CN112943263B - Pipe jacking machine and pipe joint interval measuring device thereof - Google Patents
Pipe jacking machine and pipe joint interval measuring device thereof Download PDFInfo
- Publication number
- CN112943263B CN112943263B CN202110182656.XA CN202110182656A CN112943263B CN 112943263 B CN112943263 B CN 112943263B CN 202110182656 A CN202110182656 A CN 202110182656A CN 112943263 B CN112943263 B CN 112943263B
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- Prior art keywords
- measuring device
- pin shaft
- pipe joint
- sleeve
- distance
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- 239000003921 oil Substances 0.000 claims description 21
- 239000010687 lubricating oil Substances 0.000 claims description 16
- 238000007789 sealing Methods 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000004576 sand Substances 0.000 abstract description 4
- 238000001125 extrusion Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 239000010720 hydraulic oil Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000005641 tunneling Effects 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/003—Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B21/00—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant
- G01B21/16—Measuring arrangements or details thereof, where the measuring technique is not covered by the other groups of this subclass, unspecified or not relevant for measuring distance of clearance between spaced objects
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses a push bench and a pipe joint interval measuring device thereof, wherein the pipe joint interval measuring device comprises a sleeve fixed on a shield body, a pin shaft arranged in the sleeve and a power part for driving the pin shaft to extend out of or retract back into the sleeve; the power component is provided with a stroke sensor for detecting the extending distance of the pin shaft. The pipe joint distance measuring device provided by the invention can measure and calculate the distance between two adjacent pipe joints according to the moving distance of the pin shaft, and adjust the pose of the shield body to ensure that the distance between two adjacent pipe joints meets the requirement; the extrusion damage or sand leakage phenomenon caused by the fact that the distance between two adjacent pipe joints does not meet the requirement can be effectively avoided.
Description
Technical Field
The invention relates to the technical field of pipe jacking machine construction, in particular to a pipe joint spacing measuring device. In addition, the invention also relates to a push bench comprising the pipe joint spacing measuring device.
Background
When the adjacent tunnel pipe jacking machines are tunneling forwards, a certain safety distance needs to exist between pipe joints; too small a distance may extrude the existing pipe joint and damage the structure; the distance is too far away, the condition of sand leakage is generated during the disassembly and assembly of the temporary steel structure, and certain influence is caused on the safety and progress of shield construction.
In summary, how to control the distance between adjacent pipe sections is a problem to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a pipe joint distance measuring device, which can measure the distance between two adjacent pipe joints by moving a pin shaft during use, so that the distance between two adjacent pipe joints is kept within a safe distance.
Another object of the present invention is to provide a pipe jacking machine comprising the above pipe joint spacing measuring device.
In order to achieve the above purpose, the invention provides the following technical scheme:
a pipe joint distance measuring device comprises a sleeve fixed on a shield body, a pin shaft arranged in the sleeve and a power part driving the pin shaft to extend out of or retract into the sleeve;
the power component is provided with a stroke sensor for detecting the extending distance of the pin shaft.
Preferably, the pin shaft structure further comprises a lubricating oil path which is arranged in the sleeve and provides lubricating oil for the movement of the pin shaft.
Preferably, the lubricating oil path comprises a first oil path section arranged in the chute and a second oil path section arranged in the pin shaft, one end of the second oil path section is communicated with the first oil path section, and the other end of the second oil path section is arranged on the end surface of the pin shaft facing outwards;
the spout set up in the periphery lateral wall of round pin axle with between telescopic inside wall.
Preferably, a tapered pin head is arranged at one end of the pin shaft facing to the outer side.
Preferably, an oil outlet of the lubricating oil path is formed in the center of the end face, facing the outer side, of the pin head.
Preferably, both ends of the length direction of the sliding groove are provided with at least one sealing ring.
Preferably, the pin shaft is provided with an annular groove for mounting the sealing ring.
Preferably, the power part is a hydraulic oil cylinder, and the hydraulic oil cylinder is mounted on the sleeve.
A push bench comprises a shield body and at least one pipe joint interval measuring device, wherein the shield body is provided with a telescopic opening used for installing the pipe joint interval measuring device, so that a pin shaft extends out of the shield body.
Preferably, the number of the pipe joint interval measuring devices is at least two, and the pipe joint interval measuring devices are uniformly distributed on the shield body.
