CN112412484A - Center-adjustable type center rotary joint for shield machine - Google Patents
Center-adjustable type center rotary joint for shield machine Download PDFInfo
- Publication number
- CN112412484A CN112412484A CN202011421631.2A CN202011421631A CN112412484A CN 112412484 A CN112412484 A CN 112412484A CN 202011421631 A CN202011421631 A CN 202011421631A CN 112412484 A CN112412484 A CN 112412484A
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- China
- Prior art keywords
- center
- connecting shaft
- cutter head
- rotary joint
- machine according
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Links
- 230000005641 tunneling Effects 0.000 claims abstract description 12
- 238000005192 partition Methods 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 13
- 239000010687 lubricating oil Substances 0.000 claims description 4
- 229910000906 Bronze Inorganic materials 0.000 claims description 3
- 229910000617 Mangalloy Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- 239000010974 bronze Substances 0.000 claims description 3
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 claims description 3
- 238000009434 installation Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 238000003754 machining Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- 230000009191 jumping Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002689 soil Substances 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008092 positive effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/06—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining
- E21D9/08—Making by using a driving shield, i.e. advanced by pushing means bearing against the already placed lining with additional boring or cutting means other than the conventional cutting edge of the shield
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
The invention discloses an adjustable center rotary joint for a shield tunneling machine, which comprises a cutter head connecting block (1), a center adjusting block (2), a double-lip seal (3) and a connecting shaft (6); the cutter head connecting block (1) is connected with the connecting shaft (6) through a connecting piece, and the coaxiality deviation between the cutter head connecting block (1) and the connecting shaft (6) is adjusted through a central adjusting block (2) arranged on the connecting shaft (6). The cutter head connecting block (1) is a disc, a hexagon-shaped cavity is arranged in the axial direction of the disc, and the outer side of the connecting shaft (6) is in a hexagon shape and matched with the hexagon-shaped cavity in the disc. The connection mode of the cutter head and the revolving body is a hexagonal head structure, a certain coaxiality clearance is formed between the cutter head and the revolving body, the coaxiality clearance can be adjusted through the central adjusting block, the concentricity of the cutter head and the revolving joint is guaranteed to the maximum extent, the difficulty of machining and installation is simplified, the service life of the revolving joint is prolonged, and the convenience of maintenance is improved.
Description
The technical field is as follows:
the invention relates to the technical field of shield tunneling machines, in particular to a center-adjustable type center rotary joint for a shield tunneling machine.
Background art:
the central rotary joint of the shield machine is a mechanism which is arranged at a cutter head and a main driving center of the shield machine, a mandrel of the central rotary joint is connected with the cutter head and rotates along with the cutter head, and a rotary sleeve at the rear end is fixed and does not rotate.
Because the shield constructs quick-witted underground work, bears water pressure and soil pressure, and the site work environment is relatively poor, consequently, a plurality of positions of shield structure machine need seal, prevent that the earth of excavation side from getting into the rear warehouse, guarantee the normal operating of shield structure machine and staff's safety. Therefore, improvement of the internal parts of the shield machine is very necessary.
The invention content is as follows:
aiming at the defects and shortcomings of the prior art, the invention provides the center-adjustable type center rotary joint for the shield machine, and aims to solve the problem that the centers of a cutter head and a shield body are not concentric in the process of machining or mounting the shield machine.
The technical problem solved by the invention can be realized by adopting the following technical scheme: the utility model provides a shield constructs machine center swivel joint of adjustable heart, its characterized in that: the device comprises a cutter head connecting block, a central adjusting block, a double-lip seal and a connecting shaft; the cutter head connecting block is connected with the connecting shaft through a connecting piece, and the coaxiality deviation between the cutter head connecting block and the connecting shaft is adjusted through a central adjusting block arranged on the connecting shaft; the cutter head connecting block is a disc, a hexagon socket-shaped cavity is arranged in the axial direction of the disc, and the outer side of the connecting shaft is in a hexagon socket shape and matched with the hexagon socket-shaped cavity in the disc.
