CN208331008U - A kind of bearing block dustproof construction - Google Patents
A kind of bearing block dustproof construction Download PDFInfo
- Publication number
- CN208331008U CN208331008U CN201820602778.3U CN201820602778U CN208331008U CN 208331008 U CN208331008 U CN 208331008U CN 201820602778 U CN201820602778 U CN 201820602778U CN 208331008 U CN208331008 U CN 208331008U
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- China
- Prior art keywords
- bearing block
- bearing
- labyrinth bush
- venthole
- labyrinth
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Abstract
The utility model proposes a kind of bearing block dustproof constructions, including rotation axis, axial set, labyrinth bush, gland, bearing block, outside framework oil seal etc..Axial set is mounted on the shaft shoulder on the inside of bearing, axial set is by the pressing plate of shaft end, screw and passes through bearing inner race, to push down the end of labyrinth bush and rotation axis and be kept fixed, bearing block is equipped with rotation slot corresponding with labyrinth bush, and the grafting that cooperates, venthole is provided on the bearing block, one end of venthole is connected with gas nozzle, the other end is communicated in the gap of groove profile connection of labyrinth bush, high pressure draught is brought pressure to bear at the maze trough of labyrinth bush by the venthole, makes to form zone of positive pressure in the cavity of maze trough.The pressure energy is barred from dust outside maze trough, so as to be effectively protected bearing block, will not make to occur into grey phenomenon.
Description
Technical field
The utility model relates to one kind may be implemented to prevent the bearing arrangement into dust on various devices, specifically a kind of
Bearing block dustproof construction.
Background technique
The rotation shaft structure of material vertical transport equipment is needed for the ease of improving the sealing of equipment by rotation axis
Bearing block be placed in apparatus casing.Due to being the environment dusty in material transportation process in shell, material heap is often had
Sealing at product, axis and bearing block relative rotation can not well solve always sealing problem, regular dust aggregation, axis occur
It holds seat and causes the thing of lubrication failure also frequent occurrence, to bring many hidden danger for the operation of elevator into ash.And it considers
Generally can all there be the gas source of compressed air in factory, and then propose a kind of new departure, using compressed air to bearing block and axis phase
Dust is barred from except bearing block by the air pressure formation air-flow for applying certain at rotation, serves and is effectively protected.
Utility model content
The purpose of the utility model is to overcome the above deficiencies in the existing technologies, and provide one kind and pass through high pressure gas
Inside flow-through bearings seat, and then prevent dust from entering the structure of bearing block.
The technical scheme in the invention for solving the above technical problem is: being positioned at rotation by axial pressing plate and its screw
Axial set and labyrinth bush are simultaneously pushed down and are held out against simultaneously by the inner ring of bearing by the shaft end of axis, guarantee rotation axis and axial set, fan
It is not rotated mutually between the set of palace；The inner ring of rolling bearing is fixed on the rotating shaft, and the outer ring of rolling bearing is installed on bearing block
In hole, skeleton oil seal is used between axial set and bearing block, forms rotation slot corresponding with the groove profile of labyrinth bush on bearing block,
And the grafting that cooperates, venthole is provided on the bearing block, and one end of venthole is connected with gas nozzle, and the other end is communicated to labyrinth
In the gap of the groove profile connection of set.High pressure draught is brought pressure to bear at the maze trough of labyrinth bush by the venthole on end cap, is made
Zone of positive pressure is formed in the cavity of maze trough.The pressure energy is barred from dust outside maze trough, so as to be effectively protected bearing
Seat will not make to occur into grey phenomenon.The structure of maze trough is stacked layer by layer, can form the metastable air for maintaining air pressure
Area can maintain the relatively stable of air pressure.
Further, the outer end face of the bearing block, the end relative to rotation axis are provided with protection end cap, protect end cap
Edge and bearing block be tightly connected, push down the outer ring of bearing simultaneously.Protection end lid plays the role of sealing axis body, in rotation axis
When operation, the environment of stable holding air pressure is provided, axis body is enable to run in the environment medium or low resistance power of high pressure gas.
Further, the protection end, which covers, is provided with screw hole, and one end of screw hole is equipped with the close switch of plug other end installation.
Further, maze trough is formed on the labyrinth bush, labyrinth bush is that the section of annular setting is the groove body of rectangle
Structure, bearing block corresponding with labyrinth bush end face also form be correspondingly arranged and mutually noose maze trough.Rectangular section
Groove body interconnection property is good, it is not easy to be detached from, improve stability.
Further, the venthole is extended by the inside side end face of end face outside of bearing block, and passes through protection end cap,
Gas nozzle is molded over protection end and covers.The main body of venthole is bypass structure, can guarantee air-flow smoothness, stable gas pressure.
The utility model compared with prior art, has the following advantages that and effect: venthole, high pressure gas are opened up on bearing block
Stream is brought pressure to bear at the maze trough of labyrinth bush by the venthole, is formed the air-flow of certain pressure, is made in the cavity of maze trough
Form zone of positive pressure.The pressure energy is barred from dust outside maze trough, so as to be effectively protected bearing block, will not make existing into ash
As occurring.The structure of maze trough is stacked layer by layer, can be formed the metastable air zone for maintaining air pressure, can be maintained the phase of air pressure
To stabilization.
Detailed description of the invention
Fig. 1 is the schematic diagram of the section structure of the utility model.
In figure: 1, rotation axis, 2, bearing block, 3, outside framework oil seal, 4, labyrinth bush, 5, venthole, 6, axial set, 7, protection end
Lid, 8, mounting hole, 9, shaft end pressure plate, 10, bearing.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawing and by embodiment, and following embodiment is pair
The explanation of the utility model and the utility model is not limited to following embodiment.