When the device for measuring the pipe joint distance provided by the invention is used, the power component can push the pin shaft to move forwards and extend out of the sleeve, when the end part of the pin shaft touches the existing pipe joint, the travel sensor in the power component can detect the moving distance of the pin shaft, so that the distance between two adjacent pipe joints is measured, and the posture of the shield body is regulated and controlled according to the actual safe distance, so that the distance between two adjacent pipe joints is maintained in a proper range.
Compared with the prior art, the pipe joint distance measuring device provided by the invention can acquire the moving distance of the pin shaft, provide data for acquiring the distance between two adjacent pipe joints, and adjust the pose of the shield body according to the distance between two adjacent pipe joints, so that the distance between two adjacent pipe joints meets the requirement; the phenomenon of extrusion damage or sand leakage caused by the fact that the distance between two adjacent pipe joints does not meet the requirement is effectively avoided.
In addition, the invention also provides a push bench comprising the pipe joint spacing measuring device.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a schematic structural view of a pin shaft of a pipe joint spacing measuring device provided by the present invention in an extended state;
FIG. 2 is a schematic structural view of a pin shaft of the pipe joint spacing measuring device provided by the present invention in a retracted state;
fig. 3 is a schematic structural view of the pipe joint distance measuring device installed on the shield body.
In fig. 1 to 3:
1 is the existing pipe joint, 2 is the pin head, 3 is the sleeve, 4 is the lubricated oil circuit, 5 is the round pin axle, 6 is the hydraulic cylinder, 7 is the sealing washer, 8 is the pipe joint interval measuring device, 9 is the shield body.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. 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 core of the invention is to provide a pipe joint spacing measuring device, and in the using process, the distance between two adjacent pipe joints can be measured through the movement of a pin shaft, so that the distance between the two adjacent pipe joints is kept within a safe distance.
The other core of the invention is to provide a push bench comprising the pipe joint spacing measuring device.
Referring to fig. 1 to 3, fig. 1 is a schematic structural view illustrating a pin of a pipe joint spacing measuring device according to the present invention in an extended state; FIG. 2 is a schematic structural view of a pin shaft of the pipe joint spacing measuring device provided by the present invention in a retracted state; fig. 3 is a schematic structural view of the pipe joint distance measuring device installed on the shield body.
The specific embodiment provides a pipe joint distance measuring device 8, which comprises a sleeve 3 fixed on a shield body 9, a pin shaft 5 arranged in the sleeve 3 and a power part for driving the pin shaft 5 to extend out of or retract into the sleeve 3;
the power unit is provided with a stroke sensor for detecting the extension distance of the pin 5.
As shown in fig. 1-3, the sleeve 3 is mounted on the shield 9, and the inner hole of the sleeve 3 is matched with the external dimension of the pin 5 to limit the extending and retracting direction of the pin 5.
In the process of using the pipe joint spacing measuring device 8 provided by the embodiment, the power component can push the pin 5 to move forward and extend out of the sleeve 3, when the end of the pin 5 touches the existing pipe joint 1, the travel sensor in the power component can detect the moving distance of the pin 5, so that the distance between two adjacent pipe joints is measured, and the posture of the shield body 9 is regulated and controlled according to the actual safe distance, so that the distance between two adjacent pipe joints is maintained in a proper range.
Compared with the prior art, the pipe joint distance measuring device 8 provided by the embodiment can acquire the moving distance of the pin shaft 5, provide data for acquiring the distance between two adjacent pipe joints, and adjust the pose of the shield body 9 according to the distance between two adjacent pipe joints, so that the distance between two adjacent pipe joints meets the requirement; the phenomenon of extrusion damage or sand leakage caused by the fact that the distance between two adjacent pipe joints does not meet the requirement is effectively avoided.
On the basis of the above embodiment, a lubricating oil path 4 may be further included, which is provided in the sleeve 3 and supplies lubricating oil for the movement of the pin 5.
As shown in fig. 1 and fig. 2, the lubricating oil path 4 may include a first oil path section disposed in the chute and a second oil path section disposed inside the pin 5, one end of the second oil path section is communicated with the first oil path section, and the other end is disposed on an end surface of the pin 5 facing outward;
the spout sets up between the periphery lateral wall of round pin axle 5 and the inside wall of sleeve 3.
Preferably, the sliding groove may be formed in the inner wall of the sleeve 3, and the stroke distance of the first oil path section satisfies the telescopic distance of the pin 5 in the telescopic process of the pin 5.
