CN205715276U - The wear-resistant structure of motor bearing - Google Patents
The wear-resistant structure of motor bearing Download PDFInfo
- Publication number
- CN205715276U CN205715276U CN201620335074.5U CN201620335074U CN205715276U CN 205715276 U CN205715276 U CN 205715276U CN 201620335074 U CN201620335074 U CN 201620335074U CN 205715276 U CN205715276 U CN 205715276U
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- Prior art keywords
- bearing
- annular
- wearing layer
- wear
- resistant structure
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Abstract
This utility model provides the wear-resistant structure of a kind of motor bearing, it solves prior art construction complicated, expends material, and cost is high, and coefficient of friction is big, the technical problems such as service life is short.The wear-resistant structure of this motor bearing, inside circumference, there is annular protrusion in the middle part of bearing shell body, annular protrusion two ends are connected with first annular stage portion respectively in turn and with the second annular step thus form the expansion mouth become larger in bearing shell body end, upper half-bearing inner circumferential wall is provided with and lays respectively at annular protrusion, first annular stage portion and the upper wearing layer of the second annular step upper end, low brass inner circumferential wall is provided with and lays respectively at annular protrusion, first annular stage portion and the lower wearing layer of the second annular step lower end, and the case hardness of lower wearing layer is equal to or more than upper wearing layer.This utility model has simple in construction, and the abrasion of the interface of split-type structural is little, low cost, and coefficient of friction is little, even wearing, service life the advantage such as length.
Description
Technical field
This utility model belongs to field of mechanical technique, especially relates to a kind of motor bearing
Wear-resistant structure.
Background technology
Bearing shell is also " axle bush ", is the part that contacts with axle of sliding bearing, sliding bearing
During work, between bearing shell and rotating shaft, require have one layer of oil film the thinnest to play lubrication.As
Fruit, due to insufficient lubrication, exists for the state directly rubbed, rubs between bearing shell and rotating shaft
Wiping can produce the highest temperature and easily cause the damage of axle, so needing between rotating shaft and bearing shell
Sufficiently lubricated, and bearing shell is needed sufficiently wear-resistant with the contact surface of rotating shaft.Tradition
Bearing shell inwall be smooth, lubricating oil enters after bearing shell inwall and cannot store, and needs frequency
Numerous oil addition, connects owing to needing to add lubricating oil to the inside of rotating shaft and bearing shell
In contacting surface, this is the most past after making each oil addition need to split rotating shaft and bearing shell
Internal interpolation, whole process is loaded down with trivial details, makes troubles to user.In traditional bearing shell
Wall is completely covered wearing layer, but compares consuming material, relatively costly.Existing axle
Watt wear-resistant structure there is also: coefficient of friction is big, installs inconvenience, and wear resistance is poor,
The problems such as service life is short.
In order to solve the problem that prior art exists, people have carried out long-term exploration, have carried
Go out solution miscellaneous.Such as, Chinese patent literature discloses a kind of air cooling
Steam turbine generator bearing [application number: 200820090398.2], by bearing shell and bearing block two
Part composition, bearing shell is divided into upper half-bearing and low brass, upper lower bearing to fit together
Forming sphere, inside is passed through lubricating oil, and bearing block is processed by steel plate, for symmetry
Structure, has turnover oilhole in both sides, facilitates the installation of unit oil pipe line.Bearing
In Zuo, plate uses 180 ° of Full connected with low brass, makes the oil-feed tank on bearing shell and middle plate
Sphere forms an oil inlet passage closed.
Be inconvenient to add profit although such scheme to some extent solves existing bearing shell
The problem of lubricating oil, but the program still also exists: and structure is complicated, expends material, becomes
This height, coefficient of friction is big, installs inconvenience, service life short problem.
Summary of the invention
The purpose of this utility model is for the problems referred to above, it is provided that a kind of reasonable in design, knot
Structure is simple, the wear-resistant structure of the motor bearing of even wearing.
