CN113236270A - Self-holding device for shield tunneling axis - Google Patents
Self-holding device for shield tunneling axis Download PDFInfo
- Publication number
- CN113236270A CN113236270A CN202110458887.9A CN202110458887A CN113236270A CN 113236270 A CN113236270 A CN 113236270A CN 202110458887 A CN202110458887 A CN 202110458887A CN 113236270 A CN113236270 A CN 113236270A
- Authority
- CN
- China
- Prior art keywords
- shield tunneling
- shield
- traction piece
- oil cylinder
- machine
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- 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.)
- Granted
Links
- 230000005641 tunneling Effects 0.000 title claims abstract description 108
- 238000012937 correction Methods 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 claims abstract description 9
- 239000002689 soil Substances 0.000 claims abstract description 9
- 229910000831 Steel Inorganic materials 0.000 claims description 24
- 239000010959 steel Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 abstract description 15
- 238000010276 construction Methods 0.000 abstract description 3
- 230000009467 reduction Effects 0.000 abstract description 2
- 230000008569 process Effects 0.000 description 10
- 230000005484 gravity Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/093—Control of the driving shield, e.g. of the hydraulic advancing cylinders
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D9/0621—Shield advancing devices
Abstract
The invention discloses a self-holding device for a shield tunneling axis, which comprises a power assembly fixed on a shield tunneling machine soil bin partition plate, a traction piece connected with a first trolley of a shield tunneling machine, and a bearing assembly arranged between the power assembly and the traction piece and used for connecting the power assembly and the traction piece; the power assembly is used for providing power for the traction piece and applying torque to the shield tunneling machine body, so that deviation correction of the tunneling axis of the shield tunneling machine is achieved, the shield tunneling machine trolley connected with the traction piece serves as a balance weight of the device, and the bearing assembly plays a bearing role between the power assembly and the traction piece. The invention has simple structure and convenient operation, can play the roles of axis control and deviation correction only by controlling the stroke of the oil cylinder, and has the advantages of high construction efficiency and reduction of dependence on manual experience compared with a method for correcting deviation by transferring data fed back by a plurality of systems.
Description
Technical Field
The invention relates to the technical field of shield equipment, in particular to a self-holding device for a shield tunneling axis.
Background
When the shield machine performs tunneling work in a tunnel, the shield machine tunnels forwards according to a preset track, but the self weight of the shield machine is large, and the contact force of the tunneling and excavating surface of the shield machine is large, so that the friction force of the shield machine body in the tunnel is also large, and in the tunneling process of the shield machine, the axis of the tunneling of the shield machine is easy to deviate from the preset track, and the axis control and the deviation correction processing of the shield machine are needed.
At present, the axis control and deviation rectification processing of the shield machine generally adopts the following methods: 1. the working personnel in the working platform control the stroke difference of the propulsion oil cylinder through the data collected by a plurality of sensors arranged on the shield tunneling machine, thereby realizing the correction of the tunneling axis of the shield tunneling machine. 2. And correcting the tunneling axis by controlling the chip mounter. 3. And (4) rectifying deviation of the pipe piece with poor axis posture by using a turning ring pipe piece.
The phenomenon that the axis deviates from the preset track is difficult to avoid in the tunneling process of the shield tunneling machine, the three conventional methods have the problems that the system structure is complex, the operation is inconvenient and a plurality of systems are required to be matched simultaneously, in the complex working condition of the shield tunnel, the stroke difference of the thrust oil cylinder needs to be continuously adjusted according to feedback data to realize axis deviation correction, the tunneling efficiency of the shield tunneling machine is influenced, in the actual operation process of the axis deviation correction, the deviation correction experience of operators is depended on relatively, and the problem that the expected judgment can not be carried out on the axis control in the later period in the actual operation process exists.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a self-holding device for a shield tunneling axis so as to solve the problems of complex and inconvenient operation, low deviation rectification efficiency and excessive dependence on manual experience in the deviation rectification process of the shield tunneling axis.
The purpose of the invention is realized by the following technical scheme:
a self-holding device for a shield tunneling axis comprises a power assembly fixed on a shield tunneling machine soil bin partition, a traction piece connected with a first trolley of a shield tunneling machine and a bearing assembly arranged between the power assembly and the traction piece and used for connecting the power assembly and the traction piece.
