CN203926762U - A kind of lining plate of coal grinder bolt seal assembly - Google Patents
A kind of lining plate of coal grinder bolt seal assembly Download PDFInfo
- Publication number
- CN203926762U CN203926762U CN201420381520.7U CN201420381520U CN203926762U CN 203926762 U CN203926762 U CN 203926762U CN 201420381520 U CN201420381520 U CN 201420381520U CN 203926762 U CN203926762 U CN 203926762U
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- China
- Prior art keywords
- sleeve
- cone
- slide plate
- plate
- bolt
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Abstract
The utility model discloses a kind of lining plate of coal grinder bolt seal assembly, comprise the bolt passing in the liner plate from coal pulverizer cylindrical shell, sleeve, slide plate, gland nut and several butterfly springs, butterfly spring is arranged in sleeve, gland nut pushes against on slide plate, butterfly spring is conical plate-like, comprise the vertex of a cone and the cone end, at the bottom of the cone of two butterfly springs, be superimposed and form the cluster spring of elliptic cross-section, between cluster spring, by the vertex of a cone, mutually push against, on bolt, be arranged with some groups of cluster spring and be arranged with butterfly spring at two ends, at the bottom of the cone of butterfly spring, be resisted against respectively on the bottom and slide plate of sleeve, between sleeve and liner plate, be provided with seal ring, O type circle is installed between slide plate and the sidewall of sleeve, on the madial wall of sleeve, offer draw-in groove, jump ring is installed in draw-in groove, slide plate slides in sleeve and can not exceed outside jump ring.The utlity model has good seal performance, stressed uniform advantage.
Description
Technical field
The utility model relates to a kind of lining plate of coal grinder bolt seal assembly.
Background technique
Existing at present, be knownly positioned at the lining-plate bolt sealing configuration that coal pulverizer cylindrical shell and two side ends cover and comprise drum type rubber seal ring, cup-shaped steel pad, lining-plate bolt, nut etc.Cup-shaped pad is delivered to the axial pressing force of nut on drum type rubber seal ring, forms sealing between coal pulverizer cylindrical shell and lining-plate bolt, prevents water coal slurry leakage.But, along with the coal pulverizer prolongation of running time, because rubber material inevitably exists plastic deformation, just place, the lining-plate bolt hole water leakage coal slurry phenomenon that there will be cylindrical shell, the coal that not only wastes raw material, pollutes site environment, if the water coal slurry leaking out enters gear pair or the bearing housing place of transmission system, also can cause these positions that mechanical failure occurs, affect the security of operation of complete equipment.
Summary of the invention
The deficiency easily losing efficacy in order to overcome existing bolt sealing structure, the utility model provides a kind of lining plate of coal grinder bolt seal assembly, can effectively avoid water coal slurry to leak from bolt hole, and good seal performance is stressed even.
To achieve these goals, the technological scheme that the utility model adopts is: a kind of lining plate of coal grinder bolt seal assembly, it is characterized in that, comprise the bolt passing in the liner plate from coal pulverizer cylindrical shell, be set in the sleeve on bolt, slide plate, gland nut and several butterfly springs, described sleeve is cylindrical, described butterfly spring is conical plate-like, comprise the vertex of a cone and the cone end, formation cluster spring is relatively superimposed at the bottom of the cone of two butterfly springs, between two adjacent described cluster spring, by the vertex of a cone, mutually push against, at the bottom of the sheathed cone in bolt two ends butterfly spring outwardly and in the middle of butterfly spring sheathed some groups of cluster spring, at the bottom of the cone of the butterfly spring of one end, be resisted against the bottom of sleeve, at the bottom of the cone of the other end butterfly spring, be resisted against on slide plate, O type circle is installed between described slide plate and the sidewall of sleeve, described gland nut pushes against on slide plate, on the madial wall of described sleeve, offer draw-in groove, in described draw-in groove, jump ring is installed, described slide plate slides in sleeve and can not exceed outside jump ring, between described sleeve and liner plate, be provided with seal ring.
In above-mentioned a kind of lining plate of coal grinder bolt seal assembly, on the outer side surface of the bottom of described sleeve, offer recess hole and mounting hole, described recess hole and mounting hole and sleeve concentric, the diameter of described recess hole is greater than the diameter of mounting hole, on described seal ring, be provided with boss, described seal ring is arranged in recess hole and boss is installed in mounting hole.
