CN207293369U - Sealing device for screw conveyor and the screw conveyor containing it - Google Patents
Sealing device for screw conveyor and the screw conveyor containing it Download PDFInfo
- Publication number
- CN207293369U CN207293369U CN201721266350.8U CN201721266350U CN207293369U CN 207293369 U CN207293369 U CN 207293369U CN 201721266350 U CN201721266350 U CN 201721266350U CN 207293369 U CN207293369 U CN 207293369U
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- bearing
- bearing block
- dustband
- hole
- screw conveyor
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- Screw Conveyors (AREA)
- Sealing Using Fluids, Sealing Without Contact, And Removal Of Oil (AREA)
Abstract
It the utility model is related to a kind of sealing device for screw conveyor and the screw conveyor containing it, enter decelerating motor for limiting the material in screw conveyor, ensure bearing grease not leakage pollution material at the same time, it includes bearing block, bearing and transmission shaft, through hole is equipped with the bearing block, the transmission shaft is arranged in the through hole, the bearing holder (housing, cover) is arranged on the transmission shaft and is in close contact with the inner wall of the bearing block, described bearing block one end, the dustband group for being sheathed on the transmission shaft and being in close contact with the bearing block inner wall is further included in the through hole, the dustband group includes the first dustband and the second dustband being oppositely arranged, first dustband, formed with gas storage chamber between second dustband.The utility model to being obstructed between bearing and feeder, prevent the material in feeder from entering bearing, while prevent the lubricating grease in bearing from entering feeder, have the function that two-way barrier to seal.
Description
Technical field
The utility model belongs to device for transporting objects technical field, more particularly to a kind of sealing for screw conveyor fills
Put and the screw conveyor containing it.
Background technology
Screw conveyor is a kind of using the spiral revolution of motor drive, elapses material to realize the device of conveying purpose.Its
Middle material can be cement, flyash, lime, sludge, biomass, rubbish etc., generally require in use to spiral transferring
Send and sealed between the screw rod of machine and decelerating motor, to be effectively isolated material, avoid material from entering decelerating motor, and extend
The service life of decelerating motor.Especially when conveying superfine powder, the requirement for sealing device is more high, such as cannot will be spiral
Bar and decelerating motor are isolated, it is easy to cause the damage of gear reducer or drive bearing, larger dimension is caused to user
Accomplish this with production loss.
In order to solve the above-mentioned technical problem, in the prior art for screw conveyor such as using special reduction gear, then
Usually sealed using the bearing seal structure of gear reducer in itself, and for common decelerating motor is used, then usually utilize stone
The friction of disc root and transmission shaft is sealed.However, the friction using graphite packing and transmission shaft is sealed, can be to transmission
Axis causes to damage, the significantly less service life of transmission shaft.
In above-mentioned sealing means, generally require to be put into lubricating grease when being sealed using bearing seal structure, on bearing, this
When can use outside framework oil seal carry out encapsulation process, such as application publication number be 105819177 A of CN utility model patent disclose
A kind of sealing structure of screw conveyor entrance bearing block, including entrance shaft end and the axis on the entrance shaft end
Hold, the bearing is installed on bearing block, is provided with bearing (ball) cover on the outside of the bearing block, the bearing (ball) cover and bearing block it
Between be equipped with the first sealing structure, screw-casing is equipped with the outside of first sealing structure, the first sealing structure is by outside framework oil seal and prevents
Konisphere forms, and the outside framework oil seal is installed on the inner side of sealing ring.But above-mentioned sealing structure sets bone only for the side of bearing
Frame oil sealing, its opposite side cannot play sealing function for lubricating grease, there is the entrance that profit grease can enter screw conveyor
It is interior, cause pollution transportation material..
In view of the above-mentioned problems, technical staff's urgent problem to be solved is that exploitation is a kind of improved for the close of screw conveyor
Seal apparatus and the screw conveyor containing it, can effectively prevent the lubricating grease in bearing from entering in spiral feeding tube, and cause
Convey the pollution of material.
Utility model content
The utility model is directed to above-mentioned technical problem, proposes a kind of sealing device for screw conveyor and the spiral shell containing it
Revolve conveyer.
In order to achieve the above object, the technical solution adopted in the utility model is：
A kind of sealing device for screw conveyor, it includes bearing block, bearing and transmission shaft, is set in the bearing block
Have through hole, the transmission shaft is arranged in the through hole, the bearing holder (housing, cover) be arranged on the transmission shaft and with the bearing block
Wall is in close contact, described bearing block one end, further include in the through hole be sheathed on the transmission shaft and with the bearing
The dustband group that seat inner wall is in close contact, the dustband group include the first dustband and the second dustband being oppositely arranged, institute
State the first dustband, the second dustband and the bearing block inner wall be collectively forming be useful for carrying out one end of the through hole it is close
The gas storage chamber of envelope.