For reaching above-mentioned purpose, this utility model have employed following technical proposal: this motor
The wear-resistant structure of bearing shell, including mutually split forming the upper semiaxis of bearing shell body up and down
Watt and low brass, described upper half-bearing is connected by demountable structure with low brass,
There is inside circumference in the middle part of described bearing shell body annular protrusion, described annular protrusion two
End is connected with first annular stage portion and the second annular step in turn thus respectively at bearing shell
Body end forms the expansion mouth become larger, and described upper half-bearing inner circumferential wall sets
Have and lay respectively at annular protrusion, first annular stage portion and the second annular step upper end
Upper wearing layer, described low brass inner circumferential wall be provided with lay respectively at annular protrusion,
One annular step and the lower wearing layer of the second annular step lower end, and described under resistance to
The case hardness of mill layer is equal to or more than the case hardness of upper wearing layer.Annular protrusion,
The setting of one annular step and the second annular step makes this motor bearing be applicable to ladder
Axle；Owing to the inwall of low brass is affected by the gravity of rotating shaft, thus can be by more
Serious abrasion, therefore the case hardness of lower wearing layer is equal to or more than the surface of upper wearing layer
Hardness, the degree of wear making lower wearing layer is close with upper wearing layer, adds making of bearing shell
Use the life-span.
In the wear-resistant structure of above-mentioned motor bearing, the surface of described lower wearing layer
Hardness is more than the case hardness of upper wearing layer.
In the wear-resistant structure of above-mentioned motor bearing, described upper wearing layer with under resistance to
Mill layer is alloy-layer.
In the wear-resistant structure of above-mentioned motor bearing, described demountable structure includes
It is arranged on upper half-bearing outer wall one end and there is the first step of the first installing hole, described
Low brass outer wall one end is provided with has second installing hole corresponding with the first installing hole
Second step, and the first described installing hole and the second installing hole are by the first installation bolt
Being connected, described low brass is the most threaded has end to be resisted against the first installation bolt
On taper pin, be provided with the 3rd with the 3rd installing hole at the upper half-bearing outer wall other end
Rank, and the described low brass outer wall other end has and the 3rd corresponding the joining of installing hole
Close hole, and the 3rd described installing hole is fixedly linked with mating holes by screw.In employing
The demountable structure stated, upper half-bearing fixedly secures with low brass, is not susceptible to relatively
Mobile, lubricating oil is not easy to spill from the gap of upper half-bearing with low brass.
In the wear-resistant structure of above-mentioned motor bearing, described first installation bolt with
Screw is oppositely arranged up and down.
In the wear-resistant structure of above-mentioned motor bearing, described bearing shell body week is inwardly
Wall is provided with two and is mutually correspondingly arranged and lays respectively between upper half-bearing and low brass
Oil storage grooves, described low brass outer circumferential has and some is connected with oil storage grooves
And the oil-feed tank being obliquely installed, have inside described bearing shell body circumference some respectively with
Oil storage grooves is connected and is positioned at the arc oil groove in the middle part of annular protrusion.Oil-feed tank, oil storage are recessed
The setting of groove and arc oil groove makes lubricating oil good with bearing shell contact internal walls, and convenient interpolation
Lubricating oil.
In the wear-resistant structure of above-mentioned motor bearing, the middle part of described oil storage grooves
Groove depth to the groove depth of both sides taper into along bearing shell body axial direction, and described storage
The groove depth at the middle part of oil groove gradually becomes to the groove depth at two ends along bearing shell body circumferential direction
Little and described arc oil groove is connected with the end of oil storage grooves respectively.Use above-mentioned
Structure, it is more that lubricating oil is distributed in the place of serious wear, so that bearing shell inwall mill
Damage uniformly, add the service life of bearing shell.
Compared with prior art, the advantage of the wear-resistant structure of this motor bearing is:
Simple in construction, the interface abrasion of split-type structural is little, and with low cost, coefficient of friction is little,
Even wearing, service life is long.
Accompanying drawing explanation
Fig. 1 provides the complete section front view of this utility model embodiment.
What Fig. 2 provided this utility model embodiment partly cuts open top view.
Fig. 3 provides cuing open of the A direction cutting along Fig. 2 of this utility model embodiment
View.
In figure, bearing shell body 1, upper half-bearing 11, low brass 12, annular protrusion 13,
First annular stage portion the 14, second annular step 15, expansion mouth 16, detachably tie
Structure 2, first step 21, second step 23, first install bolt 25, taper pin 251,
3rd step 26, screw 29, upper wearing layer 31, lower wearing layer 32, oil storage grooves 4,
Oil-feed tank 5, arc oil groove 6.