One end of the pin shaft 5 facing to the outside is provided with a tapered pin shaft head 2, and in the telescopic process, the tapered pin shaft head 2 can effectively reduce friction between the pin shaft 5 and the inner wall of the sleeve 3, so that the phenomenon of jamming is avoided.
Preferably, the oil outlet of the lubricating oil path 4 is arranged at the center of the end surface of the pin head 2 facing to the outer side.
In the use process, when the pin shaft 5 stretches out or retracts under the drive of the hydraulic oil cylinder 6, lubricating oil in the lubricating oil path 4 is sprayed out from an oil outlet on the end surface of the pin shaft head 2, the friction force between the pin shaft 5 and the inner wall of the sleeve 3 is reduced, the lubricating effect is achieved, and after the pin shaft head 2 stretches out of the sleeve 3, the lubricating oil can be sprayed out to wash impurities on the pin shaft head 2.
In order to avoid the lubricating oil from entering the pin shaft 5, at least one sealing ring 7 can be arranged at both ends of the sliding groove in the length direction.
Can set up the annular groove that is used for installing sealing washer 7 at round pin axle 5, also can set up the annular groove in 3 inner walls of sleeve, the thickness of sealing washer 7 is greater than the degree of depth of annular groove, specifically confirms according to actual conditions, does not do here and gives unnecessary details.
On the basis of the above embodiment, the power part may be provided as a hydraulic cylinder 6, and the hydraulic cylinder 6 is mounted at the end of the sleeve 3 facing away from the shield body 9. Of course, the power component may also be other structures meeting the requirement, and will not be described herein.
In addition to the pipe joint interval measuring device 8, the invention also provides a pipe jacking machine comprising a shield body 9 and at least one pipe joint interval measuring device 8 disclosed in the above embodiment, wherein the shield body 9 is provided with a telescopic port for mounting the pipe joint interval measuring device 8, so that the pin shaft 5 extends out of the shield body 9; the structure of other parts of the push bench refers to the prior art, and is not described herein again.
It should be noted that, as shown in fig. 1, an open end of the sleeve 3 is disposed toward the shield body 9 and corresponds to a telescopic opening of the shield body 9, the sleeve 3 is fixedly mounted on the shield body 9, the hydraulic cylinder 6 is mounted on a side of the sleeve 3 away from the shield body 9, the hydraulic cylinder 6 is connected to the pin 5 so as to drive the pin 5 to move in the sleeve 3 in a telescopic manner, a stroke sensor is disposed in the hydraulic cylinder 6, when the pin head 2 contacts the existing pipe joint 1 and the hydraulic cylinder 6 drives the pin 5 to further extend, the pressure in the hydraulic cylinder 6 is increased, the stroke sensor detects the extension distance of the pin 5 and transmits the extension distance to a corresponding control system, and the control system can calculate the distance between two adjacent pipe joints and adjust the pose of the shield body 9.
Preferably, the number of the pipe joint spacing measuring devices 8 is at least two, and the pipe joint spacing measuring devices 8 are uniformly distributed on the shield body 9.
When the number of the pipe joint interval measuring devices 8 is at least two, the installation angle between the existing pipe joint 1 and the pipe joint to be installed can be adjusted according to the difference of the extending strokes of the at least two pin shafts 5 contacting the existing pipe joint 1 when the number of the different pipe joint interval measuring devices 8 is at least two, and after the installation angle is obtained, the installation pose of the shield body 9 can be adjusted, so that the installation distance and the installation angle between two adjacent pipe joints meet the requirements.
It should be noted that the first and second oil sections mentioned in the present document are only for distinguishing the difference of the positions and are not sequentially distinguished.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. Any combination of all embodiments provided by the present invention is within the scope of the present invention, and will not be described herein.
The pipe pushing jack and the pipe joint spacing measuring device thereof provided by the invention are described in detail above. The principles and embodiments of the present invention have been described herein using specific examples, which are presented only to assist in understanding the method and its core concepts of the present invention. It should be noted that, for those skilled in the art, it is possible to make various improvements and modifications to the present invention without departing from the principle of the present invention, and those improvements and modifications also fall within the scope of the claims of the present invention.
