CN104330248A - Linear compressor scroll plate spring axial stiffness testing device and manufacturing method thereof - Google Patents
Linear compressor scroll plate spring axial stiffness testing device and manufacturing method thereof Download PDFInfo
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- CN104330248A CN104330248A CN201410546526.XA CN201410546526A CN104330248A CN 104330248 A CN104330248 A CN 104330248A CN 201410546526 A CN201410546526 A CN 201410546526A CN 104330248 A CN104330248 A CN 104330248A
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Abstract
The invention discloses a linear compressor scroll plate spring axial stiffness testing device and a manufacturing method thereof. The testing device is formed by an upper cover, a base, a pull rod, an outer washer, an inner washer, a pressing nut, an outer gasket and an inner gasket. The inner edge and the outer edge of a scroll plate spring are respectively fixed through the testing device of the invention, thus the stress directions of the inner edge and the outer edge are strict axial directions and are parallel to each other in a reverse way, the stress bias and bending deformation generated in a scroll plate spring axial stiffness test is eliminated to the maximum so as to accurately measure the displacement of the plate spring under axial stress and the corresponding intensity value and changing trend, the comparison and reference of accurate measured data are provided for the design and manufacture of the scroll plate spring, and the device has positive effect for the optimal design of the scroll plate spring and the development of a linear compressor.
Description
Technical field
The present invention relates to linear compressor and laminated spring thereof, particularly a kind of proving installation of linear compressor spiral laminated spring axial rigidity and manufacture method.
Background technology
Linear compressor, or claim Linearkompressor, be a kind of reciprocating-piston compressor with innovation meaning.It utilizes linear electric motors driven plunger to do reciprocating linear motion in the cylinder, completely eliminate the radial forces to piston in theory, thus the mechanical wear between piston and cylinder wall and consequent idle work is also eliminated, mission life and energy conversion efficiency all increase substantially, so needing the long-life, the special dimension such as Aeronautics and Astronautics, military affairs that is highly reliable and efficiency operation has very important application.Such as, two class long-life regenerating type low-temperature refrigerator---pulse tube refrigerating machine and the sterlin refrigerators that current aerospace field is most widely used, the overwhelming majority adopts linear compressor as its power source.
The linear compressor being applied to the fields such as Aero-Space in the world mainly adopts Oxford type version.So-called " Oxford type ", it is gained the name and comes from two important technology inventions of Regius professor---and clearance seal and laminated spring support, these two technology are critical support that linear compressor realizes oil-free lubricatoin and the running of energy long-life.
Gap sealed essence makes to remain between the piston of motion and cylinder inner wall small gap (be called air gap, thickness is micron dimension).Gap Sealing Technology instead of the sealed solid of contact in contactless gas motive seal mode, thus the ingenious and contact wear that solves up hill and dale between piston and cylinder and the oil lubrication needed for Conventional solid sealing bring pollution problem, the influence on development for oil-free lubricatoin formula long-life linear compressor is far-reaching.
The Main Function of laminated spring support technology is realization and the clearance seal needed for long term maintenance.Laminated spring is generally made up of one group or the thin spring leaf of array, and it is very large that these spring leafs are designed to rigidity diametrically, and rigidity is less in the axial direction.Piston axle is fixed in the center of laminated spring, ensures that piston moves vertically all the time in cylinder, and do not offset diametrically with this, thus the air gap thickness between strict guarantee piston and cylinder inner wall.
From above-mentioned discussion, laminated spring plays the key effect of core in linear compressor technology, the quality of laminated spring design and manufaction quality will directly have influence on gap sealed effect, thus all produces conclusive impact to the efficiency of linear compressor, reliability and mission life.
In practice, spiral laminated spring is the laminated spring type that linear compressor is commonly used the most, and it is made up of several spiral arms, is divided into the key positions such as spiral groove, outer rim, inner edge, center pit and outer rim fixed orifice.Designing and developing of spiral laminated spring needs through complicated calculating and utilizes the method for modeling analysis to make structure be optimized, to obtain required key parameter values as far as possible.Before input practicality, also need to carry out detailed check analysis and test to the sample designed and machine, contrast design calculates and model analysis, finds out material and processing technology aspect possibility Problems existing, and obtains the feedback information structurally optimized further.At this wherein, the measurement of axial rigidity and radial rigidity is two very crucial tests.