As preferred：It is provided with and is connected with the gas storage chamber with to the gas storage chamber delivery pressure on the bearing block
The air admission hole of contracting gas.
As preferred：The bearing seat in further included in through hole be sheathed in the dustband group and with the bearing block
The sealing axle sleeve that is in close contact of inner wall, the sealing axle sleeve is held between bearing block and dustband group.
As preferred：The ventilation for connecting the gas storage chamber and the air admission hole is provided with the sealing axle sleeve
Hole.
As preferred：The bearing block other end, further include in through hole be sheathed on the transmission shaft and with it is described
The outside framework oil seal that the inner wall of bearing block is in close contact, the outside framework oil seal is held between bearing block and transmission shaft, in order to close
Seal the other end of the through hole.
As preferred：The outside framework oil seal is in close contact with side of the bearing away from dustband group, in order to seal
The side of the bearing.
As preferred：The bearing seat in further included in through hole be sheathed on the outside framework oil seal and with the bearing block
The oil-sealing sleeve that is in close contact of inner wall, the oil-sealing sleeve is held between bearing block and outside framework oil seal.
As preferred：Be additionally provided with the bearing block connected with the through hole with to the bearing conveying lubricating grease into
Oilhole.
A kind of screw conveyor, includes the feeder and decelerating motor of interconnection, the feeder and the electricity that slows down
The above-mentioned sealing device for screw conveyor is connected between machine.
As preferred：The dustband group of the sealing device is between the feeder and the bearing of the sealing device
Connected with obstructing the inner cavity of the feeder with the through hole of the sealing device.
Compared with prior art, it is the advantages of the utility model with beneficial effect：
1st, the utility model forms gas storage by the dustband group of setting, and in the inner wall of the dustband group and bearing block
Chamber, to being obstructed between bearing and feeder, to realize the gas circuit sealing to bearing, prevent the material in feeder from entering
Bearing, while prevent the lubricating grease in bearing from entering feeder, have the function that two-way barrier to seal.
2nd, the utility model sets outside framework oil seal while dustband group is set, and gas circuit sealing and oil are carried out for bearing
Road seals, and is effectively obstructed, is avoided to drive bearing with the material for being not easy to obstruct to the various dust in feeder, greasy dirt etc.
Destruction.
3rd, the dustband group of the utility model and outside framework oil seal are arranged in the through hole of bearing block, and air admission hole and oil inlet
Hole may be contained within bearing block, be said from the angle of maintenance, and convenient dismounting and cleaning, say, structure is more from the angle of device sets
Compact, that saves sealing device uses space.
Brief description of the drawings
Fig. 1 is a kind of the cuing open along its transverse direction of sealing device embodiment for screw conveyor of the utility model
View；
Above in each figure：1st, feeder；2nd, decelerating motor；3rd, transmission shaft；4th, bearing；5th, bearing block；6th, through hole；7th, it is dust-proof
Circle group；71st, the first dustband；72nd, the second dustband；8th, gas storage chamber；9th, air admission hole；10th, sealing axle sleeve；11st, venthole；
12nd, outside framework oil seal；13rd, oil-sealing sleeve；14th, fuel feed hole；15th, thread straight-through connector；16th, lubricating cup.
Embodiment
In the following, the utility model is specifically described by exemplary embodiment.It should be appreciated, however, that do not having
In the case of being further discussed below, element, structure and features in an embodiment can also be advantageously incorporated into other implementations
In mode.
Embodiment：
As shown in Figure 1, the present embodiment provides a kind of sealing device for screw conveyor, it includes bearing block 5, bearing
4 and transmission shaft 3, through hole 6 is equipped with the bearing block 5, and the transmission shaft 3 is arranged in the through hole 6, and the bearing 4 is arranged
It is in close contact in the transmission shaft 3 and with the inner wall of the bearing block 5, described 5 one end of bearing block, go back in the through hole 6
Including the dustband group 7 for being sheathed on the transmission shaft 3 and being in close contact with 5 inner wall of bearing block, the dustband group 7 is wrapped
Include the first dustband 71 and the second dustband 72 being oppositely arranged, first dustband 71, the second dustband 72 and the axis
The inner wall of bearing 5 is collectively forming the gas storage chamber 8 for being useful for being sealed to one end of the through hole 6.
By the dustband group 7 of setting, and the gas storage chamber 8 is formed in the dustband group 7, to the axis
Hold and obstructed between 4 and the feeder 1, realize the gas circuit sealing to the bearing 4, prevent the thing in the feeder 1
Material enters the bearing 4, while prevents the lubricating grease in the bearing 4 from entering the feeder 1, reaches two-way barrier to seal
Effect.
