CN202732343U - Rotary compressor - Google Patents
Rotary compressor Download PDFInfo
- Publication number
- CN202732343U CN202732343U CN 201220287444 CN201220287444U CN202732343U CN 202732343 U CN202732343 U CN 202732343U CN 201220287444 CN201220287444 CN 201220287444 CN 201220287444 U CN201220287444 U CN 201220287444U CN 202732343 U CN202732343 U CN 202732343U
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- China
- Prior art keywords
- slide plate
- expansion sleeve
- rotary compressor
- slide sheet
- compressor according
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Abstract
The utility model relates to a rotary compressor, wherein a motor and a compression assembly are arranged in a closed shell body, the motor comprises a stator and a rotor, the compression assembly comprises an air cylinder, a piston is arranged in the air cylinder, a slide sheet is arranged in a slide sheet groove of the air cylinder, the head of the slide sheet is connected with the outer periphery of the piston, the tail of the slide sheet is connected with a spring, a primary bearing and a secondary bearing which are used for supporting an eccentric crankshaft are respectively arranged at the two sides of the air cylinder, a slide sheet cavity is formed by the tail of the slide sheet, the air cylinder, the lower end face of the primary bearing, the upper end face of the secondary bearing and the shell body together, an expansion sleeve which is used for fixing the slide sheet is arranged in the slide sheet cavity, and pressure release grooves are formed in the expansion sleeve. A slide sheet cavity hole which is used for fixing the spring connected with the tail of the slide sheet is formed in the expansion sleeve. The diameter of the inner circle of the slide sheet cavity hole is d, the diameter of the tail end of the spring is D, and D-d is greater than 0 and less than 0.5 mm. The expansion sleeve and the slide sheet cavity are in interference fit. The rotary compressor has the advantages of simple structure, reliable performance and low manufacturing cost.
Description
Technical field
The utility model relates to a kind of rotary compressor.
Background technique
As HCFC, such as R22, and HFC, such as the alternative refrigerant of R410A or R407C, carbon-hydrogen refrigerant the most industry is paid close attention to.But, when carbon-hydrogen refrigerant is used for air-conditioner system, a very important problem is arranged, be exactly that it has high combustibility, must limit the refrigeration agent encapsulation amount of hydrocarbon air-conditioner system.Therefore, be necessary significantly to reduce the encapsulation amount of housing internal volume and the refrigerator oil of compressor, reducing the amount of refrigerant in the compressor housing, thereby so that the refrigeration agent encapsulation amount of air-conditioner system also reduced.
Low-pressure structure is helped in the inner setting of rotary compressor can effectively be reduced refrigerant content, yet, when rotary compressor inside is full low pressure, be badly in need of solving for the slide plate chamber sealing problem that is communicated with hyperbaric chamber.
The model utility content
The purpose of this utility model aims to provide a kind of rotary compressor of simple and reasonable, reliable performance, to overcome deficiency of the prior art.
A kind of rotary compressor by this purpose design, be provided with motor and compression assembly in the airtight housing, motor comprises stator and rotor, compression assembly comprises cylinder, piston is arranged in the cylinder, slide plate is arranged in the vane slot of cylinder, the head of slide plate and the periphery of piston are joined, afterbody and the spring of slide plate join, be used for supporting the main bearing of eccentric crankshaft and the both sides that supplementary bearing is separately positioned on cylinder, its structure characteristic is the afterbody of slide plate, cylinder, the lower end surface of main bearing, the upper-end surface of supplementary bearing and housing form the slide plate chamber jointly, are provided with in this slide plate chamber for the fixing expansion sleeve of slide plate, are provided with gas pressure relief slot on this expansion sleeve.
Be provided with the slide plate lumen pore of the spring that joins for afterbody fixing and slide plate on the described expansion sleeve.
The interior circular diameter of described slide plate lumen pore is d, and the diameter of spring tail end is D, and 0＜(D-d)＜0.5mm is arranged.
Interference fit between described expansion sleeve and the slide plate chamber.
Radial interference amount between described expansion sleeve and the slide plate chamber is φ, and the span of this φ is: 0.01 ~ 0.14mm.
The span of described φ is: 0.04 ~ 0.14mm.
The span of described φ is: 0.04 ~ 0.08mm.
Axial magnitude of interference between described expansion sleeve and the slide plate chamber is M, and M 〉=3mm is arranged.
The wall thickness of described expansion sleeve is δ, and 0.5mm≤δ≤3mm is arranged.
The utility model is by being provided with expansion sleeve in the slide plate chamber, be provided with gas pressure relief slot at expansion sleeve, the effect of this gas pressure relief slot mainly is to be convenient to expansion sleeve install, because expansion sleeve and slide plate chamber are interference fit, it is to rivet by larger external force that expansion sleeve is installed into the slide plate lumen pore, this moment, gas pressure relief slot can play Reducing distortion, guarantee the effect that expansion sleeve is in place, simultaneously, owing to diminish, also play a part sealing, therefore, can effectively solve the bad problem of slide plate sealing of rotary compressor, it has simple in structure, the advantage that reliable performance and fabricating cost are low.
Description of drawings
Fig. 1 is the utility model one embodiment's broken section structural representation.
Fig. 2 is the A place enlarged diagram among Fig. 1.
Fig. 3 is the enlarged diagram of spring.
Fig. 4 is the local enlarged diagram after expansion sleeve is installed.
Among the figure: 1 is low-voltage space, and 2 is the slide plate chamber, and 3 is the low pressure oil sump, and 4 is high pressure oil storage section, 6 is gas pressure relief slot, and 11 is upper shell, and 12 is main casing, and 13 is lower shell body, 14 is motor, and 15 is gas and oil separating plant, and 16 is sucking pipe, and 17 is outlet pipe, 18 is slide plate chamber fuel supply path, and 19 is oil supply component, and 21 is main bearing, and 22 is cylinder, 23 is piston, and 24 is slide plate, and 25 is supplementary bearing, 26 is eccentric crankshaft, 27 expansion sleeves, and 28 is spring.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
Referring to Fig. 1-Fig. 4, this rotary compressor, be provided with motor 14 and compression assembly in the airtight housing, motor 14 comprises stator and rotor, compression assembly comprises cylinder 22, piston 23 is arranged in the cylinder 22, slide plate 24 is arranged in the vane slot of cylinder 22, the periphery of the head of slide plate 24 and piston 23 is joined, the afterbody of slide plate 24 and spring 28 join, be used for supporting the main bearing 21 of eccentric crankshaft 26 and the both sides that supplementary bearing 25 is separately positioned on cylinder 22, the afterbody of slide plate 24, cylinder 22, the lower end surface of main bearing 21, the upper-end surface of supplementary bearing 25 and housing form slide plate chamber 2 jointly, be provided with in this slide plate chamber 2 for the fixing expansion sleeve 27 of slide plate 24, be provided with gas pressure relief slot 6 on this expansion sleeve 27.
Housing is made of jointly upper shell 11, main casing 12 and lower shell body 3, is provided with low pressure oil sump 3 in the low-voltage space 1 of enclosure interior, and this low pressure oil sump 3 is positioned at the bottom of housing; By the oil supply component 19 that is arranged on eccentric crankshaft 26 centers the lubricant oil in the low pressure oil sump 3 is supplied to
Do to form between each component of relative movement lubricated or/and seal action in the compression assembly.Low-voltage space 1 sealed separation in slide plate chamber 2 and the housing, between the exhaust of compressor and system high pressure side heat exchanger, be provided with gas and oil separating plant 15, after lubricant oil in the exhaust is separated by this gas and oil separating plant 15, accumulate in the high pressure oil storage section 4 of gas and oil separating plant 15 bottoms, be supplied in the slide plate chamber 2 by slide plate chamber fuel supply path 18, slide plate 24 is lubricated.
In the present embodiment, be provided with the slide plate lumen pore 27.1 of the spring 28 that joins for afterbody fixing and slide plate 24 on the expansion sleeve 27.
