CN206221269U - For the bent axle and compressor of compressor - Google Patents

Abstract

The utility model discloses a kind of bent axle and compressor for compressor, compressor includes rotor and piston, and bent axle includes：First body and the second body, first body is located in the rotor hole of rotor and drives rotation with by rotor, first body is provided with eccentric segment, the central axis of the remainder of the body of center axis deviation first of eccentric segment, external diameter of the internal diameter of the second body more than the first body, be enclosed within outside second body on eccentric segment and the central axis of the second body and the first body center axis deviation, piston is suitable to outer being enclosed within the periphery wall of the second body.It is the first body and the second body by by crankshaft designs according to bent axle of the present utility model, the weight of bent axle can be mitigated, reduce the eccentric mass of compressor, so as to reduce useless power consumption when crankshaft high-speed is operated, improves the performance of compressor.And eccentric segment is provided with the first body, offset can be made to be adjusted flexibly interior in a big way, to meet the real work needs of compressor.

Description

For the bent axle and compressor of compressor

Technical field

The utility model is related to Compressor Technology field, specifically, more particularly to a kind of bent axle for compressor and Compressor.

Background technology

The crankshaft structure of rotary compressor generally uses integral type casting, and weight is big, and price is high, and difficulty of processing is larger. The quality of solid off-centre operation constitutes the major part of eccentric mass, off-centre operation quality can influence balance weight counterweight on rotor and The centrifugal intertia force produced with the compressor eccentric mass of axis decentraction, so as to influence the reliability of compressor.

The function of bent axle be the power for transmitting rotor to the pump housing, the enough rigidity of bent axle needs, casting needs wall thickness Increase intensity, prevent deflection deformation from causing the bearing wear to increase, and bent axle itself carries out revolution and produces useless power consumption, power consumption with The quality of bent axle is related, and the larger bent axle of quality has a negative impact to compressor performance aspect.

In correlation technique, to reduce bent axle weight, reduce the eccentric mass of compressor, reduce what crankshaft high-speed operating was produced Useless power consumption, improves the performance of compressor, by bent axle using two steel pipe socket designs.However, this offset to bent axle Scope of design generates certain limitation.

Utility model content

The utility model is intended at least solve to a certain extent one of technical problem in correlation technique.Therefore, this reality With a kind of bent axle for compressor of new proposition, the bent axle for compressor has the advantages that low cost, light weight.

The utility model also proposed a kind of compressor, and the compressor has the song for compressor described above Axle.

According to the bent axle for compressor of the utility model embodiment, the compressor includes rotor and piston, described Bent axle includes：First body, first body is suitable to be located in the rotor hole of the rotor and rotated with being driven by the rotor, First body is provided with eccentric segment, the center of the remainder of the first body described in the center axis deviation of the eccentric segment Axis；With the second body, the internal diameter of second body is more than the external diameter of first body and the length of second body Less than the length of first body, be enclosed within outside second body on the eccentric segment and second body central axis With the center axis deviation of first body, the piston is suitable to outer being enclosed within the periphery wall of second body.

It is the first body and second by by crankshaft designs according to the bent axle for compressor of the utility model embodiment Body, can mitigate the weight of bent axle, and reduce the eccentric mass of compressor, so as to reduce compressor drum balance weight Weight mass, the useless power consumption that produces when crankshaft high-speed is operated is reduced, so as to improve the performance of compressor.And Eccentric segment is provided with one body, is enclosed within eccentric segment outside the second body, the eccentric amount e of bent axle can be by the bias of the first body Amount e1 and the second body eccentric amount e 2 are bonded, thus, it is possible to the offset of bent axle is adjusted flexibly interior in a big way, with Meet the real work needs of compressor.

According to one embodiment of the present utility model, the upper end of second body be formed with raise up it is upper only Pushed section, the upper push stopping part and first body stop to.

According to one embodiment of the present utility model, the upper surface of second body is horizontal plane and the upper push stopping part Intermediate incline is provided with and the upper surface of second body between.

According to one embodiment of the present utility model, the lower end of second body be formed with it is downwardly convex it is lower only Pushed section, the lower push stopping part is stopped to the lower push stopping part is identical with the structure of the upper push stopping part with first body.

