CN204253581U - A kind of lubrication and seal connecting rod of bar tacking machine - Google Patents
A kind of lubrication and seal connecting rod of bar tacking machine Download PDFInfo
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- CN204253581U CN204253581U CN201420710724.0U CN201420710724U CN204253581U CN 204253581 U CN204253581 U CN 204253581U CN 201420710724 U CN201420710724 U CN 201420710724U CN 204253581 U CN204253581 U CN 204253581U
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- connecting rod
- bearing
- eccentric cam
- lubrication
- seal
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Abstract
The utility model belongs to sewing machine accessory technical field, refer in particular to a kind of lubrication and seal connecting rod of bar tacking machine, comprise connecting rod, eccentric cam and bearing, one end of described connecting rod is provided with bearing chamber, bearing is positioned at bearing chamber, eccentric cam is flexibly connected with connecting rod by bearing, connecting rod cover plate is connected with the face seal of bearing chamber, the end face of described eccentric cam and the other end of bearing chamber are tightly connected, the utility model adopts the structure of sealed type, effectively can slow down the leakage of lubricating grease, fully ensure that the lubrication of component transmission process, reduce the wearing and tearing of component, thus reduce noise and the vibration of complete machine, realize the lifting of overall mass.
Description
Technical field
The utility model belongs to sewing machine accessory technical field, refers in particular to a kind of lubrication and seal connecting rod of bar tacking machine.
Background technique
At present, the main drive gear of existing bar tacking machine adopts crankrocker mechanism, and its working principle is, driving link eccentric wheel and driven member connecting rod realize relatively rotating by needle bearing, but the lubricating grease of needle bearing only relies on two flinger rings at two ends to realize sealing.When machine operates for a long time, part heating can make lubricating grease liquefy, and throws away from the play of part.
Along with the lifting of bar tacking machine running speed, the situation that the lubricating grease of needle bearing throws away under centrifugal action at a high speed from the play of cover plate and connecting rod is more serious.If machine operates for a long time in this condition, needle bearing and eccentric wheel, connecting rod will be caused to present dry friction state, now frictional force increases, the increased wear of part, and noise and vibration correspondingly increase, and finally affect machine run precision and working life.
Summary of the invention
The purpose of this utility model is to provide a kind of lubrication and seal connecting rod of bar tacking machine, and this lubrication and seal connecting rod effectively can slow down the leakage of lubricating grease, fully ensures the lubrication of component transmission process.
The purpose of this utility model is achieved in that
A kind of lubrication and seal connecting rod of bar tacking machine, comprise connecting rod, eccentric cam and bearing, one end of described connecting rod is provided with bearing chamber, bearing is positioned at bearing chamber, eccentric cam is flexibly connected with connecting rod by bearing, connecting rod cover plate is connected with the face seal of bearing chamber, and the end face of described eccentric cam and the other end of bearing chamber are tightly connected.
The both ends of the surface of above-mentioned bearing chamber are provided with the concavo-convex step of ring, and the end face of connecting rod cover plate and eccentric cam is equipped with the concavo-convex step matched with the concavo-convex step of described ring.
Above-mentioned bearing is angular contact bearing.
Above-mentioned bearing comprises ball inner sleeve and ball, and eccentric cam matches with ball inner sleeve, and ball is located in the annulus between ball inner sleeve inwall and eccentric cam outer wall.
Above-mentioned ball inner sleeve is fixed by the inwall of Cock screw and bearing chamber.
Also be provided with seal ring one and seal ring two between above-mentioned eccentric cam and ball inner sleeve, the both sides of ball are located at respectively relatively by described seal ring one and seal ring two.
Above-mentioned seal ring one, between seal ring two and eccentric cam, be provided with circular groove.
Above-mentioned connecting rod cover plate is connected with eccentric cam by fastening screw trip bolt.
The utility model gives prominence to compared to existing technology and useful technique effect is:
1, the utility model adopts the structure of sealed type, effectively can slow down the leakage of lubricating grease, fully ensure that the lubrication of component transmission process, reduce the wearing and tearing of component, thus reduces noise and the vibration of complete machine, realizes the lifting of overall mass.
2, seal ring one of the present utility model and seal ring two are arranged between eccentric cam and ball inner sleeve, for small―gap suture coordinates, seal ring one and seal ring two are respectively equipped with tiny circular groove, coordinate with eccentric cam, in order to reduce to rotate due to main shaft the flow rate of liquid caused, realize restrictor ring sealing.
Accompanying drawing explanation
Fig. 1 is the exploded view of each assembly of the present utility model.
Fig. 2 is overall structure figure of the present utility model.
Fig. 3 is sectional view of the present utility model.
Fig. 4 is close-up schematic view of the present utility model.
Embodiment
The utility model is further described with specific embodiment below in conjunction with accompanying drawing, see Fig. 1-4:
The lubrication and seal connecting rod of this bar tacking machine comprises connecting rod 1, connecting rod cover plate 2, eccentric cam 3 and bearing, and bearing comprises ball inner sleeve 4 and ball 10; One end of connecting rod 1 is provided with bearing chamber 11, and ball inner sleeve 4 is arranged in bearing chamber 11, and ball inner sleeve 4 and bearing chamber 11 are interference fit, and ball inner sleeve 4 is by the inwall tightening of Cock screw 8 with bearing chamber 11; Eccentric cam 3 matches with ball inner sleeve 4, and ball 10 is located between the annulus of ball inner sleeve 4 inwall and eccentric cam 3 outer wall.Connecting rod cover plate 2 is connected with the face seal of bearing chamber 11, and the end face 31 of eccentric cam 3 is tightly connected with the other end of bearing chamber 11; Connecting rod cover plate 2 is connected with eccentric cam 3 by fastening screw trip bolt 9.
