CN214499805U - Rain-proof water structure of bearing oil chamber - Google Patents
Rain-proof water structure of bearing oil chamber Download PDFInfo
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- CN214499805U CN214499805U CN202022787434.4U CN202022787434U CN214499805U CN 214499805 U CN214499805 U CN 214499805U CN 202022787434 U CN202022787434 U CN 202022787434U CN 214499805 U CN214499805 U CN 214499805U
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Abstract
The utility model relates to a rain-proof water structure of bearing grease chamber covers in addition waterproof gland at original bearing, covers at original bearing and sets up oil return labyrinth seal structure. The bearing gland is fixedly arranged on the bearing body, and the waterproof gland is fixedly arranged on the bearing gland; a backwater labyrinth sealing structure is arranged on the waterproof pressure cover, and an annular boss is arranged on one surface of the waterproof pressure cover far away from the bearing cover; and a framework oil seal groove for mounting a framework oil seal is arranged on one surface of the bearing gland, which is attached to the waterproof gland. On the basis of two seals of the labyrinth seal at the inner side and the framework oil seal, the labyrinth seal is added at the outer side. The labyrinth seal structure in the outside can completely cut off the raindrop that inclination fell to collect the discharge through the wet return groove of below with the little raindrop that splashes. The utility model discloses try hard to create the condition as usual of indoor use for the bearing grease chamber, and then prolong its life under outdoor abominable service condition by a wide margin.
Description
Technical Field
The utility model relates to a rain-proof water structure, concretely relates to cover in addition waterproof gland at original bearing, set up oil return labyrinth seal structure on original bearing, can prolong its life's bearing grease chamber rain-proof water structure by a wide margin.
Background
As is known, oil lubrication is adopted for bearings, which is a common lubrication method, and compared with grease lubrication, oil lubrication has the significant advantages of high heat dissipation, and oil lubrication (including oil bath lubrication, forced oil lubrication, oil mist lubrication, and the like) is the only choice for the working conditions of high power and high rotation speed.
However, oil lubrication also has its significant disadvantages, such as low tolerance for impurities, especially moisture. The quality of the lubricating oil is one of the most critical reasons affecting bearing life. The water vapor is mixed into the bearing, the influence on the service life of the bearing is very obvious, and the experimental research of the American Wanewton pump company shows that: if the oil is mixed with water in a mass fraction of 0.002%, the bearing life is reduced by 48%, and if the oil is mixed with water in a mass fraction of 0.06%, the bearing life is reduced by 83%.
According to the data of years of after-sale maintenance records of the inventor, the occurrence rate of damage accidents of the bearings of pump equipment used in the open air in areas with high rainfall in the past project is high. In view of this, the utility model aims at solving the waterproof problem of the bearing oil chamber of the open-air use pump class equipment in the wide subtropical monsoon climate area of china.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model discloses a main aim at provides one kind and covers in addition waterproof gland on original bearing, covers to set up oil return labyrinth seal structure on original bearing, can prolong its life's bearing grease chamber rain-proof water structure by a wide margin.
The utility model discloses a solve above-mentioned technical problem through following technical scheme: a bearing oil chamber rain-proof structure is characterized in that a waterproof gland is added on an original bearing cover, and an oil return labyrinth sealing structure is arranged on the original bearing cover; bearing gland and waterproof gland all install on the axle.
In the embodiment of the present invention, the bearing cover is fixedly installed on the bearing body, and the waterproof cover is fixedly installed on the bearing cover.
A first sealing structure is arranged between the bearing gland and the bearing body, and a second sealing structure is arranged between the waterproof gland and the bearing gland.
The water-proof pressure cover is provided with a backwater labyrinth sealing structure, and one surface of the water-proof pressure cover far away from the bearing pressure cover is provided with an annular boss.
And a framework oil seal groove for mounting a framework oil seal is arranged on one surface of the bearing gland, which is attached to the waterproof gland.
In a specific embodiment of the present invention, the first sealing structure is a first sealing groove formed on the bearing gland and a first sealing ring installed in the first sealing groove;
the second sealing structure is a second sealing groove formed in the waterproof gland and a second sealing ring installed in the second sealing groove.
