CN222540428U - Tooling for dismantling the spiral machine of earth pressure shield machine in the tunnel - Google Patents

Abstract

The utility model relates to a tool for dismantling a screw machine of an earth pressure shield machine in a tunnel, which is applied in the technical field of tooling supporting shield machines, and solves the technical problem of difficulty in dismantling a screw machine in a tunnel. The utility model includes, from bottom to top, a trolley, a grid-type frame, and a hand chain hoist hung on the frame. A slide rail is fixed to the upper end of the frame along the axial direction of the tunnel, a slider is slidably provided on the slide rail, a lifting lug is fixed on the slider, a screw rod is rotatably provided on the frame, the screw rod passes through the slider and is threadedly connected with the slider, and the hand chain hoist is hung on the lifting lug. The utility model has the effect of safely and efficiently dismantling a screw machine in a limited space.

Description

Tool for disassembling in spiral machine hole of earth pressure shield machine

Technical Field

The utility model relates to the technical field of shield tunneling machine matched tools, in particular to a tool for disassembling a spiral hole of a soil pressure shield tunneling machine.

Background

The shield machine is one of core equipment in underground tunnel engineering construction, and is specially designed for stratum in the design process, so that the construction efficiency and the shield machine adaptability are considered, and the shield machine is specially designed. With the development of tunnel industry, the working condition of shield construction is more and more complex, and the machine is disassembled in the tunnel due to the narrow field.

As shown in fig. 7, an earth pressure shield machine relates to an in-tunnel demolishing machine, a screw machine 61 needs to be completely reserved for demolishing, and a shield machine shell 63 is destructively demolished. In the conventional screw machine 61 dismantling construction, hanging points are arranged on a shield machine shell 63 and a duct piece 62, the hand hoist 36 is hung on the hanging points, and the screw machine can be pulled out only by replacing the hanging points and using a plurality of hand hoists alternately.

The method has high risk and low efficiency. And designing a screw machine pulling-out tool aiming at the working conditions.

Disclosure of utility model

Aiming at the defects existing in the prior art, the utility model aims to provide a tool for disassembling a screw hole of a soil pressure shield machine, which has the advantages that the screw machine is safely and efficiently disassembled in a limited space.

The technical aim of the utility model is achieved by the technical scheme that the tool for disassembling the spiral hole of the earth pressure shield machine comprises a trolley, a grid-type frame and a chain block hung on the frame from bottom to top, wherein the upper end of the frame is fixedly provided with a sliding rail along the axial direction of a tunnel, a sliding block is slidably arranged on the sliding rail, a lifting lug is fixedly arranged on the sliding block, a screw is rotatably arranged on the frame, and the screw penetrates through the sliding block and is in threaded connection with the sliding block, and the chain block is hung on the lifting lug.

The screw machine has the advantages that the length of the screw machine is generally between 14 meters and 17 meters, the gravity center of the screw machine is located in the middle of the screw machine, the rear end of the screw machine is used as a supporting point through the frame and the chain block, the front end of the screw machine is located on the inner side of the main machine, and the screw machine needs to be pulled out backwards continuously. The frame and the chain block provide powerful supporting points for the screw machine, the lifting points are increased in a mode of replacing the mode of planting ribs and punching anchor rods on the pipe pieces, the safety of integral construction is improved, the difficulty of construction is reduced, the lifting lugs are designed to be in a sliding mode, the lifting points do not need to be replaced back and forth when the screw machine is pulled out, the efficiency is higher, and after the screw machine is pulled out, the pipe piece trolley is used for conveying out of a tunnel.

The frame is made of H-shaped steel by welding, a rotating seat is welded on the frame, the screw is rotationally connected in the rotating seat, and sleeves are welded at two ends of the screw beyond the frame.

The frame is made of general sectional materials in the market, the frame is simple and convenient to manufacture, complex machining is not needed, the screw rod penetrates through the sectional materials, the steel plate of the penetrated part of the sectional materials is thinner, the screw rod is difficult to support and stabilize, and the screw rod can be ensured to run more smoothly by welding the sleeve outside.

The vertical ladder stand and the horizontal platform are arranged on two sides of the frame, and the ladder stand and the platform are detachably fixed on the frame through bolts.

The arrangement achieves the effects that the conventional diameter of the earth pressure shield machine is between 6 meters and 10 meters, the height of the frame is 4-5 meters, the setting of the climbing ladder is convenient for workers to climb the station, and the manual operation of the chain block is further convenient. Cat ladder and platform and frame fixed connection replace current interim increase ladder, improve operating personnel's security.

The tunnel is further provided with support rods connected to two sides of the frame through welding, and support wheels which are abutted against the inner wall of the tunnel are arranged at the heads of the support rods.

The screw machine has the advantages that the screw machine has a weight of 20-40 tons, the weight is large, the generated shaking is very strong, the frame is relatively high, and the support rods and the support wheels are arranged to prevent the frame from toppling over.