Can also be provided with seal ring 1 and seal ring 26 between eccentric cam 3 and ball inner sleeve 4, the both sides of ball 10 are located at respectively relatively by seal ring 1 and seal ring 26, with eccentric cam 3 and ball inner sleeve 4 for small―gap suture coordinates.Seal ring 1, between seal ring 26 and eccentric cam 3, be provided with circular groove 7, circular groove 7 can be located on the inwall of seal ring 1, seal ring 26, or be located on the inwall of eccentric cam 3, on the inwall also can being located at seal ring 1, seal ring 26 and on the inwall of eccentric cam 3.Seal ring 1, seal ring 26, for reducing because main shaft rotates the flow rate of liquid caused, realize restrictor ring sealing.
Bearing chamber 11 can realize like this with connecting rod cover plate 2 and being tightly connected of eccentric cam 3: the both ends of the surface of bearing chamber 11 arrange the concavo-convex step of ring, the end face 31 of connecting rod cover plate 2 and eccentric cam 3 is provided with the concavo-convex step that step concavo-convex with this ring matches, when three coordinates, realize labyrinth seal.
Certainly, the bearing in above-described embodiment also can be angular contact bearing.
Above-described embodiment is only preferred embodiment of the present utility model, not limits protection domain of the present utility model according to this, therefore: all equivalence changes done according to structure of the present utility model, shape, principle, all should be covered by within protection domain of the present utility model.
Claims (8)
1. the lubrication and seal connecting rod of a bar tacking machine, comprise connecting rod (1), eccentric cam (3) and bearing, one end of described connecting rod (1) is provided with bearing chamber (11), bearing is positioned at bearing chamber (11), eccentric cam (3) is flexibly connected with connecting rod (1) by bearing, it is characterized in that: connecting rod cover plate (2) is connected with the face seal of bearing chamber (11), the end face (31) of described eccentric cam (3) and the other end of bearing chamber (11) are tightly connected.
2. the lubrication and seal connecting rod of a kind of bar tacking machine according to claim 1, it is characterized in that: the both ends of the surface of described bearing chamber (11) are provided with the concavo-convex step of ring, the end face (31) of described connecting rod cover plate (2) and eccentric cam (3) is equipped with the concavo-convex step matched with the concavo-convex step of described ring.
3. the lubrication and seal connecting rod of a kind of bar tacking machine according to claim 1, is characterized in that: described bearing is angular contact bearing.
4. the lubrication and seal connecting rod of a kind of bar tacking machine according to claim 1, it is characterized in that: described bearing comprises ball inner sleeve (4) and some balls (10), described eccentric cam (3) matches with ball inner sleeve (4), and described ball (10) is located in the annulus between ball inner sleeve (4) inwall and eccentric cam (3) outer wall.
5. the lubrication and seal connecting rod of a kind of bar tacking machine according to claim 4, is characterized in that: described ball inner sleeve (4) is fixed by the inwall of Cock screw (8) with bearing chamber (11).
6. the lubrication and seal connecting rod of a kind of bar tacking machine according to claim 4, it is characterized in that: be also provided with seal ring one (5) and seal ring two (6) between described eccentric cam (3) and ball inner sleeve (4), the both sides of ball (10) are located at respectively relatively by described seal ring one (5) and seal ring two (6).
7. the lubrication and seal connecting rod of a kind of bar tacking machine according to claim 6, is characterized in that: described seal ring one (5), be provided with circular groove (7) between seal ring two (6) and eccentric cam (3).
8. lubrication and seal connecting rod according to claim 1, is characterized in that: described connecting rod cover plate (2) is connected with eccentric cam (3) by fastening screw trip bolt (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420710724.0U CN204253581U (en) | 2014-11-24 | 2014-11-24 | A kind of lubrication and seal connecting rod of bar tacking machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420710724.0U CN204253581U (en) | 2014-11-24 | 2014-11-24 | A kind of lubrication and seal connecting rod of bar tacking machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204253581U true CN204253581U (en) | 2015-04-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420710724.0U Active CN204253581U (en) | 2014-11-24 | 2014-11-24 | A kind of lubrication and seal connecting rod of bar tacking machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204253581U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2541212A (en) * | 2015-08-12 | 2017-02-15 | Caterpillar Energy Solutions Gmbh | Cover assembly for connecting rod of an engine |
| CN108266461A (en) * | 2018-03-13 | 2018-07-10 | 红云红河烟草(集团)有限责任公司 | A kind of eccentric disc oil leakage protection device |
-
2014
- 2014-11-24 CN CN201420710724.0U patent/CN204253581U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2541212A (en) * | 2015-08-12 | 2017-02-15 | Caterpillar Energy Solutions Gmbh | Cover assembly for connecting rod of an engine |
| CN108266461A (en) * | 2018-03-13 | 2018-07-10 | 红云红河烟草(集团)有限责任公司 | A kind of eccentric disc oil leakage protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |