CN216342231U

CN216342231U - Simple platform for installing tunnel lining structure

Info

Publication number: CN216342231U
Application number: CN202123268419.XU
Authority: CN
Inventors: 张�荣
Original assignee: Fourth Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
Current assignee: Fourth Engineering Co Ltd of China Railway 12th Bureau Group Co Ltd
Priority date: 2021-12-23
Filing date: 2021-12-23
Publication date: 2022-04-19
Anticipated expiration: 2031-12-23

Abstract

The utility model provides a simple platform for installing a tunnel lining structure, which comprises a platform main body, wherein the bottom of the platform main body is provided with trundles for the platform main body to walk; the top of the bed plate is provided with a bed plate for a person to stand; the device comprises a bedplate, a clamping positioning device, a first lifting column and a second lifting column, wherein guardrails are distributed around the bedplate, a first rail is arranged on the bedplate, the first rail is movably provided with the clamping positioning device, the first lifting column comprises a first lifting column, and the top of the first lifting column is rotatably provided with a swing arm for lifting a steel arch frame segment; the bedplate is also provided with a second rail, the second rail is movably provided with a vertical transportation device and comprises a second lifting column, and the top of the second lifting column is provided with a lifting mechanism for lifting steel arch frame segments; the problems that in the construction process of a small tunnel, a steel arch support is complex to install and is difficult to transport are solved.

Description

Simple platform for installing tunnel lining structure

Technical Field

The utility model relates to the field of tunnel equipment, in particular to a simple platform for installing a tunnel lining structure.

Background

The mountain area of China accounts for two thirds of the total area of the national soil, and southwest areas are typical mountain areas and hilly landforms. With the great promotion of the strategy of the strong country of transportation, the national highway and railway transportation network is more and more dense, and the quantity of highway and railway projects in mountainous areas and hilly areas is large. The highway and railway engineering in mountain areas and hilly areas has the characteristics of large proportion of bridges and tunnels, and the tunnels contained in the highway and railway engineering belong to medium-short distance tunnels, and the like, and the construction of the medium-short distance tunnels by adopting an advanced shield method has the problem of being uneconomical, so that the traditional drilling and blasting method is mostly adopted for construction in the process of constructing the tunnels. However, due to the complex geological conditions in mountainous areas, unfavorable geological phenomena such as faults, broken zones, karsts and the like are often encountered in the tunnel excavation process, so that the steel arch frames are required to be adopted for primary support in the tunnel excavation process by the drilling and blasting method.

In the small-size tunnel work progress at present, because the limited main equipment in space can't get into, the steel bow member is strutted construction flow and is generally: a simple supporting platform is built by workers, the workers stand on the platform, lift the steel arch frame segments by bare hands, move the steel arch frame segments to a preset position, and then are connected with other installed segments into a whole in a bolt connection mode, a welding connection mode and the like to form a closed annular tunnel supporting structure.

According to the method, the vertical transportation and the positioning installation of the steel arch are mainly completed in the steel arch support construction by manpower, the physical requirement on workers is high, the labor consumption is high, safety accidents are easy to occur, and the construction speed is low. In view of the above, the utility model provides a simple platform for installing a tunnel lining structure.

Disclosure of Invention

The technical problem to be solved by the utility model is as follows: the problems that in the construction process of a small tunnel, a steel arch support is complex to install and is difficult to transport are solved.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

the simple platform for installing the tunnel lining structure comprises a platform main body, wherein the bottom of the platform main body is provided with trundles for the platform main body to walk; the top of the bed plate is provided with a bed plate for a person to stand; the device comprises a bedplate, a clamping positioning device, a first lifting column and a second lifting column, wherein guardrails are distributed around the bedplate, a first rail is arranged on the bedplate, the first rail is movably provided with the clamping positioning device, the first lifting column comprises a first lifting column, and the top of the first lifting column is rotatably provided with a swing arm for lifting a steel arch frame segment; the bedplate is also provided with a second rail, the second rail is movably provided with a vertical transportation device and comprises a second lifting column, and the top of the second lifting column is provided with a lifting mechanism for lifting steel arch frame segments; when the lifting mechanism is used, the steel arch frame segments are conveyed to the swing arms to be lifted upwards by the lifting mechanism.

Preferably, the first rail is arranged along the center line of the bedplate; the second track is arranged in the shape of the outline of the bedplate.

Preferably, the top of the first lifting column is provided with an angle adjusting box, a driving gear driven to rotate by a motor is arranged in the angle adjusting box, a driven gear is installed at one end of the swing arm, and the driven gear is meshed with the driving gear.

Preferably, the swing arms and the driven gears matched with the swing arms are two groups and are respectively meshed with the driving gear, so that the two swing arms are symmetrically arranged on two sides of the first lifting column.

Preferably, the swing arm is provided with a clamping jaw, and the clamping jaw opens or clamps the steel arch sheet through a hydraulic cylinder.