In above-mentioned a kind of lining plate of coal grinder bolt seal assembly, the thickness of described seal ring is greater than the degree of depth of recess hole.
In above-mentioned a kind of lining plate of coal grinder bolt seal assembly, between described gland nut and slide plate, be also provided with packing ring.
Adopt after said structure, the advantage that compared to the prior art the utility model had is:
1, between sleeve and liner plate, be provided with seal ring, seal ring is adjacent on liner plate under the elastic force effect of spring, can effectively avoid water coal slurry to leak from bolt hole.
2, at the bottom of the cone of butterfly spring, be resisted against respectively the spring force that can make sleeve be subject on the bottom of sleeve and slide plate even, direction is stable, and overall performance is good.
3, O type circle is installed between slide plate and the sidewall of sleeve and can effectively stops that bolt hole penetrates into the liquid outflow in sleeve, plays the effect of dual fail-safe.
4, on the madial wall of sleeve, jump ring is set, effectively defines the range of movement of slide plate, make whole structure unified, high conformity.
5, between gland nut and slide plate, be also provided with packing ring, gland nut can effectively be pressed on slide plate, and packing ring can prevent gland nut reversion.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Fig. 1 is structural representation of the present utility model;
In figure: 1, gland nut; 2, jump ring; 3, O type circle; 4, slide plate; 4a, draw-in groove; 5, butterfly spring; 5a, the vertex of a cone; 5b, the cone end; 5c, cluster spring; 6, sleeve; 6a, bottom; 6b, sidewall; 6c, annular groove; 6d, mounting hole; 6e, recess hole; 7, seal ring; 7a, boss; 8, bolt; 9, cylindrical shell; 10, bolt hole; 11, liner plate; 12, packing ring.
Embodiment
The following stated is only preferred embodiment of the present utility model, does not therefore limit protection domain of the present utility model.
Embodiment, as shown in Figure 1: a kind of lining plate of coal grinder bolt seal assembly, comprise the bolt 8 passing in the liner plate 11 from coal pulverizer cylindrical shell 9, be set in the sleeve 6 on bolt 8, slide plate 4, gland nut 1 and several butterfly springs 5, sleeve 6 is cylindrical, comprise bottom 6a and sidewall 6b, on the outer side surface of bottom 6a, offer recess hole 6e and mounting hole 6d, recess hole 6e and mounting hole 6d and sleeve 6 concentrics, the diameter of recess hole 6e is greater than the diameter of mounting hole 6d, butterfly spring 5 is arranged in sleeve 6, butterfly spring 5 is conical plate-like, comprise vertex of a cone 5a and cone end 5b, at the bottom of the cone of two butterfly springs 5,5b is relatively superimposed and forms the cluster spring 5c of elliptic cross-section, between cluster spring 5c, by vertex of a cone 5a, mutually push against, on bolt 8, be arranged with some groups of cluster spring 5c and at two ends, be arranged with butterfly spring 5, cluster spring is preferably two groups, at the bottom of the cone of butterfly spring 5,5b is resisted against respectively in the bottom 6a of sleeve 6 and a side of slide plate 4, butterfly spring 5 and cluster spring 5c push against successively, force variation is large, can make bolt 8 be tightened to for a long time on liner plate 11, assurance structure is permanently effective, between sleeve 6 and liner plate 11, be provided with seal ring 7, on seal ring 7, be provided with boss 7a, seal ring 7 is arranged in recess hole 6e and boss 7a is installed in mounting hole 6d, the thickness of seal ring 7 is greater than the degree of depth of recess hole 6e, thereby make the bottom 6a of the outstanding sleeve 6 in bottom surface of seal ring 7.
On slide plate 4, offer annular groove 6c, O type circle 3 is installed in annular groove 6c, extruding and sealing mutually between O type circle 3 and the sidewall 6b of sleeve 6, on the madial wall 6b of sleeve 6, offer draw-in groove 4a, jump ring 2 is installed in draw-in groove 4a, slide plate 4 slides in sleeve 6 and can not exceed outside jump ring 2, and packing ring 12 is installed on the opposite side of slide plate 4, and gland nut 1 is tightened onto on bolt 8 and pushes against packing ring 12.
