CN105041652B - Rotary compressor - Google Patents
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- CN105041652B CN105041652B CN201510412530.1A CN201510412530A CN105041652B CN 105041652 B CN105041652 B CN 105041652B CN 201510412530 A CN201510412530 A CN 201510412530A CN 105041652 B CN105041652 B CN 105041652B
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Abstract
The invention discloses a kind of rotary compressor, including：Shell, compression assembly, electric machine assembly, the first rack and support component.The periphery wall of first rack is fixed on the inner wall of shell, and base bearing, supplementary bearing or cylinder or the other parts such as partition plate of compression assembly are fixedly connected in the first rack.Support component includes the second rack and auxiliary bearing, and the periphery wall of the second rack is fixed on the inner wall of shell, and auxiliary bearing is fixed on the upper surface of the second rack and the top of bent axle is sleeved on outside auxiliary bearing.Rotary compressor according to the present invention, by the first rack and the second rack with by the sub-assembly transition of compression assembly and rotor connection on the shell, improve assembly precision, air gap is uniform between ensureing electric machine rotor, wear that small, noise is small between each bearing and bent axle, and moment of torsion is low in energy consumption when rotating bent axle, machine air gap amount of unbalance is small, realizes the small―gap suture assembling of electric machine rotor.And compressor arrangement advantages of simple, good reliability.
Description
Technical field
The present invention relates to compressor field, more particularly, to a kind of rotary compressor.
Background technology
With the raising that the development of Compressor Technology, high efficiency require, rotary compressor motor height progressively increases, electricity
Machine rotating speed is higher and higher, and bent axle diameter is less and less, and draw ratio is increasing, and bent axle is rigid worse and worse, the energy of resistance to deformation
Power is gradually lowered.Accompanying problem is that due to the effect of machine air gap imbalance electromagnet pull, compressor is in starting
Elastic deformation occurs for moment bent axle, causes rotor to be collided with diameter of stator bore.Meanwhile the increase of motor speed makes rotor operating centrifugation
Power effect increases, and Rotor terminal is often scraped with diameter of stator bore, collided.Moreover, the swing of bent axle can increase bent axle and pressure
The abrasion of contracting inter-module, finally so that compressor noise increase, hydraulic performance decline, less reliable.
In addition, compressor industry is generally compressed by the way of directly compression assembly is weldingly fixed on housing to fix
Component, to form electric machine rotor gap.But since assembling conjunction size is more, in assembling process between each part or part and work
Dimensional interference often occurs between clamps.Again because the influence of welding stress, the electric machine rotor gap after the completion of welding is often
Change, cause machine air gap amount of unbalance to deteriorate, compressor performance reduces.
To solve the above problems, major compressor manufacturer and correlative study institutes have all carried out substantial amounts of work, wherein, it is right
The sub-assembly of compression assembly and rotor is seen in patent and document report successively using the method that dual-gripper is fixed.Dual-gripper scheme
Specifically, in addition to being directly welded at the first support formed on housing except original compression assembly end, also close to the another of motor
It is spacing to be carried out to bent axle that the second support is set up at end.But these schemes there are problems that, therefore the compression of dual-support structure
Machine fails to be applied in mass production always, and particular problem is as follows：
First, small―gap suture, the electricity of low amount of unbalance that the first support can not be ensured required by high efficiency using being welded and fixed
Machine rotor clearance requirement；
Second, the depth of parallelism between two supports can not ensure, even if the second support has carried out auxiliary bearing and bent axle
Aligning, but influenced after tightening by benchmark, auxiliary bearing position can change, it is difficult to ensure auxiliary bearing and bent axle gap
Uniformity.
The content of the invention
The application aims to solve the problem that technical problem existing in the prior art.It is for this reason, the present invention is intended to provide a kind of rotary
Compressor, the rotary compressor assembly precision higher, machine air gap amount of unbalance are small.
Rotary compressor according to embodiments of the present invention, including：Shell；Compression assembly, the compression assembly are located at institute
State in shell, the compression assembly includes bent axle, base bearing, supplementary bearing and cylinder；Electric machine assembly, the electric machine assembly are located at institute
State in shell and positioned at the top of the compression assembly, the electric machine assembly includes fixed stator on the housing and can turn
The rotor being located at dynamicly in the stator, the rotor are sleeved on the bent axle outside；First rack, the periphery of first rack
Wall is fixed on the inner wall of the shell, its in the base bearing, the supplementary bearing or the cylinder or the compression assembly
His part is fixedly connected in first rack；Support component, the support component include the second rack and auxiliary of annular
Bearing, the periphery wall of second rack are fixed on the inner wall of the shell, and the auxiliary bearing is fixed on second machine
The top of the bent axle is sleeved on to support the bent axle on the upper surface of frame and outside the auxiliary bearing.
