CN105649924B - Oblique tray type compressor and its piston - Google Patents
Oblique tray type compressor and its piston Download PDFInfo
- Publication number
- CN105649924B CN105649924B CN201410686844.6A CN201410686844A CN105649924B CN 105649924 B CN105649924 B CN 105649924B CN 201410686844 A CN201410686844 A CN 201410686844A CN 105649924 B CN105649924 B CN 105649924B
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- China
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- piston
- cylinder
- swash plate
- type compressor
- crawler shoe
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Abstract
The purpose of the present invention is to provide a kind of oblique tray type compressor and its pistons, the grease channel between crawler shoe and piston are provided, in order to crawler shoe and piston sufficient lubrication.For the oblique disk type compressor piston for realizing the purpose, including piston seat and piston head, piston seat is equipped with the ball hole of installation crawler shoe, its main feature is that, piston head has the grease channel that ball hole bottom is penetrated into from its end face.
Description
Technical field
The present invention relates to the lubricating oil in oblique tray type compressor and its piston more particularly to oblique tray type compressor and its piston
Supply Structure.
Background technique
Lubricating oil a part in the swash plate chamber of existing oblique tray type compressor is deposited on swash plate chamber bottom, remaining dispersion
In the entire space of swash plate chamber, mist of oil is mixed to form with the refrigerant gas stirred by compressor movement mechanism.The oil of bottom is not
It is accessible to each rubbing surface, and the mist of oil in swash plate chamber is in irregular movement, only sub-fraction can penetrate into rubbing surface, moisten
Cunning is ineffective.
The rubbing surface between ball hole on crawler shoe and piston is located in swash plate chamber, and contact substantially spherical in shape between the two belongs to
In lubricating insufficient position, often there is abrasion.
Summary of the invention
The purpose of the present invention is to provide a kind of oblique tray type compressor and its pistons, provide the profit between crawler shoe and piston
Oil pathway, in order to crawler shoe and piston sufficient lubrication.
For the oblique disk type compressor piston for realizing the purpose, including piston seat and piston head, piston seat is equipped with installation and slides
The ball of shoe is cheated, its main feature is that, piston head has the grease channel that ball hole bottom is penetrated into from its end face.
The oblique disk type compressor piston, further feature are that the grease channel starts from the end of piston head
Face center, or coincidence parallel with piston axis.
The oblique disk type compressor piston, further feature are that the grease channel starts from piston head end face
At the end of instroke be aligned plate member exhaust outlet position.
The oblique disk type compressor piston, further feature are that piston head is symmetrical at the axial both ends of piston seat
Setting.
Oblique disk type compressor piston of the invention, including the cylinder being arranged in cylinder body, cylinder body, the swash plate being arranged in cylinder body,
The plate member of piston and cylinder ends setting in cylinder, piston includes piston seat and piston head, and piston seat is equipped with installation
The ball of crawler shoe is cheated, and swash plate rotates in the intracorporal swash plate chamber of cylinder and can connect piston by crawler shoe, and band piston is past in cylinder
Multiple movement, plate member have gas vent, its main feature is that, piston head has the lubricating oil for penetrating into ball hole bottom from its end face logical
Road, the gas in the instroke of piston head, cylinder are compressed by piston, and gas pressure therein is greater than the pressure of swash plate chamber,
A part of high pressure gas pours in grease channel, and crawler shoe is jacked up, to reduce the pressure between the crawler shoe and ball hole and cheat to ball
Carry out forced feed lubrication.
The oblique tray type compressor, further feature are that the grease channel starts from the end face of piston head
The heart, or coincidence parallel with piston axis.
The oblique tray type compressor, further feature be, the grease channel start from piston head end face
The position of the gas vent of plate member is directed at the end of instroke.
The oblique tray type compressor, further feature are that the oblique tray type compressor is bi-directional swash plate type compressor,
Piston head is symmetrical arranged at the axial both ends of piston seat.