In one embodiment, the device further comprises a diaphragm ring, a support sleeve and a flange cover; the partition plate ring is sleeved outside the connecting shaft, the lower part of the double-lip seal is arranged below the double-lip seal, the supporting sleeve sleeved outside the connecting shaft is arranged below the partition plate ring, and the flange cover arranged below the supporting sleeve fixes the supporting sleeve between the partition plate ring and the flange cover through a connecting piece.
In one embodiment, the Vd sealing device further comprises a Vd sealing device, and the Vd sealing device is arranged between the support sleeve and the connecting shaft.
In one embodiment, the central adjusting block is fixed at an outer hexagonal part at one end of the connecting shaft, and the thickness of the central adjusting block is designed to be one or more.
In one embodiment, the material of the central adjusting block is high-strength wear-resistant manganese steel.
In one embodiment, an annular cavity is arranged on the baffle ring, and a plurality of threaded holes are formed in the end face of the annular cavity.
In one embodiment, the supporting sleeve is of an annular structure, the inner wall of the supporting sleeve is provided with a sealing groove and a lubricating oil groove, and an inner hole of the supporting sleeve is welded with aluminum bronze with a certain thickness and is installed in the annular cavity of the partition plate ring.
In one embodiment, the flange cover is of an annular structure, and a certain number of through holes are uniformly distributed on the flange cover.
In one embodiment, the end face of the flange cover is provided with a positioning pin and an O-ring sealing groove.
Compared with the prior art, the invention has the main advantages or positive effects that:
1) the connecting mode of the cutter head and the revolving body is a hexagonal head structure, a certain coaxiality clearance is formed between the cutter head and the revolving body, the coaxiality clearance can be adjusted through the central adjusting block, the concentricity of the cutter head and the revolving joint is guaranteed to the maximum extent, the difficulty of processing and installation is greatly simplified, the service life of the revolving joint is prolonged, and the convenience of maintenance is greatly improved.
2) Because the torque of the revolving body during working is provided by the cutter head and is larger, the hexagonal head connection mode is adopted, and the transmission of large torque can be ensured.
3) In the prior art, a cutter head and a revolving body are directly and rigidly connected together through a bolt, the swinging of the revolving body can be caused by the jumping of the cutter head, and in order to ensure the sealing property, the swinging of the revolving body adopts the sealing of a floating structure, and the structure mainly has the defects of short service life and easy leakage of the sealing; the invention adopts a hexagonal connection mode to transmit torque, simultaneously compensates the jumping of the cutter head and the shield body by the central adjusting block, and the original soil bin seal does not compensate the jumping any more, so the structure has reduced installation requirements and greatly prolonged seal life.
Description of the drawings:
fig. 1 is a schematic structural diagram of a center-adjustable rotary joint for a shield tunneling machine according to an embodiment of the present invention;
FIG. 2 is a top view of the connection between the cutter head connecting block and the connecting shaft in the direction of A-A in FIG. 1;
FIG. 3 is a schematic view of the installation of the center adjusting block and the connecting shaft according to an embodiment of the present invention;
FIG. 4 is a schematic view of the installation of a diaphragm ring according to an embodiment of the present invention;
fig. 5 is a schematic view of an inner wall structure of the support sleeve according to an embodiment of the invention.
In the context of the illustration, it is,
a cutter head connecting block 1,
A central adjusting block 2,
A double-lip seal 3,
A baffle ring 5,
A connecting shaft 6,
A supporting sleeve 7,
A flange cover 8,
A rotator 9,
Vd seal 10,
A threaded hole 11,
An annular cavity 12,
A seal groove 13,
A lubricant sump 14.
The specific implementation mode is as follows:
the following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention.
The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.
Referring to fig. 1 in combination with fig. 2 to 5, in an embodiment, a center-adjustable central swivel joint for a shield machine includes a cutter head connecting block 1, a central adjusting block 2, a double-lip seal 3, and a connecting shaft 6; wherein, the cutterhead connecting block 1 is connected with the connecting shaft 6 through a connecting piece, and the coaxiality deviation between the cutterhead connecting block 1 and the connecting shaft 6 is adjusted by the central adjusting block 2 arranged on the connecting shaft 6.
