Muck collecting device and method for large shield machines

Abstract

The application discloses a muck collecting device and method for a large shield machine, and aims to solve the technical problem that the muck is prone to gushing from the gate of the existing screw conveyor of the shield machine during construction. Mainly includes the lifting mechanism arranged at the gate of the screw conveyor and the muck bucket installed on the lifting mechanism; the lifting mechanism includes a roller, the roller extends to both sides through an installation plate arranged on the screw conveyor to form an extension part, and a lifting chain for lifting the muck bucket is arranged on the extension part; the muck bucket is an arc muck bucket, the arc of which is matched with the segment arc, so that the installation of the muck bucket by a segment assembling machine is facilitated. The muck collecting device is arranged at the gate of the screw conveyor, so that the muck is prevented from gushing into the tunnel from the gate of the screw conveyor, and the height of the muck bucket is adjusted by the lifting mechanism, so that the gushing prevention effect of the device is further ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of shield machine conveying equipment, in particular to a muck collecting device and method for large shield machine. BACKGROUND

[0002] The shield machine, full name shield tunnel boring machine, is a special engineering machinery for tunneling. The modern shield tunneling machine integrates light, machine, electricity, liquid, sensing and information technology, has the functions of excavating and cutting soil, conveying soil, assembling tunnel lining, measuring and guiding, and correcting deviation, and involves geology, civil engineering, machinery, mechanics, hydraulic pressure, electricity, control, measurement and other disciplines. Moreover, it needs to be designed and manufactured according to different geologies, and has high reliability requirements. The shield tunneling machine has been widely used in subway, railway, highway, municipal and water and electricity tunnel engineering.

[0003] At present, underground engineering is developing rapidly in China, and more and more urban subways and highway tunnels need super-large shield tunnels. There are more and more large shield construction projects in China. During the tunneling process of large shield machine, construction technical problems are gradually revealed. At present, when the screw conveyor is used to transport muck during the tunneling process of large shield machine, the muck is prone to spout. The spouted muck will fall into the tunnel. If the muck is cleaned and transported manually in the later stage, the tunneling process time will be lengthened, the cleaning speed will be slow, the labor cost will be high, and the construction environment in the tunnel will be poor. The existing technology also lacks a special cleaning device suitable for shield construction environment. SUMMARY

[0004] The purpose of the present application is to provide a muck collecting device and method for large shield machine, to solve the technical problems of easy muck spouting and difficult cleaning and transportation during shield construction.

[0005] To solve the above technical problems, the present application adopts the following technical scheme:

[0006] A muck collecting device for large shield machine is designed, which mainly comprises a lifting mechanism arranged at the gate of the screw conveyor and a muck bucket mounted on the lifting mechanism;

[0007] The lifting mechanism comprises a roller, the roller extends to both sides through a mounting plate arranged on the screw conveyor to form an extension part, and a lifting chain for lifting the muck bucket is arranged on the extension part;

[0008] The muck bucket is an arc muck bucket, the arc of which is matched with the arc of the segment, so as to facilitate the installation of the muck bucket by using the segment assembling machine.

[0009] The lifting chain is preferably connected to the bucket through a hook; the extension part is fixedly provided with a gear rotating or stopping with the roller, and an installation rod connected to the screw conveyor is arranged above the extension part, a clamping block is sleeved on the installation rod, and the clamping block comprises a meshing part meshing with the gear and a supporting part supporting the gear.

[0010] The hook preferably comprises a hook body and an elastic column elastically connected to the hook body and used for opening or closing the hook, a threaded part is arranged on the elastic column, and a second threaded sleeve is matched with the threaded part to make the hook more tightly closed, so as to enhance the safety of the hook.

[0011] The application discloses a bucket for a large shield tunneling machine, which mainly comprises a lifting mechanism arranged at a gate of a screw conveyor and a bucket installed on the lifting mechanism.

