CN205841200U - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
- Publication number
- CN205841200U CN205841200U CN201620619516.9U CN201620619516U CN205841200U CN 205841200 U CN205841200 U CN 205841200U CN 201620619516 U CN201620619516 U CN 201620619516U CN 205841200 U CN205841200 U CN 205841200U
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- Prior art keywords
- bearing
- thrust bearing
- rolling
- eccentric part
- rotary compressor
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Abstract
The utility model discloses a kind of rotary compressor, rotary compressor includes: bent axle, and described bent axle is provided with eccentric part；Upper bearing (metal), described upper bearing sleeve is located on described bent axle and is positioned at the upside of described eccentric part；Lower bearing, described lower bearing sleeve is located on described bent axle and is positioned at the downside of described eccentric part；Thrust bearing, described thrust bearing is separately positioned between described upper bearing (metal) and described eccentric part and between described lower bearing and described eccentric part, thrust bearing described at least one of which is rolling thrust bearing, and described eccentric part has towards described rolling thrust bearing and the crankshaft thrust face that covers described rolling thrust bearing scroll zones.Thus, crankshaft thrust face can effectively support rolling thrust bearing, so that rolling thrust bearing each several part uniform force, such that it is able to extend the service life of rolling thrust bearing.
Description
Technical field
This utility model relates to Compressor Technology field, particularly relates to a kind of rotary compressor.
Background technology
In correlation technique, the space in housing can be divided into upper end according to different demands by the compressor of high-low pressure segmentation
High pressure lower end low pressure or high pressure upper end, lower end low pressure, but due to the original crankshaft thrust face of existence bent axle of height pressure reduction and cunning
Frictional force between dynamic bearing structure is multiplied, and compressor horsepower so can be caused to rise efficiency and decline, reliability decrease, in
It is that designer uses rolling thrust structure, but owing to crankshaft thrust face bias designs, thus cause and rolling thrust bearing
Contact surface is uneven, unbalance stress, and rolling thrust bearing is easily because stress is concentrated causes abrasion.
Utility model content
One of technical problem that this utility model is intended to solve in correlation technique the most to a certain extent.To this end, this reality
With novel proposition one rotary compressor, the rolling thrust bearing abrasion of this rotary compressor is less, such that it is able to extend
The service life of rolling thrust bearing.
According to rotary compressor of the present utility model, including: bent axle, described bent axle is provided with eccentric part；Upper bearing (metal),
Described upper bearing sleeve is located on described bent axle and is positioned at the upside of described eccentric part；Lower bearing, described lower bearing sleeve is located at described
On bent axle and be positioned at the downside of described eccentric part；Thrust bearing, described thrust bearing is separately positioned on described upper bearing (metal) and described
Between eccentric part and between described lower bearing and described eccentric part, thrust bearing described at least one of which is for rolling thrust shaft
Holding, described eccentric part has towards described rolling thrust bearing and the crankshaft thrust that covers described rolling thrust bearing scroll zones
Face.
According to rotary compressor of the present utility model, by arranging the song that can cover rolling thrust bearing scroll zones
Axle thrust surface, so that eccentric part can effectively support rolling thrust bearing, so that each portion of rolling thrust bearing
Divide uniform force, so that it is less to wear and tear between bearing thrust face and the crankshaft thrust face of rolling thrust bearing and then permissible
Extend the service life of rolling thrust bearing, the functional reliability of rotary compressor can be improved.
It addition, can also have a following additional technical feature according to rotary compressor of the present utility model:
In examples more of the present utility model, the surface area of described crankshaft thrust face is more than described rolling thrust bearing
Scroll zones area and the surface area less than described rolling thrust bearing.
In examples more of the present utility model, the surface area of described crankshaft thrust face is more than or equal to described rolling thrust shaft
The surface area held.
In examples more of the present utility model, described crankshaft thrust face is circular or similar round.
In examples more of the present utility model, described eccentric part includes the protrusion protruded towards described rolling thrust bearing
Portion, the surface towards described rolling thrust bearing of described protuberance constitutes described crankshaft thrust face.
In examples more of the present utility model, described upper bearing (metal) and/or described lower bearing have around described bent axle
Step groove, described rolling thrust bearing is embedded in described step groove.
In examples more of the present utility model, described rotary compressor also includes: cylinder and piston, and described cylinder is pacified
Being contained between described upper bearing (metal) and described lower bearing, described piston is arranged on described eccentric part and is arranged in described cylinder,
Described rolling thrust bearing is arranged between the inner surface of described upper bearing (metal) and described crankshaft thrust face and/or described lower bearing
Between inner surface and described crankshaft thrust face, wherein said piston be provided with dodge described rolling thrust bearing dodge groove.
In examples more of the present utility model, described rolling thrust bearing is two and is separately positioned on described upper bearing (metal)
And between described eccentric part and between described lower bearing and described eccentric part.
