CN213511747U - Bearing seal structure and powder concentrator - Google Patents
Bearing seal structure and powder concentrator Download PDFInfo
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- CN213511747U CN213511747U CN202022523108.2U CN202022523108U CN213511747U CN 213511747 U CN213511747 U CN 213511747U CN 202022523108 U CN202022523108 U CN 202022523108U CN 213511747 U CN213511747 U CN 213511747U
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Abstract
The application provides a bearing seal structure and selection powder machine relates to cement manufacture technical field. The bearing sealing structure comprises a framework oil seal, a bearing and a rotating shaft, wherein the framework oil seal is provided with a first through hole; the mechanical seal is provided with a second through hole, and the framework oil seal is arranged in the second through hole; the framework oil seal and the bearing are sequentially arranged on the circumferential side face of the rotating shaft along the axial direction of the rotating shaft, a third through hole is formed in the bearing, and part of the rotating shaft is arranged in the third through hole; and the fixing piece is abutted against one side of the framework oil seal facing the bearing and is connected to the mechanical seal. This application technical scheme can avoid the skeleton oil blanket to drop.
Description
Technical Field
The application relates to the technical field of cement production, in particular to a bearing sealing structure and a powder concentrator.
Background
In daily production, the powder concentrator lower bearing department moves under high temperature, high dust, the big just inclosed environment of vibration, along with the wearing and tearing of skeleton oil blanket and the vibration that grinds in, the skeleton oil blanket can drop thereupon, leads to sealed inefficacy, and sealed effect is direct to be influenced lubricating oil quality and the life of lower bearing, increases cost of maintenance, consequently, if avoid the skeleton oil blanket to drop the technical problem that technical staff in the field need solve urgently.
SUMMERY OF THE UTILITY MODEL
The purpose of the embodiment of the application is to provide a bearing seal structure and powder concentrator to solve the problem that the skeleton oil blanket drops.
In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:
this application first aspect provides a bearing seal structure, and this bearing seal structure includes: the framework oil seal is provided with a first through hole, and part of the rotating shaft is arranged in the first through hole;
the mechanical seal is provided with a second through hole, and the framework oil seal is arranged in the second through hole;
the framework oil seal and the bearing are sequentially arranged on the circumferential side face of the rotating shaft along the axial direction of the rotating shaft, a third through hole is formed in the bearing, and part of the rotating shaft is arranged in the third through hole;
and the fixing piece is abutted against one side of the framework oil seal facing the bearing and is connected to the mechanical seal.
In some modified embodiments of the first aspect of the present application, the fixing member is provided with a fourth through hole, and a part of the rotation shaft is provided in the fourth through hole.
Specifically, a first gap is formed between one side of the fixing piece facing the circumferential side face of the rotating shaft and the rotating shaft.
Specifically, a second gap is formed between one side of the fixing piece facing the bearing and the bearing.
Specifically, the mounting includes first region and second region, first region set up in the skeleton oil blanket orientation one side of bearing, and with the skeleton oil blanket is connected, the second region set up in one side of mechanical seal orientation bearing, and with mechanical seal is connected.
Specifically, the mechanical seal comprises a first side surface and a second side surface which are opposite, the first side surface faces the bearing, the second side surface is provided with a plurality of annular seal teeth, and the annular seal teeth are used for being sequentially arranged on a plurality of annular grooves on the seal end surface of the rotating shaft.
Specifically, the method further comprises the following steps: the bearing seat is provided with a fifth through hole and a sixth through hole which are sequentially arranged along the direction of the framework oil seal pointing to the bearing, the aperture of the fifth through hole is smaller than that of the sixth through hole, the bearing is arranged in the fifth through hole, and one end, far away from the sixth through hole, of the bearing seat is connected with the mechanical seal;
and the end cover is used for sealing the sixth through hole.
Specifically, be formed with the temperature measurement chamber on the bearing frame, be provided with temperature sensor in the temperature measurement chamber, temperature sensor is used for detecting the bearing temperature.
Specifically, the method further comprises the following steps: the spacing sleeve is provided with a seventh through hole, part of the rotating shaft is arranged in the seventh through hole, and the spacing sleeve is arranged in the first through hole of the framework oil seal;
the first gap is formed between one side of the fixing piece facing the rotating shaft and the spacing sleeve.