Rotary compressor according to embodiments of the present invention, by setting the first rack and the second rack, will compress group
The sub-assembly transition connection of part and rotor on the shell, improves the assembly precision of rotary compressor, ensures the stator of motor
Air gap is uniform between rotor so that abrasion between each bearing and bent axle is small, noise is small, and moment of torsion work(when rotating bent axle
Consume that low, machine air gap amount of unbalance is small, realize the small―gap suture assembling of electric machine rotor.And rotary compressor conjunction simple in structure
Reason, good reliability.
Specifically, the lower surface of first rack is parallel with the upper surface of second rack.Thus, it is ensured that installation
Bent axle is arranged concentrically with auxiliary bearing afterwards.
Further, the lower surface of first rack and the central axis of the stator are perpendicular, second rack
Upper surface and the central axis of the stator it is perpendicular.In this way, also can with stator with regard to rotor after better ensuring that installation
Coaxial cooperation, ensures gap uniformity between rotor and stator.
In certain embodiments, first rack, the axial height of second rack are 3-20mm.Thus, first
The lap of splice of rack, the second rack respectively with middle casing is also suitable for, and is not interfered with compressor inner structure layout, is ensured at the same time
It is connected with the good contact of middle casing.
Specifically, the fit clearance between the auxiliary bearing and the bent axle be more than the base bearing and the bent axle it
Between fit clearance, fit clearance between the auxiliary bearing and the bent axle is more than between the supplementary bearing and the bent axle
Fit clearance.When crank rotation bends, auxiliary bearing can also have certain buffering to adjust while bent axle is supported
Ability.
Advantageously, the fit clearance between the auxiliary bearing and the bent axle is less than between the stator and the rotor
Air gap.In this way, the excessive influence supporting role of the fit clearance between auxiliary bearing and bent axle can be avoided, so as to avoid bent axle from existing
The excessive gap amount of unbalance that causes between rotor and stator of flexural deformation is excessive during rotation.
Alternatively, bilateral fit clearance is 0.01-0.3mm between the auxiliary bearing and the bent axle.
Alternatively, fit clearance d1t=(0.8-1.3) the * diameter of axle/1000 between the base bearing and the bent axle.
Alternatively, fit clearance d2t=(0.8-1.3) the * diameter of axle/1000 between the supplementary bearing and the bent axle.
Preferably, fit clearance d3t=(1.0-5.0) d1t between the auxiliary bearing and the bent axle.
The additional aspect and advantage of the present invention will be set forth in part in the description, and will partly become from the following description
Obtain substantially, or recognized by the practice of the present invention.
Brief description of the drawings
The above-mentioned and/or additional aspect and advantage of the present invention will become in the description from combination accompanying drawings below to embodiment
Substantially and it is readily appreciated that, wherein：
Fig. 1 is the structure diagram of rotary compressor according to embodiments of the present invention；
Fig. 2 is middle casing according to embodiments of the present invention and stator, the first rack, the structure diagram of the second rack；
Fig. 3 is the structure diagram of compression assembly according to embodiments of the present invention and rotor；
Fig. 4 is the structure diagram of auxiliary bearing according to embodiments of the present invention.
Reference numeral：
100：Rotary compressor；
1：Exhaust manifolds；2：Upper shell；3：Middle casing；4：Stator；5：Rotor；6：Bent axle；7：Base bearing；8：Cylinder；9：
Supplementary bearing；10：Lower housing shell；13：Balance weight；14：Reservoir；
A：Shell；B：Electric machine assembly；C：Compression assembly；V：Accommodating chamber；
11：Lower support structure；111：First rack；
12：Upper support structure；120：Support component；121：Second rack；122：Auxiliary bearing；
S1：The lower surface of first rack；S2：The upper surface of second rack；S3：The aperture surface of auxiliary bearing；S4：Asessory shaft
The counterface held；S5：Diameter of stator bore face；
M：First sub-assembly；N：Second sub-assembly.
Embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or has the function of same or like element.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to for explaining the present invention, and is not considered as limiting the invention.
In the description of the present invention, it is to be understood that term " " center ", " longitudinal direction ", " transverse direction ", " length ", " width ",
" thickness ", " on ", " under ", "front", "rear", "left", "right", " vertical ", " level ", " top ", " bottom ", " interior ", " outer ", " up time
The orientation or position relationship of the instruction such as pin ", " counterclockwise ", " axial direction ", " radial direction ", " circumferential direction " be based on orientation shown in the drawings or
Position relationship, is for only for ease of and describes the present invention and simplify description, rather than indicates or imply that signified device or element must
There must be specific orientation, with specific azimuth configuration and operation, therefore be not considered as limiting the invention.
In addition, term " first ", " second " are only used for description purpose, and it is not intended that instruction or hint relative importance
Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can be expressed or
Implicitly include one or more this feature.In the description of the present invention, unless otherwise indicated, " multiple " are meant that two
A or two or more.
In the description of the present invention, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ",
" fixation " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integrally；Can be machinery
Connection or electrical connection；It can be directly connected, can also be indirectly connected by intermediary, can be two elements
Internal connection or the interaction relationship of two elements.For the ordinary skill in the art, can be with concrete condition
Understand the concrete meaning of above-mentioned term in the present invention.
In the present invention, unless otherwise clearly defined and limited, fisrt feature second feature it " on " or it " under "
Can directly it be contacted including the first and second features, it is not directly to contact but pass through it that can also include the first and second features
Between other characterisation contact.Moreover, fisrt feature second feature " on ", " top " and " above " to include first special
Sign is directly over second feature and oblique upper, or is merely representative of fisrt feature level height and is higher than second feature.Fisrt feature exists
Second feature " under ", " lower section " and " following " fisrt feature that includes are immediately below second feature and obliquely downward, or be merely representative of
Fisrt feature level height is less than second feature.
Rotary compressor 100 according to embodiments of the present invention is described below with reference to Fig. 1-Fig. 4.
Rotary compressor 100 according to embodiments of the present invention, as shown in Figure 1, rotary compressor 100 includes：Shell
A, electric machine assembly B and compression assembly C.Shell A is sealing container, and accommodating chamber V is limited in shell A.Electric machine assembly B and compression group
Part C is each provided in shell A, i.e. electric machine assembly B and compression assembly C are each provided in accommodating chamber V.In the example illustrated in figure 1, shell A
Including middle casing 3, upper shell 2 and lower housing shell 10, middle casing 3 is formed as the tubular that upper and lower ends are opened wide, upper shell 2 and lower housing shell
10 are respectively provided at the upper and lower ends of middle casing 3.Rotary compressor 100 further includes exhaust manifolds 1, and exhaust manifolds 1 are located at shell A
Upper and connection accommodating chamber V, in the example of fig. 1, exhaust manifolds 1 are connected on upper shell 2.
As shown in Figure 1, electric machine assembly B is located at the top of compression assembly C, electric machine assembly B includes stator 4 and matches somebody with somebody with stator 4
Close the rotor 5 rotated.Stator 4 is fixed on shell A, and rotor 5 is rotatably arranged in stator 4.
As shown in Figure 1, compression assembly C includes bent axle 6, cylinder assembly, supplementary bearing 9, base bearing 7, piston and slide plate, (figure is not
Show) etc., cylinder assembly may include one or more cylinders 8, when cylinder 8 for it is multiple when, be equipped between two neighboring cylinder 8 every
Plate.Wherein, bent axle 6 is sleeved on bent axle 6 outside cylinder assembly and rotor 5, and bent axle 6 is fixedly connected with rotor 5 with same with rotor 5
Step rotation.Base bearing 7 and supplementary bearing 9 are respectively provided at the upper and lower ends of cylinder assembly, and base bearing 7 and/or supplementary bearing 9, which are equipped with, to be connected
The exhausting-gas hole (not shown) in ventilation cylinder interior space, bent axle 6 coordinate with base bearing 7 and supplementary bearing 9 rotationally to set respectively
In shell A.It is located in cylinder 8 to piston eccentric rotary, bent axle 6 is connected with piston to drive piston eccentric rotary, and bent axle 6
Drive the refrigerant in piston rotation and compression cylinder 8.Rotary compressor 100 also provides refrigerant to be compressed by reservoir 14,
Reservoir 14 is connected with cylinder 8.Cylinder interior space is divided into high pressure chest and low pressure chamber by slide plate 11, is compressed during piston rotation
Refrigerant, makes the pressure rise in high pressure chest, when pressure rise to the external pressure for being slightly larger than compression assembly C, pressurized gas refrigerant
It can be discharged by exhausting-gas hole.