In examples more of the present utility model, described rolling thrust bearing is one and another described thrust bearing is
Sliding thrust bearing.
In examples more of the present utility model, described rotary compressor also includes: housing, described bent axle, described on
Bearing, described lower bearing and described thrust bearing are arranged in described housing, and described enclosure interior space is in the vertical direction
It is separated into higher-pressure region and low-pressure area.
Accompanying drawing explanation
Fig. 1 is the bent axle partial schematic diagram of the rotary compressor according to a kind of embodiment of this utility model；
Fig. 2 is the bent axle top view of the rotary compressor shown in Fig. 1；
Fig. 3 is the bent axle partial schematic diagram of the rotary compressor according to this utility model another kind embodiment；
Fig. 4 is the sectional view of the rotary compressor according to a kind of embodiment of this utility model；
Fig. 5 is the sectional view of the rotary compressor according to this utility model another kind embodiment；
Fig. 6 is the sectional view of the rotary compressor according to this utility model another embodiment.
Reference:
Rotary compressor 100；
Bent axle 10；Eccentric part 11；Protuberance 12；Upper bearing (metal) 20；Lower bearing 30；Rolling thrust bearing 40；Crankshaft thrust face
41；Step groove 50；Cylinder 60；Piston 70；Dodge groove 71；Housing 80.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings.Below by
The embodiment being described with reference to the drawings is exemplary, it is intended to be used for explaining this utility model, and it is not intended that new to this practicality
The restriction of type.
Below with reference to the accompanying drawings the rotary compressor 100 according to this utility model embodiment is described in detail.
Rotary compressor 100 according to this utility model embodiment may include that bent axle 10, upper bearing (metal) 20, lower bearing
30 and thrust bearing, as shown in figures 1 and 3, bent axle 10 is provided with eccentric part 11, upper bearing (metal) 20 is set on bent axle 10, and
And upper bearing (metal) 20 is positioned at the upside of eccentric part 11, lower bearing 30 is set on bent axle 10, and lower bearing 30 is positioned at eccentric part 11
Downside.
As Figure 4-Figure 6, rotary compressor 100 can also include cylinder 60 and piston 70, and cylinder 60 is arranged on
Between bearing 20 and lower bearing 30, piston 70 may be mounted on eccentric part 11, and piston 70 is arranged in cylinder 60, works as rotation
When driven by motor bent axle 10 in rotary compressor 100 rotates, eccentric part 11 can drive piston 70 rotate in cylinder 60 with
Compressed gas.
Thrust bearing can be two, two thrust bearings be separately positioned between upper bearing (metal) 20 and eccentric part 11 and under
Between bearing 30 and eccentric part 11, at least one of which thrust bearing is rolling thrust bearing 40, and eccentric part 11 has towards rolling
Dynamic thrust bearing 40 and the crankshaft thrust face 41 of covering rolling thrust bearing 40 scroll zones.Rolling thrust bearing 40 can include
Two pads and be arranged on the rolling member between two pads and retainer, rolling member can be ball.It is understood that
The region that rolling member is rolled is the scroll zones of rolling thrust bearing 40, and such eccentric part 11 rolls thrust shaft by covering
Hold 40 scroll zones, so that the crankshaft thrust face 41 of eccentric part 11 can effectively support rolling thrust bearing 40, can make
Obtain rolling thrust bearing 40 each several part uniform force in the course of the work, rolling thrust bearing 40 can be avoided to occur that stress is concentrated
The phenomenon of the accelerated wear test caused, and then the functional reliability of rolling thrust bearing 40 can be improved, rolling can be extended only
The service life of thrust bearing 40.
Two kind optional crankshaft thrust faces 41 are described in detail below chooses type.
According to an alternative embodiment of the present utility model, the surface area of crankshaft thrust face 41 can be more than rolling thrust shaft
Hold the scroll zones area of 40, and the surface area of crankshaft thrust face 41 is less than the surface area of rolling thrust bearing 40.Wherein, rolling
The region area that the scroll zones area i.e. rolling member of dynamic thrust bearing 40 is rolled, the surface area of rolling thrust bearing 40 i.e. rolls
The dynamic thrust bearing 40 surface area towards the pad of crankshaft thrust face 41.By rationally arranging the surface area of crankshaft thrust face 41,
So that crankshaft thrust face 41 effectively supports rolling thrust bearing 40.Wherein it is preferred to, the surface area of crankshaft thrust face 41 connects
The surface area of nearly rolling thrust bearing 40.
According to another alternative embodiment of the present utility model, the surface area of crankshaft thrust face 41 is more than or equal to rolling thrust
The surface area of bearing 40.Thus, crankshaft thrust face 41 necessarily covers the scroll zones of rolling thrust bearing 40, such that it is able to reduce
The production difficulty of eccentric part 11, can reduce the assembly difficulty between eccentric part 11 and rolling thrust bearing 40, can improve rotation
The functional reliability of rotary compressor 100.
