CN216500065U - Sealing structure of direct connection motor in centrifugal machine - Google Patents
Sealing structure of direct connection motor in centrifugal machine Download PDFInfo
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- CN216500065U CN216500065U CN202123337348.4U CN202123337348U CN216500065U CN 216500065 U CN216500065 U CN 216500065U CN 202123337348 U CN202123337348 U CN 202123337348U CN 216500065 U CN216500065 U CN 216500065U
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Abstract
The utility model discloses a sealing structure of a direct connection motor in a centrifugal machine, which comprises: the bottom of the motor cover is hermetically arranged on the bottom plate, the top of the motor cover is hermetically arranged on a machine body of the direct-connection motor, a shaft sleeve is sleeved on an output shaft of the direct-connection motor, a second sealing ring is arranged between the shaft sleeve and a motor shaft bearing cover, and a third sealing ring is arranged between the shaft sleeve and the bottom of the rotary drum; a motor shaft bearing cover is sleeved on the outer side of the shaft sleeve and fixed on the machine body of the direct-coupled motor through an inner hexagonal screw, a sealing cover is arranged on the cap body of the inner hexagonal screw, and a fourth sealing ring is arranged between the sealing cover and the motor shaft bearing cover; an annular mounting step matched with the top of the motor cover is arranged on the annular edge of the outer side of the bottom of the motor shaft pressure bearing cover, and a fifth sealing ring is arranged between the annular mounting step and the top of the motor cover. The sealing structure of the direct connection motor is mainly used in a centrifugal machine which adopts the direct connection motor as power.
Description
Technical Field
The utility model relates to a centrifugal machine, in particular to a sealing structure of a direct connection motor in the centrifugal machine.
Background
At present, for a centrifuge which adopts a direct connection motor to drive a rotary drum, only one motor cover is generally adopted to seal the connection part of an output shaft of the direct connection motor and the bottom of the rotary drum, namely the bottom of the rotary drum, the sealing effect is poor, and liquid in a centrifuge body still enters the direct connection motor, so that the service life of the direct connection motor is seriously influenced.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: the sealing structure of the direct connection motor in the centrifuge is provided, and the direct connection motor and the bottom of the rotary drum are completely sealed.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: a sealing structure of a direct connection motor in a centrifuge comprises: the motor cover is matched with the machine body of the direct-connection motor, and the machine body of the direct-connection motor is arranged in the bottom plate in a penetrating mode; the bottom of the motor cover is provided with a lower flange, the lower flange is arranged on the bottom plate, a first sealing ring is arranged between the lower flange and the bottom plate, the top of the motor cover is provided with an upper flange matched with a machine body of a direct-connection motor, the upper flange is arranged on the machine body of the direct-connection motor, an output shaft of the direct-connection motor penetrates through the machine body of the direct-connection motor through a bearing, the output shaft of the direct-connection motor is sleeved with a shaft sleeve, a shaft sleeve mounting ring matched with the shaft sleeve is arranged on the rotary drum bottom, a motor shaft bearing cover is sleeved on the outer side of the shaft sleeve, a second sealing ring is arranged between the lower part of the shaft sleeve and the motor shaft bearing cover, and a third sealing ring is arranged between the upper part of the shaft sleeve and the shaft sleeve mounting ring; the motor shaft bearing cover is circumferentially provided with at least two mounting through holes, a machine body of the direct connection motor is provided with a mounting threaded hole corresponding to the mounting through hole on the motor bearing cover, an inner hexagonal screw is selected to penetrate through the mounting through hole on the motor shaft bearing cover and is screwed in the mounting threaded hole on the machine body of the direct connection motor, the motor shaft bearing cover is fixed on the machine body of the direct connection motor, a cap body of the inner hexagonal screw is cylindrical, an outer connecting thread is arranged on the cap body, a sealing cover with an inner connecting thread side wall is arranged on the cap body through the outer connecting thread, and a fourth sealing ring is arranged between the sealing cover and the motor shaft bearing cover; an annular mounting step matched with the upper flange is arranged on the outer annular edge of the bottom of the motor shaft pressure bearing cover, and a fifth sealing ring is arranged between the annular mounting step and the upper flange.
As a preferred scheme, in the sealing structure of the direct connection motor in the centrifuge, at least three mounting through holes are formed in the bearing cover of the motor shaft along the circumferential direction, and correspondingly, three mounting threaded holes corresponding to the mounting through holes in the bearing cover of the motor are formed in the body of the direct connection motor along the circumferential direction.
As a preferred scheme, in the sealing structure of the direct connection motor in the centrifuge, the motor shaft pressure-bearing cover is uniformly provided with four mounting through holes along the circumferential direction, which correspond to the four mounting through holes, and the body of the direct connection motor is provided with four mounting threaded holes along the circumferential direction, which correspond to the mounting through holes on the motor bearing gland one to one.
As a preferable scheme, in the sealing structure of the direct connection motor in the centrifuge, an elastic pad is further arranged between the socket head cap screw and the motor bearing pressure cover.
