CN213235061U - Central rotary joint sealing component in earth pressure balance type shield machine - Google Patents
Central rotary joint sealing component in earth pressure balance type shield machine Download PDFInfo
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- CN213235061U CN213235061U CN202022098990.0U CN202022098990U CN213235061U CN 213235061 U CN213235061 U CN 213235061U CN 202022098990 U CN202022098990 U CN 202022098990U CN 213235061 U CN213235061 U CN 213235061U
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- earth pressure
- rubber lip
- metal framework
- shield machine
- pressure balanced
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Abstract
The utility model provides a central swivel joint seal assembly in earth pressure balance type shield machine, including metal framework and rubber lip, the metal framework with the rubber lip is through integrative vulcanization molding, the metal framework is "L" shape, one end of rubber lip is "U" shape, the other end of rubber lip is "L" shape; the metal framework and the rubber lip are integrally vulcanized and formed, and the L-shaped metal framework can provide good wear resistance in the working condition of facing a large amount of mud and sand grinding while providing good supporting performance.
Description
Technical Field
The utility model relates to a shield constructs the machine field, concretely relates to earth pressure balance formula shield constructs central authorities' swivel joint seal assembly in machinery.
Background
The maintenance of the shield machine is extremely complex, maintenance nodes need to be calculated in advance on the working route of the shield machine, tunnels need to be excavated at the corresponding nodes, and the shield machine is lifted out of the tunnels and pulled to a maintenance base for maintenance.
The utility model discloses an inventor discovers, and the shield constructs the machine and can meet abominable operating mode such as a large amount of muddy water, silt and lubricating grease at the job site, and this makes the design of whole single material be difficult to the grinding wearing and tearing that the medium brought, and current sealing performance is not good, and the bearing that often leads to central rotary joint rear end is died by muddy water and silt card, and life receives serious influence, finally leads to the shield to construct the machine and need maintain in advance. Therefore, it is necessary to develop a central rotary joint sealing component in earth pressure balance type shield machinery.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to solve above-mentioned problem, provide a central authorities' swivel joint seal assembly in earth pressure balance formula shield constructs machinery, metal framework and rubber lip are by integrative vulcanization moulding, and the metal framework of "L" shape can provide good wear resistance in the working condition in the face of a large amount of muddy water and silt grinding when providing good support performance.
In order to achieve the purpose, the utility model adopts the following technical scheme.
The utility model provides a central authorities swivel joint seal assembly in earth pressure balanced type shield constructs machinery, includes metal framework and rubber lip, metal framework with the rubber lip is through integrative vulcanization moulding, metal framework is "L" shape, the one end of rubber lip is "U" shape, the other end of rubber lip is "L" shape.
Furthermore, the L-shaped end of the rubber lip is arranged close to the metal framework.
Furthermore, the U-shaped end of the rubber lip is far away from the metal framework.
Further, the U-shaped end of the rubber lip includes a first edge and a second edge.
Further, a first obtuse angle is arranged on the first edge far away from the metal framework.
Further, the first obtuse angle is 115 degrees to 125 degrees.
Further, the first obtuse angle is 120 degrees.
Further, a second obtuse angle is arranged at the position, close to the metal framework, of the second edge.
Further, the second obtuse angle is 125 to 135 degrees.
Further, the second obtuse angle is 130 degrees.
The utility model relates to a central authorities 'swivel joint seal assembly's among earth pressure balance formula shield structure machinery positive effect is:
(1) the utility model discloses a metal framework and rubber lip are by integrative vulcanization molding, and the metal framework of "L" shape can provide good wear resistance originally in the working condition in the face of a great amount of muddy water and silt grinding when providing good support performance.
(2) The utility model discloses a design of "U" shape rubber lip for the lip possesses great flexible space, when dealing with great pivot and beating, longer and thinner "U" shape rubber lip can hug closely the pivot of beating constantly and realize sealing.
(3) The utility model adopts a floating sealing method, namely, the sealing is not realized through interference at the excircle, but a certain space is released, so that the sealing can realize floating following along with the jumping of the rotating shaft, and the sealing product is kept still relative to the rotating shaft in the aspect of jumping of the shape and position, thus the rubber lip only needs to deal with the relative rotation motion caused by the rotating shaft, the service life of the sealing is prolonged, and the whole sealing performance is improved; meanwhile, the rubber lip in the new design can compensate the situation that the outer circle floats and can not be sealed, so that the product can be completely sealed.
Drawings
Fig. 1 is a schematic diagram provided by an embodiment of the present invention.
The reference numerals in the figures are respectively:
1. a metal skeleton; 2. a rubber lip; 3. a first side; 4. a second edge; 5. a first obtuse angle; 6. a second obtuse angle.
Detailed Description
The following description is given of the embodiment of the sealing component of the central swivel joint in the earth pressure balance type shield machine according to the present invention with reference to the accompanying drawings, but it should be noted that: the described embodiments are not intended to limit the practice of the invention. All adopt the utility model discloses a similar structure and similar change all should go into the utility model discloses a protection scope. The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the embodiments, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.