Detailed description of the invention
As shown in Figure 1 to Figure 3, the wear-resistant structure of this motor bearing, including energy up and down
Mutually split forms upper half-bearing 11 and low brass 12, the upper semiaxis of bearing shell body 1
Watts 11 are connected by demountable structure 2 with low brass 12, all in the middle part of bearing shell body 1
Have annular protrusion 13 to inner side, annular protrusion 13 two ends are connected with first respectively in turn
Annular step 14 and the second annular step 15 thus formed in bearing shell body 1 end
The expansion mouth 16 become larger, and upper half-bearing 11 inner circumferential wall is provided with and lays respectively at ring
Shape protuberance 13, first annular stage portion 14 are upper resistance to the second annular step 15 upper end
Mill layer 31, low brass 12 inner circumferential wall is provided with and lays respectively at annular protrusion 13, first
Annular step 14 and the lower wearing layer 32 of the second annular step 15 lower end, and under resistance to
The case hardness of mill layer 32 is equal to or more than the case hardness of upper wearing layer 31, upper wear-resisting
Layer 31 and lower wearing layer 32 are alloy-layer.Annular protrusion 13, first annular stage portion
14 and second the setting of annular step 15 make this motor bearing be applicable to multidiameter；By
Inwall in low brass 12 is affected by the gravity of rotating shaft, thus can be by more serious
Abrasion, therefore the case hardness of lower wearing layer 32 is equal to or more than the table of upper wearing layer 31
Surface hardness, the degree of wear making lower wearing layer 32 is close with upper wearing layer 31, adds
The service life of bearing shell.
Specifically, demountable structure 2 includes being arranged on upper half-bearing 11 outer wall one end and tool
Have the first step 21 of the first installing hole, low brass 12 outer wall one end be provided with have with
The second step 23 of the second installing hole that the first installing hole is corresponding, and the first installing hole with
Second installing hole is connected by the first installation bolt 25, and low brass 12 radially screw thread is even
It is connected to the taper pin 251 that end is resisted against on the first installation bolt 25, at upper half-bearing 11
The outer wall other end is provided with the 3rd step 26 with the 3rd installing hole, and low brass 12
The outer wall other end has the mating holes corresponding with the 3rd installing hole, and the 3rd installing hole leads to
Crossing screw 29 to be fixedly linked with mating holes, first installs bolt 25 and screw about 29 phase
To setting.Upper half-bearing 11 fixedly secures with low brass 12, is not susceptible to relatively move
Dynamic, lubricating oil is not easy to spill from the gap of upper half-bearing 11 with low brass 12.
Further, bearing shell body 1 inner circumferential wall be provided with two be mutually correspondingly arranged and point
The not oil storage grooves 4 between upper half-bearing 11 and low brass 12, low brass
12 outer circumferentials have some oil-feed tanks 5 being connected with oil storage grooves 4 and being obliquely installed,
Have inside bearing shell body 1 circumference and some are connected with oil storage grooves 4 respectively and are positioned at annular
Arc oil groove 6 in the middle part of protuberance 13.Oil-feed tank 5, oil storage grooves 4 and arc oil groove 6
Setting make lubricating oil and bearing shell contact internal walls good, and facilitate oil addition.
Further, the groove depth at the middle part of oil storage grooves 4 is to the groove depth of both sides along bearing shell
Body 1 axial direction tapers into, and the groove depth at the middle part of oil storage grooves 4 is to two ends
Groove depth tapers into along bearing shell body 1 circumferential direction, and arc oil groove 6 respectively with oil storage
The end of groove 4 is connected.It is more that lubricating oil is distributed in the place of serious wear, from
And make bearing shell inner wall abrasion uniform, add the service life of bearing shell.
Specific embodiment described herein is only for example to this utility model spirit
Explanation.This utility model person of ordinary skill in the field can be to described concrete
Embodiment is made various amendment or supplements or use similar mode to substitute, but not
Spirit of the present utility model can be deviateed or surmount model defined in appended claims
Enclose.
Although the most more employing bearing shell body 1, upper half-bearing 11, low brass
12, annular protrusion 13, first annular stage portion the 14, second annular step 15, expansion
Oral area 16, demountable structure 2, first step 21, second step 23, first install spiral shell
Bolt 25, taper pin the 251, the 3rd step 26, screw 29, upper wearing layer 31, under wear-resisting
The terms such as layer 32, oil storage grooves 4, oil-feed tank 5, arc oil groove 6, but be not precluded from
Use the probability of other term.Use these terms to be only used to more easily to describe
With explanation essence of the present utility model；It is construed as any additional restriction all
It is contrary with this utility model spirit.
