CN104763616B - Compressor - Google Patents
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- CN104763616B CN104763616B CN201510059820.2A CN201510059820A CN104763616B CN 104763616 B CN104763616 B CN 104763616B CN 201510059820 A CN201510059820 A CN 201510059820A CN 104763616 B CN104763616 B CN 104763616B
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Abstract
The invention discloses a compressor, comprising a shell, a compression mechanism, a support rod, a support base and a thrust component; the compression mechanism is arranged in the shell and comprises a main bearing, an air cylinder, a secondary bearing and a crankshaft; the main bearing is arranged at the top of the air cylinder and the secondary bearing is arranged at the bottom of the air cylinder; the crankshaft penetrates through the main bearing, the air cylinder and the secondary bearing in sequence; a central hole is formed inside the crankshaft; a spiral groove is formed in the peripheral wall of the support rod; at least one part of the support rod stretches into and is fixed in the central hole; the support base is arranged at the lower end of the secondary bearing and is constructed to enable a lubricating oil at the bottom of the shell to enter a clearance between the support rod and the central hole; the thrust component is arranged at the lower end of the support rod; the bottom of the thrust component is propped against the support base; and the contact centre of the thrust component and the support base is located on a rotary central line of the crankshaft. According to the embodiment of the invention, the compressor is high in reliability and has good performance.
Description
Technical field
The present invention relates to Compressor Technology field, especially relate to a kind of compressor.
Background technology
Pointing out in correlation technique, the bent axle of compressor and rotor are due to various downwards by gravity, downward electromagnet pull etc.
The effect of power, eventually act on the lower thrust surface of bent axle.But, lower thrust surface is eccentric design, and impetus is not
In center of gravity, radius of turn is relatively big, and is sliding friction, and lubricant effect is the most undesirable, thus causes the friction consumed
Merit is more, and compressor performance declines, and the impact of raising further on compressor performance is bigger.
Summary of the invention
It is contemplated that one of technical problem solved the most to a certain extent in correlation technique.To this end, the present invention needs
Proposing a kind of compressor, this compressor reliability is high, performance is good.
Compressor according to embodiments of the present invention, including: housing；Compression mechanism, described compression mechanism is located at described housing
In, described compression mechanism includes that base bearing, cylinder, supplementary bearing and bent axle, described base bearing are located at the top of described cylinder,
Described supplementary bearing is located at the bottom of described cylinder, and described bent axle is located in described base bearing, described cylinder and described pair successively
In bearing, inside described bent axle, there is centre bore；Support bar, the periphery wall of described support bar is provided with spiral groove,
The stretching at least partially and be fixed in described centre bore of described support bar；Supporting seat, described support seat is located at described pair
The lower end of bearing, described support seat is configured to be available for the lubricating oil of described housing bottom and enters into described support bar with described
In the gap of centre bore；And thrust piece, described thrust piece is located at the lower end of described support bar, the bottom of described thrust piece
Only support with described support seat, and described thrust piece and described support seat contact the centre of gyration line being centrally located at described bent axle
On.
Compressor according to embodiments of the present invention, by arranging the support bar with spiral groove in the lower end of bent axle, from
And the spiral structure that oils can be used to ensure the lubrication of compressor, and can ensure that the flow area of lubricating oil, thus may be used
To improve the performance of compressor.And by arranging the support seat and thrust piece mutually only supported, such that it is able to largely
Reduce compressor and enter power, it is ensured that the axle head central supported of compressor, and then the reliability of compressor, Er Qiejie can be improved
Structure is simple.
It addition, also can have a following additional technical feature according to the compressor of the present invention:
Described thrust piece is thrust ball or thrust elliptical shape ball, and the lower end of described support bar is formed with thrust groove, described thrust
Being partially received in described thrust groove of part.
Described thrust groove is projected as taper or circular arc in vertical plane.
Described thrust piece is to be formed at the thrust body bottom described support bar, and the bottom of described thrust body has plane or downward
The arc surface protruded.
Being provided with thrust plate between described thrust piece and described support seat, the hardness of described thrust plate is hard more than described support seat
Degree.