A kind of bearing block dustproof construction is positioned at the shaft end of rotation axis 1 by axial pressing plate 9 and its screw and by bearing 10
Inner ring axial set 6 and labyrinth bush 4 are pushed down and are held out against simultaneously, guarantee between rotation axis 1 and axial set 6, labyrinth bush 4 mutually not
Rotation；The inner ring of rolling bearing 10 is fixed in rotation axis 1, and the outer ring of rolling bearing is installed on the inner hole of bearing block 2, axial to cover
It is sealed between 6 and bearing block 2 with outside framework oil seal 3, rotation slot corresponding with the groove profile of labyrinth bush 4 is formed on bearing block 2, and mutually
Cooperate grafting, is provided with venthole 5 on the bearing block 2, one end of venthole 5 is connected with gas nozzle, and the other end is communicated to labyrinth bush 4
Groove profile connection gap in.
The outer end face of the bearing block 2, the end relative to rotation axis 1 are provided with protection end cap 7, protect the side of end cap 7
Edge and the sealed connection of bearing block 2, the outer ring for pushing down bearing 10 simultaneously.
Screw hole 8 is provided on the protection end cap 7, one end of screw hole 8 is equipped with the close switch of plug other end installation.
Maze trough is formed on the labyrinth bush 4, maze trough is that the section of annular setting is the trough body structure of rectangle, with fan
Palace cover 4 corresponding 2 end faces of bearing block also form be correspondingly arranged and mutually noose maze trough.
The venthole 5 is extended by the inside side end face of end face outside of bearing block 2, and passes through protection end cap 7, gas nozzle at
Type is on protection end cap 7.
Claims (5)
1. a kind of bearing block dustproof construction, it is characterised in that: be positioned at the axis of rotation axis (1) by axial pressing plate (9) and its screw
It holds and passes through the inner ring of bearing (10) for axial set (6) and labyrinth bush (4) while pushing down and holding out against, guarantee rotation axis (1) and axis
To not rotated mutually between set (6), labyrinth bush (4)；The inner ring of rolling bearing (10) is fixed on rotation axis (1), rolling bearing
Outer ring be installed in the hole of bearing block (2), it is axial to cover between (6) and bearing block (2) with outside framework oil seal (3) sealing, bearing block (2)
On form rotation slot corresponding with the groove profile of labyrinth bush (4), and the grafting that cooperates, be provided with ventilation on the bearing block (2)
Hole (5), one end of venthole (5) are connected with gas nozzle, and the other end is communicated in the gap of groove profile connection of labyrinth bush (4).
2. bearing block dustproof construction according to claim 1, it is characterised in that: the outer end face of the bearing block (2), relatively
The end of rotation axis (1) is provided with protection end cap (7), the edge of end cap (7) and bearing block (2) is protected to be tightly connected, simultaneously
Push down the outer ring of bearing (10).
3. bearing block dustproof construction according to claim 2, it is characterised in that: be provided with screw hole on the protection end cap (7)
(8), one end of screw hole (8) is equipped with the close switch of plug other end installation.
4. bearing block dustproof construction according to claim 3, it is characterised in that: form labyrinth on the labyrinth bush (4)
Slot, maze trough be annular setting section be rectangle trough body structure, bearing block (2) end face corresponding with labyrinth bush (4) also at
Type have be correspondingly arranged and mutually noose maze trough.
5. bearing block dustproof construction according to claim 4, it is characterised in that: the venthole (5) is by bearing block (2)
The inside side end face of end face outside extends, and passes through protection end cap (7), and gas nozzle is molded in protection end cap (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820602778.3U CN208331008U (en) | 2018-04-25 | 2018-04-25 | A kind of bearing block dustproof construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820602778.3U CN208331008U (en) | 2018-04-25 | 2018-04-25 | A kind of bearing block dustproof construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208331008U true CN208331008U (en) | 2019-01-04 |
Family
ID=64778331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820602778.3U Active CN208331008U (en) | 2018-04-25 | 2018-04-25 | A kind of bearing block dustproof construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208331008U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595257A (en) * | 2019-01-15 | 2019-04-09 | 中国石油大学(华东) | Combined high-temperature high-pressure high-speed sealing bearing |
| CN109826870A (en) * | 2019-03-15 | 2019-05-31 | 宣城市兴鸿生物能源有限公司 | A kind of material extrusion wheel component with dustproof construction |
| CN114251374A (en) * | 2021-12-31 | 2022-03-29 | 昆山顺之晟精密机械有限公司 | Bearing seat for loop wire cutting |
-
2018
- 2018-04-25 CN CN201820602778.3U patent/CN208331008U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595257A (en) * | 2019-01-15 | 2019-04-09 | 中国石油大学(华东) | Combined high-temperature high-pressure high-speed sealing bearing |
| CN109595257B (en) * | 2019-01-15 | 2024-03-12 | 中国石油大学(华东) | Combined high-temperature high-pressure high-speed sealing bearing |
| CN109826870A (en) * | 2019-03-15 | 2019-05-31 | 宣城市兴鸿生物能源有限公司 | A kind of material extrusion wheel component with dustproof construction |
| CN114251374A (en) * | 2021-12-31 | 2022-03-29 | 昆山顺之晟精密机械有限公司 | Bearing seat for loop wire cutting |
| CN114251374B (en) * | 2021-12-31 | 2024-06-07 | 昆山顺之晟精密机械有限公司 | Annular wire cutting bearing seat |
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