First the test of spiral laminated spring axial rigidity requires inner edge and the outer rim of fixed head spring respectively, and keep the center line of proving installation and the verticality of laminated spring plane high-precision, the power suffered by such guarantee laminated spring is axial force.In test process, more want strict guarantee proving installation be applied to power in spiral laminated spring inner edge and outer rim all with the plane orthogonal of laminated spring, laminated spring inner edge is reverse parallel with the power suffered by outer rim, in the depth of parallelism, have certain deviation if there is the two, then test value will there will be comparatively big error.Above-mentioned two requirements propose very strict requirement to laminated spring axial rigidity proving installation.Because the development at home of long-life Oxford type linear compressor is also in the starting stage, so also rare for the Special testing device of its spiral laminated spring axial rigidity.
Summary of the invention
In view of this, the present invention proposes a kind of proving installation and manufacture method of linear compressor spiral laminated spring axial rigidity.
The object of the invention is to, pass through inner edge and the outer rim that spiral laminated spring fixed respectively by invented proving installation, make inner edge reverse parallel with two Impact direction of outer rim, and all accurately perpendicular to laminated spring plane, to accurately measure the displacement of laminated spring after axially loaded and corresponding intensity level and variation tendency, the designing and making for spiral laminated spring provide accurate measured data to when reference.
The proving installation of the linear compressor spiral laminated spring axial rigidity invented comprises upper cover 1, base 2, pull bar 3, outer washer 4, inner washer 5, gland nut 6, outer pad 7, internal gasket 8, it is characterized in that:
Described upper cover 1 centrally has for moving up and down to pull bar 3 the upper cover pilot hole 10 playing guide effect, be manufactured with the upper cover back-up ring cylindrical 11 with base 2 location fit on the upper cover lower end plane 13 of upper cover 1, be processed with the upper cover fixed orifice 12 of evenly arrangement in the outer rim of upper cover lower end plane 13;
On the base of described base 2, the outer rim of transverse plane 14 is processed with the base threaded upper ends hole 17 being used for fixing upper cover 1, a step is processed downwards along transverse plane on base 14, be made into the base matched with upper cover back-up ring cylindrical 11 and locate inner headed face 15, the inside of base 2 is processed with the base trade union college face 16 for installing inner washer 5 and spiral laminated spring 9 near centre position, base trade union college face 16 is processed with and is used for fixing inner washer 5, the workpiece retaining thread hole 18 of spiral laminated spring 9 and outer washer 4, base lower end plane 19 is processed with the base lower end fixed orifice 20 being used for fixing whole axial rigidity pick-up unit,
Process a step near lower end position in the middle of described pull bar 3, the lower surface of step is pull bar clamping plane 23, is respectively pull bar lower end cylindrical 24 and pull bar lower end external thread 25 under pull bar clamping plane 23; Internal gasket center pit 28, laminated spring center pit 33 and outer pad center pit 29 are enclosed within pull bar lower end cylindrical 24 successively, and entirety is fixed under the squeezing action being arranged on the gland nut 6 on pull bar lower end external thread 25, pull bar upper end cylindrical 22 is upward through upper cover pilot hole 10, and the pull bar upper external screw thread 21 on pull bar 3 top is connected with spring tension and compression testing machine; Keep the consistency of thickness of internal gasket 8 and inner washer 5, and keep the consistency of thickness of outer pad 7 and outer washer 4, and outer pad 7 is larger than the thickness of internal gasket 8, to ensure there is enough intensity when compressing spiral laminated spring 9;
Described inner washer 5 is arranged on base trade union college face 16, plays the effect supporting spiral laminated spring 9, the laminated spring outer rim 31 of spiral laminated spring 9 is interposed in centre by inner washer 5 and outer washer 4, and by being fixed on base trade union college face 16 through the screw of outer washer fixed orifice 27, laminated spring outer rim fixed orifice 34 and inner washer fixed orifice 26, thus the laminated spring outer rim 31 of spiral laminated spring 9 is made to connect into entirety with base 2, the laminated spring inner edge 32 of spiral laminated spring 9 is interposed in centre by internal gasket 8 and outer pad 7, pull bar lower end cylindrical 24 is successively through internal gasket center pit 28, laminated spring center pit 33 and outer pad center pit 29, pull bar clamping plane 23 connects with the end face of internal gasket 8, gland nut 6 is screwed on pull bar lower end external thread 25, tighten gland nut 6, make pull bar 3, internal gasket 8, laminated spring inner edge 32, outer pad 7 and gland nut 6 are fixed into entirety, afterwards upper cover 1 to be installed on base 2 and to be screwed, pull bar 3 again through upper cover pilot hole 10 is connected directly between on spring tension and compression testing machine, thus laminated spring inner edge 32 is connected with spring tension and compression testing machine, finally the lower end plane 19 of base 2 is placed on the work top of spring tension and compression testing machine, and by screw through base lower end fixed orifice 20, base 2 and spring tension and compression testing machine is made to be fixed into an entirety, thus the proving installation of a kind of linear compressor spiral laminated spring axial rigidity of common composition.