The frame comprises an upper half section, a connecting section and a lower half section which are detachably connected, and the chain block is arranged on the upper half section.

The arrangement has the advantages that the diameter of the earth pressure shield machine is generally between 6 meters and 10 meters, and in order to ensure the universality of the frame, the integral height of the frame is changed by changing the length of the connecting section, so that the earth pressure shield machine is suitable for shield machines with different sizes.

The auxiliary supporting device comprises a temporary wheel, a connecting plate arranged on the temporary wheel, a jack welded and fixed on the connecting plate and a supporting plate fixed on a piston rod of the jack.

The screw machine has the advantages that when the screw machine is completely pulled out of the shield body, the front end lacks support, and the auxiliary support device plays a role in supporting the front end of the screw machine at the moment, so that the screw machine can conveniently transport out of a tunnel. The screw machine is obliquely disassembled into the main machine, and after the screw machine is pulled out, the screw machine is turned into a horizontal state. The jack is arranged, so that the posture of the screw machine can be conveniently adjusted.

Compared with the prior art, the utility model has the following beneficial effects:

1. The screw machine is dismantled in the hole, so that the screw machine is in airtight limited space operation, the screw machine is heavy, and the safety of operation is higher through the tool;

2. In the process of pulling out the screw machine, the change number of times of hoisting point is reduced, the step of intermediate transition is reduced, and the efficiency of construction is faster.

Drawings

Fig. 1 is a schematic overall structure of the present embodiment;

FIG. 2 is an enlarged view at A in FIG. 1;

FIG. 3 is a schematic view showing the structure of the slide rail, the slide block and the screw in this embodiment;

FIG. 4a is a schematic view of the structure of the screw machine assembled with the present embodiment prior to extraction;

FIG. 4b is a schematic view of the screw machine assembled with the present embodiment after being pulled out

Fig. 5 is a schematic structural view showing a support rod and a ladder stand according to the present embodiment;

FIG. 6 is a schematic view showing the structure of the auxiliary supporting device according to the present embodiment;

Fig. 7 is a schematic diagram of the background art.

The device comprises a frame 1, a ladder 11, a platform 12, a 2, a pipe piece trolley 31, lifting lugs 32, sliding rails 33, sliding blocks 34, screws 35, sleeves 36, a chain block 41, supporting wheels 42, supporting rods 5, auxiliary supporting devices 51, temporary wheels 52, jacks 53, supporting plates 54, connecting plates 61, a screw machine 62, pipe pieces 63 and a shell.

Detailed Description

The utility model is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present utility model, and are not intended to limit the scope of the present utility model.

1-4, The tool for disassembling the spiral machine hole of the earth pressure shield machine comprises a pipe piece trolley 2, a frame 1 temporarily welded on the pipe piece trolley 2 and a lifting lug 31 arranged on the frame 1, wherein the pipe piece trolley 2 is matched equipment in tunnel construction, and is not customized additionally. The frame 1 is integrally formed into a grid shape, specifically a cuboid frame 1, and the frame 1 is formed by welding H-shaped steel. The upper end of the frame 1 is provided with two groups of sliding rails 32 along the axial direction of the tunnel (namely the moving direction of the trolley in the drawing), the sliding rails 32 are internally and slidably provided with sliding blocks 33, lifting lugs 31 and the sliding blocks 33 are welded and fixed, and the section of the sliding blocks 33 is in a trapezoid shape, so that the sliding blocks 33 are prevented from falling. Screw 34 is arranged between the slide rails 32, the screw 34 is in threaded connection with the sliding block 33, both ends of the screw penetrate through the frame 1, a sleeve 35 is welded on the frame 1, and the screw 34 is in rotary connection with the sleeve 35.

Referring to fig. 1-4, when screw 34 is turned, slider 33 and lifting lug 31 slide on slide rail 32. When the screw machine 61 is pulled out, a lifting point and the chain block 36 are arranged in the main machine, the chain block 36 pulls the front section of the screw machine 61, at the moment, the segment trolley 2 and the frame 1 are moved to the rear end of the screw machine 61, the wheels of the segment trolley 2 are further locked, construction risks caused by shaking of the segment trolley 2 are avoided, finally, the chain block 36 is hung on the lifting lug 31, and the chain block 36 pulls the rear section of the screw machine 61. Removing the bolts between the bolt machine and the host machine, rotating the screw 34, driving the lifting lug 31 to move to the limit position (the movement range is 1.5m-2 m) by the screw 34, replacing the lifting point at the front end of the screw machine 61 at the moment, and after the screw machine 61 is pulled out for 1.5-2m, adjusting the posture of the screw machine 61 at the moment (adjusting to the horizontal direction), unlocking the segment trolley 2, moving the segment trolley 2, and pulling out the screw machine 61 slowly at a bit.