Described support bar is threaded with described centre bore, interference connects, bonding or be welded to connect.
It is formed with multiple described spiral groove on described support bar, and the quantity of described spiral groove is 2～4.
A diameter of D1 of described centre bore, the inscribed circle of the outline of the middle part entity structure floor projection of described support bar is straight
Footpath is D2, and meets following relational expression: 1mm≤D2≤1/2*D1.
A diameter of D1 of described centre bore, the horizontal full-size of described thrust piece is d, and meets following relational expression:
1mm≤d ＜ D1.
The lower end of described support bar exceedes downwards the lower end of described bent axle, and the lower end of described support bar with under described bent axle
Distance between end is more than or equal to 2mm.
The additional aspect of the present invention and advantage will part be given in the following description, and part will become from the following description
Substantially, or by the practice of the present invention recognize.
Accompanying drawing explanation
Above-mentioned and/or the additional aspect of the present invention and advantage will become bright from combining the accompanying drawings below description to embodiment
Aobvious and easy to understand, wherein:
Fig. 1 is the partial structurtes sectional view of compressor according to embodiments of the present invention；
Fig. 2 is the partial structurtes sectional view of the compression mechanism of compressor according to embodiments of the present invention；
The structural representation of one embodiment of the support bar of the compression mechanism of Fig. 3 compressor according to embodiments of the present invention；
The structural representation of another embodiment of the support bar of the compression mechanism of Fig. 4 compressor according to embodiments of the present invention
Figure；
The structural representation of the further embodiment of the support bar of the compression mechanism of Fig. 5 compressor according to embodiments of the present invention
Figure；
The top view of the support bar of the compression mechanism of Fig. 6 compressor according to embodiments of the present invention.
Reference:
Compressor 100；
Housing 1；
Compression mechanism 2；Base bearing 21；Cylinder 22；Supplementary bearing 23；Bent axle 24；Centre bore 241；Eccentric part 242；
Support bar 3；Spiral groove 31；Thrust groove 32；
Support seat 4；Inner chamber 41；Through hole 42；
Thrust piece 5；Thrust ball 51；Thrust body 52；
Motor 6；Stator 61；Rotor 62；
Piston 7；Slide plate 8；Thrust plate 9.
Detailed description of the invention
Embodiments of the invention are described below in detail, and the example of described embodiment is shown in the drawings, the most from start to finish phase
Same or similar label represents same or similar element or has the element of same or like function.Below with reference to attached
The embodiment that figure describes is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it is to be understood that term " " center ", " longitudinally ", " laterally ", " length ", " width ",
" thickness ", " on ", D score, "front", "rear", "left", "right", " vertically ", " level ", " top ", " end ", " interior ", " outward ",
Orientation or the position relationship of the instruction such as " clockwise ", " counterclockwise " are based on orientation shown in the drawings or position relationship, are only
Must have specifically for the ease of describing the present invention and simplification description rather than instruction or the device of hint indication or element
Orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.Additionally, term " first ",
" second " is only used for describing purpose, and it is not intended that instruction or hint relative importance or implicit indicate indicated skill
The quantity of art feature.Thus, define " first ", the feature of " second " can express or implicitly include one or
More this feature.In describing the invention, " multiple " are meant that two or more, unless otherwise clearly having
The restriction of body.
In describing the invention, it should be noted that unless otherwise clearly defined and limited, term " is installed ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be fixing connection, it is also possible to be to removably connect, or integratedly
Connect；Can be to be mechanically connected, it is also possible to be electrical connection；Can be to be joined directly together, it is also possible to indirect by intermediary
It is connected, can be connection or the interaction relationship of two elements of two element internals.Ordinary skill for this area
For personnel, above-mentioned term concrete meaning in the present invention can be understood as the case may be.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or D score
Can include that the first and second features directly contact, it is also possible to include that the first and second features are not directly contact but pass through
Other characterisation contact between them.And, fisrt feature second feature " on ", " top " and " above "
Including fisrt feature directly over second feature and oblique upper, or it is special higher than second to be merely representative of fisrt feature level height
Levy.Fisrt feature second feature " under ", " lower section " and " below " include fisrt feature second feature just under
Side and obliquely downward, or it is merely representative of fisrt feature level height less than second feature.
