CN105736380B - Crankshaft for compressor and the compressor with it - Google Patents
Crankshaft for compressor and the compressor with it Download PDFInfo
- Publication number
- CN105736380B CN105736380B CN201610230307.XA CN201610230307A CN105736380B CN 105736380 B CN105736380 B CN 105736380B CN 201610230307 A CN201610230307 A CN 201610230307A CN 105736380 B CN105736380 B CN 105736380B
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- Prior art keywords
- tube body
- compressor
- crankshaft
- rotor
- stopping part
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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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
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C3/00—Shafts; Axles; Cranks; Eccentrics
- F16C3/04—Crankshafts, eccentric-shafts; Cranks, eccentrics
- F16C3/06—Crankshafts
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The invention discloses a kind of crankshaft for compressor and the compressor with it, compressor includes rotor and piston, and crankshaft includes the first tube body and the second tube body.First tube body is suitable for being located in the rotor hole of rotor to be rotated with being driven by rotor, the internal diameter of second tube body be greater than the first tube body outer diameter and the second tube body length less than the first tube body length, the upper end of second tube body is formed with the upper push stopping part to raise upward, second tube body housing is on the first tube body and the center axis deviation of the central axis of the second tube body and the first tube body, piston are suitable for housing on the periphery wall of the second tube body.Crankshaft according to the present invention for compressor, crankshaft weight can be greatly reduced, reduce cost, the eccentric mass of compressor can be reduced, improve the reliability of compressor, the useless power consumption that crankshaft high-speed operating generates can be reduced simultaneously, improve the performance of compressor, and can simplify the processing technology of crankshaft.
Description
Technical field
The present invention relates to Compressor Technology fields, more particularly, to a kind of crankshaft for compressor and the compression with it
Machine.
Background technique
In the related technology, the crankshaft structure of rotary compressor is integral type casting, due to rotary type compressor pump body provided therewith six
Crankshaft in component generally uses solid casting, and weight is big, and price is high, and difficulty of processing is larger.On the one hand, crankshaft is solid inclined
The quality of heart circle constitutes the major part of eccentric mass, thus will increase the rotary compressor eccentric mass with axis decentraction
The centrifugal intertia force of generation, to reduce the reliability of compressor；On the other hand, the function of crankshaft is to transmit the power of rotor
To the pump housing, crankshaft needs enough rigidity, and casting needs to increase intensity by increasing wall thickness, prevents deflection deformation from leading to bearing
Abrasion increase, and crankshaft itself carries out revolution and generates useless power consumption, and power consumption is related to the weight of crankshaft, to compressor performance side
Face is unfavorable.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.For this purpose, the present invention mentions
A kind of crankshaft for compressor out, the crankshaft weight is small, at low cost, can reduce the eccentric mass of compressor, reduces crankshaft
The useless power consumption generated when running at high speed improves the performance of compressor.
The invention also provides a kind of compressors with above-mentioned crankshaft.
The crankshaft for compressor of embodiment according to a first aspect of the present invention, the compressor include rotor and piston,
The crankshaft includes: the first tube body, and first tube body is suitable for being located in the rotor hole of the rotor to be driven by the rotor
Rotation；Second tube body, the internal diameter of second tube body is greater than the outer diameter of first tube body and the length of second tube body is small
In the length of first tube body, the upper end of second tube body is formed with the upper push stopping part to raise upward, and described second
Tube body housing on first tube body and the center axis deviation of the central axis of second tube body and first tube body,
The piston is suitable for housing on the periphery wall of second tube body.
Crankshaft according to an embodiment of the present invention for compressor, sets by using the connection of the first tube body and the second tube body
Meter, can greatly reduce crankshaft weight, reduce cost, can reduce the eccentric mass of compressor, improve the reliability of compressor,
The useless power consumption that crankshaft high-speed operating generates can be reduced simultaneously, improve the performance of compressor.In addition, by the second tube body
Upper end is formed with the upper push stopping part to raise upward, can simplify the processing technology of crankshaft.
According to some embodiments of the present invention, the upper surface of second tube body is horizontal plane and the upper push stopping part and institute
It states and is equipped with intermediate incline between the upper surface of the second tube body.
According to some embodiments of the present invention, the upper surface of second tube body be from the upper surface of the upper push stopping part to
Under inclined inclined-plane.
According to some embodiments of the present invention, the lower end of second tube body is formed with downwardly convex lower thrust
Portion, the lower push stopping part are identical as the structure of the upper push stopping part.
According to some embodiments of the present invention, fluted, first tube body is formed on the internal perisporium of second tube body
A part accommodate in the groove.
According to some embodiments of the present invention, first tube body includes first segment and the one end for being located at the first segment
Second segment, the outer diameter of the second segment are less than the outer diameter of the first segment, and the second tube body housing is in the outer of the second segment
On peripheral wall.
Further, the upper push stopping part and the bottom of the first segment offset.
Optionally, it is connected between first tube body and second tube body by soldering connection or Laser Welding.
The crankshaft for compressor of embodiment according to a second aspect of the present invention, the compressor include rotor and multiple work
Plug, the crankshaft includes: the first tube body, and first tube body is suitable for being located in the rotor hole of the rotor to be driven by the rotor
Turn is dynamic；Multiple second tube bodies, the internal diameter of second tube body are greater than the outer diameter of first tube body and second tube body
Length be less than first tube body length, multiple second tube bodies along first tube body axially spaced-apart housing described
On first tube body, the upper push stopping part to raise upward is formed with positioned at the upper end of second tube body of the top, described
Two tube body housings are on first tube body and the central axis of second tube body and the central axis of first tube body are inclined
From multiple pistons are suitable for housing one by one on the periphery wall of multiple second tube bodies.
Crankshaft according to an embodiment of the present invention for compressor, by using the company of the first tube body and multiple second tube bodies
Design is connect, crankshaft weight can be greatly reduced, reduce cost, the eccentric mass of compressor can be reduced, that improves compressor can
By property, while the useless power consumption that crankshaft high-speed operating generates can be reduced, improve the performance of compressor.In addition, by second
The upper end of tube body is formed with the upper push stopping part to raise upward, can simplify the processing technology of crankshaft.
Further, the lower end positioned at second tube body of bottom is formed with downwardly convex lower push stopping part.
The compressor of embodiment according to a third aspect of the present invention, comprising: above-mentioned first aspect or second party according to the present invention
The crankshaft for compressor of face embodiment；Piston and rotor, the rotor housing is on first tube body described in driving
The rotation of first tube body, the piston jacket is on second tube body.
Compressor according to an embodiment of the present invention, by the way that above-mentioned crankshaft is arranged, can reduce compressor weight and at
This, while the eccentric mass of compressor can be reduced, the reliability of compressor is improved, production when can also reduce crankshaft high-speed operating
Raw useless power consumption improves the performance of compressor.
Detailed description of the invention
Fig. 1 is the schematic diagram of compressor according to an embodiment of the present invention；
Fig. 2 is the schematic diagram of crankshaft according to an embodiment of the invention；
Fig. 3 is the enlarged diagram in Fig. 2 at A；
Fig. 4 is the schematic diagram of the first tube body of crankshaft in Fig. 2；
Fig. 5 is the schematic diagram of the second tube body of crankshaft in Fig. 2；
Fig. 6 is the schematic diagram of crankshaft in accordance with another embodiment of the present invention；
Fig. 7 is the enlarged diagram in Fig. 6 at B；
Fig. 8 is the schematic diagram of the first tube body of crankshaft in Fig. 6；
Fig. 9 is the schematic diagram of the second tube body of crankshaft in Fig. 6.
Appended drawing reference:
Compressor 100,
Crankshaft 1, the first tube body 11, first segment 111, second segment 112, the second tube body 12, upper surface 121, intermediate incline
122a, intermediate incline 122b, lower end surface 123, groove 124, upper push stopping part 13, lower push stopping part 14, oilhole 15,
Motor 2, rotor 21, stator 22, shell 3, base bearing 4, supplementary bearing 5, piston 6, cylinder 7, slide plate 8.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings.Below with reference to
The embodiment of attached drawing description is exemplary, it is intended to is used to explain 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 ", " length ", " thickness ", "upper", "lower", a left side ",
The orientation or positional relationship of the instructions such as " right side ", top ", "bottom" "inner", "outside", " axial direction ", " radial direction ", " circumferential direction " is based on attached drawing institute
The orientation or positional relationship shown, is merely for convenience of description of the present invention and simplification of the description, rather than the dress of indication or suggestion meaning
It sets or element must have a particular orientation, be constructed and operated in a specific orientation, therefore should not be understood as to limit of the invention
System.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected or can communicate each other；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly.For this field
For those of ordinary skill, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
The crankshaft 1 according to an embodiment of the present invention for compressor 100 is described below with reference to Fig. 2-Fig. 9.
As shown in Fig. 2-Fig. 9, the crankshaft 1 for compressor 100 of embodiment according to a first aspect of the present invention, wherein compressing
Machine 100 includes compression mechanism, motor 2 and shell 3, and compression mechanism and motor 2 are respectively provided in shell 3, and motor 2 includes rotor 21
With stator 22, stator 22 is fixed on the inner wall of shell 3, and rotor 21 is rotatably arranged in stator 22, and compression mechanism includes master
The elements such as bearing 4, supplementary bearing 5, piston 6, cylinder 7, slide plate 8.It is understood that crankshaft 1 can be used for compressor 100 for example
Rotary compressor.
Crankshaft 1 includes the first tube body 11 and the second tube body 12.Wherein, the internal diameter of the second tube body 12 is greater than the first tube body 11
Less than the length of the first tube body 11, the upper end of the second tube body 12 is formed with to raise upward the length of outer diameter and the second tube body 12
Upper push stopping part 13, it is possible thereby to simplify crankshaft 1 processing technology, without in addition processing the component for playing upper thrust function.The
Two tube bodies, 12 housing is living on the first tube body 11 and the center axis deviation of the central axis of the second tube body 12 and the first tube body 11
Plug 6 is suitable for housing on the periphery wall of the second tube body 12, and thus the second tube body 12 constitutes the eccentric part of crankshaft 1.First tube body
11 are suitable for being located in the rotor hole of rotor 21 and are rotated with being driven by rotor 21, in the rotation of the first tube body 11 second tube body 12 also with
Rotation.
It is designed as a result, by using the connection of the first tube body 11 and the second tube body 12,1 weight of crankshaft can be greatly reduced,
Cost is reduced, the eccentric mass of compressor 100 can be reduced, improves the reliability of compressor 100, while crankshaft 1 can be reduced
Run at high speed the useless power consumption of generation, improves the performance of compressor 100.
It is wherein determined, is led to by the radial dimension of the first tube body 11 and the second tube body 12 due to the eccentricity of crankshaft 1
The crankshaft 1 of the first tube body 11 using different calibers, the available different eccentricity of the second tube body 12 is crossed, so as to meet
The changeable demand of eccentricity.For example, the wall thickness of the wall thickness of the first tube body 11 and the second tube body 12 is uniform, crankshaft 1 at this time
The value of eccentricity be equal to the internal diameter of the second tube body 12 and subtract the outer diameter of the first tube body 11, therefore it is certain in the eccentricity of crankshaft 1
In the case where, i.e., the internal diameter of the first tube body 11 and outer diameter it is certain in the case where, can be under the premise of guaranteeing 1 intensity of crankshaft
By reducing the wall thickness of the first tube body 11, to further reduce the weight of crankshaft 1, reduce cost.
Optionally, the first tube body 11 and the second tube body 12 can be steel pipe, and can be by the strip of corresponding caliber
Steel pipe cut so that the processing is simple for 1 each section of crankshaft, and convenient for buying and storage, reduce production cost.
It is alternatively possible to carry out corresponding Wear-resistant Treatment to the first tube body 11 and the second tube body 12, for example, nitridation, carburizing,
Molybdenum phosphatization etc. routinely reduces the surface treatment of abrasion.
It is understood that the fixed form between the first tube body 11 and the second tube body 12 can be multiplicity.For example, can be with
It is welded on a part of internal perisporium of the second tube body 12 on the periphery wall of first tube body 11.
Crankshaft 1 according to an embodiment of the present invention for compressor 100, by using the first tube body 11 and the second tube body 12
Connection design, 1 weight of crankshaft can be greatly reduced, reduce cost, can reduce the eccentric mass of compressor 100, improve pressure
The reliability of contracting machine 100, while crankshaft 1 can be reduced and run at high speed the useless power consumption of generation, improve the performance of compressor 100.
In addition, can simplify the processing of crankshaft 1 by being formed with the upper push stopping part 13 to raise upward in the upper end of the second tube body 12
Technique.
The crankshaft 1 according to an embodiment of the invention for compressor 100 is described in detail referring to Fig. 2-Fig. 5.
Embodiment one,
Referring to Fig. 2-Fig. 5, in the present embodiment, referring to Fig. 2 and Fig. 4, crankshaft 1 includes the first tube body 11 and the second tube body
12, the upper end of the second tube body 12 is formed with the upper push stopping part 13 to raise upward.Wherein, the first tube body 11 includes first segment
111 and be located at first segment 111 one end (referring to the lower end of first segment 111 in Fig. 2 and Fig. 4) second segment 112, second segment 112
Outer diameter be less than first segment 111 outer diameter, 12 housing of the second tube body is on the periphery wall of second segment 112.Thus, it is possible to further
Ground reduces the weight of crankshaft 1, material saving, reduces cost.It needs to illustrate herein, the second segment 112 of the first tube body 11
Lower part be to cooperate with the supplementary bearing 5 of compressor 100, the setting of the outer diameter of second segment 112 it is smaller, crankshaft can also be reduced
1 with the contact area of supplementary bearing 5, so as to reduce abrasion.
Certainly, it is consistent to be also possible to outer diameter for the first tube body 11.
Further, referring to Fig. 2 and Fig. 3, upper push stopping part 13 and the bottom of first segment 111 offset.Thus it is convenient for second
Tube body 12 and the first tube body 11 are attached fixation, and increase the contact area of the second tube body 12 and the first tube body 11, thus
The structural strength and stability of crankshaft 1 can be improved.
Referring to Fig. 2 and Fig. 5, fluted 124 are formed on the internal perisporium of the second tube body 12, a part of the first tube body 11 accommodates
In groove 124.For example, it may be a part of the second segment 112 of the first tube body 11 is contained in groove 124.Thus, it is possible to
Increase the contact area of the first tube body 11 and the second tube body 12, so as to improve the structural strength of crankshaft 1.For example, the first pipe
When body 11 and the second tube body 12 are welded to connect, the bonding area of the first tube body 11 and the second tube body 12 can be increased, so as to
Improve weld strength.Optionally, the adhered shape of the shape of the periphery wall of the first tube body 11 and groove 124, it is possible thereby into one
Improve the structural stability of crankshaft 1 in step ground.
In addition, passing through the radial depth for changing 12 upper groove 124 of the second tube body, thus it is possible to vary the eccentricity of crankshaft 1, thus
In the case where the caliber of the second tube body 12 and the first tube body 11 is selected, the groove 124 of the different radial depths of processing can be passed through
To form the crankshaft 1 of different eccentricity, so as to further meet the needs of eccentricity is changeable.
Optionally, between the first tube body 11 and the second tube body 12 can by soldering connection (such as copper brazing connects in furnace) or
Laser Welding connection.Welding deformation can reduce by above-mentioned welding manner as a result, improve the welding quality of crankshaft 1.
In addition, oilhole 15 can also be respectively equipped on the first tube body 11 and the second tube body 12 referring to Fig. 2-Fig. 5.It can manage
Solution, when the second tube body 12 is fixed on the first tube body 11, corresponding position on the first tube body 11 and the second tube body 12
Oilhole 15 can also be used as fabrication hole use simultaneously.Specifically, being weldingly fixed on the first tube body 11 by the second tube body 12
When, the fasteners such as pin can be first passed through and sequentially pass through oilhole 15 on the second tube body 12 and the first tube body 11, so as to will
The positioning of second tube body 12, is then welded again, so that the welding positioning of the second tube body 12 and the first tube body 11 is more square
Just.After the second tube body 12 and the welding of the first tube body 11 are completed, above-mentioned pin can be removed.
Referring to Fig. 2 and Fig. 5, the upper surface 121 of the second tube body 12 is horizontal plane and upper push stopping part 13 and the second tube body 12
Intermediate incline 122a is equipped between upper surface 121, intermediate incline 122a downwards and is tilted to the right from the edge of upper push stopping part 13
Extend to the upper surface 121 of the second tube body 12.Thus, it is possible to be further reduced the weight of the second tube body 12, it can reduce bent
The weight of the eccentric part of axis 1 improves compressor 100 so as to reduce the centrifugal intertia force of 100 eccentric mass of compressor generation
Reliability, and material saving, reduce cost.It needs to illustrate herein, " the upper surface of the second tube body 12 described in this paragraph
121 " refer to that the top of the second tube body 12 removes the part of upper push stopping part 13 and intermediate incline 122a.
Optionally, the upper push stopping part 13 for being formed in the upper end of the second tube body 12 can be push stopping part 13 by managing with second
Body 12 is integrally cast, and is also possible to be formed by the second tube body of machining 12.
Further, referring to Fig. 2, the lower end of the second tube body 12 is formed with downwardly convex lower push stopping part 14, as a result,
By the upper push stopping part 13 and lower push stopping part 14 being integrally formed on the second tube body 12, the axial movement of crankshaft 1 can be limited.It is optional
Ground, lower push stopping part 14 can be identical with the structure of upper push stopping part 13, it is possible thereby to keep the structure of crankshaft 1 well-balanced.
For example, similarly, the lower end surface 123 of the second tube body 12 is under horizontal plane and lower push stopping part 14 and the second tube body 12
Intermediate incline 122b also is provided between end face 123, intermediate incline 122b upwards and is tilted to the right from the edge of lower push stopping part 14
Extend to the lower end surface 123 of the second tube body 12.Thus, it is possible to be further reduced the weight of the second tube body 12, it can reduce bent
The weight of the eccentric part of axis 1, improves the reliability of compressor 100, and material saving, reduces cost.It needs to illustrate herein
It is that " lower end surface 123 of the second tube body 12 " described in this paragraph refers to that the bottom of the second tube body 12 removes lower push stopping part 14 and transition
The part of inclined-plane 122b.
Optionally, the lower push stopping part 14 for being formed in the lower end of the second tube body 12 can be lower push stopping part 14 by managing with second
Body 12 is integrally cast, and is also possible to be formed by the second tube body of machining 12.
Certainly, the lower thrust function of crankshaft 1 can also be realized by the shaft end of crankshaft 1.For example, in the pair of compressor 100
Setting has the thrust plate of thrust function on bearing 5, and the lower end surface of crankshaft 1 can only be supported with above-mentioned thrust plate, thus can also be with
It realizes lower thrust function, limits the axial movement of crankshaft 1.
The crankshaft 1 in accordance with another embodiment of the present invention for compressor 100 is described in detail referring to Fig. 6-Fig. 9.
Embodiment two,
Referring to Fig. 6-Fig. 9, crankshaft 1 in the present embodiment the difference is that only with above-described embodiment one: the second tube body
12 structure.The other structures of crankshaft 1 in the present embodiment are roughly the same with above-described embodiment one, are not discussed here.
In addition, it is necessary to illustrate, identical appended drawing reference is used with identical component in embodiment one in the present embodiment.
In the present embodiment, referring to Fig. 6 and Fig. 9, the upper surface 121 of the second tube body 12 is the upper surface by upper push stopping part 13
The inclined-plane tilted down, the inclined-plane downwards and are tilted to the right from the edge of upper push stopping part 13 and extend to the outside of the second tube body 12
Edge.Thus, it is possible to be further reduced the weight of the second tube body 12, it can the weight of the eccentric part of crankshaft 1 is reduced, so as to
Reduce by 100 eccentric mass of compressor generate centrifugal intertia force, improve compressor 100 reliability, and material saving, reduction at
This.It needs to illustrate herein, " upper surface 121 of the second tube body 12 " described in this paragraph refers to that the top of the second tube body 12 is removed
Go to the part of push stopping part 13.
Optionally, the upper push stopping part 13 for being formed in the upper end of the second tube body 12 can be push stopping part 13 by managing with second
Body 12 is integrally cast, and is also possible to be formed by the second tube body of machining 12.
Further, referring to Fig. 2, the lower end of the second tube body 12 is formed with downwardly convex lower push stopping part 14, as a result,
By the upper push stopping part 13 and lower push stopping part 14 being integrally formed on the second tube body 12, the axial movement of crankshaft 1 can be limited.It is optional
Ground, lower push stopping part 14 can be identical with the structure of upper push stopping part 13, it is possible thereby to keep the structure of crankshaft 1 well-balanced.
For example, similarly, the lower end surface 123 of the second tube body 12 can be acclivitous by the lower surface of lower push stopping part 14
Inclined-plane, the inclined-plane upwards and are tilted to the right from the edge of lower push stopping part 14 and extend to the outer edge of the second tube body 12.Thus, it is possible to
It is further reduced the weight of the second tube body 12, it can reduce the weight of the eccentric part of crankshaft 1, improve the reliable of compressor 100
Property, and material saving, reduce cost.It needs to illustrate herein, " lower end surface 123 of the second tube body 12 " described in this paragraph is
Refer to that the bottom of the second tube body 12 removes the part of lower push stopping part 14.
Optionally, the lower push stopping part 14 for being formed in the lower end of the second tube body 12 can be lower push stopping part 14 by managing with second
Body 12 is integrally cast, and is also possible to be formed by the second tube body of machining 12.
Certainly, the lower thrust function of crankshaft 1 can also be realized by the shaft end of crankshaft 1.For example, in the pair of compressor 100
Setting has the thrust plate of thrust function on bearing 5, and the lower end surface of crankshaft 1 can only be supported with above-mentioned thrust plate, thus can also be with
It realizes lower thrust function, limits the axial movement of crankshaft 1.
It needs to illustrate herein, crankshaft 1 can be used for single cylinder compressor, can be used for multicylinder compressor, above-mentioned
The content of description is illustrated so that crankshaft 1 is for single cylinder compressor as an example, and crankshaft 1 is described below for multicylinder compressor
Example.Below originally asking in description, same parts are all made of appended drawing reference same as described above.
The crankshaft 1 for compressor 100 of embodiment according to a second aspect of the present invention, wherein compressor 100 includes rotor
21 and multiple pistons 6, crankshaft 1 includes the first tube body 11 and multiple second tube bodies 12.
Specifically, the internal diameter of the second tube body 12 is greater than the length of the outer diameter of the first tube body 11 and the second tube body 12 less than the
The length of one tube body 11, multiple second tube bodies 12 along the first tube body 11 axially spaced-apart housing on the first tube body 11, be located at most
The upper end of second tube body 12 of top is formed with the upper push stopping part 13 to raise upward, and 12 housing of the second tube body is in the first tube body
On 11 and the center axis deviation of the central axis of the second tube body 12 and the first tube body 11, multiple pistons 6 are suitable for housing one by one and exist
On the periphery wall of multiple second tube bodies 12.Multiple second tube bodies 12 constitute multiple eccentric parts of crankshaft 1 as a result,.First tube body
11 are suitable for being located to drive rotation by rotor 21 in the rotor hole of rotor 21, multiple second tube bodies 12 in the rotation of the first tube body 11
Also it rotates with it.
It is designed as a result, by using the connection of the first tube body 11 and multiple second tube bodies 12,1 weight of crankshaft can be greatly reduced
Amount, reduces cost, can reduce the eccentric mass of compressor 100, improves the reliability of compressor 100, while can reduce song
Axis 1 runs at high speed the useless power consumption of generation, improves the performance of compressor 100.In addition, by the upper end of the second tube body 12 one
It is formed with the upper push stopping part 13 to raise upward, can simplify the processing technology of crankshaft 1.
Wherein, the above-mentioned first aspect embodiment of the present invention is referred to for beneficial effect brought by above-mentioned technical characteristic
The content of description, which is not described herein again.
Certainly, other supplementary technologies of the crankshaft 1 for compressor 100 of first aspect embodiment above-mentioned for the present invention
Feature and corresponding beneficial effect are equally applicable to the crankshaft 1 for compressor 100 of second aspect of the present invention embodiment, here
It repeats no more.
Crankshaft 1 according to an embodiment of the present invention for compressor 100, by using the first tube body 11 and multiple second pipes
The connection of body 12 designs, and can greatly reduce 1 weight of crankshaft, reduce cost, can reduce the eccentric mass of compressor 100, mention
The reliability of high compressor 100, while crankshaft 1 can be reduced and run at high speed the useless power consumption of generation, improve the property of compressor 100
Energy.In addition, can simplify crankshaft 1 by being formed with the upper push stopping part 13 to raise upward in the upper end of the second tube body 12
Processing technology.
In further embodiment of the present invention, it is formed with positioned at the lower end of the second tube body 12 of bottom downwardly convex
Lower push stopping part 14.As a result, by the integrally formed upper push stopping part 13 in the upper end for the second tube body 12 for being located at the top and being located at
The integrally formed lower push stopping part 14 in the lower end of second tube body 12 of bottom, can limit the axial movement of crankshaft 1.Optionally,
Lower push stopping part 14 can be identical with the structure of upper push stopping part 13, it is possible thereby to keep the structure of crankshaft 1 well-balanced.
Certainly, the lower thrust function of crankshaft 1 can also be realized by the shaft end of crankshaft 1.For example, in the pair of compressor 100
Setting has the thrust plate of thrust function on bearing 5, and the lower end surface of crankshaft 1 can only be supported with above-mentioned thrust plate, thus can also be with
It realizes lower thrust function, limits the axial movement of crankshaft 1.
Compressor 100 according to an embodiment of the present invention is described referring to Fig. 1.
As shown in Figure 1, the compressor 100 of embodiment, including crankshaft 1, piston 6 and rotor according to a third aspect of the present invention
21。
Specifically, crankshaft 1 is to be used for compressor 100 according to the above-mentioned first aspect of the present invention or second aspect embodiment
Crankshaft 1,21 housing of rotor on the first tube body 11 with drive the first tube body 11 rotation, 6 housing of piston is on the second tube body 12.
When compressor 100 is single cylinder compressor, compressor 100 includes a cylinder 7 and piston 6, and crankshaft 1 is above-mentioned according to the present invention
The crankshaft 1 of first aspect embodiment；When compressor 100 is multicylinder compressor, compressor 100 includes multiple cylinders 7 and multiple
Piston 6, crankshaft 1 are the crankshaft 1 according to the above-mentioned second aspect embodiment of the present invention.
Compressor 100 according to an embodiment of the present invention can reduce the weight of compressor 100 by the way that above-mentioned crankshaft 1 is arranged
Amount and cost, while the eccentric mass of compressor 100 can be reduced, the reliability of compressor 100 is improved, crankshaft can also be reduced
1 useless power consumption generated when running at high speed improves the performance of compressor 100.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (10)
1. a kind of crankshaft for compressor, the compressor include rotor and piston, which is characterized in that the crankshaft includes:
First tube body, first tube body is suitable for being located in the rotor hole of the rotor to be rotated with being driven by the rotor；
The length of second tube body, outer diameter and second tube body that the internal diameter of second tube body is greater than first tube body is less than
The length of first tube body, the upper end of second tube body are formed with the upper push stopping part to raise upward, second pipe
It covers on first tube body and the center axis deviation of the central axis of second tube body and first tube body in vitro, institute
State piston suitable for housing on the periphery wall of second tube body, formed on the internal perisporium of second tube body it is fluted, it is described
A part of first tube body accommodates in the groove, in the internal perisporium of second tube body and the first tube body periphery wall
Between limit hollow cavity.
2. the crankshaft according to claim 1 for compressor, which is characterized in that the upper surface of second tube body is water
Intermediate incline is equipped between plane and the upper push stopping part and the upper surface of second tube body.
3. the crankshaft according to claim 1 for compressor, which is characterized in that serve as reasons the upper surface of second tube body
The inclined-plane that the upper surface of the upper push stopping part tilts down.
4. the crankshaft according to any one of claim 1-3 for compressor, which is characterized in that second tube body
Lower end is formed with downwardly convex lower push stopping part, and the lower push stopping part is identical as the structure of the upper push stopping part.
5. the crankshaft according to claim 1 for compressor, which is characterized in that first tube body include first segment and
It is located at the second segment of one end of the first segment, the outer diameter of the second segment is less than the outer diameter of the first segment, second pipe
It covers on the periphery wall of the second segment in vitro.
6. the crankshaft according to claim 5 for compressor, which is characterized in that the upper push stopping part and the first segment
Bottom offset.
7. the crankshaft according to claim 1 for compressor, which is characterized in that first tube body and second pipe
It is connected between body by soldering connection or Laser Welding.
8. a kind of crankshaft for compressor, the compressor includes rotor and multiple pistons, which is characterized in that the crankshaft packet
It includes:
First tube body, first tube body is suitable for being located in the rotor hole of the rotor to be rotated with being driven by the rotor；
Multiple second tube bodies, the internal diameter of second tube body are greater than the outer diameter of first tube body and the length of second tube body
Less than the length of first tube body, multiple second tube bodies along first tube body axially spaced-apart housing described first
On tube body, the upper push stopping part to raise upward, second pipe are formed with positioned at the upper end of second tube body of the top
It covers on first tube body and the center axis deviation of the central axis of second tube body and first tube body in vitro, it is more
A piston is suitable for housing one by one and is formed on the internal perisporium of second tube body on the periphery wall of multiple second tube bodies
Fluted, a part of first tube body accommodates in the groove, in the internal perisporium of second tube body and described the
Hollow cavity is limited between one tube body periphery wall.
9. the crankshaft according to claim 8 for compressor, which is characterized in that positioned at second tube body of bottom
Lower end be formed with downwardly convex lower push stopping part.
10. a kind of compressor characterized by comprising
Crankshaft according to claim 1 to 9 for compressor；
Piston and rotor, the rotor housing drive first tube body to rotate on first tube body, outside the piston
It covers on second tube body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610230307.XA CN105736380B (en) | 2016-04-13 | 2016-04-13 | Crankshaft for compressor and the compressor with it |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610230307.XA CN105736380B (en) | 2016-04-13 | 2016-04-13 | Crankshaft for compressor and the compressor with it |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105736380A CN105736380A (en) | 2016-07-06 |
| CN105736380B true CN105736380B (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610230307.XA Active CN105736380B (en) | 2016-04-13 | 2016-04-13 | Crankshaft for compressor and the compressor with it |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205638940U (en) * | 2016-04-13 | 2016-10-12 | 广东美芝制冷设备有限公司 | A compressor that is used for bent axle of compressor and has it |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62251489A (en) * | 1986-04-24 | 1987-11-02 | Toshiba Corp | Shaft of rotary compressor |
| CN203770368U (en) * | 2013-12-30 | 2014-08-13 | 上海日立电器有限公司 | Combined type rolling rotor type compressor crankshaft |
| CN105464984A (en) * | 2014-09-12 | 2016-04-06 | 上海日立电器有限公司 | Crankshaft of rolling type rotor compressor and manufacturing method of crankshaft |
| CN204755563U (en) * | 2015-04-01 | 2015-11-11 | 上海日立电器有限公司 | Rolling rotor compressor bent axle |
| CN105257508B (en) * | 2015-11-02 | 2018-05-18 | 安徽美芝精密制造有限公司 | For the bent axle of compressor and with its compressor |
-
2016
- 2016-04-13 CN CN201610230307.XA patent/CN105736380B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205638940U (en) * | 2016-04-13 | 2016-10-12 | 广东美芝制冷设备有限公司 | A compressor that is used for bent axle of compressor and has it |
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| CN105736380A (en) | 2016-07-06 |
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