CN210152681U

CN210152681U - Automatic contraction device for tunnel inverted arch bending die

Info

Publication number: CN210152681U
Application number: CN201920778212.0U
Authority: CN
Inventors: 刘博�; 孔甲东; 孙文永; 刘斌; 李忠实; 吕柏行
Original assignee: China Construction Civil Engineering Co Ltd
Current assignee: China Construction Civil Engineering Co Ltd
Priority date: 2019-05-28
Filing date: 2019-05-28
Publication date: 2020-03-17
Anticipated expiration: 2029-05-28

Abstract

The utility model discloses an automatic constriction device of tunnel bending mould of facing upward, include: truss and invert arc fagging, invert arc fagging is located the bottom of truss, invert arc fagging includes left arc fagging and right arc fagging, one side of left side arc fagging is through pivot and right arc fagging swing joint, the top of truss is provided with the base. The utility model provides a traditional tunnel face upward and encircle the bent mould ann and tear the difficulty open, the preparation step is complicated, and complex operation, the control accuracy is poor, the hard control invert radian for the problem that the efficiency of construction is low, this tunnel face upward and encircle the automatic constriction device of bent mould, it is convenient to contract, control is accurate, the invert radian of effective control invert arc fagging, the tunnel face upward encircles the automatic constriction device simple manufacture of bent mould, with low costs, convenient operation, work efficiency has been improved greatly, guarantee construction quality, but wide application in highway, railway tunnel invert concrete construction.

Description

Automatic contraction device for tunnel inverted arch bending die

Technical Field

The utility model belongs to the technical field of the tunnel construction, especially, relate to an automatic constriction device of tunnel bending mould.

Background

The inverted arch is a reverse arch structure arranged at the bottom of the tunnel for improving the stress condition of an upper supporting structure, is one of main components of the tunnel structure, and is used for effectively transmitting the pressure of the stratum at the upper part of the tunnel to the ground through a side wall structure of the tunnel or the load on the road surface and also effectively resisting the counter force transmitted from the stratum at the lower part of the tunnel, so that the inverted arch and the secondary lining form the whole tunnel, and the structural stability is improved.

Tunnel inverted arch construction needs use the tunnel and faces upward the hunch mould, and traditional tunnel is faced upward the hunch mould and is carried by the manual work, and the on-the-spot installation, steel pipe frame and to the lacing wire reinforcement.

The difficulty is torn open in installation of traditional tunnel bending mould that is faced upward, and the preparation step is complicated, complex operation moreover, and control accuracy is poor, hardly controls the arch radian for the efficiency of construction is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a tunnel is faced upward and is arched automatic constriction device of mould has the advantage of convenient operation and effective control invert radian, has solved traditional tunnel and has faced upward to arch mould ann and tear the difficulty open, and the preparation step is complicated, complex operation moreover, and the control accuracy is poor, the difficult control invert radian for the problem that the efficiency of construction is low.

The utility model provides an above-mentioned technical problem's technical scheme as follows: an automatic contraction device for a tunnel inverted arch mould, comprising: truss and invert arc fagging, invert arc fagging is located the bottom of truss, invert arc fagging includes left arc fagging and right arc fagging, one side of left side arc fagging is through pivot and right arc fagging swing joint, the top of truss is provided with the base, one side swing joint of base has invert template upset arm, invert template upset arm's right side is provided with lug device and pivot frame, lug device is located the top of pivot frame, the inner chamber of pivot frame has hydraulic cylinder through pivot swing joint, the right side of truss is through pivot and hydraulic cylinder's output shaft swing joint, the left side fixed mounting of right arc fagging has the mount, one side of lug device is provided with wire rope, one side and the wire rope fixed connection of mount.

The utility model adopts the above be used for the tunnel to pitch up automatic constriction device of hunch bent mould, it is further: the base comprises a base frame, the bottom of the base frame is fixedly installed with the truss through bolts, a detachable pin shaft is arranged on one side of the base frame, and the surface of the pin shaft is rotatably connected with the inverted arch template overturning arm.

The utility model adopts the above be used for the tunnel to pitch up automatic constriction device of hunch bent mould, it is further: the lug device includes the fixed block, the left side and the inverted arch template upset arm fixed connection of fixed block, the equal fixedly connected with pivot in front side and the rear side of fixed block, the surface of pivot is rotated and is connected with the couple frame, the inner chamber of couple frame has the lifting hook through pivot swing joint, the surface and the wire rope movable mounting of lifting hook.

The utility model adopts the above be used for the tunnel to pitch up automatic constriction device of hunch bent mould, it is further: the inner cavity of the lifting hook is fixedly connected with a limiting block.

The utility model adopts the above be used for the tunnel to pitch up automatic constriction device of hunch bent mould, it is further: the diameter of the steel wire rope is 12mm, and the base is formed by machining a steel plate with the thickness of 20 mm.

The utility model adopts the above be used for the tunnel to pitch up automatic constriction device of hunch bent mould, it is further: the inverted arch template overturning arm is formed by machining 10 × 8mmmm thick square steel.