When piston moves in the cylinder, cylinder alternately sucks and compresses discharging refrigerant gas, and the pressure in cylinder will
Refrigerant is pressed into lubrication channel, and the refrigerant temperature is lower, containing more lubricating oil, therefore can cheat to ball and carry out pressure profit
It is sliding, it can in time reduce the pressure with the work pace of air-breathing and exhaust, and then reduce frictional force between the two, reduce
Abrasion.
Detailed description of the invention
The above and other features of the present invention, property and advantage will pass through retouching with reference to the accompanying drawings and examples
It states and becomes readily apparent from, in which:
Fig. 1 is the cross-sectional view of the bi-directional swash plate type compressor of the embodiment of the present invention 1.
Fig. 2 is the right view of piston and plate member in Fig. 1.
Fig. 3 is the cross-sectional view of another impulse stroke of bi-directional swash plate type compressor in Fig. 1.
Fig. 4 is the cross-sectional view of the bi-directional swash plate type compressor of the embodiment of the present invention 2.
Fig. 5 is the right view of piston and plate member in Fig. 4.
Specific embodiment
The invention will be further described with attached drawing combined with specific embodiments below, elaborates in the following description more
Details to facilitate a thorough understanding of the present invention, still the present invention obviously can be come with a variety of other ways different from this description it is real
It applies, those skilled in the art can make similar popularization according to practical situations without violating the connotation of the present invention, drill
It unravels silk, therefore should not be limited the scope of the invention with the content of this specific embodiment.
Fig. 1 to Fig. 3 shows one embodiment of the present of invention, and Fig. 4 and Fig. 5 show another implementation of the invention
Example.It should be noted that these and subsequent other attached drawings are only as an example, it be not to be drawn according to the condition of equal proportion
System, and should not be construed as limiting in this, as the protection scope to actual requirement of the present invention.
Embodiment 1
It is the cross-sectional view of the existing bi-directional swash plate type compressor for Vehicular air-conditioning apparatus as shown in Figure 1, there is a pair
Front-bank rotor housing 12 and rear-bank rotor housing 13, bolt 16 is simultaneously tight by front-bank rotor housing 12 and rear-bank rotor housing 13, forms swash plate chamber 40.Drive shaft 11 is through oblique
Disk 5, forward thrust bearing 6A, back pressure bearing 6B, the rear end of forward thrust bearing 6A abut the front end of swash plate 5, back pressure bearing 6B
Front end abut swash plate 5 rear end.The front end of thrust bearing 6A is supported by cylinder body 12, and the rear end of reasoning bearing 6B is by rear-bank rotor housing 13
Support.When bolt 16 passes through front cover 14, front-bank rotor housing 12, rear-bank rotor housing 13 and rear cover 15 and tightens these components, front-bank rotor housing 12
The preceding stationary face of rear end, 13 front end of rear-bank rotor housing rear stationary face by forward thrust bearing 6A, back pressure bearing 6B and thrust bearing
Swash plate 5 between 6A, 6B clamps.Front/rear cover 14,15 is respectively equipped with suction chamber 32 and discharge chamber 31.Drive shaft 11 drives swash plate 5 to make
When rotary motion, 5 two sides of swash plate are cooperated by crawler shoe 19 and piston 20, and band piston 20 is reciprocating when swash plate 5 rotates, will
Refrigerant sucks cylinder 30A or 30B, and compression heel row is gone out cylinder 30B or 30A.
The end face of front-bank rotor housing 12 and rear-bank rotor housing 13 is equipped with plate member, only shows rear-bank rotor housing with appended drawing reference in Fig. 1
Plate member between 13 end face and rear cover 15, but to the explanation of the plate member on right side in Fig. 1, it is also suitable in Fig. 1 left
The explanation of the plate member i.e. between front-bank rotor housing 12 and front cover 14 of side.Plate member includes valve plate 33, suction valve chip 36, exhaust
Valve block 37.As shown in Fig. 2, valve plate 33 is equipped with suction hole 34, gas vent 35.The movement of the plate member in left side and the valve on right side
The movement of plate component is opposite.Piston 20 far from 33 direction of valve plate towards when moving, and suction valve chip 36 opens suction hole 34, cylinder
30A sucks gas (gas is discharged in cylinder 30B at this time).Towards when moving close to 33 direction of valve plate, exhaust valve plate 37 will be arranged piston 20
Stomata 35 is opened, and suction valve chip 36 closes suction hole 34.(cylinder 30A sucks gas at this time) is discharged from cylinder 30A in gas.
