CN102275721A - Rotating assembly and belt conveyer using same - Google Patents
Rotating assembly and belt conveyer using same Download PDFInfo
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- CN102275721A CN102275721A CN201010199891XA CN201010199891A CN102275721A CN 102275721 A CN102275721 A CN 102275721A CN 201010199891X A CN201010199891X A CN 201010199891XA CN 201010199891 A CN201010199891 A CN 201010199891A CN 102275721 A CN102275721 A CN 102275721A
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- rotary components
- pressure
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- center shaft
- housing
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Abstract
The invention discloses a rotating assembly which comprises a rotatable central shaft, a shell and a sealing air bag, wherein the shell is connected onto the central shaft and is provided with a cavity; and the sealing air bag is contained inside the cavity of the shell and is communicated with external atmosphere by a gas channel so that the pressure of the interior of the cavity is maintained to be basically equal to the atmospheric pressure. By means of the structure, the volume of the cavity of the shell can be changed, thereby the pressure of the interior of the cavity is approximately identical to the atmospheric pressure and is not affected by the change of air temperature. Due to the balance of the internal pressure, dust particles in environments cannot enter the interior of equipment, and therefore, wear debris cannot slide into a bearing, thereby the service life of the equipment is prolonged.
Description
Technical field
The present invention relates to band conveyor, more specifically, relate to a kind of rotary components that is used for band conveyor.
Background technology
As everyone knows, band conveyor often for example be used in mine, dig up mine or production industry such as building in.In such production process, band conveyor has to move in the environment of airborne dust usually.In order to prevent dust granule in the airborne dust environment to the wearing and tearing of the carrying roller of conveyer, the carrying roller of known conveyer has adopted the sealing cylinder housing, and to be provided with the hollow rotating shaft be the bearing assembly at center, is provided with outside seal simultaneously.This outside seal provides last stopping for dust granules such as duff, spoil, part building materials particles.
In on June 20th, 2006 disclosed russian patent RU2278069C1, in order to protect bearing assembly, sealing member adopts the flexible annular packet form of elasticity and with the aerated materials manufacturing with different densities.Described sealing member contains lubricant.
According to disclosed russian patent application RU2238901 on October 27th, 2003, be each carrying roller and the friction component on the protection band conveyor, need to fill the composite material of forming by smear metal antifriction self-lubricating material, plastic lubricant and solid lubricant.
In addition, a kind of rotary components that is applied to the idler for belt conveyer device was disclosed among the disclosed russian patent application RU2260553 on September 10th, 2004.Described rotary components has the sealing cylinder housing, is the bearing assembly and the annular chamber at center with the hollow rotating shaft that wherein said annular chamber is formed by the internal web of support roller device and the interval between the hollow shaft external webs.Bearing assembly is provided with outside seal, contains packing material and lubricating oil in the interval between seal ring and bearing, in case the dust granule in the stop ring border is invaded, wearing and tearing carrying roller in-to-in parts.
Yet, in above-mentioned these equipment, do not provide at present, for example the abrasion protection of microparticle completely of bearing carrying roller in-to-in parts.Fall into carrying roller when inner when pressure change (for example inside and outside generation difference of pressure in carrying roller chamber), the dust granule of the inner chamber of external ambient atmosphere pressure change, carrying roller, above-mentioned these equipment all can not provide actv. to solve and counte-rplan.
Summary of the invention
Given this, a purpose of invention is when the external and internal pressure of the roller devices such as carrying roller of for example band conveyor changes, the inside of the dust granule access to plant in the environment be can prevent, thereby the wearing and tearing of dust granule to parts (for example bearing etc.), the service life of extension fixture reduced.
Thus, the invention provides a kind of rotary components, comprising: rotatable center shaft; Be connected to the housing on the described center shaft, described housing has cavity; And pressure bladder, it is contained in the described cavity of described housing, and wherein said pressure bladder is connected with outside atmosphere by the gas passage, is substantially equal to bar pressure so that the pressure in the described cavity remains.
By this structure, when the pressure of the inside cavity of housing change and bar pressure between when producing difference of pressure, because the pressure bladder that is communicated with outside atmosphere can compress and expand under the bar pressure effect, be that volume changes, make that thereby can change shell cavity pressure inside and barometric pressure of the volume of cavity of housing is roughly the same, be not subjected to the influence of temperature Change.Because the balance of air pressure inside, the dust granule in the environment will be not can access arrangement inside, so abrasive dust will can not slide into bearing, thereby prolonged service life of equipment.