[0012] The lifting mechanism comprises a telescopic column arranged at the gate of the screw conveyor, and the telescopic column is a sleeve type telescopic column comprising a fixed column connected to the screw conveyor and a movable column connected to the bucket.

[0013] The bucket is an arc bucket, and the arc of the bucket is matched with the arc of a segment, so that the bucket can be installed by using a segment assembling machine.

[0014] The telescopic column preferably further comprises a first threaded sleeve used for adjusting the telescopic column, outer threads are arranged on the fixed column and the movable column, inner threads are arranged on the first threaded sleeve and matched with the outer threads, the telescopic column is telescoped through the threaded matching, and the movable column is connected to the bucket through a hook.

[0015] The fixed column is internally provided with a cavity in which the movable column is placed, a plurality of first through holes are formed in the fixed column, a plurality of second through holes corresponding to the first through holes are formed in the movable column, and the telescopic column is telescoped and fixed through an adjusting screw passing through the through holes; and the movable column is connected to the bucket through a hook.

[0016] The hook preferably comprises a hook body and an elastic column elastically connected to the hook body and used for opening or closing the hook, a threaded part is arranged on the elastic column, and a second threaded sleeve is matched with the threaded part to make the hook more tightly closed, so as to enhance the safety of the hook.

[0017] The application discloses a bucket for a large shield tunneling machine, which mainly comprises a lifting mechanism arranged at a gate of a screw conveyor and a bucket installed on the lifting mechanism.

[0018] The lifting mechanism comprises a telescopic rod arranged at the gate of the screw conveyor, the telescopic rod comprises an upper rod and a lower rod hinged to each other, the upper rod is hinged to the screw conveyor, and the lower rod is connected to the slag bucket;

[0019] The slag bucket is an arc-shaped slag bucket, and the arc is matched with the segment arc to facilitate installation of the slag bucket by using a segment erector.

[0020] Preferably, a buffer spring is arranged at the hinge of the upper rod and the lower rod, and the lower rod is connected to the slag bucket through a hook.

[0021] Preferably, the hook comprises a hook body and an elastic column elastically connected to the hook body and used for opening or closing the hook, a threaded portion is arranged on the elastic column, and a second threaded sleeve matched with the threaded portion is used to make the hook more tightly closed, so that the safety is enhanced.

[0022] A slag collecting method is designed, the slag collecting device is arranged at the gate of the screw conveyor to collect the slag or / and the slurry falling from the gate.

[0023] Compared with the prior art, the beneficial technical effects of the present application are that:

[0024] 1. The present application sets the slag collecting device at the gate of the screw conveyor to prevent the slag from spouting into the tunnel from the gate of the screw conveyor, and adjusts the height of the slag bucket through the lifting mechanism, so that the spouting prevention effect of the device is further ensured.

[0025] 2. The present application sets the chain to pull the slag bucket, and when not working, the slag bucket can be pulled close to the screw conveyor to prevent affecting other construction work. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The figure is a structural schematic diagram of one embodiment of the present application installed on a screw conveyor.

[0027] Figure 2 The figure is a structural schematic diagram of one embodiment of the present application.

[0028] Figure 3 The figure is a structural schematic diagram of one embodiment of the present application. Figure 2 The figure is an enlarged view of part A in the present application.

[0029] Figure 4 The figure is a structural schematic diagram of a telescopic column of one embodiment of the present application.

[0030] Figure 5 The figure is a structural schematic diagram of a telescopic column of one embodiment of the present application.

[0031] Figure 6Structure diagram of the hook opening of an embodiment of the present application.

[0032] Figure 7 Structure diagram of the hook closing of an embodiment of the present application.

[0033] In the above figures, 1 is a mounting plate, 2 is a roller, 21 is a gear, 3 is a mounting rod, 31 is a clamping block, 311 is an engaging portion, 312 is a blocking portion, 4 is a lifting chain, 5 is a slag bucket, 45 is a hook, 41 is a hook body, 42 is an elastic column, 421 is a threaded portion, 43 is a second threaded sleeve, 6 is an extension column, 61 is a fixed column, 611 is a first through hole, 62 is a movable column, 621 is a second through hole, 63 is a first threaded sleeve, 7 is a screw conveyor, 71 is a gate, and 8 is a lifting mechanism. DETAILED DESCRIPTION

[0034] The specific embodiments of the present application will be described below in conjunction with the accompanying drawings and examples, but the following examples are only used to illustrate the present application in detail and do not limit the scope of the present application in any way.

