CN203778154U - Feeding bush of ball mill and sealing structure - Google Patents
Feeding bush of ball mill and sealing structure Download PDFInfo
- Publication number
- CN203778154U CN203778154U CN201320853926.6U CN201320853926U CN203778154U CN 203778154 U CN203778154 U CN 203778154U CN 201320853926 U CN201320853926 U CN 201320853926U CN 203778154 U CN203778154 U CN 203778154U
- Authority
- CN
- China
- Prior art keywords
- feeding
- bushing
- conical surface
- ring flange
- ball mill
- 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
Abstract
The utility model discloses a feeding bush of a ball mill and a sealing structure. The feeding bush comprises a feeding end cover, a feeding bush body and bolt components, wherein a round flange disc is arranged at an outer opening of the feeding bush body; the feeding bush body is provided with a cylindrical step extending inwards from the flange disc, and the outer surface of an inner opening of the feeding bush body is a conical surface which gradually becomes larger from inside to outside; the outer end and the inner end of a cylindrical cavity of the feeding end cover are provided with a second flange disc and a second conical surface, respectively; the feeding end cover is provided with a stepped hole which extends inwards from the second flange disc; sealing glue is applied between the conical surface and the second conical surface, and the feeding bush body is fastened on the feeding end cover by using the bolt components; a fastening gap is reserved between the flange disc and the second flange disc. The feeding bush and the sealing structure disclosed by the utility model have the advantages that the difficulty in assembly in an original packing sealing mode is overcome, and the service life of the feeding bush is prolonged; bolts replacing studs serve as connectors between the feeding bush body and the feeding end cover, so that the difficulty in replacement of the broken fastened studs is reduced.
Description
Technical field
The utility model relates to bushing for feeding of ball mill technical field, specifically a kind of bushing for feeding of ball mill and hermetically-sealed construction.
Background technology
At present, bushing for feeding of ball mill and charging end cap are processed as the face of cylinder, are wrapped with packing and feed end lid is assembled together on bushing for feeding, as ensureing sealing, can bring certain difficulty to assembling like this, once assemble badly, will cause spillage.Also having at bushing for feeding and charging end cap cooperation place adopts seal to coordinate, for example, in the open CN103272668 of Chinese patent disclosed a kind of hermetically-sealed construction, adopt sealing gasket and steel pressure ring to seal, this sealing effectiveness is bad, and because ball mill vibration is larger, be easy to cause the loosening of sealing.Meanwhile, bushing for feeding is connected with end cap and adopts double-screw bolt closing, and on end cap, opens double-screw bolt blind hole, uses double-screw bolt fastening, is difficult to its breaking portion to take out from end cap silk hole after easily causing double-screw bolt fracture.
Utility model content
The utility model, in order to make up the deficiencies in the prior art, provides bushing for feeding of ball mill and the hermetically-sealed construction of another pattern, can meet and can ensure that sealing effectiveness is good.
The technical scheme in the invention for solving the technical problem is:
A kind of bushing for feeding of ball mill, comprise flange portion, the inner portion that is sealed and matched of outer end and be positioned at the passage at bosom position, in described passage, there is an annulus coordinating with feed pipe, it is characterized in that, the external port of described bushing for feeding is the circular flange dish with bolt hole, and bushing for feeding is from the ring flange cylindric step that extends internally, and inner port outer surface is to become gradually from inside to outside the large conical surface.
The maximum diameter of the described conical surface is less than stage portion diameter.
There is helical form projection at the inner surface of described passage.
Described bushing for feeding is ironcasting.
