CN213743410U - Earth pressure balance shield constructs screw conveyer's unearthing mouth optimizing apparatus - Google Patents
Earth pressure balance shield constructs screw conveyer's unearthing mouth optimizing apparatus Download PDFInfo
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- CN213743410U CN213743410U CN202022722772.XU CN202022722772U CN213743410U CN 213743410 U CN213743410 U CN 213743410U CN 202022722772 U CN202022722772 U CN 202022722772U CN 213743410 U CN213743410 U CN 213743410U
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Abstract
The utility model discloses a balanced shield of soil pressure constructs screw conveyer's unearthed mouthful optimizing apparatus, including screw conveyer, band conveyer and be located chute device between the two, chute device passes through the fixed bolster and supports on band conveyer's bearing roller support, and chute device's upper portion is for advancing soil mouthful, and the middle part is the collection soil section that the cross-section from top to bottom shrank, and the lower part is unearthed mouthful. The soil inlet of the chute device is an inclined plane inlet with the same inclination angle as the spiral conveyor; the connecting parts of the upper part, the middle part and the lower part of the chute device are provided with overhanging connecting pieces, bolt holes are arranged on the overhanging connecting pieces to form a connecting structure of a flange-like structure, and the upper part, the middle part and the lower part are connected together through the overhanging connecting pieces and the bolts in sequence. The device has the advantages of simple structure, convenient operation and low cost, and can effectively prevent the phenomenon of secondary manual cleaning caused by gushing and belt deviation or abrasion caused by overlarge residue soil viscosity in the tunneling process of the shield tunneling machine.
Description
Technical Field
The utility model relates to a belong to machinery, a soil pressure balance shield constructs auxiliary assembly of construction technology, concretely relates to soil pressure balance shield constructs screw conveyer's unearthed mouthful optimizing apparatus.
Background
In recent years, with the rapid development of urban underground traffic, the shield method is rapidly developed in large and medium cities in China. The earth pressure balance shield machine has the characteristics of high automation degree, safe and efficient tunneling, capability of better adapting to most stratums and the like, and has absolute advantages in urban rail transit construction. When water-rich strata such as the east south coast and the like are constructed, muck generated by shield tunneling is mixed with water and a muck modifier, the muck is liquefied, at the moment, under the action of water pressure and soil pressure, the liquefied soil is sprayed out from a gate along a screw conveyor and splashes on a shield tunneling machine construction trolley, most of the muck subsequently flows to the lower part of the shield tunneling machine, and the majority of muck is required to be cleaned by the shield tunneling machine construction environment and the site civilized construction requirement, so that workers are required to clean the muck, the site below the shield tunneling machine is narrow and small, the cleaning work is difficult to develop, and the site shield construction process is seriously influenced.
Meanwhile, when the shield tunneling machine tunnels in the stratums such as argillaceous siltstone and clay layers, as the moisture content of the muck is higher, the viscosity is higher, and the dropping positions of the muck from the screw conveyor are randomly distributed, the belt of the belt conveyor deviates when more muck falls on the same side of the belt conveyor, the tunneling can be continued after the deviation correction is finished, and the construction progress is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The utility model mainly solves the technical problems existing in the prior art; the utility model provides a simple structure, simple to operate, the high exit optimization device of practicality, through set up the chute device of infundibulate below screw conveyer exit, can solve earth pressure balance shield structure machine and drop sticky dregs and lead to the belt off tracking phenomenon at the belt homonymy when the clay layer is tunneled, can solve rich water stratum tunnelling in-process exit gushing phenomenon simultaneously.
The above technical problem of the present invention can be solved by the following technical solutions:
the utility model provides a balanced shield of soil pressure constructs screw conveyer's unearthed mouthful optimizing apparatus, includes screw conveyer and the band conveyer who is located screw conveyer unearthed mouthful below, its characterized in that: be equipped with the chute device between screw conveyer unearthed mouth and the band conveyer, the chute device passes through the fixed bolster and supports on band conveyer's bearing roller support, the chute device comprises upper and lower triplex that can dismantle, and upper portion is for advancing the soil mouth, and the middle part is the collection soil section that the cross-section from top to bottom reduces, and the lower part is the unearthed mouth.
Preferably, the soil inlet of the chute device is an inclined plane inlet, and the inclined angle of the inclined plane inlet is the same as that of the spiral conveyor.