According to one embodiment of the present utility model, the lower end of first body is formed with lower push stopping part, described to stop down Pushed section and the bearing of the compressor stop to.

According to one embodiment of the present utility model, form fluted on the internal perisporium of second body, described first A part for body is contained in the groove.

According to one embodiment of the present utility model, the remainder of the external diameter less than first body of the eccentric segment External diameter.

According to one embodiment of the present utility model, soldering connection is passed through between first body and second body Or Laser Welding connection.

According to the bent axle for compressor of the utility model embodiment, the compressor includes rotor and multiple pistons, The bent axle includes：First body, first body is suitable to be located at and is driven with by the rotor in the rotor hole of the rotor Rotate, axially spaced-apart is provided with multiple eccentric segments, the first pipe described in the center axis deviation of the eccentric segment on first body The central axis of the remainder of body；Multiple second bodys, the external diameter of the internal diameter more than first body of second body And the length of second body is less than the length of first body, multiple second bodys are outer one by one to be enclosed within described in multiple On eccentric segment, the upper push stopping part for raising up, described second are formed with positioned at the upper end of second body of the top The center axis deviation of the central axis of body and first body, multiple pistons are suitable to outer one by one being enclosed within described in multiple On the periphery wall of the second body.

According to the bent axle for compressor of the utility model embodiment, bent axle can be used for the compressor of multi cylinder, lead to The lower push stopping part for crossing the upper push stopping part positioned at the second body upper end of the top and the second bottom of the pipe positioned at bottom can be with Axial limiting backstop is carried out to the second body and bearing, compressor is prevented during high-speed cruising, the second body and bearing are sent out Raw axial displacement and influence the normal work of compressor.

According to one embodiment of the present utility model, it is formed with positioned at the lower end of second body of bottom convex downwards The lower push stopping part for rising.

According to the compressor of the utility model embodiment, including：Bent axle for compressor described above；Piston and turn Son, is enclosed within first body outside the rotor to drive first body to rotate, and the piston jacket is described second On body.

It is the first body and the second body by by crankshaft designs according to the compressor of the utility model embodiment, can be with Mitigate the weight of bent axle, and reduce the eccentric mass of compressor, so as to reduce compressor drum balance weight with heavy Amount, reduces the useless power consumption produced when crankshaft high-speed is operated, so as to improve the performance of compressor.And on the first body Eccentric segment is provided with, is enclosed within eccentric segment outside the second body, the eccentric amount e of bent axle can deviate the by the eccentric segment of the first body In the central axis and the second body of the groove of the body of eccentric amount e 1 and second of the central axis of the remainder of one body The offset of heart axis is bonded for e2, thus, it is possible to the offset of bent axle is adjusted flexibly interior in a big way, to meet The real work of compressor needs.

Brief description of the drawings

Fig. 1 is the explosive view of the bent axle for compressor according to the utility model embodiment；

Fig. 2 is the axial sectional view of the bent axle for compressor according to the utility model embodiment；

Fig. 3 is the circumferential sectional view of the bent axle for compressor according to the utility model embodiment；

Fig. 4 is the axial sectional view of the first body of the bent axle for compressor according to the utility model embodiment；

Fig. 5 is the circumferential sectional view of the first body of the bent axle for compressor according to the utility model embodiment；

Fig. 6 is the axial sectional view of the second body of the bent axle for compressor according to the utility model embodiment；

Fig. 7 is the top view of the second body of the bent axle for compressor according to the utility model embodiment；

Fig. 8 is the structural representation of the compressor according to the utility model embodiment.

Reference：

Bent axle 100, crankshaft eccentric amount e,

First body 10, eccentric segment 110, the first body eccentric amount e 1,

Second body 20, periphery wall 210, upper surface 220, upper push stopping part 221, lower surface 230, lower push stopping part 231, groove 240, the second body eccentric amount e 2,

Compressor 300,

Electric machine assembly 30, compression assembly 35, piston 310, rotor 320, housing 330, stator 340, cylinder 350, compression chamber 351, bearing 360.

Specific embodiment

Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings.Below by The embodiment being described with reference to the drawings is exemplary, it is intended to for explaining the utility model, and it is not intended that new to this practicality The limitation of type.