Preferably, the device also comprises a diaphragm ring 5, a support sleeve 7 and a flange cover 8; the partition plate ring 5 is sleeved on the outer side of the connecting shaft 6, the lower portion of the double-lip seal 3 is provided with a supporting sleeve 7 sleeved on the outer side of the connecting shaft, and a flange cover 8 arranged below the supporting sleeve 7 fixes the supporting sleeve 7 between the partition plate ring 5 and the flange cover 8 through a connecting piece.
Preferably, a Vd seal 10 is further included, and the Vd seal 10 is disposed between the support sleeve 7 and the connection shaft 6.
Preferably, the cutter head connecting block 1 is a disc, a hexagon socket-shaped cavity is axially arranged on the disc, and the outer side of the connecting shaft 6 is in a hexagon socket shape and is matched with the hexagon socket-shaped cavity of the disc.
Preferably, the central adjusting block 2 is fixed at an outer hexagonal position at one end of the connecting shaft 6, and the thickness of the central adjusting block 2 is designed to be one or more.
Preferably, the material of the central adjusting block 2 is high-strength wear-resistant manganese steel.
Preferably, an annular cavity is arranged on the partition ring 5, and a plurality of threaded holes are arranged on the end surface of the annular cavity.
Preferably, the support sleeve 7 is of an annular structure, a sealing groove and a lubricating oil groove are formed in the support sleeve, aluminum bronze with a certain thickness is welded in an inner hole of the support sleeve, and the support sleeve is installed in an annular cavity of the partition plate ring 5.
Three seals and three lubricating oil grooves are arranged inside the support sleeve in the embodiment.
Preferably, the flange cover 8 is an annular structure, and a certain number of through holes are uniformly distributed.
Preferably, the end face of the flange cover 8 is provided with a positioning pin and an O-ring sealing groove.
The working principle of the invention is as follows:
the center of shield structure machine blade disc and the central through-hole center regulating block of center swivel joint guarantee, shield structure machine blade disc and center swivel joint pass through the form transmission moment of torsion that the hexagonal connects, center swivel joint's gyration is supported and is relied on to support the cover and provide, leakproofness and lubricity when its gyration is guaranteed to inside three sealed and three lubrication grooves, center swivel joint can not receive the rotatory influence of blade disc when rotatory like this, thereby greatly prolonged service life, the security that the shield structure machine used has also been improved.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The utility model provides a shield constructs machine center swivel joint of adjustable heart, its characterized in that: comprises a cutter head connecting block (1), a central adjusting block (2), a double-lip seal (3) and a connecting shaft (6); wherein,
the cutter head connecting block (1) is connected with the connecting shaft (6) through a connecting piece, and the coaxiality deviation between the cutter head connecting block (1) and the connecting shaft (6) is adjusted through a central adjusting block (2) arranged on the connecting shaft (6); the cutter head connecting block (1) is a disc, a hexagon-shaped cavity is arranged in the axial direction of the disc, and the outer side of the connecting shaft (6) is in a hexagon shape and matched with the hexagon-shaped cavity in the disc.
2. The center-adjustable type center rotary joint for the shield tunneling machine according to claim 1, characterized in that: the device also comprises a partition ring (5), a support sleeve (7) and a flange cover (8); wherein,
the partition plate ring (5) is sleeved on the outer side of the connecting shaft (6), the lower part of the double-lip seal (3) is provided with a supporting sleeve (7) sleeved on the outer side of the connecting shaft, and a flange cover (8) arranged below the supporting sleeve (7) fixes the supporting sleeve (7) between the partition plate ring (5) and the flange cover (8) through a connecting piece.
3. The center-adjustable type center rotary joint for the shield tunneling machine according to claim 2, characterized in that: the Vd sealing device further comprises a Vd seal (10), and the Vd seal (10) is arranged between the support sleeve (7) and the connecting shaft (6).