Below with reference to Fig. 1-Fig. 6, compressor 100 according to embodiments of the present invention is described.Wherein, compressor 100 can be
Rotary compressor.In the application explained below, illustrate as a example by compressor 100 is as rotary compressor.
Certainly, those skilled in the art are appreciated that compressor 100 can also be other type of compressor 100, and
It is not limited to rotary compressor.
As shown in figs 1 to 6, compressor 100 according to embodiments of the present invention, including: housing 1, compression mechanism 2,
Strut 3, support seat 4 and thrust piece 5.
Housing 1 can vertically be arranged, and now the central axis of housing 1 vertically extends.Housing 1 is preferred
For rotary structure, to facilitate processing and manufacturing.Compressor 100 such as rotary compressor also includes motor 6, motor 6
Mechanism 2 is each provided in housing 1 with compression, and motor 6 is positioned at the top of compression mechanism 2, motor 6 and compression mechanism 2 phase
Even to drive compression mechanism 2 to be compressed entering its interior coolant.
Specifically, motor 6 includes stator 61 and rotor 62, such as, shown in Fig. 1, rotor 62 coaxially sets rotationally
In stator 61, now motor 6 is inner rotor motor.Certainly, motor 6 can also be that external rotor electric machine is (not shown
Go out).
Compression mechanism 2 includes base bearing 21, cylinder 22, supplementary bearing 23 and bent axle 24, and base bearing 21 is located at cylinder 22
Top, supplementary bearing 23 is located at the bottom of cylinder 22, and bent axle 24 is located in base bearing 21, cylinder 22 and countershaft successively
In holding 23, bent axle 24 is internal has centre bore 241.
Alternatively, compressor 100 according to embodiments of the present invention can be single cylinder compressor 100 can also be multi-cylinder compression
Machine 100.
When compressor 100 is single cylinder compressor 100, as it is shown in figure 1, cylinder 22 includes one, now compress mechanism
2 include base bearing 21, said one cylinder 22, supplementary bearing 23 and bent axle 24, and wherein, base bearing 21 is located at this gas
The top of cylinder 22, supplementary bearing 23 is located at the bottom of this cylinder 22, has compression chamber, be provided with in compression chamber in cylinder 22
Piston 7, cylinder 22 is formed slide plate 8 groove radially extended and connect with compression chamber, and slide plate 8 is movably arranged at cunning
In sheet 8 groove, and the periphery wall of the inner of slide plate 8 and piston 7 only supports, and the outer end of slide plate 8 is connected with spring.Bent axle 24
Upper end be connected with rotor 62, the lower end of bent axle 24 sequentially passes through downwards base bearing 21, cylinder 22 and supplementary bearing 23,
Bent axle 24 has eccentric part 242, and eccentric part 242 is positioned at compression chamber, and piston 7 is set in outside eccentric part 242.Motor
During 6 work, rotor 62 band dynamic crankshaft 24 rotates around revolution centrage, thus drives the eccentric part being set in bent axle 24
Piston 7 on 242 rolls along the inwall of compression chamber.It should be noted that " interior " can be understood as towards cylinder axis
Direction, its rightabout is defined as " outward ", i.e. away from the direction of cylinder axis.
When compressor 100 is multicylinder compressor 100 such as duplex cylinder compressor 100, cylinder 22 includes in the vertical direction
Two arranged, are respectively provided with compression chamber (not shown) in each cylinder 22.Certainly, it is triplex when compressor 100
Or during more than triplex compressor 100, cylinder 22 includes three or the cylinder of more than three arranged in the vertical direction
22.Other being appreciated that multicylinder compressor 100 such as duplex cylinder compressor 100 grade constitutes such as base bearing 21, countershaft
Hold 23 grades roughly the same with single cylinder compressor 100, do not repeat them here.
The periphery wall of support bar 3 is provided with spiral groove 31, the stretching at least partially and be fixed on center of support bar 3
In hole 241.Specifically, spiral groove 31 extends in the whole length of support bar 3 from top to bottom, support bar 3
It is relatively fixed with bent axle 24 position, can rotate together with identical angular velocity with support bar 3 when bent axle 24 rotates.