A kind of hermetically-sealed construction of installing for above-mentioned bushing for feeding, comprise charging end cap, bushing for feeding and bolt assembly, described bushing for feeding comprises flange portion, the inner portion that is sealed and matched of outer end and is positioned at the passage at bosom position, in described passage, there is an annulus coordinating with feed pipe, in described charging end cap, there is a cylindrical cavity of holding bushing for feeding
It is characterized in that, the external port of described bushing for feeding is circular flange dish, and bushing for feeding is from the ring flange cylindric step that extends internally, and inner port outer surface is to become gradually from inside to outside the large conical surface;
The outer end of described charging end cap cylindrical cavity and inner be respectively equipped with there is the second ring flange bolt hole and that be equipped with ring flange and inwardly shrink and with second conical surface of bushing for feeding cone match, and charging end cap from the second ring flange extend internally one with the circumferential close-fitting shoulder hole of step, between the conical surface and second conical surface, apply fluid sealant and use bolt assembly that bushing for feeding is fastened on to feed end and cover, and between described ring flange and the second ring flange, be reserved with the gap of 2mm～5mm.
Further, the described conical surface and second conical surface are milling moulding.
Further, the described conical surface and second conical surface cylindrical fit face that extends internally respectively.
The beneficial effects of the utility model are: a kind of bushing for feeding of ball mill and hermetically-sealed construction are provided, reduce the difficulty that in the past adopts packing_seal assembling, extend the service life of bushing for feeding, adopt bolt to replace double-screw bolt as bushing for feeding and feed end lid attachments simultaneously, alleviated the difficulty of changing closing double-screw bolt fracture.
Brief description of the drawings
Fig. 1 is the utility model cutaway view.
Fig. 2 is the partial enlarged drawing at the utility model I place.
Fig. 3 is the partial enlarged drawing at the utility model II place.
In figure: 1 bolt assembly, 2 bushing for feedings, 21 circular flange dishes, 22 cylindric steps, 23 passages, 24 helical form projections, 25 portions that are sealed and matched, 3 charging end caps, 31 second ring flanges, 32 shoulder holes, 33 second conical surfaces, 4 cone match.
Detailed description of the invention
As shown in Figure 1 to Figure 3, a kind of bushing for feeding of ball mill 2, is ironcasting, the double horn mouth shape of entirety for increasing gradually to both sides from centre.In ironcasting, reserve and form by machined:
The flange portion of outer end, forms a circular flange dish 21 in flange portion by machined and from the ring flange cylindric step 22 that extends internally, and at the some bolts hole of the circumferential machined of ring flange, for fastening.Wherein cylindric step 22, for realizing the radial periphery location of outer end of bushing for feeding, can improve the precision of location by improving surface accuracy.
Be positioned at the passage 23 at bosom position, in described passage, be processed to form the annulus for carrying out dynamic seal (packing) cooperation with feed pipe by reserved parallel operation, consistent with practices well, repeat no more.And there is helical form projection 24 at the inner surface of passage 23, to facilitate material to enter in the rotating cylinder of ball mill.
The inner portion that is sealed and matched 25, inner port outer surface is to become gradually from inside to outside the large conical surface, and the maximum diameter of the conical surface is less than stage portion diameter, so that the carrying out of follow-up linkage editor.
The hermetically-sealed construction of installing for above-mentioned bushing for feeding, comprises charging end cap 3, bushing for feeding 2 and bolt assembly 1.
In charging end cap 3, have a cylindrical cavity of holding bushing for feeding, bushing for feeding 2 is nested with in this cavity.The outer end of charging end cap 3 cylindrical cavity is provided with the ring flange having in bolt hole the second ring flange 31, the second ring flanges 31 and bushing for feeding and coordinates, and also corresponding setting one by one of bolt hole.And charging end cap from the second ring flange extend internally one with bushing for feeding on the circumferential close-fitting shoulder hole 32 of step, for realizing the circumferential location of external port, and shoulder hole and cylindric convex have a gap in the axial direction, circumferentially to closely cooperating.