In description of the present utility model, it is to be understood that term " " center ", " length ", " on ", D score, " preceding ", " afterwards ", the orientation or position relationship of the instruction such as "left", "right", " level ", " top ", " bottom ", " interior ", " outward ", " axial direction ", " radial direction " It is, based on orientation shown in the drawings or position relationship, to be for only for ease of description the utility model and simplify description, without referring to Show or imply that the device or element of meaning with specific orientation, with specific azimuth configuration and operation, therefore must can not be managed Solution is to limitation of the present utility model.

Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that indicating or implying relative importance Or the implicit quantity for indicating indicated technical characteristic.Thus, define " first ", the feature of " second " can express or Implicitly include at least one this feature.In description of the present utility model, " multiple " is meant that at least two, such as two It is individual, three etc., unless otherwise expressly limited specifically.

In the utility model, unless otherwise clearly defined and limited, term " installation ", " connected ", " connection ", " Gu It is fixed " etc. term should be interpreted broadly, for example, it may be fixedly connected, or be detachably connected, or integrally；Can be Mechanically connect, or electrically connect or can communicate each other；Can be joined directly together, it is also possible to by the indirect phase of intermediary Even, can be two element internals connection or two interaction relationships of element, unless otherwise clearly restriction.For this For the those of ordinary skill in field, concrete meaning of the above-mentioned term in the utility model can be as the case may be understood.

The bent axle 100 for compressor 300 according to the utility model embodiment is described below with reference to Fig. 1-Fig. 8.

As Figure 1-Figure 8, according to the bent axle 100 for compressor 300 of the utility model embodiment, wherein compressor 300 include electric machine assembly 30, compression assembly 35, bent axle 100 and housing 330, electric machine assembly 30, compression assembly 35 and bent axle 100 It is arranged in housing 330.Electric machine assembly 30 includes rotor 320 and the grade part of stator 340, and rotor is enclosed within one end of bent axle 100 In 320.Compression assembly 35 includes：The parts such as bearing 360, piston 310, cylinder 350, cylinder 350 has compression chamber 351, piston It is enclosed within bent axle 100 outside 310, bent axle 100 can be compressed along the operating of the inwall of cylinder 350 with piston 310 to refrigerant.Can To understand, bent axle 100 can be used for compressor 300, such as rotary compressor, and bent axle 100 can include：First body 10 and second body 20.

Specifically, as depicted in figs. 1 and 2, it is enclosed within rotor 320 in the first body 10, rotor 320 can band when rotating Dynamic first body 10 is rotated.First body 10 is provided with eccentric segment 110, first body of center axis deviation 10 of eccentric segment 110 Remainder central axis, and offset be e1 (as shown in Figure 2).The internal diameter of the second body 20 is more than the first body 10 External diameter, the second body 20 can be designed as the eccentric part (as shown in Figure 2) with eccentric amount e 2.The is enclosed within outside second body 20 On the eccentric segment 110 of one body 10 and the central axis of the second body 20 and the first body 10 center axis deviation, the deviation Measure as total offset of bent axle 100 is e (as shown in Figure 2), eccentric amount e, e1 and e2 meet：E=e1+e2.The overcoat of piston 310 On the second body 20, the length of the length less than the first body 10 of the second body 20.

The bent axle 100 of the compressor 300 according to the utility model embodiment, the first body is designed as by by bent axle 100 10 and second body 20, the weight of bent axle 100 can be mitigated, and the eccentric mass of compressor 300 is reduced, so as to reduce The weight mass of the balance weight of 300 rotor of compressor 320, reduces the useless power consumption produced when bent axle 100 runs at high speed, so as to carry The performance of compressor 300 high.And eccentric segment 110 is provided with the first body 10, eccentric segment is enclosed within outside the second body 20 On 110, the eccentric amount e of bent axle 100 can combine structure by the eccentric amount e 2 of the body 20 of eccentric amount e 1 and second of the first body 10 Into, thus, it is possible to the eccentric amount e of bent axle 100 is adjusted flexibly interior in a big way, to meet the real work of compressor 300 Need.

