CN110656956B - Concrete-cast tunnel lining concave-convex gravel intelligent maintenance trolley - Google Patents
Concrete-cast tunnel lining concave-convex gravel intelligent maintenance trolley Download PDFInfo
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- CN110656956B CN110656956B CN201910864021.0A CN201910864021A CN110656956B CN 110656956 B CN110656956 B CN 110656956B CN 201910864021 A CN201910864021 A CN 201910864021A CN 110656956 B CN110656956 B CN 110656956B
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- gravel
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- E—FIXED CONSTRUCTIONS
- E21—EARTH 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
- E21D11/10—Lining with building materials with concrete cast in situ; Shuttering also lost shutterings, e.g. made of blocks, of metal plates or other equipment adapted therefor
Abstract
The invention discloses a concrete-cast tunnel lining concave-convex gravel intelligent maintenance trolley, which structurally comprises an inner adjusting plate and a lateral supporting protective plate, wherein a top separating plate is vertically welded on the upper surface of the inner adjusting plate and pushes the whole body inwards, the most front end of the inner adjusting plate is an end head inserting plate, if the inner adjusting plate touches convex gravel in the moving process, a bidirectional grinding wheel can be abutted by the gravel, the broken gravel is still driven by a grinding corner, when the grinding corner rotates to a certain position along a middle fixed point, the position of the whole body is controlled, the fixing force of a front convex ball on a sandwich core is controlled, when the gravel is clamped between conical tops, the sharp head effect of grinding the outside is implemented, the gravel can be ground better and abutted, so that the force of inwards pressing the supporting core is implemented, the whole body cannot be scratched by the gravel in the moving process, when the whole body is adjusted to move in accordance with the size of a tunnel, the end head of the protruding gravel and sand is collided to crush the gravel and sand, and the rear section of the gravel and sand is not scratched by the gravel and sand after moving in.
Description
Technical Field
The invention belongs to the field of tunnel construction, and particularly relates to an intelligent maintenance trolley for a concrete-cast tunnel lining with concave-convex gravel.
Background
When the end of the tunnel entrance needs to be maintained, the maintenance vehicle needs to be adjusted and maintained, the maintenance vehicle needs to move and clamp the tunnel, the size of the maintenance vehicle needs to be just equal to the size of the tunnel entrance, and the required effect can be achieved through adjusting and controlling the tunnel.
Based on the discovery of the inventor, the existing intelligent maintenance trolley for the tunnel lining mainly has the following defects, such as:
because the surface of the tunnel entrance is made of concrete, a little concave and convex sand and stones can move into the tunnel when the maintenance vehicle and the tunnel are just large, the small convex sand and stones can be easily resisted, the surface of the moving maintenance vehicle can be sunk, and the service life of the maintenance vehicle is influenced.
Therefore, the intelligent maintenance trolley for the tunnel lining concave-convex sand stone cast by concrete is required to be provided.
Disclosure of Invention
The maintenance vehicle comprises a tunnel entrance and a tunnel exit, wherein the tunnel entrance is provided with a concrete surface, the concrete surface is provided with a plurality of small concave and convex sand stones, the small concave and convex sand stones move into the tunnel when the maintenance vehicle and the tunnel are just large, the small convex sand stones are easy to abut against the tunnel, the surface of the maintenance vehicle in moving becomes hollow, and the service life of the maintenance vehicle is influenced.
The invention relates to a purpose and an effect of a concrete-cast tunnel lining concave-convex gravel intelligent maintenance trolley, which are achieved by the following specific technical means:
the structure of the utility model comprises an inner adjusting plate, a side supporting guard plate, an end inlet plate and a top separating plate.
The top separation plate is perpendicularly welded on the upper surface of the inner adjusting plate, one end, far away from the inner adjusting plate, of the top separation plate is connected with the side supporting maintenance plate, and the side supporting maintenance guard plate and the end inlet plate are of an integrated structure.