The power assembly is used for providing power for the traction piece and applying torque to the shield tunneling machine body, so that deviation correction of the tunneling axis of the shield tunneling machine is achieved, the shield tunneling machine trolley connected with the traction piece serves as a balance weight of the device, and the bearing assembly plays a bearing role between the power assembly and the traction piece.
The power assembly comprises an oil cylinder mounting seat and an oil cylinder, the oil cylinder mounting seat is fixed on a soil bin partition plate of the shield tunneling machine, and a cylinder body of the oil cylinder is fixed with the oil cylinder mounting seat.
The bearing assembly comprises a middle block, a guide rail and a support frame, the support frame is fixed on a steel structure of the shield tunneling machine, the guide rail is arranged on the upper surface of the support frame, and the middle block is fixedly connected with a sliding block of the guide rail.
The traction piece is a steel cable.
The steel cable is composed of a plurality of steel strands.
And a piston rod of the oil cylinder is fixedly connected with the first end of the middle block through a pin shaft.
One end of the traction piece is connected with the second end of the middle block, and the other end of the traction piece is connected with a first trolley of the shield tunneling machine.
And the cylinder body of the oil cylinder is fixedly connected with the oil cylinder mounting seat through a pin shaft.
The invention has the beneficial effects that:
1. the device has the advantages of simple structure and convenient and fast operation, does not influence the tunneling speed of the shield machine in the deviation rectifying process, and does not need to carry out deviation rectifying for a plurality of times continuously.
2. In the tunneling process of the shield tunneling machine, when the oil cylinder is in a tightened state, the steel cable is pulled, and a negative moment consistent with the tunneling direction of the shield tunneling machine can be generated on the shield tunneling machine body, so that partial gravity, friction force and contact force of an excavation surface of the shield tunneling machine are offset, and the tunneling axis is kept to be coincident with a preset track.
3. The invention can play the role of axis control and deviation correction only by controlling the stroke of the oil cylinder, and has the advantages of high construction efficiency and reduction of dependence on manual experience compared with a method for correcting deviation by transferring data fed back by a plurality of systems.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure, 1-an oil cylinder mounting seat, 2-an oil cylinder, 3-a middle block, 4-a steel cable, 5-a guide rail, 6-a support frame, 7-a soil bin partition plate and 8-a trolley.
Detailed Description
The technical solutions of the present invention are further described in detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in fig. 1, the self-holding device cylinder mounting base for the shield tunneling axis comprises a cylinder 1, a cylinder 2, an intermediate block 3, a steel cable 4, a guide rail 5 and a support frame 6.
A self-holding device for a shield tunneling axis comprises a power assembly fixed on a shield tunneling machine soil bin partition 7, a traction piece connected with a first trolley 8 of a shield tunneling machine and a bearing assembly arranged between the power assembly and the traction piece and used for connecting the power assembly and the traction piece.
The power assembly is used for providing power for the traction piece and applying torque to the shield tunneling machine body, so that deviation correction of the tunneling axis of the shield tunneling machine is achieved, the shield tunneling machine trolley connected with the traction piece serves as a balance weight of the device, and the bearing assembly plays a bearing role between the power assembly and the traction piece.
The power assembly comprises an oil cylinder mounting seat 1 and an oil cylinder 2, the oil cylinder mounting seat 1 is fixed on a soil bin partition plate 7 of the shield tunneling machine, and a cylinder body of the oil cylinder 2 is fixed with the oil cylinder mounting seat 1.
The bearing assembly comprises a middle block 3, a guide rail 5 and a support frame 6, the support frame 6 is fixed on a steel structure of the shield tunneling machine, the guide rail 5 is arranged on the upper surface of the support frame 6, and the middle block 3 is fixedly connected with a sliding block of the guide rail 5.
The traction member is a steel cable 4.
The steel cable 4 is composed of a plurality of steel strands.
And a piston rod of the oil cylinder 2 is fixedly connected with the first end of the middle block 3 through a pin shaft.
One end of the traction piece is connected with the second end of the middle block 3, and the other end of the traction piece is connected with a first trolley 8 of the shield tunneling machine.
