CN1683845A - Stirling refrigerator with linear slide rail bearing support - Google Patents
Stirling refrigerator with linear slide rail bearing support Download PDFInfo
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- CN1683845A CN1683845A CN 200410031197 CN200410031197A CN1683845A CN 1683845 A CN1683845 A CN 1683845A CN 200410031197 CN200410031197 CN 200410031197 CN 200410031197 A CN200410031197 A CN 200410031197A CN 1683845 A CN1683845 A CN 1683845A
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Abstract
The Stirling refrigerator with linear slide rail bearing support consists of mainly compressor, cold head in 90 deg to the compressor, drive motor, and crank connecting mechanism. It features that there are linear slide rail bearing installed between the piston and the cylinder body and linear slide rail bearing installed between the exhauster and the cold cylinder. Supporting the piston and the exhauster separately with linear slide rail bearing can ensure the radial positions of the piston and the exhauster during the axial reciprocation, reduce or eliminate friction to cylinder, raise the reliability of the refrigerator and prolong the service life of the refrigerator.
Description
Technical field
The invention belongs to the refrigeration machine of refrigeration technology field, particularly a kind of sterlin refrigerator with the line slide rail bearings.
Background technology
Sterlin refrigerator is a kind of active refrigeration machine, and its kind of refrigeration cycle is the contrary circulation of Stirling (thermodynamic cycle of being made up of appearance heat recovery processes such as two constant temperature process and two).Advantages such as stirling refrigeration has the refrigerating efficiency height, volume is little, in light weight, startup is fast, flexible for installation, operating temperature range is wide, easy and simple to handle are widely used in cmos circuit in infrared detecting set, x-ray instrument, gamma rays measuring instrument, high temperature superconduction wave filter and the computer, capture the cold-trap of water vapour etc.
Since first sterlin refrigerator in 1954 came out, various countries had carried out more deep research to sterlin refrigerator.Because development, the especially infrared detection technique of infrared technique and superconducting electronics have greatly advanced the development of sterlin refrigerator in the application of military field and space field.The life-span and the reliability of sterlin refrigerator have obtained large increase, become the most deep, most widely used general, a kind of refrigeration machine that modification is maximum of research.
Early stage traditional sterlin refrigerator is an overall structure, compressor becomes 90 ° of layouts with cold head, compressor piston and cold head displacer are driven by electric rotating machine through the crank linkage, and piston is the sealing that contacts of nonmetal elastic ring with the displacer and the seal form of respective cylinder.The motion phase and the stroke of this piston and displacer are constant, and the thermodynamics and kinetics characteristic is separate, realize stable refrigeration performance easily.But piston and displacer are bigger to the side force of respective cylinder, and it is more serious to wear and tear.Because transmission mechanism is for there being oil lubrication, there is pollution in refrigeration working medium, thereby the working life of refrigeration machine is affected.
Nineteen sixty-eight, Holland Pillips company recognizes the weak link (there are defective in bearing, sealing, pollution etc.) of traditional sterlin refrigerator, at first propose linear resonance press notion, and be applied to the sterlin refrigerator design, and adopt unlubricated clearance seal.The moving component of this refrigerator compressor is few, side force is little, pollution is little, wearing and tearing are low, thereby working life and reliability are improved.But because moving piston and displacer do not have radial support, so its Mean Time Between Failures generally also has only 2500 hours, a few experiments model machine can reach 5000 hours.