The inner of charging end cap 3 cylindrical cavity be provided with inside contraction and with second conical surface 33 of bushing for feeding cone match, between the conical surface and second conical surface, apply fluid sealant and use bolt assembly that bushing for feeding is fastened on to feed end and cover, form a cone match 4, by be reserved with the gap of 2mm～5mm between ring flange and the second ring flange, make to also have certain supplementary surplus after cone match 4 position wearing and tearing, and compress completely, having extended service life makes, ensure the sealing of bushing for feeding and charging end cap, sealing effectiveness is good, and material is difficult for leaking.
The described conical surface and second conical surface are milling moulding, and at the conical surface and second conical surface cylindrical fit face that extends internally respectively, have the guide effect while installation, and improve the cooperation intensity at conical surface position.
Except the technical characterictic described in description, be the known technology of those skilled in the art.
Claims (7)
1. a bushing for feeding of ball mill, comprise flange portion, the inner portion that is sealed and matched of outer end and be positioned at the passage at bosom position, in described passage, there is an annulus coordinating with feed pipe, it is characterized in that, the external port of described bushing for feeding is the circular flange dish with bolt hole, and bushing for feeding is from the ring flange cylindric step that extends internally; The inner port outer surface of described bushing for feeding is to become gradually from inside to outside the large conical surface.
2. a kind of bushing for feeding of ball mill according to claim 1, is characterized in that, the maximum diameter of the described conical surface is less than stage portion diameter.
3. a kind of bushing for feeding of ball mill according to claim 1 and 2, is characterized in that, has helical form projection at the inner surface of described passage.
4. a kind of bushing for feeding of ball mill according to claim 1, is characterized in that, described bushing for feeding is ironcasting.
5. one kind the hermetically-sealed construction of bushing for feeding is installed, comprise charging end cap, bushing for feeding and bolt assembly, described bushing for feeding comprises flange portion, the inner portion that is sealed and matched of outer end and is positioned at the passage at bosom position, in described passage, there is an annulus coordinating with feed pipe, in described charging end cap, there is a cylindrical cavity of holding bushing for feeding
It is characterized in that, the external port of described bushing for feeding is circular flange dish, and bushing for feeding is from the ring flange cylindric step that extends internally, and the inner port outer surface of described bushing for feeding is to become gradually from inside to outside the large conical surface;
The outer end of described charging end cap cylindrical cavity and inner be respectively equipped with there is the second ring flange bolt hole and that be equipped with ring flange and inwardly shrink and with second conical surface of bushing for feeding cone match, and charging end cap from the second ring flange extend internally one with the circumferential close-fitting shoulder hole of step, between the conical surface and second conical surface, apply fluid sealant and use bolt assembly that bushing for feeding is fastened on to feed end and cover, and between described ring flange and the second ring flange, be reserved with the gap of 2mm～5mm.
6. a kind of hermetically-sealed construction that bushing for feeding is installed according to claim 5, is characterized in that, the described conical surface and second conical surface are milling moulding.
7. a kind of hermetically-sealed construction that bushing for feeding is installed according to claim 5, is characterized in that, the described conical surface and second conical surface cylindrical fit face that extends internally respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320853926.6U CN203778154U (en) | 2013-12-24 | 2013-12-24 | Feeding bush of ball mill and sealing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320853926.6U CN203778154U (en) | 2013-12-24 | 2013-12-24 | Feeding bush of ball mill and sealing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203778154U true CN203778154U (en) | 2014-08-20 |
Family
ID=51314383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320853926.6U Expired - Fee Related CN203778154U (en) | 2013-12-24 | 2013-12-24 | Feeding bush of ball mill and sealing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203778154U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353523A (en) * | 2014-11-26 | 2015-02-18 | 济南重工股份有限公司 | Feeding lining device of ball grinding mill |
-
2013
- 2013-12-24 CN CN201320853926.6U patent/CN203778154U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104353523A (en) * | 2014-11-26 | 2015-02-18 | 济南重工股份有限公司 | Feeding lining device of ball grinding mill |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140820 Termination date: 20201224 |