CN205393933U - Shield constructs dismouting device in quick -witted screw conveyer hole - Google Patents

Abstract

The utility model belongs to the technical field of tunnel shield machine excavation construction. A disassembly and assembly device for a screw conveyor tunnel of a shield machine, including a supporting portal frame and hoisting equipment arranged on the upper part of the supporting portal frame. The supporting portal frame includes two columns arranged in parallel on both sides of the tunnel and a horizontal On the crossbeams at the top of the two columns, the hoisting equipment is matched and arranged on the beams; the lower parts of the two columns are provided with bottom support frames. The utility model has the advantages of small space occupation in the disassembly process, convenient assembly and disassembly in a small space, and the advantages of being able to safely hoist and install relatively large structural parts. The utility model uses the hole disassembly screw conveyor for screw conveying To disassemble and assemble the machine, it is only necessary to add welding lifting lugs to the shield body and the screw conveyor, and use hoisting equipment such as adjustable chain hoists to reasonably match and work together to realize safe and stable disassembly and assembly of the screw conveyor in the cave.

Description

Assembly and disassembly device in the hole of the screw conveyor of the shield machine

technical field

The utility model belongs to the technical field of excavation and construction of a tunnel shield machine, and in particular relates to a disassembly and assembly device for a screw conveyor hole of a shield machine.

Background technique

At present, my country is in a period of rapid economic and technological development. Shield machines are special equipment for tunnel engineering, and their design and manufacturing capabilities reflect the comprehensive level of a country's equipment manufacturing industry. Therefore, research on the design and manufacture of shield machines and related construction technologies have significant value.

In the shield construction of existing underground tunnel projects at home and abroad, more and more projects adopt the method of dismantling and assembling in the tunnel. When the shield machine is disassembled and assembled, the previous cutting method will cause some parts to be irrecoverable. The damage will affect the construction efficiency and cause certain economic losses. As one of the key components of the shield machine, the screw conveyor is extremely important for disassembly or maintenance in the tunnel.

Therefore, there is an urgent need for an effective device or method for disassembling and assembling the screw conveyor in shield tunneling construction to ensure the smooth progress of assembly or disassembly maintenance.

Utility model content

The purpose of this utility model is to provide a disassembly device in the hole of the screw conveyor of the shield machine for the above-mentioned existing problems and deficiencies. It can meet the disassembly and installation of the screw conveyor in the hole by the shield machine, and ensure the safe and effective assembly, maintenance and disassembly of the screw conveyor in the hole.

In order to achieve the above purpose, the technical solutions adopted are:

A disassembly and assembly device for a screw conveyor tunnel of a shield machine, including a supporting portal frame and hoisting equipment arranged on the upper part of the supporting portal frame. The supporting portal frame includes two columns arranged in parallel on both sides of the tunnel and a horizontal On the crossbeams at the top of the two columns, the hoisting equipment is matched and arranged on the beams; the lower parts of the two columns are provided with bottom support frames.

The bottom support frame includes a lower side support arranged on both sides of the column and a support base plate arranged at the bottom of the lower side support, and the bottom of the two columns is also provided with a support base plate; the bottom of the support base plate is provided with A load-bearing foundation system, the load-bearing foundation system includes a ground foundation platform, multi-track sleepers laid on the ground foundation platform, and positioning steel plates arranged on the sleepers, and the corresponding pads are provided with sleepers directly under each supporting base plate, and The support base plate, the positioning steel plate and the sleeper are fixedly connected by bolts.

The hoisting equipment is a chain hoist or a crane.

The two columns both include an upper column and a lower column, the upper column and the lower column are detachably connected, and an upper side support is provided between the upper column and the shield machine.

Adopt above-mentioned technical scheme, the beneficial effect that obtains is:

The utility model has the advantages of small space occupation in the disassembly process, convenient assembly and disassembly in a small space, and the advantages of being able to safely hoist and install relatively large structural parts. The utility model uses the hole disassembly screw conveyor for screw conveying To disassemble and assemble the machine, it is only necessary to add welding lugs on the shield body and the screw conveyor, and use hoisting equipment such as adjustable chain hoists to reasonably match and work together to realize safe and stable disassembly and assembly of the screw conveyor in the cave. The utility model It provides convenience for the installation, disassembly and maintenance of the main engine in the cave, and also improves the construction efficiency.

Description of drawings

Figure 1 is a schematic structural view of the disassembly device in the hole.

Fig. 2 is a schematic diagram of the K-direction structure in Fig. 1 .

Fig. 3 is a schematic diagram of the position structure of the V-shaped beam.

Fig. 4 is a structural schematic diagram 1 of disassembling the screw conveyor by using the dismantling device in the hole.

Fig. 5 is a structural schematic diagram 2 of disassembling the screw conveyor by using the dismantling device in the hole.

Fig. 6 is a structural schematic diagram 3 of disassembling the screw conveyor using the dismantling device in the hole.

Serial numbers in the figure: 1 is the lower column, 2 is the upper column, 3 is the beam, 4 is the hoisting equipment, 5 is the lower side support, 6 is the support floor, 7 is the ground foundation platform, 8 is the sleeper, 9 is the positioning steel plate, 10 11 is a screw conveyor, 12 is a V-shaped beam, and 13 is a hoisting lug.

detailed description

The specific embodiment of the utility model is described in detail below in conjunction with accompanying drawing.

