CN214240813U - Sealing structure and bogie - Google Patents
Sealing structure and bogie Download PDFInfo
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- CN214240813U CN214240813U CN202120214066.6U CN202120214066U CN214240813U CN 214240813 U CN214240813 U CN 214240813U CN 202120214066 U CN202120214066 U CN 202120214066U CN 214240813 U CN214240813 U CN 214240813U
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- composite material
- metal connecting
- connecting seat
- material cavity
- sealing structure
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
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Abstract
The utility model discloses a sealing structure and a bogie, wherein the sealing structure comprises a composite material cavity body used as an additional air chamber and a metal connecting seat arranged in the composite material cavity body; the metal connecting seat is positioned outside the composite material cavity body, and a metal connecting plate corresponding to the metal connecting seat is arranged inside the composite material cavity body; the metal connecting seat is provided with a boss, the top of the boss is provided with a bolt hole penetrating into the composite material cavity, the metal connecting seat, the composite material cavity and the metal connecting plate are connected through bolts, and the boss is provided with a sealing cover used for sealing the outer port of the bolt hole. The sealing structure can greatly save the sealing cost of the metal piece, improve the air tightness reliability and prolong the service life of the structure.
Description
Technical Field
The utility model relates to a rail vehicle technical field especially relates to seal structure on rail vehicle bogie. The utility model discloses still relate to and be equipped with seal structure's bogie.
Background
The suspension system of the railway vehicle is generally provided with an air spring as an elastic element, the air spring has a nonlinear characteristic, the running performance of the vehicle can be ensured to be soft when the vehicle runs normally, and the amplitude of the vehicle body is limited in accidental occasions such as passing through a curve, a turnout and the like.
In order to improve the performance of an air suspension system, an air spring is generally provided with an additional air chamber, a main air chamber and the additional air chamber are connected with an electromagnetic valve through pipelines, and when the air spring is excited, air in the air chamber flows between the two air chambers through a throttling hole under the action of pressure difference, so that the adjusting range of the dynamic stiffness is wider.
The cross beam of the bogie is of a hollow structure, so the cross beam is often used as an additional air chamber, meanwhile, in order to ensure the basic function of the cross beam, metal parts such as metal connecting seats and the like need to be installed on the cross beam, in the traditional bogie design, the cross beam adopts a structure welded by metal connecting plates, the parts such as the metal connecting seats and the like on the cross beam can be directly welded on the cross beam, and for a composite material bogie, after the composite material is used for designing, the composite material bogie still can be used as the additional air chamber of the air spring, but due to the adoption of the composite material, the welding condition is not provided, how to install the metal parts and simultaneously ensure the air tightness of the cross beam becomes a technical problem needing to be solved, and if the structural design is unreasonable, a great air leakage risk exists at the connecting structure in the product service process.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a seal structure. The sealing structure can greatly save the sealing cost of the metal piece, improve the air tightness reliability and prolong the service life of the structure.
Another object of the present invention is to provide a bogie provided with the seal structure.
In order to achieve the above object, the present invention provides a sealing structure, which comprises a composite material cavity body used as an additional air chamber and a metal connecting seat arranged in the composite material cavity body; the metal connecting seat is positioned outside the composite material cavity body, and a metal connecting plate corresponding to the metal connecting seat is arranged inside the composite material cavity body; the metal connecting seat is provided with a boss, the top of the boss is provided with a bolt hole penetrating into the composite material cavity, the metal connecting seat, the composite material cavity and the metal connecting plate are connected through bolts, and the boss is provided with a sealing cover used for sealing the outer port of the bolt hole.
Preferably, the boss is provided with a thread at an outer periphery, and the cap is connected to the boss by the thread.
Preferably, one end or two ends of the composite material cavity body are provided with plugging end heads which are fixed with the composite material cavity body to form a whole at the opening.
Preferably, the plugging end head and the composite material hollow cavity are jointly glued or riveted.
