CN210049108U

CN210049108U - A roof beam equipment falls for in tunnel

Info

Publication number: CN210049108U
Application number: CN201920478340.3U
Authority: CN
Inventors: 黄兵; 郑忠; 狄海波; 陶伟
Original assignee: Sichuan Yakang Expressway Co Ltd
Current assignee: Sichuan Yakang Expressway Co Ltd
Priority date: 2019-04-10
Filing date: 2019-04-10
Publication date: 2020-02-11
Anticipated expiration: 2029-04-10

Abstract

The utility model provides a roof beam equipment falls for in tunnel. The beam falling equipment used in the tunnel comprises two upright posts; the two longitudinal beams are respectively and fixedly arranged at the tops of the corresponding upright columns; the two pull rods are fixedly arranged on one sides, far away from each other, of the two stand columns respectively, the two pull rods are arranged obliquely, and one ends, far away from the stand columns, of the two pull rods are anchored with the ground; the two beam falling structures are respectively and fixedly arranged at the tops of the corresponding longitudinal beams, and the same beam falling structure comprises a distribution beam, a leveling plate, two lowering jacks, two steel strands and two anchors; and the steel box girder is positioned between the two upright posts. The utility model provides a pair of a roof beam equipment that falls for in tunnel has that the roof beam stability that falls is good, safe and reliable, and the roof beam is fast that just falls, advantage that the efficiency of construction is high.

Description

A roof beam equipment falls for in tunnel

Technical Field

The utility model relates to a tunnel and bridge engineering machine tool field especially relates to a roof beam equipment that falls for in tunnel.

Background

Along with the continuous development and construction of roads, bridges and tunnels in China, the urban road traffic scale, the operation speed, the operation mileage, the operation frequency and the like in China are continuously improved, the construction of expressways is more and more, most expressways are in sections with rare people, the expressways need to cross mountains and mountains to be provided with tunnels, and for the positions of laying bridges among the tunnels, jacks are generally adopted to be combined with cushion blocks when laying falling beams, and the beam falling construction is completed by 20mm each time.

However, the traditional beam falling construction period is long, and much time is consumed, so that the construction efficiency is low.

Therefore, it is necessary to provide a new beam falling device for use in a tunnel to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a roof beam that falls stability is good, safe and reliable, and the roof beam is fast that just falls, a roof beam equipment that falls that is used for in the tunnel that efficiency of construction is high.

In order to solve the technical problem, the utility model provides a pair of a roof beam equipment that falls for in tunnel includes: two upright posts; the two longitudinal beams are respectively and fixedly arranged at the tops of the corresponding upright columns; the two pull rods are fixedly arranged on one sides, far away from each other, of the two stand columns respectively, the two pull rods are arranged obliquely, and one ends, far away from the stand columns, of the two pull rods are anchored with the ground; the two beam falling structures are respectively and fixedly arranged at the tops of the corresponding longitudinal beams, and the same beam falling structure comprises a distribution beam, a leveling plate, two lowering jacks, two steel strands and two anchors; the steel box girder is positioned between the two upright posts, and the four anchors are fixedly arranged at the top of the steel box girder; the fixing structure comprises a cable drum, a motor, a steel wire rope, a fixed pulley and a fixing ring.

Preferably, the distributing beams are fixedly mounted on the tops of the two longitudinal beams, the leveling plates are fixedly mounted on the tops of the two distributing beams, the lowering jacks are fixedly mounted on the tops of the same leveling plates, the steel strands are fixedly mounted on the output ends of the lowering jacks, and one ends, far away from the lowering jacks, of the four steel strands are fixedly connected with the corresponding anchors respectively.

Preferably, the cable drums are fixedly mounted at the tops of the two longitudinal beams, cable shafts are rotatably mounted on the two cable drums, the motors are fixedly mounted on the two cable drums, output shaft ends of the two motors are fixedly connected with the corresponding cable shafts respectively, and the steel wire ropes are wound on the two cable shafts.

Preferably, two equal fixed mounting in one side that the stand is close to each other has the fixed pulley, the equal fixed mounting in both sides of steel box girder has fixed ring, two wire rope keeps away from the one end of a stranded cable section of thick bamboo runs through corresponding respectively the fixed pulley, two wire rope keeps away from the one end of a stranded cable section of thick bamboo respectively with corresponding fixed ring is connected.

Preferably, one side of the pull rod, which is close to the upright post, is fixedly provided with two support rods, and one ends of the two support rods, which are far away from the pull rod, are fixedly arranged on the upright post.

Preferably, two first through holes are formed in the tops of the two longitudinal beams, and the four steel strands penetrate through the corresponding first through holes respectively.

Preferably, the top of each of the two longitudinal beams is provided with a second through hole, and the two steel wire ropes respectively penetrate through the corresponding second through holes.