In order further to improve the working life and the reliability of sterlin refrigerator, make it reach the requirement more than 20000 hours that use in the space, 1976, Pillips laboratory, North America begins to be NASA and the DARPA exploitation spaceborne long-life sterlin refrigerator of linear resonance formula (lasting 5 years), propose and realized the electromagnetic bearing support technology, to guarantee the seal clearance of piston and cylinder, improve the working life of refrigeration machine greatly, its model machine has reached the refrigeration index of 65K/SW, and the ground experiment life-span has also reached 28000 hours; But because structure and control system are too complicated, volume, weight is big (60kg) too, makes to exclude the satellite application plan afterwards and end development and exploitation.Regius professor begins directly to develop spaceborne long-life sterlin refrigerator the end of the seventies, at first cycloid cantilever beam type plate-shaped springs support technology its development and that obtain the space successful Application (abbreviation leaf spring) is applied to sterlin refrigerator, to guarantee the complete noncontact of piston and regenerator motion assembly, eliminate wearing and tearing, the reliability and the working life of sterlin refrigerator are improved greatly, started the Oxford type sterlin refrigerator epoch of fashionable low temperature circle.Compare with the electromagnetic bearing flexible support of Pillips company, the flat spring flexible support has advantage simple in structure, reliable, lightweight.To in November, 1992, the ground experiment life-span (MTBT) of the Oxford type sterlin refrigerator of BAe company (existing bright is Matra Marconi Space) development has reached 41933 hours.The difficult point that flat spring supports is that the aligning of cylinder, piston component and flat spring assembly and assembling, clearance measurement are very high with the requirement of collimation aspect, and the cost height is suitable for the few space technology of quantity.In the later stage, U.S. Superconductor Technologies, Inc. (STI) application gas suspension technology and flat spring support technology are developed into the sterlin refrigerator of the linear electric motors driving of gas suspension supporting movement piston, the life-span of having improved refrigeration machine.
The linear electric motors reciprocating force vertically of the sterlin refrigerator that above-mentioned linear electric motors drive directly acts on piston and displacer, thereby side force is little, and it is little to wear and tear, working life higher (about 5000 hours).If bonding gap sealing and flat spring support or gas suspension supports, the life-span can reach more than 15000 hours.But because design of electrical motor is related with refrigeration machine, the processing and manufacturing process is very high to the requirement on machining accuracy of parts such as motor, flat spring, thereby cost is higher.In addition, chiller heat mechanics and dynamic characteristic influence each other, mutual restriction, motion phase and stroke can change because of the change of refrigeration machine internal and external environment, and also existence influences each other and restricts, and refrigerating capacity and temperature are controlled more complicated, influences the functional reliability of refrigeration machine.
In sum, as can be seen, there is vacancy in working life sterlin refrigerator cheap between 5000-15000 hour, that be fit to make in batches.
Summary of the invention
The object of the present invention is to provide a kind of sterlin refrigerator that has the line slide rail bearings, the refrigeration machine piston of this refrigeration machine and displacer are by the line slide rail bearings, can guarantee the radial position of the compressor piston of refrigeration machine and cold head displacer in the axially reciprocating process, reduce and eliminate wearing and tearing between itself and respective cylinder, improve refrigeration machine working life and reliability.And cost low, be easy to produce in batches, working life can reach more than 5000 hours.
Technical scheme of the present invention is as follows:
The sterlin refrigerator of band line slide rail bearings provided by the invention, mainly form by compressor, cold head, drive motors, crank connecting four parts, compressor becomes 90 ° of layouts with cold head, compressor piston 13 and cold head displacer 18 link to each other with the toggle that is driven by electric rotating machine respectively, described piston 13 and cold head displacer 18 respectively with the clearance seal that is sealed into of respective cylinder; The bent axle 8 of crank connecting links to each other with displacer connecting rod 6 with piston rod 9 simultaneously, electric rotating machine moves back and forth in cylinder block 11 by bent axle 8, displacer connecting rod 6 and piston rod 9 difference drive compression machine pistons 13, drives cold head displacer 18 and moves back and forth in cooling cylinder body 4; Compression chamber 12 is connected by small-bore passage 15 with the room temperature chamber 39 of cold head; Regenerator 3 is positioned at cold head displacer 18 inside, and the two ends of regenerator 3 are connected with room temperature chamber 39 and cold chamber 2 respectively; It is characterized in that:
One straight line slide rail bearing 100 is installed between compressor piston 13 and cylinder block 11, the guide rail 20 of this line slide rail bearing 100 is fixedlyed connected with piston slider holder 14 with compressor piston 13 respectively with slide block 10, and described piston slider holder 14 is installed within the cylinder block 11 and is integral;
One straight line slide rail bearing 200 is installed between described displacer 18 and cooling cylinder body 4, the guide rail 28 of this line slide rail bearing 200 is fixedlyed connected with cold head displacer slide block holder 16 with cold head displacer 18 respectively with slide block 17, and described cold head displacer slide block holder 16 is installed within the cooling cylinder body 4 and is integral.
