CN108005693B - Rounding device and control system of tunnel excavator - Google Patents
Rounding device and control system of tunnel excavator Download PDFInfo
- Publication number
- CN108005693B CN108005693B CN201711366586.3A CN201711366586A CN108005693B CN 108005693 B CN108005693 B CN 108005693B CN 201711366586 A CN201711366586 A CN 201711366586A CN 108005693 B CN108005693 B CN 108005693B
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- valve
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- pushing elements
- arc
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- 230000002457 bidirectional effect Effects 0.000 claims description 23
- 230000008602 contraction Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 23
- 230000009471 action Effects 0.000 description 3
- 238000009412 basement excavation Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000010720 hydraulic oil Substances 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/40—Devices or apparatus specially adapted for handling or placing units of linings or supporting units for tunnels or galleries
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D11/00—Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling
- E21D11/04—Lining with building materials
- E21D11/08—Lining with building materials with preformed concrete slabs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B11/00—Servomotor systems without provision for follow-up action; Circuits therefor
- F15B11/16—Servomotor systems without provision for follow-up action; Circuits therefor with two or more servomotors
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Civil Engineering (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention provides a rounding device of a tunnel excavator, which comprises a support and two rails, wherein a horizontal pushing element is arranged on each rail, an upper pushing element and a lower pushing element are arranged at the pushing end of each horizontal pushing element, the two upper pushing elements are connected with a first arc-shaped plate, the two lower pushing elements are connected with a second arc-shaped plate, and the outer arc radiuses of the first arc-shaped plate and the second arc-shaped plate are correspondingly arranged with the inner diameter of a pipe sheet of the tunnel excavator. A rounding device of a tunnel excavator realizes the requirement of the roundness of the outer circle surface of a segment. The control system comprises an electromagnetic reversing valve and a multi-way valve, wherein the multi-way valve comprises three parallel three-position six-way reversing valves, one three-position six-way reversing valve is communicated with a horizontal pushing element, the second three-position six-way reversing valve is simultaneously communicated with two upper pushing elements, and the third three-position six-way reversing valve is simultaneously communicated with two lower pushing elements. The system is simple in design and convenient to operate, shortens the construction period and improves the construction efficiency.
Description
Technical Field
The invention belongs to the field of tunnel excavator equipment, and particularly relates to a rounding device and a control system of a tunnel excavator.
Background
In the existing underground industrial operation, the excavation of an underground tunnel is completed by a tunnel excavator, in the excavation work of the tunnel excavator, the pipe piece plays a key role, in order to meet the tunnel excavation requirement, the excircle of the pipe piece after assembly is required to meet certain roundness requirements, but in the pipe piece assembly process, misalignment and other misalignment phenomena often occur in the upper pipe piece and the lower pipe piece of the assembly machine, so that the whole circle is required in the assembly process, and the roundness requirement of the outer circumference of the pipe piece is ensured.
Disclosure of Invention
In view of the above, the invention aims to provide a rounding device and a control system of a tunnel excavator so as to meet the roundness requirement of a pipe sheet of the tunnel excavator.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
The utility model provides a tunnel excavator rounding device, which comprises a bracket, and two horizontal and parallel arrangement's track on this support, be equipped with a horizontal pushing element on each track, two horizontal pushing element propelling movement ends syntropy setting, every horizontal pushing element propelling movement end is equipped with a connecting block, every connecting block upper end is equipped with a pushing element, this connecting block bottom is equipped with pushing element down, be connected with the first arc of evagination between the pushing element's of two upper pushing elements, be connected with the second arc of evagination between the pushing element propelling movement under two, first arc and second arc just set up, first arc and second arc outer arc radius and tunnel excavator pipe internal diameter correspond the setting.
Further, the horizontal pushing element, the upper pushing element and the lower pushing element are respectively hydraulic cylinders.
Further, the bottom surface of the connecting block is provided with a roller which moves along the track.
Compared with the prior art, the rounding device of the tunnel excavator has the following advantages:
According to the rounding device of the tunnel excavator, under the combined action of the horizontal pushing element, the upper pushing element and the lower pushing element, the inner surface of the upper segment of the tunnel excavator is tightly pressed by the first arc-shaped plate arranged above, and the inner surface of the lower segment of the tunnel excavator is tightly pressed by the second arc-shaped plate arranged below, so that the requirement on the roundness of the outer circle surface of the segment is met, and the normal excavating work of the tunnel excavator is ensured.