The end inlet plate comprises a supporting rotating body, a linking supporting plate and a rolling bidirectional wheel, the supporting rotating body penetrates through the inside of the linking supporting plate, and the supporting rotating body is connected with the rolling bidirectional wheel.
As a further improvement of the invention, the supporting and rotating body comprises two external hard wheels, two extending heads, two middle frame rods, two middle columns and a bracket, wherein the extending heads are connected with the middle frame rods, one ends of the middle frame rods, far away from the extending heads, are connected with the middle columns, the external hard wheels are attached to the outer surfaces of the bracket, and the extending heads are provided with two middle frame rods.
As a further improvement of the invention, the bidirectional grinding wheel comprises a heavy disc, a middle fixed point, a fork stay bar and a grinding and clamping angle, wherein the middle fixed point penetrates through the heavy disc and is positioned on the same axial center, the fork stay bar is welded on the outer surface of the middle fixed point, one end of the fork stay bar, which is far away from the middle fixed point, is connected with the grinding and clamping angle, the middle fixed point is of a cylindrical structure, the grinding and clamping angles are uniformly distributed in a circular shape, and the heavy disc is of a circular structure.
As a further improvement of the invention, the clamping grinding corner comprises a middle support ball, an arc expanding support, a sandwich core, a conical top, a front convex ball and side broken strips, wherein the arc expanding support is attached to the outer surface of the middle support ball, the sandwich core is supported to the outer surface of the front convex ball, the conical top is connected with the front convex ball, the side broken strips are attached to the outer surface of the sandwich core, the arc expanding support is of a semi-arc structure, the middle support ball is of a ball body structure, and the front convex ball is of a ball body structure.
As a further improvement of the invention, the fork supporting rod comprises a fastening end, fastening angles, supporting cores and rubber-sandwiched corners, wherein the fastening angles are connected with the fastening end, the rubber-sandwiched corners are attached to the outer surfaces of the fastening angles, one ends of the fastening angles far away from the fastening end are connected with the supporting cores, eight and four fastening angles are arranged in one group, and two supporting cores are arranged.
As a further improvement of the invention, the side strips comprise an outer hard layer, a slow glue layer and four slow capsule balls, wherein the slow capsule balls are embedded in the slow glue layer, the slow glue layer is connected with the outer hard layer, and the number of the slow capsule balls is four.
Compared with the prior art, the invention has the following beneficial effects:
the whole body is pushed inwards, the head end of the front end is a plate, if the front end touches the convex sand and stone in the moving process, the grinding bidirectional wheel is collided by the sand and stone, the broken sand and stone are still driven by the clamp angle, when the clamp angle rotates to a certain position along the middle fixed point, the position of the whole movement is controlled, the opposite and connected side broken strips can be smoothly crushed by the fixing force of the front convex ball on the sandwich, when the sand and the stone are clamped between the cone top heads, the sharp head effect of crushing is implemented to the outside, so that the supporting core can be crushed better and is resisted, the force of inward pressing is implemented to the supporting core, the whole body can not be scratched by sand and stone in the moving process, when the whole body is adjusted to move into the tunnel according to the size of the tunnel, the end head of the front end of the protruding sand stone is abutted to crush the sand stone, and the rear section of the sand stone is prevented from being scratched after moving into the tunnel.
Drawings
Fig. 1 is a schematic structural view of an intelligent maintenance trolley for a tunnel lining with concave-convex gravel cast by concrete.
Fig. 2 is a schematic top view of an end entry plate according to the present invention.
Fig. 3 is a schematic top view of an internal structure of the rotation supporting body according to the present invention.
Fig. 4 is a schematic front view of the internal structure of a bi-directional grinding wheel according to the present invention.
FIG. 5 is a schematic view of an elevation view of an internal structure of a corner roll according to the present invention.
Fig. 6 is a front view of the internal structure of a fork stay of the present invention.
FIG. 7 is a front view of an internal structure of a side breaker bar of the present invention.