See fig. 1. The utility model provides a central authorities swivel joint seal assembly in earth pressure balanced type shield constructs machinery, includes metal framework 1 and rubber lip 2, metal framework 1 with rubber lip 2 is through integrated vulcanization shaping, metal framework 1 is "L" shape, the one end of rubber lip 2 is "U" shape, the other end of rubber lip 2 is "L" shape.
The L-shaped end of the rubber lip 2 is arranged close to the metal framework 1. The U-shaped end of the rubber lip 2 is far away from the metal framework 1. The "U" shaped end of the rubber lip 2 comprises a first edge 3 and a second edge 4. A first obtuse angle 5 is arranged on the first edge 3 far away from the metal framework 1. The first obtuse angle 5 is 115 degrees to 125 degrees. The first obtuse angle 5 is 120 degrees. The second edge 4 is provided with a second obtuse angle 6 near the metal framework 1. The second obtuse angle 6 is 125 to 135 degrees. The second obtuse angle 6 is 130 degrees. In another embodiment, the first obtuse angle 5 is 125 degrees and the second obtuse angle 6 is 135 degrees.
The metal framework 1 and the rubber lip 2 are integrally vulcanized and formed, and the L-shaped metal framework 1 can provide good wear resistance in the working condition of facing a large amount of mud and sand grinding while providing good supporting performance.
Adopt the design of "U" shape rubber lip 2 for the lip possesses great deformable space, when dealing with great pivot and beating, longer and thinner "U" shape rubber lip 2 can hug closely the pivot of beating constantly and realize sealing.
The method of floating sealing is adopted, namely, sealing is not realized at the excircle through interference any more, but a certain space is released, so that floating following can be realized along with the jumping of the rotating shaft by sealing, and a sealed product is kept still relative to the rotating shaft in the aspect of shape and position jumping, so that the rubber lip 2 only needs to deal with relative rotation motion caused by the rotating shaft, the service life of sealing is prolonged, and the integral sealing performance is improved; meanwhile, the rubber lip 2 in the new design can compensate the situation that the outer circle floats and can not be sealed, so that the product can be completely sealed.
Claims (10)
1. The utility model provides a central authorities swivel joint seal assembly among earth pressure balanced type shield structure machinery which characterized in that, includes metal framework and rubber lip, metal framework with the rubber lip is through integrated vulcanization shaping, metal framework is "L" shape, the one end of rubber lip is "U" shape, the other end of rubber lip is "L" shape.
2. The central rotary joint sealing component in an earth pressure balanced shield machine according to claim 1, wherein the "L" shaped end of the rubber lip is disposed near the metal skeleton.
3. The central rotary joint sealing component in an earth pressure balanced shield machine according to claim 1, wherein the "U" -shaped end of the rubber lip is disposed away from the metal skeleton.
4. The central swivel joint seal assembly in an earth pressure balanced shield machine of claim 1, wherein the "U" shaped end of the rubber lip includes a first side and a second side.
5. The central rotating joint sealing member in an earth pressure balanced shield tunneling machine according to claim 4, wherein a first obtuse angle is provided on the first edge away from the metal framework.
6. The central rotating joint seal component in an earth pressure balanced shield machine of claim 5, wherein the first obtuse angle is 115 degrees to 125 degrees.
7. The central rotating joint seal component in an earth pressure balanced shield machine of claim 6, wherein the first obtuse angle is 120 degrees.
8. The central rotating joint sealing member in an earth pressure balanced shield tunneling machine according to claim 4, wherein the second edge is provided with a second obtuse angle near the metal framework.
9. The central rotating joint seal component in an earth pressure balanced shield machine of claim 8, wherein the second obtuse angle is 125 degrees to 135 degrees.
10. The central rotating joint seal component in an earth pressure balanced shield machine of claim 9, wherein the second obtuse angle is 130 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022098990.0U CN213235061U (en) | 2020-09-23 | 2020-09-23 | Central rotary joint sealing component in earth pressure balance type shield machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022098990.0U CN213235061U (en) | 2020-09-23 | 2020-09-23 | Central rotary joint sealing component in earth pressure balance type shield machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213235061U true CN213235061U (en) | 2021-05-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022098990.0U Active CN213235061U (en) | 2020-09-23 | 2020-09-23 | Central rotary joint sealing component in earth pressure balance type shield machine |
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| CN (1) | CN213235061U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113561394A (en) * | 2021-08-12 | 2021-10-29 | 西北橡胶塑料研究设计院有限公司 | Main drive rubber sealing element of shield tunneling machine and forming method thereof |
-
2020
- 2020-09-23 CN CN202022098990.0U patent/CN213235061U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113561394A (en) * | 2021-08-12 | 2021-10-29 | 西北橡胶塑料研究设计院有限公司 | Main drive rubber sealing element of shield tunneling machine and forming method thereof |
| CN113561394B (en) * | 2021-08-12 | 2023-09-26 | 西北橡胶塑料研究设计院有限公司 | Main driving rubber sealing element of shield tunneling machine and forming method thereof |
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