The control system comprises an electromagnetic reversing valve and a multi-way valve, wherein the multi-way valve comprises three first three-position six-way reversing valves, a second three-position six-way reversing valve and a third three-position six-way reversing valve which are connected in parallel, the first three-position six-way reversing valve is communicated with a horizontal pushing element, the second three-position six-way reversing valve is simultaneously communicated with two upper pushing elements through a first bidirectional one-way valve, and the third three-position six-way reversing valve is simultaneously communicated with two lower pushing elements through a second bidirectional one-way valve.
Further, the first bidirectional check valve is communicated with oil inlets of the two upper pushing elements through the first quantitative distributor, and the second bidirectional check valve is communicated with oil inlets of the two lower pushing elements through the second quantitative distributor.
Further, high-pressure ball valves are respectively communicated between the oil inlets of the two upper pushing elements and between the oil inlets of the two lower pushing elements.
Further, a bidirectional overflow valve is respectively arranged between the first bidirectional check valve and the two upper pushing elements, between the second bidirectional check valve and the two lower pushing elements, and between the first three-position six-way reversing valve and the two horizontal pushing elements.
Further, the first bidirectional check valve and the second bidirectional check valve are respectively bidirectional hydraulic check valves.
Compared with the prior art, the control system provided by the invention has the following advantages:
according to the control system, hydraulic oil controls the horizontal pushing element, the upper pushing element and the lower pushing element to act through the multi-way valve, so that the first arc-shaped plate and the second arc-shaped plate are controlled to act, the circle finishing requirement on the outer circumferential surface of the assembled duct piece is met, the system is simple in design and convenient to operate, the circle finishing cost of the duct piece in the later operation process is saved, the construction period is shortened, and the construction efficiency is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute an undue limitation on the invention. In the drawings:
FIG. 1 is a front view of a rounding device of a tunnel boring machine according to an embodiment of the present invention;
FIG. 2 is a top view of a rounding device of a tunnel boring machine according to an embodiment of the present invention;
FIG. 3 is a left side view of a rounding device of a tunnel boring machine according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a control system according to an embodiment of the present invention.
Reference numerals illustrate:
1-a bracket; 2-track;
3-a horizontal pushing element; 4-up pushing element;
5-pushing down the element; 6-a first arc plate;
7-a second arc plate; 8-connecting blocks;
9-fixing blocks; 10-reversing valve;
11-a multi-way valve; 111-a first three-position six-way reversing valve;
112-a second three-position six-way reversing valve; 113-a third three-position six-way reversing valve;
12-a two-way overflow valve; 13-a first two-way check valve;
14-a second bidirectional one-way valve; 15-a high-pressure ball valve;
16-a first metering dispenser; 17-a second dosing dispenser.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the invention, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art in a specific case.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 1-3, a circle forming device of a tunnel excavator comprises a support 1 and two tracks 2 which are parallel and horizontally arranged on the support 1, wherein a horizontal pushing element 3 is arranged on each track 2, pushing ends of the two horizontal pushing elements 3 are arranged in the same direction, a connecting block 8 is arranged at each pushing end of each horizontal pushing element 3, rollers are arranged on the bottom surface of each connecting block 8, the horizontal pushing element 3 pushes the connecting blocks 8 to move along the tracks 2 through the rollers, each connecting block 8 is connected with a fixed block 9, an upper pushing element 4 is arranged at the upper end of each fixed block 9, a lower pushing element 5 is arranged at the bottom end of each connecting block 8, in the embodiment, the horizontal pushing elements 3, the upper pushing elements 4 and the lower pushing elements 5 are respectively hydraulic cylinders, convex first arc-shaped plates 6 are connected between pushing ends of the two upper pushing elements 4, convex second arc-shaped plates 7 are connected between pushing ends of the two lower pushing elements 5, the first arc-shaped plates 6 and the second arc-shaped plates 7 are arranged opposite, and the first arc-shaped plates 6 and the second arc-shaped plates 7 are arranged opposite to each other, and the radius of the first arc-shaped plates 6 and the second arc-shaped plates and the radius of the arc-shaped plates and the arc-shaped plates are arranged correspondingly.
When the device is applied, the first arc plate and the second arc plate are pushed to the pipe piece assembling machine through the two horizontal pushing elements 3, then the first arc plate 6 is tightly pressed on the inner surface of the assembled pipe piece through the two upper pushing elements 4, the pipe piece is subjected to position adjustment under the action of pressure, the phenomenon of dislocation is solved, the excircle flatness of the pipe piece is ensured, the roundness requirement is met, the same principle is adopted, the pipe piece position which is positioned below after the assembling machine is assembled is adjusted through the interaction of the lower pushing elements 5 and the second arc plate 7, the phenomenon of dislocation of the pipe piece is corrected, and the use requirement is met.