Piston 20 includes piston seat 21 and piston head 22, and piston head 22 is located at the axial sides of piston seat 21, piston seat 21
Ball hole 23 equipped with installation crawler shoe 19, the end face 24 of piston head 22 and ball cheat and are equipped with a grease channel 25 between 23 bottoms.
As shown in Fig. 2 the right view only individually taken out the plate member of piston 20 and right side in Fig. 1.Lubrication
Oily channel 25 is located at the center of 20 end face of piston, or coincidence parallel with 20 axis of piston, the grease channel 25 of the structure
Length it is shorter.
More sufficient lubricating oil is had in suction chamber 32, when piston 20 is in towards (such as Fig. 1 when front side movement, the i.e. direction F1
It is shown), rear side cylinder 30B is in suction stroke, and the gas in suction chamber 32 enters cylinder 30B.Front side cylinder 30A is in exhaust
Stroke, front side cylinder 30A pressure are greater than rear side cylinder 30B, and piston 20 is by gas pressure backward, therefore swash plate 5 is to piston
For 20 support force towards front side, the pressure between front side crawler shoe 19 and ball hole 23 is larger, between rear side crawler shoe 19 and ball hole 23
In vacant state, no pressure does not need to be lubricated.The pressure in rear side cylinder 20B can't be significantly greater than swash plate chamber at this time
40 pressure, therefore, the gas in cylinder 20B can't rapidly enter grease channel 25, do not generate lubrication to crawler shoe 19 and make
With.At this point, referring to situation as described later, it is to be understood that the pressure in the cylinder 20A of front side can be greater than the pressure of swash plate chamber 40
Power, therefore the gas in cylinder 20A can rapidly enter grease channel 25, generate lubricating action to the crawler shoe 19 of front side.
As shown in figure 3, rear side cylinder 30B is in instroke when piston 20 is in towards when rear side movement, the i.e. direction F2,
The gas of cylinder 30B is discharged to discharge chamber 31.Front side cylinder 30A is in suction stroke, and front side cylinder 30A pressure is less than rear side gas
Cylinder 30B, piston 20 by forward gas pressure, therefore swash plate 5 to the support force of piston 20 towards rear side, rear side crawler shoe 19 with
Generate and pressure and be gradually increased between ball hole 23, become vacant state between front side crawler shoe 19 and ball hole 23, rear side crawler shoe 19 with
It needs to be lubricated between ball hole 23.At this point, the refrigerant gas of rear side cylinder 30B rapidly enters lubricating oil under pressure
Channel 25, wherein a large amount of lubricating oil contained can generate lubrication forced lubrication to crawler shoe 19.
The gas of instroke cylinder 30A or 30B are compressed by piston 20, and gas pressure therein is greater than the pressure of swash plate chamber 40
Power, sub-fraction high pressure gas pour in grease channel 25, and crawler shoe 19 is jacked up, to reduce between the crawler shoe 19 and ball hole 23
Pressure.And crawler shoe and the maximum pressure in ball hole appear precisely at instroke side in the prior art.Therefore the embodiment can be with
The work pace of air-breathing and exhaust, in time reduce the pressure, and then reduce frictional force between the two, reduce abrasion.
Embodiment 2
The present embodiment continues to use the element numbers and partial content of previous embodiment, wherein adopting the phase that is denoted by the same reference numerals
Same or approximate element, and the explanation of same technique content is selectively omitted.Explanation about clipped can refer to
Previous embodiment, it is no longer repeated for the present embodiment.
