CN101334031B - Compressor displacement regulating structure - Google Patents
Compressor displacement regulating structure Download PDFInfo
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- CN101334031B CN101334031B CN200710043232A CN200710043232A CN101334031B CN 101334031 B CN101334031 B CN 101334031B CN 200710043232 A CN200710043232 A CN 200710043232A CN 200710043232 A CN200710043232 A CN 200710043232A CN 101334031 B CN101334031 B CN 101334031B
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- volume ratio
- adjusting
- connecting rod
- piston
- capacity
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Abstract
The invention relates to a capacity adjusting oil hydraulic cylinder in the capacity adjusting structure of the compressor. The capacity adjusting oil hydraulic cylinder comprises a rotor, a capacityadjusting piston rod, a capacity adjusting piston, a capacity adjusting oil hydraulic cylinder, an exhaust volume and a capacity adjusting sliding block; the capacity adjusting oil hydraulic cylinderalso comprises a volume ratio adjusting connecting rod, a volume ratio adjusting screw rod and a volume ratio adjusting seat; the volume ratio adjusting seat is arranged between the capacity adjustingpiston rod and the capacity adjusting piston and connected with the capacity adjusting oil hydraulic cylinder into a whole; the volume ratio adjusting seat comprises the volume ratio adjusting connecting rod vertically connected at one end of the capacity adjusting piston; both ends of the volume ratio adjusting connecting rod are closely contacted with the upper part and the lower part of the volume ratio adjusting seat; the volume ratio adjusting screw rod connected with the volume ratio adjusting connecting rod is arranged at the lower part of the volume ratio adjusting connecting rod; oneend of the volume ratio adjusting screw rod is closely contacted with the right side of the volume ratio adjusting seat, the other end penetrates through the left side of the volume ratio adjusting seat and is closely contacted with the volume ratio adjusting seat. The invention has the advantage that the compressor can operate under both of the air conditioning operating condition at the lower volume ratio and the low temperature operating condition at the greater volume ratio.
Description
Technical field
The present invention relates to a kind of compressor displacement regulating structure.
Background technique
Compressor is a kind of gas to be compressed to high pressure from low pressure, kinetic energy is converted to a kind of machine of potential energy.Be mainly used in refrigerating field.
As seen from Figure 1: compressor generally is made up of oil hydraulic cylinder 1, bearing support 2, casing 3, motor end cap 4.And displacement regulating structure generally is made up of the oil circuit in oil hydraulic cylinder 1 and the casing 3; The effect of displacement regulating structure is to regulate aspirated volume for the variation according to load, avoids unnecessary energy output, to reach purpose of energy saving.
As seen from Figure 2: generally transfer piston rod 12, hold and transfer piston 13, displacement regulating oil-hydraulic cylinder 14, delivery space chamber 17, displacement-regulating sliding piece 18 to form by rotor 11, appearance; During compressor loads, charge into refrigeration oil in the oil hydraulic cylinder, oil pressure promotes piston toward moving to right, and runs into the oil hydraulic cylinder right side until piston, and compressor is fully loaded.Piston moves right together by piston rod 2 drive slide blocks in this process, the compressor full load, and the slide block right side reaches maximal inspiratory capacity in the rotor right side at grade.This kind design can only be used on the compressor of fixing operating mode, but in other systems such as cryogenic system, because the variation meeting of operating mode is bigger, use fixed volume than (volume ratio of compressor (Vi) defines: the ratio of aspirated volume and delivery space) can cause the phenomenon of insufficient compression and overcompression, as shown in Figure 3.Volume ratio directly influences interior compression ratio.
Summary of the invention
The technical issues that need to address of the present invention have provided a kind of compressor displacement regulating structure, are intended to solve the above problems.
In order to solve the problems of the technologies described above, the present invention is achieved by the following technical solutions:
The present invention includes: rotor, appearance are transferred piston rod, are held and transfer piston, displacement regulating oil-hydraulic cylinder, delivery space chamber and displacement-regulating sliding piece; Also comprise: volume ratio is adjusted connecting rod, volume ratio adjusts screw rod and volume ratio is adjusted seat; Described volume ratio adjustment seat be placed in described appearance transfer piston rod and described appearance transfer between the piston and with the fusing of described displacement regulating oil-hydraulic cylinder; Comprising in described volume ratio adjustment seat with described appearance transfers the described volume ratio of an end vertical connection of piston to adjust connecting rod; Two ends that described volume ratio is adjusted connecting rod connect airtight with the upper and lower part of described volume ratio adjustment seat respectively and touch; Adjusting the bottom of connecting rod in described volume ratio settles a connected described volume ratio to adjust screw rod; The right side that described volume ratio is adjusted screw rod one end and described volume ratio adjustment seat connect airtight touch, the other end passes the left side of described volume ratio adjustment seat and connect airtight with it and to touch;
Compared with prior art, the invention has the beneficial effects as follows: compressor be may operate in than the air conditioning condition of short volume ratio and the worst cold case of big volume ratio.
Description of drawings
Fig. 1 is the structural representation of compressor;
Fig. 2 is a displacement regulating structure structural representation in the prior art;
Fig. 3 is the volume ratio plotted curve that adopts the compressor of prior art;
Fig. 4 is a structural representation of the present invention;
Fig. 5 is the volume ratio plotted curve that adopts compressor of the present invention;
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in further detail:
As seen from Figure 4: the present invention includes: rotor 11, appearance are transferred piston rod 12, are held and transfer piston 13, displacement regulating oil-hydraulic cylinder 14, delivery space chamber 17 and displacement-regulating sliding piece 18; Also comprise: volume ratio is adjusted connecting rod 15, volume ratio adjusts screw rod 16 and volume ratio is adjusted seat 19; Described volume ratio adjustment seat 19 be placed in described appearance transfer piston rod 12 and described appearance transfer between the piston 13 and with the fusing of described displacement regulating oil-hydraulic cylinder 14; Comprising in described volume ratio adjustment seat 19 with described appearance transfers the described volume ratio of an end vertical connection of piston 13 to adjust connecting rod 15; Two ends that described volume ratio is adjusted connecting rod 15 connect airtight with the upper and lower part of described volume ratio adjustment seat 19 respectively and touch; Adjusting the bottom of connecting rod 15 in described volume ratio settles a connected described volume ratio to adjust screw rod 16; The right side that described volume ratio is adjusted screw rod 16 1 ends and described volume ratio adjustment seat 19 connect airtight touch, the other end passes the left side of described volume ratio adjustment seat 19 and connect airtight with it and to touch.
The present invention adjusts screw rod by the rotation volume ratio and adjusts the position that volume ratio is adjusted connecting rod, and the drive volume ratio that turns clockwise is adjusted connecting rod and moved right, and drives volume ratio counterclockwise and adjusts connecting rod to moving to left.During compressor loads, charge into refrigeration oil in the oil hydraulic cylinder, oil pressure makes to hold transfers piston toward moving to right, and drives displacement-regulating sliding piece together toward moving right by holding the accent piston rod, transfers piston to run into volume ratio adjustment connecting rod until holding, and this moment, compressor was in full load condition.When volume ratio was adjusted connecting rod and is in position, the left side, delivery space minimum, volume ratio reached 4.8, and when adjusting to position, the right side, delivery space maximum, volume ratio are 2.2.Volume adjusted can make connecting rod rest on the arbitrary position than adjusting screw rod, thereby realizes according to the most energy-conservation Vi value of different regulating working conditions, as shown in Figure 5.
Claims (1)
1. compressor displacement regulating structure, it comprises: rotor, hold and transfer piston rod, hold and transfer piston, displacement regulating oil-hydraulic cylinder, delivery space chamber and displacement-regulating sliding piece; It is characterized in that also comprising: volume ratio is adjusted connecting rod, volume ratio adjusts screw rod and volume ratio is adjusted seat; Described volume ratio adjustment seat is placed between described appearance accent piston rod and the described appearance accent piston and with described displacement regulating oil-hydraulic cylinder and fuses; Comprising in described volume ratio adjustment seat with described appearance transfers the described volume ratio of an end vertical connection of piston to adjust connecting rod; Two ends that described volume ratio is adjusted connecting rod connect airtight with the upper and lower part of described volume ratio adjustment seat respectively and touch; Adjusting the bottom of connecting rod in described volume ratio settles a connected described volume ratio to adjust screw rod; The right side that described volume ratio is adjusted screw rod one end and described volume ratio adjustment seat connect airtight touch, the other end passes the left side of described volume ratio adjustment seat and connect airtight with it and to touch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710043232A CN101334031B (en) | 2007-06-29 | 2007-06-29 | Compressor displacement regulating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710043232A CN101334031B (en) | 2007-06-29 | 2007-06-29 | Compressor displacement regulating structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101334031A CN101334031A (en) | 2008-12-31 |
| CN101334031B true CN101334031B (en) | 2010-05-19 |
Family
ID=40196831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710043232A Active CN101334031B (en) | 2007-06-29 | 2007-06-29 | Compressor displacement regulating structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101334031B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101892987A (en) * | 2010-07-06 | 2010-11-24 | 阜新金昊空压机有限公司 | Stepless pressure regulation type air compressor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4610612A (en) * | 1985-06-03 | 1986-09-09 | Vilter Manufacturing Corporation | Rotary screw gas compressor having dual slide valves |
| EP0464316B1 (en) * | 1990-06-30 | 1994-09-07 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Screw compressor |
| CN201065833Y (en) * | 2007-06-29 | 2008-05-28 | 上海汉钟精机股份有限公司 | Compressor capacity regulating structure oil cylinder |
-
2007
- 2007-06-29 CN CN200710043232A patent/CN101334031B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4610612A (en) * | 1985-06-03 | 1986-09-09 | Vilter Manufacturing Corporation | Rotary screw gas compressor having dual slide valves |
| EP0464316B1 (en) * | 1990-06-30 | 1994-09-07 | KABUSHIKI KAISHA KOBE SEIKO SHO also known as Kobe Steel Ltd. | Screw compressor |
| CN201065833Y (en) * | 2007-06-29 | 2008-05-28 | 上海汉钟精机股份有限公司 | Compressor capacity regulating structure oil cylinder |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101334031A (en) | 2008-12-31 |
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