In the figure: the device comprises an inner adjusting plate-11, a side supporting protection plate-22, an end inserting plate-33, a top partition plate-44, a supporting rotary body-aa 1, a holding supporting plate-aa 2, a rolling bidirectional wheel-aa 3, an outer hard wheel-tt 01, an extending head-tt 02, a middle frame rod-tt 03, a middle column-tt 04, a bracket-tt 05, a heavy plate-a 1a, a middle fixed point-a 2a, a fork supporting rod-a 3a, a rolling clamping angle-a 4a, a middle supporting ball-qwe 1, an arc expanding support-qwe 2, a sandwich core-qwe 3, a cone top head-qwe 4, a front convex ball-qwe 5, a side broken strip-qwe 6, a supporting end-qw 1, a gradual fixed angle-qw 2, a supporting core-qw 3, a glue clamping angle-qw 4, an outer hard layer-g 1, a slow glue layer-g 2 and a slow glue bag-g 3.
Detailed Description
The invention is further described below with reference to the accompanying drawings:
example (b):
as shown in figures 1 to 7:
the invention provides a concrete-cast tunnel lining concave-convex gravel intelligent maintenance trolley which structurally comprises an inner adjusting plate 11, a side supporting maintenance plate 22, an end inlet plate 33 and a top partition plate 44.
The top partition plate 44 is vertically welded on the upper surface of the inner adjusting plate 11, one end of the top partition plate 44, which is far away from the inner adjusting plate 11, is connected with the side supporting maintenance plate 22, and the side supporting maintenance plate 22 and the end head entering plate 33 are of an integrated structure.
The head inserting plate 33 comprises a supporting and rotating body aa1, a connecting and separating supporting plate aa2 and a bidirectional grinding wheel aa3, the supporting and rotating body aa1 penetrates through the connecting and separating supporting plate aa2, and the supporting and rotating body aa1 is connected with the bidirectional grinding wheel aa 3.
The supporting swivel body aa1 comprises an outer hard wheel tt01, an extending head tt02, a middle frame rod tt03, a middle column tt04 and a bracket tt05, the extending head tt02 is connected with the middle frame rod tt03, one end, far away from the extending head tt02, of the middle frame rod tt03 is connected with the middle column tt04, the outer hard wheel tt01 is attached to the outer surface of the bracket tt05, two middle frame rods tt03 are arranged, two extending heads tt02 are arranged, the bracket tt05 limits the whole movable range, the middle column tt04 drives the connection portion to move in a fixed position along with external force, the middle frame rod 03 is mainly used for bearing the external force, the outer hard wheel tt01 plays a protection role in protecting internal components, and the extending head tt02 enables an originally smooth inner portion to have an extra raised head to prevent the raised head from sliding and dislocation in the moving process.
The bidirectional grinding wheel aa3 comprises a heavy plate a1a, a middle fixing point a2a, a fork stay a3a and a grinding angle a4a, wherein the middle fixing point a2a penetrates through the interior of the heavy plate a1a and is located on the same axis, the fork stay a3a is welded on the outer surface of the middle fixing point a2a, one end of the fork stay a3a, which is far away from the middle fixing point a2a, is connected with the grinding angle a4a, the middle fixing point a2a is of a cylindrical structure, the grinding angle a4a is distributed uniformly in a circular shape, the heavy plate a1a is of a circular ring structure, the middle fixing point a2a controls the overall moving position, the fork stay a3a is used for supporting the distance between the outside and the inside to prevent excessive deformation, and the grinding angle a4a can make small sand and stone protruding from the outside when the impact force of the outside rotates to a certain distance.