Between the axis of described datum level A and B and cylinder block 11, between the axis of datum level C and D and piston 13, between the axis of datum level A ' and B ' and cylinder block 4 and the depth of parallelism and positional precision between the axis of datum level C ' and D ' and cold head displacer 18 be at least 6 grades.
Horizontal direction between described slide block 10 and piston slider holder 14 is provided with the slide block side pressure piece 24 that promotes slide block 10, and the side of slide block 10 closely contacts with slide block holder datum level B; Vertical direction between described slide block 10 and piston slider holder 14 is provided with slide block heelpiece 19, and slide block 10 upper surfaces closely contact with slide block holder datum level A;
Be provided with the slide block side pressure piece 33 that promotes slide block 17 between described slide block 17 and the slide block holder 16, the side of slide block 17 closely contacts with slide block holder datum level B '; Vertical direction between described slide block 17 and slide block holder 16 is provided with slide block heelpiece 29, and slide block 17 upper surfaces closely contact with slide block holder datum level A '.
Horizontal direction between described guide rail 20 and compressor piston 13 is provided with the rail-sides briquetting 22 that promotes guide rail 20, and the side of guide rail 20 closely contacts with piston datum level C;
Be provided with the rail-sides briquetting 31 that promotes guide rail 28 between described guide rail 28 and the cold head displacer 18, guide rail 28 sides closely contact with displacer datum level C '.
Between described piston face of cylinder M1 and the piston slider holder face of cylinder M2, displacer face of cylinder M1 ', M1 " and displacer slide block holder face of cylinder M2 ' between axiality be at least 6 class precisions.
Axiality between axiality between the inner cylinder face M4 of described cylinder block 11 and another inner cylinder face M5, the inner cylinder face M4 ' of cooling cylinder body 4 and another inner cylinder face M5 ' is at least 6 class precisions.
The version that refrigeration machine of the present invention has selected electric rotating machine to drive.Because the piston of the sterlin refrigerator of this structure and the phase place between the displacer and displacement are separately guaranteed by electric rotating machine and toggle fully, so, the stroke of refrigeration machine and phase place are constant fully in running, dynamics and thermodynamics are relatively independent, do not exist and influence each other, thereby the chiller heat stable performance, the reliability height.In addition, electric rotating machine can independently be purchased from market, is convenient to industrialization.
The subject matter that the sterlin refrigerator that electric rotating machine drives exists is that the side force of piston and displacer is bigger, and the wearing and tearing between respective cylinder are bigger, thereby influences working life.In order to address the above problem, bring into play the advantage of the sterlin refrigerator of electric rotating machine driving to greatest extent, the present invention adopts line slide rail bearings compressor piston and cold head displacer, guarantee between refrigeration machine piston and the cylinder, the micron order seal clearance between displacer and the cooling cylinder, the sliding friction in restriction refrigeration machine life-span is converted to the rolling friction of ripe linear bearing, thereby reduce the friction between piston and cylinder, improve the refrigeration machine working life.
Owing to adopted the line slide rail bearings, the wearing and tearing between the piston of refrigeration machine and displacer and the respective cylinder are controlled.The key that influences the refrigeration machine working life has been transferred on the line slide rail parts of bearings but simultaneously.The life-span of line slide rail bearing is directly restricting the life-span of refrigeration machine.Performance indications according to refrigeration machine running parameter and line slide rail bearing are calculated, and adopt the working life of the line slide rail bearing of grease lubrication can reach 5690000 hours, satisfy the requirement of refrigeration machine far away.Select the very low grease lubrication product of saturated vapor pressure (market can be bought) for use and sorbent material is set and to reduce the pollution of grease venting, improve the refrigeration machine working life refrigeration working medium in conjunction with crankcase.The present invention also can adopt the used solid lubrication technology of space high-performance bearing institute that linear bearing is plated solid lubricant film and handle, and in the life-span that both can improve the line slide rail bearing, has also eliminated simultaneously because the pollution that the grease lubrication material may bring.Compare with grease lubrication, the solid lubrication poor-performing, thereby it is relatively large to wear and tear, so the working life of the line slide rail bearing of solid lubrication can decrease.The working life of bearing with solid lubricant is generally 0.1～0.2 times of grease lubrication.Calculate by the poorest situation, the working life that can obtain solid lubrication line slide rail bearing also can reach more than 569000 hours.In addition, the bearing in toggle and the electric rotating machine can be selected solid lubrication rolling bearing, solid sliding bearing or low diffusion lubricant grease bearing for use.