Preferably, the metal connecting seat is bonded to the composite material cavity body in advance through structural adhesive; and/or a sealant is coated on the edge of the metal connecting seat, which is in contact with the composite material cavity body, and the cross section of the metal connecting seat is triangular after the sealant is scraped.
Preferably, the metal connecting plate is fixed on the inner wall of the composite material cavity in advance in an adhesion mode.
Preferably, the bolt head of the bolt retracts into the outer port of the bolt hole, and the bolt head is filled with sealant.
Preferably, the material of the composite material cavity is carbon fiber.
Preferably, the composite material hollow cavity is a cross beam of the bogie.
In order to achieve the above another object, the present invention provides a bogie, including a side beam, a cross beam and a longitudinal beam, wherein the cross beam has the sealing structure described in any one of the above, and the cross beam is the composite material hollow cavity in the sealing structure, which is used as an additional air chamber of an air spring.
The utility model provides a seal structure, be equipped with the metal connecting plate that is located the internal portion of combined material cavity and the metal connecting seat that is located the external portion of combined material cavity, be equipped with the boss on the metal connecting seat, the combined material cavity body and metal connecting plate are connected through the bolt that penetrates from the boss, and be equipped with the closing cap of sealed bolt hole on the boss, can cooperate the sealing rubber circle to use when connecting metal parts, not only sealing reliability is high, moreover, it is not high to being connected the face machining precision requirement, can maintain from the outside, have advantages such as low-cost maintenance.
The utility model provides a bogie, its crossbeam has seal structure, because seal structure has above-mentioned technological effect, then the bogie that is equipped with this seal structure should also have corresponding technological effect.
Drawings
Fig. 1 is a schematic view of a sealing structure (bolts are omitted in the figure) disclosed in an embodiment of the present invention.
In the figure:
1. composite material cavity 2, metal connecting seat 21, boss 3, metal connecting plate 4, sealing cover 5, bolt hole 6, sealing end 7, sealant 8 and drain valve
Detailed Description
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description.
In this document, terms such as "upper, lower, left, right" and the like are established based on positional relationships shown in the drawings, and the corresponding positional relationships may vary depending on the drawings, and therefore, they are not to be construed as absolute limitations on the scope of protection; moreover, relational terms such as "first" and "second," and the like, may be used solely to distinguish one element from another element having the same name, without necessarily requiring or implying any actual such relationship or order between such elements.
Referring to fig. 1, fig. 1 is a schematic view of a sealing structure (bolts are omitted in the figure) disclosed in an embodiment of the present invention.
As shown in the figure, in an embodiment, the sealing structure provided by the present invention mainly comprises a composite material cavity 1, a metal connecting seat 2, a metal connecting plate 3, a bolt (not shown in the figure), and a sealing cover 4.
The material of the combined material cavity body 1 is the carbon fiber, specifically can be the crossbeam of bogie, because its inside is hollow structure, consequently the additional air chamber that is used as air spring in the bogie simultaneously, for the convenience of connecting install other metal parts on the combined material cavity body 1, need set up metal connecting seat 2 on the combined material cavity body 1, metal connecting seat 2 is located the outside of the combined material cavity body 1, the inside of the combined material cavity body 1 is equipped with the metal connecting plate 3 that the position corresponds to metal connecting seat 2, for the convenience of drainage simultaneously, the bottom of the combined material cavity body 1 is equipped with the drain valve 8 that is located the low level department.
Because metal connecting seat 2, the combined material cavity body 1 and metal connecting plate 3 are connected through the bolt, for avoiding bolt hole 5 to form the gas circuit passageway and cause and reveal, can further set up closing cap 4 on boss 21, boss 21 is equipped with the screw thread in week portion, and closing cap 4 passes through threaded connection in boss 21 to through the outer port of closing cap 4 sealed bolt hole 5. Thus, even if gas flows outward along the bolt hole 5, the gas is blocked by the cover 4 at the boss 21, and does not leak outward.