And the cylinder body of the oil cylinder 2 is fixedly connected with the oil cylinder mounting seat 1 through a pin shaft.
The installation method of the self-holding device for the shield tunneling axis comprises the following steps:
firstly, an oil cylinder mounting seat 1 and a soil bin partition 7 of a shield machine are fixed by welding, the oil cylinder mounting seat 1 is a hinged support, a cylinder body of an oil cylinder 2 is connected with the oil cylinder mounting seat 1 through a pin shaft, a support frame 6 is fixed with a steel structure of the shield machine in a welding mode, a guide rail 5 is fixed on the upper surface of the support frame 6, the guide rail 5 is made of high-strength steel, and the left end and the right end of a middle block 3 are respectively provided with a through hole for fixing a piston end of the oil cylinder 2 and a steel cable 4.
The piston end of the oil cylinder 2 is fixedly connected with one end of the middle block 3 through a pin shaft and fixed through a fastening bolt, the bottom of the middle block 3 is fixed on a sliding block of the guide rail 5, so that the middle block can move on the guide rail 3 under the action of the oil cylinder 2, one end of the steel cable 4 is connected with a through hole at the other end of the middle block 3, and the other end of the steel cable 4 penetrates through the inside of the shield machine and is finally connected with a trolley 8 of the shield machine.
The following are specifically mentioned: the oil cylinder 2 is connected with a hydraulic pump in a rear matched system of the shield tunneling machine, and the tightening and releasing of the oil cylinder 2 are controlled by controlling the hydraulic pump, so that the self-maintaining of the tunneling axis of the shield tunneling machine is realized. All trolleys in the shield tunneling machine are used as balance weights of the whole axis self-holding device. The self-retaining device for the shield tunneling axis in the invention is generally a group, wherein one device is positioned at the left side of the shield tunneling machine, and the other device is positioned at the right side of the shield tunneling machine.
The working steps of the self-holding device for the shield tunneling axis are as follows:
the first step is as follows: before the shield machine tunnels, a hydraulic pump in a rear supporting system is controlled to tighten the oil cylinder 2, and all trolleys in the shield machine are used as balance weights of the whole axis self-holding device, so that after the oil cylinder 2 is tightened, the trolley is pulled by the steel cable 4 to exert an acting force on the shield machine body.
The second step is that: the shield machine starts to drive, the piston stroke of the oil cylinder 2 is controlled in the driving process of the shield machine, thereby further controlling the physical strength applied to the shield machine,
the third step: after the tunneling of the shield tunneling machine is finished, the hydraulic pump is controlled to release the piston of the oil cylinder 2, after the segments are spliced, the hydraulic pump is controlled again before the shield tunneling machine starts tunneling for the next time, the piston of the oil cylinder 2 is tightened, and the shield tunneling machine continues tunneling, so that the tunneling axis of the shield tunneling machine is kept coincident with the preset track.
In the second step, when the shield machine is tunneling, because the thrust cylinder of the shield machine pushes the shield machine to move forward, the self gravity, the friction force and the contact force of the excavation surface of the shield machine are suddenly increased, the piston of the cylinder 2 in the device needs to be controlled by the hydraulic pump to continuously tighten up, so that the cylinder 2 can stably apply a negative moment to the shield machine body, the thrust cylinder of the shield machine is better assisted to advance, and the tunneling axis of the shield machine is continuously corrected in the tunneling process of the shield machine.
The first embodiment is as follows:
when the tunneling preset track of the shield tunneling machine is a straight line, the axis self-holding devices arranged on the left side and the right side of the steel structure of the shield tunneling machine act simultaneously, before the tunneling of the shield tunneling machine, a hydraulic pump in a rear matched system is controlled, pistons of oil cylinders 2 on the left side and the right side are tightened, and all trolleys of the shield tunneling machine are tensioned by a steel cable 4, so that an acting force is applied to the shield tunneling machine body; and the shield machine starts to tunnel, and the pistons of the oil cylinders 2 on the left side and the right side are controlled to be continuously tightened, so that the tunneling axis of the shield machine is always kept in a straight line when the shield machine tunnels in a straight line, and the axis of the shield machine is corrected.