The sterlin refrigerator that has the line slide rail bearings provided by the invention, the piston of this refrigeration machine and displacer are by the line slide rail bearings, can guarantee the radial position of the piston of refrigeration machine and displacer in the axially reciprocating process, reduce and eliminate wearing and tearing between itself and respective cylinder, improve refrigeration machine working life and reliability.And cost low, be easy to produce in batches, its working life can reach more than 5000 hours.
Description of drawings
Accompanying drawing 1 is the whole cutaway view of sterlin refrigerator of the present invention;
Accompanying drawing 2-1 is the piston assembly structure schematic diagram;
Accompanying drawing 2-2 is the S-S cutaway view of accompanying drawing 2-1;
Accompanying drawing 2-3 is the P-P cutaway view of accompanying drawing 2-1;
Accompanying drawing 4-1 is the displacer structural representation;
Accompanying drawing 4-2 is the Q-Q cutaway view of accompanying drawing 4-1;
Accompanying drawing 4-3 is the K-K cutaway view of accompanying drawing 4-1;
Accompanying drawing 5 is a cooling cylinder body modular construction schematic diagram;
Wherein: bent axle 8 piston rods 9
Displacer connecting rod 6 compressor pistons 13
Displacer slide block holder 16 datum level A, B, C, D, A ', B ', C ', D '
Rail-sides briquetting 22,31 slide block side pressure pieces 24,33
Displacer external cylindrical surface M1 ', M1 " displacer slide block holder external cylindrical surface M2 '
The inner cylinder face M4 of cylinder block, M5 cooling cylinder body inner cylinder face M4 ', M5 '
Piston slider holder external cylindrical surface M2
Screw 21,23,25,26,27,30,32,33,34,35
The specific embodiment
Accompanying drawing 1 is the whole cutaway view of sterlin refrigerator of the present invention; As seen from the figure, the sterlin refrigerator of band line slide rail bearings of the present invention mainly is made up of compressor, cold head, drive motors, crank connecting four parts, compressor becomes 90 ° of layouts with cold head, compressor piston 13 and cold head displacer 18 link to each other with the toggle that is driven by electric rotating machine respectively, described piston 13 and cold head displacer 18 respectively with the clearance seal that is sealed into of respective cylinder; The bent axle 8 of crank connecting links to each other with displacer connecting rod 6 with piston rod 9 simultaneously, electric rotating machine moves back and forth in cylinder block 11 by bent axle 8, displacer connecting rod 6 and piston rod 9 difference drive compression machine pistons 13, drives cold head displacer 18 and moves back and forth in cooling cylinder body 4; Compression chamber 12 is connected by small-bore passage 15 with the room temperature chamber 39 of cold head; Regenerator 3 is positioned at cold head displacer 18 inside, and the two ends of regenerator 3 are connected with room temperature chamber 39 and cold chamber 2 respectively;
Accompanying drawing 2-1 is the piston assembly structure schematic diagram; Accompanying drawing 2-2 is the S-S cutaway view of accompanying drawing 2-1; Accompanying drawing 2-3 is the P-P cutaway view of accompanying drawing 2-1; Accompanying drawing 3 is the block structure schematic diagram; As seen from the figure, the present invention installs a straight line slide rail bearing 100 between compressor piston 13 and cylinder block 11, this line slide rail bearing 100 is made up of guide rail 20, slide block 10 and ball 37, its guide rail 20 is fixedlyed connected by screw 21 with compressor piston 13, slide block 10 is fixedlyed connected by screw 26 with piston slider holder 14, and described piston slider holder 14 is installed within the cylinder block 11 and is integral (have among Fig. 1 and show);
Accompanying drawing 4-1 is the displacer structural representation; Accompanying drawing 4-2 is the Q-Q cutaway view of accompanying drawing 4-1; Accompanying drawing 4-3 is the K-K cutaway view of accompanying drawing 4-1; Accompanying drawing 5 is a cooling cylinder body modular construction schematic diagram; As seen from the figure, one straight line slide rail bearing 200 is installed between described displacer 18 and cooling cylinder body 4, this line slide rail bearing 200 is made up of guide rail 28, slide block 17 and ball 38, its guide rail 28 is fixedlyed connected by screw 30 with cold head displacer 18, slide block 17 is fixedlyed connected by screw 36 with slide block holder 16, and described cold head displacer slide block holder 16 is installed within the cooling cylinder body 4 and is integral (have among Fig. 1 and show).
