CN201407048Y - Screw conveyer blowout prevention gate device - Google Patents
Screw conveyer blowout prevention gate device Download PDFInfo
- Publication number
- CN201407048Y CN201407048Y CN2009200666623U CN200920066662U CN201407048Y CN 201407048 Y CN201407048 Y CN 201407048Y CN 2009200666623 U CN2009200666623 U CN 2009200666623U CN 200920066662 U CN200920066662 U CN 200920066662U CN 201407048 Y CN201407048 Y CN 201407048Y
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- gate
- screw conveyer
- conveying worm
- type gate
- hydraulic
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Abstract
A screw conveyer blowout prevention gate device belongs to the technical field of tunnel excavation engineering machine. The screw conveyer blowout prevention gate device comprises a connecting sleeve, an inserting board type gate and a gate frame and is characterized in that the connecting sleeve and the gate frame are welded integrally, the connecting sleeve is a circular tube, which upper end is axially welded with the plane of the lower end of the hydraulic drawing gate of a screw conveyer, the inserting board type gate is a rectangle plate, of which the circumference is provided with large chamfer angle to reduce resistance in operation and the top end is provided with a hole for inserting and drawing out a handle, and the gate frame comprises a groove frame base and a groove frame end cover. When the hydraulic system of the screw conveyer has failures and the hydraulic driving gate has operation failure therefore, the inserting board type gate can prevent out of adjustment on theunloading and soil feed speed and prevent out of control on the soil pressure balance of the screw conveyer, thereby preventing the whole construction progress and quality from being affected. And the inserting board type gate can prevent massive slurry and flowing sand generated by differential pressure from entering into shield tunneling machine via the screw conveyer to avoid disaster, realizesafe construction and prevent major accident.
Description
Technical field
The utility model relate to a kind of earth pressure balance shield machine valve system, specifically be a kind of blowout prevention valve system of when tunnel piercing, the excavation cutting soil body, carrying the conveying worm of native slag.
Background technology
Earth Pressure Balancing Type Shell Excavator is a kind of special engineering machinery of tunnel piercing, and this shield machine claims to cut native closed or earth adding pressure type shield structure again, is applicable to contain the novel shield structure of constructing in the water saturation soft stratum.Its head is equipped with full section cutting cutterhead, cutting cutterhead rear portion forms the sealing separation and is called excavation face earth chamber, a kind of " making mud material " of pressure injection in the native gravel under knife cutting with mobile and impermeability, force to stir with the paddle of cutterhead back then, the soil that cuts is become have special soil mobile and impermeability, and this soil is full of in excavation face earth chamber and the joining long tubular conveying worm.When the shield structure advanced, native indoor earth just produced pressure and acts on the excavation face, the lateral pressure of the corresponding balance excavation face soil body.Heterotaxis does not take place in the tunneling process in order to make, must control the balance of driving amount and casting amount, the method of its control is: by controlling parts such as soil pressure case, the variable program controller of PLC at first the earth pressure of excavation face earth chamber be adjusted to be equal to stratum earth pressue at rest and groundwater pressure and, to reach the stable of stratum; Then from characteristics such as the features of shape of conveying worm, rotation number, soil property decision casting efficient, to obtain casting amount and the casting speed that each lining papers is built; At last with keeping the stable soil pressure of excavation face to regulate fltting speed and jack gross thrust, thereby the cutting speed of regulating cutterhead is controlled excavation earth amount, come the rotating speed of adjustable screw conveyer to excavate the earth amount, make conveying worm earth discharge rate equal the earth excavated volume.Conversely with keeping the stable soil pressure of excavation face to control the conveying worm rotating speed, regulate the speed of being unearthed, the speed of regulating shield structure fltting speed and knife cutting soil with the speed of being unearthed, to keep excavation face earth chamber to be full of earth all the time, and it is have the earth pressure of stable excavation face, but unlikely overstocked and influence the rotation of cutterhead.This structure had both been avoided the major defect of other class shield machines, had omitted the muddy water treatment facility in the slurry shield again, so the soil pressure balance type shield structure is one of the most promising underground heading equipment that is developing.