Example two:
when the tunneling preset track of the shield machine is a curve, if the tunneling axis of the shield machine deviates to the left from the preset track, the piston of the oil cylinder 2 on the left side of the shield machine is tightened up by controlling the hydraulic pump, and the piston of the oil cylinder 2 on the right side of the shield machine is released, so that a negative moment is obtained on the left side of the shield machine, and the tunneling axis of the shield machine is corrected to the left.
Example three:
when the tunneling preset track of the shield machine is a curve, if the tunneling axis of the shield machine deviates from the preset track to the right, the piston of the oil cylinder 2 on the right side of the shield machine is tightened up by controlling the hydraulic pump, and the piston of the oil cylinder 2 on the left side of the shield machine is released, so that a negative moment is obtained on the right side of the shield machine, and the tunneling axis of the shield machine is corrected to the right.
The device has the advantages of simple structure and convenient and fast operation, does not influence the tunneling speed of the shield machine in the deviation rectifying process, and does not need to carry out deviation rectifying for a plurality of times continuously. When the oil cylinder is in a tightened state, the steel cable is pulled, and a negative moment consistent with the tunneling direction of the shield tunneling machine can be generated on the shield tunneling machine body, so that partial gravity, friction and contact force of the tunneling surface of part of the shield tunneling machine are offset, and the tunneling axis is kept coincident with a preset track. In addition, the invention can play the role of axis control and deviation correction only by controlling the stroke of the oil cylinder, and compared with a method for correcting deviation by transferring data fed back by a plurality of systems, the invention has the advantages of high construction efficiency and reduced dependence on manual experience.
As described above, the present invention is not limited to the above-described preferred embodiments, and any person skilled in the art can make many modifications or changes to the equivalent embodiments by using the technical contents disclosed above without departing from the technical scope of the present invention, but any simple modification, equivalent change and modification made to the above-described embodiments according to the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.
Claims (8)
1. A self-sustaining device for shield tunneling axis, characterized in that: the device comprises a power assembly fixed on a shield machine soil bin partition plate (7), a traction piece connected with a first trolley (8) of the shield machine, and a bearing assembly arranged between the power assembly and the traction piece and used for connecting the power assembly and the traction piece;
the power assembly is used for providing power for the traction piece and applying torque to the shield tunneling machine body, so that deviation correction of the tunneling axis of the shield tunneling machine is achieved, the shield tunneling machine trolley connected with the traction piece serves as a balance weight of the device, and the bearing assembly plays a bearing role between the power assembly and the traction piece.
2. A self-retaining device for a shield tunneling axis according to claim 1, wherein: the power assembly comprises an oil cylinder mounting seat (1) and an oil cylinder (2), the oil cylinder mounting seat (1) is fixed on a soil bin partition plate (7) of the shield tunneling machine, and a cylinder body of the oil cylinder (2) is fixed with the oil cylinder mounting seat (1).
3. A self-retaining device for a shield tunneling axis according to claim 2, wherein: the bearing assembly comprises a middle block (3), a guide rail (5) and a support frame (6), the support frame (6) is fixed on a steel structure of the shield machine, the guide rail (5) is arranged on the upper surface of the support frame (6), and the middle block (3) is fixedly connected with a sliding block of the guide rail (5).
4. A self-retaining device for a shield tunneling axis according to claim 1, wherein: the traction piece is a steel cable (4).
5. A self-retaining arrangement for a shield tunneling axis according to claim 4, wherein: the steel cable (4) is composed of a plurality of steel strands.
6. A self-retaining device for a shield tunneling axis according to claim 3, wherein: and a piston rod of the oil cylinder (2) is fixedly connected with the first end of the middle block (3) through a pin shaft.
7. A self-retaining device for a shield tunneling axis according to claim 3, wherein: one end of the traction piece is connected with the second end of the middle block (3), and the other end of the traction piece is connected with a first trolley (8) of the shield tunneling machine.
