CN202673297U - Improved shield machine shield tail sealing grease injection system - Google Patents
Improved shield machine shield tail sealing grease injection system Download PDFInfo
- Publication number
- CN202673297U CN202673297U CN 201220285276 CN201220285276U CN202673297U CN 202673297 U CN202673297 U CN 202673297U CN 201220285276 CN201220285276 CN 201220285276 CN 201220285276 U CN201220285276 U CN 201220285276U CN 202673297 U CN202673297 U CN 202673297U
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- Prior art keywords
- shield
- shield tail
- seal grease
- tail seal
- tail
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- Expired - Fee Related
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Abstract
An improved shield machine shield tail sealing grease injection system comprises a shield tail sealing grease injection pump, a shield tail sealing grease delivery main pipe, a check valve and at least two shield tail sealing grease delivery branch pipes. The shield tail sealing grease injection pump is connected with the shield tail sealing grease delivery main pipe which is connected with at least two shield tail sealing grease delivery branch pipes. Each shield tail sealing grease delivery branch pipe is connected with 6 to 10 shield tail sealing grease delivery branched passages. Each sealing cavity of a shield tail is provided with shield tail sealing grease injection holes which correspond to the shield tail sealing grease delivery branched passages in a one-to-one mode. All shield tail sealing grease injection holes and shield tail sealing grease injection branched passages are evenly distributed on the shield tail. According to the improved shield machine shield tail sealing grease injection system, shield tail sealing grease can be evenly distributed on a shield tail sealing ring, sealing effects of the shield tail sealing ring and service life of a shield tail brush are guaranteed, sealing lose efficacy of the shield tail caused by reverse breakdown of the shield tail brush is prevented, and tunneling construction safety of a shield machine can be effectively guaranteed.
Description
Technical field
The utility model relates to the tail seal grease of shield injected system, specifically a kind of improved shield machine shield tail seal grease injected system.
Background technology
Along with the development of shield machine and construction technology thereof and perfect, shield construction has also become indispensable a kind of job practices in current city tunnel and the subway engineering.In this shield-tunneling construction, the tail sealing system is one of critical system of the normal driving of shield machine.Review the application practice of shield machine, the security incident that shield method tunnel construction occurs is usually not at the shield machine head and at the shield tail.
In the shield tunneling process, by advancing jack to release the shield tail, this process shield body moves forward continuously after the position assembly unit of shield tail in the section of jurisdiction, shield tail and had relative sliding between the tubulature sheet.Because the section of jurisdiction external diameter is less than shield body internal diameter, so exists certain gap between section of jurisdiction and the shield body, for the underground water that prevents the shield external body with carry on the back back-up sand slurry etc. and enter in the shield machine by this gap, must carry out encapsulation process to the gap between shield tail and section of jurisdiction.By the cavity between the tail sealing brush is injected tail seal grease of shield, guarantee that the slurries of shield tail pipe sheet behind synchronous grouting can not spill from the gap between section of jurisdiction and the shield machine, prevent that simultaneously ground water seepage is in shield machine.Thereby the quality of tail sealing grease filling system directly affects progress, quality and the safety of engineering.When constructing in long distance and bad ground especially, it is particularly important that the tail seal grease of shield injected system seems.
The shield machine tail sealing generally is comprised of 3 road shield ventral brushes, forms two seal grease chambeies, i.e. ante-chamber and back cavity, and the front twice are long shield ventral brush, the 3rd road is short shield ventral brush.The shield machine shield tail spillage situation of leaking is quite general, in work progress, repairs or changes the shield ventral brush, and cost is higher, and affects construction speed.In engineering in the past, for shield tail spillage, attempted different counter-measures, often can't reach ideal effect, affected normally carrying out of shield-tunneling construction.
As shown in Figure 1, existing shield machine shield tail seal grease filling line system comprises that tail seal grease of shield injection pump 1, tail seal grease of shield carry supervisor 2, flap valve 3, a tail seal grease of shield to carry arm 6, and many tail seal grease of shield are carried and are in charge of 7; After tail seal grease of shield injection pump 1 drives, tail seal grease of shield drives by tail seal grease of shield injection pump 1, the process tail seal grease of shield is carried supervisor 2, tail seal grease of shield conveying arm 6, the too much root tail seal grease of shield of warp is carried and is in charge of 7 (having 8 shown in the figure) again, opens ante-chamber valve BV1～4 injection ante-chambers 9 or unlatching back cavity valve BV5～8 injection back cavities 10.Wherein, the tail seal grease of shield ascending pipe of the per pass annular seal space of shield machine shield tail seal grease injected system only has four, and then decanting point only has 4 in the nearly 20 meters annular seal space of overall length, and is comparatively difficult away from the annular seal space acquisition seal grease of decanting point.After driving a period of time; because the part shield ventral brush annular seal space away from decanting point can not obtain preferably seal grease supply, so that outside slurries might be invaded the shield tail seal when filling the section of jurisdiction outer gap, cause seal failure; outside slurries enter in the shield machine; cause constructional difficulties, severe patient causes simultaneous grouting slurry seriously to reveal, a large amount of faulting of slab ends in section of jurisdiction; Land-Subsidence Control can't ensure; must change the shield ventral brush, so cause shutdown, increase cost.Therefore, the balancing earth-pressure shielding machine tail sealing is to guarantee that shield machine with the very important safety curtain of underground water isolation, is a critical system realizing the normal driving of shield structure, if this system does not have sealing function, shield machine can't continue driving.