The composite material cavity body 1 is a cylindrical or tubular structure, in this embodiment, a carbon fiber tube, the left end and the right end of which are transversely through openings, and plugging end heads 6 are respectively installed at the openings, and the plugging end heads 6 and the composite material cavity body 1 are fixed to form a whole.
The inner wall of the composite material cavity body 1 is fixed in advance to the mode that the metal connecting plate 3 accessible was bonded, and metal connecting seat 2 accessible structure glue bonds in advance in the composite material cavity body 1, and the edge that metal connecting seat 2 and the composite material cavity body 1 contacted is smeared sealed glue 7, is triangle-shaped on the cross-section after sealed glue 7 scrapes, and the bolt head of bolt is retracted in the outer port of bolt hole 5 to it has sealed glue to fill in at bolt head department.
The specific production process comprises the following steps:
s101, preparing a carbon fiber tube with good air tightness through a winding process;
s102, processing a bolt hole 5 in a position where the carbon fiber pipe needs to be mechanically connected according to design requirements;
s103, fixing the internal metal connecting plate 3 on the inner wall of the carbon fiber pipe in an adhesion mode to align bolt holes 5 of the internal metal connecting plate and the carbon fiber pipe;
s104, fixing the plugging end heads 6 at two ends of the carbon fiber pipe to form a whole (the fixing method can be realized by co-adhesive bonding or can be realized by a bonding and riveting combination mode);
s105, coating structural adhesive on the metal connecting seat 2, adhering the structural adhesive to the designed position of the carbon fiber pipe, aligning the bolt hole 5 of the metal connecting seat with the bolt hole 5 on the carbon fiber pipe, connecting the metal connecting seat 2, the carbon fiber pipe and the internal metal connecting plate 3 by using a bolt, filling the bolt head lower than the upper end opening of the boss 21 on the metal connecting seat 2 by using the sealant, and screwing a sealing cover 4 made of a metal material on the outer side thread of the bolt;
s106, coating a sealant 7 on the edge of the metal connecting seat 2, which is in contact with the carbon fiber, and scraping the edge into a triangle;
s107, curing to form an integral structure.
The above embodiments are merely preferred embodiments of the present invention, and are not limited thereto, and different embodiments can be obtained by performing targeted adjustment according to actual needs. For example, although only two bolt holes are shown in the figure, in practice, the metal connecting seat 2, the composite material hollow cavity 1 and the metal connecting plate 3 can be connected by a larger number of bolts; or, the metal connecting plate 3 is an arc plate or a flat plate, etc. according to the shape of the composite material cavity body 1. This is not illustrated here, since many implementations are possible.
The utility model discloses an airtight passageway to being connected metal connecting seat 2 seals, has solved the gas leakage problem that exists when combined material pipe or a section of thick bamboo use as airtight function, can greatly save the sealed cost of metalwork, can improve airtight reliability and structure life.
It should be noted that in the present embodiment, for clearly showing the structure of the axial alignment of the bolt holes 5, the bolts are omitted in the drawings, but the omission does not affect the technical solution of the present invention reproduced by those skilled in the art.
In addition to above-mentioned seal structure, the utility model discloses still provide a bogie, specifically can be motor car bogie or trailer bogie, including curb girder, crossbeam and longeron, wherein, the crossbeam has the seal structure of above-mentioned description, and the crossbeam is the combined material cavity body 1 in the seal structure, and it is used as the additional air chamber of bogie air spring, all the other structures of relevant bogie, please refer to prior art, and this text is no longer repeated.
It is right above that the utility model provides a seal structure and bogie have carried out detailed introduction. The principles and embodiments of the present invention have been explained herein using specific examples, and the above descriptions of the embodiments are only used to help understand the core concepts of the present invention. It should be noted that, for those skilled in the art, without departing from the principle of the present invention, the present invention can be further modified and modified, and such modifications and modifications also fall within the protection scope of the appended claims.