This application second aspect provides a selection powder machine, includes: a bearing seal structure according to any one of the preceding claims.
Compared with the prior art, the bearing sealing structure provided by the first aspect of the application is characterized in that the fixing piece is arranged, so that the fixing piece is fixed on the mechanical seal, the fixing piece can be abutted to the framework oil seal, and the framework oil seal can be prevented from falling off.
The second aspect of the present application has the same technical effects as the bearing sealing structure provided by the first aspect, and details are not described herein.
Drawings
The above and other objects, features and advantages of exemplary embodiments of the present application will become readily apparent from the following detailed description read in conjunction with the accompanying drawings. Several embodiments of the present application are illustrated by way of example and not by way of limitation in the figures of the accompanying drawings and in which like reference numerals refer to similar or corresponding parts and in which:
FIG. 1 schematically illustrates a structural schematic diagram of a bearing seal structure provided by an embodiment of the present application;
FIG. 2 schematically illustrates another structural schematic of a bearing seal structure provided by an embodiment of the present application;
the reference numbers illustrate:
a main body section 11, a sealing section 12, a sealing end face 13, an annular groove 14,
the framework oil seal 2 is arranged on the upper portion of the frame,
the mechanical seal 3, the first flank 32, the second flank 33, the annular sealing tooth 34,
the bearing 4, the outer sleeve 41, the inner sleeve 42,
the fixing member 5, the first gap 61, the second gap 62,
a bearing seat 7, a temperature measuring cavity 71, a sealing cover 72, a sixth through hole 73,
the first end cap 81, the second end cap 82,
a spacer 9.
Detailed Description
Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.
It is to be noted that, unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which this application belongs.
A first aspect of the present application provides a bearing seal structure, as shown in fig. 1 and 2, including: the framework oil seal 2 is provided with a first through hole, and part of the rotating shaft is arranged in the first through hole; the mechanical seal 3 is provided with a second through hole, and the framework oil seal 2 is arranged in the second through hole; the framework oil seal 2 and the bearing 4 are sequentially arranged on the circumferential side face of the rotating shaft along the axial direction of the rotating shaft, a third through hole is formed in the bearing 4, and part of the rotating shaft is arranged in the third through hole; the bearing seal structure further includes: and the fixing piece 5 is abutted against one side of the framework oil seal 2 facing the bearing 4 and is connected with the mechanical seal 3.
The bearing sealing structure provided by the embodiment can be applied to the powder concentrator, wherein the bearing sealing structure can be arranged at the end part of a rotating shaft of the powder concentrator, the mechanical seal 3 and the framework oil seal 2 are sequentially sleeved on the circumferential side surface of the rotating shaft along the radial direction of the rotating shaft, and the distance between the framework oil seal 2 and the end part of the rotating shaft is greater than the distance between the bearing 4 and the end part of the rotating shaft. Wherein, skeleton oil blanket 2, mechanical seal 3 and bearing frame 7, first end cover 81 and second end cover 82 can form airtight space to this dust that can avoid the selection powder machine enters into bearing 4, produces the influence to the lubricating oil quality in the bearing 4. Wherein, the framework oil seal 2 is arranged between the mechanical seal 3 and the rotating shaft in an interference fit manner, and the framework oil seal 2 and the mechanical seal 3 are common structures in the prior art, and are not described in detail here. The bearing 4 and the framework oil seal 2 are sequentially arranged on the rotating shaft along the axial direction of the rotating shaft. Wherein, in prior art, skeleton oil blanket 2 is formed with the cavity region towards one side of bearing 4 and between bearing 4, in the selection powder machine use, because the wearing and tearing of skeleton oil blanket 2 and the vibration that grinds in, lead to skeleton oil blanket 2 can drop with mechanical seal 3, and then make sealed inefficacy, lead to the dust in the selection powder machine to enter into bearing 4, cause harmful effects to the lubricating oil quality in the bearing 4, influence the life of bearing 4, increase cost of maintenance. In this application, set up mounting 5 in skeleton oil blanket 2 towards one side of bearing 4, mounting 5 can connect in mechanical seal 3, and then fixes mounting 5, and simultaneously, mounting 5 can also be inconsistent with skeleton oil blanket 2 to this skeleton oil blanket 2 is fixed between rotation axis and mechanical seal 3. In addition, the bearing 4 comprises an inner sleeve 42, an outer sleeve 41 and rolling bodies, wherein the inner sleeve 42 is fixed on the rotating shaft, the outer sleeve 41 is fixed on the bearing seat 7, when the powder concentrator works, the rotating shaft rotates to drive the spacing sleeve 9 fixed on the rotating shaft and the inner sleeve 42 of the bearing 4 to rotate, the outer sleeve 41, the bearing seat 7, the mechanical seal 3, the framework oil seal 2 and the like do not rotate, and the fixing piece 5 is connected with the mechanical seal 3, so that the fixing piece 5 does not rotate along with the rotating shaft.