Preferably, the lifting mechanism comprises an electric hoist driving wheel wound with a lifting rope; the lifting mechanism further comprises a supporting rod, one end of the supporting rod is hinged to the second lifting column and is arranged in a cantilever mode, the supporting rod is driven to swing through a hydraulic cylinder arranged at the hinged end of the second lifting column, a guide wheel is arranged at the other end of the supporting rod, and the lifting rope is wound on the guide wheel and extends downwards.

The utility model has the beneficial effects that: the transportation of the steel arch frame segments is completed by adopting the vertical transportation device, so that the vertical transportation of the steel arch frame segments is more convenient and faster; in addition, the clamping and positioning device is adopted to complete the positioning and supporting of the steel arch frame segment, the danger of manually lifting the steel arch frame segment band by hands and the inconvenience in installation are avoided, and a convenient operation foundation is provided for the construction of bolt connection or welded connection. The construction process of the tunnel surrounding rock steel arch frame supporting structure is improved on the whole, the labor intensity of workers is reduced, the tunnel construction speed is accelerated, the construction safety is improved, and the construction cost is saved.

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 some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of an overall platform provided in an embodiment of the present invention;

FIG. 2 is a schematic view of the clamp positioning device of FIG. 1;

fig. 3 is a schematic view of the vertical transportation device of fig. 1.

In the figure: 1-platform body, 1.1-guardrail, 1.2-bedplate, 1.3-second rail, 1.4-first rail, 2-clamping positioning device, 2.1-first lifting column, 2.2-angle adjusting box, 2.3-swing arm, 2.4-clamping jaw, 2.5-hydraulic cylinder, 2.6-main gear, 2.7-driven gear, 3-vertical conveying device, 3.1-second lifting column, 3.2-electric hoist driving wheel, 3.3-guide wheel, 3.4-support rod and 3.5-lifting rope.

Detailed Description

The above-described scheme is further illustrated below with reference to specific examples. It is to be understood that these examples are for the purpose of illustrating the utility model and are not to be construed as limiting the scope of the utility model. The conditions used in the examples may be further adjusted according to the conditions of the particular manufacturer, and the conditions not specified are generally the conditions in routine experiments.

In a specific embodiment, a simple platform for installing a tunnel lining structure is provided, which is suitable for being used in the construction process of a small tunnel, and specifically comprises a platform main body 1 formed by riveting or welding profile steel, wherein casters for enabling the platform main body 1 to walk are arranged at the bottom of the platform main body 1, the platform can be pushed when the platform is used, and the casters can be driven by a chain driving mechanism, so that the platform can be moved, and a bedplate 1.2 for a person to stand is arranged at the top of the platform main body 1; the guardrail 1.1 is arranged around the bedplate 1.2, and the height of the guardrail 1.1 can be adjusted according to the use requirement. A first rail 1.4 is arranged on the bedplate 1.2, and a clamping and positioning device 2 is movably arranged on the first rail 1.4, namely the positioning device can walk along the first rail 1.4.

The clamping and positioning device 2 comprises a first lifting column 2.1 driven by hydraulic pressure or a spiral structure, and the height of the lifting column is lifted. And a swing arm 2.3 for lifting the steel arch frame segment is rotatably arranged at the top of the first lifting column 2.1.

In addition, a second rail 1.3 is provided on the bedplate 1.2, and the vertical transport device 3 is movably mounted on the second rail 1.3, i.e. the vertical transport device 3 can move on the second rail 1.3. The vertical transportation device 3 comprises a second lifting column 3.1, and a lifting mechanism for lifting the steel arch frame segment is arranged at the top of the vertical transportation device 3;

during the use, hoist mechanism can upwards pull the steel bow member fragment from ground to transport and upwards lift to swing arm 2.3, make steel bow member fragment top press on the roof in excavation tunnel, avoided artifical bare-handed danger and the installation of lifting steel bow member fragment area inconvenient, and provide convenient operation basis for bolted connection or welded connection construction. The labor intensity of workers is reduced, and the construction safety is improved.

Based on above-mentioned scheme, for the regulation of being convenient for further to steel bow member fragment mounted position, set up first track 1.4 along platen 1.2 central line, the mounted position that can quick adjustment steel bow member piece through the removal of clamping positioner 2 makes the installation more accurate convenient.

In addition, the second rail 1.3 is arranged according to the outline shape of the bedplate 1.2, namely the second rail 1.3 is in a circular shape arranged along the outline of the bedplate 1.2, the vertical transportation device 3 moves along the second rail 1.3, the vertical transportation device 3 can reach any position around the platform, the steel arch piece can be flexibly hoisted and placed on the clamping and positioning device 2 quickly. The clamping and positioning device 2 and the vertical conveying device 3 can be flexibly matched for use.

