CN203926760U - A kind of bolt seal assembly - Google Patents
A kind of bolt seal assembly Download PDFInfo
- Publication number
- CN203926760U CN203926760U CN201420380595.3U CN201420380595U CN203926760U CN 203926760 U CN203926760 U CN 203926760U CN 201420380595 U CN201420380595 U CN 201420380595U CN 203926760 U CN203926760 U CN 203926760U
- Authority
- CN
- China
- Prior art keywords
- bolt
- slide plate
- cylindrical shell
- sleeve
- coal pulverizer
- 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
- 239000003245 coal Substances 0.000 claims abstract description 33
- 210000004907 gland Anatomy 0.000 claims abstract description 17
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 3
- 238000012856 packing Methods 0.000 claims description 11
- 239000003250 coal slurry Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 9
- 238000007789 sealing Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 210000001138 tear Anatomy 0.000 description 1
Landscapes
- Crushing And Grinding (AREA)
Abstract
The utility model discloses a kind of bolt seal assembly, comprise the bolt passing in the liner plate from coal pulverizer cylindrical shell, sleeve, slide plate, gland nut and butterfly spring, sleeve is cylindrical, one end of sleeve is affixed on coal pulverizer cylindrical shell and the surface of contact of end and coal pulverizer cylindrical shell seals, the axis of sleeve and the dead in line of bolt, slide plate and several butterfly springs are all arranged in sleeve, 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 cluster spring, by the vertex of a cone, mutually push against, sheathed some groups of cluster spring on bolt, the cluster spring that is positioned at two ends is resisted against respectively on coal pulverizer cylindrical shell and slide plate, O type circle is installed between slide plate and sidewall, gland nut pushes against on slide plate and by elastic force and keeps bolt to be tightened on coal pulverizer cylindrical shell.The utlity model has good seal performance, advantage simple in structure.
Description
Technical field
The utility model relates to a kind of 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.
Chinese patent CN203488708U has announced a kind of abrasive blast equipment, comprise cylindrical shell, liner plate, screw rod, nut and seal arrangement, screw rod is connected cylindrical shell and liner plate with nut, the bolt hole of seal arrangement sealed cylinder and penetrate the gap between the screw rod of bolt hole, seal arrangement comprises above-mentioned sealing gasket.
Above-mentioned seal arrangement easily weares and teares, and it is bad that the time has been grown sealing effect, and structure easily lost efficacy.
Summary of the invention
The deficiency easily losing efficacy in order to overcome existing bolt sealing structure, the utility model provides a kind of bolt seal assembly, can effectively avoid water coal slurry to leak from bolt hole, and good seal performance is simple in structure.
To achieve these goals, the technological scheme that the utility model adopts is: a kind of 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, one end of described sleeve is affixed on coal pulverizer cylindrical shell and the surface of contact of end and coal pulverizer cylindrical shell seals, the axis of described sleeve and the dead in line of bolt, described slide plate and several butterfly springs are all arranged in sleeve, 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, sheathed some groups of cluster spring on bolt, the cluster spring that is positioned at two ends is resisted against respectively on coal pulverizer cylindrical shell and slide plate, O type circle is installed between described slide plate and sidewall, described gland nut pushes against on slide plate and by elastic force and keeps bolt to be tightened on coal pulverizer cylindrical shell.
In above-mentioned a kind of bolt seal assembly, between described gland nut and slide plate, be also provided with packing ring.
In above-mentioned a kind of bolt seal assembly, the quantity of described cluster spring is no less than two groups.
In above-mentioned a kind of bolt seal assembly, on the circumferential surface of described slide plate, offer annular groove, described O type circle is arranged in annular groove.
Adopt after said structure, the advantage that compared to the prior art the utility model had is:
1, one end of sleeve is connected and is sealed on coal pulverizer cylindrical shell, can effectively avoid leaking the gap of water coal slurry between sleeve and coal pulverizer cylindrical shell.
2, on bolt sheathed cluster spring and cluster spring to be resisted against respectively the spring force that can make sleeve be subject on coal pulverizer cylindrical shell and slide plate even, direction is stable, keeps bolt to be tightened on liner plate, overall performance is stable.
3, O type circle is installed between slide plate and sidewall and can effectively stops that bolt hole penetrates into the liquid outflow in sleeve, plays the effect of sealing.
4, 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 seal up the gap of through hole and the bolt of slide plate simultaneously, and packing ring can prevent gland nut reversion.
5, the axis of sleeve and the dead in line of bolt, the motion conformity of keep-spring group, spring stress is even.
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, packing ring; 3, O type circle; 4, slide plate; 4a, annular groove; 5, butterfly spring; 5a, the vertex of a cone; 5b, the cone end; 5c, cluster spring; 6, sleeve; 7, liner plate; 8, bolt; 9, cylindrical shell; 10, bolt hole; .