In addition, provide a kind of band conveyor also on the one hand according to of the present invention, it comprises belt and engages to move a plurality of rotating members of described belt with described belt that described rotating member is aforesaid rotary components.
Description of drawings
Fig. 1 illustrates the longitudinal sectional view according to the rotary components of the embodiment of the invention; And
Fig. 2 illustrates the transverse sectional view according to the rotary components of the embodiment of the invention.
The specific embodiment
Below be that those of ordinary skill in the art can understand structure of the present invention, advantage and effect easily by the content that is disclosed in following examples according to specific instantiation explanation the specific embodiment of the present invention.
The present invention also can be implemented or be used by other different instantiation, and the every details in this specification sheets also can be carried out various modifications and change based on different viewpoints and application under the spirit that does not deviate from creation of the present invention.
Moreover, below the graphic signal that is simplification graphic, and basic conception of the present invention only is described in a schematic way, so only show the assembly relevant in graphic but not component count, shape and size drafting when implementing according to reality with the present invention, kenel, quantity and the ratio of each assembly can be done random change during its actual enforcement, and its assembly layout form may be more complicated.
As illustrated in fig. 1 and 2, the rotary components 10 according to the embodiment of the invention comprises rotatable center shaft 4, is connected to housing 1 and pressure bladder 8 on the center shaft 4.Housing 1 has cavity 5, and pressure bladder 8 is contained in the cavity 5 of housing 1.Pressure bladder 8 is connected with outside atmosphere by gas passage 6, is substantially equal to bar pressure so that the pressure in the cavity 5 remains.
Described gas passage 6 comprises centre hole 6a and the branched hole 6b that is arranged in the center shaft 4 and is connected with outside atmosphere.The end of branched hole 6b is connected with centre hole 6a, and its other end is connected with pressure bladder 8.Described gas passage 6 comprises connection pipe 6c alternatively.The end of described connection pipe 6c is connected with the described other end of branched hole 6b, and the other end of described connection pipe 6c is connected with pressure bladder 8.
Described center shaft 4 supports with rotatable by bearing 2.Housing 1 is respectively arranged with recess 7 along the two ends of described center shaft 4.Described bearing 2 is contained in respectively among the described recess 7.Described rotary components 10 also comprises the seal ring 3 that is arranged on place, described center shaft 4 two ends, is used for sealing described bearing 2 so that it is not exposed to outside atmosphere.In one example, described seal ring 3 can adopt the form of air retaining oil packing circle.Yet, one of ordinary skill in the art will appreciate that, the invention is not restricted to this, can use any known suitable seal circle in this area.
In an embodiment of the present invention, described rotary components 10 also comprises perforated casing 9 alternatively.Described perforated casing 9 is arranged in the described cavity 5 of housing 1, to surround pressure bladder 8 and connection pipe 6c, pressure bladder 8 and connection pipe 6c is played a protective role.Perforated casing 9 is fixedly installed on the described center shaft 4, to strengthen the intensity of center shaft 4.
Below with the be applied as example of rotary components of the present invention in the carrying roller of band conveyor operation according to the rotary components of the embodiment of the invention is described.
Open band conveyor, housing 1 begins rotation under the effect of center shaft 4.Through rotation, the internal temperature of the cavity 5 of housing 1 raises, and makes cavity 5 pressure inside increase thus.Pressure bladder 8 is communicated with atmosphere by gas passage 6, and therefore, the pressure in the pressure bladder 8 is identical with bar pressure.Along with cavity 5 pressure inside increase, between inside and outside the pressure bladder 8, produce negative pressure differential.Thus, pressure bladder 8 is compressed, gas in the pressure bladder 8 is discharged in the environment by gas passage 6, make pressure bladder 8 smaller volume, the spatial accommodation of cavity 5 increases, thereby the internal pressure of the cavity 5 of housing 1 reduces, and is roughly identical with bar pressure up to the internal pressure of the cavity 5 of housing 1.
After closing band conveyor, rotary components 10 stops.The internal temperature of the cavity 5 of housing 1 descends, and makes the internal pressure of cavity 5 reduce.So, produce positive pressure difference between inside and outside the pressure bladder 8, atmospheric gas makes pressure bladder 8 expand by in the 6 indentation sealing air bags 8 of gas passage, and the spatial accommodation of the cavity 5 of housing 1 reduces.Like this, the internal pressure of the cavity 5 of housing 1 increases, and is roughly identical with bar pressure up to the internal pressure of cavity 5.
