CN204953324U - Swinging screen - Google Patents
Swinging screen Download PDFInfo
- Publication number
- CN204953324U CN204953324U CN201520710329.7U CN201520710329U CN204953324U CN 204953324 U CN204953324 U CN 204953324U CN 201520710329 U CN201520710329 U CN 201520710329U CN 204953324 U CN204953324 U CN 204953324U
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- CN
- China
- Prior art keywords
- roller bearing
- self
- aligning
- aligning roller
- top chock
- 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.)
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- Rolling Contact Bearings (AREA)
Abstract
The utility model relates to a swinging screen, including the screen frame, drive the eccentric main shaft that the screen frame swayd and connect the bolster bearing housing of screen frame and eccentric main shaft, bolster bearing housing comprises the bolster bearing housing seat of honour and lower of bolster bearing housing, and inside is equipped with self -aligning roller bearing, the self -aligning roller bearing top still is equipped with thrust self -aligning roller bearing, thrust self -aligning roller bearing install in on the thrust self -aligning roller bearing position on eccentric main shaft upper portion, just thrust self -aligning roller bearing's outer lane is located in the bolster bearing housing seat of honour and with the contact of the bolster bearing housing seat of honour. Through install thrust self -aligning roller bearing additional on bolster bearing housing, the whole thrust self -aligning roller bearing from this of axial force that bear former cause self -aligning roller bearing bear, have effectively overcome easy damage of present swinging screen middle (center) bearing and the defect of affect using.
Description
[technical field]
The utility model relates to a kind of swinging screen, particularly the swinging screen that improves of a kind of bearing block structure.
[background technology]
Swinging screen, as a kind of screening installation, is widely used in the wood chip screening of paper mill, woodchip factory.Swinging screen of the prior art generally comprises sieve nest, top chock, eccentric main axis, sieve seat, step, leg, belt gear and motor.Sieve seat is equipped with belt gear, drives eccentric main axis to rotate by belt gear, because eccentric main axis has bias, drive sieve nest to swing back and forth, thus screening thing is isolated different size, specification.
Top chock at present on this type of swinging screen comprises seat under the top chock seat of honour, self-aligning roller bearing, pressing plate, upper bearing (metal), and described self-aligning roller bearing is installed with on eccentric main axis, and under described upper bearing (metal), seat is connected with sieve nest.Owing to only filling a self-aligning roller bearing in this structure, described self-aligning roller bearing need bear the moiety by weight of sieve nest, and therefore, self-aligning roller bearing both bore radial load, bore axial force again.Such structure can use for screening machine that is small-sized, sieve nest lighter in weight; But for screening machine that is large-scale, sieve nest heavier-weight, self-aligning roller bearing bears excessive axial force, and bearing is fragile, maintenance trouble, impact is produced.
[summary of the invention]
For the problem existing for above-mentioned swinging screen, it is fragile, durable and can bear the swinging screen of heavier sieve nest that the purpose of this utility model is not to provide a kind of bearing.
For achieving the above object, the technical scheme that adopts of the utility model is as follows:
A kind of swinging screen, comprise sieve nest, drive the sieve nest eccentric main axis waved and the top chock being connected sieve nest and eccentric main axis, described top chock is made up of seat under the top chock seat of honour and top chock, inside is provided with self-aligning roller bearing, also self-aligning thrust roller bearing is provided with above described self-aligning roller bearing, described self-aligning thrust roller bearing is installed on the self-aligning thrust roller bearing position on described eccentric main axis top, and the outer ring of described self-aligning thrust roller bearing is positioned at the described top chock seat of honour and contacts with the top chock seat of honour.
Preferably, above-mentioned eccentric main axis is multidiameter.
Preferably, described self-aligning thrust roller bearing is identical with the aligning radius of described self-aligning roller bearing.
Preferably, packing ring is had between described self-aligning thrust roller bearing and described self-aligning roller bearing.
Preferably, under the described top chock seat of honour and described top chock, seat is bolted fastening.
Beneficial effect:
Compared to the prior art, the beneficial effects of the utility model are:
The utility model by installing self-aligning thrust roller bearing additional on top chock, whole for original axial force of being born by self-aligning roller bearing self-aligning thrust roller bearing is thus born, because the axial load ability of self-aligning thrust roller bearing is very large, some radial loads can also be born while bearing axial load, effectively overcome existing swinging screen middle (center) bearing and easily damage and affect the defect of use.
Self-aligning thrust roller bearing described in the utility model is identical with the aligning radius of described self-aligning roller bearing, thus achieves the synchronous aligning in top chock certain limit.
Accompanying drawing explanation
Fig. 1 is the structural representation of swinging screen;
Fig. 2 is the structural representation of top chock in swinging screen in prior art;
Fig. 3 is the structural representation of top chock in swinging screen described in the utility model.
In figure: 1-sieve nest, 2-top chock, 3-eccentric main axis, 4-sieves seat, 5-step, 6-leg, 7-belt gear, 8-motor, the 21-top chock seat of honour, 22-self-aligning roller bearing, 23-pressing plate, seat under 24-top chock, 25-self-aligning thrust roller bearing, 26-packing ring, 27-bolt.