Between the axis of described datum level A and B and cylinder block 11, between the axis of datum level C and D and piston 13, between the axis of datum level A ' and B ' and cylinder block 4 and the depth of parallelism and positional precision between the axis of datum level C ' and D ' and cold head displacer 18 be at least 6 grades.
Horizontal direction between described slide block 10 and piston slider holder 14 is provided with slide block side pressure piece 24, promotes slide block side pressure piece 24 with screw 25, and the side of slide block 10 is closely contacted with slide block holder datum level B; Vertical direction between described slide block 10 and piston slider holder 14 is provided with slide block heelpiece 19, promote slide block heelpiece 19 with screw 27, slide block 10 upper surfaces are closely contacted with slide block holder datum level A, with screw 26 slide block 10 and piston slider holder 14 are fixed into one at last;
Be provided with slide block side pressure piece 33 between described slide block 17 and the slide block holder 16, promote slide block side pressure piece 33, the side of slide block 17 is closely contacted with slide block holder datum level B ' with screw 34; Vertical direction between described slide block 17 and slide block holder 16 is provided with slide block heelpiece 29, promote slide block heelpiece 29 with screw 35, slide block 17 upper surfaces are closely contacted with slide block holder datum level A ', with screw 36 slide block 17 and slide block holder 16 are fixed into one at last;
Horizontal direction between described guide rail 20 and compressor piston 13 is provided with rail-sides briquetting 22, promotes rail-sides briquetting 22 with screw 23, and the side of guide rail 20 is closely contacted with piston datum level C, and is with screw 21 that guide rail 20 is fixing with compressor piston 13 at last;
Be provided with rail-sides briquetting 31 between described guide rail 28 and the cold head displacer 18, promote rail-sides briquetting 31, guide rail 28 sides are closely contacted with displacer datum level C ' with screw 32, with screw 36 that guide rail 28 is fixing with cold head displacer 18 at last.
Between described piston face of cylinder M1 and the piston slider holder face of cylinder M2, displacer face of cylinder M1 ', M1 " and displacer slide block holder face of cylinder M2 ' between axiality be at least 6 class precisions.
Between the inner cylinder face M4 of described cylinder block 11 and another inner cylinder face M5, the inner cylinder face M4 ' of cooling cylinder body 4 and the axiality between another inner cylinder face M5 ' be at least 6 class precisions.
Refrigerating device inner is filled with the helium of certain pressure.During work, electric rotating machine moves back and forth in cylinder block 11 by crank connecting 6,8,9 drive compression machine pistons 13, and electric rotating machine moves back and forth in cooling cylinder body 4 by the displacer 18 that crank connecting 6,8,9 drives cold head simultaneously; Displacer 18 remains cold head displacer 18 leading compressor piston 1390 degree with the motion phase difference of piston 13 by crank connecting 6,8,9; Helium in the compression chamber 12 produces pressure wave in the reciprocating motion process of piston 13, this pressure wave reaches the room temperature chamber 39 of cold head by the small-bore passage 15 that connects compression chamber 12 and room temperature chamber 39, regenerator 3 through displacer 18 inside enters cold chamber 2 again, and helium expands in cold cavity 2 and produces cold; This structure has guaranteed refrigeration machine by stirling refrigeration circular flow, realizes refrigeration cool-down.
Under the effect of line slide rail bearing 100, compressor piston 13 is the reciprocating while vertically, its radial position is maintained, thereby reduces or avoided the friction of outer surface with the inner surface of cylinder block 11 of compressor piston 13, raising refrigeration machine functional reliability and life-span.