, it is necessary to explanation, term " interior ", " outer ", " on ", " under ", "front", "rear" etc. in the description of the utility model
The orientation or position relationship of instruction are based on position relationship shown in the drawings, are for only for ease of description the utility model and simplification
Description, rather than the device or element of instruction or hint meaning must have specific orientation, with specific azimuth configuration and behaviour
Make, therefore it is not intended that limitation to the utility model.In addition, term " first ", " second ", " the 3rd " are only used for description mesh
, and it is not intended that instruction or hint relative importance.
Further as shown in Figure 1, it can also be multiple that the quantity of the dustband group 7, which can be one, when described dust-proof
The quantity of circle group 7 be one when, can be arranged between the bearing 4 and the feeder 1, or arranged on the bearing 4 with it is described
Between decelerating motor 2；Preferably, the dustband group 7 between the feeder 1 and the bearing 4 to be given described in barrier
The inner cavity of material machine 1 is connected with the through hole 6.The bearing block 5, which is located to further include in through hole 6, to be sheathed in the dustband group 7
And it is held on bearing block 5 and dustband with the sealing axle sleeve 10 of the inner wall close contact of the bearing block 5, the sealing axle sleeve 10
Between group 7.
Further it is connected as shown in Figure 1, being provided with the bearing block 5 with the gas storage chamber 8 with to the gas storage
Chamber 8 conveys the air admission hole 9 of compressed gas.It is provided with the sealing axle sleeve 10 for connecting the gas storage chamber 8 and described
The venthole 11 of air admission hole 9.The air admission hole 9 includes inlet end and outlet side, wherein the inlet end go out to be connected with screw thread it is straight
Pass joint 15, to be connected with compressed gas conveying device.
Further as shown in Figure 1,5 other end of bearing block, being further included in through hole 6 and being sheathed on the transmission shaft 3
The outside framework oil seal 12 that upper and with the bearing block 5 inner wall is in close contact, the outside framework oil seal 12 are held on bearing block 5 and transmission
Between axis 3, in order to seal the other end of the through hole 6.The bearing block 5, which is located to further include in through hole 6, is sheathed on the bone
5 He of bearing block is held on frame oil sealing 12 and with the oil-sealing sleeve 13 of the inner wall close contact of the bearing block 5, the oil-sealing sleeve 13
Between outside framework oil seal 12.The outside framework oil seal 12 is in close contact with side of the bearing 4 away from dustband group 7, in order to close
Seal the side of the bearing 4.It is furthermore preferred that when the quantity of the dustband group 7 is one, the dustband group 7 and described
Outside framework oil seal 12 is respectively arranged on the both sides of the bearing 4, in order to seal the bearing 4, when the quantity of the dustband group 7 is
During two or more, then every side of the bearing 4 is respectively equipped with the dustband group 7 and/or outside framework oil seal 12, specific distribution
Situation, those skilled in the art can be based on the prior art and the utility model disclosure makes choice.
Further connected as shown in Figure 1, being additionally provided with the bearing block 5 with the through hole 6 to be conveyed to the bearing 4
The fuel feed hole 14 of lubricating grease.Wherein described fuel feed hole 14 includes oil inlet end and oil outlet end, and the oil inlet end is connected with lubricating cup 16, institute
The oil outlet end of fuel feed hole 14 is stated between the dustband group 7 and the bearing 4, enters institute in order to limit the lubricating grease
State in feeding cylinder or the decelerating motor 2.
Further as shown in Figure 1, the gas storage chamber 8 in a ring.
As shown in Figure 1, the utility model another specific embodiment also provides a kind of screw conveyor, including interconnection
Feeder 1 and decelerating motor 2, are connected with above-described embodiment between the feeder 1 and the decelerating motor 2 and are used for spiral transferring
Send the sealing device of machine.
Further as shown in Figure 1, the dustband group 7 of the sealing device is located at the feeder 1 and the sealing device
Bearing 4 between connected with obstructing the inner cavity of the feeder 1 with the through hole 6 of the sealing device.
The operation principle of sealing device described in the utility model for screw conveyor：
When in use, one end of the transmission shaft 3 is connected with the screw rod in the feeder 1, the other end subtracts with described
The power output end connection of speed motor 2；Compressed air is conveyed into the gas storage chamber 8 by the air admission hole 9, after having conveyed
The thread straight-through connector 15 is tightened, so that the gas storage chamber 8 seals.Injected by the fuel feed hole 14 to the bearing 4
Lubricating grease, the lubricating grease held for the transmission shaft 3, improves the service life of the bearing 4, lubricating cup is tightened after injection
16, to seal the oil inlet end of the fuel feed hole 14.Due in the gas storage chamber 8 compressed air to first dustband 71
Pressure is produced with second dustband 72 to act on, the sealing function for making the dustband group 7 to both sides be optimal, more effectively
The material for preventing from being not easy to obstruct such as dust, greasy dirt in conveyer enter in the decelerating motor 2, while prevent described
The lubricating grease that bearing 4 is injected enters the feeder 1 to be polluted to the material of transmission.
