CN110439945A - A kind of linear flat spring of refrigeration compressor assembly type - Google Patents
A kind of linear flat spring of refrigeration compressor assembly type Download PDFInfo
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- CN110439945A CN110439945A CN201910754995.3A CN201910754995A CN110439945A CN 110439945 A CN110439945 A CN 110439945A CN 201910754995 A CN201910754995 A CN 201910754995A CN 110439945 A CN110439945 A CN 110439945A
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- arm
- spring arm
- fixed
- gasket
- spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F3/00—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic
- F16F3/02—Spring units consisting of several springs, e.g. for obtaining a desired spring characteristic with springs made of steel or of other material having low internal friction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F2230/00—Purpose; Design features
- F16F2230/0035—Gripping
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- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The present invention provides a kind of linear flat springs of refrigeration compressor assembly type, including the outer fixing gasket for installing positioning, interior fixing gasket, at least identical helical spring arm of two-strip structure；The center of interior fixing gasket is equipped with the axis hole being installed on the piston shaft of refrigeration compressor, and the periphery of interior fixing gasket is equipped with no less than two and the equally distributed first spring arm mounting groove for being used to install helical spring arm one end；Outer fixing gasket is equipped with the mounting hole mutually fixed with the pedestal of refrigeration compressor, and the periphery of outer fixing gasket is equipped with no less than two and the equally distributed second spring arm mounting groove for being used to install the helical spring arm other end.The linear flat spring of refrigeration compressor assembly type of the invention is applied in refrigeration compressor, it can be with disassembled and assembled freely, power-deflection characteristic curve of spring is linear, meet the linear force needs of Linearkompressor piston shaft axial direction, spring arm can effective dispersive stress, have compared with the high life, improves the reliability of compressor entirety.
Description
Technical field
The present invention relates to the technical fields of spring, and in particular to linear flat spring more particularly to a kind of refrigeration compressor are used
The linear flat spring of assembly type.
Background technique
Linearkompressor is one kind of reciprocating-piston compressor, wherein the support technology of flat spring is Linearkompressor
Key technology.Linear motor driving piston does reciprocating linear motion in the cylinder, and flat spring is connected by piston shaft with piston,
As the elastomeric element of a period of time system, support piston and electronics mover assembly, it is desirable that flat spring have enough axial rigidities and
The axially reciprocating of stroke guarantee piston.Relative to traditional cylindrical spring, flat spring has biggish radial rigidity, can
Guarantee piston linear reciprocating motion in will not be deviateed due to vibration equilbrium position generate radial displacement, guarantee cylinder and piston it
Between clearance seal, avoid leakage loss, improve the whole efficiency and reliability of compressor.
Flat spring in the prior art generally includes linear arm flat spring and swirl arm flat spring, both flat springs are general
It is the thin spring leaf of plane, it is very big to be designed to radial rigidity, and axial rigidity very little, general one group or array flat spring piece
Applied in Linearkompressor, spring leaf is interfered in order to prevent when using in groups will also increase washer between spring leaf, this
Increase the quality of compressor entirety.Both flat springs will be by changing molded line, thickness and arm is wide etc. adjusts flat spring
Quality certainly will will affect the rigidity and stress of flat spring again, and molded line is complicated, and production cost is higher.
According to electromagnetic field correlation theory, what linear motor applied piston is one axially absolute parallel linear with piston
Power, thus theoretically, it should linear flat spring is used, compressor even running can be effectively ensured, improve the reliability of complete machine.
This field needs a kind of structure simple, can freely assemble, at the same meet certain radial rigidity, axial rigidity, from
The linear flat spring of right frequency and fatigue strength application demand, being applied to Linearkompressor has more preferably using effect and economy
Value.
Axial rigidity, radial rigidity, fatigue strength and the natural frequency of vibration of flat spring are 4 important performances ginsengs of flat spring
Number.Flat spring makees high speed reciprocating motion with compressor, and according to need of work, spring is moved back and forth more than 2,000,000,000 times, it is desirable that plate bullet
Stress distribution is uniform when spring works, and avoids stress concentration phenomenon, and maximum stress will be much smaller than the fatigue limit of material, guarantee plate bullet
The spring service life with higher.It is broken to avoid flat spring arm and compressor from moving generation resonance, it is desirable that the fortune of Linearkompressor
Line frequency avoids the natural frequency of vibration of flat spring.
