CN202156726U - Central conveying chain with labyrinth seal - Google Patents
Central conveying chain with labyrinth seal Download PDFInfo
- Publication number
- CN202156726U CN202156726U CN2011202443805U CN201120244380U CN202156726U CN 202156726 U CN202156726 U CN 202156726U CN 2011202443805 U CN2011202443805 U CN 2011202443805U CN 201120244380 U CN201120244380 U CN 201120244380U CN 202156726 U CN202156726 U CN 202156726U
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- CN
- China
- Prior art keywords
- labyrinth
- end cover
- bearing pin
- conveying chain
- shape
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a central conveying chain with labyrinth seal, which comprises an end sleeve, a pin shaft, an outer chain plate, an inner chain plate and a connecting rack; the outer chain plate and the connecting rack are connected to the end cover; the pin shaft includes an inner end with diameter smaller than inner diameter of the end cover, and an outer end with diameter greater than inner diameter of the end cover; the inner chain plate is connected to the outer end of the pin shaft; the inner end of the pin shaft is inserted in the end cover, and the outer end surface is close to the end surface of the end sleeve; and the inner side of the end surface of the end cover is provided with an annular groove, and a labyrinth seal ring is disposed in the annular groove. The central conveying chain realizes good sealing effect by the labyrinth seal ring, and can effectively prevent the materials with high corrosiveness such as coal ash, slag and the like from entering in the space between the pin shaft and the end sleeve, so that the conveying chain is greatly improved in wear resistance and service life, simplified in structure and convenient to mount and maintain. The central conveying chain makes a bold improvement on the structure of the great conventional conveying chain product; and the improved mechanical structure is not very complex, but the improved sealing effect is remarkably improved, thereby greatly prolonging service life of the conveying chain.
Description
[technical field]
The utility model relates to the building materials technical field of conveying machinery, relates in particular to the central conveyer chain of band labyrinth packing.
[background technology]
At present, domestic cement industry forward is large-scale, the development of energy-saving and environmental protection, benefit aspect, because the large-scale production line construction needs traffic capacity big, reliable load transfer device adapts to supporting with it.The supporting load transfer device specification of present status in China is increasing, and corresponding and load transfer device gig require also increasingly high for conveyer chain.
Central conveyer chain structure commonly used mainly contains following several kinds:
1. direct selling, pin link plate steel plate location+hopper location;
2. direct selling, pin link plate snaps into position+hopper location;
3. step pin, pin link plate+hopper are located;
4. direct selling, pin link plate location.
The merits and faults of these four kinds of central conveyer chain structures is respectively:
1. direct selling, pin link plate steel plate location+hopper location
Advantage: relatively simple for structure, easy to make, easy to maintenance.
Shortcoming: if carry the severe material (like fly ash, slag etc.) of abrasion to get into bearing pin and shaft room easily, wearing and tearing are than very fast.
2. direct selling, pin link plate snaps into position+hopper location
Advantage: relatively simple for structure, easy to make, easy to maintenance.
Shortcoming: if carry the severe material (like fly ash, slag etc.) of abrasion to get into bearing pin and shaft room easily, wearing and tearing are than very fast.
3. step pin, pin link plate+hopper are located
Advantage: relatively simple for structure, easy to make, easy to maintenance.
Shortcoming: if carry the severe material (like fly ash, slag etc.) of abrasion to get into bearing pin and end inner room easily, wearing and tearing are than very fast.
4. direct selling, pin link plate location
Advantage: if carry the severe material (like fly ash, slag etc.) of abrasion to be not easy to get into bearing pin and end inner room, it is smaller to wear and tear.
Shortcoming: the structure more complicated, install and safeguard inconvenience.
[utility model content]
The purpose of the utility model solves the problems of the prior art exactly, proposes a kind of central conveyer chain with labyrinth packing, not only can improve wear resisting property, and can simplified structure, conveniently installation and maintenance.
For realizing above-mentioned purpose; The utility model provides a kind of central conveyer chain with labyrinth packing, comprise end cover, bearing pin, pin link plate, inner plate and link span, pin link plate and link span are connected end and put; Bearing pin comprises that diameter overlaps the inner of internal diameter and diameter overlaps internal diameter greater than end outer end less than end; Inner plate is connected on the outer end of bearing pin, and in the inner insertion end cover of bearing pin, the end face of outer end is fitted with the end face of end cover; The end face inboard of said end cover has annular groove, is provided with labyrinth collar in the annular groove.
As preferably; Labyrinth and outer labyrinth in said labyrinth collar comprises, said interior labyrinth is fitted on the bearing pin, and outer labyrinth is fitted in the annular groove of end cover; The cross-sectional plane of interior labyrinth and outer labyrinth is " L " shape; Two " L " shape cooperatively interacts and constitutes the closed cavity of cross-sectional plane for " mouth " shape, and this labyrinth seal ring is simple in structure, good sealing effect.
As preferably, said cross-sectional plane is filled with butter in the closed cavity of " mouth " shape, has further improved sealing effectiveness.
As preferably, have annular positioning groove on the madial wall of said end cover, have the jump ring groove with the annular positioning groove corresponding position on the inner of bearing pin, be provided with jump ring in the jump ring groove, adopt the mode of dark Spring Card to fix, processing and easy for installation, good fixing effect.
As preferably, the cross-sectional plane semicircular in shape of said annular positioning groove, semi-round front end is the oblique line shape guiding groove; The cross-sectional plane inboard of jump ring groove is semicircle, and the outside is a rectangle, further facilitate to install and maintenance, and processing is also more convenient.