Compared with the prior art, the utility model provides a pair of a roof beam equipment that falls for in tunnel has following beneficial effect:

the utility model provides a roof beam equipment that falls for in tunnel utilizes four transfer the effect of jack, through four steel strand wires and four the cooperation of ground tackle, it is right the steel case roof beam hangs down and puts, starts two simultaneously motor corotation work, two the motor drives the stranded cable section of thick bamboo rotates, wire rope winds out outside the stranded cable section of thick bamboo, utilizes the direction and the location of fixed pulley, make wire rope follows the steel case roof beam carries out the downstream to keep the tensile force, utilize wire rope is right the steel case roof beam carries out the steady hanging downwards and puts, thereby makes the steel case roof beam stabilizes and hangs, and the motion is more steady quick, and work efficiency is high, safe and reliable.

Drawings

Fig. 1 is a schematic structural diagram of a preferred embodiment of a beam falling device for use in a tunnel according to the present invention;

fig. 2 is an enlarged schematic view of a portion a shown in fig. 1.

Reference numbers in the figures: 1. the device comprises an upright post, 2, longitudinal beams, 3, a pull rod, 4, a distribution beam, 5, a leveling plate, 6, a downward-placing jack, 7, a steel strand, 8, an anchorage device, 9, a steel box beam, 10, a stranded cable barrel, 11, a motor, 12, a steel wire rope, 13, a fixed pulley, 14 and a fixing ring.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and embodiments.

Please refer to fig. 1 and fig. 2 in combination, wherein fig. 1 is a schematic structural diagram of a preferred embodiment of a beam falling apparatus for use in a tunnel according to the present invention; fig. 2 is an enlarged schematic view of a portion a shown in fig. 1. A beam falling apparatus for use in a tunnel includes: two upright posts 1; the two longitudinal beams 2 are respectively and fixedly arranged at the tops of the corresponding upright posts 1; the two pull rods 3 are respectively and fixedly installed on one sides, away from each other, of the two upright posts 1, the two pull rods 3 are obliquely arranged, and one ends, away from the upright posts 1, of the two pull rods 3 are anchored with the ground; the two beam falling structures are respectively and fixedly arranged at the tops of the corresponding longitudinal beams 2, and the same beam falling structure comprises a distribution beam 4, a leveling plate 5, two lowering jacks 6, two steel strands 7 and two anchors 8; the steel box girder 9 is positioned between the two upright posts 1, and the four anchors 8 are all fixedly arranged at the top of the steel box girder 9; the two stabilizing structures are respectively and fixedly arranged at the tops of the corresponding longitudinal beams 2, and the same stabilizing structure comprises a stranded cable drum 10, a motor 11, a steel wire rope 12, a fixed pulley 13 and a fixing ring 14.

The distributing beam 4 is fixedly mounted at the top of each longitudinal beam 2, the leveling plate 5 is fixedly mounted at the top of each distributing beam 4, the lowering jacks 6 are fixedly mounted at the top of each leveling plate 5, the steel strands 7 are fixedly mounted at the output ends of the lowering jacks 6, and one ends, far away from the lowering jacks 6, of the four steel strands 7 are fixedly connected with the corresponding anchorage devices 8 respectively.

The top of each longitudinal beam 2 is fixedly provided with the corresponding cable twisting barrel 10, the cable twisting shafts are rotatably arranged on the two cable twisting barrels 10, the motors 11 are fixedly arranged on the two cable twisting barrels 10, the output shaft ends of the two motors 11 are fixedly connected with the corresponding cable twisting shafts respectively, and the steel wire ropes 12 are wound on the two cable twisting shafts.

Two equal fixed mounting in one side that stand 1 is close to each other has fixed pulley 13, the equal fixed mounting in both sides of steel box girder 9 has fixed ring 14, two wire rope 12 is kept away from the one end of a stranded cable section of thick bamboo 10 runs through corresponding respectively fixed pulley 13, two wire rope 12 is kept away from the one end of a stranded cable section of thick bamboo 10 respectively with corresponding fixed ring 14 is connected.

The pull rod 3 is close to one side of the upright post 1 is fixedly provided with two support rods, and one ends of the two support rods 14 far away from the pull rod 13 are fixedly arranged on the upright post.

Two first through holes are formed in the tops of the two longitudinal beams 2, and the four steel strands 7 penetrate through the corresponding first through holes respectively.

Second through holes are formed in the tops of the two longitudinal beams 2, and the two steel wire ropes 12 penetrate through the corresponding second through holes respectively.

