CN209856203U - Pipe piece bolt structure for resisting relaxation of vibration load stress of train - Google Patents
Pipe piece bolt structure for resisting relaxation of vibration load stress of train Download PDFInfo
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- CN209856203U CN209856203U CN201920415467.0U CN201920415467U CN209856203U CN 209856203 U CN209856203 U CN 209856203U CN 201920415467 U CN201920415467 U CN 201920415467U CN 209856203 U CN209856203 U CN 209856203U
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- gasket
- stress relaxation
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- relaxation
- nut
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Abstract
The utility model relates to a segment bolt structure for resisting the relaxation of train vibration load stress, which comprises an arc bolt, a segment nut and a stress relaxation resistant gasket; the arc bolt comprises an arc screw, one end of the arc screw is a nut, and the other end of the arc screw is provided with a screw thread; the segment nut and the anti-stress relaxation gasket are arranged at the screw thread part of the arc bolt, the anti-stress relaxation gasket is tightly attached to the segment nut at the inner side, and the anti-stress relaxation gasket is tightly attached to the segment at the outer side; damping tooth edges are arranged on two sides of the stress relaxation resistant gasket, the inner side of the stress relaxation resistant gasket is tightly attached to the segment to form friction force, and the outer side of the stress relaxation resistant gasket is tightly attached to the segment nut to form friction force. The utility model discloses an on current section of jurisdiction connecting bolt's basis, increase the stress relaxation gasket, guarantee subway operation in-process, effectively resist the section of jurisdiction bolt stress relaxation that train vibration load brought, satisfy the detachable requirement that the bolt was changed and the section of jurisdiction was changed simultaneously.
Description
Technical Field
The utility model relates to a shield tunnel construction technical field, concretely relates to resist section of jurisdiction bolt structure that train vibration load stress relaxes.
Background
In the shield tunnel construction process, due to the consideration of the durability of the bolts and the reason of replacing the duct pieces, the duct pieces are connected by adopting a detachable bolt method, but under the action of vibration load, the connection method of the bolts is easy to generate stress relaxation.
However, in the subway operation process, the vibration load of the train is very frequent and unavoidable, so the influence of the stress relaxation of the segment bolts under the action of the vibration load of the train for a long time becomes an important factor threatening the safety of the shield structure, and the problem of finding a detachable segment connection method capable of resisting the stress relaxation is called as a focus problem.
Disclosure of Invention
The utility model aims at providing a resist section of jurisdiction bolt structure that train vibration load stress is lax can resist section of jurisdiction bolt stress lax that train vibration load brought at subway operation in-process, improves section of jurisdiction connection structure's durability and stability, satisfies the detachability that bolt change and section of jurisdiction were changed simultaneously.
The utility model discloses the technical scheme who adopts does:
the utility model provides a resist relaxed section of jurisdiction bolt structure of train vibration load stress which characterized in that:
the pipe piece nut comprises an arc bolt, a pipe piece nut and a stress relaxation resistant gasket;
the arc bolt comprises an arc screw, one end of the arc screw is a nut, and the other end of the arc screw is provided with a screw thread;
the segment nut and the anti-stress relaxation gasket are arranged at the screw thread part of the arc bolt, the anti-stress relaxation gasket is tightly attached to the segment nut at the inner side, and the anti-stress relaxation gasket is tightly attached to the segment at the outer side;
damping tooth edges are arranged on two sides of the stress relaxation resistant gasket, the inner side of the stress relaxation resistant gasket is tightly attached to the segment to form friction force, and the outer side of the stress relaxation resistant gasket is tightly attached to the segment nut to form friction force.
The nut of the arc bolt is provided with a flexible washer, the center of the flexible washer is provided with a flexible gasket through hole, the flexible gasket is sleeved outside the arc screw, and the inner side of the flexible gasket is tightly attached to the nut.
The anti-stress relaxation gasket comprises two layers of relaxation sub gaskets, one surface of each relaxation sub gasket is provided with a damping tooth edge, the other surface of each relaxation sub gasket is provided with an occlusion tooth edge, and the occlusion tooth edges of the two relaxation sub gaskets are occluded relatively to form the anti-stress relaxation gasket.
The center of the loosening sub-gasket is provided with a hole which is sleeved outside the arc-shaped screw rod.
The damping tooth edges and the occlusion tooth edges on the two surfaces of the relaxor gasket are radially arranged.
The pitch of the engaging tips of the loosening sub-spacer is larger than the pitch of the damping tips.