Equally, under the effect of line slide rail bearing 200, cold head displacer 18 is the reciprocating while vertically, and its radial position is maintained, thereby reduce or avoided the friction of cold head displacer 18 outer surfaces and cooling cylinder body 4 inner surfaces, raising refrigeration machine functional reliability and life-span.
Claims (7)
1, a kind of sterlin refrigerator with the line slide rail bearings, mainly form by compressor, cold head, drive motors, crank connecting four parts, compressor becomes 90 ° of layouts with cold head, compressor piston (13) and cold head displacer (18) link to each other with the toggle that is driven by electric rotating machine respectively, described piston (13) and cold head displacer (18) respectively with the clearance seal that is sealed into of respective cylinder; The bent axle of crank connecting (8) links to each other with displacer connecting rod (6) with piston rod (9) simultaneously, electric rotating machine moves back and forth in cylinder block (11) by displacer connecting rod (6), bent axle (8) and piston rod (9) difference drive compression machine piston (13), drives cold head displacer (18) and moves back and forth in cooling cylinder body (4); Compression chamber (12) is connected by small-bore passage (15) with the room temperature chamber (39) of cold head; Regenerator (3) is positioned at cold head displacer (18) inside, and the two ends of regenerator (3) are connected with room temperature chamber (39) and cold chamber (2) respectively; It is characterized in that:
One straight line slide rail bearing (100) is installed between compressor piston (13) and cylinder block (11), the guide rail (20) of this line slide rail bearing (100) is fixedlyed connected with piston slider holder (14) with compressor piston (13) respectively with slide block (10), and described piston slider holder (14) is installed within the cylinder block (11) and is integral;
One straight line slide rail bearing (200) is installed between described displacer (18) and cooling cylinder body (4), the guide rail (28) of this line slide rail bearing (200) is fixedlyed connected with cold head displacer slide block holder (16) with cold head displacer (18) respectively with slide block (17), and described cold head displacer slide block holder (16) is installed within the cooling cylinder body (4) and is integral.
2, press the sterlin refrigerator of the described band line slide rail of claim 1 bearings, it is characterized in that, guide rail (20) cross section in the described line slide rail bearing (100) is a square, and described compressor piston (13) is that datum level cooperates with guide rail (20) location with two of guide rail (20) perpendicular datum levels (C) and (D); Described piston slider holder (14) is that datum level cooperates with slide block (10) location with two of slide block (10) perpendicular datum levels (A) and (B); The external cylindrical surface (M2) of described piston slider holder (14) cooperates with the inner cylinder face (M5) of cylinder block (11) location, and the seal clearance between another inner cylinder face (M4) of described cylinder block (11) and the external cylindrical surface (M1) of piston (13) is even;
Guide rail (28) cross section of described line slide rail bearing (200) is a square, and described cold head displacer (18) is that datum level cooperates with guide rail (28) location with two of guide rail (28) perpendicular datum levels (C ') and (D '); Described cold head slide block holder (16) is that datum level cooperates with slide block (17) location with two of slide block (17) perpendicular datum levels (A ') and (B '); The inner cylinder face of the external cylindrical surface of described cold head slide block holder (16) (M2 ') and cooling cylinder body (4) (M5 ') location cooperates, and the seal clearance between the outside cylinder of another inner cylinder face of cooling cylinder body (4) (M4 ') and displacer (18) (M1 ') is even.
3, press the sterlin refrigerator of the described band line slide rail of claim 1 bearings, it is characterized in that, described datum level (A) and (B) and between the axis of cylinder block (11), datum level (C) and (D) and between the axis of piston (13), between the axis of datum level (A ') and (B ') and cylinder block (4) and the depth of parallelism and positional precision between the axis of datum level (C ') and (D ') and cold head displacer (18) be at least 6 grades.
4, press the sterlin refrigerator of the described band line slide rail of claim 1 bearings, it is characterized in that, horizontal direction between described slide block (10) and slide block holder (14) is provided with the slide block side pressure piece (24) that promotes slide block (10), and the side of slide block (10) closely contacts with slide block holder datum level (B); Vertical direction between described slide block (10) and slide block holder (14) is provided with slide block heelpiece (19), and slide block (10) upper surface closely contacts with slide block holder datum level (A);
Be provided with the slide block side pressure piece (33) that promotes slide block (17) between described slide block (17) and the slide block holder (16), and the side of slide block (17) and slide block holder datum level (B ') closely contact; Vertical direction between described slide block (17) and slide block holder (16) is provided with slide block heelpiece (29), and slide block (17) upper surface and slide block holder datum level (A ') closely contact.