Referring to fig. 4, a plurality of other welding type lifting lugs are fixedly welded on the frame 1 for hanging more chain blocks 36, and the screw 61 is hung or the posture of the screw 61 is adjusted.

Referring to fig. 4-6, the tool of the present invention further includes an auxiliary supporting device 5, when the center of gravity of the screw machine 61 is separated from the shield tail, the auxiliary supporting device 5 is installed at the front end of the center of gravity of the screw machine 61, and the screw machine 61 is supported by the auxiliary supporting device 5, so that the hanging point does not need to be replaced. The auxiliary supporting device 5 includes a temporary wheel 51, a connection plate 54 provided on the temporary wheel 51, a jack 52 welded to the connection plate 54, and a supporting plate 53 fixed to a piston rod of the jack 52. The jack 52 and the support plate 53 are provided in two, the positions being in mirror image relationship. The jack 52 is used for adjusting the height of the supporting plate 53, and can cope with complex working conditions on site and better support the screw machine 61.

Referring to fig. 5, since the height of the frame 1 is at least 4-5m, it is difficult for a worker to reach the top of the frame 1 to operate, and thus, a vertical ladder stand 11 and a horizontal platform 12 are provided at both sides of the frame 1, and the ladder stand 11 and the platform 12 are detachably fixed to the frame 1 by bolts, so that the frame 1 is convenient to be independently shipped after being detached.

Referring to fig. 5, the frame 1 is connected at both sides thereof with support bars 42 by welding, and the heads of the support bars 42 are provided with support wheels 41 abutting on the inner wall of the tunnel. After the screw 61 is dismantled and transported to the ground, the supporting rods 42 are separated from the frame 1 by a carbon plane or flame cutting, the supporting rods 42 with different lengths are selected according to the sizes of different tunnels, the lengths of the supporting rods 42 are welded on site, and the supporting rods 42 are 100mm H-shaped steel.

Referring to fig. 5, the frame 1 includes an upper half section, a connecting section, and a lower half section detachably connected, and a chain block 36 is provided on the upper half section. The excavation diameter of the earth pressure shield machine is generally 6-10m, the whole height of the frame 1 is increased or decreased according to the size of a tunnel, and the length of the connecting section is replaced at the moment.

The implementation principle of the embodiment is that the frame 1 is used as a movable support of the rear end of the screw machine 61, so that the number of times of replacing a hanging point in the process of pulling out the screw machine 61 is reduced, and safer and more reliable in the process of pulling out the screw machine 61 is ensured.

The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and variations could be made by those skilled in the art without departing from the technical principles of the present utility model, and such modifications and variations should also be regarded as being within the scope of the utility model.

Claims (6)

1. The tool for disassembling the spiral machine hole of the earth pressure shield machine is characterized by comprising a trolley, a grid-type frame (1) and a chain block (36) hung on the frame (1) from bottom to top in sequence, wherein a slide rail (32) is fixed at the upper end of the frame (1) along the axial direction of a tunnel, a slide block (33) is arranged on the slide rail (32) in a sliding manner, a lifting lug (31) is fixedly arranged on the slide block (33), a screw (34) is rotatably arranged on the frame (1), the screw (34) penetrates through the slide block (33) and is in threaded connection with the slide block (33), and the chain block (36) is hung on the lifting lug (31).

2. The tool for disassembling the soil pressure shield machine spiral machine hole according to claim 1, wherein the frame (1) is specifically made of H-shaped steel by welding, a rotating seat is welded on the frame (1), the screw (34) is rotatably connected in the rotating seat, and sleeves (35) are welded at two ends of the screw (34) beyond the frame (1).

3. The tool for disassembling the spiral machine hole of the earth pressure shield machine of claim 1, wherein two sides of the frame (1) are provided with a vertical ladder stand (11) and a horizontal platform (12), and the ladder stand (11) and the platform (12) are detachably fixed on the frame (1) through bolts.

4. The tool for disassembling the spiral machine hole of the earth pressure shield machine according to claim 1, wherein the two sides of the frame (1) are connected with supporting rods (42) through welding, and the heads of the supporting rods (42) are provided with supporting wheels (41) which are abutted against the inner wall of the tunnel.

5. The tool for disassembling the spiral hole of the earth pressure shield machine according to claim 1, wherein the frame (1) comprises an upper half section, a connecting section and a lower half section which are detachably connected, and the chain block (36) is arranged on the upper half section.

6. The tool for disassembling the soil pressure shield machine screw machine hole according to claim 1, further comprising an auxiliary supporting device (5), wherein the auxiliary supporting device (5) comprises a temporary wheel (51), a connecting plate (54) arranged on the temporary wheel (51), a jack (52) welded and fixed on the connecting plate (54) and a supporting plate (53) fixed on a piston rod of the jack (52).