The patent of Patent No. CN105757152A discloses a kind of flat spring, plate spring groups and compressor, the patent No.
A kind of equiangular spiral flat spring is disclosed for the patent of CN106051036A, it is smaller all to there is axial rigidity, wants meeting rigidity
The problem of being needed in the case where asking using multiple groups flat spring.The patent of Patent No. CN108167359A discloses a kind of Archimedes
Helical flat spring, the volution trough end of a period end seal mode of closing is two sections of differently curved directions and tangent circular arc each is tangent with vortex
The outer molded line and interior molded line of slot, closed end Profile Design and expression are complicated, and mechanical processing difficulty is larger, and concentrated stress is excessive.
Summary of the invention
In view of the above technical problems, the purpose of the present invention is to provide a kind of linear plate bullets of refrigeration compressor assembly type
Spring has biggish axial rigidity and radial rigidity, and working life needed for compressor is met in fatigue limit can be free
Dismounting, and power-deflection characteristic curve of spring is linear, meets the linear force needs of Linearkompressor piston shaft axial direction.
To achieve the above object, the present invention provides a kind of linear flat springs of refrigeration compressor assembly type, including are used for
Install positioning outer fixing gasket, interior fixing gasket, be connected between the outer fixing gasket and interior fixing gasket at least two
The identical helical spring arm of structure；The center of the interior fixing gasket is equipped with and is installed on the piston shaft of refrigeration compressor
The periphery of axis hole, interior fixing gasket is equipped with no less than two and equally distributed for installing the first of helical spring arm one end
Spring arm mounting groove；The outer fixing gasket is equipped with the mounting hole mutually fixed with the pedestal of refrigeration compressor, outer fixing gasket
Periphery be equipped with no less than two and equally distributed for installing the second spring arm mounting groove of the helical spring arm other end；
The helical spring arm includes that sequentially connected head end straight pin, first segment linear arm, first segment transition arm, spiral circle are gradually opened
Line arm, second segment transition arm, second segment linear arm and trailing cylindrical pin.
By upper, spring arm can be with disassembled and assembled freely and combination, when spring is subjected to displacement deformation at work, and the spring arm is first
Twisting resistance caused by end cylinder plunger can effectively weaken due to the axial movement of interior fixing gasket, avoids spring arm stress from concentrating,
And power-deflection characteristic curve of the linear flat spring of refrigeration compressor assembly type of the present invention is linear, is used for linear compression
It in machine, can satisfy compressor linear rigidity loading demands, improve the reliability of compressor entirety.
Further, the first spring arm mounting groove of the interior fixing gasket includes the head end with the helical spring arm
The first of fixed pin cooperation fixes cotter way and the first fixed arm with the first segment linear arm cooperation of the helical spring arm
The junction of slot, the described first fixed cotter way and the first fixed arm slot uses arc transition, the tail end of the first fixed arm slot
Using arc transition.
Optionally, the first of the first spring arm mounting groove the fixed cotter way is cylinder groove, and radius and the head end are solid
The radius of rationed marketing is equal；The center line of the fixed cotter way of the first of the first spring arm mounting groove is tangential on the interior fixing gasket
Inside and outside circle between middle circle；The fixed cotter way of the first of the first spring arm mounting groove is cylinder groove, radius with it is described
The radius of helical spring arm is equal.
Further, the center line of the helical spring arm is by sequentially connected straight line, first article of transition circle
Arc, three-dimensional spiral circle involute, Article 2 transition arc and Article 2 rectilinear(-al)；Described first pass straight through it is described interior solid
Determine the center of washer, the Article 2 passes straight through the center of the outer fixing gasket；
The equation of the three-dimensional spiral circle involute in cartesian coordinate system are as follows:
X=r (cos θ+θ sin θ)；Y=r (sin θ-θ cos θ)；Z=ht；
Wherein, r is base radius, and θ is that involute opens up angle, and h is involute head and the tail difference in height, and t is variable.
Preferably, the both ends of first article of transition arc each are tangent with the straight line and the three-dimensional spiral
Circle involute；
The both ends of the Article 2 transition arc each are tangent with the three-dimensional spiral circle involute and Article 2 straight line.
