CN103175357B - On-line regulation device of expansion machine of split type stirling cryocooler - Google Patents
On-line regulation device of expansion machine of split type stirling cryocooler Download PDFInfo
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- CN103175357B CN103175357B CN201310108126.6A CN201310108126A CN103175357B CN 103175357 B CN103175357 B CN 103175357B CN 201310108126 A CN201310108126 A CN 201310108126A CN 103175357 B CN103175357 B CN 103175357B
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- seat
- decompressor
- adjusting rod
- self sealss
- split type
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Abstract
The invention discloses an on-line regulation device of an expansion machine of a split type stirling cryocooler. The on-line regulation device comprises a regulating stem, wherein one end of the regulating stem can be connected with a spring fixing seat of the expansion machine, a self-sealing seat is installed on the periphery of the regulating stem, an outer fixing seat is installed on the periphery of the self-sealing seat, and the outer fixing seat is provided with a bolt hole which is used for being connected with an air cylinder of the expansion machine; and the other end of the regulating stem is stretched out of the end portion of the outer fixing seat and the end portion of the self-sealing seat to form a stretched regulating portion. The on-line regulation device can achieve on-line parameter regulation during testing processes of the cryocooler, can improve debugging efficiency, shortens the development cycle of the stirling cryocooler, and is simple in structure, convenient to operate and low in manufacturing cost.
Description
Technical field
The present invention relates to a kind of on-line control device, specifically refer to the on-line control device that can be applicable to Split type Stirling refrigerating machine decompressor.
Background technology
Sterlin refrigerator is the gas recuperative closed circuit refrigeration machine by reverse Stirling cycle work.Advantages such as there is compact conformation, operating temperature range is wide, starting is fast, efficiency is high, be reliability and durability, now be widely used in the fields such as space flight, superconduction, infrared acquisition, missile guidance, infrared forward sight and the military and civilian such as night vision, thermal imaging system equipment has played important effect.
Sterlin refrigerator is divided into Integral cryocooler and separated type refrigeration machine, wherein Split type Stirling refrigerating machine belongs to the piston-discharge type refrigeration machine be made up of two reciprocating cylinder be separated, displacer in expander cylinder and bent axle are not mechanically connected, and can move freely in the cylinder.Thus, the subject matter of Split type Stirling refrigerating machine how to maintain the correct stroke of displacer in expander cylinder, and keep having suitable phase relation with the motion of compressor.The now better simply air-driven type decompressor of many employings, in this case, the periodic pressure ripple that displacer is produced by compressor driven, displacer and support spring thereof form a Forced Vibration System, the damping force produced can produce suitable phase difference, make the motion of displacer than compression piston movement always super previous phase angle, thus produce refrigerating efficiency effectively.Because sterlin refrigerator is electromechanical integrated product, calculating under actual condition needs hypothesis and ignores several factors, and the uniformity of domestic machined piece is comparatively difficult to ensure card, therefore, the design of decompressor first goes out the correct stroke of displacer in expander cylinder and the rigidity of decompressor spring by theory calculate, carry out some debugging again, thus obtain the parameter of decompressor the best.
At present, having three parameters to regulate in the decompressor debug process of Split type Stirling refrigerating machine, is the gap of displacer and expander cylinder, the rigidity of decompressor spring, displacer and expander cylinder distance respectively.The gap of displacer and expander cylinder is ensured by the method for machining, and two other parameter obtains by calculating, and considers the inexactness calculated, then in computer capacity, carry out repetition debugging test acquisition optimal parameter.Each test all via dismounting, hunt leak, vacuumize, inflate, lower the temperature, multiple step such as loading completes, and need carry out repeated disassembled and assembled and changes parameter and test, add the workload of commissioning staff, lose time and resource, efficiency is lower.
Summary of the invention
The present invention is the problem that the current Split type Stirling refrigerating machine decompressor part of solution is debugged repeatedly, provide a kind of on-line control device of Split type Stirling refrigerating machine decompressor, the use of this device effectively can shorten debug time, and this apparatus structure simple, use easy to operate.
The on-line control device of Split type Stirling refrigerating machine decompressor of the present invention, comprise the adjusting rod that one end can be connected with decompressor spring fixed seat, described adjusting rod periphery is provided with self sealss seat, be provided with extenal fixation seat in the periphery of described self sealss seat, described holder is provided with the screw hole for connecting expander cylinder; The other end of described adjusting rod extends an extension adjusting portion from the end of described extenal fixation seat and self sealss seat.
The periphery, end of described extenal fixation seat is connected with locking nut.
Seal member is equipped with between described adjusting rod and self sealss seat and between self sealss seat and extenal fixation seat.
Described seal member is O type rubber seal.
The periphery of described adjusting rod and self sealss seat is equipped with the groove for placing described O type rubber seal.