The manufacture method of the proving installation of the linear compressor laminated spring axial rigidity invented is as follows:
Upper cover 1, base 2, pull bar 3 and gland nut 6 are made by the metal material that tensile strength, compressive strength and fatigue strength are larger; Use fine turning lathe to go out upper cover pilot hole 10 at the centre finish turning of upper cover 1, ensure that the central axis of upper cover pilot hole 10 and the verticality of upper cover lower end plane 13 are between 1.0 ~ 2.0 μm; Use fine turning lathe to process the upper cover back-up ring cylindrical 11 protruded on upper cover lower end plane 13 in the downside of upper cover 1, and use precision drilling machine to process the upper cover fixed orifice 12 of evenly arranging along the outer marginal circumference of upper cover 1; On the base of base 2, the outer rim of transverse plane 14 uses precision machine tool to coordinate tapping processes to go out base threaded upper ends hole 17, and uses fine turning lathe to process a step downwards along transverse plane on base 14; Use fine turning lathe to process base trade union college face 16 near centre position in the inside of base 2, and use precision grinder to grind, ensure that the flatness in base trade union college face 16 is between 1.0 ~ 2.0 μm; Use fine turning lathe to coordinate tapping technique on base trade union college face 16, process the same number of workpiece retaining thread hole 18 with laminated spring outer rim fixed orifice 34, ensure that the central axis in workpiece retaining thread hole 18 and the verticality in trade union college face 16 are between 1.0 ~ 2.0 μm; Use fine turning lathe on base lower end plane 19, process base lower end fixed orifice 20, ensure that the verticality of base lower end fixed orifice 20 and base lower end plane 19 is between 2.0 ~ 3.0 μm; Precision machine tool is used to process pull bar clamping plane 23, pull bar lower end cylindrical 24 and pull bar lower end external thread 25 successively near lower end position in the middle of pull bar 3; Outer washer 4, inner washer 5, outer pad 7 and internal gasket 8 all use precision machine tool to be processed into annular flake, and use precision grinder grinding to make the flatness of the surfaces externally and internally of four all be between 1.0 ~ 2.0 μm, use precision drilling machine to process respectively and the same number of outer washer fixed orifice 27 of laminated spring outer rim fixed orifice 34 and inner washer fixed orifice 26 along the circumference of outer washer 4 and inner washer 5, use the center of precision drilling machine pad 7 and internal gasket 8 to be outside processed with outer pad center pit 29 and internal gasket center pit 28 respectively; Fine turning lathe is used to repair and use precision grinder to grind, ensure the consistency of thickness of internal gasket 8 and inner washer 5, thickness deviation absolute value is between 1.0 ~ 2.0 μm, and ensures the consistency of thickness of outer pad 7 and outer washer 4, and thickness deviation absolute value is between 1.0 ~ 2.0 μm; Fine turning lathe finishing is used to ensure that the thickness of outer pad 7 exceedes the thickness of internal gasket 8 between 5.0 ~ 8.0 μm; Pull bar 3 and base 2 are connected on spring tension and compression testing machine respectively by pull bar upper external screw thread 21 and base lower end fixed orifice 20.
The invention has the advantages that:
1) fixed by the high precision of base, and the movement locus of pull bar is strictly limited by upper cover fixed guide hole, make the plane of the Impact direction exact vertical of spiral laminated spring and laminated spring and through the center of laminated spring, avoid the stressed biased problem of spiral laminated spring because the deviation when its own interfaces error of spring tension and compression testing machine and proving installation are installed causes to greatest extent;
2) apparatus of the present invention are by the careful design of internal outer washer, inside and outside pad and making, ensure that spiral laminated spring is in installation and actual testing process, the deformation that spiral laminated spring is occurred strictly limits in the axial direction, and the inner edge of laminated spring is with the stressed reverse parallel of outer rim and always perpendicular to laminated spring plane.
