have developed a system for measuring the gap between the tail and the tail of a shield machine, so as to overcome the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of large error, potential safety hazard, long time consumption and the like of a shield tail clearance measurement mode of a shield tail clearance in the prior art, and provides a shield tail clearance measurement system of a shield machine.
The utility model solves the technical problems through the following technical scheme:
a shield tail clearance measuring system of a shield machine is characterized by comprising at least one infrared distance meter and an industrial control screen, wherein the infrared distance meter is connected with the industrial control screen through a communication line, and signals measured by the infrared distance meter are transmitted into the industrial control screen through the communication line;
the infrared distance measuring instrument is installed on the shield assembling machine ring plate, and the top of the infrared distance measuring instrument is consistent with the height of the shield assembling machine ring plate.
According to one embodiment of the utility model, the infrared distance meter comprises a laser emission window, an information receiving window and an internal timer, wherein the laser emission window and the information receiving window are respectively connected with the internal timer, and the internal timer is used for calculating the time from emission to reception of the laser beam.
According to one embodiment of the utility model, a photoelectric element is arranged in the information receiving window and used for receiving the laser beam reflected by the duct piece in the shield assembling machine.
According to one embodiment of the utility model, at least one mounting piece is fixed on the side wall of the shield assembling machine annular plate, and the infrared distance meter is fixed on the mounting piece.
According to one embodiment of the utility model, the mounting piece is an angle iron which is vertically welded on the shield tunneling erector ring plate.
According to one embodiment of the utility model, the infrared distance meter is fixed vertically on the angle bar.
According to one embodiment of the utility model, the distance from the top of the infrared distance meter to each ring of pipe pieces is S1, the thickness of the pipe pieces is S2, the distance from the ring plates of the shield assembling machine to the inner wall of the shield tail is S3, and the gap between the shield tail of the shield assembling machine is S, wherein S is S3- (S1+ S2).
According to one embodiment of the utility model, four infrared distance meters are uniformly arranged on the shield assembling machine annular plate.
According to one embodiment of the utility model, the infrared distance meters are respectively arranged in four directions of the upper direction, the lower direction, the left direction and the right direction of the shield assembling ring plate.
According to one embodiment of the utility model, induction operation software is installed in the industrial control screen.
The positive progress effects of the utility model are as follows:
the shield tail clearance measuring system of the shield tunneling machine has the following advantages:
the method comprises the steps that firstly, data measured by the laser range finders at all positions are displayed through calculation of an industrial personal computer, real-time measurement of shield tail gaps is achieved, and operating personnel of the shield machine can judge the propelling attitude of the shield machine in the current state more clearly;
secondly, the interference of factors such as the technology and the quality of a measuring person is avoided, and the measuring error is further reduced;
time and labor are saved, manual measurement is not needed, and potential safety hazards such as climbing in the manual measurement process are avoided;
fourthly, the measuring time is reduced, and the construction progress is improved;
fifthly, the installation wiring is simple and convenient, the cost is low, and the safety and the reliability are realized.
Drawings
The above and other features, properties and advantages of the present invention will become more apparent from the following description of the embodiments with reference to the accompanying drawings in which like reference numerals denote like features throughout the several views, wherein:
fig. 1 is a schematic structural diagram of a shield tail clearance measuring system of a shield tunneling machine according to the present invention.
Fig. 2 is a schematic diagram of a shield tail clearance measurement system of the shield tunneling machine of the present invention.
Fig. 3 is a schematic view of an installation of an infrared distance meter in the shield tail gap measuring system of the shield tunneling machine of the present invention.
Fig. 4 is a schematic diagram of mounting points of an infrared distance meter in the shield tail clearance measuring system of the shield tunneling machine of the utility model.
[ reference numerals ]
Infrared distance measuring instrument 10
Shield erector ring plate 40
Duct piece 50
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below.
Embodiments of the present invention will now be described in detail with reference to the accompanying drawings. Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.
Further, although the terms used in the present invention are selected from publicly known and used terms, some of the terms mentioned in the description of the present invention may be selected by the applicant at his or her discretion, the detailed meanings of which are described in relevant parts of the description herein.
Furthermore, it is required that the present invention is understood, not simply by the actual terms used but by the meaning of each term lying within.
Fig. 1 is a schematic structural diagram of a shield tail clearance measuring system of a shield tunneling machine according to the present invention. Fig. 2 is a schematic diagram of a shield tail clearance measurement system of the shield tunneling machine of the present invention. Fig. 3 is a schematic view of an installation of an infrared distance meter in the shield tail gap measuring system of the shield tunneling machine of the present invention. Fig. 4 is a schematic diagram of mounting points of an infrared distance meter in the shield tail clearance measuring system of the shield tunneling machine of the utility model.