[detailed description of the invention]
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to be illustrated more clearly in the technical solution of the utility model, below in conjunction with drawings and Examples, is further described the utility model.
As shown in Figure 1, a kind of swinging screen, comprise sieve nest 1, top chock 2, eccentric main axis 3, sieve seat 4, step 5, leg 6, belt gear 7 and motor 8, described top chock 2 is connected with sieve nest 1 and supports sieve nest 1.
Fig. 2 is the structural representation of the top chock 2 in prior art on this type of swinging screen, comprise seat 24 under the top chock seat of honour 21, self-aligning roller bearing 22, pressing plate 23, upper bearing (metal), described self-aligning roller bearing 22 is installed with on eccentric main axis 3, and under described upper bearing (metal), seat 24 is connected with sieve nest 1.In this structure, self-aligning roller bearing 22 need bear the moiety by weight of sieve nest, and therefore, self-aligning roller bearing both bore radial load, bore axial force again.
Fig. 3 is the structural representation of top chock 2 in the swinging screen after the utility model improves, comprise the top chock seat of honour 21, seat 24 under top chock, seat 24 under top chock is inner with being positioned at, be installed on the self-aligning roller bearing 22 on described eccentric main axis 3, improvements of the present utility model are, self-aligning thrust roller bearing 25 has been installed additional in described top chock 2, described eccentric main axis 3 top is provided with the self-aligning thrust roller bearing position 31 coordinating and install described self-aligning thrust roller bearing 25, described eccentric main axis 3 is made to be multidiameter, and the outer ring of described self-aligning thrust roller bearing 25 is positioned at the described top chock seat of honour 21, and contact with the top chock seat of honour 21.Packing ring 26 is had between described self-aligning thrust roller bearing 25 and described self-aligning roller bearing 22.For realizing the synchronous aligning in top chock certain limit, described self-aligning thrust roller bearing 25 is identical with the aligning radius of described self-aligning roller bearing 22, and the present embodiment selects model to be respectively 29412 self-aligning thrust roller bearings and 22318CC/W33 self-aligning roller bearing.
Top chock 2 in the present embodiment when mounted, first self-aligning roller bearing 22 to be put under top chock in seat, and be contained on eccentric main axis 3, then packing ring 26 is loaded onto, again the inner ring of self-aligning thrust roller bearing 25 is contained on eccentric main axis 3, outer ring is loaded in the top chock seat of honour 21, finally connects fastening with seat under top chock 24 by bolt 27 by the top chock seat of honour 21, form a top chock combination, supporting sieve nest 1.There is the top chock of this spline structure, self-aligning roller bearing 22 wherein does not bear sieve nest weight, and born by self-aligning thrust roller bearing 25, because the axial load ability of self-aligning thrust roller bearing is very large, some radial loads can also be born while bearing axial load, effectively overcome existing swinging screen middle (center) bearing and easily damage and affect the defect of use.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model, all within spirit of the present utility model and principle, any amendment done, equivalent replacement or improvement etc., all should be included in of the present utility model comprising within scope.
Claims (5)
1. a swinging screen, the eccentric main axis comprise sieve nest, driving sieve nest to wave, the top chock connecting sieve nest and eccentric main axis, described top chock is made up of seat under the top chock seat of honour and top chock, inside is provided with self-aligning roller bearing, it is characterized in that, self-aligning thrust roller bearing is provided with above described self-aligning roller bearing, described self-aligning thrust roller bearing is installed on the self-aligning thrust roller bearing position on described eccentric main axis top, and the outer ring of described self-aligning thrust roller bearing is positioned at the described top chock seat of honour and contacts with the top chock seat of honour.
2. swinging screen according to claim 1, is characterized in that, described eccentric main axis is multidiameter.
3. swinging screen according to claim 2, is characterized in that, described self-aligning thrust roller bearing is identical with the aligning radius of described self-aligning roller bearing.
4. swinging screen according to claim 3, is characterized in that, has packing ring between described self-aligning thrust roller bearing and described self-aligning roller bearing.
5. the swinging screen according to any one of claim 1-4, is characterized in that, under the described top chock seat of honour and described top chock, seat is bolted fastening.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520710329.7U CN204953324U (en) | 2015-09-14 | 2015-09-14 | Swinging screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520710329.7U CN204953324U (en) | 2015-09-14 | 2015-09-14 | Swinging screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204953324U true CN204953324U (en) | 2016-01-13 |
Family
ID=55048421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520710329.7U Active CN204953324U (en) | 2015-09-14 | 2015-09-14 | Swinging screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204953324U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513294A (en) * | 2016-12-05 | 2017-03-22 | 益阳胜希机械设备制造有限公司 | Tea lifting type plane circular sifter |
| CN108499860A (en) * | 2018-03-28 | 2018-09-07 | 新乡市阿徕德机械设备有限公司 | Transmission device on round swinging screen |
-
2015
- 2015-09-14 CN CN201520710329.7U patent/CN204953324U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106513294A (en) * | 2016-12-05 | 2017-03-22 | 益阳胜希机械设备制造有限公司 | Tea lifting type plane circular sifter |
| CN108499860A (en) * | 2018-03-28 | 2018-09-07 | 新乡市阿徕德机械设备有限公司 | Transmission device on round swinging screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |