CN203926761U - A kind of for lining plate of coal grinder bolt seal assembly - Google Patents
A kind of for lining plate of coal grinder bolt seal assembly Download PDFInfo
- Publication number
- CN203926761U CN203926761U CN201420381287.2U CN201420381287U CN203926761U CN 203926761 U CN203926761 U CN 203926761U CN 201420381287 U CN201420381287 U CN 201420381287U CN 203926761 U CN203926761 U CN 203926761U
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- plate
- bolt
- base plate
- slide plate
- cone
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Abstract
The utility model discloses a kind of for lining plate of coal grinder bolt seal assembly, 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, sleeve is cylindrical, comprise base plate and vertical surrounding and be connected in the sidewall on base plate, on base plate, offer seal groove, seal ring is installed in seal groove, 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 base plate and slide plate, O type circle is installed between slide plate and sidewall, gland nut pushes against on slide plate and by seal ring push-tight and is sealed 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 for 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.
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, it is a kind of for lining plate of coal grinder bolt seal assembly that the utility model provides, and 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 for 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, comprise base plate and vertical surrounding and be connected in the sidewall on base plate, on described base plate, offer seal groove, in described seal groove, seal ring is installed, 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 base plate and slide plate, O type circle is installed between described slide plate and sidewall, described gland nut pushes against on slide plate and by seal ring push-tight and is sealed on coal pulverizer cylindrical shell.
Above-mentioned a kind of for lining plate of coal grinder bolt seal assembly, between described gland nut and slide plate, be also provided with packing ring.
Above-mentioned a kind of for lining plate of coal grinder bolt seal assembly, the quantity of described cluster spring is no less than two groups.
A kind of for lining plate of coal grinder bolt seal assembly, described sidewall is tubular shape above-mentioned, and described base plate is the external diameter of circular plate type and base plate and the internal diameter of sidewall matches, and described base plate seals and be affixed to one end of sidewall.
Above-mentioned, a kind ofly for lining plate of coal grinder 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, between sleeve and coal pulverizer cylindrical shell, be provided with seal ring, seal ring is adjacent on coal pulverizer cylindrical shell under the elastic force effect of spring, 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 base plate and slide plate even, direction is stable, overall performance is good.
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.
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; 6a, base plate; 6b, sidewall; 6c, seal groove; 7, seal ring; 8, bolt; 9, cylindrical shell; 10, bolt hole; 11, liner plate.
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 for 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 six butterfly springs 5, sleeve 6 is cylindrical, comprise base plate 6a and sidewall 6b, sidewall 6b is tubular shape, base plate 6a is the external diameter of circular plate type and base plate 6a and the internal diameter of sidewall 6b matches, by base plate 6a and sidewall 6b separate can make convenient for production, processing is simple, base plate 6a seals and is affixed to one end of sidewall 6b, on the outer side surface of base plate 6a, offer seal groove 6c, seal groove 6c and sleeve 6 concentrics, seal ring 7 is installed in annular groove 4a, 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 11, assurance structure is permanently effective.
On the excircle of slide plate 4, offer annular groove 4a, O type circle 3 is installed in annular groove 4a, between O type circle 3 and the sidewall 6b of sleeve 6, extruding and sealing mutually, has pushed against packing ring 2 on the opposite side of slide plate 4, and gland nut 1 is tightened onto on bolt 8 and promotes packing ring 2 and pushes against on slide plate 4.
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 seal groove 6c, the sleeve 6 that installs seal ring 7 is installed on screw rod, on screw rod, load onto three groups of cluster spring 5c and cluster spring 5c is pushed against on base plate 6a, 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 base plate 6a, seal ring 7 mutually pushes with the surface of coal pulverizer cylindrical shell 9 under elastic force effect simultaneously, seal ring 7 and the surface of contact of coal pulverizer cylindrical shell 9 are sealed up, prevent that water coal slurry from flowing out from the surperficial gap of base plate 6a and 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 (5)
1. one kind for 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, comprise base plate and vertical surrounding and be connected in the sidewall on base plate, on described base plate, offer seal groove, in described seal groove, seal ring is installed, 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 base plate and slide plate, O type circle is installed between described slide plate and sidewall, described gland nut pushes against on slide plate and by seal ring push-tight and is sealed on coal pulverizer cylindrical shell.
2. according to claim 1 a kind of for lining plate of coal grinder bolt seal assembly, it is characterized in that: between described gland nut and slide plate, be also provided with packing ring.
3. according to claim 1 and 2 a kind of for lining plate of coal grinder bolt seal assembly, it is characterized in that: the quantity of described cluster spring is no less than two groups.
4. according to claim 1 and 2 a kind of for lining plate of coal grinder bolt seal assembly, it is characterized in that: described sidewall is tubular shape, described base plate is the external diameter of circular plate type and base plate and the internal diameter of sidewall matches, and described base plate seals and be affixed to one end of sidewall.
5. according to claim 1 and 2 a kind of for lining plate of coal grinder bolt seal assembly, it 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 |
|---|---|---|---|
| CN201420381287.2U CN203926761U (en) | 2014-07-10 | 2014-07-10 | A kind of for lining plate of coal grinder bolt seal assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420381287.2U CN203926761U (en) | 2014-07-10 | 2014-07-10 | A kind of for lining plate of coal grinder bolt seal assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203926761U true CN203926761U (en) | 2014-11-05 |
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ID=51822572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420381287.2U Expired - Fee Related CN203926761U (en) | 2014-07-10 | 2014-07-10 | A kind of for lining plate of coal grinder bolt seal assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203926761U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622542A (en) * | 2018-12-06 | 2019-04-16 | 中国航发贵州黎阳航空动力有限公司 | Fanjet bearing case bearing insert processes protective device and method |
| CN110259809A (en) * | 2019-07-29 | 2019-09-20 | 河南四达电力设备股份有限公司 | It is a kind of to determine torque pressure attachment means |
| CN111706587A (en) * | 2020-05-29 | 2020-09-25 | 江苏永昊高强度螺栓有限公司 | Bolt with elastic structure |
-
2014
- 2014-07-10 CN CN201420381287.2U patent/CN203926761U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622542A (en) * | 2018-12-06 | 2019-04-16 | 中国航发贵州黎阳航空动力有限公司 | Fanjet bearing case bearing insert processes protective device and method |
| CN109622542B (en) * | 2018-12-06 | 2021-11-12 | 中国航发贵州黎阳航空动力有限公司 | Turbofan engine supporting case bearing bush machining protection device and method |
| CN110259809A (en) * | 2019-07-29 | 2019-09-20 | 河南四达电力设备股份有限公司 | It is a kind of to determine torque pressure attachment means |
| CN110259809B (en) * | 2019-07-29 | 2024-05-17 | 河南四达数字安防科技有限公司 | Fastening method of fixed torque pressure fastener |
| CN111706587A (en) * | 2020-05-29 | 2020-09-25 | 江苏永昊高强度螺栓有限公司 | Bolt with elastic structure |
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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 |