CN204922005U - Pivot terminal surface gas tight sealing - Google Patents
Pivot terminal surface gas tight sealing Download PDFInfo
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- CN204922005U CN204922005U CN201520624024.4U CN201520624024U CN204922005U CN 204922005 U CN204922005 U CN 204922005U CN 201520624024 U CN201520624024 U CN 201520624024U CN 204922005 U CN204922005 U CN 204922005U
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- shaft
- conveyer
- auger shaft
- axle sleeve
- face
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Abstract
The utility model relates to a pivot terminal surface gas tight sealing, including setting up the horizontal auger shaft in the auger shaft cover, the auger shaft cover is worn out respectively at horizontal auger shaft's both ends, and horizontal auger shaft wears out the rolling bearing unit who installs on the tip of auger shaft cover with auger shaft cover terminal surface fixed connection, lie in on the horizontal auger shaft between terminal surface and the rolling bearing unit of auger shaft cover ab intra outwards in proper order the cover be equipped with electrician's board, thick felt circle, rubber seal, thin felt circle, annular iron sheet to through connecting bolt and auger shaft cover terminal surface fixed connection, rubber seal middle part has an annular atmoseal chamber, and rubber seal radially sets up the inlet port that is linked together with annular atmoseal chamber, install the choke valve that admits air on the inlet port. This sealing device is compact structure not only, and the leakproofness is good moreover, can prevent that the powder from leaking.
Description
Technical field
The utility model relates to a kind of rotating shaft end face gas-tight sealing.
Background technique
Auger quantitative scale be mainly used in weigh powder, and if screw-conveyer-shaft does not have seal arrangement, easily cause powder to spill.Current screw-conveyer-shaft is that sealing means mainly uses sealed nylon circle, or carbon seal ring.But because seal ring often needs and screw-conveyer-shaft friction, easily damage, but but not easily change.Need a kind of new seal arrangement for this reason.
Summary of the invention
The purpose of this utility model is to provide a kind of rotating shaft end face gas-tight sealing, sealing device not only compact structure, and good airproof performance, can prevent powder from leaking.
The technical solution of the utility model is: a kind of rotating shaft end face gas-tight sealing, comprise the horizontal screw-conveyer-shaft be arranged in auger axle sleeve, the two ends of described horizontal screw-conveyer-shaft pass auger axle sleeve respectively, the end that horizontal screw-conveyer-shaft passes auger axle sleeve is provided with the rolling bearing units be fixedly connected with auger end face of shaft bush, described horizontal screw-conveyer-shaft is arranged with electrician's plate successively from inside to outside between the end face of screw-conveyer-shaft cover and rolling bearing units, thick felt circle, rubber seal, thin felt circle, annular iron plate, and be fixedly connected with auger end face of shaft bush through connecting bolt, there is in the middle part of described rubber seal annular sealing gland chamber, the radial direction of rubber seal offers the inlet hole be connected with annular sealing gland chamber, described inlet hole is provided with intake-air throttle valve.
Further, top, described auger axle sleeve side has material feeding mouth, and the opposite side bottom of auger axle sleeve has discharge port, and the opposite side top of auger axle sleeve is provided with removable shrouding.
Further, the end face of described auger axle sleeve is provided with fixed plate, has the through hole passed for horizontal screw-conveyer-shaft in the middle part of described fixed plate, and described electrician's plate is annular, and electrician's plate inner side surface and fixed plate fit tightly.
Further, the inner ring of described thick felt circle and thin felt circle and horizontal screw-conveyer-shaft interference fit, described inlet hole is provided with taper pipe thread.
Further, described horizontal screw-conveyer-shaft one side passes rolling bearing units and is fixedly connected with a belt wheel.
Compared with prior art, the utility model has the following advantages: sealing device not only compact structure, and the dual fail-safe to be made up of felt circle and pressure makes the sealing reliability of seal arrangement and life-span greatly improve, and effectively prevents powder from leaking, decreases the wearing and tearing of horizontal screw-conveyer-shaft simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A district enlarged view of Fig. 1 of the present utility model;
In figure: 1-auger axle sleeve 2-horizontal screw-conveyer-shaft 3-rolling bearing units 4-electrician plate 5-thick felt circle 6-rubber seal 61-annular sealing gland chamber 62-inlet hole 7-thin felt circle 8-annular iron plate 9-connecting bolt 10-annular sealing gland chamber 11-material feeding mouth 12-discharge port 13-removable shrouding 14-fixed plate 15-belt wheel.
Embodiment
For above-mentioned feature and advantage of the present utility model can be become apparent, special embodiment below, and coordinate accompanying drawing, be described in detail below, but the utility model is not limited to this.
With reference to figure 1 and Fig. 2
A kind of rotating shaft end face gas-tight sealing, comprise the horizontal screw-conveyer-shaft 2 be arranged in auger axle sleeve 1, the two ends of described horizontal screw-conveyer-shaft pass auger axle sleeve respectively, the end that horizontal screw-conveyer-shaft passes auger axle sleeve is provided with the rolling bearing units 3 be fixedly connected with auger end face of shaft bush, described horizontal screw-conveyer-shaft is arranged with electrician's plate 4 successively from inside to outside between the end face of screw-conveyer-shaft cover and rolling bearing units, thick felt circle 5, rubber seal 6, thin felt circle 7, annular iron plate 8, and be fixedly connected with auger end face of shaft bush through connecting bolt 9, there is in the middle part of described rubber seal annular sealing gland chamber 61, the radial direction of rubber seal offers the inlet hole 62 be connected with annular sealing gland chamber, described inlet hole is provided with intake-air throttle valve 10.
