CN207830138U - Bent axle, compressor pump and compressor - Google Patents
Bent axle, compressor pump and compressor Download PDFInfo
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- CN207830138U CN207830138U CN201820083392.6U CN201820083392U CN207830138U CN 207830138 U CN207830138 U CN 207830138U CN 201820083392 U CN201820083392 U CN 201820083392U CN 207830138 U CN207830138 U CN 207830138U
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- bent axle
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Abstract
The utility model is related to compressor fields, disclose a kind of bent axle, compressor pump and compressor, the bent axle includes shaft (1) and the push stopping part (2) being arranged on the shaft, the thrust surface of push stopping part (2) is towards the ends A of the shaft (1), thrust surface includes the first face (11) and the second face (12), and second face (12) is in an axial direction Scm in the projected area in the axial plane2, the capacity for being equipped with the compressor of bent axle is Vcm3And meet 0.009V ＜ S ＜ 0.54V, second face (12) is the face of lifting and includes first end and the second end raised relative to first end, the distance at first end ends A described in distance in the axial direction is Xmm, second end in axial direction the ends distance A distance be Ymm, and meeting 0 X≤4 ＜ Y, the direction in second face (12) from second end to first end is identical as the direction of rotation of bent axle.Bent axle provided by the present application can improve the frictional dissipation between push stopping part and supplementary bearing.
Description
Technical field
The utility model is related to compressor fields, more particularly to a kind of bent axle, compressor pump and compressor.
Background technology
In rotor-type compressor, friction power loss accounts for 8% of total power consumption or so, wherein the thrust surface of bent axle and supplementary bearing
Frictional dissipation between end face of flange accounts for the 3~6% of entire frictional dissipation, and due to being hardly formed hydrodynamic lubrication oil herein
Film, so the crankshaft thrust portion friction pair of compressor is worn frequent occurrence, or even failure.It is therefore desirable to design to existing knot
Structure is improved, and to reduce the friction power loss in crankshaft thrust portion, and reduces the secondary abrasion of friction, compressor is made to obtain higher energy
Effect and higher reliability.
Utility model content
The purpose of this utility model is to overcome frictional dissipation between bent axle of the existing technology and supplementary bearing is excessively high
The problem of, a kind of bent axle is provided.
To achieve the goals above, on the one hand the utility model provides a kind of bent axle, which includes that shaft and setting exist
Push stopping part on the shaft, the push stopping part has the thrust surface contacted for the supplementary bearing with compressor pump, described to stop
Pushing surface includes the first face and the second face towards the ends A of the shaft, the thrust surface, and first face is continuous plane and institute
Axial direction of first face perpendicular to the shaft is stated, second face is along the axial direction in the throwing in the axial plane
Shadow area is Scm2, the capacity for being equipped with the compressor of the bent axle is Vcm3, and meet 0.009V ＜ S ＜ 0.54V, it is described
Second face is the face of lifting and includes first end and the second end raised relative to the first end, and the first end is in the axis
The distance apart from the ends A is Xmm upwards, and the distance at second end ends A described in distance in the axis direction is Ymm, and
Meet 0 Y-X≤4 ＜, from the second end to the rotation side in the direction of the first end and the bent axle in second face
To identical.
Preferably, the bent axle includes the oil of the secondary fuel feeding of friction for being formed to the push stopping part and the supplementary bearing
Hole.
Preferably, the oil inlet of the oilhole is arranged on the wall surface of the central oil passage of the shaft.
Preferably, the oil outlet of the oilhole is arranged on second face.
Preferably, the shaft includes the bent axle countershaft between the ends A and the push stopping part, the bent axle countershaft
Including main part and auxiliary section, the latus rectum of the auxiliary section is less than described in the outside wall surface connection of the main part and the auxiliary section
The oil outlet in the second face, the oilhole is arranged in the outside wall surface of the auxiliary section, and the oil outlet along the axial direction in institute
The projection on thrust surface is stated to fall in second face.
Preferably, second face is continuous inclined-plane, plane where second face with perpendicular to described axial
Angle between plane is less than or equal to 30 °.
Preferably, second face is F stage terraces, and meets F >=2.
Preferably, it is formed with fillet between second face and first face.
The utility model second aspect provides a kind of compressor pump, which includes cylinder, base bearing, countershaft
It holds and runs through the cylinder with bent axle as described above, the bent axle, the base bearing and the supplementary bearing are set in the bent axle
Both sides that are upper and being located at the cylinder, first face and the thrust surface of the supplementary bearing offset.
The utility model second aspect provides a kind of compressor, which includes the compressor pump described in claim 9
Body.