The utility model has the advantages that:

1. the utility model drives the inverted arch template turnover arm to rotate by taking the pin shaft as the shaft through the expansion of the hydraulic oil cylinder, the inverted arch template turnover arm drives the right arc supporting plate to move through the steel wire rope between the lifting lug device and the fixed frame, because the hydraulic oil cylinder can be controlled to be arbitrarily contracted, the purposes of convenient operation and effective control of the arc degree of the inverted arch can be achieved, the problems that the traditional tunnel inverted arch bending die is difficult to install and disassemble and the manufacturing steps are complex are solved, but also has the problems of complex operation, poor control precision and difficult control of the arc degree of the inverted arch, which causes low construction efficiency, this automatic constriction device of tunnel bending mould that faces upward, it is convenient to contract, and control is accurate, the inverted arch radian of effective control inverted arch arc fagging, tunnel bending mould automatic constriction device that faces upward simple manufacture, with low costs, convenient operation have improved work efficiency greatly, guarantee construction quality, but wide application in highway, railway tunnel inverted arch concrete construction.

2. The utility model discloses a setting of lug device can make wire rope be convenient for dismouting on the surface of lifting hook, and the stopper can carry on spacingly to the wire rope of lifting hook inner chamber moreover for wire rope is difficult for droing at lifting hook surface during operation.

Drawings

The above and/or other aspects and advantages of the present invention will become more apparent and more readily appreciated from the detailed description taken in conjunction with the following drawings, which are given by way of illustration only and not by way of limitation, wherein:

fig. 1 is a schematic front view of an embodiment of the present invention;

fig. 2 is a schematic perspective view of an inverted arch form turnover arm structure according to an embodiment of the present invention;

fig. 3 is a schematic perspective view of a structure of a lifting lug device according to an embodiment of the present invention.

In the drawings, the components represented by the respective reference numerals are listed below:

1. truss, 2, inverted arch arc fagging, 21, left arc fagging, 22, right arc fagging, 3, base, 31, base frame, 32, round pin axle, 4, inverted arch template upset arm, 5, lug device, 51, fixed block, 52, pivot, 53, lifting hook frame, 54, lifting hook, 55, stopper, 6, pivot frame, 7, hydraulic cylinder, 8, mount, 9, wire rope.

Detailed Description

Hereinafter, an embodiment of the tunnel inverted arch mold automatic contraction device of the present invention will be described with reference to the accompanying drawings.

The embodiments described herein are specific embodiments of the present invention, and are intended to be illustrative of the concepts of the present invention, which are intended to be illustrative and exemplary, and should not be construed as limiting the scope of the embodiments of the present invention. In addition to the embodiments described herein, those skilled in the art will be able to employ other technical solutions which are obvious based on the disclosure of the claims and the specification of the present application, and these technical solutions include technical solutions which make any obvious replacement or modification for the embodiments described herein.

The drawings in the present specification are schematic views to assist in explaining the concept of the present invention, and schematically show the shapes of the respective portions and the mutual relationships thereof. It should be noted that for the sake of clarity in showing the structures of the various components of the embodiments of the present invention, the drawings are not drawn to the same scale. Like reference numerals are used to denote like parts.

Fig. 1-3 show the automatic constriction device of tunnel inverted arch mould of an embodiment of the utility model, include: the inverted arch type truss structure comprises a truss 1 and an inverted arch type arc supporting plate 2, wherein the inverted arch type arc supporting plate 2 is positioned at the bottom of the truss 1, the inverted arch type arc supporting plate 2 comprises a left arc supporting plate 21 and a right arc supporting plate 22, one side of the left arc supporting plate 21 is movably connected with the right arc supporting plate 22 through a rotating shaft, and the left arc supporting plate can be connected with the truss in a welding mode; the top of the truss 1 is provided with a base 3, one side of the base 3 is movably connected with an inverted arch template overturning arm 4, the inverted arch template overturning arm 4 is processed by 10 × 8mm thick square steel, the base 3 comprises a base frame 31, the bottom of the base frame 31 is fixedly installed with the truss 1 through bolts, one side of the base frame 31 is provided with a detachable pin shaft 32, the surface of the pin shaft 32 is rotatably connected with the inverted arch template overturning arm 4, the right side of the inverted arch template overturning arm 4 is provided with a lifting lug device 5 and a rotating shaft frame 6, the lifting lug device 5 comprises a fixed block 51, the left side of the fixed block 51 is fixedly connected with the inverted arch template overturning arm 4, the front side and the rear side of the fixed block 51 are fixedly connected with rotating shafts 52, the surface of the rotating shafts 52 is rotatably connected with a lifting hook frame 53, the inner cavity of the lifting hook frame 53 is movably connected with a lifting hook 54 through the rotating shafts, the surface of the lifting, through the setting of lug device 5, can make wire rope 9 be convenient for dismouting on the surface of lifting hook 54, and stopper 55 can carry on spacingly to the wire rope 9 of lifting hook 54 inner chamber, make wire rope 9 be difficult for droing when lifting hook 54 surface work, lug device 5 is located the top of pivot frame 6, the left side and the inverted arch template turnover arm 4 fixed connection of pivot frame 6, the inner chamber of pivot frame 6 has hydraulic cylinder 7 through pivot swing joint, the output shaft swing joint of pivot and hydraulic cylinder 7 is passed through on the right side of truss 1, the left side fixed mounting of right side arc fagging 22 has mount 8, one side of lug device 5 is provided with wire rope 9, wire rope 9's diameter is 12mm, base 3 adopts 20mm thick steel plate processing to form, one side and the wire rope 9 fixed connection of mount 8.