During the use, for realizing placing and supporting the steel bow member piece fast and stably, can set swing arm 2.3 to swing structure, hang the position angle of getting the steel bow member according to perpendicular conveyer 3 and adjust swing arm 2.3. The concrete structure of adopting in this scheme does: be provided with angle modulation case 2.2 at first lift post 2.1 top, its inside driving gear 2.6 that is provided with through the motor drive commentaries on classics, driven gear 2.7 are installed to swing arm 2.3 one end, driven gear 2.7 with the meshing setting of driving gear 2.6. The driving gear 2.6 rotates to drive the swing arm 2.3 to swing to adjust the angle and the position. On this basis, can all set up swing arm 2.3 and with its complex driven gear 2.7 to two sets of, two sets of driven gear 2.7 mesh with driving gear 2.6 respectively and set up to make two swing arms 2.3 symmetry set up in first lift post 2.1 both sides. Two swing arms 2.3 swing to its both sides simultaneously when driving gear 2.6 rotates, form Y font bearing structure to the contained angle between two swing arms 2.3 of adjustable, consequently, two swing arms 2.3 through Y font arrangement can be more stable lift steel bow member and steel bow member fragment, improve the safety in utilization, and can make accurate the support of steel bow member fragment in tunnel roof assigned position, improve work efficiency.

In the same way, in order to realize the fixed installation of the swing arm 2.3 and the steel arch frame segment, the swing arm 2.3 is provided with the clamping jaw 2.4, and the clamping jaw 2.4 opens or clamps the steel arch frame segment through the hydraulic cylinder 2.5. The steel arch piece is prevented from sliding to one side when being lifted.

Based on the scheme, the lifting mechanism in the scheme has the specific structure that the lifting mechanism comprises an electric hoist driving wheel 3.2 and a lifting rope 3.5 wound on the electric hoist driving wheel; forming a general electric hoist lifting device. In addition, hoist mechanism still includes that one end articulates in second lift post 3.1 and is the branch 3.4 that the cantilever set up, and branch 3.4 is provided with pneumatic cylinder 2.5 through articulating the end with second lift post 3.1, can drive the swing of branch 3.4, and then can adjust the lifting height, and the steel bow member piece of being convenient for is placed on swing arm 2.3.

A guide wheel 3.3 is arranged at the other end of the support rod 3.4, and a lifting rope 3.5 is wound on the guide wheel 3.3 and extends downwards to avoid lifting the steel arch sheet on the platform main body 1.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A simple platform for installing a tunnel lining structure comprises a platform main body (1), wherein the bottom of the platform main body (1) is provided with trundles for the platform main body (1) to walk; the top of the bed plate is provided with a bed plate (1.2) for a person to stand; guardrail (1.1) have been laid around platen (1.2), its characterized in that:

a first rail (1.4) is arranged on the bedplate (1.2), a clamping and positioning device (2) is movably arranged on the first rail (1.4), and comprises a first lifting column (2.1), and a swing arm (2.3) for lifting a steel arch frame segment is rotatably arranged at the top of the first lifting column;

the bedplate (1.2) is also provided with a second rail (1.3), the second rail (1.3) is movably provided with a vertical transportation device (3) and comprises a second lifting column (3.1), and the top of the second lifting column is provided with a lifting mechanism for lifting steel arch frame segments;

when the lifting mechanism is used, the steel arch frame segment is conveyed to the swing arm (2.3) to be lifted upwards by the lifting mechanism.

2. A tunnel lining structure installation simplicity platform as claimed in claim 1, wherein said first track (1.4) is located along the centerline of said deck (1.2); the second rail (1.3) is arranged according to the contour shape of the bedplate (1.2).

3. The simple platform for installing the tunnel lining structure according to claim 1, wherein an angle adjusting box (2.2) is arranged at the top of the first lifting column (2.1), a driving gear (2.6) driven by a motor is arranged in the angle adjusting box, a driven gear (2.7) is arranged at one end of the swing arm (2.3), and the driven gear (2.7) is meshed with the driving gear (2.6).

4. A tunnel lining structure mounting platform as claimed in claim 3, wherein said swing arms (2.3) and said driven gears (2.7) engaged therewith are provided in two sets and are respectively engaged with said driving gears (2.6), so that said swing arms (2.3) are symmetrically disposed on both sides of said first lifting column (2.1).

5. The simple platform for installing the tunnel lining structure according to claim 1, characterized in that the swing arm (2.3) is provided with a clamping jaw (2.4), and the clamping jaw (2.4) opens or clamps the steel arch sheet through a hydraulic cylinder (2.5).

6. The simple platform for installing a tunnel lining structure according to any one of claims 1 to 5, wherein the lifting mechanism comprises a hoist driving wheel (3.2) wound with a lifting rope (3.5);

the lifting mechanism further comprises a supporting rod (3.4) with one end hinged to the second lifting column (3.1) and arranged in a cantilever mode, the supporting rod (3.4) is driven to swing through a hydraulic cylinder arranged at the hinged end of the second lifting column (3.1), a guide wheel (3.3) is arranged at the other end of the supporting rod (3.4), and the lifting rope (3.5) is wound on the guide wheel (3.3) and extends downwards.