[0035] In the description of the technical solutions of the present application, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. The present application, if referring to "first", "second", etc., is used to distinguish similar objects, and is not limited to a specific order or sequence.

[0036] In the following examples, the unit modules (parts, structures, mechanisms) involved, unless otherwise specified, are all conventional commercially available products.

[0037] Example 1: A slag collecting device for a large shield machine, referring to Figure 1 、 Figure 2 、 Figure 3 、 Figure 6 、 Figure 7The system includes a lifting mechanism 8 mounted on a screw conveyor 7 and a slag hopper 5 mounted on the lifting mechanism 8. The lifting mechanism 8 includes rollers 2 mounted on the left and right sides of the gate 71 of the screw conveyor 7. The rollers 2 extend to both sides through the mounting plate 1 mounted on the screw conveyor 7 and can rotate. A gear 21 is fixedly mounted at the open end of the extension, so that the gear 21 rotates with the roller 2. Conversely, when the gear 21 stops rotating, it will stop the rotation of the roller 2. A mounting rod 3 is fixedly connected to the housing of the screw conveyor 7 above the extension. A movable locking block 31 is sleeved on the mounting rod 3. The locking block 31 has a meshing part 311 that meshes with the gear 21 and a supporting part 312 that supports the gear 21, so as to support the gear 21 and stop the gear 2 from driving the roller 2. The extension is fixedly connected to a chain. When the roller 2 rotates, the chain can be wound up or unwound. A hook 45 is installed at the end of the chain. The hook 45 is hooked onto the hanging ring of the slag hopper 5, so that the slag hopper 5 is suspended by four chains with hooks 45. When slag falls at the gate 71, it will be collected by the slag hopper 5 to prevent slag from falling into the tunnel. The slag hopper 5 is an arc-shaped slag hopper 5, the arc of which matches the arc of the tunnel segment to facilitate the installation of the slag hopper 5 using the tunnel segment assembly machine. The hook 45 includes a hook 45 body and an elastic post 42 elastically connected to the hook 45 body for opening or closing the hook 45. Both the elastic post 42 and the hook 45 body directly above it are provided with threaded parts 421. The hook 45 is closed more tightly by a second threaded sleeve 43 that cooperates with the threaded parts 421 to enhance its safety.

[0038] Example 2: Unlike Example 1, the lifting chain 4 is directly connected to the screw conveyor 7, and the slag hopper 5 is connected through the lifting chain 4 for slag collection.

[0039] Example 3: A slag collection device for a large tunnel boring machine. Unlike Example 1, the slag hopper 5 does not have a hanging ring. Instead, through holes are provided on both sides of the slag hopper 5 at positions corresponding to the hooks 45, so that the hooks 45 can be hooked onto the slag hopper 5 through the through holes to achieve the purpose of suspending the slag hopper 5.

[0040] Example 4: A spoil collection device for large tunnel boring machines, see [link to example]. Figure 4The system includes a lifting mechanism 8 mounted on a screw conveyor 7 and a slag hopper 5 mounted on the lifting mechanism 8. The lifting mechanism 8 includes telescopic columns 6 fixed to both sides of the screw conveyor 7 housing, two on each side. Each telescopic column 6 is a sleeve-type telescopic column 6, comprising a fixed column 61 fixed to the screw conveyor 7 housing, a movable column 62 cooperating with the fixed column 61, and a first threaded sleeve 63 for height adjustment. Both the fixed column 61 and the movable column 62 are provided with external threads, and the first threaded sleeve 63 has an internal thread that mates with the external threads to achieve telescopic movement. A hook 45 is provided at the bottom of the column 62. The hook 45 includes a hook 45 body and an elastic column 42 for opening or closing the hook 45, which is elastically connected to the hook 45 body. The elastic column 42 is provided with a threaded part 421, and the hook 45 is closed more tightly by a second threaded sleeve 43 that cooperates with the threaded part 421 to enhance its safety. The telescopic column 6 is connected to the slag hopper 5 through the hook 45 to facilitate the disassembly of the slag hopper 5 and facilitate slag dumping. The slag hopper 5 is an arc-shaped slag hopper 5, and its arc matches the arc of the tunnel segment to facilitate the installation of the slag hopper 5 using a tunnel segment assembly machine.

