CN211259385U - Oil leakage-proof self-lubricating bearing - Google Patents
Oil leakage-proof self-lubricating bearing Download PDFInfo
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- CN211259385U CN211259385U CN201921969182.8U CN201921969182U CN211259385U CN 211259385 U CN211259385 U CN 211259385U CN 201921969182 U CN201921969182 U CN 201921969182U CN 211259385 U CN211259385 U CN 211259385U
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Abstract
The embodiment of the utility model provides a self-lubricating bearing of leak protection oil belongs to bearing technical field, self-lubricating bearing includes: a housing, the housing divided into: the bearing frame, be provided with on the bearing frame: the oil storage cavity is arranged at the bottom of the bearing seat, and lubricating oil can be stored in the oil storage cavity; the axial direction of the oil storage cavity is provided with a first side of the oil storage cavity and a second side of the oil storage cavity which are opposite; a stagnation chamber disposed on a second side of the oil reservoir chamber; the balance part is internally provided with a balance cavity which is communicated with the detention cavity and the oil storage cavity; when the self-lubricating bearing is axially inclined towards the second side of the oil storage cavity, the lubricating oil flows into the retention cavity from the oil storage cavity; and the lubricating oil in the retention cavity can flow back to the oil storage cavity through the balance cavity. The technical effect that the self-lubricating bearing cannot leak oil under the axial inclination in a short time is achieved.
Description
Technical Field
The utility model relates to a bearing technical field especially relates to a self-lubricating bearing of leak protection oil.
Background
The current self-lubricating bearing is internally provided with an oil storage cavity, and the lubricating oil is driven to act on the bearing bush by an oil thrower, so that the internal self-lubricating is realized. The sealing form of the lubricating oil is rotary dynamic sealing, and the sealing ring is used for ensuring that no oil leakage exists between the rotating shaft and the self-lubricating bearing.
The oil leakage prevention self-lubricating bearing is needed at present, and the specific oil leakage prevention requirement is as follows: the self-lubricating bearing is free from oil leakage in fifteen minutes under the condition of axial inclination of 30 degrees; the self-lubricating bearing is ensured to be arranged on the swaying equipment to work normally, and the condition that the lubricating oil is insufficient to burn the tile due to oil leakage is avoided.
Therefore, the technical problems of the prior art are as follows: the self-lubricating bearing has weak axial sealing capability and oil leakage due to axial inclination.
Disclosure of Invention
The embodiment of the application provides an oil leakage prevention self-lubricating bearing, and the technical problems that in the prior art, the self-lubricating bearing is poor in axial sealing capacity and oil leaks due to axial inclination; the technical effect that the self-lubricating bearing cannot leak oil under the axial inclination in a short time is achieved.
The embodiment of the application provides a self-lubricating bearing of leak protection oil, self-lubricating bearing includes: a housing, the housing divided into: the bearing frame, be provided with on the bearing frame: the oil storage cavity is arranged at the bottom of the bearing seat, and lubricating oil can be stored in the oil storage cavity; the axial direction of the oil storage cavity is provided with a first side of the oil storage cavity and a second side of the oil storage cavity which are opposite; a stagnation chamber disposed on a second side of the oil reservoir chamber; the balance part is internally provided with a balance cavity which is communicated with the detention cavity and the oil storage cavity; when the self-lubricating bearing is axially inclined towards the second side of the oil storage cavity, the lubricating oil flows into the retention cavity from the oil storage cavity; and the lubricating oil in the retention cavity can flow back to the oil storage cavity through the balance cavity.
Preferably, the housing further comprises: the bearing cover is arranged on the bearing seat, and the bearing cover and the bearing seat form an inner cavity; the first sealing ring is positioned between the oil storage cavity and the retention cavity; the second sealing ring is parallel to the first sealing ring and arranged on the opposite side of the detention cavity relative to the first sealing ring; the oil storage cavity is in a sealed state through the first sealing ring, and the detention cavity is in a sealed state through the first sealing ring and the second sealing ring.
Preferably, the balancing chamber has: a balance cavity inlet communicating with the floor of the retention cavity; and the balance cavity outlet is communicated with the first side of the oil storage cavity.