The interior circular diameter of slide plate lumen pore 27.1 is d, and the diameter of spring 28 tail ends is D, and 0＜(D-d)＜0.5mm is arranged.
Be interference fit between expansion sleeve 27 and the slide plate chamber 2.Wherein, the radial interference amount between expansion sleeve 27 and the slide plate chamber 2 is φ, and when the pressure in the slide plate chamber 2 was 1 ~ 14Mpa, the span of this φ was: 0.01 ~ 0.14mm; When the pressure in the slide plate chamber 2 was 1.5 ~ 12Mpa, the span of φ was: 0.04 ~ 0.14mm; When the pressure in the slide plate chamber 2 was 2 ~ 10Mpa, the span of φ was 0.04 ~ 0.08mm.
Axial magnitude of interference between expansion sleeve 27 and the slide plate chamber 2 is M, and M 〉=3mm is arranged.
In order to satisfy the rigidity after expansion sleeve 27 assembles and to guarantee that it has preferably sealability, the wall thickness of setting expansion sleeve 27 is δ, and 0.5mm≤δ≤3mm is arranged.
Claims (9)
1. rotary compressor, be provided with motor (14) and compression assembly in the airtight housing, motor (14) comprises stator and rotor, compression assembly comprises cylinder (22), piston (23) is arranged in the cylinder (22), slide plate (24) is arranged in the vane slot of cylinder (22), the periphery of the head of slide plate (24) and piston (23) is joined, the afterbody of slide plate (24) and spring (28) join, be used for supporting the main bearing (21) of eccentric crankshaft (26) and the both sides that supplementary bearing (25) is separately positioned on cylinder (22), the afterbody that it is characterized in that slide plate (24), cylinder (22), the lower end surface of main bearing (21), the upper-end surface of supplementary bearing (25) and housing form slide plate chamber (2) jointly, be provided with in this slide plate chamber (2) for the fixing expansion sleeve (27) of slide plate (24), be provided with gas pressure relief slot (6) on this expansion sleeve (27).
2. rotary compressor according to claim 1 is characterized in that being provided with on the described expansion sleeve (27) the slide plate lumen pore (27.1) of the spring (28) that joins for afterbody fixing and slide plate (24).
3. rotary compressor according to claim 1, the interior circular diameter that it is characterized in that described slide plate lumen pore (27.1) is d, the diameter of spring (28) tail end is D, and 0＜(D-d)＜0.5mm is arranged.
4. rotary compressor according to claim 1 is characterized in that interference fit between described expansion sleeve (27) and slide plate chamber (2).
5. rotary compressor according to claim 4 is characterized in that the radial interference amount between described expansion sleeve (27) and slide plate chamber (2) is φ, and the span of this φ is: 0.01 ~ 0.14mm.
6. rotary compressor according to claim 5 is characterized in that the span of described φ is: 0.04 ~ 0.14mm.
7. rotary compressor according to claim 6 is characterized in that the span of described φ is: 0.04 ~ 0.08mm.
8. rotary compressor according to claim 4 is characterized in that the axial magnitude of interference between described expansion sleeve (27) and slide plate chamber (2) is M, and M 〉=3mm is arranged.
9. according to claim 1 to 8 arbitrary described rotary compressors, it is characterized in that the wall thickness of described expansion sleeve (27) is δ, 0.5mm≤δ≤3mm is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220287444 CN202732343U (en) | 2012-06-18 | 2012-06-18 | Rotary compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220287444 CN202732343U (en) | 2012-06-18 | 2012-06-18 | Rotary compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202732343U true CN202732343U (en) | 2013-02-13 |
Family
ID=47658047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220287444 Expired - Lifetime CN202732343U (en) | 2012-06-18 | 2012-06-18 | Rotary compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202732343U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252910A (en) * | 2017-11-30 | 2018-07-06 | 刘悦吟 | A kind of compressor |
-
2012
- 2012-06-18 CN CN 201220287444 patent/CN202732343U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108252910A (en) * | 2017-11-30 | 2018-07-06 | 刘悦吟 | A kind of compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130213 |