[0041] Example 5: A slag collection device for a large tunnel boring machine. Unlike Example 3, the movable column 62 is directly fixedly connected to the slag hopper 5. When the slag hopper 5 is full of slag, the slag hopper 5 can be directly removed through the movable column 62 for slag dumping.

[0042] Example 6: See Figure 5 Unlike embodiment 3, the fixed column 61 has a cavity for placing the movable column 62, and has four first through holes 611. The movable column 62 has a second through hole 621 corresponding to the first through holes, so that the adjusting screw passes through the first through hole 611 and the second through hole 621 and cooperates with the adjusting nut to adjust the extension and retraction of the telescopic column 6.

[0043] Example 7: A slag collection device for a large tunnel boring machine, comprising a lifting mechanism 8 mounted on a screw conveyor 7 and a slag hopper 5 mounted on the lifting mechanism 8. The lifting mechanism 8 includes telescopic rods fixed to both sides of the casing of the screw conveyor 7, two on each side. Each telescopic rod includes an upper rod and a lower rod hinged together. A buffer spring is provided at the hinge of the upper rod and the lower rod to provide a certain degree of protection. The upper rod is fixedly connected to the screw conveyor 7, and the lower rod is connected to a hook 45. The four telescopic rods form a four-bar linkage. The hook 45... 5 includes a hook 45 body and an elastic post 42 elastically connected to the hook 45 body for opening or closing the hook 45. The elastic post 42 is provided with a threaded part 421, and the hook 45 is closed more tightly by a second threaded sleeve 43 that cooperates with the threaded part 421 to enhance its safety. The telescopic rod is hooked to the slag hopper 5 through the hook 45 to facilitate the disassembly of the slag hopper 5 and facilitate slag dumping. The slag hopper 5 is an arc-shaped slag hopper 5, and its arc matches the arc of the tunnel segment to facilitate the installation of the slag hopper 5 using a tunnel segment assembly machine.

[0044] Example 8: A method for collecting construction waste, using the construction waste collection device described in Example 1 above, the device is installed at the gate 71 of the screw conveyor 7, and the drum 2 is rotated to a suitable height according to actual needs. After adjustment, the gear 21 is locked by the locking block 31 to fix the drum 2. After the tunnel boring machine stops construction, the drum 2 is rotated to retract the hopper 5 and fixed with the locking block 31. When the hopper 5 needs to be replaced, it is removed by the hook 45 and the hopper 5 can be replaced using the segment assembly machine.

[0045] Example 9: A method for collecting construction waste, using the construction waste collection device described in Example 3 above, the device is installed at the gate 71 of the screw conveyor 7, and the height is adjusted according to actual needs by means of the telescopic column 6. The height can be adjusted by rotating the first threaded sleeve 63. When it is necessary to replace the slag hopper 5, it is removed by means of the hook 45, and the slag hopper 5 can be replaced by means of the segment assembly machine.

[0046] Example 10: A method for collecting construction waste, using the construction waste collection device described in Example 6 above, the device is installed at the gate 71 of the screw conveyor 7, and the waste hopper 5 is lowered by a telescopic rod. When not in use, the waste hopper 5 can be retracted by the telescopic rod. Since the upper rod and lower rod, the upper rod and screw conveyor 7, and the lower rod and hook 45 are all hinged, the waste hopper 5 can be retracted without passing the gate 71 of the screw conveyor 7. When the waste hopper 5 needs to be replaced, it is removed by the hook 45 and replaced by a segment assembly machine.