The utility model provides a pair of a theory of operation that is used for roof beam equipment that falls in tunnel as follows:

the type of the lowering jack 6 is a TX-100-J straight-through lowering jack, the steel strand 7 is a high-strength low-relaxation prestressed steel strand with the nominal diameter of 15.24mm, the tensile strength of 1860N/mm2, the breaking tension of 260.7KN, the minimum load of 221.5KN when the elongation rate is 1%, the weight of each meter is 1.1Kg, the steel strand 7 conforms to the international standard ASTMA 416-87 a, the motor 11 is a Y112M-4 motor capable of rotating forwards and backwards, the steel wire rope 12 is 6 + 37+ FC, a hydraulic pump station and a control box are fixedly installed on a beam falling bracket in the tunnel, the lowering jack 6, the hydraulic pump station and the control box form a hydraulic loop, the control box controls the starting and stopping of the lowering jack 6, the lowering jack 6 is provided with a one-way hydraulic lock and a stall-prevention lowering device, unexpected power failure occurs in construction, and the lowering jack 6 is provided with a one-way hydraulic lock and a stall-prevention lowering device, The automatic synchronous self-locking of the system can be ensured when the oil pipe is broken, the structure is stably stopped at a certain height without falling, the two upright posts 1 are fixedly provided with control switches and external power lines, the motor 11, the control switches and the external power lines are electrically connected in sequence to form a closed loop, the control switches control the starting, stopping and positive and negative rotation of the motor 11, during construction, the four steel strands 7 are matched with the four anchorage devices 8 under the action of the four lowering jacks 6 to lift and lower the steel box girder 9 downwards, the two motors 11 are started to work in positive rotation at the same time, the two motors 11 drive the stranded cable barrel to rotate, the steel wire rope 12 winds out of the stranded cable barrel, and the steel wire rope 12 moves downwards along with the steel box girder 9 by utilizing the guiding and positioning of the fixed pulley 13, and the tension force is kept, when the steel box girder 9 is hung downwards by using the steel wire rope 12, the steel box girder 9 is stably and downwards moved, so that the steel box girder 9 is stably hung and placed, the movement is more stable and quick, the working efficiency is high, and the operation is safe and reliable.

the utility model provides a roof beam equipment that falls for in tunnel utilizes four transfer the effect of jack 6, through four steel strand wires 7 and four ground tackle 8's cooperation is right steel case roof beam 9 hangs down and puts, starts two simultaneously motor 11 corotation work, two motor 11 drives the cable section of thick bamboo rotates, wire rope 12 winds out outside the cable section of thick bamboo, utilizes fixed pulley 13's direction and location make wire rope 12 along with steel case roof beam 9 carries out the downstream to keep the tensile force, utilize wire rope 12 is right steel case roof beam 9 carries out the steady hanging downwards, thereby makes steel case roof beam 9 stabilizes and hangs, and the motion is more steady quick, and work efficiency is high, safe and reliable.

The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.

Claims

1. A beam falling device used in a tunnel is characterized by comprising:

two upright posts;

the two longitudinal beams are respectively and fixedly arranged at the tops of the corresponding upright columns;

the two pull rods are fixedly arranged on one sides, far away from each other, of the two stand columns respectively, the two pull rods are arranged obliquely, and one ends, far away from the stand columns, of the two pull rods are anchored with the ground;

the two beam falling structures are respectively and fixedly arranged at the tops of the corresponding longitudinal beams, and the same beam falling structure comprises a distribution beam, a leveling plate, two lowering jacks, two steel strands and two anchors;

the steel box girder is positioned between the two upright posts, and the four anchors are fixedly arranged at the top of the steel box girder;

the fixing structure comprises a cable drum, a motor, a steel wire rope, a fixed pulley and a fixing ring.

2. The beam falling equipment for the tunnel according to claim 1, wherein the distribution beam is fixedly mounted on the top of each of the two longitudinal beams, the leveling plate is fixedly mounted on the top of each of the two distribution beams, two lowering jacks are fixedly mounted on the top of the same leveling plate, the steel strand is fixedly mounted on the output end of each of the lowering jacks, and one ends of the four steel strands, which are far away from the lowering jacks, are fixedly connected with the corresponding anchorage devices respectively.

3. The beam falling device for the tunnel according to claim 1, wherein the cable drums are fixedly mounted at the tops of the two longitudinal beams, cable shafts are rotatably mounted on the two cable drums, the motors are fixedly mounted on the two cable drums, output shaft ends of the two motors are fixedly connected with the corresponding cable shafts respectively, and the steel wire ropes are wound on the two cable shafts.

4. The beam falling device for the tunnel according to claim 1, wherein the fixed pulleys are fixedly mounted on one sides of the two upright columns close to each other, the fixed rings are fixedly mounted on two sides of the steel box girder, one ends of the two steel wire ropes far away from the stranded cable cylinder respectively penetrate through the corresponding fixed pulleys, and one ends of the two steel wire ropes far away from the stranded cable cylinder are respectively connected with the corresponding fixed rings.

5. The beam falling device for the tunnel according to claim 1, wherein two support rods are fixedly installed on one side of the pull rod close to the upright, and both ends of the two support rods far away from the pull rod are fixedly installed on the upright.

6. The beam falling device for the tunnel according to claim 1, wherein two first through holes are formed in the tops of each of the two longitudinal beams, and the four steel strands penetrate through the corresponding first through holes respectively.

7. The beam falling device for the tunnel according to claim 1, wherein the top of each of the two longitudinal beams is provided with a second through hole, and the two steel wire ropes respectively penetrate through the corresponding second through holes.