In some modified embodiments of the first aspect of the present application, as shown in fig. 2, the fixing member 5 is provided with a fourth through hole, and a part of the rotating shaft is provided in the fourth through hole.
Wherein, mounting 5 is the loop configuration, consequently can guarantee the area of contact between mounting 5 and the skeleton oil blanket 2, and area of contact between the two is big more, and skeleton oil blanket 2 installation reliability is big more. Besides, the fixing member 5 may include a plurality of fixing portions each having a plate shape, the plurality of fixing portions being arranged around the rotation axis, and each of the fixing portions may be connected to the mechanical seal 3 by screws. The fixing member 5 may be made of a stainless steel material, and is not particularly limited herein.
Specifically, as shown in fig. 2, a first gap 61 is formed between the side of the fixing member 5 facing the circumferential side surface of the rotating shaft and the rotating shaft.
Wherein, through set up first clearance 61 between mounting 5 and rotation axis, can avoid contacting between mounting 5 and the rotation axis, prevent to produce wearing and tearing between the two, cause the damage to the rotation axis.
Specifically, as shown in fig. 2, a second gap 62 is formed between a side of the fixing member 5 facing the bearing 4 and the bearing 4.
The second gap 62 is formed between the fixing element 5 and the bearing 4, so that the contact between the fixing element 5 and the bearing 4 can be avoided, and since the inner sleeve 42 of the bearing 4 rotates along with the rotating shaft and the relative motion is generated between the fixing element 5 and the inner sleeve 42, the embodiment can avoid the contact between the inner sleeve 42 and the fixing element 5, and avoid the abrasion between the two, which affects the service lives of the two.
Specifically, as shown in fig. 2, the fixing member 5 includes a first region and a second region, the first region is disposed on a side of the framework oil seal 2 facing the bearing 4 and is connected to the framework oil seal 2, and the second region is disposed on a side of the mechanical seal 3 facing the bearing 4 and is connected to the mechanical seal 3.
Wherein, first region and the regional interconnect of second, wherein, first region corresponds to the setting of skeleton oil blanket 2, in order to guarantee the fixed effect of mounting 5 to skeleton oil blanket 2, can make first region and skeleton oil blanket 2 be connected through the screw, and the second region corresponds to the setting of mechanical seal 3, and the second region is connected through the screw with the one side of mechanical seal 3 orientation bearing 4. In addition, as shown in fig. 2, one side of the mechanical seal 3 facing the bearing 4 includes a first connecting surface, a second connecting surface and a third connecting surface, which are connected in sequence, wherein the first connecting surface is flush with one side of the framework oil seal 2 facing the bearing 4, a predetermined included angle is formed between the second connecting surface and the first connecting surface, the third connecting surface extends towards the bearing 4, the third connecting surface extends to the outer casing 41, and the framework oil seal 2, the first connecting surface, the second connecting surface and the third connecting surface form the above-mentioned cavity region. Wherein, the first area of the fixing piece 5 covers the part of the framework oil seal 2 facing to the bearing 4, and the second area covers the first connecting surface. Or that the fixing element 5 also comprises a third area which is connected to the second area and which covers the second connection area.
Specifically, as shown in fig. 1 and 2, the mechanical seal 3 includes a first side surface 32 and a second side surface 33 which are opposite to each other, the first side surface 32 faces the bearing 4, and the second side surface 33 is formed with a plurality of annular seal teeth 34, and the annular seal teeth 34 are used for being sequentially arranged on a plurality of annular grooves 14 on the seal end surface 13 of the rotating shaft.