Use the stressed biased and Bending Deformation of laminated spring that proving installation of the present invention will produce when eliminating test spiral laminated spring axial rigidity to greatest extent; axial rigidity measured value more accurately can be obtained, very positive effect is all played to the optimal design of spiral laminated spring and even the development of linear compressor.
Accompanying drawing explanation
Fig. 1 is the overall sectional view of invented linear compressor spiral laminated spring axial rigidity proving installation;
Fig. 2 is the cut-open view of upper cover 1;
Fig. 3 is the cut-open view of base 2;
Fig. 4 is the cut-open view of pull bar 3;
Fig. 5 is the planimetric map of spiral laminated spring 9;
Fig. 6 is the 3-D view of outer washer 4;
Fig. 7 is the 3-D view of inner washer 5;
Fig. 8 is the 3-D view of outer pad 7;
Fig. 9 is the 3-D view of internal gasket 8;
Figure 10 is the 3-D view of gland nut 6.
Wherein, 1 is upper cover; 2 is base; 3 is pull bar; 4 is outer washer; 5 is inner washer; 6 is gland nut; 7 is outer pad; 8 is internal gasket; 9 is spiral laminated spring; 10 is upper cover pilot hole; 11 is upper cover back-up ring cylindrical; 12 is upper cover fixed orifice; 13 is upper cover lower end plane; 14 is transverse plane on base; 15 is base location inner headed face; 16 is base trade union college face; 17 is base threaded upper ends hole; 18 is workpiece retaining thread hole; 19 is base lower end plane; 20 is base lower end fixed orifice; 21 is pull bar threaded upper ends hole; 22 is pull bar upper end cylindrical; 23 is pull bar clamping plane; 24 is pull bar lower end cylindrical; 25 is pull bar lower end threaded hole; 26 is inner washer fixed orifice; 27 is outer washer fixed orifice; 28 is internal gasket center pit; 29 is outer pad center pit; 30 is nut clamping plane; 31 is laminated spring outer rim; 32 is laminated spring inner edge; 33 is laminated spring center pit; 34 is laminated spring outer rim fixed orifice.
Embodiment
Below in conjunction with drawings and Examples, the specific embodiment of the present invention is described in further detail.
The proving installation of the linear compressor spiral laminated spring axial rigidity invented is made up of upper cover 1, base 2, pull bar 3, outer washer 4, inner washer 5, gland nut 6, outer pad 7, internal gasket 8, it is characterized in that, upper cover 1 centrally has for moving up and down to pull bar 3 the upper cover pilot hole 10 playing guide effect, be manufactured with the upper cover back-up ring cylindrical 11 with base 2 location fit on the upper cover lower end plane 13 of upper cover 1, be processed with the upper cover fixed orifice 12 of evenly arrangement in the outer rim of upper cover lower end plane 13, on the base of base 2, the outer rim of transverse plane 14 is processed with the base threaded upper ends hole 17 being used for fixing upper cover 1, a step is processed downwards along transverse plane on base 14, be made into the base matched with upper cover back-up ring cylindrical 11 and locate inner headed face 15, the inside of base 2 is processed with the base trade union college face 16 for installing inner washer 5 and spiral laminated spring 9 near centre position, base trade union college face 16 is processed with and is used for fixing inner washer 5, the workpiece retaining thread hole 18 of spiral laminated spring 9 and outer washer 4, base lower end plane 19 is processed with the base lower end fixed orifice 20 being used for fixing whole axial rigidity pick-up unit, process a step near lower end position in the middle of pull bar 3, the lower surface of step is pull bar clamping plane 23, is respectively pull bar lower end cylindrical 24 and pull bar lower end external thread 25 under pull bar clamping plane 23, internal gasket center pit 28, laminated spring center pit 33 and outer pad center pit 29 are enclosed within pull bar lower end cylindrical 24 successively, and entirety is fixed under the squeezing action being arranged on the gland nut 6 on pull bar lower end external thread 25, pull bar upper end cylindrical 22 is upward through upper cover pilot hole 10, and the pull bar upper external screw thread 21 on pull bar 3 top is connected with spring tension and compression testing machine, keep the consistency of thickness of internal gasket 8 and inner washer 5, and keep the consistency of thickness of outer pad 7 and outer washer 4, and outer pad 7 is larger than the thickness of internal gasket 8, to ensure there is enough intensity when compressing spiral laminated spring 9, inner washer 5 is arranged on base trade union college face 16, plays the effect supporting spiral laminated spring 9, the laminated spring outer rim 31 of spiral laminated spring 9 is interposed in centre by inner washer 5 and outer washer 4, and by