By being provided with the support bar 3 of spiral groove 31, thus when support bar 3 rotates under the drive of bent axle 24,
Lubricating oil bottom housing 1 can be brought in the centre bore 241 of bent axle 24 by strut 3 by the principle that spiral oils,
And then each kinematic pair can be lubricated.
Needing exist for explaining, support bar 3 can completely or partially extend in centre bore 241, thus can make to prop up
The mounting structure of strut 3 is more diversified, more adapts to the needs of practical situation.
In example as depicted in figs. 1 and 2, the lower end of support bar 3 exceedes downwards the lower end of bent axle 24, say, that
In a part for support bar 3 extend into centre bore 241 and another part is positioned at the outside of centre bore 241.Alternatively, prop up
Distance H between lower end and the lower end of bent axle 24 of strut 3 is more than or equal to 2mm, thus, a part of support bar 3
It is positioned at centre bore 241 outside, the effect that spiral oils can be promoted.
It is understood that the lower end of the lower end of support bar 3 or bent axle 24 is preferably lower than the liquid level of lubricating oil, thus
Lubricating oil can conveniently enter in the gap between support bar 3 and centre bore 241, and then spiral can be utilized to oil
Principle make lubricating oil enter in centre bore 241.
Alternatively, the connected mode between support bar 3 and bent axle 24 can be arbitrary, such as support bar 3 and centre bore
241 can be threaded connection, interference connects, the bonding or mode such as be welded to connect is attached, its objective is to support
Bar 3 is relatively-stationary with bent axle 24 to be connected, to avoid support bar 3 to rotate relative to the centre bore 241 of bent axle 24.
Preferably, in order to improve the effect that oils of support bar 3, support bar 3 is formed with multiple spiral groove 31, spiral shell
The quantity of rotation connected in star 31 can be 2～4, say, that the quantity of the spiral groove 31 outside support bar 3 can
To be two, three or four, such quantitative design both can ensure that the effect that oils, it is ensured that the circulation of lubricating oil
Area, and can ensure that the structural strength of support bar 3.Such as shown in Fig. 6, this example illustrate and set on support bar 3
Put the embodiment of three spiral grooves 31.Certainly the present invention is not limited to this, the quantity of spiral groove 31 or one
Individual, or can also be more than four.
In the optional example of the present invention, as shown in Figure 2 and Figure 6, a diameter of D1 of the centre bore 241 of bent axle 24,
The inscribed circle diameter of the outline of the middle part entity structure floor projection of support bar 3 is D2.Wherein, " support bar 3
Middle part entity structure " refer to when being formed with spiral groove 31 on the periphery wall of support bar 3, support bar 3 axial
Do not form the part of spiral groove 31 in the middle part of cross section, the shape that an inscribe is circular in its outline, can be formed, should
A diameter of D2 that inscribe is circular, its diameter D1 with the centre bore 241 of bent axle 24 meet following relational expression: 1mm≤
D2≤1/2*D1, the most as early as possible with the flow area ensureing lubricating oil, it is also ensured that the structural strength of support bar 3.
It should be noted that compressor 100, the spiral groove 31 outside support bar 3 according to an embodiment of the invention
Rotation direction can determine according to the rotation direction of the bent axle 24 of compressor 100: when compressor 100 is to turn clockwise knot
Structure is i.e. when bent axle 24 is for rotating clockwise structure, and the rotation direction of spiral groove 31 is dextrorotation；When compressor 100 is inverse
Hour hands rotation structure is i.e. when bent axle 24 is for rotating counterclockwise structure, and the rotation direction of spiral groove 31 is left-handed.