The working principle is as follows: the utility model discloses during the use, hydraulic cylinder 7's flexible drive invert template upset arm 4 uses round pin axle 32 to rotate as the axle, invert template upset arm 4 drives lug device 5 motion, lug device 5 makes invert arc fagging 2 motion through pivot frame 6, mount 8 and wire rope 9, adjust invert arc degree of invert arc fagging 2, realize invert and invert filling layer-built, ensure invert structure size, tunnel invert mould automatic retraction device simple manufacture, with low costs, convenient operation, greatly improved work efficiency, guarantee construction quality, but wide application in highway, railway tunnel invert concrete construction, adopt the bolt to be connected base 3 and truss 1 every 1.5m on truss 1 according to the size of base 3, the automatic retraction device of bend mould is in the course of working, unloading according to structural dimension strictly, welding, car silk, The opening is opened, the connecting spot welding seam must be full, and welding seam length meets the requirements, strictly forbids adopting oxygen or electrogas welding cutting, when using, inspects support screw's overall stability, uses the back, strengthens the maintenance to support screw, prevents to take place distortion.

In summary, the following steps: this automatic constriction device of tunnel bending mould, flexible through hydraulic cylinder 7, it uses round pin axle 32 to rotate as the axle to drive inverted arch template upset arm 4, inverted arch template upset arm 4 passes through wire rope 9 between lug device 5 and the mount 8 and drives the motion of right arc fagging 22, because hydraulic cylinder 7 control can contract wantonly, can reach the purpose of convenient operation and effective control inverted arch radian, it tears the difficulty to have solved traditional tunnel bending mould ann and tear open, the preparation step is complicated, and complex operation, the control precision is poor, hard control inverted arch radian, make the problem that the efficiency of construction is low, this method is single can be operated the arc template, construction speed is fast, inverted arch radian has been ensured, inverted arch construction quality has effectively been guaranteed.

The technical features disclosed above are not limited to the combinations with other features disclosed, and other combinations between the technical features can be performed by those skilled in the art according to the purpose of the invention to achieve the aim of the invention.

Claims

1. The utility model provides an automatic constriction device of tunnel bending mould that faces upward which characterized in that includes: the inverted arch type steel truss structure comprises a truss (1) and inverted arch type arc supporting plates (2), wherein the inverted arch type arc supporting plates (2) are located at the bottom of the truss (1), each inverted arch type arc supporting plate (2) comprises a left arc supporting plate (21) and a right arc supporting plate (22), one side of each left arc supporting plate (21) is movably connected with the corresponding right arc supporting plate (22) through a rotating shaft, a base (3) is arranged at the top of the truss (1), one side of each base (3) is movably connected with an inverted arch template overturning arm (4), a lifting lug device (5) and a rotating shaft frame (6) are arranged on the right side of each inverted arch template overturning arm (4), the lifting lug device (5) is located at the top of the rotating shaft frame (6), an inner cavity of the rotating shaft frame (6) is movably connected with a hydraulic oil cylinder (7) through the rotating shaft, and the right side of the truss (1, the left side fixed mounting of right side arc fagging (22) has mount (8), one side of lug device (5) is provided with wire rope (9), one side and wire rope (9) fixed connection of mount (8).

2. The automatic tunnel inverted arch formwork contraction device according to claim 1, wherein the base (3) comprises a base frame (31), the bottom of the base frame (31) is fixedly installed with the truss (1) through bolts, a detachable pin shaft (32) is arranged on one side of the base frame (31), and the surface of the pin shaft (32) is rotatably connected with the inverted arch formwork overturning arm (4).

3. The automatic tunnel inverted arch mold shrinking device according to claim 1, wherein the lifting lug device (5) comprises a fixed block (51), the left side of the fixed block (51) is fixedly connected with the inverted arch mold plate turnover arm (4), the front side and the rear side of the fixed block (51) are both fixedly connected with a rotating shaft (52), the surface of the rotating shaft (52) is rotatably connected with a lifting hook frame (53), the inner cavity of the lifting hook frame (53) is movably connected with a lifting hook (54) through the rotating shaft, and the surface of the lifting hook (54) is movably installed with the steel wire rope (9).

4. The automatic retraction device for tunnel inverted arch mould according to claim 3, characterized in that the inner cavity of the lifting hook (54) is fixedly connected with a limiting block (55).

5. The automatic contraction device of the tunnel inverted arch mould as claimed in claim 1, wherein the diameter of the steel wire rope (9) is 12mm, and the base (3) is machined from a steel plate with the thickness of 20 mm.

6. The automatic retraction device for inverted arch formwork of tunnel according to claim 1, characterized in that said inverted formwork turnover arm (4) is machined from square steel 10 x 8mm thick.