The rotating shaft comprises a main body section 11 and a sealing section 12, the outer diameter of the sealing section 12 is smaller than that of the main body section 11, the rotating shaft further comprises a sealing end face 13, the sealing end face 13 is used for connecting the circumferential side face of the main body section 11 and the circumferential side face of the sealing section 12, a plurality of annular grooves 14 are formed in the sealing end face 13, and the annular grooves 14 correspond to the annular sealing teeth 34 one to one and are used for accommodating the annular sealing teeth 34. As the rotating shaft rotates, the annular seal teeth 34 rotate within the annular groove 14. In this embodiment, the mechanical seal 3 is sealed by a labyrinth seal.
Specifically, as shown in fig. 1 and 2, the method further includes: the bearing seat 7 is provided with a fifth through hole and a sixth through hole 73 which are sequentially arranged along the direction of the framework oil seal 2 pointing to the bearing 4, the aperture of the fifth through hole is smaller than that of the sixth through hole 73, the bearing 4 is arranged in the fifth through hole, and one end, far away from the sixth through hole 73, of the bearing seat 7 is connected with the mechanical seal 3; and an end cap for sealing the sixth through hole 73.
The bearing seat 7 comprises a first section and a second section which are connected in sequence, wherein a fifth through hole is formed in the first section, a sixth through hole 73 is formed in the second section, and the fifth through hole is communicated with the sixth through hole 73. Wherein, because the aperture of sixth through-hole 73 is less than the aperture of fifth through-hole, consequently, be formed with the joint face that is used for connecting fifth through-hole inner wall and sixth through-hole 73 inner wall between first section and the second section, the overcoat 41 of bearing 4 can be located in the fifth through-hole and the joint is in the joint face, and sixth through-hole 73 reduces along the directional bearing 4's of skeleton oil blanket 2 direction aperture gradually. Wherein, the one end that the second section was kept away from to first section is the one end that sixth through-hole 73 was kept away from to bearing frame 7, and it can dock with mechanical seal 3, specifically, mechanical seal 3 is first side 32 towards one side of bearing 4, and one side that the rotation axis was kept away from to first side 32 is formed with annular joint space, and the one end joint that the second section was kept away from to first section is in annular joint space to this guarantees the reliability of being connected between mechanical seal and the bearing frame. In addition, the number of the end caps may be two, and the end caps are a first end cap 81 and a second end cap 82, respectively, wherein the first end cap 81 is disposed on the end surface of the sealing section 12 of the rotating shaft away from the main body section 11, the first end cap 81 is fixed on the end surface by a bolt, and the first end cap 81 partially covers the end surface of the sealing section 12 and partially covers the inner sleeve 42 of the bearing 4. The second end cap 82 is arranged on the end face of the second section facing away from the first section, and covers the sixth through hole 73, wherein the orthographic projection of the sixth through hole 73 on the second end cap 82 is completely arranged in the area of the second end cap 82. The second end cover 82 is connected with the bearing seat 7 through bolts.
Specifically, as shown in fig. 1 and 2, a temperature measuring cavity 71 is formed on the bearing seat 7, and a temperature sensor is arranged in the temperature measuring cavity 71 and used for detecting the temperature of the bearing 4.
Wherein, temperature sensor can be resistance-type temperature sensor, and the temperature of bearing 4 should not be too high, through temperature sensor real-time detection bearing 4's temperature, when bearing 4 temperature exceedes the default, can take the means of cooling to the bearing 4 cooling. The temperature measurement cavity 71 should be a sealed cavity, specifically, a mounting opening is formed in the temperature measurement cavity 71, the mounting opening is formed in a circumferential side face, away from the bearing 4, of the bearing seat 7, the temperature sensor is mounted in the temperature measurement cavity 71 through the mounting opening, a sealing cover 72 is arranged on the mounting opening to seal the temperature measurement cavity 71, wherein an orthographic projection of the mounting opening on the sealing cover 72 is completely placed in an area where the sealing cover 72 is located, and the sealing cover 72 is connected with the bearing seat 7 through bolts.
Specifically, as shown in fig. 1 and 2, the method further includes: the spacing sleeve 9 is provided with a seventh through hole, part of the rotating shaft is arranged in the seventh through hole, and the spacing sleeve 9 is arranged in the first through hole of the framework oil seal 2; the first gap 61 is formed between the side of the fixing element 5 facing the axis of rotation and the spacer 9.