The center of the segment nut is an inner threaded hole, and the outer part of the segment nut is an outer hexagonal edge.
The flexible gasket is a rubber gasket.
The utility model has the advantages of it is following:
the utility model discloses an on current section of jurisdiction connecting bolt's basis, increase the stress relaxation gasket, guarantee subway operation in-process, effectively resist the section of jurisdiction bolt stress relaxation that train vibration load brought, satisfy the detachable requirement that the bolt was changed and the section of jurisdiction was changed simultaneously. And the utility model discloses a, it is less to the change of current section of jurisdiction connected mode, has simple structure, and is easy and simple to handle, low cost, facilitate promotion and application.
Drawings
FIG. 1 is an overall view of the present invention;
FIG. 2 is a view of an arc bolt configuration;
FIG. 3 is an elevational view of the segment nut;
FIG. 4 is a plan view of a segment nut;
FIG. 5 is an elevational view of the stress relaxation resistant gasket;
FIG. 6 is a plan view of the biting tips;
FIG. 7 is a plan view of a damping tip;
FIG. 8 is an elevational view of the flexible gasket;
fig. 9 is a plan view of the flexible gasket.
In the figure, 1-arc bolt, 2-segment nut, 3-stress relaxation resistant gasket, 4-flexible washer, 101-arc screw, 103-nut, 102-screw thread; 201-external hexagonal prism, 202-internal thread hole; 301-relaxation sub-spacer, 302-damping tip, 303-occlusion tip; 401-flexible gasket outer ring, 402-flexible gasket perforation.
Detailed Description
The present invention will be described in detail with reference to the following embodiments.
The utility model relates to a resist relaxed section of jurisdiction bolt structure of train vibration load stress, including arc bolt 1, section of jurisdiction nut 2 and stress-resistant gasket 3 that relaxes. The arc bolt 1 comprises an arc screw 101, one end of the arc screw 101 is a nut 103, and the other end is provided with a screw thread 102; the segment nut 2 and the anti-stress relaxation gasket 3 are arranged at the screw thread part of the arc bolt 1, and the anti-stress relaxation gasket 3 is tightly attached to the segment nut 2 at the inner side; damping tooth edges 302 are arranged on two sides of the stress relaxation resistant gasket 3, the inner side of the stress relaxation resistant gasket clings to the segment to form friction force, and the outer side of the stress relaxation resistant gasket clings to the segment nut 2 to form friction force. The center of the segment nut 2 is provided with an inner threaded hole 202, and the outer part is provided with an outer hexagonal edge 201.
The nut 103 of the arc bolt 1 is provided with a flexible washer 4, the center of the flexible washer 4 is provided with a flexible gasket perforation 402 which is sleeved outside the arc screw 101 and tightly attached to the nut 103 at the inner side and tightly attached to the duct piece at the outer side. The flexible gasket 4 is a rubber gasket.
The anti-stress relaxation gasket 3 comprises two layers of relaxation sub gaskets 301, one surface of each relaxation sub gasket 301 is provided with a damping tooth edge 302, the other surface of each relaxation sub gasket 301 is provided with an occlusion tooth edge 303, and the two relaxation sub gaskets 301 are occluded with the occlusion tooth edges 303 relatively to form the anti-stress relaxation gasket 3. The center of the loosening sub-gasket 301 is provided with a hole which is sleeved outside the arc-shaped screw 101. The damping tips 302 and the engaging tips 303 on both sides of the loosening element shim 301 are radially arranged, and the pitch of the engaging tips 303 is larger than that of the damping tips 302. According to the vibration relaxation bolt occlusion test, bolts with different tooth pitches are arranged to be beneficial to resisting stress relaxation.
After the flexible gasket 4 is installed on the arc-shaped screw 101, the arc-shaped bolt 1 is inserted into a bolt hole of a pipe piece, the occlusion tooth edges 303 of the stress relaxation resistant gasket 3 are occluded with each other and then installed on the thread 102 of the arc-shaped bolt 1, the damping tooth edges 302 are attached to the pipe piece, the pipe piece nut 2 is rotatably installed on the thread 102 of the arc-shaped bolt 1 through the inner thread hole 202 and gradually compresses the stress relaxation resistant gasket 3, the occlusion tooth edges 303 are gradually occluded through the friction force of the damping tooth edges 302, and the damping tooth edges 302 on the other side are tightly buckled on the surface of the pipe piece to form the friction force.
