CN215171659U - Corrugated pipe sealing structure and tooth type coupling using same - Google Patents
Corrugated pipe sealing structure and tooth type coupling using same Download PDFInfo
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- CN215171659U CN215171659U CN202121576058.2U CN202121576058U CN215171659U CN 215171659 U CN215171659 U CN 215171659U CN 202121576058 U CN202121576058 U CN 202121576058U CN 215171659 U CN215171659 U CN 215171659U
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Abstract
The utility model discloses a bellows seal structure and use its tooth-like shaft coupling belongs to shaft coupling seal structure field. The utility model discloses a bellows seal structure, including bellows, first clamping ring, first sealing washer, second clamping ring and second sealing washer, the one end of bellows compresses tightly through the second clamping ring and fixes on the tooth cover end cover of interior tooth cover, and the second clamping ring is fixed in on the tooth cover end cover through second clamping ring bolt, and the second sealing washer is located at least between the corresponding end turn-ups of tooth cover end cover and bellows, when sealing up lubricating cavity, seals up the screw-thread fit clearance of second clamping ring bolt. Through the reasonable arrangement of the pressing ring bolt and the sealing ring, the gap between the sealing ring sealing flange and the tooth sleeve end cover is sealed, the thread gap of the bolt is also sealed, the lubricating medium is effectively prevented from leaking from the gap between the threaded holes of the pressing ring bolt, the sealing performance of the corrugated pipe sealing structure of the tooth type coupler is improved, and the working stability and the service life of the coupler are improved.
Description
Technical Field
The utility model relates to a tooth-like shaft coupling, more specifically say, relate to a bellows seal structure and use its tooth-like shaft coupling.
Background
The drum-shaped tooth type coupling is one of key components of transmission, steering and driving systems of subways, light rail trains, high-speed motor train units and the like. The drum-shaped tooth type coupling has different sealing forms, wherein the tooth type coupling adopting corrugated pipe sealing is more, because only metal corrugated pipe sealing can meet the requirement of lubricating oil or lubricating grease on extremely high sealing performance at present, in particular to a high and cold train.
The connection tightness of the bellows also directly determines the sealing performance of the tooth coupling. The corrugated pipe sealing structure of the drum-shaped tooth type coupling is mainly formed by sequentially connecting an outer tooth shaft, a flange, a corrugated pipe, a sealing ring and an inner tooth sleeve, wherein one end of the corrugated pipe is connected to the inner tooth sleeve, and the other end of the corrugated pipe is connected to the outer tooth shaft through the flange. The connection mode between the corrugated pipe and the inner gear sleeve mainly comprises the following two modes, one mode is that one end of the corrugated pipe is connected with the inner gear sleeve in a welding mode after being flanged, the corrugated pipe is difficult to disassemble and maintain after being connected in the mode, and sealing failure is easily caused after welding spots are welded; the other kind is that the one end turn-ups of utilizing the clamping ring with the bellows is pressed on the internal tooth cover, utilize the bolt fastening clamping ring to realize the sealing connection of bellows and internal tooth cover, this kind of mode is connected conveniently, the dismouting is simple, but the current design does not all consider the connecting bolt of clamping ring and the mounted position rationality of sealing washer, all locate the outside in confined space with the sealing washer, this just leads to bolt department not to obtain fine sealing, the bolt department seepage from the clamping ring of lubricated medium can often be seen, the long-term seepage of lubricated medium leads to the lubrication failure of tooth-type coupling easily.
Based on the above problems of the existing bellows sealing structure, there is a need to improve the sealing performance of the tooth coupling, and improve the service life and the working stability of the tooth coupling.