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 bolt seal assembly, comprise the bolt 8 passing in the liner plate 7 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, be preferably six butterfly springs 5, sleeve 6 is cylindrical, one end of sleeve 6 is affixed on coal pulverizer cylindrical shell 9 and the surface of contact of end and coal pulverizer cylindrical shell 9 seals, the dead in line of the axis of sleeve 6 and bolt 8, slide plate 4 and six butterfly springs 5 are all arranged in sleeve 6, sleeve 6 is affixed on coal pulverizer cylindrical shell 9, the conventional method that adopts full weld, simple in structure, easy to process, good sealing effect, the dead in line of the axis of sleeve 6 and bolt 8, can make the butterfly spring 5 of slip on bolt 8 and the glide direction unification of slide plate 4, stressed even, 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 three groups of cluster spring 5c, the vertex of a cone 5a of its both sides acies is resisted against respectively in a side of base plate 6a and slide plate 4, cluster spring 5c pushes against successively, force variation is large, can make bolt 8 be tightened to for a long time on liner plate 7, assurance structure is permanently effective, on the opposite side of slide plate 4, pushed against packing ring 2, gland nut 1 is tightened onto on bolt 8 and promotes packing ring 2 cluster spring 5c is pushed against on coal pulverizer cylindrical shell 9.
Operating procedure of the present utility model: the through hole concentric that one end full weld of sleeve 6 is passed to the outer side surface of coal pulverizer cylindrical shell 9 and with bolt 8; Bolt 8 is passed to liner plate 7 and coal pulverizer cylindrical shell 9 successively, and the head of bolt 8 is arranged in the bolt hole 10 on liner plate 7; On screw rod, load onto three groups of cluster spring 5c and cluster spring 5c pushed against on the outer side surface of coal pulverizer cylindrical shell 9, in the annular groove 4a of slide plate 4, install O type circle 3, and slide plate 4 is installed on screw rod and pushes against on the cluster spring 5c in sleeve 6 sheathed upper gasket 2 and gland nut 1 on screw rod.
Gland nut 1 rotates promotion packing ring 2 on bolt 8 and slide plate 4 moves along screw rod direction, bolt 8 is tightened on bolt hole 10, gland nut 1 continues packing washer 2 and slide plate 4, slide plate 4 extrusion spring group 5c are to the outer side surface of coal pulverizer cylindrical shell 9, water coal slurry enters in sleeve 6 along the gap between bolt 8 and coal pulverizer cylindrical shell 9, due to O type circle 3 being installed between slide plate 4 and sidewall 6b, O type circle 3 can effectively prevent that water coal slurry from oozing out from sidewall 6b direction, on the outer side wall 6b of slide plate 4, packing ring 2 is installed, can prevent from flowing out the gap of water coal slurry between screw rod and slide plate 4, water coal slurry can only be present in sleeve 6 and can not ooze out in sum, overall sealing performance Hao Qie mechanism is simple.
Lining plate of coal grinder bolt seal assembly is widely used at present, and other structure and principle are same as the prior art, repeat no more here.
Claims (4)
1. a 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, one end of described sleeve is affixed on coal pulverizer cylindrical shell and the surface of contact of end and coal pulverizer cylindrical shell seals, the axis of described sleeve and the dead in line of bolt, described slide plate and several butterfly springs are all arranged in sleeve, 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, sheathed some groups of cluster spring on bolt, the cluster spring that is positioned at two ends is resisted against respectively on coal pulverizer cylindrical shell and slide plate, O type circle is installed between described slide plate and sidewall, described gland nut pushes against on slide plate and by elastic force and keeps bolt to be tightened on coal pulverizer cylindrical shell.
2. a kind of bolt seal assembly according to claim 1, is characterized in that: between described gland nut and slide plate, be also provided with packing ring.
3. a kind of bolt seal assembly according to claim 1 and 2, is characterized in that: the quantity of described cluster spring is no less than two groups.
4. a kind of bolt seal assembly according to claim 1 and 2, is characterized in that: on the circumferential surface of described slide plate, offer annular groove, described O type circle is arranged in annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420380595.3U CN203926760U (en) | 2014-07-10 | 2014-07-10 | A kind of bolt seal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420380595.3U CN203926760U (en) | 2014-07-10 | 2014-07-10 | A kind of bolt seal assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926760U true CN203926760U (en) | 2014-11-05 |
Family
ID=51822571
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420380595.3U Expired - Fee Related CN203926760U (en) | 2014-07-10 | 2014-07-10 | A kind of bolt seal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926760U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106732991A (en) * | 2016-11-23 | 2017-05-31 | 江西稀有稀土金属钨业集团有限公司 | A kind of lining board of grinder bolt hole leakproof sizing device |
| CN112805488A (en) * | 2018-10-04 | 2021-05-14 | 日本发动机股份有限公司 | Spring device |
-
2014
- 2014-07-10 CN CN201420380595.3U patent/CN203926760U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106732991A (en) * | 2016-11-23 | 2017-05-31 | 江西稀有稀土金属钨业集团有限公司 | A kind of lining board of grinder bolt hole leakproof sizing device |
| CN112805488A (en) * | 2018-10-04 | 2021-05-14 | 日本发动机股份有限公司 | Spring device |
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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 |