As shown in fig. 1 to 4, the utility model discloses a shield tail clearance measuring system of a shield machine, which comprises at least one infrared distance meter 10 and an industrial control screen 20. Wherein, infrared distancer 10 is connected with industrial control screen 20 through communication line 30, and the signal that infrared distancer 10 surveyed is transmitted to in industrial control screen 20 through communication line 30. The infrared distance measuring instrument 10 is installed on the shield tunneling assembly machine ring plate 40, and the top of the infrared distance measuring instrument 10 is identical to the shield tunneling assembly machine ring plate 40 in height.
Here, the industrial control screen 20 is pre-installed with sensing operation (Sensor operator) software, and the industrial control screen 20 is installed in the main control room.
Preferably, the infrared distance meter 10 includes a laser emission window 11, an information reception window 12, and an internal timer for counting the time from emission to reception of the laser beam, to which the laser emission window 11 and the information reception window 12 are respectively connected. A photoelectric element is provided in the information receiving window 12 for receiving the laser beam reflected by the segment 50 in the shield assembling machine.
Further, at least one mount is fixed to a side wall of the shield tunneling erector ring plate 40, and the infrared distance meter 10 is fixed to the mount. The mounting piece is preferably an angle iron 60, and the angle iron 60 is vertically welded on the ring plate 40 of the shield assembling machine. The infrared distance meter 10 is vertically fixed to the angle bar 60.
As shown in fig. 2, the distance from the top of the infrared distance meter 10 to each ring of pipe pieces 50 is S1, the thickness of the pipe pieces 50 is S2, the distance from the ring plate 40 of the shield erector to the inner wall of the shield tail 70 is S3, and the shield tail gap of the shield erector is S3- (S1+ S2).
For example, preferably, four infrared distance meters 10 may be uniformly disposed on the shield assembling machine ring plate 40, and the infrared distance meters 10 are respectively arranged in four directions of the shield assembling machine ring plate 40, i.e., up, down, left, and right directions.
According to the structural description, the specific working process of the shield tail clearance measuring system of the shield tunneling machine is as follows: first, the infrared distance meter 10 (for example, an infrared laser distance meter may be preferable) is installed on the shield tunneling erection machine ring plate 40, and the top of the infrared distance meter 10 coincides with the height of the shield tunneling erection machine ring plate 40.
During the advancement, the infrared distance meter 10 measures the distance S1 from its tip to each ring of segments 50, the thickness of the segments 50 being S2. As shown in fig. 2, the distance S3 from the ring plate 40 of the shield assembling machine to the inner wall of the shield tail 70 is known as the shield tail clearance distance S: S-S3- (S1+ S2).
The principle of the infrared distance meter 10 is as follows: an instrument for accurately measuring the distance to a target by using a laser. In the working state, a thin laser beam (having no influence on the human body) is emitted from the infrared distance measuring instrument 10 to the shield tail 70. At the same time, the internal timer starts timing, and then receives the laser beam reflected by the duct piece 50 through the photoelectric element. When the photoelectric element receives the reflected laser beam, the internal timer stops timing, and the time from the emission to the reception of the laser beam is calculated. And finally multiplying the propagation speed of the emitted laser beam in the air to calculate the distance from the distance meter to the target.
The installation steps and the method of the shield tail clearance measuring system of the shield tunneling machine are as follows: the angle bar 60 is vertically welded and installed on the side wall of the ring plate 40 of the shield assembling machine, then the infrared distance meter 10 is vertically fixed on the angle bar 60, and the infrared distance meter 10 is adjusted to make the top of the infrared distance meter be the same as the height of the ring plate (as shown in fig. 3). The shield assembling ring plate 40 is provided with 4 infrared distance measuring instruments 10 on the upper, lower, left and right sides, the installation position is shown in fig. 4, and particularly, when the shield assembling ring plate is installed, attention needs to be paid to the fact that objects cannot block the upper parts of the distance measuring instruments.
Finally, real-time measurement data S1 is displayed by sensing operation (Sensor operator) software pre-installed on the control room industrial control screen 20, that is, the value of the shield tail clearance S is obtained by calculating the difference between the fixed value (S3-S2) and the real-time value S1.
The shield tail clearance measuring system of the shield tunneling machine is applied to the field of measurement of subway tunnel shield tunneling machines, adopts an infrared distance meter, collects relevant feedback laser beam signals through the emission and the reception of laser beams, and calculates by an algorithm written in SensorOpera software in advance, so that the calculated shield tail clearance is visually displayed on an industrial control screen.