Be connected by O type rubber seal between adjusting rod of the present invention with self sealss seat, form side seal, the air-tightness of assurance device; Be connected by O type rubber seal between self sealss seat with extenal fixation seat, form side seal, the air-tightness of assurance device; Form end face seal by O type rubber seal between extenal fixation seat and expander cylinder, ensure the air-tightness of on-line control device and decompressor; Adjusting rod and spring fixed seat are threaded connection, and adjusting rod and screw thread are formed and links, and are changed the rigidity of decompressor spring by rotation adjusting lever; Be threaded connection between self sealss seat and locking nut, simultaneously locking nut plays the position-limiting action to self sealss seat, regulates distance between displacer and cylinder by decompressor internal gas pressure to the displacement that self sealss seat produces; The material of adjusting rod, self sealss seat, extenal fixation seat, locking nut is stainless steel or brass.
The on-line parameter that the present invention can realize in refrigeration machine test process regulates, and can improve debugging efficiency, and shorten the R&D cycle of sterlin refrigerator, this apparatus structure is simple, easy to operate, cost of manufacture is low.
Accompanying drawing explanation
Fig. 1 is the mounting structure schematic diagram of on-line control device of the present invention and decompressor;
Fig. 2 is the structural representation after regulating;
Fig. 3 is on-line control device overall structure schematic diagram of the present invention.
In figure: 1. adjusting rod, 2. locking nut, 3. self sealss seat, 4.O type rubber seal one, 5. O type rubber seal two, 6. extenal fixation seat, 7. O type rubber seal three, 8. screw, 9. spring fixed seat, 10. decompressor spring, 11. expander cylinder, 12. displacers, 13. spring pedestals.
Detailed description of the invention
As Figure 1-3, the on-line control device of Split type Stirling refrigerating machine decompressor of the present invention, comprise the adjusting rod 1 that one end can be connected with decompressor spring fixed seat 9, adjusting rod 1 periphery is provided with self sealss seat 3, be provided with extenal fixation seat 6 in the periphery of described self sealss seat 3, holder 6 is provided with the screw hole for connecting expander cylinder 11; The other end of described adjusting rod 1 extends an extension adjusting portion from the end of described extenal fixation seat 6 and self sealss seat 3; The periphery, end of extenal fixation seat 6 is connected with locking nut 2; Adjusting rod 1 is provided with the groove for placing O type rubber seal 25, the periphery of self sealss seat 3 is provided with the groove for placing O type rubber seal 1, make to be connected by O type rubber seal 25 between adjusting rod 1 with self sealss seat 3, form side seal, the air-tightness of assurance device; Be connected by O type rubber seal 1 between self sealss seat 3 with extenal fixation seat 6, form side seal, the air-tightness of assurance device.
The present invention in use, O type rubber seal 25 is loaded in the groove on adjusting rod 1, again self sealss seat 3 is inserted on adjusting rod, and adjusting rod 1 is screwed in spring fixed seat 9, regulate height a small amount of 502 glue secured adjusted bars and spring fixed seat to realize the interlock of adjusting rod and spring fixed seat; Again decompressor spring 10 two ends afterbody is screwed in respectively the spring base of spring fixed seat 9 and displacer 12, with electric iron and solder stick, spring afterbody and adjusting rod are carried out spot welding with fixing; O type rubber seal 1 is loaded in groove on self sealss seat 3, assembly displacer 12, decompressor spring 10, spring fixed seat, adjusting rod 1, self sealss seat 3, O type rubber seal 1, O type rubber seal 25 etc. formed again loads in expander cylinder 11, self sealss seat is screwed in after loading O type rubber seal 37 in the groove of holder 6 outside, and with screw 8, itself and expander cylinder flange are fixed, and locking nut 2 is screwed in extenal fixation seat 6, the pressure that whole like this device can bear can reach 3.5MPa.The sealing to refrigeration machine working medium helium is realized by the side seal of two places and the end face seal of 1 place.By fine setting adjusting rod and locking nut to change decompressor spring rate and displacer and expander cylinder distance, optimum Working can be reached to realize refrigeration machine in sterlin refrigerator test process.Obtain decompressor demi-inflation machine spring rate and displacer and expander cylinder distance optimum working parameter after, this device is pulled down when not contacting and being respectively threaded relative position, record the design parameters such as the effective length of decompressor spring rate and decompressor spring with spring rate tester and slide measure, and spring fixed seat is taken off from adjusting rod.
In fig. 2, ensure that the effective length of decompressor spring rate and the decompressor spring determined by above-mentioned steps is constant, be arranged on spring pedestal by spring fixed seat 13, alignment springs base 13 and expander cylinder contact surface carry out welding the assembling namely completing decompressor.
The specific embodiments more than provided is the concrete description carried out the present invention; what be necessary to herein means out is that specific embodiments described above is only for further illustrating technical solution of the present invention; simply should not be interpreted as limiting the scope of the invention, the those of ordinary skill in this field must belong to protection scope of the present invention based on flesh and blood of the present invention to the replacement of the unsubstantiality that the present invention makes or adjustment.