Supporting seat 4 and be located at the lower end of supplementary bearing 23, thrust piece 5 is located at the lower end of support bar 3, the bottom of thrust piece 5 with
Support seat 4 only to support, and thrust piece 5 contacts on the centre of gyration line being centrally located at bent axle 24 with support seat 4.Thus,
When the bent axle 24 of compressor 100 and rotor 62 are by when acting on of various downward power such as gravity, downward electromagnet pulls,
The contact position that can eventually act on thrust piece 5 with joint efforts and support seat 4, due to thrust piece 5 and contacting of supporting seat 4
Being centrally located on the centre of gyration line of bent axle 24, now impetus is at the centre of gyration of bent axle 24, thus radius of turn
Less, linear velocity is low, can reduce compressor 100 largely and enter power, simultaneously it is also ensured that compressor 100
Reliability.
Wherein, support seat 4 to be configured to the lubricating oil being available for bottom housing 1 and enter into support bar 3 and centre bore 241
In gap, such as supporting seat 4 can be frame structure, thus lubricating oil can through support seat 4 flow to support bar 3 with
Near centre bore 241.Certainly, the present invention is not limited to this, and in example as depicted in figs. 1 and 2, supporting seat 4 can
To be cover body structure, and the through hole 42 being available in lubricating oil inflow support inner chamber 41 within seat 4 is set in a bearing,
Thus lubricating oil is entered into by this through hole 42 in the inner chamber 41 supporting seat 4, and then flow to support bar 3 and centre bore again
Near 241.Further, when bent axle 24 drives support bar 3 to rotate together, lubricating oil is by the way of spiral oils
Enter into centre bore 241 internal.
Compressor 100 according to embodiments of the present invention, by arranging the support with spiral groove in the lower end of bent axle 24
Bar 3, such that it is able to employing spiral oils, structure ensures the lubrication of compressor 100, and can ensure that the through-flow of lubricating oil
Area, thus can improve the performance of compressor 100.And by arranging the support seat 4 and thrust piece 5 mutually only supported,
Such that it is able to reduce compressor 100 largely to enter power, it is ensured that the axle head central supported of compressor 100 and then permissible
The reliability of raising compressor 100, and simple in construction.
In some embodiments of the invention, thrust piece 5 contacts for point cantact or face with supporting seat 4.Such as, such as Fig. 2
Shown in, thrust piece 5 is point cantact with support seat 4, and thrust piece 5 and the contact area supported between seat 4 are little, thus only
Push piece 5 and the friction supported between seat 4 are little, and the performance of compressor 100 is promoted.
In a concrete example of the present invention, seeing figures.1.and.2, thrust piece 5 can be thrust ball 51 or thrust
Elliptical shape ball.Thus, owing to being point cantact between thrust ball 51 or thrust elliptical shape ball and support seat 4, so can have
Effect ground reduces thrust piece 5 and the friction supported between seat 4, thus reduces compressor 100 and enter power, improves compressor 100
Performance.It addition, the processing of thrust ball 51 or thrust elliptical shape ball is simple, and low cost.
Further, the lower end of support bar 3 could be formed with thrust groove 32, thrust piece 5 be partially received in thrust groove 32
In.Such as, as shown in Figure 3 and Figure 4, thrust groove 32 can be upwardly recessed by a part for the lower surface of support bar 3
Being formed, thrust ball 51 or thrust elliptical shape ball be placed in this thrust groove 32, and by with support only supporting of seat 4, can
Approximately fixed to ensure the position of thrust ball 51 or thrust elliptical shape ball.Now, when bent axle 24 rotates, thrust ball
51 or thrust elliptical shape ball can rotate or mobile in thrust groove 32 under the effect of external force, thus can make thrust ball
51 or thrust elliptical shape ball can adjust, according to having stressing conditions, the position that rubbed.Thrust piece 5 is played limit by thrust groove 32
The effect of position, it is ensured that thrust piece 5 is always positioned on the centre of gyration line of bent axle 24 with the center that contacts supporting seat 4.
Further, since thrust piece 5 is partially received in thrust groove 32, thus reduce thrust piece 5 accounting in the vertical direction
Use space.
Certainly the present invention is not limited to this, and thrust ball 51 or thrust elliptical shape ball can also be fixed in thrust groove 32, only
Pushing away ball 51 or thrust elliptical shape ball cannot rotate in thrust groove 32 or moves, now thrust ball 51 or thrust are ellipse
Ball is the position by frictional force of thrust ball 51 or thrust elliptical shape ball with the contact position supporting seat 4.Specifically,
Thrust ball 51 or thrust elliptical shape ball can be fixed in thrust groove 32 by arbitrary mode, the most bonding, welding side
Formula etc..