Preferably, the interior fixing gasket is divided into the identical interior upper gasket of structure and interior lower gasket, sets in interior fixing gasket
There are no less than two and equally distributed fixation hole；The interior upper gasket and interior lower gasket are cooperated by fixation hole locking,
Head end for clamp cylinders shape spring arm；Centre of the center of circle of the fixation hole between the inside and outside circle of the interior fixing gasket
On circle.
Further, the second spring arm mounting groove of the outer fixing gasket includes the tail end with the helical spring arm
The second of fixed pin cooperation fixes cotter way and the second fixed arm slot with the second segment linear arm cooperation of helical spring arm, institute
The junction of the second fixed cotter way and the second fixed arm slot is stated using arc transition, the tail end of the second fixed arm slot is using circle
Arc transition.
Preferably, the second of the second spring arm mounting groove the fixed cotter way is cylinder groove, radius and tail end circle
The radius of pin is equal；The center line of the fixed cotter way of the second of the second spring arm mounting groove is tangential on the outer fixing gasket
Inside and outside circle between middle circle；The fixed cotter way of the second of the second spring arm mounting groove is cylinder groove, radius with it is described
The radius of helical spring arm is equal.
Optionally, the outer fixing gasket is divided into the identical outer upper gasket of structure and outer lower gasket, the outer upper gasket and
Outer lower gasket is fixedly clamped the tail end of the helical spring arm by mounting hole.
By upper, the linear flat spring of refrigeration compressor assembly type of the invention is by outer fixing gasket, interior fixing gasket, at least
The identical helical spring arm of two-strip structure assembles, and the spring arm is three-dimensional spiral arm, the center line of the spring arm
It is made of two straight lines, a three-dimensional spiral circle involute, two transition arcs.Refrigeration compressor Assembled junction of the invention
Property flat spring be applied in refrigeration compressor, can be with disassembled and assembled freely, and power-deflection characteristic curve of spring is linear, it is full
The linear force of sufficient Linearkompressor piston shaft axial direction needs, spring arm can effective dispersive stress, have compared with the high life, improve compressor
Whole reliability, and have the advantages that
1. the linear flat spring of refrigeration compressor assembly type of the invention is by outer fixing gasket, interior fixing gasket, at least two
The identical helical spring arm of structure assembles, convenient for disassembly and assembly, can freely adjust the quantity of spring arm.
2. refrigeration compressor of the invention is three-dimensional spiral arm, spring arm stress with the spring arm of the linear flat spring of assembly type
It is evenly distributed, local stress is small, and the service life is higher.
It is padded 3. the straight pin of the spring arm head end of the linear flat spring of refrigeration compressor assembly type of the invention is fixed inside
Axial rotation can occur in the mounting groove of circle, effectively reduce and caused due to flat spring center displacement deformation to spring arm head end
Twisting resistance.
4. the linear flat spring of refrigeration compressor assembly type of the invention has biggish axial rigidity and radial rigidity, and
Power-deflection characteristic curve of spring is linear, meets the linear force needs of Linearkompressor piston shaft axial direction, for freezing
Linearkompressor has more preferably effect.
Detailed description of the invention
Fig. 1 is the main view of the linear flat spring of refrigeration compressor assembly type of the embodiment of the present invention one；
Fig. 2 is the side view of the linear flat spring of refrigeration compressor assembly type of the embodiment of the present invention one；
Fig. 3 is the interior upper gasket or interior lower gasket of the linear flat spring of refrigeration compressor assembly type of the embodiment of the present invention one
Main view；
Fig. 4 is the longitudinal section view of Fig. 3；
Fig. 5 is the main view of the helical spring arm of the linear flat spring of refrigeration compressor assembly type of the embodiment of the present invention one
Figure；
Fig. 6 is the side view of the helical spring arm of the linear flat spring of refrigeration compressor assembly type of the embodiment of the present invention one
Figure；
Fig. 7 is the outer upper gasket or outer lower gasket of the linear flat spring of refrigeration compressor assembly type of the embodiment of the present invention one
Main view；
Fig. 8 is the longitudinal section view of Fig. 7；
Fig. 9 is that the linear flat spring of refrigeration compressor assembly type of the embodiment of the present invention one applies axial displacement and corresponding axis
To the response curve of power；
Figure 10 is the main view of the linear flat spring of refrigeration compressor assembly type of the embodiment of the present invention two；
Figure 11 is the side view of the linear flat spring of refrigeration compressor assembly type of the embodiment of the present invention two；
Figure 12 is the interior upper gasket or interior underlay of the linear flat spring of refrigeration compressor assembly type of the embodiment of the present invention two
The main view of circle；
Figure 13 is the master of the helical spring arm of the linear flat spring of refrigeration compressor assembly type of the embodiment of the present invention two
View；
Figure 14 is the side of the helical spring arm of the linear flat spring of refrigeration compressor assembly type of the embodiment of the present invention two
View；
Figure 15 is the outer upper gasket or outer underlay of the linear flat spring of refrigeration compressor assembly type of the embodiment of the present invention two
The main view of circle；
Figure 16 is that the linear flat spring of refrigeration compressor assembly type of the embodiment of the present invention two applies axial displacement and corresponding
The response curve of axial force.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment, any modification, equivalent replacement, improvement and so on should all include within protection scope of the present invention.