Claims (4)
1. the on-line control device of a Split type Stirling refrigerating machine decompressor, it is characterized in that: comprise the adjusting rod (1) that one end can be connected with decompressor spring fixed seat (9), described adjusting rod (1) periphery is provided with self sealss seat (3), be provided with extenal fixation seat (6) in the periphery of described self sealss seat (3), described holder (6) is provided with the screw hole for connecting expander cylinder (11); The other end of described adjusting rod (1) extends an extension adjusting portion from the end of described extenal fixation seat (6) and self sealss seat (3); The periphery, end of described extenal fixation seat (6) is connected with locking nut (2).
2. the on-line control device of Split type Stirling refrigerating machine decompressor as claimed in claim 1, is characterized in that: be equipped with seal member between described adjusting rod (1) and self sealss seat (3) and between self sealss seat (3) and extenal fixation seat (6).
3. the on-line control device of Split type Stirling refrigerating machine decompressor as claimed in claim 2, is characterized in that: described seal member is O type rubber seal.
4. the on-line control device of Split type Stirling refrigerating machine decompressor as claimed in claim 3, is characterized in that: the periphery of described adjusting rod (1) and self sealss seat (3) is equipped with the groove for placing described O type rubber seal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310108126.6A CN103175357B (en) | 2013-03-29 | 2013-03-29 | On-line regulation device of expansion machine of split type stirling cryocooler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310108126.6A CN103175357B (en) | 2013-03-29 | 2013-03-29 | On-line regulation device of expansion machine of split type stirling cryocooler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103175357A CN103175357A (en) | 2013-06-26 |
| CN103175357B true CN103175357B (en) | 2015-07-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310108126.6A Expired - Fee Related CN103175357B (en) | 2013-03-29 | 2013-03-29 | On-line regulation device of expansion machine of split type stirling cryocooler |
Country Status (1)
| Country | Link |
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| CN (1) | CN103175357B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107421153B (en) * | 2017-08-22 | 2022-07-12 | 中国电子科技集团公司第十六研究所 | Stirling-pulse tube mixed cold finger adopting column spring phase modulation |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003058090A1 (en) * | 2002-01-08 | 2003-07-17 | Honeywell International Inc. | Adjustable tuned mass damper |
| CN1523309A (en) * | 2003-09-05 | 2004-08-25 | 中国科学院上海技术物理研究所 | Phase modulator of air-operated separately mounted Stirling's refrigerator |
| CN201083321Y (en) * | 2007-09-14 | 2008-07-09 | 杨叶 | High pressure difference pressure regulator |
| CN202719221U (en) * | 2012-05-18 | 2013-02-06 | 中山市亚泰机械实业有限公司 | Pressure reducing valve regulating and locking mechanism |
| CN102954886A (en) * | 2012-11-06 | 2013-03-06 | 南京工程学院 | Device for measuring stiffness of pilot spring |
| CN203274386U (en) * | 2013-03-29 | 2013-11-06 | 中国电子科技集团公司第十六研究所 | Online adjusting device of expander of split Stirling refrigerator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3588748B2 (en) * | 1998-12-14 | 2004-11-17 | 住友重機械工業株式会社 | Cold head for refrigerator |
| JP2000266420A (en) * | 1999-03-17 | 2000-09-29 | Sumitomo Heavy Ind Ltd | Refrigerator, compressor, and expander, and manufacture of refrigerator |
-
2013
- 2013-03-29 CN CN201310108126.6A patent/CN103175357B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003058090A1 (en) * | 2002-01-08 | 2003-07-17 | Honeywell International Inc. | Adjustable tuned mass damper |
| CN1523309A (en) * | 2003-09-05 | 2004-08-25 | 中国科学院上海技术物理研究所 | Phase modulator of air-operated separately mounted Stirling's refrigerator |
| CN201083321Y (en) * | 2007-09-14 | 2008-07-09 | 杨叶 | High pressure difference pressure regulator |
| CN202719221U (en) * | 2012-05-18 | 2013-02-06 | 中山市亚泰机械实业有限公司 | Pressure reducing valve regulating and locking mechanism |
| CN102954886A (en) * | 2012-11-06 | 2013-03-06 | 南京工程学院 | Device for measuring stiffness of pilot spring |
| CN203274386U (en) * | 2013-03-29 | 2013-11-06 | 中国电子科技集团公司第十六研究所 | Online adjusting device of expander of split Stirling refrigerator |
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| CN103175357A (en) | 2013-06-26 |
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Address after: 230088 658 Wangjiang West Road, Hefei high tech Zone, Anhui Patentee after: CHINA ELECTRONICS TECHNOLOGY Group CORPORATION NO 16 INSTITUTE Address before: 230043 No. 439, Suixi Road, Hefei, Anhui Patentee before: CHINA ELECTRONICS TECHNOLOGY Group CORPORATION NO 16 INSTITUTE |
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Granted publication date: 20150722 Termination date: 20210329 |