Alternatively, the shape of thrust groove 32 can be arbitrary, such as, in the example shown in 3, thrust groove 32 is vertically
Being projected as taper in face, in example as shown in Figure 4, thrust groove 32 is projected as circular arc in vertical plane.When
So the concrete shape of thrust groove 32 specifically can be determined by actual production process.
In another concrete example of the present invention, as it is shown in figure 5, thrust piece 5 can be formed in bottom support bar 3
Thrust body 52, say, that thrust body 52 is a part of structure of support bar 3, and the bottom of thrust body 52 has flat
Face or downwardly projecting arc surface.When the bottom of thrust body 52 is plane, permissible between thrust body 52 and support seat 4
Constitute surface contact structure；When the bottom of thrust body 52 is arc surface, may be constructed between thrust body 52 and support seat 4
Point cantact structure.In the structure shown in Fig. 5, the outline of thrust body 52 is a part for spherical, thus when it
When being only against on the upper surface of support seat 4, and can support and between seat 4, constitute point cantact structure, such that it is able to only reduce
The contact area pushing away body 52 and support seat 4, reduces friction.
As shown in Figure 2 and Figure 5, in some currently preferred embodiments of the present invention, a diameter of D1 of centre bore 241, thrust
The horizontal full-size of part 5 is d.The horizontal maximum size of thrust piece 5 refer to thrust piece 5 install put in place after, its
Can the full-size of backstop centre bore 241 in horizontal direction.Specifically, as in figure 2 it is shown, working as thrust piece 5 is thrust circle
When ball 51 or thrust elliptical shape ball, the horizontal maximum size d of thrust piece 5 refers to thrust ball 51 or the diameter of thrust elliptical shape ball；
As it is shown in figure 5, when the thrust body 52 that thrust piece 5 is bottom support bar 3, the horizontal maximum size d of thrust piece 5
Refer to thrust body 52 full-size in the horizontal direction, when thrust body 52 is spherical, the size of thrust body 52
Diameter.
Further, the horizontal full-size of thrust piece 5 is that d is satisfied such as ShiShimonoseki with a diameter of D1 of centre bore 241
It is formula: 1mm≤d ＜ D1, say, that the horizontal maximum size of thrust piece 5 is less than the diameter D1 of centre bore 241,
Thus can ensure that thrust piece 5 will not produce blocking to the centre bore 241 of bent axle 24, thus can ensure that lubricating oil energy
The most effectively, smoothly enter in centre bore 241.
In embodiment as depicted in figs. 1 and 2, alternatively, between thrust piece 5 and support seat 4, it is provided with thrust plate 9,
The hardness of thrust plate 9 is more than the hardness supporting seat 4.It is to say, in order to improve between support seat 4 and thrust piece 5
Wearability, can arrange the bigger thrust plate of hardness 9 between thrust piece 5 and support seat 4.In the example of the present invention,
Thrust plate 9 is located on support seat 4, and alternatively, thrust plate 9 and the connected mode supported between seat 4 can be arbitrary,
Such as can be to be the modes such as welding, bonding, securing member connection.
Other of compressor 100 according to embodiments of the present invention constitute such as base bearing 21, cylinder 22, supplementary bearing 23 etc.
Concrete structure etc. and operation be the most all known, I will not elaborate.
In the description of this specification, reference term " embodiment ", " some embodiments ", " illustrative examples ", " show
Example ", the description of " concrete example " or " some examples " etc. means to combine this embodiment or example describes specific features, knot
Structure, material or feature are contained at least one embodiment or the example of the present invention.In this manual, to above-mentioned art
The schematic representation of language is not necessarily referring to identical embodiment or example.And, the specific features of description, structure, material
Material or feature can combine in any one or more embodiments or example in an appropriate manner.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: do not taking off
In the case of the principles and objective of the present invention, these embodiments can be carried out multiple change, revise, replace and modification,
The scope of the present invention is limited by claim and equivalent thereof.