Disclosure of Invention
1. Technical problem to be solved by the utility model
The utility model discloses an it is not tight and lead to the not enough of lubricant easily by clamping ring bolt department seepage that the bellows seal structure who overcomes current tooth-type shaft coupling seals, provides a bellows seal structure and uses its tooth-type shaft coupling, adopts the technical scheme of the utility model, through carrying out reasonable setting to clamping ring bolt and sealing washer, when making the sealed turn-ups of sealing washer and tooth cover end cover clearance, also seal the screw hole clearance of clamping ring bolt, effectively prevented the lubricant from the screw hole clearance seepage of clamping ring bolt, improved the sealed tightness of the bellows seal structure of tooth-type shaft coupling, and then improved tooth-type shaft coupling's job stabilization nature and life.
2. Technical scheme
In order to achieve the above purpose, the utility model provides a technical scheme does:
the utility model discloses a bellows seal structure installs between interior tooth cover and external tooth axle, including bellows, first clamping ring, first sealing washer, second clamping ring and second sealing washer, the one end of bellows compress tightly through first clamping ring and fix on the external tooth axle, first clamping ring be fixed in on the external tooth axle through first clamping ring bolt fastening, first sealing washer locate between the tip that corresponds of external tooth axle and bellows, the other end of bellows compress tightly through the second clamping ring and fix on the tooth cover end cover of interior tooth cover, the second clamping ring be fixed in on the tooth cover end cover through second clamping ring bolt fastening, the second sealing washer locate at least between the corresponding end turn-ups of tooth cover end cover and bellows, when sealing up lubricated chamber, seal up the screw-thread fit clearance of second clamping ring bolt.
Furthermore, the flanging of the corrugated pipe connected with the gear sleeve end cover is an inner flanging, the second pressing ring presses the flanging on the gear sleeve end cover from the inner side of the inner flanging, the second pressing ring bolt is located on the inner side of the second sealing ring, and the thread fit clearance of the second pressing ring bolt is sealed while the clearance between the flanging and the gear sleeve end cover is sealed by the second sealing ring.
Furthermore, the turn-ups that bellows and tooth cover end cover be connected be the flanging, the second clamping ring press the turn-ups on tooth cover end cover by the flanging's the outside, the second clamping ring on with second clamping ring bolt matched with bolt hole be the blind hole, the second sealing washer include outer lane sealing washer and inner circle sealing washer, the outer lane sealing washer locate between second clamping ring and the tooth cover end cover, and outer lane sealing washer is located the outside of second clamping ring bolt, the inner circle sealing washer locate between tooth cover end cover and the turn-ups, when outer lane sealing washer and the sealed turn-ups of inner circle sealing washer and tooth cover end cover clearance, seal up the screw-thread fit clearance of second clamping ring bolt.
The utility model discloses a tooth-like shaft coupling, including interior tooth cover and the inside outer tooth axle of interior tooth cover of locating, outer tooth axle mesh with the inner tooth cover mutually, interior tooth cover and outer tooth axle between form the confined lubricated chamber by foretell bellows seal structure.
Furthermore, the inner gear sleeve and the gear sleeve end cover are integrally formed or are assembled and connected in a split mode; when the split assembly is connected, an end cover sealing ring is arranged between the inner gear sleeve and the gear sleeve end cover, and the inner gear sleeve and the gear sleeve end cover are fixedly connected through an end cover bolt.