In the specific embodiment of the utility model, return water labyrinth seal structure bottom is provided with the return water tank.
In the specific embodiment of the utility model, return labyrinth seal structure bottom is provided with the oil gallery.
In a specific embodiment of the present invention, the first sealing ring and the second sealing ring are both O-shaped sealing rings.
In a specific embodiment of the present invention, the diameter range of the first sealing ring is: 3.55-5.3mm, the diameter range of the second sealing ring is as follows: 2.63-3.55 mm.
In the embodiment of the present invention, the O-ring is made of nitrile rubber or fluororubber.
In a specific embodiment of the present invention, the waterproof gland is fixed on the bearing gland by a fixing device; the fixing device is a plurality of bolts which are evenly distributed along the circumference.
In the concrete implementation example of the utility model, the bearing gland is of HT250/20Cr13 steel structure; the waterproof gland is a waterproof gland of a 20Cr13 steel structure.
The utility model discloses an actively advance the effect and lie in: the utility model provides a rain-proof water structure of bearing grease chamber covers in addition waterproof gland at original bearing, covers at original bearing and sets up oil return labyrinth seal structure, increases one labyrinth seal in the outside again. The labyrinth seal structure in the outside can completely cut off the raindrop that inclination fell to collect the discharge through the wet return groove of below with the little raindrop that splashes. The utility model discloses try hard to create the condition as usual of indoor use for the bearing grease chamber, and then prolong its life under outdoor abominable service condition by a wide margin.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
The utility model discloses the name that well reference numeral corresponds:
Detailed Description
The following provides a preferred embodiment of the present invention with reference to the accompanying drawings to explain the technical solutions of the present invention in detail.
Fig. 1 is a schematic view of the overall structure of the present invention. As shown in fig. 1: the utility model provides a rain-proof structure of a bearing oil chamber, which is characterized in that a waterproof gland 3 is added on the original bearing gland 1, and an oil return labyrinth seal structure 6 is arranged on the original bearing gland 1; both the bearing gland and the waterproof gland are mounted on the shaft 15.
The bearing gland 1 is fixedly arranged on the bearing body 8, and the waterproof gland 3 is fixedly arranged on the bearing gland 1; a first sealing structure 11 is arranged between the bearing gland 1 and the bearing body 8, and a second sealing structure 12 is arranged between the waterproof gland 3 and the bearing gland 1; a water return labyrinth seal structure 7 is arranged on the waterproof gland 3, and an annular boss 9 is arranged on one surface of the waterproof gland 3, which is far away from the bearing gland 1; and a framework oil seal groove 10 for mounting the framework oil seal 2 is formed in one surface of the bearing gland 1, which is attached to the waterproof gland 3.
The first seal structure 11 is a first seal groove opened in the bearing cover 1 and a first seal ring 401 installed in the first seal groove.
The second sealing structure 12 is a second sealing groove opened on the waterproof gland 3 and a second sealing ring 402 installed in the second sealing groove. The first sealing ring and the second sealing ring are both O-shaped sealing rings.
The diameter range of the first sealing ring is as follows: 3.55-5.3mm, the diameter range of the second sealing ring is as follows: 2.63-3.55 mm.
A water return groove 13 is formed in the bottom of the water return labyrinth sealing structure 7, and an oil return groove 14 is formed in the bottom of the oil return labyrinth sealing structure 6.
The utility model discloses an among the concrete implementation, the sealing washer is O shape sealing washer, and the diameter scope of O shape sealing washer can be selected as: 1.8-2.3mm, and the O-shaped sealing ring is made of nitrile rubber or fluororubber.
The waterproof gland is fixed on the bearing gland through a fixing device 5; the fixing device is a plurality of bolts which are uniformly distributed along the circumference, and the fixing can be realized by four bolts.
In a specific implementation, the bearing gland may be of HT250/20Cr13 steel construction. The waterproof gland can be a waterproof gland of a 20Cr13 steel structure.