Refrigeration compressor of the invention is described in detail with the linear flat spring of assembly type referring to Fig. 1 to Figure 16, this hair
Bright refrigeration compressor is primarily adapted for use in linear refrigeration compressor with the linear flat spring of assembly type, including for installing the outer of positioning
Fixing gasket, the identical helical spring arm of interior fixing gasket, at least two-strip structure.The interior fixing gasket and outer fixing gasket
With one heart, and the spring arm is uniformly distributed along the interior fixing gasket center.
As shown in Fig. 1 and Figure 10, a plurality of helical spring arm is uniformly distributed centered on the interior fixing gasket, head end
Straight pin and the spring arm mounting groove of first segment linear arm and the interior fixing gasket, which assemble, to be cooperated, trailing cylindrical pin and second
The spring arm mounting groove of section linear arm and the outer fixing gasket, which assembles, to be cooperated.
The interior upper gasket of the interior fixing gasket is locked with interior lower gasket by fixation hole, is pacified by the axis hole at center
On piston shaft loaded on refrigeration linear compressor.The outer upper gasket and outer lower gasket of the outer fixing gasket pass through mounting hole and system
The pedestal of cold Linearkompressor is mutually fixed.
Helical spring arm of the invention include head end straight pin, first segment linear arm, first segment transition arm, spiral circle gradually
Burst at the seams arm, second segment transition arm, second segment linear arm, trailing cylindrical pin.Correspondingly, the center line of the helical spring arm by
Two straight lines, a three-dimensional spiral circle involute and two transition arc compositions.
First positioned at head end of helical spring arm center line of the invention passes straight through the interior fixing gasket
Center passes straight through the center of the outer fixing gasket positioned at the Article 2 of tail end；The three of the helical spring arm center line
Tieing up the equation of spiral circle involute in cartesian coordinate system is x=r (cos θ+θ sin θ)；Y=r (sin θ-θ cos θ)；Z=
ht；Wherein, r is base radius, and θ is that involute opens up angle, and h is involute head and the tail difference in height, and t is variable, round gradually in three-dimensional spiral
It bursts at the seams in equation, involute exhibition angle θ takes 300 °~600 °.
In addition, the vertical and intersectant centerline of the head end straight pin of helical spring arm is in the first of the helical spring arm
The center line of section linear arm, that is, head end straight pin is vertically disposed with first segment linear arm, and the cylinder fixed pin is straight
Diameter is equal to the diameter of the helical spring arm.The vertical and intersectant centerline of the trailing cylindrical pin of the helical spring arm is in institute
State the center line of the second segment linear arm of helical spring arm, that is, trailing cylindrical pin with second segment linear arm be it is vertically disposed,
And the diameter of trailing cylindrical pin is equal to the diameter of the helical spring arm.The first segment transition arm of the helical spring arm
The head end of center line is tangential on the center line of first segment linear arm, and tail end is tangential on the three-dimensional spiral circle involute.It is described
The head end of the center line of the second segment transition arm of helical spring arm is tangential on the three-dimensional spiral circle involute, and tail end is tangent
In the center line of second segment linear arm；The center line of the second segment linear arm of the helical spring arm passes through the outer fixed pad
The center of circle.
Helical spring arm of the invention is cylinder, and diameter is the three-dimensional spiral arm of steady state value.
Embodiment one
As shown in Figures 1 to 9, the flat spring in this example includes the identical two axially symmetric helical springs of structure
Arm 3 and outer fixing gasket 1,2 and interior fixing gasket 4,5.
