CN203574475U - Front cover oil film sealing composition of grinding head motor - Google Patents
Front cover oil film sealing composition of grinding head motor Download PDFInfo
- Publication number
- CN203574475U CN203574475U CN201320575591.6U CN201320575591U CN203574475U CN 203574475 U CN203574475 U CN 203574475U CN 201320575591 U CN201320575591 U CN 201320575591U CN 203574475 U CN203574475 U CN 203574475U
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- China
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- oil film
- motor
- front cover
- copper sleeve
- bearing
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- Expired - Fee Related
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Abstract
The utility model relates to a front cover oil film sealing composition of a grinding head motor. The front cover oil film sealing composition comprises a motor body, wherein the motor body includes a motor shell, a front cover, and a rear cover; a motor rotation shaft is mounted in the motor body, a bearing is disposed between the motor rotation shaft and the front cover, and a sealing sleeve between a front cover at a front end of the bearing and the motor rotation shaft is provided with an oil film mechanism; the oil film mechanism comprises an internal ring, a copper sleeve, and a copper sleeve mounting ring, the motor rotation shaft is sleeved with the internal ring, the internal ring is sleeved with the copper sleeve through the copper sleeve mounting ring, and a non-contact interval is disposed between the copper sleeve and the internal ring; an oil film, which is formed in the rotation process of the internal ring with the copper sleeve, forms an effective isolation, so that external liquid is prevented to flow in, and therefore the object of sealing is obtained, water used when a workpiece is grinded is prevented from flowing into a main shaft of the motor, and easy loss of protected bearing lubricating oil is avoided. The front cover oil film sealing composition which employs a cold pressing method, has advantages of being easy to mount, being good in sealing effect by employing a dustproof and waterproof design, being non-contact, having no temperature rise, and being long in usage life.
Description
Technical field
The utility model relates to a kind of motor, especially a kind of protecgulum oil film seal structure of grinding head motor.
Background technology
At present, existing grinding head motor, its protecgulum only seals by oil sealing and machine shaft, and its sealing effectiveness is poor, easily occurs the leakage of lubricating oil, or the infiltration of water, impurity etc., affects machine shaft and moves.Special oil sealing contacts friction and produces high temperature with rotating shaft, cause that motor easily burns out.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned the deficiencies in the prior art part, and provides a kind of convenient for maintaining, good sealing effect, the contactless front epiphragma hermetically-sealed construction of the grinding head motor that water resistance is good.
The purpose of this utility model is achieved in that
A kind of protecgulum oil film seal structure of grinding head motor, comprise motor body, motor body comprises casing, protecgulum and bonnet, machine shaft is installed in motor body, between machine shaft and protecgulum, be provided with bearing, it is characterized in that, between the protecgulum of described bearing front end and machine shaft, sealing shroud is provided with oil film mechanism, oil film mechanism comprises inner ring, copper sheathing and copper sheathing installing ring, inner ring is set on machine shaft, copper sheathing is set on inner ring by copper sheathing installing ring, and is provided with non-contacting, gap between copper sheathing and inner ring.
Hermetically-sealed construction of the present utility model, by setting up the oil film mechanism with copper sheathing, and sealing mechanism is arranged on bearing front end, extraneous impurity, dust, water etc. will first just can reach bearing and motor internal through sealing, gap between inner ring and copper sheathing is little, and be full of grease, in rotary course, form oil film, can be minimum by the probability of oil film, oil film can be effectively opened bearing and motor internal and extraneous obstruct, bearing oil can not be flowed out and reach the object of lubrication, the water simultaneously playing while preventing grinding work piece enters in electric machine main shaft, it is low that the design is easy to installation cost, without compressing structure, water proof and dust proof design good sealing effect, long service life.
The non-contacting, gap that is provided with 0.02mm between described copper sheathing and inner ring.