Wherein, spacer sleeve 9 can establish on the rotation axis through the seventh through-hole cover, and the part of spacer sleeve 9 sets up in skeleton oil blanket 2, and spacer sleeve 9 one end is contradicted in the sealing end face, and the other end is contradicted in bearing 4, and wherein, spacer sleeve 9 is the device commonly used among the prior art, does not describe here in detail.
The second aspect of the present application provides a powder concentrator, which includes the bearing seal structure provided in any one of the above embodiments, and therefore this embodiment has all the beneficial effects of the bearing seal structure provided in any one of the above embodiments, which are not described herein again. In addition, the powder concentrator also comprises a coarse powder hopper and a rotating shaft, one end of the rotating shaft extends into the coarse powder hopper, the bearing sealing structure is arranged at the end part of the rotating shaft extending into the coarse powder hopper, at least the sealing section extends into the coarse powder hopper, the spacing sleeve 9 and the bearing 4 are sequentially arranged on the circumferential side surface of the sealing section along the direction of the main body section pointing to the sealing section, in addition, the rotating shaft can drive the fan to rotate, and the powder concentrator provided by the embodiment can be a leishi mill powder concentrator.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (10)
1. A bearing seal structure, comprising:
the framework oil seal is provided with a first through hole, and part of the rotating shaft is arranged in the first through hole;
the mechanical seal is provided with a second through hole, and the framework oil seal is arranged in the second through hole;
the framework oil seal and the bearing are sequentially arranged on the circumferential side face of the rotating shaft along the axial direction of the rotating shaft, a third through hole is formed in the bearing, and part of the rotating shaft is arranged in the third through hole;
and the fixing piece is abutted against one side of the framework oil seal facing the bearing and is connected to the mechanical seal.
2. The bearing seal structure according to claim 1,
the fixing piece is provided with a fourth through hole, and part of the rotating shaft is arranged in the fourth through hole.
3. The bearing seal structure according to claim 1,
a first gap is formed between one side of the fixing piece facing the circumferential side face of the rotating shaft and the rotating shaft.
4. The bearing seal structure according to claim 1,
a second gap is formed between one side, facing the bearing, of the fixing piece and the bearing.
5. The bearing seal structure according to claim 1,
the mounting includes first region and second region, first region set up in the skeleton oil blanket orientation one side of bearing, and with the skeleton oil blanket is connected, the second region set up in one side of mechanical seal orientation bearing, and with mechanical seal is connected.
6. The bearing seal structure according to claim 1,
the mechanical seal comprises a first side face and a second side face which are opposite, the first side face faces the bearing, a plurality of annular sealing teeth are formed on the second side face, and the annular sealing teeth are used for being sequentially arranged on a plurality of annular grooves on the sealing end face of the rotating shaft.
7. The bearing seal structure according to claim 6,
further comprising: the bearing seat is provided with a fifth through hole and a sixth through hole which are sequentially arranged along the direction of the framework oil seal pointing to the bearing, the aperture of the fifth through hole is smaller than that of the sixth through hole, the bearing is arranged in the fifth through hole, and one end, far away from the sixth through hole, of the bearing seat is connected with the mechanical seal;
and the end cover is used for sealing the sixth through hole.
8. The bearing seal structure according to claim 7,
a temperature measuring cavity is formed in the bearing seat, a temperature sensor is arranged in the temperature measuring cavity, and the temperature sensor is used for detecting the temperature of the bearing.
9. The bearing seal structure according to claim 3,
further comprising: the spacing sleeve is provided with a seventh through hole, part of the rotating shaft is arranged in the seventh through hole, and the spacing sleeve is arranged in the first through hole of the framework oil seal;
the first gap is formed between one side of the fixing piece facing the rotating shaft and the spacing sleeve.
10. A powder concentrator, comprising:
a bearing seal structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022523108.2U CN213511747U (en) | 2020-11-04 | 2020-11-04 | Bearing seal structure and powder concentrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022523108.2U CN213511747U (en) | 2020-11-04 | 2020-11-04 | Bearing seal structure and powder concentrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213511747U true CN213511747U (en) | 2021-06-22 |
Family
ID=76420511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022523108.2U Active CN213511747U (en) | 2020-11-04 | 2020-11-04 | Bearing seal structure and powder concentrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213511747U (en) |
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2020
- 2020-11-04 CN CN202022523108.2U patent/CN213511747U/en active Active
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