5, press the sterlin refrigerator of the described band line slide rail of claim 1 bearings, it is characterized in that, horizontal direction between described guide rail (20) and piston (13) is provided with the rail-sides briquetting (22) that promotes guide rail (20), and the side of guide rail (20) closely contacts with piston datum level (C);
Be provided with the rail-sides briquetting (31) that promotes guide rail (28) between described guide rail (28) and the displacer (18), and guide rail (28) side and displacer datum level (C ') closely contact.
6, press the sterlin refrigerator of the described band line slide rail of claim 1 bearings, it is characterized in that the axiality between the described piston face of cylinder (M1) and the piston slider holder face of cylinder (M2), between the displacer face of cylinder (M1 '), (M1 ") and the displacer slide block holder face of cylinder (M2 ') is at least 6 class precisions.
7, press the sterlin refrigerator of the described band line slide rail of claim 1 bearings, it is characterized in that the axiality of the inner cylinder face of the inner cylinder face (M4) of described cylinder block (11) and the axiality of another inner cylinder face (M5), cooling cylinder body (4) (M4 ') and another inner cylinder face (M5 ') is at least 6 class precisions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100311971A CN1285865C (en) | 2004-04-14 | 2004-04-14 | Stirling refrigerator with linear slide rail bearing support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2004100311971A CN1285865C (en) | 2004-04-14 | 2004-04-14 | Stirling refrigerator with linear slide rail bearing support |
Publications (2)
| Publication Number | Publication Date |
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| CN1683845A true CN1683845A (en) | 2005-10-19 |
| CN1285865C CN1285865C (en) | 2006-11-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2004100311971A Expired - Fee Related CN1285865C (en) | 2004-04-14 | 2004-04-14 | Stirling refrigerator with linear slide rail bearing support |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377282A (en) * | 2010-08-06 | 2012-03-14 | 中国科学院理化技术研究所 | Electricity generator driven by thermo compressor |
| CN102654325A (en) * | 2012-05-14 | 2012-09-05 | 中国电子科技集团公司第十四研究所 | Ball spline supporting Stirling refrigerator |
| CN103629841A (en) * | 2013-12-17 | 2014-03-12 | 常州鸿源动力科技有限公司 | Novel Stirling cycle thermal expansion mechanism |
| CN109342780A (en) * | 2018-11-17 | 2019-02-15 | 中国科学院理化技术研究所 | The magnetic field measuring device of probe support clamping device and magnet spaces |
| CN109681727A (en) * | 2017-10-19 | 2019-04-26 | 爱孚迪(上海)制造系统工程有限公司 | A kind of flexible supporting unit |
-
2004
- 2004-04-14 CN CNB2004100311971A patent/CN1285865C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102377282A (en) * | 2010-08-06 | 2012-03-14 | 中国科学院理化技术研究所 | Electricity generator driven by thermo compressor |
| CN102654325A (en) * | 2012-05-14 | 2012-09-05 | 中国电子科技集团公司第十四研究所 | Ball spline supporting Stirling refrigerator |
| CN103629841A (en) * | 2013-12-17 | 2014-03-12 | 常州鸿源动力科技有限公司 | Novel Stirling cycle thermal expansion mechanism |
| CN103629841B (en) * | 2013-12-17 | 2016-05-18 | 常州鸿源动力科技有限公司 | A kind of novel stirling cycle heat power expansion mechanism |
| CN109681727A (en) * | 2017-10-19 | 2019-04-26 | 爱孚迪(上海)制造系统工程有限公司 | A kind of flexible supporting unit |
| CN109681727B (en) * | 2017-10-19 | 2024-03-01 | 爱孚迪(上海)制造系统工程有限公司 | Flexible supporting unit |
| CN109342780A (en) * | 2018-11-17 | 2019-02-15 | 中国科学院理化技术研究所 | The magnetic field measuring device of probe support clamping device and magnet spaces |
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| Publication number | Publication date |
|---|---|
| CN1285865C (en) | 2006-11-22 |
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