At present, both at home and abroad all it does not just unload earth material by the single hydraulic-driven gate that disposes on the conveying worm and controls the get off transporting velocity of the soil body of shield machine cutting the conveying worm of shield machine with the blowout prevention valve system, make its earth discharge rate equal the earth excavated volume, also as preventing a large amount of muddy water that pressure reduction produces, drift sand pours in shield excavation machine inside through conveying worm blowout prevention gate.
There is following deficiency in the hydraulic-driven gate of conveying worm in the prior art: the first is when run into drift sand in tunneling process, the soil body that water content is bigger or hydraulic-driven gate are owing to be embedded in underground building concrete piece, during clamping stagnations such as bridge foundation reinforcing bar and gate can't be opened and closed so cause a large amount of muddy water by pressure reduction, drift sand pours in shield excavation machine inside through conveying worm and causes disaster, it two is that hydraulic system when conveying worm in normal tunneling process is out of order the malfunctioning conveying worm discharging speed of being unearthed that causes of hydraulic-driven operating gate can't be regulated, more cause the speed of shield machine fltting speed and knife cutting soil to control, thereby influence whole construction progress and quality by earth pressure balance.
Summary of the invention
The purpose of this utility model is to overcome the deficiency that above-mentioned prior art exists, and a kind of novel conveying worm blowout prevention valve system is provided.This valve system is controlled the get off transporting velocity of the soil body of shield machine cutting in order to the rotating speed that can regulate conveying worm to the hydraulic-driven gate interaction of former conveying worm configuration on the shield excavation machine, make its earth discharge rate equal the earth excavated volume, excavation face earth chamber is full of earth and relevant pressure all the time in the shield machine to keep, and stablizes the effect of excavation face earth pressure so have to prevent to cave in.When in tunneling process, running into the bigger soil body of drift sand, water content or hydraulic-driven gate because can be when being embedded in clamping stagnation such as underground building concrete piece, bridge foundation reinforcing bar by the board plug type gate of artificial urgent this device of keying, prevent that a large amount of muddy water, drift sand from pouring in shield excavation machine inside through conveying worm, play the function that safe construction prevents that major accident from taking place.
The utility model is achieved through the following technical solutions, this device comprises branch sleeve, board plug type gate, gate framework, it is characterized in that, be welded to form integral body between branch sleeve, the gate framework, the unearthed cinder notch of the middle part of integral planar and conveying worm, hydraulic-driven gate floss hole connect and form concentric circles; Described branch sleeve is a tubular, the following transverse plane concentric welding of its upper end and conveying worm hydraulic-driven gate; Described board plug type gate is that a rectangular flat and periphery have the resistance of big chamfering when reducing operation, and its top has insertion, extracts grip hole; Described gate framework comprises groove skeleton frame, groove frame end cap, the groove skeleton frame is gone up planar ends band circular hole shoulder outward and is welded with the assembling of branch sleeve lower end concentric, it is stuck when operating with the board plug type gate that prevents to be installed in this greater than the width of board plug type gate that the inner plane end has its width dimensions of rectangle shoulder, outer lower plane end is equipped with a groove frame end cap of opening circular hole, and its center of circle is coaxial and be welded to form integral body with groove skeleton frame three faces with the groove skeleton frame.
The hydraulic-driven gate of former conveying worm configuration is interactive and control the get off transporting velocity of the soil body of shield machine cutting by the rotating speed that controlling parts such as soil pressure case, PLC programmable logic controller can be regulated conveying worm on the utility model gate and the shield excavation machine, make its earth discharge rate equal the earth excavated volume, excavation face earth chamber is full of earth and relevant pressure all the time in the shield machine to keep, so have the effect that prevents to cave in, stablize excavation face earth pressure.In addition, when running into the bigger soil body of drift sand and water content or hydraulic-driven gate in the tunneling process because can be when being embedded in clamping stagnation such as underground building concrete piece, bridge foundation reinforcing bar by the board plug type gate of artificial urgent this device of keying, prevent that a large amount of muddy water, drift sand from pouring in shield excavation machine inside through conveying worm and causing disaster, play the function that safe construction prevents that major accident from taking place, it is simple in structure, operation, easy to maintenance.