Operating procedure of the present utility model: bolt 8 is passed to liner plate 11 and coal pulverizer cylindrical shell 9 successively, and the head of bolt 8 is arranged in the bolt hole 10 on liner plate 11; On the outer side surface of sleeve 6, seal ring 7 is arranged in recess hole 6e and boss 7a is installed in mounting hole 6d, the sleeve 6 that installs seal ring 7 is installed on screw rod, on screw rod, load onto butterfly spring 5 and make to bore end 5b and abut on the 6a of bottom, packing cluster spring 5c and cone end 5b butterfly spring 5 outwardly into, in the annular groove 6c of slide plate 4, load onto O type circle 3, and slide plate 4 is installed on screw rod and promotes butterfly spring 5 and enter in sleeve 6, in the draw-in groove 4a of sleeve 6, install jump ring 2, sheathed upper gasket 12 tighten gland nut 1 on screw rod;
Gland nut 1 promotes slide plate 4 and moves, bolt 8 is tightened on bolt hole 10, gland nut 1 continues to compress slide plate 4, butterfly spring 5 and cluster spring 5c are pressed on cylinder, seal ring 7 is close on coal pulverizer housing and seals up under gland nut 1 and bolt 8 and elastic force effect, has effectively prevented that water coal slurry is from bolt hole 10 leakages.
Lining plate of coal grinder 11 bolt seal assemblies are widely used at present, and other structure and principle are same as the prior art, repeat no more here.
Claims (4)
1. a lining plate of coal grinder bolt seal assembly, it is characterized in that, comprise the bolt passing in the liner plate from coal pulverizer cylindrical shell, be set in the sleeve on bolt, slide plate, gland nut and several butterfly springs, described sleeve is cylindrical, described butterfly spring is conical plate-like, comprise the vertex of a cone and the cone end, formation cluster spring is relatively superimposed at the bottom of the cone of two butterfly springs, between two adjacent described cluster spring, by the vertex of a cone, mutually push against, at the bottom of the sheathed cone in bolt two ends butterfly spring outwardly and in the middle of two butterfly springs sheathed some groups of cluster spring, at the bottom of the cone of the butterfly spring of one end, be resisted against the bottom of sleeve, at the bottom of the cone of the other end butterfly spring, be resisted against on slide plate, O type circle is installed between described slide plate and the sidewall of sleeve, described gland nut pushes against on slide plate, on the madial wall of described sleeve, offer draw-in groove, in described draw-in groove, jump ring is installed, described slide plate slides in sleeve and can not exceed outside jump ring, between described sleeve and liner plate, be provided with seal ring.
2. a kind of lining plate of coal grinder bolt seal assembly according to claim 1, it is characterized in that: on the outer side surface of the bottom of described sleeve, offer recess hole and mounting hole, described recess hole and mounting hole and sleeve concentric, the diameter of described recess hole is greater than the diameter of mounting hole, on described seal ring, be provided with boss, described seal ring is arranged in recess hole and boss is installed in mounting hole.
3. a kind of lining plate of coal grinder bolt seal assembly according to claim 2, is characterized in that: the thickness of described seal ring is greater than the degree of depth of recess hole.
4. a kind of lining plate of coal grinder bolt seal assembly according to claim 1 and 2, is characterized in that: between described gland nut and slide plate, be also provided with packing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420381520.7U CN203926762U (en) | 2014-07-10 | 2014-07-10 | A kind of lining plate of coal grinder bolt seal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420381520.7U CN203926762U (en) | 2014-07-10 | 2014-07-10 | A kind of lining plate of coal grinder bolt seal assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926762U true CN203926762U (en) | 2014-11-05 |
Family
ID=51822573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420381520.7U Expired - Fee Related CN203926762U (en) | 2014-07-10 | 2014-07-10 | A kind of lining plate of coal grinder bolt seal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926762U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842752A (en) * | 2019-11-29 | 2020-02-28 | 衡阳鸿宇机械制造有限公司 | Efficient wear-resistant village plate and using method thereof |
| CN114060384A (en) * | 2021-09-30 | 2022-02-18 | 中国神华煤制油化工有限公司 | Bolt sealing structure of rod mill barrel and rod mill |
-
2014
- 2014-07-10 CN CN201420381520.7U patent/CN203926762U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110842752A (en) * | 2019-11-29 | 2020-02-28 | 衡阳鸿宇机械制造有限公司 | Efficient wear-resistant village plate and using method thereof |
| CN114060384A (en) * | 2021-09-30 | 2022-02-18 | 中国神华煤制油化工有限公司 | Bolt sealing structure of rod mill barrel and rod 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 |
Granted publication date: 20141105 Termination date: 20150710 |
|
| EXPY | Termination of patent right or utility model |