Through the above technical solutions, when bent axle provided by the present application is used within the compressor, the first face of crankshaft thrust face
With the thrust plane-plane contact of supplementary bearing, and due between the both ends in the second face there are difference in height, the second of crankshaft thrust face
It is formed with gap between face and the thrust surface of supplementary bearing, in crank rotation, crankshaft thrust face and supplementary bearing 8 can be effectively reduced
Thrust surface between frictional dissipation, to reduce the frictional dissipation of compressor totality.
Description of the drawings
Fig. 1 is the schematic diagram according to the compressor pump of the preferred embodiments of the present invention；
Fig. 2 is the enlarged drawing at G in Fig. 1；
Fig. 3 is the vertical view according to the bent axle of the preferred embodiments of the present invention；
Fig. 4 is the vertical view according to the bent axle of the utility model another kind preferred embodiment；
Fig. 5 is provided with the vertical view of the bent axle of oilhole；
Fig. 6 is the sectional view according to the bent axle of the preferred embodiments of the present invention；
Fig. 7 is the sectional view according to the bent axle of the utility model another kind preferred embodiment.
Reference sign
1- shaft 2- push stopping part 3- oilhole 4- central oil passage 5- bent axle countershaft 6- cylinder 7- base bearing 8- supplementary bearings
The first faces 11- the second faces the 12- auxiliary sections 21- main part 22-
Specific implementation mode
Specific embodiment of the present utility model is described in detail below in conjunction with attached drawing.It should be understood that herein
Described specific implementation mode is only used for describing and explaining the present invention, and is not intended to limit the utility model.
The application provides a kind of bent axle, which includes shaft 1 and the push stopping part 2 that is arranged on the shaft 1, it is described only
Pushed section 2 has the thrust surface that is contacted for the supplementary bearing 8 with compressor pump, the thrust surface towards the ends A of the shaft 1,
The thrust surface includes the first face 11 and the second face 12, first face 11 be continuous plane and first face 11 perpendicular to
The axial direction of the shaft, second face 12 are in the projected area in the axial plane along the axial direction
Scm2, the capacity for being equipped with the compressor of the bent axle is Vcm3, and meet 0.009V ＜ S ＜ 0.54V, second face 12
For lifting face and include first end and the second end raised relative to the first end, the first end in the axial direction away from
It is Xmm with a distance from the ends A, the distance at second end ends A described in distance in the axis direction is Ymm, and meets 0 ＜
Y-X≤4, from the second end to the direction of rotation phase in the direction of the first end and the bent axle in second face 12
Together.
As depicted in figs. 1 and 2, the thrust surface that bent axle has and supplementary bearing 8 contacts, the push stopping part and supplementary bearing 8 of bent axle are total
It is secondary with friction is formed.Fig. 3-5 is mounted in the upward view of the bent axle in the compressor pump in Fig. 1.
In figure 3, the ends M are the second end in the second face 12, and N-terminal is the first end in the second face 12, since the second face 12 is lift
Rise face and between the ends M and N-terminal have difference in height, in the structure of the compressor pump shown in Fig. 1, the first of crankshaft thrust face
The thrust plane-plane contact in face and supplementary bearing 8, and between being formed between the second face of crankshaft thrust face and the thrust surface of supplementary bearing 8
Gap can effectively reduce the frictional dissipation between crankshaft thrust face and the thrust surface of supplementary bearing 8 in crank rotation, to drop
The low frictional dissipation of compressor totality.
In Fig. 1 and Fig. 3-Fig. 5, direction shown in arrow is the direction of crank rotation, wherein song provided by the present application
The direction that the thrust surface of axis should also meet in the second face 12 from second end to first end is identical as the direction of rotation of bent axle, i.e.,
In figure 3, the direction in the second face 12 from M end to N-terminal is consistent with the direction of rotation of the bent axle shown by arrow.
In this application, define the second face 12 is in the projected area in the axial plane along the axial direction
Scm2, the capacity for being equipped with the compressor of the bent axle is Vcm3, and define first end in the axial direction apart from the ends A away from
From for Xmm, the distance at second end ends distance A in axial direction is Ymm, H=Y-X, and 0 H≤4 ＜, in this case, in song
A gap appropriate can be generated between the push stopping part 2 and supplementary bearing 8 of axis, to effectively reduce crankshaft thrust face and supplementary bearing
Frictional dissipation between 8 thrust surface.Compared with prior art, in the compressor of the offer of the application between thrust surface and supplementary bearing
Frictional dissipation can reduce 1%-3% so that compressor efficiency promoted 1%-3%.
Wherein, bent axle includes the oilhole 3 of the secondary fuel feeding of friction for being formed to the push stopping part and the supplementary bearing 8, with
Lubricating oil film is formed between the push stopping part and supplementary bearing 8 of bent axle, to improve the effect of the lubrication between push stopping part and supplementary bearing 8
Fruit.