Preferably, the height of the outlet of the balancing chamber is higher than the height of the inlet of the balancing chamber.
Preferably, two detention cavities are arranged and are respectively positioned on the first side and the second side of the oil storage cavity; and the balance cavities are provided with two cavities, so that the two detention cavities are respectively communicated with the oil storage cavity.
Preferably, the balance portion and the bearing housing are integral.
Preferably, the first seal ring and the second seal ring have the same specification.
Preferably, a bearing bush and an oil thrower are further arranged in the shell; the shell is provided with a pressure groove; the pressure groove is communicated with the two parts of the inner cavity, and the pressure of the two parts of the inner cavity is balanced through the pressure groove.
One or more technical solutions in the embodiments of the present application have at least one or more of the following technical effects:
1. in the embodiment of the application, the retention cavity and the balance cavity are arranged, and the lubricating oil seeped out from the first sealing ring is contained in the retention cavity, so that the lubricating oil is contained in a short time, and the lubricating oil is prevented from flowing out of the bearing; the size of the specific detention cavity determines the amount of lubricating oil contained; by utilizing the balance cavity, after the bearing is reset, lubricating oil flows back to the oil storage cavity from the retention cavity; the technical problems that in the prior art, the self-lubricating bearing is weak in axial sealing capability and oil leaks due to axial inclination are solved; the technical effect that the self-lubricating bearing cannot leak oil under the axial inclination in a short time is achieved.
2. In the embodiment of the application, the detention cavity is arranged on the first side of the oil storage cavity; and the outlet of the balance cavity is arranged on the second side of the oil storage cavity, so that the lubricating oil cannot flow back into the oil storage cavity in the inclined state of the bearing.
3. In the embodiment of the application, the detention cavities are arranged on the two sides of the oil storage cavity, so that temporary oil storage can be carried out on the bearing when the two sides of the bearing are inclined in the axial direction, and direct leakage is avoided.
Drawings
FIG. 1 is an exploded view of a self-lubricating bearing according to an embodiment of the present application;
FIG. 2 is a schematic sectional view of a self-lubricating bearing in an embodiment of the present application;
FIG. 3 is a schematic cross-sectional view of A-A in FIG. 2;
FIG. 4 is a schematic sectional view of a self-lubricating bearing of an embodiment of the present application taken along a main viewing direction and tilted 30 degrees in an axial direction;
FIG. 5 is a schematic view in section and in partial section of a self-lubricating bearing in an embodiment of the present application in elevation after axial tilting to a reduced position;
FIG. 6 is a schematic structural diagram of a self-lubricating bearing with a bearing cap removed according to an embodiment of the present application;
fig. 7 is a schematic top view of the structure of fig. 6.
Reference numerals: 1. a housing; 11. a bearing seat; 111. an oil storage chamber; 112. a shunting cavity; 113. a retention chamber; 114. a balancing section; 1141. a balancing chamber; 11411. a balance chamber inlet; 11412. a balance chamber outlet; 115. a pressure tank; 12. a bearing cap; 13. a first seal ring; 14. a second seal ring; 2. bearing bushes; 3. an oil slinger.
Detailed Description
The embodiment of the application provides an oil leakage prevention self-lubricating bearing, through setting up the detention cavity 113 and the balance cavity 1141, utilize the detention cavity 113 to hold the lubricating oil that oozes from the first seal ring 13, realize the lubricating oil of holding in the short time, avoid the lubricating oil to flow out from the bearing; the size of the specific stagnation chamber 113 determines the amount of lubricating oil contained; with the balance chamber 1141, after the bearing is reset, the lubricating oil is made to flow back to the oil storage chamber 111 from the retention chamber 113; the technical problems that in the prior art, the self-lubricating bearing is weak in axial sealing capability and oil leaks due to axial inclination are solved; the technical effect that the self-lubricating bearing cannot leak oil under the axial inclination in a short time is achieved.
In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.
Example one
An oil-leak-proof self-lubricating bearing, comprising: the oil thrower comprises a shell 1, a bearing bush 2 and an oil thrower 3. The shell 1 is divided into a bearing seat 11 and a bearing cover 12; the bearing cover 12 is arranged on the bearing seat 11, the bearing cover 12 and the bearing seat 11 form an inner cavity, and the shell 1 is provided with a first sealing ring 13, a second sealing ring 14 and a pressure groove 115. The bearing bush 2 is positioned in the inner cavity of the shell 1, and the bearing bush 2 is matched with the oil thrower 3 to divide the inner cavity of the shell 1 into two parts according to the axial direction.