As shown in figure 3, interior fixing gasket 4,5 includes a centrally located axis hole 10, two equally distributed fixation holes
8, two equally distributed spring arm mounting grooves 9；The center of circle of the fixation hole 8 of the interior fixing gasket 4,5 is in the interior fixed pad
It encloses in the middle circle between 4,5 inside and outside circles；The spring arm mounting groove 9 of the interior fixing gasket 4,5 includes and the cylindrical bullet
The the first fixed cotter way and the first segment linear arm 32 with the helical spring arm 3 that the head end fixed pin 31 of spring arm 3 cooperates
The junction of first fixed arm slot of cooperation, the first fixed cotter way and the first fixed arm slot is using arc transition, and described the
The tail end of one fixed arm slot uses arc transition.
4,5 points of interior fixing gasket of the present embodiment are the identical interior upper gasket 4 of structure and interior lower gasket 5, and interior upper gasket 4
Pass through the locking cooperation of fixation hole 8, the head end of the fixed helical spring arm 3 with interior lower gasket 5.Interior upper gasket 4 and interior underlay
The fixed cotter way of first of spring arm mounting groove 9 on circle 5 is semicolumn slot, radius 2mm；The bullet of the interior fixing gasket 4,5
The center line of the fixed cotter way of the first of spring arm mounting groove 9 is tangential on the middle circle between the interior fixing gasket 4,5 inside and outside circles.It is interior
First fixed arm slot of the spring arm mounting groove 9 of upper gasket 4 and interior lower gasket 5 is semicolumn slot, radius 2mm.
As shown in Figure 1, the angle of two helical spring arms 3 is 180 °, the diameter of helical spring arm 3 is 4mm, cylindrical
The diameter of the head end straight pin 31 of spring arm 3 is 4mm, and the length of first segment linear arm 32 is 10mm, and head end straight pin 31 with
First segment linear arm 32 is vertically arranged, first segment transition arm 33 respectively with 34 mistake of first segment linear arm 32 and spiral circle involute arm
Connection is crossed, second segment transition arm 35 is connect with spiral circle involute arm 34 and 36 transition of second segment linear arm respectively, and second segment is straight
The length of line arm 36 is 10mm, and the diameter of trailing cylindrical pin 37 is 4mm, and trailing cylindrical pin 37 is vertical with second segment linear arm 36
Setting.The center line of spiral circle involute arm 34 is by EQUATION x=r (cos θ+θ sin θ)；Y=r (sin θ-θ cos θ)；Z=ht；Really
It is fixed, wherein r=0.1, θ are 500 °, and h 24mm, t are variable.
As shown in Figure 7 and Figure 8, outer fixing gasket 1,2 includes 6 mounting holes 6, two equally distributed spring arm mounting grooves
7；The center of circle of the mounting hole 6 of the outer fixing gasket 1,2 is in the middle circle between the outer fixing gasket 1,2 inside and outside circles；Institute
The spring arm mounting groove 7 for stating outer fixing gasket 1,2 includes second cooperated with the tail end fixed pin 37 of the helical spring arm 3
Fix cotter way and the second fixed arm slot with the cooperation of tail end linear arm 36 of the helical spring arm 3, the second fixed cotter way
Arc transition is used with the junction of the second fixed arm slot, the tail end of the second fixed arm slot uses arc transition.
1,2 point of the outer fixing gasket is the identical outer upper gasket 1 of structure and outer lower gasket 2, and fixed by mounting hole 6
In the tail end for the helical spring arm 3 that in compressor pedestal, is fixedly clamped.The spring of the outer upper gasket 1 and outer lower gasket 2
The fixed cotter way of the second of arm mounting groove 7 is semicolumn slot, radius 2mm；The spring arm mounting groove 7 of the outer fixing gasket 1,2
The center line of the second fixed cotter way be tangential on the middle circle between the outer fixing gasket 1,2 inside and outside circles；The outer upper gasket 1
The second fixed arm slot with the spring arm mounting groove 7 of outer lower gasket 2 is semicolumn slot, radius 2mm.
