CN202065349U - Self-lubricating insulation bearing bush - Google Patents
Self-lubricating insulation bearing bush Download PDFInfo
- Publication number
- CN202065349U CN202065349U CN2011201259462U CN201120125946U CN202065349U CN 202065349 U CN202065349 U CN 202065349U CN 2011201259462 U CN2011201259462 U CN 2011201259462U CN 201120125946 U CN201120125946 U CN 201120125946U CN 202065349 U CN202065349 U CN 202065349U
- Authority
- CN
- China
- Prior art keywords
- bearing shell
- self
- bearing bush
- semicircular ring
- lubricating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Motor Or Generator Frames (AREA)
- Sliding-Contact Bearings (AREA)
Abstract
A self-lubricating insulation bearing bush includes a bush body (1), which comprises two semi-circular annular bodies (11) buckled together; a plurality of insulation blocks (2) are arranged on the peripheral edge of the bush body (1), and are placed on a bearing bush base; a plurality of pits (111) are formed on the semi-circular annular bodies (11); and graphite (3) is nested and fixed in the pits (111). The self-lubricating insulation bearing bush avoids the generation of static sparks, and meanwhile oil filling is not required, so that the self-lubricating insulation bearing bush is particularly suitable for use of motors in middle and small household electrical appliances.
Description
Technical field:
The utility model relates to the motor component technical field, more specifically to a kind of bearing shell of antistatic motor.
Background technique:
The inner ring surface of bearing shell of the prior art generally all is level and smooth disc; for bearing can successfully be rotated; leave little gap between bearing and the bearing shell; the lubricant oil that reinjects forms the kinetic pressure oil film and protects bearing and bearing shell; but the impurity in the lubricant oil can be pulled bearing and bearing shell surface, and causes whole bearing bush system to be scrapped.
Electric machine main shaft can produce influence electricity in the high speed rotating process, bearing shell, pedestal and ground are connected as a single entity, and between main shaft and bearing shell, only leave very little gap, so very easily be linked to be loop or disconnection between main shaft, bearing shell, pedestal and the ground, under this state, easily produce electrical spark between main shaft and the bearing shell, and the energy of electrical spark is quite powerful, can punctures the wear-resistant alloy layer on main shaft and bearing shell surface and cause the bearing bush system damage.
Motor discomfort in some small household appliances products is combined into the motor bearing oiling, also needs to prevent simultaneously the static spark initiation fire, so just needs a kind of need not to oil, and does not produce the bearing shell of static spark again.
The model utility content:
The purpose of this utility model is exactly the deficiency at prior art, and a kind of self-lubricating insulated bearing shell is provided, and it can not produce static spark, simultaneously need not oiling, and the motor that is particularly suitable in the middle-size and small-size household appliances uses.
Technology solution of the present utility model is as follows:
A kind of self-lubricating insulated bearing shell comprises a watt body, and watt body is snapped together by two semicircular ring bodies to be formed, and a watt external periphery is provided with some collets, and collets place on the bearing shell pedestal; Form several recesses on the semicircular ring body, graphite is nested to be fixed in this recess.
Form on the described semicircular ring body and accommodate nest, collets sleeve and be bonded in this and accommodate in the nest.
Form the cooling channel in the described semicircular ring body, the cooling channel is U type plate-like, and the cooling channel connects cooling circulating water.
The beneficial effects of the utility model are:
1, it need not lubricant oil, and the thing that does not exist impurity in the lubricant oil can pull bearing and bearing shell surface takes place.
2, it is connected with the bearing shell pedestal by collets, main shaft, bearing shell, pedestal and ground just can not constitute a ground loop, when such structure produces static at motor, electrical spark be can not produce between bearing shell and the main shaft, spark erosion main shaft and bearing shell surface avoided.
3, its motor of being particularly suitable in the middle-size and small-size household electric appliance uses, long service life, maintenances of need not changing oil, can also bearing shell and main shaft between can not produce electrical spark, the possibility of minimizing electrical spark initiation fire.
4, for the higher motor of rotating speed, can in watt body, the cooling channel be set, logical recirculated cooling water in the working life of guaranteeing bearing shell, burns in order to avoid bearing shell is overheated.
Description of drawings:
Fig. 1 is embodiment 1 a structural representation
Fig. 2 is the schematic perspective view of single semicircle ring body among the embodiment 1
Fig. 3 is embodiment 2 a structural representation
Among the figure: 1, watt body; 2, collets; 3, graphite; 11, semicircular ring body; 110, cooling channel; 111, recess; 112, accommodate nest.
Embodiment:
Embodiment 1: see shown in Fig. 1,2 that a kind of self-lubricating insulated bearing shell comprises watt body 1, watt body 1 is snapped together by two semicircular ring bodies 11 to be formed, and watt body 1 outer periphery are provided with some collets 2, and collets 2 place on the bearing shell pedestal; Form several recesses 111 on the semicircular ring body 11, graphite 3 nested being fixed in this recess 111.
Form on the described semicircular ring body 11 and accommodate nest 112, collets 2 sleeves and be bonded in this and accommodate in the nest 112.
Working principle: prior art need be used lubricant oil, and the utility model is to adopt graphite to carry out selflubricating, need not lubricant oil, does not exist impurity in the lubricant oil can pull the thing generation on bearing and bearing shell surface.
Place by collets 2 and to realize on the bearing shell pedestal that main shaft, bearing shell, pedestal and ground can not constitute a ground loop, realize like this avoiding producing electrical spark between bearing shell and the main shaft.
Claims (3)
1. a self-lubricating insulated bearing shell comprises a watt body (1), and watt body (1) is snapped together by two semicircular ring bodies (11) to be formed, and it is characterized in that: watt body (1) outer periphery are provided with some collets (2), and collets (2) place on the bearing shell pedestal; Form several recesses (111) on the semicircular ring body (11), graphite (3) is nested to be fixed in this recess (111).
2. a kind of self-lubricating insulated bearing shell according to claim 1 is characterized in that: form on the semicircular ring body (11) and accommodate nest (112), collets (2) sleeve and be bonded in this and accommodate in the nest (112).
3. a kind of self-lubricating insulated bearing shell according to claim 1 is characterized in that: form cooling channel (110) in the semicircular ring body (11), cooling channel (110) are U type plate-like, and cooling channel (110) connect cooling circulating water.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201259462U CN202065349U (en) | 2011-04-26 | 2011-04-26 | Self-lubricating insulation bearing bush |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201259462U CN202065349U (en) | 2011-04-26 | 2011-04-26 | Self-lubricating insulation bearing bush |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202065349U true CN202065349U (en) | 2011-12-07 |
Family
ID=45059212
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201259462U Expired - Fee Related CN202065349U (en) | 2011-04-26 | 2011-04-26 | Self-lubricating insulation bearing bush |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202065349U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307099A (en) * | 2013-05-24 | 2013-09-18 | 吴彩霞 | Sliding bearing of motor |
-
2011
- 2011-04-26 CN CN2011201259462U patent/CN202065349U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103307099A (en) * | 2013-05-24 | 2013-09-18 | 吴彩霞 | Sliding bearing of motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111207 Termination date: 20120426 |