The bearing frame 11, be provided with on the bearing frame 11: a reservoir chamber 111, a retention chamber 113, and a balance portion 114. The leaked lubricating oil in the oil reservoir chamber 111 is accommodated by the retention chamber 113, and the lubricating oil in the retention chamber 113 is returned to the oil reservoir chamber 111 by the balance portion 114. When the self-lubricating bearing is axially inclined to the second side of the oil storage chamber 111, the lubricating oil flows into the retention chamber 113 from the oil storage chamber 111; and the lubricating oil in the stagnation chamber 113 can flow back to the oil storage chamber 111 through the balance chamber 1141.
An oil storage chamber 111, wherein the oil storage chamber 111 is arranged at the bottom of the bearing seat 11, and lubricating oil can be stored in the oil storage chamber 111; and the axial direction of the reservoir chamber 111 has a first side of the reservoir chamber 111 and a second side of the reservoir chamber 111 opposite to each other.
A stagnation chamber 113, the stagnation chamber 113 being disposed at a second side of the oil storage chamber 111; it is preferable that the stagnation chamber 113 corresponds to a central low point of the sidewall of the inner chamber so that the lubricating oil is introduced into the stagnation chamber 113 immediately after the leakage.
A balance part 114, in which a balance chamber 1141 is provided in the balance part 114, the balance chamber 1141 communicating the retention chamber 113 and the oil storage chamber 111; the balance chamber 1141 has a balance chamber inlet 11411 communicating with the bottom surface of the retention chamber 113; a balance chamber outlet 11412, the balance chamber outlet 11412 communicating with a first side of the reservoir chamber 111. The balance chamber outlet 11412 is at a higher elevation than the balance chamber inlet 11411. Preferably, the balance part 114 and the bearing seat 11 are integral
Specifically, two stagnation chambers 113 are provided, which are located on a first side of the reservoir chamber 111 and a second side of the reservoir chamber 111, respectively; and two of the balance chambers 1141 are provided so that the two stagnation chambers 113 communicate with the oil storage chamber 111, respectively.
A first seal ring 13, the first seal ring 13 being located between the oil storage chamber 111 and the stagnation chamber 113; the second sealing ring 14 is parallel to the first sealing ring 13, and the specifications of the first sealing ring 13 and the second sealing ring 14 are consistent; and the second seal ring 14 is arranged on the opposite side of the stagnation chamber 113 with respect to the first seal ring 13; the oil storage chamber 111 is sealed by the first seal ring 13, and the retention chamber 113 is sealed by the first seal ring 13 and the second seal ring 14.
The pressure groove 115 is arranged on the shell 1, and particularly can be arranged on the connecting surface of the bearing cover 12 and the bearing seat 11; the bearing shell 2 and the oil thrower 3 divide the inner cavity of the housing 1 into two axial parts, and the pressure groove 115 communicates the two parts of the inner cavity and balances the pressures of the two parts of the inner cavity through the pressure groove 115.
The working principle is as follows:
when the bearing is axially inclined, lubricating oil seeps out from the oil storage cavity 111 through the first sealing ring 13 and falls into the retention cavity 113, and the retention cavity 113 contains the lubricating oil seeped out from the first sealing ring 13, so that the lubricating oil can be contained in a short time, and the lubricating oil is prevented from flowing out of the bearing;
after the bearing is restored, the lubricating oil is returned from the stagnation chamber 113 to the oil reservoir chamber 111 by the balance chamber 1141.
The technical effects are as follows:
1. in the embodiment of the application, the retention cavity and the balance cavity are arranged, and the lubricating oil seeped out from the first sealing ring is contained in the retention cavity, so that the lubricating oil is contained in a short time, and the lubricating oil is prevented from flowing out of the bearing; the size of the specific detention cavity determines the amount of lubricating oil contained; by utilizing the balance cavity, after the bearing is reset, lubricating oil flows back to the oil storage cavity from the retention cavity; the technical problems that in the prior art, the self-lubricating bearing is weak in axial sealing capability and oil leaks due to axial inclination are solved; the technical effect that the self-lubricating bearing cannot leak oil under the axial inclination in a short time is achieved.