Preferably, the joints of the upper part, the middle part and the lower part of the chute device are provided with overhanging connecting sheets, the overhanging connecting sheets are provided with bolt holes to form a connecting structure similar to a flange structure, and the upper part, the middle part and the lower part are connected together through the overhanging connecting sheets and bolts in sequence.
Preferably, the lower part of the chute device is provided with a plurality of soil outlets with different height sizes, and the soil outlets with different heights are arranged on the lower part of the chute device to adjust the soil outlet height.
Preferably, the soil collecting section is of a polygonal frustum pyramid structure, and the soil outlet at the lower part is of a prismatic structure with the size matched with the lower end of the soil collecting section.
Preferably, the fixing support comprises two longitudinal upright posts and a transverse supporting rod arranged between the two longitudinal upright posts, a rectangular frame used for installing the chute device is arranged on the transverse supporting rod, the size of the rectangular frame is larger than the cross section of the lower part of the chute device and smaller than the cross section of the middle part of the chute device, a reserved bolt hole used for fixing the chute device is arranged on the rectangular frame, and the rectangular frame can be connected with the overhanging connecting pieces at the middle and lower parts of the chute device through bolts to form stable connection.
Preferably, the rectangular frame is connected to the chute means by means of outwardly extending connecting tabs and bolts between the middle and lower portions thereof.
Preferably, the transverse supporting rod is connected with the longitudinal upright post through a bolt, a plurality of fixing holes with different heights are formed in the longitudinal upright post, and the height of the transverse supporting rod can be adjusted by selecting the fixing holes with different heights, so that the height of the chute device is adjusted
Preferably, the periphery of the top of the soil inlet is provided with a high-pressure nozzle spraying water to the inside.
Therefore, the utility model has the advantages of as follows: simple structure, can dismantle, simple to operate, low cost through adjusting the height of fixed stay frame and high pressure nozzle water spray pressure and water spray volume size, can reach the clay layer and tunnel and prevent the belt off tracking and the construction effect that the rich water stratum tunnels and prevents that the dregs from gushing.
Drawings
Fig. 1 is a schematic view of the earth pressure balance shield screw conveyor of the present invention;
FIG. 2 is a schematic view of the chute apparatus of the present invention;
fig. 3 is a schematic view of the fixing support frame of the present invention.
In the figure, 1-chute device, 2-fixed support frame, 3-belt conveyor, 4-screw conveyor, 5-soil inlet, 6-soil collecting section, 7-soil outlet, 8-overhanging connecting piece, 9-reserved bolt hole, 10-high pressure nozzle, 11-longitudinal upright post, 12-transverse support rod, 13-rectangular frame, 14-fixed hole, 15-screw conveyor soil outlet, 16-roller support and 17-inclined plane inlet.
Detailed Description
The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings. Example (b):
referring to fig. 1 to 3, the present embodiment provides an earth outlet optimization device of an earth pressure balance shield spiral conveyor, including a spiral conveyor 4 and a belt conveyor 3 located below an earth outlet 15 of the spiral conveyor, a chute device 1 is arranged between the earth outlet 15 of the spiral conveyor and the belt conveyor 3, the chute device 1 is supported on a carrier roller support 16 of the belt conveyor 3 through a fixed support, the chute device 1 is composed of three detachable upper, middle and lower parts, an upper part is an earth inlet 5, a middle part is an earth collecting section 6 with a section reduced from top to bottom, and a lower part is an earth outlet 7; the section of collecting soil 6 is polygon terrace with edge structure, the prism structure that unearthed mouth 7 of lower part matches for size and the 6 lower extremes of section of collecting soil, the soil inlet 5 on upper portion is the prism structure that size and the 6 upper ends of section of collecting soil match, and this prism structure cuts half along the side diagonal, form the inclined plane entry 17 of a rectangle, the inclination of inclined plane entry 17 is the same with screw conveyer 4's inclination, it presses close to be convenient for enter soil mouth 5 and screw conveyer 4, can effectively prevent that screw conveyer unearthed 15 earth that comes out from splashes everywhere, so that when adjusting chute device 1's position and height, inclined plane entry 17 is aimed at with screw conveyer 4's export.