As a preferable scheme, in the sealing structure of the direct connection motor in the centrifuge, the lower flange is installed in a manner that: the bottom plate is provided with an annular bulge matched with the lower flange, the bottom plate is provided with at least two fastening threaded holes along the circumferential direction on the end face of the annular bulge, the lower flange is provided with mounting through holes corresponding to the fastening threaded holes, and selected screws penetrate through the mounting through holes in the lower flange and are screwed in the fastening threaded holes in the bottom plate.
The utility model has the beneficial effects that: the lower flange of the motor cover and the machine body of the direct-connection motor, the upper flange of the motor cover and the motor shaft bearing cover, the shaft sleeve and the bottom of the rotary drum and the base are all sealed by the hexagon socket head cap screws for installation, so that the machine body of the direct-connection motor and the bottom of the rotary drum are completely sealed, liquid and gas in the machine body of the centrifugal machine can be prevented from entering the direct-connection motor, the direct-connection motor is protected, the service life of the direct-connection motor can be greatly prolonged, and the integral sealing performance of the centrifugal machine is ensured.
Drawings
Fig. 1 is a schematic view of a sealing structure of a direct connection motor in the centrifuge of the present invention.
Fig. 2 is an enlarged schematic view of a portion a of fig. 1.
The reference numerals in fig. 1 to 2 are respectively: 1. the direct connection motor comprises a direct connection motor body 10, a motor body 11, an output shaft 13, a shaft sleeve 15, a bearing 3, a motor cover 31, an upper flange 32, a lower flange 4, a motor shaft bearing cover 5, a hexagon socket head cap screw 50, a cap body 6, a sealing cover 60, a fourth sealing ring 61, an elastic cushion 80, a rotary drum bottom 81, a shaft sleeve mounting ring 9, a bottom plate 91 and an annular bulge.
Detailed Description
The following describes in detail a specific embodiment of a sealing structure of a direct connection motor in a centrifuge according to the present invention with reference to the accompanying drawings.
As shown in fig. 1, the sealing structure of the direct connection motor in the centrifuge according to the present invention includes: the motor comprises a bottom plate 9, a rotary drum bottom 80 connected with an output shaft 11 of the direct connection motor 1 and a motor cover 3 matched with a machine body 10 of the direct connection motor 1, wherein the machine body 10 of the direct connection motor 1 penetrates through the bottom plate 9; the bottom of the motor cover 3 is provided with a lower flange 32, the lower flange 32 is arranged on the bottom plate 9, and the specific installation mode of the lower flange 32 is as follows: the bottom plate 9 is provided with an annular convex part 91 matched with the lower flange 32, the end surface of the annular convex part 91 of the bottom plate 9 is uniformly provided with at least two fastening threaded holes (usually more than three) along the circumferential direction, the lower flange 32 is provided with mounting through holes corresponding to the fastening threaded holes, and selected screws penetrate through the mounting through holes on the lower flange 32 and are screwed in the fastening threaded holes on the bottom plate 9; a first sealing ring is arranged between the lower flange 32 and the bottom plate 9, an upper flange 31 matched with a machine body 10 of the direct connection motor 1 is arranged at the top of the motor cover 3, the upper flange 31 is arranged on the machine body 10 of the direct connection motor 1, an output shaft 11 of the direct connection motor 1 is arranged in the machine body 10 of the direct connection motor 1 in a penetrating manner through a bearing 15, a shaft sleeve 13 is sleeved on the output shaft 11 of the direct connection motor 1, a shaft sleeve mounting ring 81 matched with the shaft sleeve 13 is arranged on the drum bottom 80, a motor bearing gland 4 is sleeved on the outer side of the shaft sleeve 13, a second sealing ring is arranged between the lower part of the shaft sleeve 13 and the motor bearing gland 4, and a third sealing ring is arranged between the upper part of the shaft sleeve 13 and the shaft sleeve mounting ring 81; at least two mounting through holes (usually more than three) are uniformly arranged on the motor bearing gland 4 along the circumferential direction, the machine body 10 of the direct-connected motor 1 is provided with a mounting threaded hole corresponding to the mounting through hole on the motor bearing gland 4, an inner hexagon screw 5 is selected to be sleeved with an elastic pad 61, then the elastic pad passes through the mounting through hole on the motor bearing gland 4 and is screwed in the mounting threaded hole on the machine body 10 of the direct-connected motor 1, the motor bearing cover 4 is fixed on the machine body 10 of the direct connection motor 1, the cap body 50 of the socket head cap screw 5 is cylindrical, the cap body 50 is provided with an external connecting thread, the cap body 50 is provided with a sealing cover 6 with an internal connecting thread side wall through the external connecting thread (the connecting mode is the conventional technology in the field, and the description is not expanded here), and a fourth sealing ring 60 is arranged between the sealing cover 6 and the motor bearing gland 4; an annular mounting step matched with the upper flange 31 is formed in the outer annular edge of the bottom of the motor bearing gland 4, and a fifth sealing ring is arranged between the annular mounting step and the upper flange 31.