Claims (10)
1. a compressor, it is characterised in that including:
Housing；
Compression mechanism, described compression mechanism is located in described housing, and described compression mechanism includes base bearing, cylinder, countershaft
Holding and bent axle, described base bearing is located at the top of described cylinder, and described supplementary bearing is located at the bottom of described cylinder, described song
Axle is located in described base bearing, described cylinder and described supplementary bearing successively, has centre bore inside described bent axle；
Support bar, the periphery wall of described support bar is provided with spiral groove, described support bar stretch at least partially and
It is fixed in described centre bore；
Supporting seat, described support seat is located at the lower end of described supplementary bearing, and described support seat is configured to be available at the bottom of described housing
The lubricating oil in portion enters in the gap of described support bar and described centre bore；And
Thrust piece, described thrust piece is located at the lower end of described support bar, and the bottom of described thrust piece is only supported with described support seat,
And the contacting on the centre of gyration line being centrally located at described bent axle of described thrust piece and described support seat.
Compressor the most according to claim 1, it is characterised in that described thrust piece is thrust ball or thrust ellipse
Ball, the lower end of described support bar is formed with thrust groove, being partially received in described thrust groove of described thrust piece.
Compressor the most according to claim 2, it is characterised in that described thrust groove being projected as in vertical plane is bored
Shape or circular arc.
Compressor the most according to claim 1, it is characterised in that described thrust piece is for being formed at the bottom of described support bar
The thrust body in portion, the bottom of described thrust body has plane or downwardly projecting arc surface.
Compressor the most according to claim 1, it is characterised in that be provided with between described thrust piece and described support seat
Thrust plate, the hardness of described thrust plate is more than the hardness of described support seat.
Compressor the most according to claim 1, it is characterised in that described support bar threadeds with described centre bore,
Interference connects, bonding or be welded to connect.
Compressor the most according to claim 1, it is characterised in that be formed with multiple described spiral on described support bar
Connected in star, and the quantity of described spiral groove is 2～4.
Compressor the most according to claim 1, it is characterised in that a diameter of D1 of described centre bore, described
The inscribed circle diameter of the outline of the middle part entity structure floor projection of strut is D2, and meets following relational expression: 1mm
≤D2≤1/2*D1。
Compressor the most according to claim 1, it is characterised in that a diameter of D1 of described centre bore, described only
The horizontal full-size of push piece is d, and meets following relational expression: 1mm≤d ＜ D1.
Compressor the most according to claim 1, it is characterised in that the lower end of described support bar exceedes downwards described
Distance between the lower end of bent axle, and the lower end of the lower end of described support bar and described bent axle is more than or equal to 2mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510059820.2A CN104763616B (en) | 2015-02-04 | 2015-02-04 | Compressor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510059820.2A CN104763616B (en) | 2015-02-04 | 2015-02-04 | Compressor |
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|---|---|
| CN104763616A CN104763616A (en) | 2015-07-08 |
| CN104763616B true CN104763616B (en) | 2017-01-11 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107503943B (en) * | 2017-09-18 | 2024-06-18 | 珠海格力节能环保制冷技术研究中心有限公司 | Oil pump structure of compressor and compressor with same |
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| CN204436740U (en) * | 2015-02-04 | 2015-07-01 | 广东美芝制冷设备有限公司 | Compressor |
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|---|---|---|---|---|
| JPH0861277A (en) * | 1994-08-22 | 1996-03-08 | Toshiba Corp | Mechanism for feeding oil in crankshaft of compressor |
| CN101657639A (en) * | 2006-10-31 | 2010-02-24 | 惠而浦股份有限公司 | The oil pump that is used for refrigeration compressor |
| CN102062100A (en) * | 2010-12-31 | 2011-05-18 | 珠海格力电器股份有限公司 | Rotary compressor with spiral oil guide sheet |
| CN204436740U (en) * | 2015-02-04 | 2015-07-01 | 广东美芝制冷设备有限公司 | Compressor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104763616A (en) | 2015-07-08 |
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