An annular cavity is opened in the face contacted with horizontal screw-conveyer-shaft in annular sealing gland chamber, and such gas enters from inlet hole, can form high pressure inside this annular cavity.This high pressure can produce a radial force to screw-conveyer-shaft, decrease horizontal screw-conveyer-shaft surface and seal arrangement, with the frictional force of auger end face, decrease the wearing and tearing of horizontal screw-conveyer-shaft.
The plate of seal arrangement and end contact adopts electrician's plate, and mainly electrician's plate is softer relative to quality iron plate, when coordinating with auger end face of shaft bush, trickle distortion can occur, being close to auger end face of shaft bush.If material is changed into steel plate, then need the surface roughness requirements of two surface of contact very high, guarantee two faces fit tightly.
Electrician's plate why with thick felt circle, be because this face be in order to the dust intercepted inside auger axle sleeve run out of, and adopt the words effect of thin felt can be poor.Felt is used to be because felt can be breathed freely.If this air seal set is not breathed freely, this air-flow cannot flow inside sealing gland chamber, and the air pressure of the inside can be caused too high, and horizontal like this screw-conveyer-shaft and gas friction can be very large, can produce the noises such as sonic boom.
Why in thin felt circle because of whole seal arrangement be with bolt lock on auger end face.This face of iron plate is exactly the nut surface of contact with connecting bolt, and main impacting force all acts on iron plate, and iron plate compare be not easy damage.
In the present embodiment, for the ease of charging, top, described auger axle sleeve side has material feeding mouth 11, and the opposite side bottom of auger axle sleeve has discharge port 12, and the opposite side top of auger axle sleeve is provided with removable shrouding 13, to observe the situation in auger axle sleeve.
In the present embodiment, fix for the ease of seal arrangement, the end face of described auger axle sleeve is provided with fixed plate 14, has the through hole passed for horizontal screw-conveyer-shaft in the middle part of described fixed plate, and described electrician's plate is annular, and electrician's plate inner side surface and fixed plate fit tightly.
In the present embodiment, the inner ring of described thick felt circle and thin felt circle and horizontal screw-conveyer-shaft interference fit, described inlet hole is provided with taper pipe thread, and intake-air throttle valve just can be arranged on not to have been had hermetic cavity regulates air-flow size.
In the present embodiment, described horizontal screw-conveyer-shaft one side passes rolling bearing units and is fixedly connected with a belt wheel 15, to drive horizontal screw-conveyer-shaft to rotate.
The working principle of sealing device:
During work, air-flow accesses from the suction port in annular sealing gland chamber, ventilated in the cavity being made up of seal arrangement felt circle nylon6 chips by tracheae, thus form high pressure in cavity, make the pressure of the outer end of screw-conveyer-shaft be greater than pressure inside screw-conveyer-shaft, thus realize preventing powder from leaking.
The foregoing is only preferred embodiment of the present utility model, all equalizations done according to the utility model claim change and modify, and all should belong to covering scope of the present utility model.
Claims (5)
1. a rotating shaft end face gas-tight sealing, comprise the horizontal screw-conveyer-shaft be arranged in auger axle sleeve, it is characterized in that, the two ends of described horizontal screw-conveyer-shaft pass auger axle sleeve respectively, the end that horizontal screw-conveyer-shaft passes auger axle sleeve is provided with the rolling bearing units be fixedly connected with auger end face of shaft bush, described horizontal screw-conveyer-shaft is arranged with electrician's plate successively from inside to outside between the end face of screw-conveyer-shaft cover and rolling bearing units, thick felt circle, rubber seal, thin felt circle, annular iron plate, and be fixedly connected with auger end face of shaft bush through connecting bolt, there is in the middle part of described rubber seal annular sealing gland chamber, the radial direction of rubber seal offers the inlet hole be connected with annular sealing gland chamber, described inlet hole is provided with intake-air throttle valve.
2. a kind of rotating shaft end face gas-tight sealing according to claim 1, is characterized in that, top, described auger axle sleeve side has material feeding mouth, and the opposite side bottom of auger axle sleeve has discharge port, and the opposite side top of auger axle sleeve is provided with removable shrouding.
3. a kind of rotating shaft end face gas-tight sealing according to claim 1, it is characterized in that, the end face of described auger axle sleeve is provided with fixed plate, has the through hole passed for horizontal screw-conveyer-shaft in the middle part of described fixed plate, described electrician's plate is annular, and electrician's plate inner side surface and fixed plate fit tightly.
4. a kind of rotating shaft end face gas-tight sealing according to claim 1,2 or 3, is characterized in that, the inner ring of described thick felt circle and thin felt circle and horizontal screw-conveyer-shaft interference fit, described inlet hole is provided with taper pipe thread.
5. a kind of rotating shaft end face gas-tight sealing according to claim 1,2 or 3, is characterized in that, described horizontal screw-conveyer-shaft one side passes rolling bearing units and is fixedly connected with a belt wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520624024.4U CN204922005U (en) | 2015-08-19 | 2015-08-19 | Pivot terminal surface gas tight sealing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520624024.4U CN204922005U (en) | 2015-08-19 | 2015-08-19 | Pivot terminal surface gas tight sealing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204922005U true CN204922005U (en) | 2015-12-30 |
Family
ID=54971134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520624024.4U Active CN204922005U (en) | 2015-08-19 | 2015-08-19 | Pivot terminal surface gas tight sealing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204922005U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109051632A (en) * | 2018-09-09 | 2018-12-21 | 安徽康迪纳电力科技有限责任公司 | Sealed anti-interference high sensitive signal generator |
-
2015
- 2015-08-19 CN CN201520624024.4U patent/CN204922005U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109051632A (en) * | 2018-09-09 | 2018-12-21 | 安徽康迪纳电力科技有限责任公司 | Sealed anti-interference high sensitive signal generator |
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| GR01 | Patent grant |