Claims (7)
1. a wear-resistant structure for motor bearing, including mutually split forming axle up and down
The upper half-bearing (11) of watt body (1) and low brass (12), described upper semiaxis
Watt (11) are connected by demountable structure (2) with low brass (12), and its feature exists
In, inside described bearing shell body (1) middle part circumference, there is annular protrusion (13), institute
Annular protrusion (13) two ends stated are connected with first annular stage portion (14) respectively in turn
With the second annular step (15) thus bearing shell body (1) end formed become larger
Expansion mouth (16), and described upper half-bearing (11) inner circumferential wall is provided with and lays respectively at
Annular protrusion (13), first annular stage portion (14) and the second annular step (15)
The upper wearing layer (31) of upper end, described low brass (12) inner circumferential wall is provided with respectively
It is positioned at annular protrusion (13), first annular stage portion (14) and the second annular step (15)
The lower wearing layer (32) of lower end, and the case hardness of described lower wearing layer (32) is equal to
Or the case hardness more than upper wearing layer (31).
The wear-resistant structure of motor bearing the most according to claim 1, its feature exists
In, the case hardness of described lower wearing layer (32) is more than the table of upper wearing layer (31)
Surface hardness.
The wear-resistant structure of motor bearing the most according to claim 2, its feature exists
In, described upper wearing layer (31) and lower wearing layer (32) are alloy-layer.
4. according to the wear-resistant structure of the motor bearing described in claim 1 or 2 or 3,
It is characterized in that, described demountable structure (2) includes being arranged on upper half-bearing (11)
Outer wall one end and there is the first step (21) of the first installing hole, described low brass
(12) outer wall one end is provided with and has the of second installing hole corresponding with the first installing hole
Two steps (23), and the first described installing hole and the second installing hole are by the first installation spiral shell
Bolt (25) is connected, described low brass (12) is the most threaded have end against
First, the taper pin (251) on bolt (25) is installed, at upper half-bearing (11) outer wall
The other end is provided with the 3rd step (26) with the 3rd installing hole, and described low brass
(12) the outer wall other end has the mating holes corresponding with the 3rd installing hole, and described
3rd installing hole is fixedly linked with mating holes by screw (29).
The wear-resistant structure of motor bearing the most according to claim 4, its feature exists
In, the first described installation bolt (25) is oppositely arranged up and down with screw (29).
The wear-resistant structure of motor bearing the most according to claim 1, its feature exists
In, described bearing shell body (1) inner circumferential wall is provided with two and is mutually correspondingly arranged and difference
The oil storage grooves (4) being positioned between upper half-bearing (11) and low brass (12), institute
Low brass (12) outer circumferential stated have some be connected with oil storage grooves (4) and
The oil-feed tank (5) being obliquely installed, has some inside described bearing shell body (1) circumference
It is connected with oil storage grooves (4) respectively and is positioned at the arc oil groove in the middle part of annular protrusion (13)
(6)。
The wear-resistant structure of motor bearing the most according to claim 6, its feature exists
In, the groove depth of the groove depth at the middle part of described oil storage grooves (4) to both sides is along bearing shell body
(1) axial direction tapers into, and the groove depth at the middle part of described oil storage grooves (4)
Groove depth to two ends tapers into along bearing shell body (1) circumferential direction, and described arc
Oil groove (6) end with oil storage grooves (4) respectively is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620335074.5U CN205715276U (en) | 2016-04-19 | 2016-04-19 | The wear-resistant structure of motor bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620335074.5U CN205715276U (en) | 2016-04-19 | 2016-04-19 | The wear-resistant structure of motor bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205715276U true CN205715276U (en) | 2016-11-23 |
Family
ID=57298272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620335074.5U Expired - Fee Related CN205715276U (en) | 2016-04-19 | 2016-04-19 | The wear-resistant structure of motor bearing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205715276U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740815A (en) * | 2017-11-07 | 2018-02-27 | 米巴精密零部件（中国）有限公司 | A kind of automobile bearing |
| CN113983069A (en) * | 2021-11-11 | 2022-01-28 | 中国船舶重工集团公司第七0三研究所 | High-speed heavy-load low-power-consumption dislocation molded line sliding support bearing |
-
2016
- 2016-04-19 CN CN201620335074.5U patent/CN205715276U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740815A (en) * | 2017-11-07 | 2018-02-27 | 米巴精密零部件（中国）有限公司 | A kind of automobile bearing |
| CN113983069A (en) * | 2021-11-11 | 2022-01-28 | 中国船舶重工集团公司第七0三研究所 | High-speed heavy-load low-power-consumption dislocation molded line sliding support bearing |
| CN113983069B (en) * | 2021-11-11 | 2024-04-09 | 中国船舶重工集团公司第七0三研究所 | High-speed heavy-load low-power consumption dislocation molded line sliding support bearing |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161123 Termination date: 20190419 |