In Fig. 6 and structure shown in Fig. 7, lubricating oil is passed through along the direction of arrow in the central oil passage 4 of bent axle, oilhole 3
Oil inlet should be opened on the wall surface of central oil passage 4, to enable the lubricating oil in central oil passage 4 in crank rotation institute
Enter in oilhole 3 under the action of the centrifugal force of generation.
And in order to make the lubricating oil in oilhole 3 reach between push stopping part and supplementary bearing 8, as shown in figure 3, the oilhole 3 goes out
Hydraulic fluid port is arranged on the second face 12.As shown in fig. 6, oilhole 3 is extended to from the wall surface of central oil passage 4 on second face 12, from song
The lubricating oil that the ends A of axis enter in central oil passage 4 in the direction of the arrow enters caused by crank rotation under the action of centrifugal force
In oilhole 3, and the oil outlet of oilhole 3 is slipped to along oilhole 3 under gravity, therefore lubricating oil can be in bent axle
It is gathered between thrust surface and the thrust surface of supplementary bearing 8, and forms lubricating oil film, to reduce rubbing between bent axle and supplementary bearing 8
It wears consumption.
It should be noted that the shape of oilhole 3 is not limited to shape shown in fig. 6, oilhole 3 can also select other similar
Shape, as long as L-type, arc etc., as long as enabling to lubricating oil that the gravity of itself is utilized to reach the oil outlet on the second face 12 i.e.
It can.
In addition, oil outlet can not also be set up directly on the second face 12, it is preferable that the shaft includes being located at the A
Bent axle countershaft 5 between end and the push stopping part 2, the bent axle countershaft 5 include main part 21 and auxiliary section 22, the auxiliary section
22 latus rectum is less than the main part 21 and the outside wall surface of the auxiliary section 22 connects second face 12, and the oilhole 3 goes out
Hydraulic fluid port is arranged in the outside wall surface of the auxiliary section 22, and the oil outlet is fallen along projection of the axial direction on the thrust surface
In second face 12.
As shown in fig. 7, the auxiliary section 22 of bent axle countershaft 5 and the second face 12 border on, the oil outlet of oilhole 3 is arranged in auxiliary section
In 22 outside wall surface.Similarly, the lubricating oil in central oil passage 4 can enter in oilhole 3 and final under the influence of centrifugal force
The outer oil outlet outflow avoided from auxiliary section 22.
And in order to enable lubricating oil can reach in the gap between the push stopping part 2 of bent axle and supplementary bearing, oil outlet is along bent
The axial projection on thrust surface of axis is fallen in the second face 12.As shown in Fig. 2, the lubricating oil level flowed out from oil outlet is in second
The lower section in face 12, due to the dynamic pressure effect that crankshaft high-speed rotation generates, lubricating oil can be in the thrust in the second face 12 and supplementary bearing 8
Position accumulation between face, and lubricating oil film is formed, to reduce the frictional dissipation between bent axle and supplementary bearing 8.
Similarly, the outside wall surface of connection auxiliary section 22 and the oilhole 3 of central oil passage 4 are also not limited to show in Fig. 7
Shape, can equally select the other shapes such as L-type, arc.
Second face 12 can select structure appropriate, as shown in figure 3, the second face 12 is continuous inclined-plane, and the second face 12
The plane at place and the angle between bent axial plane are less than or equal to 30 °.I.e. in the structure of compressor pump
In, the angle between the second face 12 and the thrust surface of supplementary bearing 8 is less than or equal to 30 °, to ensure between bent axle and supplementary bearing
Gap will not be excessive, avoids the normal work for influencing bent axle.Certainly, the second face can also select step surface, as shown in figure 4, the
Two faces 12 are F stage terraces, and meet F >=2.
Preferably, fillet, i.e. the second face 12 and the first face 11 are formed between second face 12 and first face 11
Link position at rounding off.
It should be noted that in the thrust surface of the push stopping part 2 of the application, the first face 11 can be with 12 head and the tail of the second face
Connection, in this case, the first end and second end in the second face 12 forms fillet between the first face.
And in another scenario, thrust surface is separated by bent axle countershaft 5, with reference to structure shown in Fig. 3, the ends M and the first face
It connects between 11, is not connected between N-terminal and the first face 11, in this case the only connection between the ends M and the first face 11
Place forms fillet.
In addition, other side according to the present utility model, the utility model also provides a kind of compressor pump, the compression
Pump body includes cylinder 6, base bearing 7, supplementary bearing 8 and bent axle as described above, and the bent axle runs through the cylinder 6, the master
Bearing 7 and the supplementary bearing 8 are set on the bent axle and are located at the both sides of the cylinder 6, first face 11 and institute
The thrust surface for stating supplementary bearing 8 offsets.