8. A self-retaining device for a shield tunneling axis according to claim 2, wherein: the cylinder body of the oil cylinder (2) is fixedly connected with the oil cylinder mounting seat (1) through a pin shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110458887.9A CN113236270B (en) | 2021-04-27 | 2021-04-27 | Self-holding device for shield tunneling axis |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110458887.9A CN113236270B (en) | 2021-04-27 | 2021-04-27 | Self-holding device for shield tunneling axis |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113236270A true CN113236270A (en) | 2021-08-10 |
| CN113236270B CN113236270B (en) | 2024-05-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110458887.9A Active CN113236270B (en) | 2021-04-27 | 2021-04-27 | Self-holding device for shield tunneling axis |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0299952A1 (en) * | 1987-07-17 | 1989-01-18 | VOEST-ALPINE Bergtechnik Gesellschaft m.b.H | Process for driving on a tunnel and shield tunneling machine for carrying out the same |
| JP2005188125A (en) * | 2003-12-25 | 2005-07-14 | Taisei Corp | Posture controller and boring method of shield boring machine making use thereof |
| CN103032076A (en) * | 2012-12-08 | 2013-04-10 | 中铁十二局集团第二工程有限公司 | Method for correcting unconformable surface stratum shield tunneling construction |
| CN103821528A (en) * | 2014-03-12 | 2014-05-28 | 上海市机械施工集团有限公司 | Cutterhead system of rectangular shield tunneling machine and telescopic control method of cutterhead system |
| CN203769788U (en) * | 2014-01-14 | 2014-08-13 | 杭州杭锅通用设备有限公司 | Shield machine trolley traction device |
| CN108533279A (en) * | 2018-03-23 | 2018-09-14 | 北京交通大学 | A kind of model test control system carrying out shield attitude adjusting |
| CN108661653A (en) * | 2018-05-22 | 2018-10-16 | 中交二公局第三工程有限公司 | The method realized and quickly rectified a deviation is promoted by the way that manual operation shield machine is actively hinged |
| CN108708737A (en) * | 2018-04-26 | 2018-10-26 | 中铁隧道集团二处有限公司 | A kind of rectangular shield machine of controllable operation posture |
| CN110130906A (en) * | 2019-05-20 | 2019-08-16 | 中交天和机械设备制造有限公司 | A kind of shield machine can automatic deviation correction propulsion device |
| CN215170011U (en) * | 2021-04-27 | 2021-12-14 | 中铁工程服务有限公司 | Self-holding device for shield tunneling axis |
-
2021
- 2021-04-27 CN CN202110458887.9A patent/CN113236270B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0299952A1 (en) * | 1987-07-17 | 1989-01-18 | VOEST-ALPINE Bergtechnik Gesellschaft m.b.H | Process for driving on a tunnel and shield tunneling machine for carrying out the same |
| JP2005188125A (en) * | 2003-12-25 | 2005-07-14 | Taisei Corp | Posture controller and boring method of shield boring machine making use thereof |
| CN103032076A (en) * | 2012-12-08 | 2013-04-10 | 中铁十二局集团第二工程有限公司 | Method for correcting unconformable surface stratum shield tunneling construction |
| CN203769788U (en) * | 2014-01-14 | 2014-08-13 | 杭州杭锅通用设备有限公司 | Shield machine trolley traction device |
| CN103821528A (en) * | 2014-03-12 | 2014-05-28 | 上海市机械施工集团有限公司 | Cutterhead system of rectangular shield tunneling machine and telescopic control method of cutterhead system |
| CN108533279A (en) * | 2018-03-23 | 2018-09-14 | 北京交通大学 | A kind of model test control system carrying out shield attitude adjusting |
| CN108708737A (en) * | 2018-04-26 | 2018-10-26 | 中铁隧道集团二处有限公司 | A kind of rectangular shield machine of controllable operation posture |
| CN108661653A (en) * | 2018-05-22 | 2018-10-16 | 中交二公局第三工程有限公司 | The method realized and quickly rectified a deviation is promoted by the way that manual operation shield machine is actively hinged |
| CN110130906A (en) * | 2019-05-20 | 2019-08-16 | 中交天和机械设备制造有限公司 | A kind of shield machine can automatic deviation correction propulsion device |
| CN215170011U (en) * | 2021-04-27 | 2021-12-14 | 中铁工程服务有限公司 | Self-holding device for shield tunneling axis |
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| Publication number | Publication date |
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| CN113236270B (en) | 2024-05-03 |
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