Alternatively, as in figure 2 it is shown, crankshaft thrust face 41 is circular or similar round.It is understood that rolling thrust shaft
Hold 40 for circle, by crankshaft thrust face 41 being arranged to circle or similar round, can so that crankshaft thrust face 41 and roll
Cooperation between the bearing thrust face of thrust bearing 40, so that eccentric part 11 can effectively support rolling thrust bearing 40,
And then the service life of rolling thrust bearing 40 can be extended.
According to a specific embodiment of the present utility model, as shown in figures 1 and 3, eccentric part 11 can include towards rolling
The protuberance 12 that dynamic thrust bearing 40 protrudes, the surface towards rolling thrust bearing 40 of protuberance 12 constitutes crankshaft thrust face
41.Protuberance 12 can be arranged to disc-shaped structure, and the axis of the central axis of protuberance 12 and bent axle 10 can with conllinear,
Such that it is able to the cooperation being easy between crankshaft thrust face 41 and bearing thrust face.
Fit system between rolling thrust bearing 40 and upper bearing (metal) 20 or lower bearing 30 is described below in detail.
Wherein, rolling thrust bearing 40 can simply be one, and another one thrust bearing can be sliding thrust bearing.Should
Rolling thrust bearing 40 can be arranged between upper bearing (metal) 20 and eccentric part 11, and sliding thrust bearing is arranged on lower bearing 30 with inclined
Between heart portion 11, or this rolling thrust bearing 40 can be arranged between lower bearing 30 and eccentric part 11, sliding thrust bearing
It is arranged between upper bearing (metal) 20 and eccentric part 11.
Rolling thrust bearing 40 can also be two, and two rolling thrust bearings 40 are separately positioned on upper bearing (metal) 20 and bias
Between portion 11 and between lower bearing 30 and eccentric part 11.
Alternatively, upper bearing (metal) 20 and/or lower bearing 30 have the step groove 50 around bent axle 10, and rolling thrust bearing 40 is embedding
It is located in step groove 50.As shown in Figure 4, rolling thrust bearing 40 is arranged between eccentric part 11 and upper bearing (metal) 20, upper bearing (metal) 20
On be provided with the step groove 50 around bent axle 10, step groove 50 be annular in accommodate rolling thrust bearing 40, by arrange
Step groove 50, can improve the installation reliability of rolling thrust bearing 40, and can effectively dodge out the piston in cylinder 60
70, and then the functional reliability of rotary compressor 100 can be improved.
Or alternatively, rolling thrust bearing 40 be arranged between the inner surface of upper bearing (metal) 20 and crankshaft thrust face 41 and/
Or between the inner surface of lower bearing 30 and crankshaft thrust face 41, wherein piston 70 is provided with and dodges dodging of rolling thrust bearing 40
Groove 71.As it is shown in figure 5, rolling thrust bearing 40 is arranged on the crankshaft thrust face on the inner surface of upper bearing (metal) 20 and eccentric part 11
Between 41, the upper surface of piston 70 is provided with dodges groove 71.As shown in Figure 6, rolling thrust bearing 40 is arranged on lower bearing 30
Inner surface and eccentric part 11 on crankshaft thrust face 41 between, the lower surface of piston 70 is provided with dodges groove 71.By setting
Put and dodge groove 71, it is ensured that the rolling thrust bearing 40 cooperation reliability between eccentric part 11 and bearing, and permissible
Make between rolling thrust bearing 40 and piston 70 non-interference, thereby may be ensured that the reliable operation of rotary compressor 100
Property.
Alternatively, as shown in figures 3 to 6, rotary compressor 100 can also include: housing 80, bent axle 10, upper bearing (metal)
20, in lower bearing 30 and thrust bearing are arranged at housing 80, housing 80 inner space is separated into higher-pressure region in the vertical direction
And low-pressure area.Higher-pressure region may be located at the top of low-pressure area, or higher-pressure region may be located at the lower section of low-pressure area.By arranging height
Nip and low-pressure area, the functional reliability of the motor can being effectively improved in rotary compressor 100, and rolling can be forced
Recline closely between thrust bearing 40 and crankshaft thrust face 41, but have no effect on rolling thrust bearing 40 bearing thrust face and
Friction level between crankshaft thrust face 41, thereby may be ensured that the functional reliability of rotary compressor 100.
Rotary compressor 100 according to this utility model embodiment, can cover rolling thrust bearing 40 by arranging
The crankshaft thrust face 41 of scroll zones, so that eccentric part 11 can effectively support rolling thrust bearing 40, such that it is able to make
Obtain rolling thrust bearing 40 each several part uniform force, so that the bearing thrust face of rolling thrust bearing 40 and crankshaft thrust face
Wear and tear between 41 less, and then the service life of rolling thrust bearing 40 can be extended, rotary compressor 100 can be improved
Functional reliability.