The corner a4a includes a middle support ball qwe1, an arc expanding support qwe2, a sandwich core qwe3, a cone top head qwe4, a front convex ball qwe5 and side broken strips qwe6, the arc expanding support qwe2 is attached to the outer surface of the middle support ball qwe1, the sandwich core qwe3 is attached to the outer surface of the front convex ball qwe5, the cone top head qwe4 is connected with the front convex ball qwe5, the side broken strips qwe6 are attached to the outer surface of the sandwich core qwe3, the arc expanding support qwe2 is in a semi-arc structure, the middle support ball qwe1 is in a sphere structure, the front convex ball qwe5 is in a sphere structure, the middle support ball qwe1 gives a certain force resisting point as a whole, the arc expanding support qwe2 expands the buffering effect of the arc expanding support when being stressed, the sandwich core qwe3 is sandwiched between the middle protection effect, the cone top head qwe4 performs a pointed end effect of external connection, and the arc expanding can be crushed better.
The fork stay bar a3a comprises a butting end qw1, a fastening angle qw2, a supporting core qw3 and a glue clamping angle qw4, wherein the fastening angle qw2 is connected with the butting end qw1, the glue clamping angle qw4 is attached to the outer surface of the fastening angle qw2, one end, away from the butting end qw1, of the fastening angle qw2 is connected with the supporting core qw3, eight and four fixing angles qw2 form a group, two supporting cores qw3 are arranged, the butting end qw1 plays a role in total butting buffering when being stressed integrally, the fastening angle qw2 enables external force to be transmitted inwards stably, and the glue clamping angle qw4 can play a role in protection and buffering when being engaged with the qw portion, and the supporting core 3 is used for reinforcing the fastening portion.
Wherein, side broken strip qwe6 includes outer stereoplasm layer g1, slow glue layer g2, slow bag ball g3, slow bag ball g3 is embedded into inside slow glue layer g2, slow glue layer g2 is connected with outer stereoplasm layer g1, slow bag ball g3 is the spheroid structure, outer stereoplasm layer g1 is equipped with four, outer stereoplasm layer g1 bears external power on a large scale, and the conflict change of external force is followed to slow glue layer g2 and changes, and slow bag ball g3 can be extruded state when external force conflicts, lets it have certain counter force and hard power.
The specific use mode and function of the embodiment are as follows:
in the invention, when the inner adjusting plate 11 and the top partition plate 44 adjust the side supporting protection plate 22 to the same size as the tunnel entrance, the whole body is pushed inwards, the head end is the end inserting plate 33 at the most front end, if the side supporting protection plate touches the convex sand stone in the moving process, the bidirectional grinding wheel aa3 is collided by the sand stone, the outer hard wheel tt01 can firmly block the sand stone to push the sand stone along the tt central column 04, the central frame rod tt03 gives a certain fixing force to the outer periphery, the column tt04 rotates along the central column tt04, the broken sand stone is still driven by the clamping angle a4a, when the clamping angle a4a rotates to a certain position along the central fixing point a2a, the outer hard layer g1 bears the force, the inner buffer bag ball g3 is collided with the buffer rubber layer 2, the front convex ball qwe5 is pressed against the fixing point a qwe3, the opposite side supporting protection plate qwe6 is smoothly connected together, and the sand stone can be pressed between the clamp heads qwe4, the middle supporting ball qwe1 is resisted by the hard force of the middle supporting ball qwe1, so that the supporting core qw3 is pressed inwards, the fixed angle qw2 and the fixed end qw1 catch the supporting core qw3, the supporting core qw is prevented from being deformed excessively, the gravel and sand abutted to the surface of the conical top qwe4 can be crushed smoothly, and the whole body cannot be scratched by the gravel and sand in the moving process.
The technical solutions of the present invention or similar technical solutions designed by those skilled in the art based on the teachings of the technical solutions of the present invention are all within the scope of the present invention to achieve the above technical effects.