According to one embodiment of the present utility model, as shown in Fig. 2 the upper end of the second body 20 be formed with it is convex The upper push stopping part 221 for rising, upper push stopping part 221 is only supported with the first body 10.Thus, it is possible to realize the axial direction limit of the second body 20 Position, during preventing bent axle 100 from running at high speed, there is the axial movement influence normal work of compressor 300 in the second body 20.As schemed In 2 shown in example, the upper surface 220 of the second body 20 is set to plane, and upper surface 220 is formed as upper push stopping part 221.Second pipe It is enclosed within when on the eccentric segment 110 of the first body 10 outside body 20, upper push stopping part 221 is mutually only supported with axial direction with the first body 10 The upper movement for limiting the second body 20.

In some embodiments of the present utility model, the upper surface 220 of the second body 20 is horizontal plane and upper push stopping part 221 Intermediate incline is provided with and the upper surface 220 of the second body 20 between.Thus, it is possible to further reduce the weight of the second body 20, The weight of the eccentric part of bent axle 100 can be reduced, such that it is able to reduce the centrifugation inertia of the eccentric mass of compressor 300 generation Power.The weight mass of the balance weight of the rotor 320 of compressor 300 is reduced, materials has been saved, has been reduced cost, and improve pressure The reliability of operation of contracting machine 300

According to one embodiment of the present utility model, as shown in Fig. 2 the lower end of the second body 20 be formed with it is convex downwards The lower push stopping part 231 for rising.Lower push stopping part 231 is only supported with the first body 10, the structure phase of lower push stopping part 231 and upper push stopping part 221 Together.Thus, it is possible to carry out axial limiting to the second body 20 in the lower end of the second body 20, prevent bent axle 100 from running at high speed There is the axial movement influence normal work of compressor 300 in Cheng Zhong, the second body 20.As shown in example in Fig. 2, the second body 20 Lower surface 230 is set to plane, and lower surface 230 is formed as lower push stopping part 231.The inclined of the first body 10 is enclosed within outside second body 20 In heart section 110, lower push stopping part 231 mutually only supports to limit the movement of the second body 20 in the axial direction with the first body 10.

According to one embodiment of the present utility model, the lower end of the first body 10 is formed with lower push stopping part 231, lower push stopping part 231 only support with the bearing 360 of compressor 300.Thus, it is possible to pass through the lower push stopping part 231 of the first body 10 and bearing 360 carry out Spacing fixation on axial direction.Prevent the part of bearing 360 in the case of high-speed cruising of compressor 300 from axial movement occurring and influences The normal operation of compressor 300.

According to one embodiment of the present utility model, as shown in fig. 7, forming fluted on the internal perisporium of the second body 20 240, a part for the first body 10 is contained in groove 240.Thus, it is possible to pass through the groove 240 on the second body 20, by It is enclosed within the eccentric segment 110 of the first body 10 outside two bodys 20.As shown in fig. 7, being provided with the internal perisporium of the second body 20 The groove 240 of circular arc.Correspondingly, as shown in figure 5, being provided with and groove on the periphery wall 210 of the eccentric segment 110 of the first body 240 arc sections being adapted, the second body 20 can be set on the arc section of the first body 10 by groove 240.So as to just Assembling between the first body 10 and the second body 20, and the eccentric amount e of bent axle 100 can be increased.

According to one embodiment of the present utility model, as shown in figure 4, the external diameter of eccentric segment 110 is less than the first body 10 The external diameter of remainder.Thus, it is possible to facilitate the assembly connection between the first body 10 and the second body 20, and the first body 10 and the second body 20 assemble after, remainder caliber can be to the second body in the part that radial direction grows eccentric segment 110 20 play a part of axial limiting backstop is fixed with carrying out axial limiting to the second body 20.

In some embodiments of the present utility model, can be by soldering connection between the first body 10 and the second body 20 Or Laser Welding connection.Thus, it is possible to ensure the solid and reliable property of assembly connection between the first body 10 and the second body 20.Prevent Bent axle 100 is slided in the case where running at high speed between the first body 10 and the second body 20, influence compressor 300 Normal work.

According to the bent axle 100 for compressor 300 of another embodiment of the utility model, wherein compressor 300 includes Rotor 320 and multiple pistons 310.Bent axle 100 includes：First body 10 and multiple second bodys 20.