The content of the present invention is not limited to the examples, and any equivalent transformation adopted by the technical solution of the present invention is covered by the claims of the present invention by those skilled in the art through reading the present invention.
Claims (8)
1. The utility model provides a resist relaxed section of jurisdiction bolt structure of train vibration load stress which characterized in that:
comprises an arc bolt (1), a segment nut (2) and a stress relaxation resistant gasket (3);
the arc bolt (1) comprises an arc screw (101), one end of the arc screw (101) is provided with a nut (103), and the other end is provided with a screw thread (102);
the segment nut (2) and the anti-stress relaxation gasket (3) are arranged at the screw thread part of the arc bolt (1), the anti-stress relaxation gasket (3) is tightly attached to the segment nut (2) at the inner side, and the segment is tightly attached to the outer side;
damping tooth edges (302) are arranged on two sides of the stress relaxation resistant gasket (3), the inner side of the stress relaxation resistant gasket clings to the segment to form friction force, and the outer side of the stress relaxation resistant gasket clings to the segment nut (2) to form friction force.
2. The segment bolt structure for resisting the stress relaxation of train vibration loads according to claim 1, wherein:
a flexible washer (4) is arranged at the nut (103) of the arc bolt (1), a flexible gasket through hole (402) is formed in the center of the flexible washer (4), and the flexible gasket is sleeved outside the arc screw (101) and tightly attached to the nut (103) on the inner side.
3. The segment bolt structure for resisting the stress relaxation of train vibration loads according to claim 1, wherein:
the anti-stress relaxation gasket (3) comprises two layers of relaxation sub gaskets (301), one surface of each relaxation sub gasket (301) is provided with a damping tooth edge (302), the other surface of each relaxation sub gasket is provided with an occlusion tooth edge (303), and the two relaxation sub gaskets (301) are occluded with the occlusion tooth edges (303) relatively to form the anti-stress relaxation gasket (3).
4. The segment bolt structure for resisting the stress relaxation of train vibration loads according to claim 3, wherein:
the center of the relaxation piece gasket (301) is provided with a hole and is sleeved outside the arc-shaped screw rod (101).
5. The segment bolt structure for resisting the stress relaxation of train vibration loads according to claim 3, wherein:
the damping tooth edges (302) and the occlusion tooth edges (303) on the two surfaces of the relaxation sub-gasket (301) are radially arranged.
6. The segment bolt structure for resisting the stress relaxation of train vibration loads according to claim 5, wherein:
the pitch of the engaging tips (303) of the loosening sub-spacer (301) is larger than the pitch of the damping tips (302).
7. The segment bolt structure for resisting the stress relaxation of train vibration loads according to claim 1, wherein:
the center of the segment nut (2) is provided with an inner threaded hole (202), and the outer part of the segment nut is provided with an outer hexagonal edge (201).
8. The segment bolt structure for resisting the stress relaxation of train vibration loads according to claim 2, wherein:
the flexible gasket (4) is a rubber gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920415467.0U CN209856203U (en) | 2019-03-29 | 2019-03-29 | Pipe piece bolt structure for resisting relaxation of vibration load stress of train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920415467.0U CN209856203U (en) | 2019-03-29 | 2019-03-29 | Pipe piece bolt structure for resisting relaxation of vibration load stress of train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209856203U true CN209856203U (en) | 2019-12-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920415467.0U Active CN209856203U (en) | 2019-03-29 | 2019-03-29 | Pipe piece bolt structure for resisting relaxation of vibration load stress of train |
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| Country | Link |
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| CN (1) | CN209856203U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043552A (en) * | 2019-03-29 | 2019-07-23 | 中铁第一勘察设计院集团有限公司 | Resist the segment bolt structure of vibration loads of train stress relaxation |
| CN111894145A (en) * | 2020-09-04 | 2020-11-06 | 山东建筑大学 | Double-section high-strength bolt anti-loosening connecting node for space grid structure and construction and installation method thereof |
-
2019
- 2019-03-29 CN CN201920415467.0U patent/CN209856203U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110043552A (en) * | 2019-03-29 | 2019-07-23 | 中铁第一勘察设计院集团有限公司 | Resist the segment bolt structure of vibration loads of train stress relaxation |
| CN111894145A (en) * | 2020-09-04 | 2020-11-06 | 山东建筑大学 | Double-section high-strength bolt anti-loosening connecting node for space grid structure and construction and installation method thereof |
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