Summary of the invention
The purpose of this utility model provides a kind of improved shield machine shield tail seal grease injected system, can make during shield driving in the tail sealing chamber and be injected tail seal grease of shield by automatic uniform, to improve sealing effectiveness, avoid part position inefficacy on the joint ring, and the friction between minimizing wire brush seal and the tunnel duct piece external surface, the life-span of prolongation seal.
A kind of improved shield machine shield tail seal grease injected system, comprise the tail seal grease of shield injection pump, tail seal grease of shield is carried supervisor, flap valve, the tail seal grease of shield injection pump carries supervisor to be connected with tail seal grease of shield, flap valve is arranged on tail seal grease of shield and carries on the supervisor, it is characterized in that: also comprise at least two tail seal grease of shield conveying arms, tail seal grease of shield carries supervisor to carry arm to be connected with described at least two tail seal grease of shield, each tail seal grease of shield conveying arm is connected with the conveying of 6-10 root tail seal grease of shield and is in charge of, the per pass annular seal space of shield tail is provided with the tail seal grease of shield conveying is in charge of one to one tail seal grease of shield injection hole, and all tail seal grease of shield injection holes and tail seal grease of shield inject to be in charge of and be uniformly distributed on the shield tail.
The utility model is simple to operate, easy to maintenance, namely inject to be in charge of and tail seal grease of shield injected to be in charge of to be uniformly distributed on the shield tail and just can realize by increasing tail seal grease of shield, be easy to promote the use of, brought convenience for the plant maintenance personnel, reduce equipment failure rate, improved production efficiency; The tail seal grease of shield conveying is in charge of increase and is uniformly distributed on the shield tail, makes more uniform filling annular seal space of tail seal grease of shield, ensures the safety of producing, and increases the use application life of shield ventral brush, allows obtain effective guarantee the application life of shield machine, is easy to popularization.
Description of drawings:
Fig. 1 (a) is the structural representation of existing grease injected system;
Fig. 1 (b) is tail seal grease of shield injection hole and the distribution schematic diagram of tail seal grease of shield decanting point on the shield tail of existing grease injected system;
Fig. 2 (a) is structural representation of the present utility model;
Fig. 2 (b) is tail seal grease of shield injection hole and the distribution schematic diagram of tail seal grease of shield decanting point on the shield tail in the utility model.
Among the figure: 1-tail seal grease of shield injection pump, the 2-tail seal grease of shield is carried supervisor, 3-flap valve, 4-pressure sensor, the 5-pressure meter, the 6-tail seal grease of shield is carried arm, and the 7-tail seal grease of shield is carried and is in charge of 8-shield ventral brush, the 9-ante-chamber, the 10-back cavity, 11-shield tail, 12-tail seal grease of shield injection hole; The BV-valve; TGA: ante-chamber decanting point; TGB: back cavity decanting point.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Please refer to Fig. 2, the utility model provides a kind of improved shield machine shield tail seal grease injected system, comprise tail seal grease of shield injection pump 1, tail seal grease of shield is carried supervisor 2, flap valve 3, at least two tail seal grease of shield are carried arm 6, many tail seal grease of shield are carried and are in charge of 7, tail seal grease of shield injection pump 1 carries supervisor 2 to be connected with tail seal grease of shield, tail seal grease of shield carries supervisor 2 to be provided with flap valve 3, pressure sensor 4 and pressure meter 5, tail seal grease of shield carries supervisor 2 and many tail seal grease of shield to carry arm 6 to be connected, and each tail seal grease of shield conveying arm 6 is connected with many tail seal grease of shield conveyings and is in charge of 7.
After tail seal grease of shield injection pump 1 drives, tail seal grease of shield drives by grease injection pump 1, carries supervisor 2, tail seal grease of shield to carry arm 6, carry through too much root tail seal grease of shield and be in charge of 7, open ante-chamber valve BV1～6 and inject ante-chambers 9 or open back cavity valve BV7～12 and inject back cavities 10 again through tail seal grease of shield.The tail seal grease of shield of per pass annular seal space inject be in charge of 7 and tail seal grease of shield injection hole 12 quantity increase, concrete, there is 2-3 root tail seal grease of shield to carry arm 6 in the present embodiment, each tail seal grease of shield conveying arm 6 is connected with the conveying of 6-10 root tail seal grease of shield and is in charge of 7, the per pass annular seal space of shield tail 11 is provided with to carry with tail seal grease of shield is in charge of 7 tail seal grease of shield injection holes 12 one to one, namely tail seal grease of shield injection hole 12 corresponding tail seal grease of shield are carried and are in charge of 7, and all tail seal grease of shield injection holes 12 and tail seal grease of shield injection are in charge of 7 and are uniformly distributed on the shield tail 11.