being fixed on base trade union college face 16 through the screw of outer washer fixed orifice 27, laminated spring outer rim fixed orifice 34 and inner washer fixed orifice 26, thus the laminated spring outer rim 31 of spiral laminated spring 9 is made to connect into entirety with base 2, the laminated spring inner edge 32 of spiral laminated spring 9 is interposed in centre by internal gasket 8 and outer pad 7, pull bar lower end cylindrical 24 is successively through internal gasket center pit 28, laminated spring center pit 33 and outer pad center pit 29, pull bar clamping plane 23 connects with the end face of internal gasket 8, gland nut 6 is screwed on pull bar lower end external thread 25, tighten gland nut 6, make pull bar 3, internal gasket 8, laminated spring inner edge 32, outer pad 7 and gland nut 6 are fixed into entirety, afterwards upper cover 1 to be installed on base 2 and to be screwed, pull bar 3 again through upper cover pilot hole 10 is connected directly between on spring tension and compression testing machine, thus laminated spring inner edge 32 is connected with spring tension and compression testing machine, finally the lower end plane 19 of base 2 is placed on the work top of spring tension and compression testing machine, and by screw through base lower end fixed orifice 20, base 2 and spring tension and compression testing machine is made to be fixed into an entirety, thus the proving installation of a kind of linear compressor spiral laminated spring axial rigidity of common composition.
The manufacture method of the proving installation of the linear compressor laminated spring axial rigidity invented is as follows:
Upper cover 1, base 2, pull bar 3 and gland nut 6 are made by the metal material that tensile strength, compressive strength and fatigue strength are larger; Use fine turning lathe to go out upper cover pilot hole 10 at the centre finish turning of upper cover 1, ensure that the central axis of upper cover pilot hole 10 and the verticality of upper cover lower end plane 13 are 1.5 μm; Use fine turning lathe to process the upper cover back-up ring cylindrical 11 protruded on upper cover lower end plane 13 in the downside of upper cover 1, and use precision drilling machine to process the upper cover fixed orifice 12 of evenly arranging along the outer marginal circumference of upper cover 1; On the base of base 2, the outer rim of transverse plane 14 uses precision machine tool to coordinate tapping processes to go out base threaded upper ends hole 17, and uses fine turning lathe to process a step downwards along transverse plane on base 14; Use fine turning lathe to process base trade union college face 16 near centre position in the inside of base 2, and use precision grinder to grind, ensure that the flatness in base trade union college face 16 is 1.5 μm; Use fine turning lathe to coordinate tapping technique on base trade union college face 16, process the same number of workpiece retaining thread hole 18 with laminated spring outer rim fixed orifice 34, ensure that the central axis in workpiece retaining thread hole 18 and the verticality in trade union college face 16 are 1.5 μm; Use fine turning lathe on base lower end plane 19, process base lower end fixed orifice 20, ensure that base lower end fixed orifice 20 is 2.5 μm with the verticality of base lower end plane 19; Precision machine tool is used to process pull bar clamping plane 23, pull bar lower end cylindrical 24 and pull bar lower end external thread 25 successively near lower end position in the middle of pull bar 3; Outer washer 4, inner washer 5, outer pad 7 and internal gasket 8 all use precision machine tool to be processed into annular flake, and use precision grinder grinding to make the flatness of the surfaces externally and internally of four be 1.5 μm, use precision drilling machine to process respectively and the same number of outer washer fixed orifice 27 of laminated spring outer rim fixed orifice 34 and inner washer fixed orifice 26 along the circumference of outer washer 4 and inner washer 5, use the center of precision drilling machine pad 7 and internal gasket 8 to be outside processed with outer pad center pit 29 and internal gasket center pit 28 respectively; Use fine turning lathe repair and use precision grinder to grind, ensure the consistency of thickness of internal gasket 8 and inner washer 5, thickness deviation absolute value is 1.5 μm, and ensures the consistency of thickness of outer pad 7 and outer washer 4, and thickness deviation absolute value is 1.5 μm; The thickness using the thickness of the outer pad 7 of fine turning lathe finishing guarantee to exceed internal gasket 8 is 6.0 μm; Pull bar 3 and base 2 are connected on spring tension and compression testing machine respectively by pull bar upper external screw thread 21 and base lower end fixed orifice 20.