According to the utility model, the hexagon socket head cap screws 5 used for installation are sealed between the lower flange 32 of the motor cover 3 and the machine body 10 of the direct-connected motor 1, between the upper flange 31 of the motor cover 3 and the motor bearing gland 4, between the shaft sleeve 13 and the rotary drum bottom 80, so that the machine body 10 of the direct-connected motor 1 and the rotary drum bottom 80 are completely sealed, thus liquid and gas in the centrifuge machine body can be ensured not to enter the direct-connected motor 1, the direct-connected motor 1 is protected, the service life of the direct-connected motor 1 can be greatly prolonged, and the integral sealing performance of the centrifuge is ensured.
In summary, the present invention is only a preferred embodiment, and not intended to limit the scope of the utility model, and all equivalent changes and modifications made in the shape, structure, characteristics and spirit of the present invention described in the claims should be included in the scope of the present invention.
Claims (5)
1. A sealing structure of a direct connection motor in a centrifuge comprises: the motor cover is matched with the machine body of the direct-connection motor, and the machine body of the direct-connection motor is arranged in the bottom plate in a penetrating mode; the device is characterized in that a lower flange is arranged at the bottom of the motor cover, the lower flange is arranged on the bottom plate, a first sealing ring is arranged between the lower flange and the bottom plate, an upper flange matched with a machine body of a direct-connection motor is arranged at the top of the motor cover, the upper flange is arranged on the machine body of the direct-connection motor, an output shaft of the direct-connection motor penetrates through the machine body of the direct-connection motor through a bearing, a shaft sleeve is sleeved on the output shaft of the direct-connection motor, a shaft sleeve mounting ring matched with the shaft sleeve is arranged on the bottom of the rotary drum, a motor shaft bearing cover is sleeved on the outer side of the shaft sleeve, a second sealing ring is arranged between the lower part of the shaft sleeve and the motor shaft bearing cover, and a third sealing ring is arranged between the upper part of the shaft sleeve and the shaft sleeve mounting ring; the motor shaft bearing cover is circumferentially provided with at least two mounting through holes, a machine body of the direct connection motor is provided with a mounting threaded hole corresponding to the mounting through hole on the motor bearing cover, an inner hexagonal screw is selected to penetrate through the mounting through hole on the motor shaft bearing cover and is screwed in the mounting threaded hole on the machine body of the direct connection motor, the motor shaft bearing cover is fixed on the machine body of the direct connection motor, a cap body of the inner hexagonal screw is cylindrical, an outer connecting thread is arranged on the cap body, a sealing cover with an inner connecting thread side wall is arranged on the cap body through the outer connecting thread, and a fourth sealing ring is arranged between the sealing cover and the motor shaft bearing cover; an annular mounting step matched with the upper flange is arranged on the outer annular edge of the bottom of the motor shaft pressure bearing cover, and a fifth sealing ring is arranged between the annular mounting step and the upper flange.
2. The sealing structure of the direct connection motor in the centrifuge according to claim 1, characterized in that: the motor shaft bearing cover is provided with at least three mounting through holes along the circumferential direction, the mounting through holes correspond to the mounting through holes, and the machine body of the direct connection motor is provided with three mounting threaded holes corresponding to the mounting through holes on the motor bearing cover one to one along the circumferential direction.
3. The sealing structure of the direct connection motor in the centrifuge according to claim 1, characterized in that: four mounting through holes are uniformly formed in the motor shaft pressure bearing cover along the circumferential direction and correspond to the four mounting through holes, and four mounting threaded holes which correspond to the mounting through holes in the motor bearing cover one to one are formed in the machine body of the direct connection motor along the circumferential direction.
4. The sealing structure of the direct connection motor in the centrifuge according to claim 1, characterized in that: and an elastic pad is also arranged between the inner hexagon screw and the motor shaft pressure bearing cover.
5. The sealing structure of the direct connection motor in the centrifuge according to any one of claims 1 to 4, characterized in that: the specific installation mode of the lower flange is as follows: the bottom plate is provided with an annular bulge matched with the lower flange, the bottom plate is provided with at least two fastening threaded holes along the circumferential direction on the end surface of the annular bulge, the lower flange is provided with mounting through holes corresponding to the fastening threaded holes, and selected screws penetrate through the mounting through holes in the lower flange and are screwed in the fastening threaded holes in the bottom plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123337348.4U CN216500065U (en) | 2021-12-28 | 2021-12-28 | Sealing structure of direct connection motor in centrifugal machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123337348.4U CN216500065U (en) | 2021-12-28 | 2021-12-28 | Sealing structure of direct connection motor in centrifugal machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216500065U true CN216500065U (en) | 2022-05-13 |
Family
ID=81505533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123337348.4U Active CN216500065U (en) | 2021-12-28 | 2021-12-28 | Sealing structure of direct connection motor in centrifugal machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216500065U (en) |
-
2021
- 2021-12-28 CN CN202123337348.4U patent/CN216500065U/en active Active
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