The course of work of the present utility model: after grease injection pump 1 drives, tail seal grease of shield drives by grease injection pump 1, carry supervisor 2, flap valve 3, ball valve BV0, many tail seal grease of shield to carry arm 6, many tail seal grease of shield to carry and be in charge of 7 through tail seal grease of shield, indication according to pressure meter 5, open successively ante-chamber valve BV1～6 and back cavity valve BV7～12 and respectively tail seal grease of shield is injected ante-chamber 9 and back cavity 10, guarantee that the tail sealing chamber all is injected into tail seal grease of shield, avoid the phenomenon that the part sealed cavity lost efficacy and spillage leaks to occur.
Claims (1)
1. improved shield machine shield tail seal grease injected system, comprise tail seal grease of shield injection pump (1), tail seal grease of shield is carried supervisor (2), flap valve (3), tail seal grease of shield injection pump (1) carries supervisor (2) to be connected with tail seal grease of shield, flap valve (3) is arranged on tail seal grease of shield and carries on the supervisor (2), it is characterized in that: also comprise at least two tail seal grease of shield conveying arms (6), tail seal grease of shield carries supervisor (2) to carry arm (6) to be connected with described at least two tail seal grease of shield, each tail seal grease of shield conveying arm (6) is connected with the conveying of 6-10 root tail seal grease of shield and is in charge of (7), the per pass annular seal space of shield tail (11) is provided with the tail seal grease of shield conveying is in charge of (7) one to one tail seal grease of shield injection hole (12), and all tail seal grease of shield injection holes (12) and tail seal grease of shield injection are in charge of (7) and are uniformly distributed on the shield tail (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220285276 CN202673297U (en) | 2012-06-18 | 2012-06-18 | Improved shield machine shield tail sealing grease injection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220285276 CN202673297U (en) | 2012-06-18 | 2012-06-18 | Improved shield machine shield tail sealing grease injection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202673297U true CN202673297U (en) | 2013-01-16 |
Family
ID=47494207
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220285276 Expired - Fee Related CN202673297U (en) | 2012-06-18 | 2012-06-18 | Improved shield machine shield tail sealing grease injection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202673297U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104314580A (en) * | 2014-10-11 | 2015-01-28 | 北京铁五院工程机械有限公司 | Shield tail sealing brush for monitoring shield tail grease cavity pressure of shield tunneling machine and shield tunneling machine |
| CN104358575A (en) * | 2014-09-15 | 2015-02-18 | 中铁十二局集团有限公司 | Sealing device for slurry shield starting of water-rich sand layer and sealing control method for starting |
| CN104453924A (en) * | 2014-12-01 | 2015-03-25 | 武汉船用机械有限责任公司 | Shield tail grease sealing system for shield tunneling machine |
| CN105092140A (en) * | 2015-09-10 | 2015-11-25 | 中铁工程装备集团有限公司 | Device for detecting grease pressure in grease reservoir of tail shield of shield tunneling machine |
| CN112096392A (en) * | 2020-09-11 | 2020-12-18 | 中交天和机械设备制造有限公司 | Automatic shield tail grease injection method and system of shield tunneling machine |
| CN114060045B (en) * | 2021-11-01 | 2024-04-05 | 中铁工程装备集团有限公司 | Tail shield and shield machine |
-
2012
- 2012-06-18 CN CN 201220285276 patent/CN202673297U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358575A (en) * | 2014-09-15 | 2015-02-18 | 中铁十二局集团有限公司 | Sealing device for slurry shield starting of water-rich sand layer and sealing control method for starting |
| CN104358575B (en) * | 2014-09-15 | 2017-12-08 | 中铁十二局集团有限公司 | A kind of water-rich sand layer slurry shield originates sealing device and originates sealing control method |
| CN104314580A (en) * | 2014-10-11 | 2015-01-28 | 北京铁五院工程机械有限公司 | Shield tail sealing brush for monitoring shield tail grease cavity pressure of shield tunneling machine and shield tunneling machine |
| CN104314580B (en) * | 2014-10-11 | 2016-07-06 | 北京铁五院工程机械有限公司 | The tail sealing brush monitoring shield tail grease cavity pressure and shield machine for shield machine |
| CN104453924A (en) * | 2014-12-01 | 2015-03-25 | 武汉船用机械有限责任公司 | Shield tail grease sealing system for shield tunneling machine |
| CN105092140A (en) * | 2015-09-10 | 2015-11-25 | 中铁工程装备集团有限公司 | Device for detecting grease pressure in grease reservoir of tail shield of shield tunneling machine |
| CN112096392A (en) * | 2020-09-11 | 2020-12-18 | 中交天和机械设备制造有限公司 | Automatic shield tail grease injection method and system of shield tunneling machine |
| CN114060045B (en) * | 2021-11-01 | 2024-04-05 | 中铁工程装备集团有限公司 | Tail shield and 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130116 Termination date: 20170618 |