It is eccentric system due to bent axle 6 and to drive rotating piston by bent axle 6, and when rotation can cause larger vibration,
Therefore in the design, usually also need to offset mass eccentricity in the end face of rotor 5 configuration balance weight 13.
With reference to Fig. 1-Fig. 3, rotary compressor 100 further includes the first rack 111 and support component 120.First rack 111
Periphery wall be fixed on the inner wall of shell A, the other parts in base bearing 7, supplementary bearing 9 or cylinder 8 or compression assembly C
(such as partition plate) is fixedly connected in the first rack 111.Support component 120 includes the second rack 121 and auxiliary bearing of annular
122, the periphery wall of the second rack 121 is fixed on the inner wall of shell A, and auxiliary bearing 122 is fixed on the upper table of the second rack 121
The top of bent axle 6 is sleeved on to support bent axle 6 on the S2 of face, and outside auxiliary bearing 122.
That is, the lower end of compression assembly C is fixed on shell A by the first rack 111, the first rack 111 forms pressure
The lower support structure 11 of contracting component C and the sub-assembly of rotor 5.Second rack 121 and auxiliary bearing 122 are supported on the upper of bent axle 6
On end, support component 120 forms the upper support structure 12 of compression assembly C and the sub-assembly of rotor 5, i.e., support of the present invention
Component 120 is the upper support structure 12 for being used to support compression assembly C upper ends.The rotor 5 of compression assembly C and electric machine assembly B is formed
Sub-assembly be connected to by lower support structure 11 and upper support structure 12 on the shell A of compressor.
It is well known that when connecting workpiece by way of welding or riveting, even concentrated, become using welding heat
The small laser welding of shape, it is also inevitable that the relative position of two weldments, which is moved,.Therefore, if supporting knot under formation
During structure 11, by the sub-assembly being directly welded to connect of the compression assembly C shown in Fig. 3 and rotor 5 on shell A, which is welding
Connecing the front and rear relative position with the stator 4 of electric machine assembly B will change, so that machine air gap amount of unbalance deteriorates.
To solve the above problems, a kind of rotary compressor 100, the rotary compressor are proposed in the embodiment of the present invention
100 have increased the first rack 111 newly when forming lower support structure 11, using the first rack 111 as above stated assembly lower end with outer
Transition piece between shell A.In addition, the second rack 121 and auxiliary bearing 122 are provided with when forming upper support structure 12,
Using the second rack 121 as above stated assembly upper end with the transition piece between shell A.
In this way, on the one hand by frock clamp after it ensure that the gap of electric machine rotor by the lower end of sub-assembly and first
Rack 111 is fastened, and due to the positioning action of frock clamp, is fastenedly connected and is removed compression assembly C and electricity after frock clamp
The sub-assembly of the rotor 5 of thermomechanical components B will not change with the relative position of stator 4.
On the other hand, the upper end assembling auxiliary bearing 122 of the sub-assembly on the first rack 111 is fastened on, and rotate song
Auxiliary bearing 122 is fastened on the upper surface S2 of the second rack 121, this would not change position of bearings aligning by axis 6 after aligning
Become the gap uniformity of auxiliary bearing 122 and bent axle 6, it is solid that the upper support structure 12 so formed not only realizes rotor 5
The fixed transformation from cantilever beam to simply supported beam, and auxiliary bearing 122 can be matched somebody with somebody with bent axle 6 using the higher small―gap suture of precision
Close.
In this way, the flexure that can be eliminated when rotor 5 rotates is swung, while it can ensure that very low electric machine rotor gap is uneven
Amount so that when abrasion between bearing and bent axle 6 is small, noise is small, bent axle 6 rotates moment of torsion is low in energy consumption, machine air gap is uneven
Measure small.