Claims (10)
1. The sealing structure is characterized by comprising a composite material cavity body (1) used as an additional air chamber and a metal connecting seat (2) arranged in the composite material cavity body (1); the metal connecting seat (2) is positioned outside the composite material cavity body (1), and a metal connecting plate (3) corresponding to the metal connecting seat (2) is arranged inside the composite material cavity body (1); the metal connecting seat (2) is provided with a boss (21), the top of the boss (21) is provided with a bolt hole (5) penetrating through the composite material cavity body (1), the metal connecting seat (2), the composite material cavity body (1) and the metal connecting plate (3) are connected through bolts, and a sealing cover (4) used for sealing an outer port of the bolt hole is arranged on the boss (21).
2. The sealing structure according to claim 1, characterized in that the boss (21) is threaded at the outer periphery, and the cover (4) is connected to the boss (21) by means of a thread.
3. The sealing structure according to claim 1, characterized in that one or both ends of the composite material cavity (1) are provided with a plugging end head (6) at the opening to be fixed integrally therewith.
4. The sealing structure of claim 3, wherein the plugging tip (6) is co-glued or riveted to the composite material hollow body (1).
5. The sealing structure according to claim 1, wherein the metal connecting seat (2) is pre-bonded to the composite material cavity body (1) by structural adhesive; and/or a sealant (7) is coated on the edge of the metal connecting seat (2) which is in contact with the composite material cavity body (1), and the cross section of the sealant (7) is triangular after being scraped.
6. The sealing structure according to claim 1, characterized in that the metal connecting plate (3) is fixed in advance to the inner wall of the composite material hollow cavity (1) by means of bonding.
7. The seal structure of claim 1, wherein a bolt head of the bolt is retracted into an outer port of the bolt hole and is filled with a sealant at the bolt head.
8. The sealing structure according to any one of claims 1 to 7, characterized in that the material of the composite material hollow cavity (1) is carbon fiber.
9. The sealing structure according to claim 8, characterized in that the composite material hollow body (1) is a cross beam of a bogie.
10. Bogie comprising side beams, cross beams and longitudinal beams, characterized in that the cross beams have a sealing structure according to any of the preceding claims 1 to 9, the cross beams being the composite empty cavities (1) in the sealing structure, which act as additional air chambers for air springs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120214066.6U CN214240813U (en) | 2021-01-26 | 2021-01-26 | Sealing structure and bogie |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120214066.6U CN214240813U (en) | 2021-01-26 | 2021-01-26 | Sealing structure and bogie |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214240813U true CN214240813U (en) | 2021-09-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120214066.6U Active CN214240813U (en) | 2021-01-26 | 2021-01-26 | Sealing structure and bogie |
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| Country | Link |
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| CN (1) | CN214240813U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753092A (en) * | 2021-09-26 | 2021-12-07 | 中车青岛四方机车车辆股份有限公司 | Cross beam, framework, bogie, rail vehicle and cross beam forming process |
| CN113997970A (en) * | 2021-09-26 | 2022-02-01 | 中车青岛四方机车车辆股份有限公司 | Pipe structure, bogie and rail vehicle |
-
2021
- 2021-01-26 CN CN202120214066.6U patent/CN214240813U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113753092A (en) * | 2021-09-26 | 2021-12-07 | 中车青岛四方机车车辆股份有限公司 | Cross beam, framework, bogie, rail vehicle and cross beam forming process |
| CN113997970A (en) * | 2021-09-26 | 2022-02-01 | 中车青岛四方机车车辆股份有限公司 | Pipe structure, bogie and rail vehicle |
| CN113997970B (en) * | 2021-09-26 | 2023-03-14 | 中车青岛四方机车车辆股份有限公司 | Pipe structure, bogie and rail vehicle |
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