On the basis of embodiment 1, as shown in Figure 4,5, embodiment 2 and the difference of embodiment 1 are that grease channel 25 is wanted
Ball hole 23 is extended to from the position of the corresponding piston head 22 of gas vent 35 of valve plate 33.Since grease channel 25 is in piston head 22
Instroke at the end of, be aligned with gas vent 35, the present embodiment in addition to realize to the forced feed lubrication of crawler shoe 19 other than, can also rise
To alleviate pressure at expulsion increase suddenly and to caused impact and noise.Pressure at expulsion increases to rapidly rated discharge from 0 when starting
Pressure, pressure variety is larger, the erratic fluctuations and vibration for causing exhaust valve plate 37 to be opened and closed.And close to the lubrication of gas vent 35
To the gas of 40 export section of swash plate chamber when oily channel can be appropriate, alleviate the fluctuation of pressure at expulsion near gas vent 35, reduces
The vibration of exhaust valve plate 37 reduces noise.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting the present invention, any this field skill
Art personnel without departing from the spirit and scope of the present invention, can make possible variation and modification.Therefore, it is all without departing from
The content of technical solution of the present invention, according to the technical essence of the invention any modification to the above embodiments, equivalent variations
And modification, it each falls within the protection scope that the claims in the present invention are defined.
Claims (2)
1. oblique tray type compressor, including the piston in the cylinder being arranged in cylinder body, cylinder body, the swash plate being arranged in cylinder body, cylinder with
And the plate member of cylinder ends setting, piston include piston seat and piston head, piston seat is equipped with the ball hole of installation crawler shoe, swash plate
Rotation can simultaneously connect piston by crawler shoe in the intracorporal swash plate chamber of cylinder, and band piston move back and forth in cylinder, plate member
With gas vent, which is characterized in that piston head has the grease channel for penetrating into ball hole bottom from its end face, in piston head
Instroke, the gas in cylinder are compressed by piston, and gas pressure therein is greater than the pressure of swash plate chamber, a part of high pressure gas
Grease channel is poured in, crawler shoe is jacked up, carries out forced feed lubrication, institute to reduce the pressure between the crawler shoe and ball hole and cheat to ball
Stating grease channel starts from the position for the gas vent that plate member is directed at the end of instroke of piston head end face.
2. oblique tray type compressor as described in claim 1, which is characterized in that the oblique tray type compressor is bi-directional swash plate type compression
Machine, piston head are symmetrical arranged at the axial both ends of piston seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686844.6A CN105649924B (en) | 2014-11-25 | 2014-11-25 | Oblique tray type compressor and its piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410686844.6A CN105649924B (en) | 2014-11-25 | 2014-11-25 | Oblique tray type compressor and its piston |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105649924A CN105649924A (en) | 2016-06-08 |
| CN105649924B true CN105649924B (en) | 2019-10-11 |
Family
ID=56480378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410686844.6A Expired - Fee Related CN105649924B (en) | 2014-11-25 | 2014-11-25 | Oblique tray type compressor and its piston |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105649924B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0526151A (en) * | 1991-07-16 | 1993-02-02 | Toyota Autom Loom Works Ltd | Hydraulic drive unit |
| JPH09287554A (en) * | 1996-04-23 | 1997-11-04 | Hitachi Constr Mach Co Ltd | Variable displacement swash plate type hydraulic rotating machine |
| JP2002310067A (en) * | 2001-04-10 | 2002-10-23 | Toyota Industries Corp | Compressor |
| JP5240311B2 (en) * | 2011-03-15 | 2013-07-17 | 株式会社豊田自動織機 | Cylinder block of piston type compressor and cylinder block processing method of piston type compressor |
| CN202300896U (en) * | 2011-05-31 | 2012-07-04 | 上海三电贝洱汽车空调有限公司 | Movement mechanism of swash plate compressor and mounting device thereof |
-
2014
- 2014-11-25 CN CN201410686844.6A patent/CN105649924B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN105649924A (en) | 2016-06-08 |
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Granted publication date: 20191011 Termination date: 20201125 |