Rotary compressor 100 according to embodiments of the present invention, by setting the first rack 111 and the second rack 121, with
The sub-assembly transition of compression assembly C and rotor 5 is connected on shell A, improves the assembly precision of rotary compressor 100,
Air gap is uniform between ensureing the stator 4 and rotor 5 of motor so that abrasion between each bearing and bent axle 6 is small, noise is small, and makes
When bent axle 6 rotates moment of torsion is low in energy consumption, machine air gap amount of unbalance is small, it can be achieved that the small―gap suture assembling of electric machine rotor.And revolve
Rotary compressor 100 is simple and reasonable, good reliability.
In certain embodiments, as shown in Figure 1-Figure 3, auxiliary bearing 122 matches after passing through the second rack 121 with bent axle 6
Close, the peripheral edge portion of the lower surface of auxiliary bearing 122 is close on the upper surface S2 of the second rack 121, the second rack 121 it is upper
Surface S2 is the positioning fitting surface of positioning auxiliary bearing 122.Since base bearing 7, supplementary bearing 9 or cylinder 8 are fixed in compression assembly C
It is connected in the first rack 111, in the example of fig. 1, the positioning that the lower surface S1 of the first rack 111 is compression assembly C is assembled
Face.
In this way, to ensure that bent axle 6 is arranged concentrically with auxiliary bearing 122 after installation, when installation to ensure the first rack 111 and
Second rack 121 is parallel, especially in the example of Fig. 1, the upper table of the lower surface S1 of the first rack 111 and the second rack 121
Face S2 is parallel.
In assembling, also to ensure the aperture surface S5 of the first rack 111 and the second rack 121 perpendicular to stator 4 at the same time, i.e.,
In the example of fig. 1, the lower surface S1 of the first rack 111 and the central axis of stator 4 are perpendicular, the upper table of the second rack 121
Face S2 and the central axis of stator 4 are perpendicular.
Here, aperture surface refers to the internal face of respective members, in the foregoing description, perpendicular with the aperture surface of component,
Refer to perpendicular with the central axis of the component.
Specifically, when mounted, the first rack 111 and the second rack 121 are using the aperture surface S5 of stator 4 as positioning
Face, advantageously ensures that the corresponding fitting surface of the first rack 111 and the second rack 121 is perpendicular with the central axis of stator 4, this
Sample, also can be coaxial with stator 4 with regard to rotor 5 after better ensuring that installation, ensures gap uniformity between rotor 5 and stator 4.
Specifically, pass through in compression assembly C with being connected to the first machine after the diameter of stator bore face S5 of electric machine assembly B centering installations
On frame 111, the central axis of the central axis and stator 4 of compression assembly C can be so set to be located along the same line, i.e. 6 energy of bent axle
It is coaxially disposed with stator 4.When bent axle 6 coordinates with auxiliary bearing 122, auxiliary bearing 122 will be reconnected first second after aligning
In rack 121, so, it is ensured that the central axis of auxiliary bearing 122 and the central axis of bent axle 6 are located along the same line.Through
It after above method assembling, can make to be coaxially disposed between rotor 5 and stator 4, ensure gap uniformity between stator 4 and rotor 5.
In a specific example, the first rack 111 can be installed at the same time or separately with the second rack 121, is parallel to each other, together
When the first rack 111 perpendicular to diameter of stator bore face S5 and be fixed on shell A, the second rack 121 is perpendicular to diameter of stator bore face S5
And be fixed on shell A, after the completion of above-mentioned positioning, then be compressed the sub-assembly of the rotor 5 of component C and electric machine assembly B
Installation and connection.
Advantageously, when the first rack 111 and shell A is positioned, match somebody with somebody between the first rack 111 and shell A for gap
Close, that is, require the part outside diameter of the first rack 111 to be slightly less than the internal diameter of middle casing 3, so, it is ensured that the first rack 111
Position is adjustable in shell A, ensures that the aperture surface S5 of the assembling positioning surface and stator 4 of the first rack 111 is perpendicular.Positioning is completed
Afterwards, the first rack 111 can be by welding, riveting, the mode such as being glued and be fixedly connected in middle casing 3.
Advantageously, when the second rack 121 and shell A is positioned, match somebody with somebody between the second rack 121 and shell A for gap
Close, that is, require the part outside diameter of the second rack 121 to be slightly less than the internal diameter of middle casing 3, so, it is ensured that the second rack 121
Position is adjustable in shell A, ensures that the aperture surface S5 of the assembling positioning surface and stator 4 of the second rack 121 is perpendicular.Positioning is completed
Afterwards, the second rack 121 can be by welding, riveting, the mode such as being glued and be fixedly connected in middle casing 3.
Alternatively, as shown in Fig. 2, before fixed after the positioning of the first rack 111, the internal face of the first rack 111 and shell A
Between unilateral clearance delta 1 be 0-0.25mm.Here, unilateral gap refer to shell A internal face and the first rack 111 it is outer
The semidiameter in week.
Alternatively, it is unilateral between the second rack 121 and the internal face of shell A before fixed after the positioning of the second rack 121
Clearance delta 2 is 0-0.25mm.
In certain embodiments, as shown in Fig. 2, the axial height Fh1 of the first rack 111 is 3-20mm, i.e. the first rack
The axial length of the contact surface of 111 and shell A is 3-20mm.In this way, the lap of splice of the first rack 111 and middle casing 3 is suitable,
Compressor inner structure layout is not interfered with, while ensures to be connected with the good contact of middle casing 3.
The axial height Fh2 of second rack 121 is 3-20mm, i.e. the axial direction of the contact surface of the second rack 121 and shell A is long
Spend for 3-20mm.In this way, the lap of splice of the second rack 121 and middle casing 3 is also suitable for, compressor inner structure cloth is not interfered with
Office, while ensure to be connected with the good contact of middle casing 3.
In certain embodiments, the fit clearance between auxiliary bearing 122 and bent axle 6 is more than between base bearing 7 and bent axle 6
Fit clearance, fit clearance between auxiliary bearing 122 and bent axle 6 is more than the fit clearance between supplementary bearing 9 and bent axle 6.
In this way, when bent axle 6 is rotated and bent, auxiliary bearing 122 can also have certain buffering to adjust energy while bent axle 6 are supported
Power, avoids the stress that auxiliary bearing 122 is born is excessive from causing serious wear etc..
Advantageously, the fit clearance between auxiliary bearing 122 and bent axle 6 is less than the air gap between stator 4 and rotor 5.This
Sample, can avoid the excessive influence supporting role of the fit clearance between auxiliary bearing 122 and bent axle 6, so as to avoid bent axle 6 from rotating
When the excessive gap amount of unbalance that causes between rotor 5 and stator 4 of flexural deformation it is excessive.
Alternatively, bilateral fit clearance is 0.01-0.3mm between auxiliary bearing 122 and bent axle 6.Here, bilateral gap refers to
Be diameter difference between the internal diameter of auxiliary bearing 122 and the outside diameter of bent axle 6.It is it is preferred that double between auxiliary bearing 122 and bent axle 6
Side fit clearance is 0.015~0.06mm.
Alternatively, fit clearance d1t=(0.8-1.3) the * diameter of axle/1000 between base bearing 7 and bent axle 6, that is to say, that
Fit clearance d1t between base bearing 7 and bent axle 6 is 0.8-1.3 times of one thousandth of the diameter of axle of bent axle 6.
Alternatively, fit clearance d2t=(0.8-1.3) the * diameter of axle/1000 between supplementary bearing 9 and bent axle 6, that is to say, that
Fit clearance d2t between supplementary bearing 9 and bent axle 6 is 0.8-1.3 times of one thousandth of the diameter of axle of bent axle 6.
Preferably, fit clearance d3t=(1.0-5.0) d1t between auxiliary bearing 122 and bent axle 6, that is to say, that auxiliary
Help fit clearance d1ts of the fit clearance d3t between bearing 122 and bent axle 6 between base bearing 7 and bent axle 6 one to five times.
In the specific example of the present invention, the fit clearance of each bearing and bent axle 6, which is set, meets following relation：Bearing
Fit clearance d1t=(0.8-1.3) the * diameter of axle/1000 between bent axle 6, and the fit clearance between supplementary bearing 9 and bent axle 6
D2t=(0.8-1.3) the * diameter of axle/1000, and fit clearance d3t=(1.0-5.0) d1t between auxiliary bearing 122 and bent axle 6.
