CN204310388U - A kind of spiral reductor output seal device - Google Patents
A kind of spiral reductor output seal device Download PDFInfo
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- CN204310388U CN204310388U CN201420770342.7U CN201420770342U CN204310388U CN 204310388 U CN204310388 U CN 204310388U CN 201420770342 U CN201420770342 U CN 201420770342U CN 204310388 U CN204310388 U CN 204310388U
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- seal
- speed reducer
- output shaft
- ring
- reducer output
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Abstract
A kind of spiral reductor output seal device, comprise the split type output end cap be connected with decelerator shell be located at outside speed reducer output shaft, described split type output end cap comprises the inner output seal receptacle be connected with decelerator shell by bolt, is provided with a seal cover cap in the outer end exporting seal receptacle by bolt; The first seal ring is provided with between output seal receptacle the inner and speed reducer output shaft, between seal cover cap and speed reducer output shaft, be provided with the second seal ring, be provided with between seal receptacle the inner at seal cover cap and exporting and be set in several felt circles outside speed reducer output shaft and a back-up ring.Its reasonable in design, adopt split type output end cap, be convenient to effectively arrange the first seal ring, felt circle, back-up ring and the second seal ring, make it better to fit with speed reducer output shaft, reduce surely dynamic gap to greatest extent, seal more reliable and more stable, effectively prevent dust and enter cover internal, substantially prolongs the service life of reductor.
Description
Technical field:
The utility model relates to a kind of spiral reductor output seal device.
Background technology:
Conveyor screw is one of the most frequently used equipment of the convey materials such as concrete mixing plant, chemical industry, building materials.Reductor as the key components and parts of conveyor screw, the length in its life-span and the interests of client closely bound up, improve the gordian technique in service life how to prevent from or delay powder to enter reductor internal time, ensure that reductor normally uses.
The output hermetically-sealed construction of current most of producers conveyor screw adopts shown in Fig. 1, comprise the integral type be connected with decelerator shell 2 be located at outside speed reducer output shaft 1 and export end cap 3, export between end cap 3 and speed reducer output shaft 1 in integral type and be provided with circlip for bore 4 successively from inside to outside, oil sealing 5, felt circle 6 and tetrafluoro packing ring 7, first integral type being exported the assembling of end cap 3 entirety during assembling is completely enclosed within speed reducer output shaft 1 again, easily gap is produced between speed reducer output shaft 1 and output seal, because speed reducer output shaft 1 is in operational process, owing to affecting by the bending quiet jumping brought of pipe in conveyor screw, shaking amplitude is larger, cause speed reducer output shaft 1 and export seal between produce comparatively wide arc gap, powder is easy to export the gap of end cap 3 and speed reducer output shaft 1 from integral type enter cover internal, increase along with entering powder, finally cause reductor cannot normal operation, substantially reduce the service life of reductor.
Utility model content:
The utility model is in order to make up the deficiencies in the prior art, provide a kind of spiral reductor output seal device, its reasonable in design, adopts split type output end cap, is convenient to effectively arrange the first seal ring, felt circle, back-up ring and the second seal ring, make it better to fit with speed reducer output shaft, reduce surely dynamic gap to greatest extent, seal more reliable and more stable, effectively prevent dust and enter cover internal, substantially prolongs the service life of reductor, solve problems of the prior art.
The utility model for solving the problems of the technologies described above adopted technical scheme is:
A kind of spiral reductor output seal device, comprise the split type output end cap be connected with decelerator shell be located at outside speed reducer output shaft, described split type output end cap comprises the inner output seal receptacle be connected with decelerator shell by bolt, is provided with a seal cover cap in the outer end exporting seal receptacle by bolt; The first seal ring is provided with between output seal receptacle the inner and speed reducer output shaft, between seal cover cap and speed reducer output shaft, be provided with the second seal ring, be provided with between seal receptacle the inner at seal cover cap and exporting and be set in several felt circles outside speed reducer output shaft and a back-up ring.