Claims (2)
1. the proving installation of a linear compressor spiral laminated spring axial rigidity, it comprises upper cover (1), base (2), pull bar (3), outer washer (4), inner washer (5), gland nut (6), outer pad (7), internal gasket (8), it is characterized in that:
Described upper cover (1) centrally has for moving up and down to pull bar (3) the upper cover pilot hole 10 playing guide effect, be manufactured with the upper cover back-up ring cylindrical (11) with base (2) location fit on the upper cover lower end plane (13) of upper cover (1), be processed with the upper cover fixed orifice (12) of evenly arrangement in the outer rim of upper cover lower end plane (13);
On the base of described base (2), the outer rim of transverse plane (14) is processed with the base threaded upper ends hole (17) being used for fixing upper cover (1), a step is processed downwards along transverse plane on base (14), be made into the base matched with upper cover back-up ring cylindrical (11) and locate inner headed face (15), the inside of base (2) is processed with the base trade union college face (16) for installing inner washer (5) and spiral laminated spring (9) near centre position, base trade union college face (16) is processed with and is used for fixing inner washer (5), the workpiece retaining thread hole (18) of spiral laminated spring (9) and outer washer (4), base lower end plane (19) is processed with base lower end fixed orifice (20) being used for fixing whole axial rigidity pick-up unit,
A step is processed near lower end position in the middle of described pull bar (3), the lower surface of step is pull bar clamping plane (23), is respectively pull bar lower end cylindrical (24) and pull bar lower end external thread (25) under pull bar clamping plane (23); Internal gasket center pit (28), laminated spring center pit (33) and outer pad center pit (29) are enclosed within pull bar lower end cylindrical (24) successively, and entirety is fixed under the squeezing action being arranged on the gland nut (6) on pull bar lower end external thread (25), pull bar upper end cylindrical (22) is upward through upper cover pilot hole (10), and the pull bar upper external screw thread (21) on pull bar (3) top is connected with spring tension and compression testing machine; Keep the consistency of thickness of internal gasket (8) and inner washer (5), and keep the consistency of thickness of outer pad (7) and outer washer (4), and outer pad (7) is larger than the thickness of internal gasket (8), to ensure there is enough intensity when compressing spiral laminated spring (9);
Described inner washer (5) is arranged on base trade union college face (16), plays the effect supporting spiral laminated spring (9), the laminated spring outer rim (31) of spiral laminated spring (9) is interposed in centre by inner washer (5) and outer washer (4), and by being fixed on base trade union college face (16) through the screw of outer washer fixed orifice (27), laminated spring outer rim fixed orifice (34) and inner washer fixed orifice (26), thus the laminated spring outer rim (31) of spiral laminated spring (9) and base (2) is made to connect into entirety, the laminated spring inner edge (32) of spiral laminated spring (9) is interposed in centre by internal gasket (8) and outer pad (7), pull bar lower end cylindrical (24) is successively through internal gasket center pit (28), laminated spring center pit (33) and outer pad center pit (29), pull bar clamping plane (23) connects with the end face of internal gasket (8), gland nut (6) is screwed on pull bar lower end external thread (25), tighten gland nut (6), make pull bar (3), internal gasket (8), laminated spring inner edge (32), outer pad (7) and gland nut (6) are fixed into entirety, afterwards upper cover (1) is installed to base (2) go up and be screwed, pull bar (3) again through upper cover pilot hole (10) is connected directly between on spring tension and compression testing machine, thus laminated spring inner edge (32) is connected with spring tension and compression testing machine, finally the lower end plane (19) of base (2) is placed on the work top of spring tension and compression testing machine, and by screw through base lower end fixed orifice 20, base (2) and spring tension and compression testing machine is made to be fixed into an entirety, thus the proving installation of a kind of linear compressor spiral laminated spring axial rigidity of common composition.