2. In the embodiment of the application, the detention cavity is arranged on the first side of the oil storage cavity; and the outlet of the balance cavity is arranged on the second side of the oil storage cavity, so that the lubricating oil cannot flow back into the oil storage cavity in the inclined state of the bearing.
3. In the embodiment of the application, the detention cavities are arranged on the two sides of the oil storage cavity, so that temporary oil storage can be carried out on the bearing when the two sides of the bearing are inclined in the axial direction, and direct leakage is avoided.
While the preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the scope of the invention.
It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (8)
1. An oil-leak-proof self-lubricating bearing, characterized by comprising:
a housing, the housing divided into:
the bearing frame, be provided with on the bearing frame:
the oil storage cavity is arranged at the bottom of the bearing seat, and lubricating oil can be stored in the oil storage cavity; the axial direction of the oil storage cavity is provided with a first side of the oil storage cavity and a second side of the oil storage cavity which are opposite;
a stagnation chamber disposed on a second side of the oil reservoir chamber; and
the balance part is internally provided with a balance cavity which is communicated with the detention cavity and the oil storage cavity;
when the self-lubricating bearing is axially inclined towards the second side of the oil storage cavity, the lubricating oil flows into the retention cavity from the oil storage cavity; and the lubricating oil in the retention cavity can flow back to the oil storage cavity through the balance cavity.
2. The self-lubricating bearing of claim 1, wherein the housing further comprises:
the bearing cover is arranged on the bearing seat, and the bearing cover and the bearing seat form an inner cavity;
the first sealing ring is positioned between the oil storage cavity and the retention cavity; and
the second sealing ring is parallel to the first sealing ring and is arranged on the opposite side of the detention cavity relative to the first sealing ring;
the oil storage cavity is in a sealed state through the first sealing ring, and the detention cavity is in a sealed state through the first sealing ring and the second sealing ring.
3. The self-lubricating bearing of claim 1, wherein the balance cavity has:
a balance cavity inlet communicating with the floor of the retention cavity;
and the balance cavity outlet is communicated with the first side of the oil storage cavity.
4. The self-lubricating bearing of claim 3, wherein the balance chamber outlet has a height greater than a height of the balance chamber inlet.
5. The self-lubricating bearing of claim 1, wherein there are two of the stagnation chambers located on a first side of the oil reservoir chamber and a second side of the oil reservoir chamber;
and the balance cavities are provided with two cavities, so that the two detention cavities are respectively communicated with the oil storage cavity.
6. The self-lubricating bearing of claim 1, wherein the balance portion and the bearing housing are integral.
7. The self-lubricating bearing of claim 2, wherein the first seal ring and the second seal ring are of uniform gauge.
8. The self-lubricating bearing of claim 1, wherein a bearing shell and a slinger are further disposed within the housing; the shell is provided with a pressure groove;
the pressure groove is communicated with the two parts of the inner cavity, and the pressure of the two parts of the inner cavity is balanced through the pressure groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921969182.8U CN211259385U (en) | 2019-11-15 | 2019-11-15 | Oil leakage-proof self-lubricating bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921969182.8U CN211259385U (en) | 2019-11-15 | 2019-11-15 | Oil leakage-proof self-lubricating bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211259385U true CN211259385U (en) | 2020-08-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921969182.8U Active CN211259385U (en) | 2019-11-15 | 2019-11-15 | Oil leakage-proof self-lubricating bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211259385U (en) |
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2019
- 2019-11-15 CN CN201921969182.8U patent/CN211259385U/en active Active
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| GR01 | Patent grant | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20210915 Address after: 311809 Dingxin Village, Huangshan Town, Zhuji City, Shaoxing City, Zhejiang Province Patentee after: ZHUJI JINGZHAN MACHINERY Co.,Ltd. Address before: 311809 Qi village of Huangshan Town, Zhuji City, Shaoxing, Zhejiang Patentee before: Zhuji sliding bearing factory |