3. Advantageous effects
Adopt the technical scheme provided by the utility model, compare with existing well-known technique, have following beneficial effect:
(1) the utility model discloses a bellows seal structure and use its tooth-like shaft coupling, it installs between interior tooth cover and outer tooth axle, including bellows, first clamping ring, first sealing washer, second clamping ring and second sealing washer, one end of bellows compresses tightly through the second clamping ring and fixes on the tooth cover end cover of interior tooth cover, the second clamping ring is fixed on the tooth cover end cover through second clamping ring bolt, the second sealing washer locates at least between tooth cover end cover and the corresponding end turn-ups of bellows, when sealing the lubrication cavity, seal the screw fit clearance of second clamping ring bolt, through rationally setting up clamping ring bolt and sealing washer, make the sealing washer seal the turn-ups and tooth cover end cover clearance, also seal the screw hole clearance of clamping ring bolt, effectively prevented the lubricating medium from leaking from the screw hole clearance of clamping ring bolt, improved the sealed tightness of tooth-like shaft coupling's bellows, the working stability and the service life of the tooth type coupling are further improved;
(2) the utility model discloses a bellows seal structure, the turn-ups that its bellows and tooth cover end cover are connected is the inside turn-ups, and the second clamping ring is pressed the turn-ups on tooth cover end cover by the inboard of inside turn-ups, and the second clamping ring bolt is located the inboard of second sealing washer, when the sealed turn-ups of second sealing washer and tooth cover end cover clearance, seals the screw-thread fit clearance of second clamping ring bolt; the inner flanging design is adopted, the sealing of the lubricating cavity can be realized only by arranging the second pressure ring bolt at the inner side of the second sealing ring, the structural design is simpler, and the assembly is convenient;
(3) the utility model discloses a bellows seal structure, the turn-ups that its bellows and tooth cover end cover are connected is the flanging, the second clamping ring is pressed the turn-ups on tooth cover end cover by the outside of flanging, the bolt hole that matches with second clamping ring bolt on the second clamping ring is the blind hole, the second sealing washer includes outer lane sealing washer and inner circle sealing washer, outer lane sealing washer locates between second clamping ring and the tooth cover end cover, and outer lane sealing washer is located the outside of second clamping ring bolt, the inner circle sealing washer locates between tooth cover end cover and the turn-ups, when outer lane sealing washer and the sealed turn-ups of inner circle sealing washer and tooth cover end cover clearance, seal the screw-thread fit clearance of second clamping ring bolt; the flanging design is adopted, the flanging forming is more convenient, and meanwhile, the sealing effect is better because the inner sealing ring and the outer sealing ring are used for sealing;
(4) the utility model discloses a tooth-like shaft coupling, form the confined lubrication cavity by the above-mentioned bellows seal structure between its interior tooth cover and the external gear shaft, because the leakproofness of bellows seal structure is better, prevented effectively that the interior lubrication medium of tooth-like shaft coupling from leaking, improved tooth-like shaft coupling's job stabilization nature and life greatly;
(5) the utility model discloses a tooth type shaft coupling, but its interior tooth cover and tooth cover end cover integrated into one piece or components of a whole that can function independently be assembled between/be connected between, can select according to different design needs, further made things convenient for tooth type shaft coupling's manufacturing and assembly.
Drawings
Fig. 1 is a schematic view of an installation structure of a bellows seal structure in a tooth coupling according to embodiment 1 of the present invention;
FIG. 2 is a schematic view of a portion A of FIG. 1;
fig. 3 is a schematic view of an installation structure of a bellows seal structure in a tooth coupling according to embodiment 2 of the present invention;
FIG. 4 is a schematic view of a portion of the enlarged structure at B in FIG. 1;
fig. 5 is a schematic view of an installation structure of a bellows seal structure in a tooth coupling according to embodiment 3 of the present invention;
fig. 6 is a partially enlarged schematic view of a portion C in fig. 1.
The reference numerals in the schematic drawings illustrate:
1. an inner gear sleeve; 2. an outer gear shaft; 3. a gear sleeve end cover; 4. a bellows; 4-1, flanging; 5. a first pressure ring; 6. a first seal ring; 7. a first compression ring bolt; 8. a second pressure ring; 9. a second compression ring bolt; 10. a second seal ring; 10a, an outer ring sealing ring; 10b, an inner ring sealing ring; 11. an end cap bolt; 12. and (4) sealing rings of end covers.
Detailed Description
For a further understanding of the present invention, reference will be made to the following detailed description taken in conjunction with the accompanying drawings and examples.