In terms of third according to the present utility model, the utility model also provides a kind of compressor, which includes such as
The upper compressor pump.
Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail above in association with attached drawing
In this.In the range of the technology design of the utility model, a variety of simple variants can be carried out to the technical solution of the utility model.
It is combined in any suitable manner including each particular technique feature.In order to avoid unnecessary repetition, the utility model
Various combinations of possible ways are no longer separately illustrated.But these simple variants and combination equally should be considered as the utility model institute
Disclosure belongs to the scope of protection of the utility model.
Claims (10)
1. a kind of bent axle, which is characterized in that the bent axle includes shaft (1) and the push stopping part (2) being arranged on the shaft, described
Push stopping part (2) has the thrust surface that is contacted for the supplementary bearing (8) with compressor pump, and the thrust surface is towards the shaft
(1) the ends A, the thrust surface include the first face (11) and the second face (12), and first face (11) is continuous plane and institute
Axial direction of the first face (11) perpendicular to the shaft is stated, second face (12) is put down along the axial direction perpendicular to described axial
Projected area on face is Scm2, the capacity for being equipped with the compressor of the bent axle is Vcm3, and meet 0.009V ＜ S ＜
0.54V, second face (12) is the face of lifting and includes first end and the second end raised relative to the first end, described
The distance at first end ends A described in distance in the axial direction is Xmm, second end ends A described in distance in the axial direction
Distance is Ymm, and meets 0 Y-X≤4 ＜, in second face (12) from the second end to the direction of the first end with
The direction of rotation of the bent axle is identical.
2. bent axle according to claim 1, which is characterized in that the bent axle includes for the push stopping part and the pair
The oilhole (3) for the secondary fuel feeding of friction that bearing (8) is formed.
3. bent axle according to claim 2, which is characterized in that the oil inlet of the oilhole (3) is arranged in the shaft
On the wall surface of central oil passage (4).
4. bent axle according to claim 3, which is characterized in that the oil outlet of the oilhole (3) is arranged in second face
(12) on.
5. bent axle according to claim 3, which is characterized in that the shaft includes being located at the ends A and the push stopping part
(2) the bent axle countershaft (5) between, the bent axle countershaft (5) include main part (21) and auxiliary section (22), the auxiliary section (22)
Latus rectum be less than the outside wall surfaces of the main part (21) and the auxiliary section (22) and connect second face (12), the oilhole
(3) oil outlet is arranged in the outside wall surface of the auxiliary section (22), and the oil outlet along the axial direction in the thrust surface
On projection fall in second face (12).
6. bent axle according to claim 1, which is characterized in that second face (12) be continuous inclined-plane, described second
Plane where face (12) and the angle between the axial plane are less than or equal to 30 °.
7. bent axle according to claim 1, which is characterized in that second face (12) be F stage terraces, and meet F >=
2。
8. bent axle according to claim 1, which is characterized in that shape between second face (12) and first face (11)
At there is fillet.
9. compressor pump, which is characterized in that the compressor pump includes cylinder (6), base bearing (7), supplementary bearing (8) and right
It is required that the bent axle described in any one of 1-8, the bent axle runs through the cylinder (6), the base bearing (7) and the supplementary bearing
(8) it is set on the bent axle and is located at the both sides of the cylinder (6), first face (11) and the supplementary bearing (8)
Thrust surface offset.
10. compressor, which is characterized in that the compressor includes the compressor pump described in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820083392.6U CN207830138U (en) | 2018-01-17 | 2018-01-17 | Bent axle, compressor pump and compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820083392.6U CN207830138U (en) | 2018-01-17 | 2018-01-17 | Bent axle, compressor pump and compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207830138U true CN207830138U (en) | 2018-09-07 |
Family
ID=63393557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820083392.6U Active CN207830138U (en) | 2018-01-17 | 2018-01-17 | Bent axle, compressor pump and compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207830138U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060280A (en) * | 2021-12-08 | 2022-02-18 | 珠海凌达压缩机有限公司 | Crankshaft, pump body structure, compressor and air conditioner |
-
2018
- 2018-01-17 CN CN201820083392.6U patent/CN207830138U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114060280A (en) * | 2021-12-08 | 2022-02-18 | 珠海凌达压缩机有限公司 | Crankshaft, pump body structure, compressor and air conditioner |
| CN114060280B (en) * | 2021-12-08 | 2024-05-24 | 珠海凌达压缩机有限公司 | Crankshaft, pump body structure, compressor and air conditioner |
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| GR01 | Patent grant |