The shield tail clearance measuring system of the shield machine is simple in structure and convenient to maintain, and can enable the measuring accuracy to be higher and the cost to be low by adopting laser measurement. The shield tail clearance obtained by measurement can be visually displayed on an industrial control screen, so that a shield machine driver can conveniently check shield tail clearance data in real time. Meanwhile, the time can be effectively saved, and the construction efficiency is greatly improved.
In summary, the system for measuring the gap between the shield tail and the shield machine of the utility model has the following advantages:
the method comprises the steps that firstly, data measured by the laser range finders at all positions are displayed through calculation of an industrial personal computer, real-time measurement of shield tail gaps is achieved, and operating personnel of the shield machine can judge the propelling attitude of the shield machine in the current state more clearly;
secondly, the interference of factors such as the technology and the quality of a measuring person is avoided, and the measuring error is further reduced;
time and labor are saved, manual measurement is not needed, and potential safety hazards such as climbing in the manual measurement process are avoided;
fourthly, the measuring time is reduced, and the construction progress is improved;
fifthly, the installation wiring is simple and convenient, the cost is low, and the safety and the reliability are realized.
While specific embodiments of the utility model have been described above, it will be appreciated by those skilled in the art that these are by way of example only, and that the scope of the utility model is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the utility model, and these changes and modifications are within the scope of the utility model.
Claims (10)
1. A shield tail clearance measuring system of a shield machine is characterized by comprising at least one infrared distance meter and an industrial control screen, wherein the infrared distance meter is connected with the industrial control screen through a communication line, and signals measured by the infrared distance meter are transmitted into the industrial control screen through the communication line;
the infrared distance measuring instrument is installed on the shield assembling machine ring plate, and the top of the infrared distance measuring instrument is consistent with the height of the shield assembling machine ring plate.
2. The shield tail clearance measuring system of the shield tunneling machine of claim 1, wherein the infrared distance measuring instrument comprises a laser emission window, an information receiving window and an internal timer, the laser emission window and the information receiving window are respectively connected with the internal timer, and the internal timer is used for calculating the time from emission to reception of the laser beam.
3. The system of claim 2, wherein the information receiving window is provided with a photoelectric element for receiving the laser beam reflected by the segments in the shield assembling machine.
4. The system of claim 1, wherein at least one mounting member is fixed to a side wall of the shield assembling machine annular plate, and the infrared distance meter is fixed to the mounting member.
5. The shield tail clearance measuring system of the shield tunneling machine of claim 4, wherein the mounting piece is an angle iron that is welded perpendicularly to the shield assembling machine ring plate.
6. The shield tail clearance measuring system of the shield tunneling machine of claim 5, wherein the infrared distance measuring device is vertically fixed to the angle bar.
7. The shield tail clearance measuring system of the shield tunneling machine of claim 3, wherein the distance from the top of the infrared distance measuring instrument to each ring of pipe pieces is S1, the thickness of the pipe pieces is S2, the distance from the ring plates of the shield tunneling machine to the inner wall of the shield tail is S3, and the shield tail clearance of the shield tunneling machine is S, wherein S is S3- (S1+ S2).
8. The shield tail clearance measuring system of the shield tunneling machine of claim 1, wherein four infrared distance measuring instruments are uniformly arranged on the ring plate of the shield tunneling machine.
9. The shield tail clearance measuring system of the shield tunneling machine of claim 8, wherein the infrared distance measuring instruments are respectively arranged in four directions of the shield assembling ring plate, namely, up, down, left and right.
10. The shield tail clearance measuring system of the shield tunneling machine of any one of claims 1-9, wherein induction operation software is installed in the industrial control screen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122203998.3U CN216115888U (en) | 2021-09-13 | 2021-09-13 | Shield tail clearance measuring system of shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122203998.3U CN216115888U (en) | 2021-09-13 | 2021-09-13 | Shield tail clearance measuring system of shield machine |
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| CN216115888U true CN216115888U (en) | 2022-03-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117075125A (en) * | 2023-07-31 | 2023-11-17 | 北京工业大学 | Method for monitoring spatial attitude of model test shield tunneling machine based on laser range finder |
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2021
- 2021-09-13 CN CN202122203998.3U patent/CN216115888U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117075125A (en) * | 2023-07-31 | 2023-11-17 | 北京工业大学 | Method for monitoring spatial attitude of model test shield tunneling machine based on laser range finder |
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