Claims (8)
1. The pipe joint distance measuring device is characterized by comprising a sleeve (3) fixed on a shield body (9), a pin shaft (5) arranged in the sleeve (3) and a power part for driving the pin shaft (5) to extend out or retract into the sleeve (3);
the power component is provided with a stroke sensor for detecting the extending distance of the pin shaft (5);
the lubricating oil way (4) is arranged in the sleeve (3) and provides lubricating oil for the movement of the pin shaft (5);
the lubricating oil path (4) comprises a first oil path section arranged in the sliding groove and a second oil path section arranged in the pin shaft (5), one end of the second oil path section is communicated with the first oil path section, and the other end of the second oil path section is arranged on the end surface of the pin shaft (5) facing outwards;
the sliding groove is arranged between the peripheral side wall of the pin shaft (5) and the inner side wall of the sleeve (3).
2. A pipe joint spacing measuring device according to claim 1, wherein the pin (5) is provided with a tapered pin head (2) at its outward facing end.
3. The pipe joint spacing measuring device according to claim 2, wherein an oil outlet of the lubricating oil path (4) is arranged at a central position of an outward-facing end surface of the pintle head (2).
4. A pipe joint spacing measuring device according to claim 1, wherein at least one sealing ring (7) is provided at both ends of the chute in the length direction.
5. A tube section spacing measuring device according to claim 4, characterized in that said pin (5) is provided with an annular groove for mounting said sealing ring (7).
6. A pipe-section spacing measuring device according to any of claims 1-5, characterized in that said power member is a hydraulic ram (6) and said hydraulic ram (6) is mounted to said sleeve (3).
7. Push bench, characterized in that it comprises a shield body (9) and at least one tube section distance measuring device (8) according to any of claims 1-6, the shield body (9) being provided with a telescopic opening for mounting the tube section distance measuring device (8) so that the pin (5) extends out of the shield body (9).
8. Push bench according to claim 7, characterized in that the number of the tube-pitch measuring devices (8) is at least two, and that the tube-pitch measuring devices (8) are evenly distributed over the shield (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110182656.XA CN112943263B (en) | 2021-02-08 | 2021-02-08 | Pipe jacking machine and pipe joint interval measuring device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110182656.XA CN112943263B (en) | 2021-02-08 | 2021-02-08 | Pipe jacking machine and pipe joint interval measuring device thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112943263A CN112943263A (en) | 2021-06-11 |
| CN112943263B true CN112943263B (en) | 2022-10-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110182656.XA Active CN112943263B (en) | 2021-02-08 | 2021-02-08 | Pipe jacking machine and pipe joint interval measuring device thereof |
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| Country | Link |
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| CN (1) | CN112943263B (en) |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3168335B2 (en) * | 1997-10-14 | 2001-05-21 | 南野建設株式会社 | Pipe body construction method |
| JP2001329785A (en) * | 2000-05-24 | 2001-11-30 | Nanno Construction Co Ltd | Pipe body advancing device |
| JP4096090B2 (en) * | 2002-09-19 | 2008-06-04 | 株式会社栗本鐵工所 | Pipe joint shrinkage allowance measuring device |
| CN101280847A (en) * | 2007-12-24 | 2008-10-08 | 沈阳重型机械集团有限责任公司 | Main bearing multi-layer sealing structure of complete section tunnel boring machine |
| CN201535666U (en) * | 2009-12-11 | 2010-07-28 | 北京市市政工程研究院 | Automatic measuring device for pose of machine head of tube push bench |
| CN103322989A (en) * | 2013-06-06 | 2013-09-25 | 上海米度测量技术有限公司 | Measuring device and method of dynamic real-time measurement of position and posture of pipe pushing jack |
| CN204007587U (en) * | 2014-06-05 | 2014-12-10 | 中铁上海工程局集团有限公司 | A kind of automatic measurement guidance system about jacking construction |
| CN108119156A (en) * | 2016-11-28 | 2018-06-05 | 魏莹 | A kind of soil pressing balance pipe jacking machine electric control system based on PLC |
| CN109403995B (en) * | 2018-11-20 | 2024-02-13 | 中国铁建重工集团股份有限公司 | Deviation correcting device of push bench |
| CN111197486A (en) * | 2020-01-18 | 2020-05-26 | 广州鑫唐夏信息科技有限公司 | Push bench guiding method based on machine vision |
-
2021
- 2021-02-08 CN CN202110182656.XA patent/CN112943263B/en active Active
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| CN112943263A (en) | 2021-06-11 |
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