In this embodiment, the junction of the upper, middle and lower parts of the chute device 1 is provided with an overhanging connecting piece 8, the overhanging connecting piece 8 is provided with a reserved bolt hole 9 to form a connecting structure similar to a flange structure, and the upper part, the middle part and the lower part are connected together by sequentially passing through the overhanging connecting piece 8 and a bolt. The areas of the connecting parts of the upper, middle and lower parts are the same, 4 extending connecting pieces 8 are welded with each other, 4 bolt holes are reserved in each connecting piece, and the upper, middle and lower parts are connected with each other through 16 bolts to form a stable structure.
As a preferred embodiment, the lower part of the chute device 1 is provided with a plurality of soil outlets 7 with different height dimensions, and the soil outlets 7 with different heights are selected to be arranged at the lower part of the chute device 1 to adjust the soil outlet height, for example, soil conveyed by the screw conveyor 4 is thin, has more water content and good fluidity, but is easy to splash, so that the longer soil outlet 7 is selected, the lower end of the soil outlet 7 is enabled to follow the conveying belt close to the belt conveyor 3, and the splashing is effectively prevented; soil that comes is dry when screw conveyer 4 carries, and viscosity is big, piles up on belt conveyor 3's conveyor belt easily, causes the jam, so need select the unearthed mouth 7 of shorter size for the conveyor belt of belt conveyor 3 is kept away from to unearthed 7 lower extreme, prevents that soil from piling up on conveyor belt, disturbs unearthed 7 of unearthed mouth.
The fixed support comprises two longitudinal upright posts 11 and a transverse supporting rod 12 installed between the two longitudinal upright posts 11, a rectangular frame 13 used for installing the chute device 1 is arranged on the transverse supporting rod 12, the size of the rectangular frame 13 is larger than the cross section of the lower part of the chute device 1 and smaller than the cross section of the middle part of the chute device 1, and the rectangular frame 13 is connected with the chute device 1 through an overhanging connecting piece 8 and a bolt between the middle part and the lower part of the rectangular frame.
The transverse supporting rod 12 is connected with the longitudinal upright post 11 through a bolt, a plurality of fixing holes 14 with different heights are arranged on the longitudinal upright post 11, the height of the transverse supporting rod 12 can be adjusted by selecting the fixing holes with different heights, and therefore the height of the chute device 1 is adjusted
The border all around at advancing 5 tops is equipped with the high pressure nozzle 10 to inside water spray, when earth glues on the inclined plane in the soil collection section 6 of chute device 1, plays high pressure nozzle 10 water spray and washes away the earth on it, prevents that earth accumulation too much from causing out of the earth not smooth, blocks up chute device 1 even.
The utility model discloses device fixed stay frame 2's horizontal bracing piece 12 can carry out longitudinal movement along longitudinal column 11, according to the shield constructs the actual conditions such as the construction process is piled up height, dregs viscidity, dregs moisture content including the dregs, can highly adjust in order to adapt to multiple different circumstances through removing horizontal bracing piece 12 and rectangular frame 13, plays the collection soil or prevents spouting the effect.
The utility model discloses the device is when using, has following two kinds of circumstances:
1. shield constructs the machine and when the rich water stratum is tunneled, because water content is more will lead to gushing the phenomenon, influence the shield and construct normal construction process, this moment this device should adjust the 2 height of fixed stay frame for screw conveyer unearthing mouth 15 is pressed close to as far as possible to the soil inlet 5 of device chute device 1, change the unearthing mouth 7 of 1 lower part of chute device simultaneously, make unearthing mouth 7 lower extreme press close to the conveyor belt of band conveyer 3 more, gush the belt that can not spill in order to ensure the shield structure machine. Further, at this time, the shield machine has relatively thin slag soil, and most of the slag soil is in a fluid state, so the high-pressure nozzle 10 should be closed or the spraying interval of the high-pressure nozzle 10 should be adjusted, and the influence of excessive water on the belt conveyor 3 on slag soil transportation is avoided.