Claims (1)
1. An intelligent maintenance trolley for cast tunnel lining concave-convex sand stones structurally comprises an inner adjusting plate (11), a side supporting protection plate (22), an end inserting plate (33) and a top separating plate (44), wherein the top separating plate (44) is vertically welded to the upper surface of the inner adjusting plate (11), one end, far away from the inner adjusting plate (11), of the top separating plate (44) is connected with the side supporting protection plate (22), and the side supporting protection plate (22) and the end inserting plate (33) are of an integrated structure; the end head entering plate (33) comprises a supporting and rotating body (aa1), a linking and separating supporting plate (aa2) and a bidirectional grinding wheel (aa3), the supporting and rotating body (aa1) penetrates through the inside of the linking and separating supporting plate (aa2), and the supporting and rotating body (aa1) is connected with the bidirectional grinding wheel (aa 3);
the supporting and rotating body (aa1) comprises an outer hard wheel (tt01), an extending and expanding head (tt02), a middle frame rod (tt03), a middle column (tt04) and a bracket (tt05), wherein the extending and expanding head (tt02) is connected with the middle frame rod (tt03), one end, far away from the extending and expanding head (tt02), of the middle frame rod (tt03) is connected with the middle column (tt04), and the outer hard wheel (tt01) is attached to the outer surface of the bracket (tt 05);
the bidirectional grinding wheel (aa3) comprises a heavy plate (a1a), a middle fixed point (a2a), a fork supporting rod (a3a) and a grinding corner (a4a), wherein the middle fixed point (a2a) penetrates through the heavy plate (a1a) and is positioned on the same axis, the fork supporting rod (a3a) is welded on the outer surface of the middle fixed point (a2a), and one end, away from the middle fixed point (a2a), of the fork supporting rod (a3a) is connected with the grinding corner (a4 a);
the clamping grinding angle (a4a) comprises a middle support ball (qwe1), an arc expanding support (qwe2), a sandwich core (qwe3), a cone top head (qwe4), a front convex ball (qwe5) and side broken strips (qwe6), wherein the arc expanding support (qwe2) is attached to the outer surface of the middle support ball (qwe1), the sandwich core (qwe3) is abutted to the outer surface of the front convex ball (qwe5), the cone top head (qwe4) is connected with the front convex ball (qwe5), and the side broken strips (qwe6) are attached to the outer surface of the sandwich core (qwe 3);
the fork supporting rod (a3a) comprises an abutting end (qw1), a fixing angle (qw2), a supporting core (qw3) and a glue inclusion angle (qw4), wherein the fixing angle (qw2) is connected with the abutting end (qw1), the glue inclusion angle (qw4) is attached to the outer surface of the fixing angle (qw2), and one end, far away from the abutting end (qw1), of the fixing angle (qw2) is connected with the supporting core (qw 3);
the side strips (qwe6) comprise an outer hard layer (g1), a slow capsule layer (g2) and a slow capsule ball (g3), wherein the slow capsule ball (g3) is embedded in the slow capsule layer (g2), and the slow capsule layer (g2) is connected with the outer hard layer (g 1);
when the side supporting protection plate (22) is adjusted to be the same as the tunnel entrance by the inner adjusting plate (11) and the top partition plate (44) in use, the whole body is pushed inwards, the end inlet plate (33) is arranged at the foremost end, the two-way grinding wheel (aa3) is collided by sand stones when the two-way grinding wheel touches the raised sand stones in the moving process, the outer hard wheel (tt01) can firmly clamp the sand stones and push the sand stones along the center post (tt04), the center post (03) gives a certain fixing force to the periphery thereof, the center post (04) rotates along the center post (tt04), the broken sand stones are still driven by the grinding angle (a4a), when the grinding angle (a4a) rotates to a certain position along the center fixing point (a2a), the outer hard layer (g1) is collided by the inner part of the center post (tt04), and the slow capsule ball (3) is pressed by the front convex ball (qwe3) in the slow capsule fixing layer (2 g qwe5), when the gravel is clamped between the cone top heads (qwe4), the hard force of the middle supporting ball (qwe1) pushes the gravel against the side broken strips (qwe6) which are oppositely connected together, so that the supporting core (qw3) is pressed inwards, the gradual fixing angle (qw2) and the abutting end (qw1) hold the gravel, the gravel is not deformed excessively, the gravel which abuts against the surface of the cone (qwe4) can be crushed smoothly, and the whole body cannot be damaged by the gravel in the moving process.