The refrigeration compressor of embodiment one is imported in finite element analysis software Ansys with the linear flat spring of assembly type and is carried out
Analysis, using the displacement axially applied to flat spring as variable, using the required axial force of corresponding output as target, to flat spring
The displacement range axially applied is 1~10mm, and the response curve of axial displacement Yu required axial force can be obtained, as shown in figure 9,
Power-deflection characteristic curve of spring is linear, according to rigidity formulaWherein F is the power load applied, and X is to become
The displacement of shape, the axial rigidity that can obtain embodiment one is about 11N/mm, can satisfy the needs of Linearkompressor.
Embodiment two
As shown in Figure 10 to Figure 16, the flat spring in this example includes the identical three axially symmetric cylindrical bullets of structure
Spring arm 30 and outer fixing gasket 10,20 and interior fixing gasket 40,50.
As shown in figure 12, interior fixing gasket 40,50 includes a centrally located axis hole 100, and three equally distributed solid
Determine hole 80, three equally distributed spring arm mounting grooves 90；The center of circle of the fixation hole 80 of the interior fixing gasket 40,50 is described
In middle circle between interior fixing gasket 40,50 inside and outside circles；The spring arm mounting groove 90 of the interior fixing gasket 40,50 include with
The first fixed cotter way that the head end fixed pin 301 of the helical spring arm 30 cooperates and with the helical spring arm 30
The junction of the first fixed arm slot that first segment linear arm 302 cooperates, the first fixed cotter way and the first fixed arm slot uses circular arc
The tail end of transition, the first fixed arm slot uses arc transition.
40,50 points of interior fixing gasket of the present embodiment be the identical interior upper gasket 40 of structure and interior lower gasket 50, and it is interior on
Washer 40 and interior lower gasket 50 pass through the locking cooperation of fixation hole 80, the head end of the fixed helical spring arm 30.Interior upper gasket
40 and the first fixed cotter way of spring arm mounting groove 90 of interior lower gasket 50 be semicolumn slot, radius 2mm；The interior fixed pad
The center line of the fixed cotter way of the first of the spring arm mounting groove 90 of circle 40,50 is tangential on the interior fixing gasket 40,50 inside and outside circles
Between middle circle；First fixed arm slot of the spring arm mounting groove 90 of interior upper gasket 40 and interior lower gasket 50 is semicolumn slot,
Radius is 2mm.
As shown in Figure 10, the angle of three helical spring arms 30 is 120 °, and the diameter of helical spring arm 30 is 4mm,
The diameter of the head end straight pin 301 of helical spring arm 30 is 4mm, and the length of first segment linear arm 302 is 10mm, and head end is round
Pin 301 is vertically arranged with first segment linear arm 302, first segment transition arm 303 respectively with first segment linear arm 302 and spiral circle
304 transition of involute arm connection, second segment transition arm 305 respectively with 306 mistake of spiral circle involute arm 304 and second segment linear arm
Cross connection, the length of second segment linear arm 306 is 10mm, and the diameter of trailing cylindrical pin 307 is 4mm, and trailing cylindrical pin 307
It is vertically arranged with second segment linear arm 306.The center line of spiral circle involute arm 304 is by EQUATION x=r (cos θ+θ sin θ)；Y=
r(sinθ-θcosθ)；Z=ht；It determines, wherein r=0.1, θ are 500 °, and h 24mm, t are variable.
As shown in figure 15, outer fixing gasket 10,20 includes 6 mounting holes 60, three equally distributed spring arm mounting grooves
70；Middle circle of the center of circle of the mounting hole 60 of the outer fixing gasket 10,20 between the outer fixing gasket 10,20 inside and outside circles
On；The spring arm mounting groove 70 of the outer fixing gasket 10,20 includes the tail end fixed pin 307 with the helical spring arm 30
The second of cooperation fixes cotter way and the second fixed arm slot with the cooperation of tail end linear arm 306 of the helical spring arm 30,
The junction of second fixed cotter way and the second fixed arm slot uses arc transition, and the tail end of the second fixed arm slot uses circular arc mistake
It crosses.