Referring to Fig. 1 and Fig. 2, a screw conveyor hole disassembly device of a shield machine includes a supporting portal frame and a hoisting device 4 arranged on the upper part of the supporting portal frame. The two columns on the side and the crossbeams arranged on the top of the two columns horizontally, the two columns all include an upper column 2 and a lower column 1, and the detachable and fixed connection between the upper column 2 and the lower column 1, such as Bolt connection, the upper side support 10 is set between the upper column 2 and the shield machine, and the hoisting equipment 4 is matched and arranged on the beam 3, and the hoisting equipment 4 is a chain hoist or a crane.

The bottom of the two columns is provided with a bottom support frame, and the bottom support frame includes a lower side support 5 arranged on both sides of the column and a support base plate 6 arranged at the bottom of the lower side support 5. The two columns The bottom is also provided with a support base plate 6; a load-bearing foundation system is arranged at the bottom of the support base plate 6, and the load-bearing base system includes a ground foundation platform 7, a multi-track sleeper 8 laid on the ground foundation platform and a set The positioning steel plate 9 on the sleeper, the right underside of each supporting base plate 6 is all correspondingly provided with the sleeper 8, and the supporting base plate 6, the positioning steel plate 9 and the sleeper 8 are fixedly connected by bolts.

Referring to Fig. 1-Fig. 6, the method for disassembling and disassembling the device in the hole of the utility model comprises the following steps:

①Recover the screw of the screw conveyor of the shield machine, disconnect the equipment bridge from the main engine, and all electrical, fluid, and hydraulic lines of the screw conveyor, and place them properly in bundles, so that the distance between the equipment bridge and the main engine is 8~20m, and support and fix them device bridge;

②Remove the V-beam 12 of the segment installation machine, and properly place the hydraulic, fluid and electrical pipelines passing through the V-beam 12 on both sides to avoid friction and collision when disassembling the screw conveyor;

③Fixly install the dismantling device in the hole at the rear end of the screw conveyor 11, hang and connect the hoisting equipment 4 on the dismantling device in the hole with the screw conveyor 11, and connect the screw conveyor 11 with the screw conveyor 11. A plurality of groups of corresponding hoisting lugs 13 are welded on the shield body, and hoisting equipment 4 is arranged between each group of corresponding hoisting lugs 13, and the hoisting equipment 4 is started so that the hoisting equipment 4 is in a tensioned pre-stressed state;

④ Disassemble the connecting bolts between the screw conveyor 11 and the front shield, first loosen all the connecting bolts by 1~2mm, then reserve 4~6 corresponding connecting bolts, and remove all the remaining connecting bolts; the removal process of the connecting bolts In the middle, observe the force condition of each lifting point, and make timely adjustments to avoid force overload or displacement of the screw conveyor swing. When the force of the screw conveyor is stable, remove the reserved connecting bolts;

⑤ Move the screw conveyor 11 outward, gradually tighten the hoisting equipment 4 on the dismantling device in the cave, and simultaneously release multiple hoisting equipment between the screw conveyor and the shield body, and complete the preliminary installation between the screw conveyor and the front shield. Separation; after a certain distance is separated, the screw conveyor 11 is laid flat by reasonable matching and tightening or releasing of hoisting equipment in different positions;

⑥ Completely move the screw conveyor 11 out of the main machine of the shield machine by making the lower traversing support at the bottom of the horizontal screw conveyor, or through the disassembly and assembly device in the traversing hole to cooperate with the tightening or releasing of the hoisting equipment; The disassembly process of the conveyor and the installation process of the screw conveyor can be reversed according to the above steps.

In this embodiment, as shown in Figure 4, two hoisting points A and B are provided on the front and rear sides of the crossbeam of the dismounting device in the hole, and hoisting points C and D are welded on the shield body. Corresponding hoisting points E, F, G, H, I are set on the conveyor, and the lifting points at different positions are reasonably matched and used in different sections to optimize the stress stability of the whole system, so that the screw conveyor can Move out smoothly and lay flat, so as to achieve the purpose of fast and safe disassembly and assembly.

The basic principles, main features and advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions describe only the principle of the utility model. There will be various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The protection scope required by the utility model is defined by the appended claims and their equivalents.

Claims (4)

1. attaching/detaching apparatus in the helical feed auger of a shield machine, it is characterized in that: include supporting door frame and being arranged on the hanging device supporting door frame top, the described door frame that supports includes being set in parallel in two root posts of both sides, tunnel and being horizontally installed on the crossbeam at two root post tops, and described hanging device coupling is arranged on crossbeam；Two described root post bottoms are provided with bottom support frame.

2. attaching/detaching apparatus in the helical feed auger of shield machine according to claim 1, it is characterized in that: described bottom support frame includes being arranged on the lower side of column both sides and supports and be arranged on the support baseboard bottom lower side support, is also provided with support baseboard bottom two described root posts；Described support baseboard bottom is provided with load foundational system, described load foundational system includes ground base platform, be laid on ground base platform multiple tracks sleeper and the fixing steel plate being arranged on sleeper, the all corresponding pad in the underface of each support baseboard is provided with sleeper, and is bolted to connection between support baseboard, fixing steel plate and sleeper.

3. attaching/detaching apparatus in the helical feed auger of shield machine according to claim 1, it is characterised in that: described hanging device is chain block or loop wheel machine.

4. attaching/detaching apparatus in the helical feed auger of shield machine according to claim 1, it is characterized in that: two described root posts all include upper pillar stand and lower pillar stand, it is detachably fixed between described upper pillar stand and lower pillar stand and is connected, be provided with upper side between described upper pillar stand and shield machine and support.