2. The shield constructs the machine and carries out the formula of tunnelling in the cohesive soil stratum, because the dregs position of dropping appears the condition of 3 belt off tracking of band conveyer at random easily, influence shield constructs the machine construction process, should adjust the unearthing mouth 7 of 2 height of fixed bolster or change chute device 1 lower parts this moment, make the unearthing mouth 7 lower extreme and band conveyer 3's conveyer belt leave sufficient height, this height should be greater than the dregs and pile up the height, simultaneously according to shield constructs quick-witted unearthing speed and dregs viscosity adjustment high pressure nozzle 10 water spray interval, the size of water spray volume and water spray pressure, can control dregs moisture content when guaranteeing to can smooth unearthing, ensure that dregs can be transported smoothly by band conveyer 3.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (9)
1. The utility model provides a balanced shield of soil pressure constructs screw conveyer's unearthed mouthful optimizing apparatus, includes screw conveyer and the band conveyer who is located screw conveyer unearthed mouthful below, its characterized in that: be equipped with the chute device between screw conveyer unearthed mouth and the band conveyer, the chute device passes through the fixed bolster and supports on band conveyer's bearing roller support, the chute device comprises upper and lower triplex that can dismantle, and upper portion is for advancing the soil mouth, and the middle part is the collection soil section that the cross-section from top to bottom reduces, and the lower part is the unearthed mouth.
2. The unearthed optimization device of claim 1, characterized in that: the soil inlet of the chute device is an inclined plane inlet, and the inclined angle of the inclined plane inlet is the same as that of the spiral conveyor.
3. The unearthed optimization device of claim 1, characterized in that: the connecting parts of the upper part, the middle part and the lower part of the chute device are provided with overhanging connecting pieces, bolt holes are arranged on the overhanging connecting pieces to form a connecting structure of a flange-like structure, and the upper part, the middle part and the lower part are connected together through the overhanging connecting pieces and the bolts in sequence.
4. The unearthed optimization device of claim 1, characterized in that: the lower part of the chute device is provided with a plurality of unearthing ports with different height sizes, and the unearthing height of the chute device is adjusted by selecting the unearthing ports with different heights to be arranged at the lower part of the chute device.
5. The unearthed optimization device of claim 3, characterized in that: the soil collection section is of a polygonal frustum pyramid structure, and the soil outlet at the lower part is of a prismatic structure matched with the lower end of the soil collection section in size.
6. The unearthed optimization device of claim 5, characterized in that: the fixed bolster includes two vertical stands and installs the horizontal bracing piece between two vertical stands, be equipped with the rectangular frame who is used for installing the chute device on the horizontal bracing piece, be equipped with the reservation bolt hole that is used for fixed chute device on the rectangular frame.
7. The unearthed optimization device of claim 6, characterized in that: the rectangular frame is connected with the chute device through an overhanging connecting piece and a bolt between the middle part and the lower part of the rectangular frame.
8. The unearthed optimization device of claim 6, characterized in that: the transverse supporting rods are connected with the longitudinal upright columns through bolts, a plurality of fixing holes with different heights are formed in the longitudinal upright columns, and the heights of the transverse supporting rods can be adjusted by selecting the fixing holes with different heights, so that the heights of the chute device are adjusted.
9. The unearthed optimization device of any one of claims 1-8, characterized in that: and high-pressure nozzles for spraying water to the inside are arranged at the peripheral edge of the top of the soil inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022722772.XU CN213743410U (en) | 2020-11-23 | 2020-11-23 | Earth pressure balance shield constructs screw conveyer's unearthing mouth optimizing apparatus |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022722772.XU CN213743410U (en) | 2020-11-23 | 2020-11-23 | Earth pressure balance shield constructs screw conveyer's unearthing mouth optimizing apparatus |
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| CN213743410U true CN213743410U (en) | 2021-07-20 |
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| CN202022722772.XU Active CN213743410U (en) | 2020-11-23 | 2020-11-23 | Earth pressure balance shield constructs screw conveyer's unearthing mouth optimizing apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165252A (en) * | 2021-12-08 | 2022-03-11 | 北京市市政四建设工程有限责任公司 | Device for preventing double-mold shield slurry mode spiral soil outlet from being blocked and soil discharging equipment |
-
2020
- 2020-11-23 CN CN202022722772.XU patent/CN213743410U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114165252A (en) * | 2021-12-08 | 2022-03-11 | 北京市市政四建设工程有限责任公司 | Device for preventing double-mold shield slurry mode spiral soil outlet from being blocked and soil discharging equipment |
| CN114165252B (en) * | 2021-12-08 | 2023-12-01 | 北京市市政四建设工程有限责任公司 | Device for preventing pipe blocking of spiral soil outlet in double-mode shield slurry mode and soil outlet equipment |
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