[ example 1]
Referring to fig. 1 and 2, the bellows seal structure of this embodiment is installed between an inner gear sleeve 1 and an outer gear shaft 2, and includes a bellows 4, a first press ring 5, a first seal ring 6, a second press ring 8, and a second seal ring 10, where two ends of the bellows 4 have flange structures, one end of the bellows 4 is fixed to the outer gear shaft 2 by pressing the first press ring 5, the first press ring 5 is fixed to the outer gear shaft 2 by a first press ring bolt 7, and the first seal ring 6 is disposed between the outer gear shaft 2 and a corresponding end of the bellows 4; the other end of the corrugated pipe 4 is pressed and fixed on the gear sleeve end cover 3 of the inner gear sleeve 1 through a second pressing ring 8, the second pressing ring 8 is fixed on the gear sleeve end cover 3 through a second pressing ring bolt 9, a second sealing ring 10 is at least arranged between the gear sleeve end cover 3 and a corresponding end flanging 4-1 of the corrugated pipe 4, and a thread fit gap of the second pressing ring bolt 9 is sealed while a lubricating cavity is sealed. The corrugated pipe 4 seals the space between the inner gear sleeve 1 and the outer gear shaft 2 to form a lubricating cavity, and the first pressure ring bolt 7 is positioned in the lubricating cavity, so that a lubricating medium cannot leak out from a threaded hole gap of the first pressure ring bolt 7, and the sealing between the corrugated pipe 4 and the outer gear shaft 2 is ensured only by utilizing the first sealing ring 6; the existing corrugated pipe sealing structure is sealed by adopting the same structure at two ends of the corrugated pipe 4, lubricating media in a lubricating cavity easily seep out through a threaded hole gap of the second pressure ring bolt 9, the pressure ring bolt and the sealing ring are reasonably arranged in the embodiment, the sealing flange of the sealing ring and the gap of the gear sleeve end cover are enabled to be sealed, the thread fit gap of the pressure ring bolt is also sealed, the lubricating media are effectively prevented from leaking from the thread fit gap of the pressure ring bolt, the sealing tightness of the corrugated pipe sealing structure of the gear coupling is improved, and further the working stability and the service life of the gear coupling are improved.
As shown in fig. 1 and 2, in this embodiment, a flange 4-1 of the bellows 4 connected to the gear sleeve end cover 3 is an inward flange, that is, a vertical flange structure is formed by bending the end of the bellows 4 inward, the second press ring 8 presses the flange 4-1 against the gear sleeve end cover 3 from the inner side of the inward flange, the second press ring 8 is fixed in the circumferential direction by a plurality of second press ring bolts 9, and the second press ring bolts 9 are located on the inner side of the second seal ring 10, so that the second seal ring 10 seals the gap between the flange 4-1 and the gear sleeve end cover 3, and at the same time, the thread fit gap of the second press ring bolts 9 is also sealed, so that the lubricating medium in the lubricating cavity cannot penetrate into the thread fit gap of the second press ring bolts 9. By adopting the inward flanging design, the sealing of the lubricating cavity can be realized only by arranging the second pressing ring bolt 9 on the inner side of the second sealing ring 10, the structural design is simpler, and the assembly is convenient.
As shown in fig. 1, the present embodiment further discloses a gear coupling, which includes an inner gear sleeve 1 and an outer gear shaft 2 disposed inside the inner gear sleeve 1, wherein the outer gear shaft 2 is engaged with the inner gear sleeve 1, and a closed lubrication cavity is formed between the inner gear sleeve 1 and the outer gear shaft 2 by the above-mentioned bellows seal structure. Because the sealing performance of the corrugated pipe sealing structure is better, the leakage of a lubricating medium in the tooth type coupling is effectively prevented, the working stability of the tooth type coupling is greatly improved, and the service life of the tooth type coupling is greatly prolonged. The inner gear sleeve 1 and the gear sleeve end cover 3 can be integrally formed or can be assembled and connected in a split mode. In the embodiment, the internal gear sleeve 1 and the gear sleeve end cover 3 are preferably connected in a split manner, and when the internal gear sleeve 1 and the gear sleeve end cover 3 are connected in a split assembly manner, an end cover sealing ring 12 is arranged between the internal gear sleeve 1 and the gear sleeve end cover 3, and the internal gear sleeve 1 and the gear sleeve end cover 3 are fixedly connected through an end cover bolt 11. And the split structure design is adopted, so that the assembly and the manufacture of the tooth type coupling are more convenient.