Specifically, the first body 10 is suitable to be located in the rotor hole of rotor 320 and drives rotation with by rotor 320.Change speech It, is placed in rotor hole in the first body 10, drives the first body 10 to rotate by rotor 320.It is square vertically on first body 10 To being interval with multiple eccentric segments 110, the central shaft of the remainder of first body of center axis deviation 10 of eccentric segment 110 Line.The internal diameter of the second body 20 is less than the length of the first body 10 more than the external diameter of the first body 10 and the length of the second body 20 Degree.Multiple second bodys 20 are outer one by one to be enclosed within multiple eccentric segments 110, i.e., correspondence is arranged with one the on each eccentric segment 110 Two bodys 20.Wherein, the upper push stopping part 221 for raising up is formed with positioned at the upper end of the second body 20 of the top.The The center axis deviation of the central axis of two bodys 20 and the first body 10, multiple pistons 310 are suitable to outer one by one be enclosed within multiple the On the periphery wall 210 of two bodys 20.In other words, correspondence is arranged with a piston 310 on each second body 20.

According to the bent axle 100 for compressor 300 of the utility model embodiment, can be used for the compression of multi cylinder 350 Machine 300.The first body 10 and the second body 20 are designed as by by bent axle 100, the weight of bent axle 100 can be mitigated, and subtract The small eccentric mass of compressor 300, so as to reduce the weight mass of the balance weight of 300 rotor of compressor 320.Reduce bent axle 100 useless power consumptions produced when running at high speed, so as to improve the performance of compressor 300.And set on the first body 10 There is eccentric segment 110, be enclosed within eccentric segment 110 outside the second body 20, the eccentric amount e of bent axle 100 can be made in interior spirit in a big way Adjustment living, to meet the real work needs of compressor 300.

According to one embodiment of the present utility model, it is formed with positioned at the lower end of the second body 20 of bottom downwardly convex Lower push stopping part 231.Thus, it is possible to mutually be stopped with the miscellaneous part (such as bearing 360) on bent axle 100 by lower push stopping part 231 Support, so as to carry out axial limiting to the second body 20.Prevent that axial movement influence compression occurs in the operation process of the second body 20 The normal work of machine 300.

Described in detail according to of the present utility model for compressor with two specific embodiments referring to Fig. 1-Fig. 8 300 bent axle 100.It is worth understanding, subordinate's description is merely illustrative, rather than to specific limit of the present utility model System.

Embodiment one：

As shown in figure 8, compressor 300 includes electric machine assembly 30, compression assembly 35, bent axle 100 and housing 330.Group of motors Part 30, compression assembly 35 and bent axle 100 are arranged in housing 330, and electric machine assembly 30 includes rotor 320 and the grade part of stator 340. It is enclosed within one end of bent axle 100 in rotor 320, compression assembly 35 includes：The parts such as bearing 100, piston 310, cylinder 350.Gas Cylinder 350 has compression chamber 351, and piston 310 is enclosed within bent axle 100 outward, and bent axle 100 can be with piston 310 along the inwall of cylinder 350 Operating is compressed to refrigerant.

Wherein, as depicted in figs. 1 and 2, bent axle 100 includes：First body 10 and the second body 20.The inner sleeve of first body 10 In rotor 320, rotor 320 can drive the first body 10 to rotate when rotating.First body 10 is provided with eccentric segment 110, partially The external diameter of the external diameter less than the remainder of the first body 10 of heart section 110.As shown in figure 5, eccentric segment 110 can be by Crescent is cut off on the periphery wall of one body 10 to be formed.Correspondingly, as shown in fig. 7, being set on the internal perisporium of the second body 20 There is the groove 240 that ground circular arc is adapted with eccentric segment 110.The central axis of the central axis of groove 240 and the second body 20 Deviate, and offset is e2., more than the external diameter of the first body 10, the second body 20 can be by groove for the internal diameter of the second body 20 240 are set on the eccentric segment 110 of the first body 10.Can be by soldering connection between first body 10 and the second body 20. Thus, it is possible to ensure the reliability of assembly connection between the first body 10 and the second body 20.

The central axis of the remainder of first body of center axis deviation 10 of eccentric segment 110, and offset is e1.The Be enclosed within the eccentric segment 110 of the first body 10 outside two bodys 20 and the central axis of the second body 20 and the first body 10 center Axis runout, offset is e.The eccentric amount e is total eccentric amount e of bent axle 100, meets e=e1+e2.The is enclosed within outside piston 310 On two bodys 20.

As shown in example in Fig. 2, the length of the length less than the first body 10 of the second body 20.The upper end of the second body 20 Face 220 is set to plane, and upper surface 220 is formed as upper push stopping part 221.Upper push stopping part 221 and the first body 10 mutually only support with The movement of the second body 20 is limited on axial direction.The lower surface 230 of the second body 20 is set to plane, and lower surface 230 is formed It is lower push stopping part 231, lower push stopping part 231 mutually only supports to limit the shifting of the second body 20 in the axial direction with the first body 10 It is dynamic.

Thus, the first body 10 and the second body 20 are designed as by by bent axle 100, the weight of bent axle 100 can be mitigated, And the eccentric mass of compressor 300 is reduced, so as to reduce the weight mass of the balance weight of 300 rotor of compressor 320, is reduced The useless power consumption that bent axle 100 is produced when running at high speed, so as to improve the performance of compressor 300.And in the first body 10 On be provided with eccentric segment 110, be enclosed within eccentric segment 110 outside the second body 20.The eccentric amount e of bent axle 100 can be by the first body 10 eccentric segment 110 deviates the groove of the body 20 of eccentric amount e 1 and second of the central axis of the remainder of the first body 10 The offset of 240 central axis and the central axis of the second body 20 is bonded for e2.Thus, it is possible to make bent axle 100 Eccentric amount e is adjusted flexibly interior in a big way, to meet the real work needs of compressor 300.

Embodiment two：

Different from embodiment one, in this embodiment, compressor 300 includes rotor 320 and multiple pistons 310, bent axle 100 Including：First body 10 and multiple second bodys 20.Multiple eccentric segments 110 are in axial direction interval with first body 10, Each eccentric segment 110 correspondence is outer to be cased with second body 20.Upper end positioned at the second body 20 of the top is formed with The upper push stopping part 221 for raising up, the lower end positioned at the second body 20 of bottom is formed with downwardly convex lower push stopping part 231.The center axis deviation of the central axis of the second body 20 and the first body 10, correspondence is arranged with each second body 20 One piston 310.

Thus, the bent axle 100 of the embodiment can be used for the compressor 300 of multi cylinder 350, by positioned at the of the top The upper push stopping part 221 of the upper end of two body 20 and the lower push stopping part 231 positioned at the lower end of the second body 20 of bottom can be to second Body 20 and bearing 360 carry out axial limiting backstop, prevent compressor 300 during high-speed cruising, the second body 20 and axle Hold 360 generation axial displacements and influence the normal work of compressor 300.

Compressor 300 according to the utility model embodiment, including：The above-mentioned bent axle 100 for compressor 300, work Plug 310 and rotor 320.

Specifically, as shown in figure 8, compressor 300 includes electric machine assembly 30, compression assembly 35, bent axle 100 and housing 330 grade parts.Electric machine assembly 30, compression assembly 35 and bent axle 100 are arranged in housing 330, and electric machine assembly 30 includes rotor 320 With the grade part of stator 340.Compression assembly 35 includes：The parts such as bearing 100, piston 310, cylinder 350.The is enclosed within outside rotor 320 On one body 10, rotor 320 can drive the first body 10 to rotate.The eccentric segment of the first body 10 is enclosed within outside second body 20 On 110, it is enclosed within the second body 20 outside piston 310.When rotor 320 is rotated, the work being enclosed within the second body 20 can be driven Plug 310 is operated.Piston 310 is compressed along the internal perisporium operating of cylinder 350 to the refrigerant in compression chamber 351, so as to realize The compression function of compressor 300.