2. one kind manufactures the method for the proving installation of linear compressor laminated spring axial rigidity as claimed in claim 1, it is characterized in that, upper cover (1), base (2), pull bar (3) and gland nut (6) are made by the metal material that tensile strength, compressive strength and fatigue strength are larger, use fine turning lathe to go out upper cover pilot hole (10) at the centre finish turning of upper cover (1), ensure that the central axis of upper cover pilot hole (10) and the verticality of upper cover lower end plane (13) are between 1.0 ~ 2.0 μm, use fine turning lathe to process the upper cover back-up ring cylindrical (11) protruded on upper cover lower end plane (13) in the downside of upper cover (1), and use precision drilling machine to process the upper cover fixed orifice (12) of evenly arranging along the outer marginal circumference of upper cover (1), on the base of base (2), the outer rim of transverse plane (14) uses precision machine tool to coordinate tapping processes to go out base threaded upper ends hole (17), and uses fine turning lathe to process a step downwards along transverse plane on base (14), fine turning lathe is used to process base trade union college face (16) in the inside of base (2) near centre position, and use precision grinder to grind, ensure that the flatness in base trade union college face (16) is between 1.0 ~ 2.0 μm, use fine turning lathe to coordinate tapping technique to process on base trade union college face (16) and laminated spring outer rim fixed orifice (34) the same number of workpiece retaining thread hole (18), ensure that the central axis in workpiece retaining thread hole (18) and the verticality of trade union college face (16) are between 1.0 ~ 2.0 μm, use fine turning lathe to process base lower end fixed orifice 20 on base lower end plane (19), ensure that the verticality of base lower end fixed orifice (20) and base lower end plane (19) is between 2.0 ~ 3.0 μm, precision machine tool is used to process pull bar clamping plane (23), pull bar lower end cylindrical (24) and pull bar lower end external thread (25) successively near lower end position in the middle of pull bar (3), outer washer (4), inner washer (5), outer pad (7) and internal gasket (8) all use precision machine tool to be processed into annular flake, and use precision grinder grinding to make the flatness of the surfaces externally and internally of four all be between 1.0 ~ 2.0 μm, precision drilling machine is used to process the same number of outer washer fixed orifice (27) and inner washer fixed orifice (26) with laminated spring outer rim fixed orifice (34) respectively along the circumference of outer washer (4) and inner washer (5), the center of precision drilling machine pad (7) and internal gasket (8) is outside used to be processed with outer pad center pit (29) and internal gasket center pit (28) respectively, fine turning lathe is used to repair and use precision grinder to grind, ensure the consistency of thickness of internal gasket (8) and inner washer (5), thickness deviation absolute value is between 1.0 ~ 2.0 μm, and ensureing the consistency of thickness of outer pad (7) and outer washer (4), thickness deviation absolute value is between 1.0 ~ 2.0 μm, fine turning lathe finishing is used to ensure that the thickness of outer pad (7) exceedes the thickness of internal gasket (8) between 5.0 ~ 8.0 μm, pull bar (3) and base (2) are connected on spring tension and compression testing machine respectively by pull bar upper external screw thread (21) and base lower end fixed orifice (20).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104895776A (en) * | 2015-05-04 | 2015-09-09 | 浙江大学 | Method for indirectly measuring spring rigidity of linear compressor and mover mass |
| CN106051036A (en) * | 2016-07-21 | 2016-10-26 | 上海理工大学 | Equiangular-spiral leaf spring |
| CN110043442A (en) * | 2019-04-19 | 2019-07-23 | 上海理工大学 | The error-correction structure of sterlin refrigerator linear compressor piston biasing |
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| CN104895776A (en) * | 2015-05-04 | 2015-09-09 | 浙江大学 | Method for indirectly measuring spring rigidity of linear compressor and mover mass |
| CN104895776B (en) * | 2015-05-04 | 2017-01-04 | 浙江大学 | A kind of indirect measurement Linearkompressor spring rate and the method for mover quality |
| CN106051036A (en) * | 2016-07-21 | 2016-10-26 | 上海理工大学 | Equiangular-spiral leaf spring |
| CN110043442A (en) * | 2019-04-19 | 2019-07-23 | 上海理工大学 | The error-correction structure of sterlin refrigerator linear compressor piston biasing |
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| CN104330248B (en) | 2016-12-07 |
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