The control system applied to the rounding device of the tunnel excavator comprises an electromagnetic reversing valve 10 and a multi-way valve 11, wherein the multi-way valve 11 comprises three first three-position six-way reversing valves 111, a second three-position six-way reversing valve 112 and a third three-position six-way reversing valve 113 which are connected in parallel, the first three-position six-way reversing valve 111 is communicated with two horizontal pushing elements 3, namely oil inlets of the two horizontal pushing elements 3 are respectively communicated with a working oil port A of the first three-position six-way reversing valve 111, oil inlet control is realized, oil outlets of the two horizontal pushing elements 3 are respectively communicated with a working oil port B of the first three-position six-way reversing valve 111, oil return is realized, and therefore the expansion and the contraction of the pushing elements of the horizontal pushing elements 3 are controlled; the second three-position six-way reversing valve 112 is simultaneously communicated with the two upper pushing elements 4 through the first two-way one-way valve 13, namely oil inlets of the two upper pushing elements 4 are respectively communicated with a working oil port A of the second three-position six-way reversing valve 112 after passing through the first two-way one-way valve 13, oil outlets of the two upper pushing elements 4 are respectively communicated with a working oil port B of the second three-position six-way reversing valve 112 after passing through the first two-way one-way valve 13, and the third three-position six-way reversing valve 113 is simultaneously communicated with the two lower pushing elements 5 through the second two-way one-way valve 14; in this embodiment, to ensure that the two first bidirectional check valves 13 are communicated with the oil inlets of the two upper pushing elements 4 through the first metering distributor 16, the second bidirectional check valves 14 are communicated with the oil inlets of the two lower pushing elements 5 through the second metering distributor 17. The arrangement of the first two-way check valve 13 ensures the self-locking function of the upper push element 4, since the two-way check valve is locked in the oil path as a common structure, which is not described in detail here. Taking two upper pushing elements 4 as an illustration of the working principle, hydraulic oil enters a first two-way check valve 13 after passing through a second three-position six-way reversing valve 112, then enters oil inlets of the two upper pushing elements 4 at the same time after passing through a first quantitative distributor 16, and simultaneously controls the two upper pushing elements 4 to act so as to drive a first arc plate 6 to move upwards, ensure that the first arc plate 6 is tightly propped against a duct piece joint, operate the lower pushing elements to enable a second arc plate 7 to move downwards, ensure that the second arc plate 7 is tightly propped against the duct piece joint below, and then repeatedly adjust the second three-position six-way reversing valve 112 and the third three-position six-way reversing valve 113 to realize a duct piece rounding action, thereby meeting the duct piece position requirements.
In this embodiment, two between the oil inlet of last push component 4, two push component 5 oil inlets down communicate respectively and have high-pressure ball valve 15, when two flexible length of push component 4 are inconsistent on, when two push component 5 flexible length are inconsistent down, guarantee through opening high-pressure ball valve that two push component 4 advance oil pressure the same, two push component 5 advance oil pressure down the same, guarantee two and go up push component 4 expansion amount the same from this, two push component 5 expansion amount down the same, guarantee from this that first, second arc removal direction straightness, and then guarantee first, second arc surface and section of jurisdiction internal surface hugs closely the demand.
In this embodiment, in order to ensure that the working oil pressure is within a certain range, a bidirectional overflow valve 12 is respectively disposed between the first bidirectional check valve 13 and the two upper pushing elements 4, between the second bidirectional check valve 14 and the two lower pushing elements 5, and between the first three-position six-way reversing valve 111 and the two horizontal pushing elements 3.