[0047] The present invention has been described in detail above with reference to the accompanying drawings and embodiments. However, those skilled in the art will understand that, without departing from the concept of the present invention, various specific parameters in the above embodiments can be changed, or relevant components, structures and materials can be equivalently substituted to form multiple specific embodiments. These are all common variations of the present invention and will not be described in detail here.

Claims

1. A device for collecting excavated soil from a large tunnel boring machine, characterized in that, It includes a lifting mechanism installed at the gate of the screw conveyor and a slag hopper installed on the lifting mechanism; The lifting mechanism includes a roller, which extends to both sides through a mounting plate on a screw conveyor, and the extension is provided with a lifting chain for lifting the slag hopper. The lifting chain is hooked to the slag hopper via a hook, and the slag hopper is hooked to the hook via a hanging ring; the extension is fixedly provided with a gear that rotates or stops with the drum, and an installation rod connected to the screw conveyor is provided above it; a locking block is sleeved on the installation rod, and the locking block includes a meshing part that meshes with the gear and a supporting part for supporting the gear; The slag hopper is an arc-shaped slag hopper, the arc of which matches the arc of the tunnel segment, so as to facilitate the installation of the slag hopper using a tunnel segment assembly machine; The hook includes a hook body and an elastic post for opening or closing the hook, which is elastically connected to the hook body. The elastic post is provided with a threaded portion, and a second threaded sleeve that cooperates with the threaded portion makes the hook close more tightly to enhance its safety.

2. A spoil collection device for large tunnel boring machines, characterized in that, It includes a lifting mechanism installed at the gate of the screw conveyor and a slag hopper installed on the lifting mechanism; The lifting mechanism includes a telescopic column installed at the gate of the screw conveyor. The telescopic column is a sleeve-type telescopic column, which includes a fixed column connected to the screw conveyor and a movable column connected to the slag hopper. The slag hopper is an arc-shaped slag hopper, the arc of which matches the arc of the tunnel segments, so as to facilitate the installation of the slag hopper using a tunnel segment assembly machine.

3. The slag collection device for large tunnel boring machines according to claim 2, characterized in that, The telescopic column also includes a first threaded sleeve for adjusting the telescopic column. The fixed column and the movable column are provided with external threads, and the first threaded sleeve is provided with an internal thread that mates with the external threads. The telescopic column is extended and retracted through the threaded engagement, and the movable column is hooked to the slag hopper via a hook.

4. The slag collection device for large tunnel boring machines according to claim 3, characterized in that, The fixed column has a cavity for placing the movable column, and has multiple first through holes. The movable column has multiple second through holes corresponding to the first through holes. The telescopic column is extended and fixed by adjusting screws passing through the through holes. The movable column is hooked to the slag hopper by hooks.

5. A spoil collection device for large tunnel boring machines, characterized in that, It includes a lifting mechanism installed at the gate of the screw conveyor and a slag hopper installed on the lifting mechanism; The lifting mechanism includes a telescopic rod installed at the gate of the screw conveyor. The telescopic rod includes an upper rod and a lower rod that are hinged to each other. The upper rod is hinged to the screw conveyor, and the lower rod is connected to the slag hopper. The slag hopper is an arc-shaped slag hopper, the arc of which matches the arc of the tunnel segments, so as to facilitate the installation of the slag hopper using a tunnel segment assembly machine.

6. The muck collection device for large tunnel boring machines according to claim 5, characterized in that, A buffer spring is provided at the hinge of the upper rod and the lower rod, and the lower rod is hooked to the slag hopper via a hook.

7. A method for collecting construction waste, characterized in that, Using any one of the slag collection devices as described in claims 1, 2 or 5, the device is installed at the gate of the screw conveyor to collect slag and / or mud falling from the gate.

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