Claims (10)
1. a kind of sealing device for screw conveyor, it includes bearing block, bearing and transmission shaft, is equipped with the bearing block
Through hole, the transmission shaft are arranged in the through hole, the bearing holder (housing, cover) be arranged on the transmission shaft and with the inner wall of the bearing block
It is in close contact, it is characterised in that：Described bearing block one end, further include in the through hole be sheathed on the transmission shaft and with
The dustband group that the bearing block inner wall is in close contact, the dustband group include the first dustband being oppositely arranged and second and prevent
Konisphere, the inner wall of first dustband, the second dustband and the bearing block are collectively forming one be useful for the through hole
Hold the gas storage chamber sealed.
2. it is used for the sealing device of screw conveyor according to claim 1, it is characterised in that：It is provided with the bearing block
It is connected with the gas storage chamber with to the air admission hole of the gas storage chamber delivery pressure contracting gas.
3. it is used for the sealing device of screw conveyor according to claim 2, it is characterised in that：The bearing seat is in through hole
Inside further include the sealing axle sleeve for being sheathed in the dustband group and being in close contact with the inner wall of the bearing block, the sealing axis
Set is held between bearing block and dustband group.
4. it is used for the sealing device of screw conveyor according to claim 3, it is characterised in that：Set on the sealing axle sleeve
It is useful for connecting the venthole of the gas storage chamber and the air admission hole.
5. it is used for the sealing device of screw conveyor according to claim 1, it is characterised in that：The bearing block other end,
The outside framework oil seal for being sheathed on the transmission shaft and being in close contact with the inner wall of the bearing block is further included in through hole, it is described
Outside framework oil seal is held between bearing block and transmission shaft, in order to seal the other end of the through hole.
6. it is used for the sealing device of screw conveyor according to claim 5, it is characterised in that：The outside framework oil seal with it is described
Side of the bearing away from dustband group is in close contact, in order to seal the side of the bearing.
7. it is used for the sealing device of screw conveyor according to claim 5, it is characterised in that：The bearing seat is in through hole
Inside further include and be sheathed on the outside framework oil seal and pressed from both sides with the oil-sealing sleeve of the inner wall close contact of the bearing block, the oil-sealing sleeve
It is held between bearing block and outside framework oil seal.
8. it is used for the sealing device of screw conveyor according to claim 1, it is characterised in that：Also set up on the bearing block
There is the fuel feed hole connected with the through hole to convey lubricating grease to the bearing.
9. a kind of screw conveyor, includes the feeder and decelerating motor of interconnection, it is characterised in that：The feeder and institute
State the sealing device for being connected between decelerating motor and being used for screw conveyor described in any one of claim 1~8.
10. screw conveyor according to claim 9, it is characterised in that：The dustband group of the sealing device is located at institute
State and connected with obstructing the inner cavity of the feeder and the through hole of the sealing device between the bearing of feeder and the sealing device
It is logical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721266350.8U CN207293369U (en) | 2017-09-29 | 2017-09-29 | Sealing device for screw conveyor and the screw conveyor containing it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721266350.8U CN207293369U (en) | 2017-09-29 | 2017-09-29 | Sealing device for screw conveyor and the screw conveyor containing it |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207293369U true CN207293369U (en) | 2018-05-01 |
Family
ID=62440322
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721266350.8U Active CN207293369U (en) | 2017-09-29 | 2017-09-29 | Sealing device for screw conveyor and the screw conveyor containing it |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207293369U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112207020A (en) * | 2020-09-08 | 2021-01-12 | 广东顺德百涂通智能科技有限公司 | Pressure-bearing type washing screening machine |
| CN114394386A (en) * | 2022-01-19 | 2022-04-26 | 浙江迦南科技股份有限公司 | Novel dry method machine material conveying device |
-
2017
- 2017-09-29 CN CN201721266350.8U patent/CN207293369U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112207020A (en) * | 2020-09-08 | 2021-01-12 | 广东顺德百涂通智能科技有限公司 | Pressure-bearing type washing screening machine |
| CN114394386A (en) * | 2022-01-19 | 2022-04-26 | 浙江迦南科技股份有限公司 | Novel dry method machine material conveying device |
| CN114394386B (en) * | 2022-01-19 | 2023-08-08 | 浙江迦南科技股份有限公司 | Novel dry process machine material conveying device |
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| GR01 | Patent grant |