The utility model adopts such scheme, reasonable in design, adopt split type output end cap, be convenient to effectively arrange the first seal ring, felt circle, back-up ring and the second seal ring, make it better to fit with speed reducer output shaft, reduce surely dynamic gap to greatest extent, seal more reliable and more stable, effectively prevent dust and enter cover internal, substantially prolongs the service life of reductor.
Accompanying drawing illustrates:
Fig. 1 is the structural representation of conventional helical reductor output seal device.
Fig. 2 is structural representation of the present utility model.
In figure, 1, speed reducer output shaft, 2, decelerator shell, 3, integral type exports end cap, 4, circlip for bore, 5, oil sealing, 6, felt circle, 7, tetrafluoro packing ring, 8, export seal receptacle, 9, seal cover cap, the 10, first seal ring, the 11, second seal ring, 12, back-up ring.
Detailed description of the invention:
For clearly demonstrating the technical characterstic of this programme, below by detailed description of the invention, and in conjunction with its accompanying drawing, the utility model is elaborated.
As shown in Figure 2, a kind of spiral reductor output seal device, comprise the split type output end cap be connected with decelerator shell 2 be located at outside speed reducer output shaft 1, described split type output end cap comprises the inner output seal receptacle 8 be connected with decelerator shell 2 by bolt, is provided with a seal cover cap 9 in the outer end exporting seal receptacle 8 by bolt; The first seal ring 10 is provided with between output seal receptacle 8 the inner and speed reducer output shaft 1, between seal cover cap 9 and speed reducer output shaft 1, be provided with the second seal ring 11, between seal cover cap 9 and output seal receptacle 8 the inner, be provided with several felt circle 6 and back-up rings 12 of being set in outside speed reducer output shaft 1.
During installation, first the first seal ring 10 is arranged on and exports the inner inner side of seal receptacle 8, then output seal receptacle 8 is fastened by bolts on decelerator shell 2, first seal ring 10 just can be close to speed reducer output shaft 1, again several felt circles 6, back-up ring 12 are contained on speed reducer output shaft 1, finally the second seal ring 11 is embedded in after on seal cover cap 9, is enclosed within speed reducer output shaft 1, be more effectively connected with output seal receptacle 8 by bolt.Change original end cap 3 entirety that integral type exported and assemble the complete mode of operation be enclosed within again on speed reducer output shaft 1, be convenient to effectively arrange the first seal ring 10, several felt circles 6, back-up ring 12 and the second seal ring 11, make it better to fit with speed reducer output shaft 1, reduce surely dynamic gap to greatest extent, seal more reliable and more stable, effectively prevent dust and enter cover internal, substantially prolongs the service life of reductor.
The utility model does not describe part in detail, is the known technology of those skilled in the art of the present technique.
Claims (1)
1. a spiral reductor output seal device, it is characterized in that: comprise the split type output end cap be connected with decelerator shell be located at outside speed reducer output shaft, described split type output end cap comprises the inner output seal receptacle be connected with decelerator shell by bolt, is provided with a seal cover cap in the outer end exporting seal receptacle by bolt; The first seal ring is provided with between output seal receptacle the inner and speed reducer output shaft, between seal cover cap and speed reducer output shaft, be provided with the second seal ring, be provided with between seal receptacle the inner at seal cover cap and exporting and be set in several felt circles outside speed reducer output shaft and a back-up ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420770342.7U CN204310388U (en) | 2014-12-09 | 2014-12-09 | A kind of spiral reductor output seal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420770342.7U CN204310388U (en) | 2014-12-09 | 2014-12-09 | A kind of spiral reductor output seal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204310388U true CN204310388U (en) | 2015-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420770342.7U Active CN204310388U (en) | 2014-12-09 | 2014-12-09 | A kind of spiral reductor output seal device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204310388U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253555A (en) * | 2015-11-06 | 2016-01-20 | 玖龙纸业(重庆)有限公司 | Coating paperboard production pigment charging device |
-
2014
- 2014-12-09 CN CN201420770342.7U patent/CN204310388U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105253555A (en) * | 2015-11-06 | 2016-01-20 | 玖龙纸业(重庆)有限公司 | Coating paperboard production pigment charging device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |