CN203670773U - Shaft end sealing device for reduction box of spiral conveyer - Google Patents
Shaft end sealing device for reduction box of spiral conveyer Download PDFInfo
- Publication number
- CN203670773U CN203670773U CN201320758145.9U CN201320758145U CN203670773U CN 203670773 U CN203670773 U CN 203670773U CN 201320758145 U CN201320758145 U CN 201320758145U CN 203670773 U CN203670773 U CN 203670773U
- Authority
- CN
- China
- Prior art keywords
- ring
- felt
- output shaft
- felt circle
- sealing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000007789 sealing Methods 0.000 title claims abstract description 27
- 239000003638 chemical reducing agent Substances 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 239000000463 material Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
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- Sealing Devices (AREA)
Abstract
The utility model discloses a shaft end sealing device for a reduction box of a spiral conveyer, and belongs to the technical field of reduction boxes of spiral conveyers. The shaft end sealing device for the reduction box of the spiral conveyer comprises a sealing box (1), an end cover (4), a felt ring (2), a check ring (3) and an output shaft (6), wherein the end cover (4) is fixed to the sealing box (1) through a connection piece (7); the felt ring (2) is embedded into the sealing box (1); the check ring (3) is arranged between the end cover (4) and the felt ring (2) and is tightly attached to the felt ring (2); the output shaft (6) penetrates through the sealing box (1), the felt ring (2), the check ring (3) and the end cover (4) in sequence; an inner hole of the felt ring (2) is tightly attached to the output shaft (6); a compressed spring (5) is arranged between the check ring (3) and the end cover (4). The compressed spring is arranged inside the shaft end sealing device, so that the compressed spring exerts certain compressing force on the felt ring, the felt ring can be compensated in time after being abraded, the problems that the shaft end of the reduction box leaks easily and a sealing part is replaced frequently are avoided, production cost is lowered, and production efficiency and economic benefits are improved effectively.
Description
Technical field
The utility model relates to a kind of shaft end seal device, and specifically a kind of screw conveyor speed reducer shaft end seal device, belongs to screw conveyor speed reducer technical field.
Background technique
Existing screw conveyor speed reducer output terminal sealing means is hair felt ring seal, and existing speed reducer output shaft sealed end is mainly made up of with back-up ring sealing case, felt circle, back-up ring, hole; Back-up ring and felt circle and hole fit with back-up ring, and when assembling, felt circle has certain decrement, and felt circle and output shaft are fitted tightly, and the phase can be played good sealing effect before use.But when after felt circle and output shaft long time running, can cause the wearing and tearing of felt circle, make the excesssive gap between felt circle and output shaft and produce the seepage of powder.Above-mentioned speed reducer sealed end very easily damages, and just needs at set intervals to change, and not only impact is normal produces, and increases cost of production, and wastes time and energy, and is unfavorable for the raising of manufacturing efficiency and economic benefit.
Summary of the invention
The problem existing for above-mentioned prior art, the utility model provides a kind of screw conveyor speed reducer shaft end seal device, after sealing material wearing and tearing, can be compensated immediately, felt circle and output shaft are fitted tightly all the time, avoid occurring the phenomenon of fine material leakage, extend the working life of seal arrangement, avoid the frequent trouble of changing of seal arrangement simultaneously, reduce production costs, enhance productivity and economic benefit.
For solving the problems of the technologies described above, a kind of screw conveyor speed reducer of the utility model shaft end seal device, comprises sealing case, felt circle, back-up ring, end cap, Compress Spring and output shaft;
Described felt circle is embedded in sealing case,
Described back-up ring is located between end cap and felt circle and is close to felt circle,
Described end cap is fixed together by link and sealing case,
Described output shaft passes sealing case, felt circle, back-up ring and end cap successively,
The endoporus of described output shaft and felt circle fits tightly;
Between described back-up ring and end cap, be provided with Compress Spring.
As preferably, link is screw or rivet.
Further, back-up ring is close in Compress Spring one end, and the other end is close to end cap.
Compared with prior art, in the utility model seal arrangement, put into a Compress Spring, make it produce certain compressive force to felt circle, thereby make can be compensated in time after the wearing and tearing of felt circle, make felt circle and the output shaft state in fitting tightly all the time, thereby avoided speed reducer axle head easy to leak, need the frequent problem of changing Sealing, reduce cost of production, effectively improved manufacturing efficiency and economic benefit.
Brief description of the drawings
Fig. 1 is the utility model structural representation.
In figure: 1, sealing case, 2, felt circle, 3, baffle plate, 4, end cap, 5, Compress Spring, 6, output shaft, 7, link.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, a kind of screw conveyor speed reducer of the utility model shaft end seal device, mainly by sealing case 1, be fixed on the end cap 4 on sealing case 1 by link 7, be embedded in the felt circle 2 in sealing case 1, be located between end cap 4 and felt circle 2 and be close to the back-up ring 3 of felt circle 2, successively through the output shaft 6 of sealing case 1, felt circle 2, back-up ring 3 and end cap 4, and the Compress Spring 5 of being located between back-up ring 3 and end cap 4 forms; The endoporus of described felt circle 2 and output shaft 6 fit tightly.
Described link 7 is screw, also can select rivet, but rivet is cumbersome in the time of dismounting, and therefore, preferably screw is as link 7 of the present utility model.
Back-up ring 3 is close in described Compress Spring 5 one end, and the other end is close to end cap 4, makes Compress Spring 5 all the time in compressive state, thereby the felt circle 2 of wearing and tearing can be compensated, and prevents fine material leakage.
When assembling, make Compress Spring 5 in sealing case 1 in compressive state, Compress Spring 5 makes felt circle 2 have certain decrement by back-up ring 3, thereby felt circle 2 and output shaft 6 are fitted tightly.In the time that felt circle 2 weares and teares, due to the existence of Compress Spring 5 compressive forcees, the felt circle 2 of wearing and tearing can be compensated immediately, thereby makes felt circle 2 and output shaft 6 all the time in fitting tightly state, has extended the working life of speed reducer sealed end.
Claims (3)
1. a screw conveyor speed reducer shaft end seal device, comprises sealing case (1), felt circle (2), back-up ring (3), end cap (4), Compress Spring (5) and output shaft (6);
Described felt circle (2) is embedded in sealing case (1),
Described back-up ring (3) is located between end cap (4) and felt circle (2) and is close to felt circle (2),
Described end cap (4) is fixed together by link (7) and sealing case (1),
Described output shaft (6) passes sealing case (1), felt circle (2), back-up ring (3) and end cap (4) successively,
Described output shaft (6) fits tightly with the endoporus of felt circle (2);
It is characterized in that, between described back-up ring (3) and end cap (4), be provided with Compress Spring (5).
2. a kind of screw conveyor speed reducer shaft end seal device according to claim 1, is characterized in that, described link (7) is screw or rivet.
3. a kind of screw conveyor speed reducer shaft end seal device according to claim 1, is characterized in that, back-up ring (3) is close in described Compress Spring (5) one end, and the other end is close to end cap (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320758145.9U CN203670773U (en) | 2013-11-27 | 2013-11-27 | Shaft end sealing device for reduction box of spiral conveyer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320758145.9U CN203670773U (en) | 2013-11-27 | 2013-11-27 | Shaft end sealing device for reduction box of spiral conveyer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203670773U true CN203670773U (en) | 2014-06-25 |
Family
ID=50967071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320758145.9U Expired - Fee Related CN203670773U (en) | 2013-11-27 | 2013-11-27 | Shaft end sealing device for reduction box of spiral conveyer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203670773U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111804458A (en) * | 2016-02-05 | 2020-10-23 | 固瑞克明尼苏达有限公司 | Fluid pump leak transfer |
-
2013
- 2013-11-27 CN CN201320758145.9U patent/CN203670773U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111804458A (en) * | 2016-02-05 | 2020-10-23 | 固瑞克明尼苏达有限公司 | Fluid pump leak transfer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 |