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| CN201910864021.0A CN110656956B (en) | 2019-09-12 | 2019-09-12 | Concrete-cast tunnel lining concave-convex gravel intelligent maintenance trolley |
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| CN110656956B true CN110656956B (en) | 2020-12-15 |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203730010U (en) * | 2013-09-02 | 2014-07-23 | 中铁十六局集团第一工程有限公司 | Tunnel lining concrete curing trolley |
| CN205109725U (en) * | 2015-10-23 | 2016-03-30 | 古堂辉 | Sand cutter |
| CN107575247A (en) * | 2017-10-17 | 2018-01-12 | 中铁隧道集团二处有限公司 | A kind of tunnel arch wall steam curing trolley |
| CN107602150A (en) * | 2017-09-30 | 2018-01-19 | 龚岗 | Tunnel concrete maintenance trolley |
| CN207297026U (en) * | 2017-09-29 | 2018-05-01 | 中国电建集团铁路建设有限公司 | A kind of light-duty multifunctional tunnel-liner conserves rack |
| CN108442946A (en) * | 2018-04-26 | 2018-08-24 | 中铁十七局集团第三工程有限公司 | Tunnel double-lining vault and abutment wall sealed maintenance device and method |
| CN207892629U (en) * | 2018-01-01 | 2018-09-21 | 北京瑞威世纪铁道工程有限公司 | The grid steel frame of steel concrete supporting is used in a kind of constructing tunnel |
| CN207920629U (en) * | 2017-12-29 | 2018-09-28 | 中铁第五勘察设计院集团有限公司 | Tunnel-liner intelligence maintenance trolley bellows seal device |
| CN208918552U (en) * | 2018-07-26 | 2019-05-31 | 中铁十一局集团第四工程有限公司 | A kind of high-speed rail Tunnel Second Lining concrete curing device |
| CN109869165A (en) * | 2019-04-24 | 2019-06-11 | 陈新 | A kind of anti-skid balancer of constructing tunnel lining device |
-
2019
- 2019-09-12 CN CN201910864021.0A patent/CN110656956B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203730010U (en) * | 2013-09-02 | 2014-07-23 | 中铁十六局集团第一工程有限公司 | Tunnel lining concrete curing trolley |
| CN205109725U (en) * | 2015-10-23 | 2016-03-30 | 古堂辉 | Sand cutter |
| CN207297026U (en) * | 2017-09-29 | 2018-05-01 | 中国电建集团铁路建设有限公司 | A kind of light-duty multifunctional tunnel-liner conserves rack |
| CN107602150A (en) * | 2017-09-30 | 2018-01-19 | 龚岗 | Tunnel concrete maintenance trolley |
| CN107575247A (en) * | 2017-10-17 | 2018-01-12 | 中铁隧道集团二处有限公司 | A kind of tunnel arch wall steam curing trolley |
| CN207920629U (en) * | 2017-12-29 | 2018-09-28 | 中铁第五勘察设计院集团有限公司 | Tunnel-liner intelligence maintenance trolley bellows seal device |
| CN207892629U (en) * | 2018-01-01 | 2018-09-21 | 北京瑞威世纪铁道工程有限公司 | The grid steel frame of steel concrete supporting is used in a kind of constructing tunnel |
| CN108442946A (en) * | 2018-04-26 | 2018-08-24 | 中铁十七局集团第三工程有限公司 | Tunnel double-lining vault and abutment wall sealed maintenance device and method |
| CN208918552U (en) * | 2018-07-26 | 2019-05-31 | 中铁十一局集团第四工程有限公司 | A kind of high-speed rail Tunnel Second Lining concrete curing device |
| CN109869165A (en) * | 2019-04-24 | 2019-06-11 | 陈新 | A kind of anti-skid balancer of constructing tunnel lining device |
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