[ example 2]
Referring to fig. 3 and 4, the basic structure and the operation principle of the bellows seal structure and the tooth coupling using the same according to the present embodiment are the same as those of embodiment 1, except that:
in this embodiment, interior tooth cover 1 and tooth cover end cover 3 integrated into one piece, 1 wholeness of integrated into one piece's interior tooth cover is better with the leakproofness, the problem of the gap seepage between interior tooth cover 1 and the tooth cover end cover 3 can not appear.
[ example 3]
Referring to fig. 5 and 6, the basic structure and the operation principle of the bellows seal structure and the tooth coupling using the same according to the present embodiment are the same as those of embodiment 2, except that:
in the embodiment, the flange 4-1 of the corrugated pipe 4 connected with the gear sleeve end cover 3 is an outward flange, namely, the end part of the corrugated pipe 4 is bent outwards to form a vertical flanging structure, the flanging 4-1 is pressed on the gear sleeve end cover 3 by the second pressing ring 8 from the outer side of the flanging, a bolt hole matched with a second pressing ring bolt 9 on the second pressing ring 8 is a blind hole, the second sealing ring 10 comprises an outer ring sealing ring 10a and an inner ring sealing ring 10b, the outer ring sealing ring 10a is arranged between the second pressing ring 8 and the gear sleeve end cover 3, and the outer ring sealing ring 10a is positioned at the outer side of the second pressure ring bolt 9, the inner ring sealing ring 10b is arranged between the gear sleeve end cover 3 and the flanging 4-1, and sealing the thread fit clearance of the second compression ring bolt 9 while sealing the clearance between the flange 4-1 and the gear sleeve end cover 3 by the outer ring sealing ring 10a and the inner ring sealing ring 10 b. By adopting the design of the outward flanging, the flanging is more convenient to form, and meanwhile, the inward and outward sealing rings are utilized for sealing, so that the sealing effect is better.
Other structures and working principles of the tooth coupling are similar to those of the prior art, and are not described in detail herein.
The utility model discloses a bellows seal structure and use its tooth-type shaft coupling through carrying out reasonable setting to clamping ring bolt and sealing washer, when making the sealed turn-ups of sealing washer and tooth cover end cover clearance, also seal the screw-thread fit clearance of second clamping ring bolt, effectively prevented the lubricating medium from the screw-thread fit clearance seepage of clamping ring bolt, improved the bellows seal structure's of tooth-type shaft coupling sealed tightness, and then improved the job stabilization nature and the life of tooth-type shaft coupling.
The present invention and its embodiments have been described above schematically, and the description is not intended to be limiting, and what is shown in the drawings is only one of the embodiments of the present invention, and the actual structure is not limited thereto. Therefore, if the person skilled in the art receives the teaching of the present invention, without creatively designing the similar structural modes and embodiments to the technical solutions, they should belong to the protection scope of the present invention.
Claims (5)
1. The utility model provides a bellows seal structure, installs between interior tooth cover (1) and external tooth axle (2), includes bellows (4), first clamping ring (5), first sealing washer (6), second clamping ring (8) and second sealing washer (10), the one end of bellows (4) compress tightly through first clamping ring (5) and fix on external tooth axle (2), first clamping ring (5) be fixed in on external tooth axle (2) through first clamping ring bolt (7), first sealing washer (6) locate between the tip that corresponds of external tooth axle (2) and bellows (4), its characterized in that: the other end of bellows (4) compress tightly through second clamping ring (8) and fix on tooth cover end cover (3) of interior tooth cover (1), second clamping ring (8) be fixed in tooth cover end cover (3) through second clamping ring bolt (9) on, second sealing washer (10) locate at least between tooth cover end cover (3) and the corresponding end turn-ups (4-1) of bellows (4), when sealing up lubricating cavity, seal up the screw-thread fit clearance of second clamping ring bolt (9).