In a specific example, the installation step of rotary compressor 100 is as follows：
First step：In the component that 4 hot jacket of stator of middle casing 3 and electric machine assembly B are formed, with the aperture surface of stator 4
On the basis of S5, the first rack 111 and the second rack 121 are welded, at this time, the positioning assembling of the first rack 111 and the second rack 121
Face is parallel to each other, i.e. the lower surface S1 of the first rack 111 and the upper surface S2 of the second rack 121 are parallel to each other, and the first rack
111 and second rack 121 positioning fitting surface both perpendicular to stator 4 aperture surface S5, to form as shown in Figure 2 first group
Component M；
Second step：Compression assembly C and the sub-assembly of rotor 5 are known as the second sub-assembly N, as shown in Figure 3.Combined to first
After part M and the second sub-assembly N positioning, make the lower end of the second sub-assembly N and the lower surface of the first rack 111 of the first sub-assembly M
S1 is contacted, urgent lower end screw；The upper end of second sub-assembly N coordinates with the aperture surface S3 of auxiliary bearing 122, and rotation bent axle 6 is adjusted
Behind whole 122 center of auxiliary bearing, make the upper table of the second rack 121 of the counterface S4 and the first sub-assembly M of auxiliary bearing 122
Face S2 is contacted, then urgent upper end screw, completes the assembling of electric machine assembly B, compression assembly C and shell A.
Certainly, a specific embodiment of the only embodiment of the present invention described above, the assembling side of the embodiment of the present invention
Case not limited to this.For example, in this embodiment, the stator 4 of first step middle casing 3 and electric machine assembly B can pass through hot jacket elder generation shape
Into component, the stator 4 of middle casing 3 and electric machine assembly B also can make middle casing 3, motor directly in a manner of loose mail by frock clamp
4 and first rack 111 of stator, the second rack 121 of component B is fixed respectively again after forming opposite correct position.
In some instances, when rotary compressor 100 assembles, the first rack 111 and the second rack 121 can be consolidated at the same time
It is scheduled on shell A to form lower support structure 11 and upper support structure 12, the first rack 111 and the second rack 121 can also be distinguished
It is fixed on shell A to form lower support structure 11 and upper support structure 12.
Equally, in the second step, can be with as it was previously stated, the rotor 5 of compression assembly C and electric machine assembly B be formed second
Installed after sub-assembly N, first can be also connected compression assembly C with the lower surface S1 of the first rack 111 of the first sub-assembly M,
The rotor 5 of electric machine assembly B is installed again after fastening, then auxiliary bearing 122, and aligning and connection fastening are installed again.
In addition, the connection mode of the first supporting structure 11, the second supporting structure 12 and the shell A of compressor can be weldering
The mode such as connect, rivet, being glued.
The sub-assembly and the first support, the connection mode of the second support that the rotor 5 of compression assembly C and electric machine assembly B is formed
Can be the modes such as threaded connection, riveting, splicing, welding.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means to combine the embodiment or example particular features, structures, materials, or characteristics described
It is contained at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms differs
Surely identical embodiment or example are referred to.Moreover, particular features, structures, materials, or characteristics described can be any
Combined in an appropriate manner in one or more embodiments or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that：Not
In the case of departing from the principle of the present invention and objective a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent.
Claims (5)
- A kind of 1. rotary compressor, it is characterised in that including：Shell；Compression assembly, the compression assembly are located in the shell, the compression assembly include bent axle, base bearing, supplementary bearing and Cylinder；Electric machine assembly, the electric machine assembly are located in the shell and positioned at the top of the compression assembly, the electric machine assembly Including the rotor fixed stator on the housing and be rotatably arranged in the stator, the song is sleeved on outside the rotor On axis；First rack, the periphery wall of first rack are fixed on the inner wall of the shell, the base bearing, the supplementary bearing Or the other parts in the cylinder or the compression assembly are fixedly connected in first rack；Support component, the support component includes the second rack of annular and auxiliary bearing, the periphery wall of second rack are consolidated It is scheduled on the inner wall of the shell, the auxiliary bearing is fixed on the upper surface of second rack and outside the auxiliary bearing The top of the bent axle is sleeved on to support the bent axle；Wherein,The lower surface of first rack is parallel with the upper surface of second rack, the lower surface of first rack with it is described The central axis of stator is perpendicular, and the upper surface of second rack and the central axis of the stator are perpendicular；Wherein,Fit clearance d1t=(0.8-1.3) the * diameter of axle/1000 between the base bearing and the bent axle,Fit clearance d2t=(0.8-1.3) the * diameter of axle/1000 between the supplementary bearing and the bent axle,Fit clearance d3t=(1.0-5.0) d1t between the auxiliary bearing and the bent axle；Wherein,The installation step of the rotary compressor is as follows：First step：In the component that the stator of middle casing and the electric machine assembly is formed, with the aperture surface of the stator On the basis of, first rack and second rack are connected, makes the lower surface of first rack and second rack Upper surface is parallel to each other, and the lower surface of first rack and the upper surface of second rack are both perpendicular to the stator Aperture surface, to form the first sub-assembly；Second step：The sub-assembly of the compression assembly and the rotor is known as the second sub-assembly, to first sub-assembly with After the second sub-assembly positioning, the lower end of second sub-assembly is set to be contacted with the lower surface of first rack, by lower end It is fixedly connected；The upper end of second sub-assembly coordinates with the aperture surface of the auxiliary bearing, rotates described in the bent axle adjustment Behind the center of auxiliary bearing, make the counterface of the auxiliary bearing and the upper surface of second rack, then will be upper End is fixedly connected, and completes the assembling of the electric machine assembly, the compression assembly and the shell.
- 2. rotary compressor according to claim 1, it is characterised in that first rack, second rack Axial height is 3-20mm.
- 3. rotary compressor according to claim 1, it is characterised in that between the auxiliary bearing and the bent axle Fit clearance is more than the fit clearance between the base bearing and the bent axle, matching somebody with somebody between the auxiliary bearing and the bent axle Close the fit clearance that gap is more than between the supplementary bearing and the bent axle.
- 4. rotary compressor according to claim 1, it is characterised in that between the auxiliary bearing and the bent axle Fit clearance is less than the air gap between the stator and the rotor.
- 5. rotary compressor according to claim 1, it is characterised in that double between the auxiliary bearing and the bent axle Side fit clearance is 0.01-0.3mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510412530.1A CN105041652B (en) | 2015-07-13 | 2015-07-13 | Rotary compressor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510412530.1A CN105041652B (en) | 2015-07-13 | 2015-07-13 | Rotary compressor |
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| CN105041652A CN105041652A (en) | 2015-11-11 |
| CN105041652B true CN105041652B (en) | 2018-05-08 |
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| CN201510412530.1A Active CN105041652B (en) | 2015-07-13 | 2015-07-13 | Rotary compressor |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105201844A (en) * | 2015-10-22 | 2015-12-30 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN106996374B (en) * | 2017-05-31 | 2020-08-14 | 广东美芝制冷设备有限公司 | Support piece for compressor and compressor with same |
| CN109209886A (en) * | 2017-07-07 | 2019-01-15 | 上海海立电器有限公司 | A kind of rotor-type compressor |
| CN107202012B (en) * | 2017-07-28 | 2020-06-12 | 广东美芝制冷设备有限公司 | Rotary compressor |
| CN107255078A (en) * | 2017-07-31 | 2017-10-17 | 广东美芝制冷设备有限公司 | Rotary compressor |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1119705A (en) * | 1994-02-21 | 1996-04-03 | 株式会社东芝 | Rotative compressor and refrigerator, refriging apparatus and air conditioner using same |
| CN2874069Y (en) * | 2005-10-28 | 2007-02-28 | 上海日立电器有限公司 | Full closed rolling rotor type compressor of air conditioner with double bearing structures |
| CN102094828A (en) * | 2009-12-10 | 2011-06-15 | 广东美芝制冷设备有限公司 | Dual-support rotary type compressor |
| CN204783669U (en) * | 2015-07-13 | 2015-11-18 | 广东美芝制冷设备有限公司 | Rotation -type compressor |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06159276A (en) * | 1992-11-20 | 1994-06-07 | Toshiba Corp | Rotary compressor |
| CN104165142B (en) * | 2014-08-01 | 2017-02-22 | 广东美芝制冷设备有限公司 | Rotary compressor |
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2015
- 2015-07-13 CN CN201510412530.1A patent/CN105041652B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1119705A (en) * | 1994-02-21 | 1996-04-03 | 株式会社东芝 | Rotative compressor and refrigerator, refriging apparatus and air conditioner using same |
| CN2874069Y (en) * | 2005-10-28 | 2007-02-28 | 上海日立电器有限公司 | Full closed rolling rotor type compressor of air conditioner with double bearing structures |
| CN102094828A (en) * | 2009-12-10 | 2011-06-15 | 广东美芝制冷设备有限公司 | Dual-support rotary type compressor |
| CN204783669U (en) * | 2015-07-13 | 2015-11-18 | 广东美芝制冷设备有限公司 | Rotation -type compressor |
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| CN105041652A (en) | 2015-11-11 |
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