The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (1)
1. The utility model provides a tunnel excavator rounding device which characterized in that: the device comprises a bracket (1) and two horizontal rails (2) which are arranged on the bracket (1) in parallel, wherein a horizontal pushing element (3) is arranged on each rail (2), pushing ends of the two horizontal pushing elements (3) are arranged in the same direction, a connecting block (8) is arranged at each pushing end of each horizontal pushing element (3), each connecting block (8) is connected with a fixed block (9), an upper pushing element (4) is arranged at the upper end of each fixed block (9), a lower pushing element (5) is arranged at the bottom end of each connecting block (8), a first outwards-protruding arc-shaped plate (6) is connected between the pushing ends of the two upper pushing elements (4), a second outwards-protruding arc-shaped plate (7) is connected between the pushing ends of the two lower pushing elements (5), the first arc-shaped plate (6) and the second arc-shaped plate (7) are arranged in opposite directions, and the outer arc radiuses of the first arc-shaped plate (6) and the second arc-shaped plate (7) are correspondingly arranged with the inner diameter of a tunnel excavator pipe;
the horizontal pushing element (3), the upper pushing element (4) and the lower pushing element (5) are respectively hydraulic cylinders;
the bottom surface of the connecting block (8) is provided with a roller which moves along the track (2), and the horizontal pushing element (3) pushes the connecting block (8) to move along the track (2) through the roller;
The control system of the rounding device of the tunnel excavator comprises an electromagnetic reversing valve (10) and a multi-way valve (11), wherein the multi-way valve (11) comprises three first three-position six-way reversing valves (111), a second three-position six-way reversing valve (112) and a third three-position six-way reversing valve (113) which are connected in parallel, the first three-position six-way reversing valve (111) is communicated with two horizontal pushing elements (3) at the same time, the two horizontal pushing elements (3) are controlled to act at the same time through the first three-position six-way reversing valve (111), the second three-position six-way reversing valve (112) is communicated with two upper pushing elements (4) at the same time through a first bidirectional one-way valve (13), and the third three-position six-way reversing valve (113) is communicated with two lower pushing elements (5) at the same time through a second bidirectional one-way valve (14);
The oil inlets of the two horizontal pushing elements (3) are respectively communicated with the working oil port A of the first three-position six-way reversing valve (111) to control oil inlet, the oil outlets of the two horizontal pushing elements (3) are respectively communicated with the working oil port B of the first three-position six-way reversing valve (111) to return oil, and the expansion and contraction of the pushing elements of the horizontal pushing elements (3) are controlled;
The first bidirectional check valve (13) is communicated with oil inlets of the two upper pushing elements (4) through a first quantitative distributor (16), and the second bidirectional check valve (14) is communicated with oil inlets of the two lower pushing elements (5) through a second quantitative distributor (17);
A high-pressure ball valve (15) is respectively communicated between the oil inlets of the two upper pushing elements (4) and the oil inlets of the two lower pushing elements (5);
A two-way overflow valve (12) is respectively arranged between the first two-way check valve (13) and the two upper pushing elements (4), between the second two-way check valve (14) and the two lower pushing elements (5), and between the first three-position six-way reversing valve (111) and the two horizontal pushing elements (3);
The first bidirectional check valve (13) and the second bidirectional check valve (14) are respectively bidirectional hydraulic check valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711366586.3A CN108005693B (en) | 2017-12-18 | 2017-12-18 | Rounding device and control system of tunnel excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711366586.3A CN108005693B (en) | 2017-12-18 | 2017-12-18 | Rounding device and control system of tunnel excavator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108005693A CN108005693A (en) | 2018-05-08 |
| CN108005693B true CN108005693B (en) | 2024-04-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711366586.3A Active CN108005693B (en) | 2017-12-18 | 2017-12-18 | Rounding device and control system of tunnel excavator |
Country Status (1)
| Country | Link |
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| CN (1) | CN108005693B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112814702B (en) * | 2021-01-06 | 2022-06-07 | 中国铁建重工集团股份有限公司 | Shield constructs machine and synchronous translation mechanism of whole circular ware of section of jurisdiction thereof |
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| CN105888688A (en) * | 2016-06-15 | 2016-08-24 | 中国铁建重工集团有限公司 | Tunnel segment shaping device for heading machine and heading machine |
| CN205977230U (en) * | 2016-06-15 | 2017-02-22 | 中国铁建重工集团有限公司 | A tunnel segment shaping device and entry driving machine for entry driving machine |
| CN107060797A (en) * | 2017-04-10 | 2017-08-18 | 浙江大学 | Hard rock mole horizontal attitude adjusts hydraulic system |
| CN207761683U (en) * | 2017-12-18 | 2018-08-24 | 辽宁三三工业有限公司 | A kind of tunnel excavator rounding device and control system |
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2017
- 2017-12-18 CN CN201711366586.3A patent/CN108005693B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101592033A (en) * | 2009-07-03 | 2009-12-02 | 北京工业大学 | Assembled plastic pipes assembly form and supporting method in the soil |
| CN104747207A (en) * | 2015-03-25 | 2015-07-01 | 中铁工程装备集团有限公司 | Mid-partition rectangular tunnel segmental lining and segment splicing method |
| CN105134246A (en) * | 2015-07-30 | 2015-12-09 | 上海市机械施工集团有限公司 | Rectangular shield tunnel lining-shaped rectification device and rectification method |
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| CN108005693A (en) | 2018-05-08 |
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