The beneficial effects of the utility model are:
The protecgulum oil film seal structure of the utility model grinding head motor, by setting up closely spaced copper sheathing, carry out non-contacting sealing, and sealing is arranged on bearing front end, extraneous impurity, dust, water etc. will first just can reach bearing and motor internal through sealing, but the probability that can enter is minimum, reason copper sheathing and inner ring between form oil film, can effectively bearing and extraneous obstruct be left, lubricating oil can not be run off and reach the object of protection, the cooling water simultaneously playing while preventing grinding work piece enters into motor, in bearing spindle, be easy to install without compressing structure, water proof and dust proof design good sealing effect, long service life.
Accompanying drawing explanation
Fig. 1 is half section structural representation of the present utility model.
Fig. 2 is the enlarged drawing at A place in Fig. 1.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1 to Figure 2, a kind of protecgulum oil film seal structure of grinding head motor, comprise motor body 1, motor body 1 comprises casing 101, protecgulum 102 and bonnet 103, machine shaft 2 is installed in motor body 1, between machine shaft 2 and protecgulum 102, be provided with bearing 9, it is characterized in that, between the protecgulum 102 of described bearing 9 front ends and machine shaft 2, sealing shroud is provided with oil film mechanism, oil film mechanism comprises inner ring 8, copper sheathing 7 and copper sheathing installing ring 6, inner ring 8 is set on machine shaft 2, copper sheathing 7 is set on inner ring 8 by copper sheathing installing ring 6, and be provided with non-contacting, gap between copper sheathing 7 and inner ring 8.
The non-contacting, gap that is provided with 0.02mm between described copper sheathing 7 and inner ring 8.
Between described inner ring 8 and copper sheathing 7, can fill oil cured 9 or oiling uniformly in non-contacting, gap, copper sheathing 7 is the installation of closely colding pressing with copper sheathing installing ring 6.
The protecgulum oil film seal structure of the utility model grinding head motor, by setting up closely spaced copper sheathing 7, carry out non-contacting sealing with inner ring 8, and sealing is arranged on bearing 9 front ends, extraneous impurity, dust, water etc. will first just can reach bearing 9 and motor internal through sealing, but the probability that can enter is minimum, reason be copper sheathing 7 and inner ring 8 between form oil film, can effectively bearing and extraneous obstruct be left, lubricating oil can not be run off and reach the object of protection, the cooling water simultaneously playing while preventing grinding work piece enters into bearing 9, in electric machine main shaft 2, be easy to install without compressing structure, water proof and dust proof design good sealing effect, long service life, the high temperataure phenomena not producing in contact.
Above-described specific embodiment, is only the utility model preferred embodiment, and the equivalent arrangements of such as doing according to the utility model claim, all should be technology of the present utility model and contain.
Claims (2)
1. the protecgulum oil film seal structure of a grinding head motor, comprise motor body (1), motor body (1) comprises casing (101), protecgulum (102) and bonnet (103), machine shaft (2) is installed in motor body (1), between machine shaft (2) and protecgulum (102), be provided with bearing (9), it is characterized in that, between the protecgulum (102) of described bearing (9) front end and machine shaft (2), sealing shroud is provided with oil film mechanism, oil film mechanism comprises inner ring (8), copper sheathing (7) and copper sheathing installing ring (6), inner ring (8) is set on machine shaft (2), copper sheathing (7) is set on inner ring (8) by copper sheathing installing ring (6), and be provided with non-contacting, gap between copper sheathing (7) and inner ring (8).
2. the protecgulum oil film seal structure of grinding head motor according to claim 1, is characterized in that the non-contacting, gap that is provided with 0.02mm between described copper sheathing (7) and inner ring (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320575591.6U CN203574475U (en) | 2013-09-17 | 2013-09-17 | Front cover oil film sealing composition of grinding head motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320575591.6U CN203574475U (en) | 2013-09-17 | 2013-09-17 | Front cover oil film sealing composition of grinding head motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203574475U true CN203574475U (en) | 2014-04-30 |
Family
ID=50542186
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320575591.6U Expired - Fee Related CN203574475U (en) | 2013-09-17 | 2013-09-17 | Front cover oil film sealing composition of grinding head motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203574475U (en) |
-
2013
- 2013-09-17 CN CN201320575591.6U patent/CN203574475U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140430 Termination date: 20140917 |
|
| EXPY | Termination of patent right or utility model |