2. A bellows seal structure according to claim 1, wherein: bellows (4) turn-ups (4-1) of being connected with tooth cover end cover (3) be the inside flanging, second clamping ring (8) by the inboard of inside flanging turn-ups (4-1) pressure on tooth cover end cover (3), second clamping ring bolt (9) be located the inboard of second sealing washer (10), when second sealing washer (10) seal turn-ups (4-1) and tooth cover end cover (3) clearance, seal the screw-thread fit clearance of second clamping ring bolt (9).
3. A bellows seal structure according to claim 1, wherein: the corrugated pipe (4) and the gear sleeve end cover (3) are connected through a flanging (4-1), the second pressing ring (8) presses the flanging (4-1) on the gear sleeve end cover (3) from the outer side of the flanging, a bolt hole which is matched with a second pressing ring bolt (9) in the second pressing ring (8) is a blind hole, the second sealing ring (10) comprises an outer ring sealing ring (10a) and an inner ring sealing ring (10b), the outer ring sealing ring (10a) is arranged between the second pressing ring (8) and the gear sleeve end cover (3), the outer ring sealing ring (10a) is positioned on the outer side of the second pressing ring bolt (9), the inner ring sealing ring (10b) is arranged between the gear sleeve end cover (3) and the flanging (4-1), and the outer ring sealing ring (10a) and the inner ring sealing ring (10b) are used for sealing a gap between the flanging (4-1) and the gear sleeve end cover (3), and sealing the thread fit clearance of the second compression ring bolt (9).
4. The utility model provides a tooth-like shaft coupling, includes interior tooth cover (1) and locates inside outer tooth axle (2) of interior tooth cover (1), outer tooth axle (2) mesh mutually with interior tooth cover (1), its characterized in that: a closed lubrication cavity is formed between the inner gear sleeve (1) and the outer gear shaft (2) by the bellows sealing structure of claim 1 or 2 or 3.
5. A tooth coupling according to claim 4, characterized in that: the inner gear sleeve (1) and the gear sleeve end cover (3) are integrally formed or in split assembly connection; when the split assembly is connected, an end cover sealing ring (12) is arranged between the inner gear sleeve (1) and the gear sleeve end cover (3), and the inner gear sleeve (1) and the gear sleeve end cover (3) are fixedly connected through an end cover bolt (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121576058.2U CN215171659U (en) | 2021-07-12 | 2021-07-12 | Corrugated pipe sealing structure and tooth type coupling using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121576058.2U CN215171659U (en) | 2021-07-12 | 2021-07-12 | Corrugated pipe sealing structure and tooth type coupling using same |
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| Publication Number | Publication Date |
|---|---|
| CN215171659U true CN215171659U (en) | 2021-12-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121576058.2U Active CN215171659U (en) | 2021-07-12 | 2021-07-12 | Corrugated pipe sealing structure and tooth type coupling using same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114962473A (en) * | 2022-06-09 | 2022-08-30 | 太原科技大学 | High-elasticity crowned tooth coupling with large inclination angle |
-
2021
- 2021-07-12 CN CN202121576058.2U patent/CN215171659U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114962473A (en) * | 2022-06-09 | 2022-08-30 | 太原科技大学 | High-elasticity crowned tooth coupling with large inclination angle |
| CN114962473B (en) * | 2022-06-09 | 2023-10-20 | 太原科技大学 | High elasticity crowned tooth shaft coupling of big inclination |
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