By above structure, the internal pressure of the cavity 5 of housing 1 remains with bar pressure roughly the same, make that the dust granule in the environment can be owing to housing 1 difference of pressure between inside and outside not enter rotary components inside, in the hope of reducing parts depreciation, extension fixture service life.
More than with the be applied as example of rotary components on the carrying roller of band conveyor the present invention has been described.For example, in one embodiment of the invention, provide a kind of band conveyor, it comprises belt and engages to move a plurality of rotating members of described belt with described belt.Described rotating member is aforesaid rotary components.Yet, one of ordinary skill in the art will appreciate that the needs that rotary components of the present invention also can be applied to other prevent the roller device that the dust granule in the environment enters.
The explanation that the embodiment of the invention described above is only exemplary principle of the present invention and effect thereof, but not be used to limit the present invention, know and it will be understood by those skilled in the art that, under situation without departing from the spirit and scope of the present invention, all within the scope of the invention to any changes and improvements that the present invention did.The scope of the present invention, should as the application claim defined is as the criterion.
Claims (10)
1. rotary components comprises:
Rotatable center shaft;
Be connected to the housing on the described center shaft, described housing has cavity; And
Pressure bladder, it is contained in the described cavity of described housing, and wherein said pressure bladder is connected with outside atmosphere by the gas passage, is substantially equal to bar pressure so that the pressure in the described cavity remains.
2. rotary components according to claim 1 is characterized in that, described gas passage comprises:
Be arranged at the centre hole that is connected with outside atmosphere in the described center shaft; And
Branched hole, the one end is connected with described centre hole, and its other end is connected with described pressure bladder.
3. rotary components according to claim 2 is characterized in that, described gas passage also comprises:
Connection pipe, the one end is connected with the described other end of branched hole, and its other end is connected with described pressure bladder.
4. rotary components according to claim 1 is characterized in that:
Described center shaft supports with rotatable by bearing.
5. rotary components according to claim 4 is characterized in that:
Described housing is respectively arranged with recess along the two ends of described center shaft, and described bearing is contained in respectively among the described recess.
6. rotary components according to claim 5 is characterized in that, also comprises: be arranged on the seal ring at place, described center shaft two ends, be used for sealing described bearing so that it is not exposed to outside atmosphere.
7. rotary components according to claim 1 is characterized in that, also comprises:
Perforated casing, described perforated casing are arranged in the described cavity of described housing, to surround pressure bladder
8. rotary components according to claim 3 is characterized in that, also comprises:
Perforated casing, described perforated casing are arranged at and surround connection pipe and pressure bladder.
9. according to claim 7 or 8 described rotary components, it is characterized in that:
Described perforated casing is connected on the described center shaft, to strengthen the intensity of described center shaft.
10. band conveyor, it comprises belt and engages to move a plurality of rotating members of described belt with described belt that described rotating member is as each described rotary components among the claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010199891XA CN102275721A (en) | 2010-06-13 | 2010-06-13 | Rotating assembly and belt conveyer using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010199891XA CN102275721A (en) | 2010-06-13 | 2010-06-13 | Rotating assembly and belt conveyer using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102275721A true CN102275721A (en) | 2011-12-14 |
Family
ID=45101547
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010199891XA Pending CN102275721A (en) | 2010-06-13 | 2010-06-13 | Rotating assembly and belt conveyer using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102275721A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4039229A (en) * | 1975-08-06 | 1977-08-02 | Gutehoffnungshutte Sterkrade Aktiengesellschaft | Roller bearing construction |
| US4903820A (en) * | 1986-06-03 | 1990-02-27 | Fyfe Edward R | Idler rollers for belt conveyors |
| CN101513960A (en) * | 2008-02-22 | 2009-08-26 | 张政 | Carrier roller for belt conveyor |
| RU2388679C1 (en) * | 2008-12-19 | 2010-05-10 | Дмитрий Борисович Никишичев | Unit of rotation |
-
2010
- 2010-06-13 CN CN201010199891XA patent/CN102275721A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4039229A (en) * | 1975-08-06 | 1977-08-02 | Gutehoffnungshutte Sterkrade Aktiengesellschaft | Roller bearing construction |
| US4903820A (en) * | 1986-06-03 | 1990-02-27 | Fyfe Edward R | Idler rollers for belt conveyors |
| CN101513960A (en) * | 2008-02-22 | 2009-08-26 | 张政 | Carrier roller for belt conveyor |
| RU2388679C1 (en) * | 2008-12-19 | 2010-05-10 | Дмитрий Борисович Никишичев | Unit of rotation |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20111214 |
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| WD01 | Invention patent application deemed withdrawn after publication |