Compressor 300 according to the utility model embodiment, the first body 10 and the second pipe are designed as by by bent axle 100 Body 20, can mitigate the weight of bent axle 100, and reduce the eccentric mass of compressor 300, so as to reduce compressor 300 The weight mass of the balance weight of rotor 320, reduces the useless power consumption produced when bent axle 100 runs at high speed, so as to improve compression The performance of machine 300.And eccentric segment 110 is provided with the first body 10, is enclosed within eccentric segment 110 outside the second body 20.It is bent The eccentric amount e of axle 100 can be deviateed the central axis of the remainder of the first body 10 by the eccentric segment 110 of the first body 10 The central axis of the groove 240 of the body 20 of eccentric amount e 1 and second is with the offset of the central axis of the second body 20 for e2 is combined Constitute.Thus, it is possible to the eccentric amount e of bent axle 100 is adjusted flexibly interior in a big way, to meet the actual work of compressor 300 Need.

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 specific features, structure, material or spy that the embodiment or example are described Point is contained at least one embodiment of the present utility model or example.In this manual, to the schematic table of above-mentioned term State and be necessarily directed to identical embodiment or example.And, the specific features of description, structure, material or feature can be with Combined in an appropriate manner in any one or more embodiments or example.Additionally, in the case of not conflicting, this area Technical staff the feature of the different embodiments or example described in this specification and different embodiment or example can be entered Row is combined and combined.

Although embodiment of the present utility model has been shown and described above, it is to be understood that above-described embodiment is Exemplary, it is impossible to it is interpreted as to limitation of the present utility model, one of ordinary skill in the art is in scope of the present utility model It is interior above-described embodiment to be changed, changed, replaced and modification.

Claims (11)

1. a kind of bent axle for compressor, the compressor includes rotor and piston, it is characterised in that the bent axle includes：

First body, first body is suitable to be located in the rotor hole of the rotor with by rotor driving rotation, described First body is provided with eccentric segment, the central shaft of the remainder of the first body described in the center axis deviation of the eccentric segment Line；With

Second body, the internal diameter of second body is less than more than the external diameter of first body and the length of second body The length of first body, be enclosed within outside second body on the eccentric segment and second body central axis and institute The center axis deviation of the first body is stated, the piston is suitable to outer being enclosed within the periphery wall of second body.

2. the bent axle for compressor according to claim 1, it is characterised in that the bodily form of upper end one of second body Into there is the upper push stopping part that raises up, the upper push stopping part and first body stop to.

3. the bent axle for compressor according to claim 2, it is characterised in that the upper surface of second body is water Intermediate incline is provided between the upper surface of plane and the upper push stopping part and second body.

4. the bent axle for compressor according to claim 2, it is characterised in that the bodily form of lower end one of second body Into there is downwardly convex lower push stopping part, the lower push stopping part is stopped to the lower push stopping part is above stopped with described with first body The structure of pushed section is identical.

5. the bent axle for compressor according to claim 1, it is characterised in that the lower end of first body is formed with Lower push stopping part, the lower push stopping part and the bearing of the compressor stop to.

6. the bent axle for compressor according to claim 1, it is characterised in that shape on the internal perisporium of second body Into fluted, a part for first body is contained in the groove.

7. the bent axle for compressor according to claim 1, it is characterised in that the external diameter of the eccentric segment is less than described The external diameter of the remainder of the first body.

8. the bent axle for compressor according to claim 1, it is characterised in that first body and the described second pipe Connected by soldering connection or Laser Welding between body.

9. a kind of bent axle for compressor, the compressor includes rotor and multiple pistons, it is characterised in that the bent axle bag Include：

First body, first body is suitable to be located in the rotor hole of the rotor with by rotor driving rotation, described Axially spaced-apart is provided with multiple eccentric segments on first body, its remaining part of the first body described in the center axis deviation of the eccentric segment The central axis for dividing；

Multiple second bodys, the internal diameter of second body is more than the external diameter of first body and the length of second body Less than the length of first body, multiple second bodys are outer one by one to be enclosed within multiple eccentric segments, positioned at the top The upper end of second body be formed with the upper push stopping part for raising up, the central axis of second body with it is described The center axis deviation of the first body, multiple pistons are suitable to outer one by one being enclosed within the periphery wall of multiple second bodys.

10. the bent axle for compressor according to claim 9, it is characterised in that positioned at second pipe of bottom The lower end of body is formed with downwardly convex lower push stopping part.

A kind of 11. compressors, it is characterised in that including：

The bent axle for compressor according to any one of claim 1-10；

Piston and rotor, are enclosed within first body to drive first body to rotate, outside the piston outside the rotor It is enclosed within second body.