10,20 points of the outer fixing gasket are the identical outer upper gasket 10 of structure and outer lower gasket 20, and pass through mounting hole
60 are fixed in compressor pedestal, the tail end for the helical spring arm 30 that is fixedly clamped.The outer upper gasket 10 and outer underlay
The fixed cotter way of the second of the spring arm mounting groove 70 of circle 20 is semicolumn slot, radius 2mm；The outer fixing gasket 10,20
The center line of the fixed cotter way of the second of spring arm mounting groove 70 is tangential on the centre between the outer fixing gasket 10,20 inside and outside circles
Circle；Second fixed arm slot of the spring arm mounting groove 70 of the outer upper gasket 10 and outer lower gasket 20 is semicolumn slot, and radius is
2mm。
The refrigeration compressor of embodiment two is imported in finite element analysis software Ansys with the linear flat spring of assembly type and is carried out
Analysis, using the displacement axially applied to flat spring as variable, using the required axial force of corresponding output as target, to flat spring
The displacement range axially applied is 1~10mm, the response curve of axial displacement Yu required axial force can be obtained, such as Figure 16 institute
Show, power-deflection characteristic curve of spring is linear, according to rigidity formulaWherein F is the power load applied, and X is
The displacement of deformation, the axial rigidity that can obtain embodiment two is about 17N/mm, can satisfy the needs of Linearkompressor.
The linear flat spring of refrigeration compressor assembly type of the invention is by outer fixing gasket, interior fixing gasket, at least two
The identical helical spring arm of structure assembles, convenient for disassembly and assembly, can freely adjust the quantity of spring arm.Spring arm can be effective
It reducing since flat spring center displacement deformation is to twisting resistance caused by spring arm head end, stress distribution is uniform, and local stress is small,
Service life is higher, has biggish axial rigidity and radial rigidity, and power-deflection characteristic curve of spring is linear, meets
The linear force of Linearkompressor piston shaft axial direction needs, and has more preferably effect for refrigeration linear compressor, improves compression
The reliability of machine entirety.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on should all include within protection scope of the present invention.
Claims (9)
1. a kind of linear flat spring of refrigeration compressor assembly type, which is characterized in that including the outer fixed pad for installing positioning
Circle, interior fixing gasket, the identical cylinder of at least two-strip structure being connected between the outer fixing gasket and interior fixing gasket
Spring arm；
The center of the interior fixing gasket is equipped with the axis hole being installed on the piston shaft of refrigeration compressor, the periphery of interior fixing gasket
It is equipped with no less than two and equally distributed for installing the first spring arm mounting groove of helical spring arm one end；
The outer fixing gasket is equipped with the mounting hole mutually fixed with the pedestal of refrigeration compressor, and the periphery of outer fixing gasket is equipped with
No less than two and the equally distributed second spring arm mounting groove for being used to install the helical spring arm other end；
The helical spring arm includes sequentially connected head end straight pin, first segment linear arm, first segment transition arm, spiral circle
Involute arm, second segment transition arm, second segment linear arm and trailing cylindrical pin.
2. the linear flat spring of refrigeration compressor assembly type according to claim 1, which is characterized in that the interior fixed pad
The first spring arm mounting groove of circle include with the first fixed cotter way of the head end fixed pin of helical spring arm cooperation and
The the first fixed arm slot cooperated with the first segment linear arm of the helical spring arm, the described first fixed cotter way and first are fixed
The junction of arm slot uses arc transition, and the tail end of the first fixed arm slot uses arc transition.
3. the linear flat spring of refrigeration compressor assembly type according to claim 2, which is characterized in that first spring
The fixed cotter way of the first of arm mounting groove is cylinder groove, and radius is equal with the radius of the head end fixed pin；
The center line of the fixed cotter way of the first of the first spring arm mounting groove be tangential on the interior fixing gasket inside and outside circle it
Between middle circle；
The fixed cotter way of the first of the first spring arm mounting groove is cylinder groove, the radius of radius and the helical spring arm
It is equal.
4. the linear flat spring of refrigeration compressor assembly type according to claim 1, which is characterized in that the cylinder bullet
The center line of spring arm is by sequentially connected straight line, first article of transition arc, three-dimensional spiral circle involute, Article 2 transition
Circular arc and Article 2 rectilinear(-al)；
Described first passes straight through the center of the interior fixing gasket, and the Article 2 passes straight through the outer fixing gasket
Center；
The equation of the three-dimensional spiral circle involute in cartesian coordinate system are as follows:
X=r (cos θ+θ sin θ)；Y=r (sin θ-θ cos θ)；Z=ht；
Wherein, r is base radius, and θ is that involute opens up angle, and h is involute head and the tail difference in height, and t is variable.