In fig. 1, the left side is the oil level, and the right side is the rain level, the utility model discloses on this twice sealed basis of inboard labyrinth seal with the skeleton oil blanket, one labyrinth seal is increased again in the outside. The labyrinth seal structure in the outside can completely cut off the raindrop that inclination fell to collect the discharge through the wet return groove of below with the little raindrop that splashes.
The gland binding face adopts O-shaped sealing ring to seal and prevent water from flowing into the interior along the installation clearance of the side wall of the bearing gland, and the gland and the fastener are made of stainless steel materials to prevent corrosion failure.
On the other hand, the labyrinth seal structure on the outer side seals the framework oil seal in the inner part, so that the framework oil seal is protected from abrasion caused by atmospheric dust fall, and can be isolated from strong sunlight radiation in an open-air environment, and sealing failure caused by rapid aging of high polymer materials due to photolysis is avoided.
The utility model discloses an influence two big sources of oil lubrication bearing life-span under to open air environment: sunlight and raindrops are isolated, indoor use conditions are created for the bearing oil chamber as much as possible, and the service life of the bearing oil chamber under outdoor severe use conditions is further greatly prolonged.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims and their equivalents.
Claims (9)
1. The utility model provides a rain-proof water structure of bearing grease chamber which characterized in that: the bearing oil chamber rainproof structure is characterized in that a waterproof gland is added on an original bearing gland, and an oil return labyrinth seal structure is arranged on the original bearing gland; the bearing gland and the waterproof gland are both arranged on the shaft;
the bearing gland is fixedly arranged on the bearing body, and the waterproof gland is fixedly arranged on the bearing gland;
a first sealing structure is arranged between the bearing gland and the bearing body,
a second sealing structure is arranged between the waterproof gland and the bearing gland;
a backwater labyrinth sealing structure is arranged on the waterproof pressure cover, and an annular boss is arranged on one surface of the waterproof pressure cover far away from the bearing cover;
and a framework oil seal groove for mounting a framework oil seal is arranged on one surface of the bearing gland, which is attached to the waterproof gland.
2. The bearing oil chamber rain proof structure of claim 1, wherein: the first sealing structure is a first sealing groove formed on the bearing gland and a first sealing ring arranged in the first sealing groove;
the second sealing structure is a second sealing groove formed in the waterproof gland and a second sealing ring installed in the second sealing groove.
3. The bearing oil chamber rain proof structure of claim 1, wherein: and a water return groove is formed in the bottom of the water return labyrinth sealing structure.
4. The bearing oil chamber rain proof structure of claim 1, wherein: and an oil return groove is formed in the bottom of the oil return labyrinth sealing structure.
5. The bearing oil chamber rain proof structure of claim 2, wherein: the first sealing ring and the second sealing ring are both O-shaped sealing rings.
6. The bearing oil chamber rain proof structure of claim 5, wherein: the diameter range of the first sealing ring is as follows: 3.55-5.3mm, the diameter range of the second sealing ring is as follows: 2.63-3.55 mm.
7. The bearing oil chamber rain proof structure of claim 5, wherein: the O-shaped sealing ring is made of nitrile rubber or fluororubber.
8. The bearing oil chamber rain proof structure of claim 1, wherein: the waterproof gland is fixed on the bearing gland through a fixing device; the fixing device is a plurality of bolts which are evenly distributed along the circumference.
9. The bearing oil chamber rain proof structure of claim 1, wherein: the bearing gland is of a HT250/20Cr13 steel structure; the waterproof gland is a waterproof gland of a 20Cr13 steel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022787434.4U CN214499805U (en) | 2020-11-26 | 2020-11-26 | Rain-proof water structure of bearing oil chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022787434.4U CN214499805U (en) | 2020-11-26 | 2020-11-26 | Rain-proof water structure of bearing oil chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214499805U true CN214499805U (en) | 2021-10-26 |
Family
ID=78206908
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022787434.4U Active CN214499805U (en) | 2020-11-26 | 2020-11-26 | Rain-proof water structure of bearing oil chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214499805U (en) |
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2020
- 2020-11-26 CN CN202022787434.4U patent/CN214499805U/en active Active
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