Compared with prior art, technological merit of the present utility model:
1. adopt adjunction board plug type gate with the hydraulic system that prevents conveying worm be out of order make the hydraulic-driven operating gate malfunctioning cause the conveying worm discharging to be unearthed speed can't be regulated, earth pressure balance is out of control, thereby influence whole construction progress and quality.
2. adopt adjunction board plug type gate to prevent that pressure reduction from producing a large amount of muddy water, drift sand pours in shield excavation machine inside through conveying worm and causes disaster, play the function that safe construction prevents that major accident from taking place.
Description of drawings
Fig. 1 is the structural representation that shield structure complete machine is carried native slag.
Fig. 2 is a structural representation of the present utility model.(three-view diagram) Fig. 2 a: front view, Fig. 2 b: left view, Fig. 2 c: vertical view
Fig. 3 is a gate framing holder cross-sectional schematic of the present utility model.(three-view diagram) Fig. 3 a: front view, Fig. 3 b: left view
Fig. 4 is a board plug type gate view of the present utility model.(three-view diagram) Fig. 4 a: front view, Fig. 4 b: left view, Fig. 4 c: vertical view
Description of symbols:
1-conveying worm 2-hydraulic-driven gate 3-belt conveyor
4-conveying worm blowout prevention gate 5-branch sleeve 6-board plug type gate
7-gate framework 8-groove skeleton frame 9-groove frame end cap
The specific embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated: present embodiment has provided detailed embodiment being to implement under the prerequisite with technical solutions of the utility model, but protection domain of the present utility model is not limited to following embodiment.
Shield structure complete machine is as shown in Figure 1 carried the structural representation of native slag, illustrates described shield excavation machine and carries the equipment that transports of native slag to comprise: conveying worm 1, hydraulic-driven gate 2, belt conveyor 3, conveying worm blowout prevention gate 4 devices.Described hydraulic-driven gate 2 be positioned at conveying worm 1 be unearthed the cinder notch below and with conveying worm 1 shell bolt.Described conveying worm blowout prevention gate 4 is welded with the lower surface assembling of hydraulic-driven gate 2 by the upper surface of transition branch sleeve 5, and weld with the upper surface assembling of conveying worm blowout prevention gate 4 lower surface of branch sleeve 5 again.The native slag that conveying worm 1 elevates in the work arrives belt conveyor 3 through hydraulic-driven gate 2, branch sleeve 5, conveying worm blowout prevention gate 4 and directly discharges the operation that subterranean tunnel is finished the native slag of conveying.
(Fig. 2 a wherein: front view of the structure of conveying worm blowout prevention gate 4 device in the present embodiment as shown in Figure 2, Fig. 2 b: left view, Fig. 2 c: vertical view), these conveying worm blowout prevention gate 4 devices comprise: branch sleeve 5, board plug type gate 6, gate framework 7.Be welded to form integral body between branch sleeve 5, the gate framework 7, the middle part on its plane and conveying worm 1 unearthed cinder notch, the perforation of hydraulic-driven gate 2 floss holes also form concentric circles; Described branch sleeve 5 is a tubular, the following transverse plane concentric welding of its upper end and conveying worm hydraulic-driven gate 2; Described board plug type gate 6 is that a rectangular flat and periphery have the resistance of chamfering when reducing operation, and its top has insertions, extracts grip hole so that operate.
The structure of gate framework 7 as shown in Figure 3 (Fig. 3 a wherein: front view, Fig. 3 b: left view), comprise groove skeleton frame 8, groove frame end cap 9, groove skeleton frame 8 left side planar central have the circular hole shoulder and with branch sleeve 5 lower end concentrics assembling welding, it is stuck when the operation with the board plug type gate 6 that prevents to be installed in this that another inner plane has thickness that width height that its width dimensions of rectangular recess is slightly larger than board plug type gate 6 is slightly larger than board plug type gate 6.Described groove frame end cap 9 profiles are that rectangle end face center has circular hole and makes board plug type gate 6 can insert, open adjustment flexibly with the 8 end face center concentrics installations of groove skeleton frame, the synthetic interior framework of wedge flute profile of being with of soldering group.