4. The center-adjustable type center rotary joint for the shield tunneling machine according to claim 1, characterized in that: the central adjusting block (2) is fixed at the outer hexagonal part at one end of the connecting shaft (6), and the thickness of the central adjusting block (2) is designed into one or more types.
5. The center-adjustable central swivel joint for the shield tunneling machine according to claim 4, wherein: the central adjusting block (2) is made of high-strength wear-resistant manganese steel.
6. The center-adjustable type center rotary joint for the shield tunneling machine according to claim 2, characterized in that: an annular cavity (12) is arranged on the partition plate ring (5), and a plurality of threaded holes (11) are formed in the end face of the annular cavity.
7. The center-adjustable type center rotary joint for the shield tunneling machine according to claim 2, characterized in that: the supporting sleeve (7) is of an annular structure, a sealing groove (13) and a lubricating oil groove (14) are formed in the inner wall of the supporting sleeve, aluminum bronze with a certain thickness is welded in an inner hole of the supporting sleeve, and the supporting sleeve is installed in an annular cavity of the partition plate ring (5).
8. The center-adjustable type center rotary joint for the shield tunneling machine according to claim 1, characterized in that: the flange cover (8) is of an annular structure, and a certain number of through holes are uniformly distributed.
9. The center-adjustable type center rotary joint for the shield tunneling machine according to claim 2, characterized in that: and the end surface of the flange cover (8) is provided with a positioning pin and an O-shaped ring sealing groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011421631.2A CN112412484A (en) | 2020-12-08 | 2020-12-08 | Center-adjustable type center rotary joint for shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011421631.2A CN112412484A (en) | 2020-12-08 | 2020-12-08 | Center-adjustable type center rotary joint for shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112412484A true CN112412484A (en) | 2021-02-26 |
Family
ID=74775182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011421631.2A Pending CN112412484A (en) | 2020-12-08 | 2020-12-08 | Center-adjustable type center rotary joint for shield machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112412484A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959699A (en) * | 2021-10-20 | 2022-01-21 | 湖南师范大学 | Method for judging rotary state of hob through hob self-rotation characteristic |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863655A (en) * | 2016-04-01 | 2016-08-17 | 石家庄铁道大学 | Active soil stirring system of large tunnel boring machine |
| CN106948830A (en) * | 2017-05-16 | 2017-07-14 | 郎溪腾旋科技有限公司 | A kind of native storehouse sealing device of novel shield machine |
| CN207027985U (en) * | 2016-12-21 | 2018-02-23 | 成都市联余精密机械有限公司 | A kind of mould core ＆ cavity positioner |
| CN108612535A (en) * | 2018-05-14 | 2018-10-02 | 贵州大学 | A kind of anticlogging slurry type shield machine stirring device |
| CN214403581U (en) * | 2020-12-08 | 2021-10-15 | 龙工(上海)液压有限公司 | Center-adjustable type center rotary joint for shield machine |
-
2020
- 2020-12-08 CN CN202011421631.2A patent/CN112412484A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105863655A (en) * | 2016-04-01 | 2016-08-17 | 石家庄铁道大学 | Active soil stirring system of large tunnel boring machine |
| CN207027985U (en) * | 2016-12-21 | 2018-02-23 | 成都市联余精密机械有限公司 | A kind of mould core ＆ cavity positioner |
| CN106948830A (en) * | 2017-05-16 | 2017-07-14 | 郎溪腾旋科技有限公司 | A kind of native storehouse sealing device of novel shield machine |
| CN108612535A (en) * | 2018-05-14 | 2018-10-02 | 贵州大学 | A kind of anticlogging slurry type shield machine stirring device |
| CN214403581U (en) * | 2020-12-08 | 2021-10-15 | 龙工(上海)液压有限公司 | Center-adjustable type center rotary joint for shield machine |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959699A (en) * | 2021-10-20 | 2022-01-21 | 湖南师范大学 | Method for judging rotary state of hob through hob self-rotation characteristic |
| CN113959699B (en) * | 2021-10-20 | 2024-03-01 | 湖南师范大学 | Method for judging rotary state of hob through rotary characteristic of hob |
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