5. the linear flat spring of refrigeration compressor assembly type according to claim 4, which is characterized in that first mistake
The both ends for crossing circular arc each are tangent with the straight line and the three-dimensional spiral circle involute；
The both ends of the Article 2 transition arc each are tangent with the three-dimensional spiral circle involute and Article 2 straight line.
6. the linear flat spring of refrigeration compressor assembly type according to claim 1, which is characterized in that the interior fixed pad
Circle is divided into the identical interior upper gasket of structure and interior lower gasket, and interior fixing gasket is equipped with no less than two and equally distributed fixation
Hole；The interior upper gasket and interior lower gasket are by fixation hole locking cooperation, the head end for clamp cylinders shape spring arm；
The center of circle of the fixation hole is in the middle circle between the inside and outside circle of the interior fixing gasket.
7. the linear flat spring of refrigeration compressor assembly type according to claim 1, which is characterized in that the outer fixed pad
The second spring arm mounting groove of circle include with the second fixed cotter way of the tail end fixed pin of helical spring arm cooperation and
The the second fixed arm slot cooperated with the second segment linear arm of helical spring arm, the described second fixed cotter way and the second fixed arm slot
Junction use arc transition, the tail end of the second fixed arm slot uses arc transition.
8. the linear flat spring of refrigeration compressor assembly type according to claim 7, which is characterized in that the second spring
The fixed cotter way of the second of arm mounting groove is cylinder groove, and radius is equal with the radius of the trailing cylindrical pin；
The center line of the fixed cotter way of the second of the second spring arm mounting groove be tangential on the outer fixing gasket inside and outside circle it
Between middle circle；
The fixed cotter way of the second of the second spring arm mounting groove is cylinder groove, the radius of radius and the helical spring arm
It is equal.
9. the linear flat spring of refrigeration compressor assembly type according to claim 1, which is characterized in that the outer fixed pad
Circle is divided into the identical outer upper gasket of structure and outer lower gasket, and the outer upper gasket and outer lower gasket are fixedly clamped institute by mounting hole
State the tail end of helical spring arm.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116006607A (en) * | 2022-12-26 | 2023-04-25 | 上海海洋大学 | Leaf spring for low-temperature refrigerator and low-temperature refrigerator |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003247580A (en) * | 2002-02-26 | 2003-09-05 | Sharp Corp | Flat spring, linear motor compressor, and stirling engine |
| WO2007088340A1 (en) * | 2006-02-01 | 2007-08-09 | Isis Innovation Ltd | Reciprocating thermodynamic machine |
| CN201198826Y (en) * | 2007-12-28 | 2009-02-25 | 中国航天科技集团公司第五研究院第五一〇研究所 | Leaf spring box component |
| CN105179540A (en) * | 2015-08-25 | 2015-12-23 | 同济大学 | Fan-shaped spring arm, leaf spring comprising fan-shaped spring arms, and compressor with leaf springs |
| CN105757152A (en) * | 2014-12-18 | 2016-07-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Plate spring, plate spring set and compressor |
| CN108194548A (en) * | 2017-12-28 | 2018-06-22 | 陕西仙童科技有限公司 | Flat spring, plate spring groups and compressor |
-
2019
- 2019-08-15 CN CN201910754995.3A patent/CN110439945B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003247580A (en) * | 2002-02-26 | 2003-09-05 | Sharp Corp | Flat spring, linear motor compressor, and stirling engine |
| WO2007088340A1 (en) * | 2006-02-01 | 2007-08-09 | Isis Innovation Ltd | Reciprocating thermodynamic machine |
| CN201198826Y (en) * | 2007-12-28 | 2009-02-25 | 中国航天科技集团公司第五研究院第五一〇研究所 | Leaf spring box component |
| CN105757152A (en) * | 2014-12-18 | 2016-07-13 | 珠海格力节能环保制冷技术研究中心有限公司 | Plate spring, plate spring set and compressor |
| CN105179540A (en) * | 2015-08-25 | 2015-12-23 | 同济大学 | Fan-shaped spring arm, leaf spring comprising fan-shaped spring arms, and compressor with leaf springs |
| CN108194548A (en) * | 2017-12-28 | 2018-06-22 | 陕西仙童科技有限公司 | Flat spring, plate spring groups and compressor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116006607A (en) * | 2022-12-26 | 2023-04-25 | 上海海洋大学 | Leaf spring for low-temperature refrigerator and low-temperature refrigerator |
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| CN110439945B (en) | 2021-04-06 |
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