In the description of this specification, reference term " embodiment ", " some embodiments ", " example ", " specifically show
Example " or the description of " some examples " etc. means to combine this embodiment or example describes specific features, structure, material or spy
Point is contained at least one embodiment of the present utility model or example.In this manual, the schematic table to above-mentioned term
State and be necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature are permissible
One or more embodiment in office or example combine in an appropriate manner.Additionally, in the case of the most conflicting, this area
Technical staff the feature of the different embodiments described in this specification or example and different embodiment or example can be entered
Row combines and combination.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-described embodiment is
Exemplary, it is impossible to it is interpreted as that those of ordinary skill in the art is in scope of the present utility model to restriction of the present utility model
In above-described embodiment can be changed, revise, replace and modification.
Claims (10)
1. a rotary compressor, it is characterised in that including:
Bent axle, described bent axle is provided with eccentric part；
Upper bearing (metal), described upper bearing sleeve is located on described bent axle and is positioned at the upside of described eccentric part；
Lower bearing, described lower bearing sleeve is located on described bent axle and is positioned at the downside of described eccentric part；
Thrust bearing, described thrust bearing be separately positioned between described upper bearing (metal) and described eccentric part and described lower bearing and
Between described eccentric part, thrust bearing described at least one of which is rolling thrust bearing,
Described eccentric part has towards described rolling thrust bearing and only covers the bent axle of described rolling thrust bearing scroll zones
Pushing surface.
Rotary compressor the most according to claim 1, it is characterised in that the surface area of described crankshaft thrust face is more than institute
State the scroll zones area of rolling thrust bearing and be less than the surface area of described rolling thrust bearing.
Rotary compressor the most according to claim 1, it is characterised in that the surface area of described crankshaft thrust face is more than
Surface area in described rolling thrust bearing.
Rotary compressor the most according to claim 1, it is characterised in that described crankshaft thrust face is circular or class circle
Shape.
Rotary compressor the most according to claim 1, it is characterised in that described eccentric part towards described rolling only includes
The protuberance that thrust bearing protrudes, the surface towards described rolling thrust bearing of described protuberance constitutes described crankshaft thrust face.
Rotary compressor the most according to claim 1, it is characterised in that described upper bearing (metal) and/or described lower bearing tool
The step groove around described bent axle, described rolling thrust bearing is had to be embedded in described step groove.
Rotary compressor the most according to claim 1, it is characterised in that also include: cylinder and piston, described cylinder is pacified
Being contained between described upper bearing (metal) and described lower bearing, described piston is arranged on described eccentric part and is arranged in described cylinder,
Described rolling thrust bearing is arranged between the inner surface of described upper bearing (metal) and described crankshaft thrust face and/or described lower bearing
Between inner surface and described crankshaft thrust face, wherein
Described piston be provided with dodge described rolling thrust bearing dodge groove.
Rotary compressor the most according to claim 1, it is characterised in that described rolling thrust bearing is two and difference
It is arranged between described upper bearing (metal) and described eccentric part and between described lower bearing and described eccentric part.
Rotary compressor the most according to claim 1, it is characterised in that described rolling thrust bearing be one and another
Individual described thrust bearing is sliding thrust bearing.
Rotary compressor the most according to claim 1, it is characterised in that also include: housing, described bent axle, described on
Bearing, described lower bearing and described thrust bearing are arranged in described housing, and described enclosure interior space is in the vertical direction
It is separated into higher-pressure region and low-pressure area.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620619516.9U CN205841200U (en) | 2016-06-20 | 2016-06-20 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620619516.9U CN205841200U (en) | 2016-06-20 | 2016-06-20 | Rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205841200U true CN205841200U (en) | 2016-12-28 |
Family
ID=58153261
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620619516.9U Active CN205841200U (en) | 2016-06-20 | 2016-06-20 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205841200U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952647A (en) * | 2016-06-20 | 2016-09-21 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN109209878A (en) * | 2018-10-25 | 2019-01-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft, pump assembly, rotary compressor and refrigeration equipment |
| CN109209878B (en) * | 2018-10-25 | 2024-05-07 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft, pump body assembly, rotary compressor and refrigeration equipment |
-
2016
- 2016-06-20 CN CN201620619516.9U patent/CN205841200U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105952647A (en) * | 2016-06-20 | 2016-09-21 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN109209878A (en) * | 2018-10-25 | 2019-01-15 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft, pump assembly, rotary compressor and refrigeration equipment |
| CN109209878B (en) * | 2018-10-25 | 2024-05-07 | 珠海格力节能环保制冷技术研究中心有限公司 | Crankshaft, pump body assembly, rotary compressor and refrigeration equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |