CN105736380A - Crankshaft for compressor and compressor with crankshaft - Google Patents
Crankshaft for compressor and compressor with crankshaft Download PDFInfo
- Publication number
- CN105736380A CN105736380A CN201610230307.XA CN201610230307A CN105736380A CN 105736380 A CN105736380 A CN 105736380A CN 201610230307 A CN201610230307 A CN 201610230307A CN 105736380 A CN105736380 A CN 105736380A
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- Prior art keywords
- bent axle
- compressor
- rotor
- stopping part
- push stopping
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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 crankshaft for a compressor and the compressor with the crankshaft. The compressor comprises a rotor and a piston. The crankshaft comprises a first pipe and a second pipe. The first pipe is suitable for being arranged in a rotor hole of the rotor so as to be driven by the rotor to rotate. The inner diameter of the second pipe is larger than the outer diameter of the first pipe, and the length of the second pipe is smaller than that of the first pipe. An upper thrust part protruding upwards is integrally formed at the upper end of the second pipe, the first pipe is sleeved with the second pipe, and the center axis of the second pipe deviates from the center axis of the first pipe. The piston is suitable for being arranged on the peripheral wall of the second pipe in a sleeving manner. According to the crankshaft for the compressor, the weight of the crankshaft can be greatly reduced, cost can be reduced, the eccentric mass of the compressor can be reduced, and the reliability of the compressor can be improved; and meanwhile useless power consumption generated by high-speed running of the crankshaft can be reduced, the performance of the compressor can be improved, and the machining technology of the crankshaft can be simplified.
Description
Technical field
The present invention relates to Compressor Technology field, especially relate to a kind of bent axle for compressor and there is its compressor.
Background technology
In correlation technique, the crankshaft structure of rotary compressor is integral type foundry goods, due to the bent axle in rotary type compressor pump body provided therewith six parts, is generally adopted solid casting, and weight is big, and price is high, and difficulty of processing is bigger.On the one hand, the quality of the solid off-centre operation of bent axle constitutes the major part of eccentric mass, thus can increase the centrifugal intertia force that the rotary compressor eccentric mass not concentric with axis produces, thus reducing the reliability of compressor；On the other hand, the function of bent axle is in that the power of transmission rotor is to the pump housing, bent axle needs enough rigidity, foundry goods requires over increase wall thickness to increase intensity, bearing wear increases to prevent deflection deformation from causing, and bent axle self carries out revolution and produces useless power consumption, power consumption is relevant to the weight of bent axle, and compressor performance aspect is unfavorable.
Summary of the invention
It is contemplated that one of technical problem solved at least to a certain extent in correlation technique.For this, the present invention proposes a kind of bent axle for compressor, and bent axle weight is little, cost is low for this, it is possible to reduce the eccentric mass of compressor, the useless power consumption produced when reducing crankshaft high-speed operating, improves the performance of compressor.
The invention allows for a kind of compressor with above-mentioned bent axle.
The bent axle for compressor of embodiment according to a first aspect of the present invention, described compressor includes rotor and piston, and described bent axle includes: the first body, and described first body is suitable to be located in the rotor hole of described rotor to be driven rotation by described rotor；Second body, the internal diameter of described second body is more than the length of the external diameter of described first body and the described second body length less than described first body, the upper end of described second body is formed with the upper push stopping part raised up, being enclosed within described first body outside described second body and the center axis deviation of the central axis of described second body and described first body, described piston is suitable to outer being enclosed within the periphery wall of described second body.
The bent axle for compressor according to embodiments of the present invention, by adopting the connection of the first body and the second body to design, bent axle 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 produces can be reduced simultaneously, improve the performance of compressor.It addition, by being formed with the upper push stopping part raised up in the upper end of the second body, it is possible to simplify the processing technique of bent axle.
According to some embodiments of the present invention, the upper surface of described second body be horizontal plane and described upper push stopping part and described second body upper surface between be provided with intermediate incline.
According to some embodiments of the present invention, the upper surface of described second body is the inclined-plane that the upper surface by described upper push stopping part is downward-sloping.
According to some embodiments of the present invention, the lower end of described second body is formed with downwardly convex lower push stopping part, and described lower push stopping part is identical with the structure of described upper push stopping part.
According to some embodiments of the present invention, the internal perisporium of described second body being formed with groove, a part for described first body is contained in described groove.
According to some embodiments of the present invention, described first body includes first paragraph and the second segment of the one end being located at described first paragraph, and the external diameter of described second segment, less than the external diameter of described first paragraph, is enclosed within the periphery wall of described second segment outside described second body.
Further, described upper push stopping part offsets with the bottom of described first paragraph.
Alternatively, it is connected by soldering between described first body with described second body or Laser Welding connects.
The bent axle for compressor of embodiment according to a second aspect of the present invention, described compressor includes rotor and multiple piston, and described bent axle includes: the first body, and described first body is suitable to be located in the rotor hole of described rotor to be driven rotation by described rotor；Multiple second bodys, the internal diameter of described second body is more than the length of the external diameter of described first body and the described second body length less than described first body, multiple described second bodys are enclosed within described first body outside the axially spaced-apart of described first body, the upper end of described second body being positioned at the top is formed with the upper push stopping part raised up, it is enclosed within described first body outside described second body and the center axis deviation of the central axis of described second body and described first body, multiple described pistons are suitable to outer one by one being enclosed within the periphery wall of multiple described second body.
The bent axle for compressor according to embodiments of the present invention, by adopting the connection of the first body and multiple second body to design, bent axle 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 produces can be reduced simultaneously, improve the performance of compressor.It addition, by being formed with the upper push stopping part raised up in the upper end of the second body, it is possible to simplify the processing technique of bent axle.
Further, the lower end of described second body being positioned at bottom is formed with downwardly convex lower push stopping part.
The compressor of embodiment according to a third aspect of the present invention, including: the bent axle for compressor according to the above-mentioned first aspect of the present invention or second aspect embodiment；Piston and rotor, be enclosed within described first body to drive described first body to rotate outside described rotor, described piston jacket is on described second body.
Compressor according to embodiments of the present invention, by arranging above-mentioned bent axle, it is possible to reduces weight and the cost of compressor, the eccentric mass of compressor can be reduced simultaneously, improve the reliability of compressor, it is also possible to the useless power consumption produced when reducing crankshaft high-speed operating, improve the performance of compressor.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of compressor according to embodiments of the present invention；
Fig. 2 is the schematic diagram of bent axle according to an embodiment of the invention；
Fig. 3 is the enlarged diagram at A place in Fig. 2；
Fig. 4 is the schematic diagram of the first body of bent axle in Fig. 2；
Fig. 5 is the schematic diagram of the second body of bent axle in Fig. 2；
Fig. 6 is the schematic diagram of bent axle in accordance with another embodiment of the present invention；
Fig. 7 is the enlarged diagram at B place in Fig. 6；
Fig. 8 is the schematic diagram of the first body of bent axle in Fig. 6；
Fig. 9 is the schematic diagram of the second body of bent axle in Fig. 6.
Accompanying drawing labelling:
Compressor 100,
Bent axle 1, the first body 11, first paragraph 111, second segment 112, the second body 12, upper surface 121, intermediate incline 122a, intermediate incline 122b, lower surface 123, groove 124, upper push stopping part 13, lower push stopping part 14, oilhole 15,
Motor 2, rotor 21, stator 22, housing 3, base bearing 4, supplementary bearing 5, piston 6, cylinder 7, slide plate 8.
Detailed description of the invention
Being described below in detail embodiments of the invention, the example of described embodiment is shown in the drawings.The embodiment described below with reference to accompanying drawing is illustrative of, it is intended to is used for explaining the present invention, and is not considered as limiting the invention.
In describing the invention, it will be appreciated that, term " " center ", " length ", " thickness ", " on ", D score, a left side ", " right side ", top ", " end " " interior ", " outward ", " axially ", " radially ", the orientation of the instruction such as " circumference " or position relationship be based on orientation shown in the drawings or position relationship; be for only for ease of the description present invention and simplification description; rather than indicate or imply indication device or element must have specific orientation, with specific azimuth configuration and operation, be therefore not considered as limiting the invention.
Additionally, term " first ", " second " are only for descriptive purposes, and it is not intended that indicate or imply relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or implicitly include at least one this feature.In describing the invention, " multiple " are meant that at least two, for instance two, three etc., unless otherwise expressly limited specifically.
In the present invention, unless otherwise clearly defined and limited, the term such as term " installation ", " being connected ", " connection ", " fixing " should be interpreted broadly, for instance, it is possible to it is fixing connection, it is also possible to be removably connect, or integral；Can be mechanically connected, it is also possible to be electrical connection or each other can communication；Can be joined directly together, it is also possible to be indirectly connected to by intermediary, it is possible to be connection or the interaction relationship of two elements of two element internals, unless otherwise clear and definite restriction.For the ordinary skill in the art, it is possible to understand above-mentioned term concrete meaning in the present invention as the case may be.
Below with reference to Fig. 2-Fig. 9, the bent axle 1 for compressor 100 according to embodiments of the present invention is described.
As shown in Fig. 2-Fig. 9, the bent axle 1 for compressor 100 of embodiment according to a first aspect of the present invention, wherein compressor 100 includes compression mechanism, motor 2 and housing 3, compression mechanism and motor 2 are respectively provided in housing 3, motor 2 includes rotor 21 and stator 22, stator 22 is fixed on the inwall of housing 3, and rotor 21 is rotatably arranged in stator 22, and compression mechanism includes the elements such as base bearing 4, supplementary bearing 5, piston 6, cylinder 7, slide plate 8.It is understood that bent axle 1 may be used for compressor 100 such as rotary compressor.
Bent axle 1 includes the first body 11 and the second body 12.Wherein, the internal diameter of the second body 12 is more than length less than the first body 11 of the external diameter of the first body 11 and the length of the second body 12, the upper end of the second body 12 is formed with the upper push stopping part 13 raised up, thus can simplify the processing technique of bent axle 1, it is not necessary to additionally the parts of thrust function are played in processing.Being enclosed within the first body 11 outside second body 12 and the center axis deviation of the central axis of the second body 12 and the first body 11, piston 6 is enclosed within the periphery wall of the second body 12 outside being suitable to, and thus the second body 12 constitutes the eccentric part of bent axle 1.First body 11 is suitable to be located in the rotor hole of rotor 21 to be driven rotation by rotor 21, the second body 12 also concomitant rotation when the first body 11 rotates.
Thus, by adopting the connection of the first body 11 and the second body 12 to design, bent axle 1 weight can be greatly reduced, reduce cost, the eccentric mass of compressor 100 can be reduced, improve the reliability of compressor 100, bent axle 1 can be reduced simultaneously and run up the useless power consumption produced, improve the performance of compressor 100.
Wherein owing to the offset of bent axle 1 is determined by the radial dimension of the first body 11 and the second body 12, therefore by adopting first body the 11, second body 12 of different calibers can obtain the bent axle 1 of different offset, such that it is able to meet the demand that offset is changeable.Such as, the wall thickness of the first body 11 and the wall thickness of the second body 12 are all uniform, now the value of the offset of bent axle 1 deducts the external diameter of the first body 11 equal to the internal diameter of the second body 12, therefore when the offset of bent axle 1 is certain, namely when the internal diameter of the first body 11 and external diameter are all certain, under the premise ensureing bent axle 1 intensity, it is possible to by reducing the wall thickness of the first body 11, thus reducing the weight of bent axle 1 further, reducing cost.
Alternatively, the first body 11 and the second body 12 can be steel pipe, and all can be formed by the steel pipe cutting of the strip of corresponding caliber, so that the processing of bent axle 1 each several part is simple, and are easy to buying and storage, reduce production cost.
It is alternatively possible to the first body 11 and the second body 12 are carried out corresponding Wear-resistant Treatment, for instance nitrogenize, carburizing, the conventional surface treatment reducing abrasion such as molybdenum phosphatization.
It is understood that the fixed form between the first body 11 and the second body 12 can be various.For example, it is possible to make a part of internal perisporium of the second body 12 be welded on the periphery wall of the first body 11.
The bent axle 1 for compressor 100 according to embodiments of the present invention, by adopting the connection of the first body 11 and the second body 12 to design, bent axle 1 weight can be greatly reduced, reduce cost, the eccentric mass of compressor 100 can be reduced, improve the reliability of compressor 100, bent axle 1 can be reduced simultaneously and run up the useless power consumption produced, improve the performance of compressor 100.It addition, by being formed with the upper push stopping part 13 raised up in the upper end of the second body 12, it is possible to simplify the processing technique of bent axle 1.
Referring to Fig. 2-Fig. 5 detailed description according to an embodiment of the invention for the bent axle 1 of compressor 100.
Embodiment one,
With reference to Fig. 2-Fig. 5, in the present embodiment, with reference to Fig. 2 and Fig. 4, bent axle 1 includes the first body 11 and the second body 12, and the upper end of the second body 12 is formed with the upper push stopping part 13 raised up.Wherein, first body 11 includes first paragraph 111 and the second segment 112 of the one end (with reference to the lower end of first paragraph 111 in Fig. 2 and Fig. 4) being located at first paragraph 111, the external diameter of second segment 112, less than the external diameter of first paragraph 111, is enclosed within the periphery wall of second segment 112 outside the second body 12.Thus, it is possible to reduce the weight of bent axle 1, material saving, reduction cost further.Needing here to illustrate, the supplementary bearing 5 that the lower part of the second segment 112 of the first body 11 is with compressor 100 coordinates, and it is less that the external diameter of second segment 112 is arranged, it is also possible to reduce the contact area of bent axle 1 and supplementary bearing 5, such that it is able to reduce abrasion.
Certainly, the first body 11 can also be that external diameter is consistent.
Further, with reference to Fig. 2 and Fig. 3, the bottom of upper push stopping part 13 and first paragraph 111 offsets.Thus it is easy to be attached fixing by the second body 12 and the first body 11, and increases the contact area of the second body 12 and the first body 11, such that it is able to improve structural strength and the stability of bent axle 1.
With reference to Fig. 2 and Fig. 5, the internal perisporium of the second body 12 being formed with groove 124, a part for the first body 11 is contained in groove 124.For example, it may be a part for the second segment 112 of the first body 11 is contained in groove 124.Thus, it is possible to increase the contact area of the first body 11 and the second body 12, such that it is able to improve the structural strength of bent axle 1.Such as, when the first body 11 and the second body 12 are welded to connect, it is possible to increase the bonding area of the first body 11 and the second body 12, such that it is able to improve weld strength.Alternatively, the shape of the periphery wall of the first body 11 and the adhered shape of groove 124, thus can improve the structural stability of bent axle 1 further.
Additionally, by changing the radial depth of the second body 12 upper groove 124, the offset of bent axle 1 can be changed, thus when the caliber of the second body 12 and the first body 11 is selected, the groove 124 processing different radial depth can be passed through to form the bent axle 1 of different offset, such that it is able to meet the demand that offset is changeable further.
Alternatively, (in such as stove, copper brazing connects) can be connected between the first body 11 with the second body 12 by soldering or Laser Welding connects.Thus, welding deformation can be reduced by above-mentioned welding manner, improve the welding quality of bent axle 1.
It addition, with reference to Fig. 2-Fig. 5, the first body 11 and the second body 12 can also be respectively equipped with oilhole 15.It is understood that when being fixed on the first body 11 by the second body 12, on the first body 11 and the second body 12, the oilhole 15 of correspondence position can also use as fabrication hole simultaneously.Specifically, when the second body 12 is weldingly fixed on the first body 11, the securing members such as pin can be first passed through and sequentially pass through the oilhole 15 on the second body 12 and the first body 11, such that it is able to the second body 12 is positioned, then weld again so that the second body 12 and the first body 11 to weld location more convenient.After the second body 12 has welded with the first body 11, it is possible to above-mentioned pin is taken off.
With reference to Fig. 2 and Fig. 5, the upper surface 121 of the second body 12 is horizontal plane and is provided with intermediate incline 122a between upper push stopping part 13 and the upper surface 121 of the second body 12, and this intermediate incline 122a is from the edge of upper push stopping part 13 downwards and be tilted to the right and extend to the upper surface 121 of the second body 12.Thus, it is possible to reduce the weight of the second body 12 further, namely can reduce the weight of the eccentric part of bent axle 1, such that it is able to reduce the centrifugal intertia force that compressor 100 eccentric mass produces, improve the reliability of compressor 100 and material saving, reduction cost.Needing here to illustrate, " upper surface 121 of the second body 12 " described in this paragraph refers to that the top of the second body 12 removes the part of upper push stopping part 13 and intermediate incline 122a.
Alternatively, formed on the upper push stopping part 13 of the upper end of the second body 12 can be push stopping part 13 by being integrally cast with the second body 12, it is also possible to be formed by machining the second body 12.
Further, with reference to Fig. 2, the lower end of the second body 12 is formed with downwardly convex lower push stopping part 14, thus, by upper push stopping part 13 integral part of on the second body 12 and lower push stopping part 14, it is possible to moving axially of restriction bent axle 1.Alternatively, the structure of lower push stopping part 14 and upper push stopping part 13 can be identical, and the structure that thus can make bent axle 1 is well-balanced.
Such as, similarly, the lower surface 123 of the second body 12 is horizontal plane and also is provided with intermediate incline 122b between lower push stopping part 14 and the lower surface 123 of the second body 12, and this intermediate incline 122b is from the edge of lower push stopping part 14 upwards and be tilted to the right and extend to the lower surface 123 of the second body 12.Thus, it is possible to reduce the weight of the second body 12 further, namely can reduce the weight of the eccentric part of bent axle 1, improve the reliability of compressor 100 and material saving, reduction cost.Needing here to illustrate, " lower surface 123 of the second body 12 " described in this paragraph refers to that the bottom of the second body 12 removes the part of lower push stopping part 14 and intermediate incline 122b.
Alternatively, the lower push stopping part 14 formed in the lower end of the second body 12 can be that lower push stopping part 14 is by being integrally cast with the second body 12, it is also possible to is formed by machining the second body 12.
Certainly, the lower thrust function of bent axle 1 can also be realized by the axle head of bent axle 1.Such as, arranging the thrust plate with thrust function on the supplementary bearing 5 of compressor 100, the lower surface of bent axle 1 only can be supported with above-mentioned thrust plate, thus lower thrust function can also be realized, and moving axially of restriction bent axle 1.
Referring to Fig. 6-Fig. 9 detailed description in accordance with another embodiment of the present invention for the bent axle 1 of compressor 100.
Embodiment two,
With reference to Fig. 6-Fig. 9, the bent axle 1 in the present embodiment the difference is that only with above-described embodiment one: the structure of the second body 12.Other structures of bent axle 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, parts identical with embodiment one in the present embodiment adopt identical accompanying drawing labelling.
In the present embodiment, with reference to Fig. 6 and Fig. 9, the upper surface 121 of the second body 12 be the inclined-plane that the upper surface by upper push stopping part 13 is downward-sloping, and this inclined-plane is downward from the edge of upper push stopping part 13 and is tilted to the right and extends to the outer edge of the second body 12.Thus, it is possible to reduce the weight of the second body 12 further, namely can reduce the weight of the eccentric part of bent axle 1, such that it is able to reduce the centrifugal intertia force that compressor 100 eccentric mass produces, improve the reliability of compressor 100 and material saving, reduction cost.Needing here to illustrate, " upper surface 121 of the second body 12 " described in this paragraph refers to that the top of the second body 12 removes the part of upper push stopping part 13.
Alternatively, formed on the upper push stopping part 13 of the upper end of the second body 12 can be push stopping part 13 by being integrally cast with the second body 12, it is also possible to be formed by machining the second body 12.
Further, with reference to Fig. 2, the lower end of the second body 12 is formed with downwardly convex lower push stopping part 14, thus, by upper push stopping part 13 integral part of on the second body 12 and lower push stopping part 14, it is possible to moving axially of restriction bent axle 1.Alternatively, the structure of lower push stopping part 14 and upper push stopping part 13 can be identical, and the structure that thus can make bent axle 1 is well-balanced.
Such as, similarly, the lower surface 123 of the second body 12 can be by the acclivitous inclined-plane of lower surface of lower push stopping part 14, and this inclined-plane is from the edge of lower push stopping part 14 upwards and be tilted to the right and extend to the outer edge of the second body 12.Thus, it is possible to reduce the weight of the second body 12 further, namely can reduce the weight of the eccentric part of bent axle 1, improve the reliability of compressor 100 and material saving, reduction cost.Needing here to illustrate, " lower surface 123 of the second body 12 " described in this paragraph refers to that the bottom of the second body 12 removes the part of lower push stopping part 14.
Alternatively, the lower push stopping part 14 formed in the lower end of the second body 12 can be that lower push stopping part 14 is by being integrally cast with the second body 12, it is also possible to is formed by machining the second body 12.
Certainly, the lower thrust function of bent axle 1 can also be realized by the axle head of bent axle 1.Such as, arranging the thrust plate with thrust function on the supplementary bearing 5 of compressor 100, the lower surface of bent axle 1 only can be supported with above-mentioned thrust plate, thus lower thrust function can also be realized, and moving axially of restriction bent axle 1.
Needing here to illustrate, bent axle 1 may be used for single cylinder compressor, it is also possible to for multicylinder compressor, the content of foregoing description illustrates for bent axle 1 for single cylinder compressor, and bent axle 1 example for multicylinder compressor is described below.The following describes of originally asking, same parts all adopts accompanying drawing labelling same as described above.
The bent axle 1 for compressor 100 of embodiment according to a second aspect of the present invention, wherein compressor 100 includes rotor 21 and multiple piston 6, and bent axle 1 includes the first body 11 and multiple second body 12.
Specifically, the internal diameter of the second body 12 is more than length less than the first body 11 of the external diameter of the first body 11 and the length of the second body 12, multiple second bodys 12 are enclosed within the first body 11 outside the axially spaced-apart of the first body 11, the upper end of the second body 12 being positioned at the top is formed with the upper push stopping part 13 raised up, being enclosed within the first body 11 outside second body 12 and the center axis deviation of the central axis of the second body 12 and the first body 11, multiple pistons 6 are suitable to outer one by one being enclosed within the periphery wall of multiple second body 12.Thus, multiple second bodys 12 constitute multiple eccentric parts of bent axle 1.First body 11 is suitable to be located in the rotor hole of rotor 21 to be driven rotation by rotor 21, multiple second body 12 also concomitant rotation when the first body 11 rotates.
Thus, by adopting the connection of the first body 11 and multiple second body 12 to design, bent axle 1 weight can be greatly reduced, reduce cost, the eccentric mass of compressor 100 can be reduced, improve the reliability of compressor 100, bent axle 1 can be reduced simultaneously and run up the useless power consumption produced, improve the performance of compressor 100.It addition, by being formed with the upper push stopping part 13 raised up in the upper end of the second body 12, it is possible to simplify the processing technique of bent axle 1.
Wherein, the beneficial effect brought for above-mentioned technical characteristic is referred to the content that the above-mentioned first aspect embodiment of the present invention describes, and repeats no more here.
Certainly, other additional technical features of the bent axle 1 for compressor 100 of the above-mentioned first aspect embodiment of the present invention and corresponding beneficial effect are equally applicable to the bent axle 1 for compressor 100 of second aspect present invention embodiment, repeat no more here.
The bent axle 1 for compressor 100 according to embodiments of the present invention, by adopting the connection of the first body 11 and multiple second body 12 to design, bent axle 1 weight can be greatly reduced, reduce cost, the eccentric mass of compressor 100 can be reduced, improve the reliability of compressor 100, bent axle 1 can be reduced simultaneously and run up the useless power consumption produced, improve the performance of compressor 100.It addition, by being formed with the upper push stopping part 13 raised up in the upper end of the second body 12, it is possible to simplify the processing technique of bent axle 1.
In further embodiment of the present invention, the lower end of the second body 12 being positioned at bottom is formed with downwardly convex lower push stopping part 14.Thus, by the integral part of lower push stopping part 14 in lower end of push stopping part 13 on the upper end of the second body 12 being positioned at the top is integral part of and the second body 12 being positioned at bottom, it is possible to moving axially of restriction bent axle 1.Alternatively, the structure of lower push stopping part 14 and upper push stopping part 13 can be identical, and the structure that thus can make bent axle 1 is well-balanced.
Certainly, the lower thrust function of bent axle 1 can also be realized by the axle head of bent axle 1.Such as, arranging the thrust plate with thrust function on the supplementary bearing 5 of compressor 100, the lower surface of bent axle 1 only can be supported with above-mentioned thrust plate, thus lower thrust function can also be realized, and moving axially of restriction bent axle 1.
Referring to Fig. 1, compressor 100 according to embodiments of the present invention is described.
As it is shown in figure 1, the compressor 100 of embodiment according to a third aspect of the present invention, including bent axle 1, piston 6 and rotor 21.
Specifically, bent axle 1 is the bent axle 1 for compressor 100 according to the above-mentioned first aspect of the present invention or second aspect embodiment, is enclosed within the first body 11 to drive the first body 11 to rotate, is enclosed within the second body 12 outside piston 6 outside rotor 21.When compressor 100 is single cylinder compressor, compressor 100 includes a cylinder 7 and piston 6, and bent axle 1 is the bent axle 1 according to the above-mentioned first aspect embodiment of the present invention；When compressor 100 is multicylinder compressor, compressor 100 includes multiple cylinder 7 and multiple piston 6, and bent axle 1 is the bent axle 1 according to the above-mentioned second aspect embodiment of the present invention.
Compressor 100 according to embodiments of the present invention, by arranging above-mentioned bent axle 1, weight and the cost of compressor 100 can be reduced, the eccentric mass of compressor 100 can be reduced simultaneously, improve the reliability of compressor 100, the useless power consumption produced when bent axle 1 runs up can also be reduced, improve the performance of compressor 100.
In the description of this specification, specific features, structure, material or feature that the description of reference term " embodiment ", " some embodiments ", " example ", " concrete example " or " some examples " etc. means in conjunction with this embodiment or example describe are contained at least one embodiment or the example of the present invention.In this manual, the schematic representation of above-mentioned term is necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature can combine in one or more embodiments in office or example in an appropriate manner.Additionally, when not conflicting, the feature of the different embodiments described in this specification or example and different embodiment or example can be carried out combining and combining by those skilled in the art.
Although above it has been shown and described that embodiments of the invention, it is understandable that, above-described embodiment is illustrative of, it is impossible to be interpreted as limitation of the present invention, and above-described embodiment can be changed, revises, replace and modification by those of ordinary skill in the art within the scope of the invention.
Claims (11)
1., for a bent axle for compressor, described compressor includes rotor and piston, it is characterised in that described bent axle includes:
First body, described first body is suitable to be located in the rotor hole of described rotor to be driven rotation by described rotor；
Second body, the internal diameter of described second body is more than the length of the external diameter of described first body and the described second body length less than described first body, the upper end of described second body is formed with the upper push stopping part raised up, being enclosed within described first body outside described second body and the center axis deviation of the central axis of described second body and described first body, described piston is suitable to outer being enclosed within the periphery wall of described second body.
2. the bent axle for compressor according to claim 1, it is characterised in that the upper surface of described second body be horizontal plane and described upper push stopping part and described second body upper surface between be provided with intermediate incline.
3. the bent axle for compressor according to claim 1, it is characterised in that the upper surface of described second body is the inclined-plane that the upper surface by described upper push stopping part is downward-sloping.
4. the bent axle for compressor according to any one of claim 1-3, it is characterised in that the lower end of described second body is formed with downwardly convex lower push stopping part, and described lower push stopping part is identical with the structure of described upper push stopping part.
5. the bent axle for compressor according to claim 1, it is characterised in that being formed with groove on the internal perisporium of described second body, a part for described first body is contained in described groove.
6. the bent axle for compressor according to claim 1, it is characterized in that, described first body includes first paragraph and the second segment of the one end being located at described first paragraph, and the external diameter of described second segment, less than the external diameter of described first paragraph, is enclosed within the periphery wall of described second segment outside described second body.
7. the bent axle for compressor according to claim 6, it is characterised in that the bottom of described upper push stopping part and described first paragraph offsets.
8. the bent axle for compressor according to claim 1, it is characterised in that be connected by soldering between described first body with described second body or Laser Welding connects.
9., for a bent axle for compressor, described compressor includes rotor and multiple piston, it is characterised in that described bent axle includes:
First body, described first body is suitable to be located in the rotor hole of described rotor to be driven rotation by described rotor；
Multiple second bodys, the internal diameter of described second body is more than the length of the external diameter of described first body and the described second body length less than described first body, multiple described second bodys are enclosed within described first body outside the axially spaced-apart of described first body, the upper end of described second body being positioned at the top is formed with the upper push stopping part raised up, it is enclosed within described first body outside described second body and the center axis deviation of the central axis of described second body and described first body, multiple described pistons are suitable to outer one by one being enclosed within the periphery wall of multiple described second body.
10. the bent axle for compressor according to claim 9, it is characterised in that the lower end of described second body being positioned at bottom is formed with downwardly convex lower push stopping part.
11. a compressor, it is characterised in that including:
The bent axle for compressor according to any one of claim 1-10；
Piston and rotor, be enclosed within described first body to drive described first body to rotate outside described rotor, described piston jacket is on described second 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 |
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| CN105736380A true CN105736380A (en) | 2016-07-06 |
| CN105736380B CN105736380B (en) | 2019-01-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610230307.XA Active CN105736380B (en) | 2016-04-13 | 2016-04-13 | Crankshaft for compressor and the compressor with it |
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Citations (6)
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|---|---|---|---|---|
| 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 |
| CN204755563U (en) * | 2015-04-01 | 2015-11-11 | 上海日立电器有限公司 | Rolling rotor compressor bent axle |
| CN105257508A (en) * | 2015-11-02 | 2016-01-20 | 安徽美芝精密制造有限公司 | Crankshaft for compressor and compressor with 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 |
| 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 |
-
2016
- 2016-04-13 CN CN201610230307.XA patent/CN105736380B/en active Active
Patent Citations (6)
| 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 |
| CN105257508A (en) * | 2015-11-02 | 2016-01-20 | 安徽美芝精密制造有限公司 | Crankshaft for compressor and compressor with crankshaft |
| 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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| Publication number | Publication date |
|---|---|
| CN105736380B (en) | 2019-01-04 |
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