The beneficial effect of the utility model: the utility model adopts labyrinth collar; Played good sealing effectiveness; Can prevent effectively that the severe material of abrasions such as fly ash, slag from getting between bearing pin and the end cover; Thereby improved the wear resisting property and the service life of conveyer chain greatly, and simplified the structure, made things convenient for and installed and maintenance.The utility model has been made bold improvement to the structure of extremely traditional conveyer chain product; Though improved physical construction is not very complicated, the significant sealing affection after improving improves, thereby has prolonged the service life of conveyer chain greatly; Solved the insurmountable always for many years technical barrier of conveyer chain industry; More the improvement through minor structure has obtained unexpected effectiveness, and the development of conveyer chain industry is had very positive meaning, also has very high commercial value simultaneously.
Characteristic of the utility model and advantage will combine accompanying drawing to be elaborated through embodiment.
[description of drawings]
Fig. 1 is the structural representation of the central conveyer chain of the utility model band labyrinth packing;
Fig. 2 is the decomposing schematic representation of the central conveyer chain of the utility model band labyrinth packing.
[specific embodiment]
Like Fig. 1, shown in 2; The central conveyer chain of band labyrinth packing comprises end cover 3, bearing pin 8, pin link plate 5, inner plate 7 and link span 4, and pin link plate 5 is connected on the end cover 3 with link span 4; Bearing pin 8 comprises that diameter overlaps the inner of 3 internal diameters and diameter overlaps 3 internal diameters greater than end outer end less than end; Inner plate 7 is connected on the outer end of bearing pin 8, and in the inner insertion end cover 3 of bearing pin 8, the end face of outer end is fitted with the end face of end cover 3; The end face inboard of said end cover 3 has annular groove 11, is provided with labyrinth collar in the annular groove 11.
Have annular positioning groove 12 on the madial wall of said end cover 3; Have jump ring groove 1 with annular positioning groove 12 corresponding positions on the inner of bearing pin 8; Be provided with jump ring 2 in the jump ring groove 1, the cross-sectional plane semicircular in shape of annular positioning groove 12, semi-round front end is the oblique line shape guiding groove; The cross-sectional plane inboard of jump ring groove 1 is semicircle, and the outside is a rectangle.
Bearing pin 8 can adopt the 50CrMoA superior alloy steel, after metalworking, modified, mid frequency induction hardening, intensive treatment, have good fatigue resistance simultaneously driving surface higher hardness is arranged, can further prolong its service life like this.
Through on probation, the utility model has the applications effect of more dust more remarkable in course of conveying such as cement industry, customer acceptance Du Genggao.
The foregoing description is the explanation to the utility model, is not the qualification to the utility model, any protection domain that scheme after the utility model simple transformation is all belonged to the utility model.
Claims (5)
1. the central conveyer chain of band labyrinth packing comprises end cover, bearing pin, pin link plate, inner plate and link span, and pin link plate and link span are connected end and put; Bearing pin comprises that diameter overlaps the inner of internal diameter and diameter overlaps internal diameter greater than end outer end less than end; Inner plate is connected on the outer end of bearing pin, and in the inner insertion end cover of bearing pin, the end face of outer end is fitted with the end face of end cover; It is characterized in that: the end face inboard of said end cover has annular groove, is provided with labyrinth collar in the annular groove.
2. the central conveyer chain of band labyrinth packing as claimed in claim 1; It is characterized in that: labyrinth and outer labyrinth in said labyrinth collar comprises; Labyrinth is fitted on the bearing pin in said; Outer labyrinth is fitted in the annular groove of end cover, and the cross-sectional plane of interior labyrinth and outer labyrinth is " L " shape, and two " L " shape cooperatively interacts and constitutes the closed cavity of cross-sectional plane for " mouth " shape.
3. the central conveyer chain of band labyrinth packing as claimed in claim 2 is characterized in that: said cross-sectional plane is filled with butter in the closed cavity of " mouth " shape.
4. like the central conveyer chain of each described band labyrinth packing in the claim 1 to 3; It is characterized in that: have annular positioning groove on the madial wall of said end cover; Have the jump ring groove with the annular positioning groove corresponding position on the inner of bearing pin, be provided with jump ring in the jump ring groove.
5. the central conveyer chain of band labyrinth packing as claimed in claim 4 is characterized in that: the cross-sectional plane semicircular in shape of said annular positioning groove, semi-round front end are the oblique line shape guiding groove; The cross-sectional plane inboard of jump ring groove is semicircle, and the outside is a rectangle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202443805U CN202156726U (en) | 2011-07-12 | 2011-07-12 | Central conveying chain with labyrinth seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202443805U CN202156726U (en) | 2011-07-12 | 2011-07-12 | Central conveying chain with labyrinth seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202156726U true CN202156726U (en) | 2012-03-07 |
Family
ID=45764369
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202443805U Withdrawn - After Issue CN202156726U (en) | 2011-07-12 | 2011-07-12 | Central conveying chain with labyrinth seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202156726U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351092A (en) * | 2011-07-12 | 2012-02-15 | 杭州和泰机电工业有限公司 | Central conveying chain with labyrinth seal |
| CN106697764A (en) * | 2016-12-30 | 2017-05-24 | 杭州和泰机电工业有限公司 | Conveying chain structure of hoister |
-
2011
- 2011-07-12 CN CN2011202443805U patent/CN202156726U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102351092A (en) * | 2011-07-12 | 2012-02-15 | 杭州和泰机电工业有限公司 | Central conveying chain with labyrinth seal |
| CN102351092B (en) * | 2011-07-12 | 2013-12-11 | 杭州和泰机电工业有限公司 | Central conveying chain with labyrinth seal |
| CN106697764A (en) * | 2016-12-30 | 2017-05-24 | 杭州和泰机电工业有限公司 | Conveying chain structure of hoister |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120307 Effective date of abandoning: 20131211 |
|
| RGAV | Abandon patent right to avoid regrant |