The structure of board plug type gate 6 as shown in Figure 4 (Fig. 4 a wherein: front view, Fig. 4 b: left view, Fig. 4 c: vertical view), this board plug type gate 6 is that a rectangular flat and periphery have the resistance of chamfering when reducing operation, its top has insertion, extracts grip hole so that manually change area of passage, the control flow of floss hole soil slag, reaches artificial emergent this valve system that opens and closes, and plays the function that safe construction prevents that major accident from taking place, it is simple in structure, operation, easy to maintenance.
Claims (1)
1. conveying worm blowout prevention valve system, comprise branch sleeve, board plug type gate, gate framework, it is characterized in that, be welded to form integral body between branch sleeve, the gate framework, the unearthed cinder notch of the middle part of integral planar and conveying worm, hydraulic-driven gate floss hole connect and form concentric circles; Described branch sleeve is a tubular, the following transverse plane concentric welding of its upper end and conveying worm hydraulic-driven gate; Described board plug type gate is that a rectangular flat and periphery have the resistance of big chamfering when reducing operation, and its top has insertion, extracts grip hole; Described gate framework comprises groove skeleton frame, groove frame end cap, the groove skeleton frame is gone up planar ends band circular hole shoulder outward and is welded with the assembling of branch sleeve lower end concentric, it is stuck when operating with the board plug type gate that prevents to be installed in this greater than the width of board plug type gate that the inner plane end has its width dimensions of rectangle shoulder, outer lower plane end is equipped with a groove frame end cap of opening circular hole, and its center of circle is coaxial and be welded to form integral body with groove skeleton frame three faces with the groove skeleton frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200666623U CN201407048Y (en) | 2009-01-08 | 2009-01-08 | Screw conveyer blowout prevention gate device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200666623U CN201407048Y (en) | 2009-01-08 | 2009-01-08 | Screw conveyer blowout prevention gate device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201407048Y true CN201407048Y (en) | 2010-02-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200666623U Expired - Fee Related CN201407048Y (en) | 2009-01-08 | 2009-01-08 | Screw conveyer blowout prevention gate device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201407048Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330568A (en) * | 2011-06-21 | 2012-01-25 | 上海隧道工程股份有限公司 | Shield arrival gate plate type emergency safety device |
| CN106468173A (en) * | 2015-08-14 | 2017-03-01 | 赵明 | A kind of manhole blind flange of spiral excavation of earthwork machine |
| CN106703818A (en) * | 2016-12-29 | 2017-05-24 | 中船重型装备有限公司 | Shield machine screw conveyor gate |
| CN107916940A (en) * | 2017-12-01 | 2018-04-17 | 辽宁三三工业有限公司 | A kind of anti-jamming gate of slagging tap of shield machine screw machine |
-
2009
- 2009-01-08 CN CN2009200666623U patent/CN201407048Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102330568A (en) * | 2011-06-21 | 2012-01-25 | 上海隧道工程股份有限公司 | Shield arrival gate plate type emergency safety device |
| CN106468173A (en) * | 2015-08-14 | 2017-03-01 | 赵明 | A kind of manhole blind flange of spiral excavation of earthwork machine |
| CN106703818A (en) * | 2016-12-29 | 2017-05-24 | 中船重型装备有限公司 | Shield machine screw conveyor gate |
| CN107916940A (en) * | 2017-12-01 | 2018-04-17 | 辽宁三三工业有限公司 | A kind of anti-jamming gate of slagging tap of shield machine screw machine |
| CN107916940B (en) * | 2017-12-01 | 2024-04-26 | 辽宁三三工业有限公司 | Screw machine anti-blocking slag discharging gate for shield machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100217 Termination date: 20150108 |
|
| EXPY | Termination of patent right or utility model |