CN206397736U - Screw compressor and air conditioner - Google Patents

Abstract

The utility model discloses a kind of screw compressor and air conditioner, the screw compressor includes eccentric shaft assembly and the motor stator on eccentric shaft assembly, rotor, fixed scroll and orbiter, eccentric shaft assembly includes main shaft and eccentric shaft, eccentric shaft is provided with the first balance weight close to one end of main shaft, the one end of main shaft away from eccentric shaft is provided with the second balance weight, first balance weight is provided with the first mounting hole, the cross section of first mounting hole is the first non-circular geometric face, second balance weight is provided with the second mounting hole, the cross section of second mounting hole is the second non-circular geometric face, the cross section of eccentric shaft matches with the first non-circular geometric face, first balance weight is fitted on eccentric shaft by the first mounting hole interference set, the cross section of main shaft matches with the second non-circular geometric face, back-up ring is provided between rotor and the second balance weight.Two balance weight positioning precisions are high in the utility model, install positioning conveniently, are difficult to rock, assembly precision is high.

Description

Screw compressor and air conditioner

Technical field

The utility model is related to air conditioner technical field, more particularly to a kind of screw compressor and air conditioner.

Background technology

Screw compressor extensive use in air conditioner, is such compression in the air-conditioning system of new-energy automobile in fact Machine motor assembly is directly installed on main shaft, and rotor driving eccentric main axis motion makes the orbiting and fixed scroll form multipair compression Chamber, so as to realize the compression to medium.

Because the presence of spindle eccentricity is, it is necessary in two different Plane Installations of main shaft balance weight of different sizes, letter Claim size balance block, its setting angle or axial location have error to cause the vibration of complete machine, so that noise is produced, while size The reasonability that balance weight is installed will influence the economy and assembly cost of mounting process again, therefore it is inclined to solve electric scroll compressor The positioning of size balance block and assembly technology are particularly important on heart main shaft.

Utility model content

The utility model is intended at least solve one of technical problem present in prior art.Therefore, of the present utility model Purpose is to propose a kind of screw compressor, positioning and the assembly precision of size balance block is solved the problems, such as, so as to ensure compressor Mechanical performance.

According to the screw compressor of the utility model embodiment, including eccentric shaft assembly and installed in the eccentric shaft assembly On motor stator, rotor, fixed scroll and orbiter, the eccentric shaft assembly include main shaft and eccentric shaft, it is described Eccentric shaft is provided with the first balance weight close to one end of the main shaft, and the one end of the main shaft away from the eccentric shaft is flat provided with second Weigh block, and first balance weight is provided with the first mounting hole, and the cross section of first mounting hole is the first non-circular geometric face, described Second balance weight is provided with the second mounting hole, and the cross section of second mounting hole is the second non-circular geometric face, the eccentric shaft Cross section matches with first non-circular geometric face, and first balance weight is fitted over described by the first mounting hole interference set On eccentric shaft, the cross section of the main shaft matches with second non-circular geometric face, the rotor and the described second balance Back-up ring is provided between block.

According to the screw compressor of the utility model embodiment, the first balance weight fits over institute by the first mounting hole interference set State on eccentric shaft, the second balance weight is positioned by back-up ring, positioning precision is high, further, since the first balance weight is installed by first Hole is arranged on eccentric shaft, and the second balance weight is arranged on main shaft by the second mounting hole, and two mounting holes are all non-circular Face, therefore damascene structures are formd, positioning is installed conveniently, is difficult to rock, assembly precision is high.

In addition, according to the screw compressor of the utility model above-described embodiment, can also have technology additional as follows special Levy：

Further, in one embodiment of the present utility model, first non-circular geometric face at least includes first level Portion and the first curved portions being connected with the first level portion.

Further, in one embodiment of the present utility model, second non-circular geometric face at least includes the second level Portion and the second curved portions being connected with second horizontal part.

Further, in one embodiment of the present utility model, first balance weight includes installing with described first First load-supporting part of hole connection, first load-supporting part is in sector.

Further, in one embodiment of the present utility model, first load-supporting part and first mounting hole It is integrally formed.

Further, in one embodiment of the present utility model, second balance weight includes installing with described second Second load-supporting part of hole connection, second load-supporting part is in sector.

Further, in one embodiment of the present utility model, second load-supporting part and first mounting hole It is integrally formed.

Further, in one embodiment of the present utility model, first balance weight is solid by the first holding screw It is scheduled on the eccentric shaft.

Further, in one embodiment of the present utility model, second balance weight is solid by the second holding screw It is scheduled on the main shaft.

Another purpose of the present utility model is to propose a kind of air conditioner using above-mentioned screw compressor, with positioning It is high with assembly precision, the characteristics of good mechanical property.

Additional aspect and advantage of the present utility model will be set forth in part in the description, partly by from following description In become obvious, or by it is of the present utility model practice recognize.

Brief description of the drawings

Of the present utility model above-mentioned and/or additional aspect and advantage will from description of the accompanying drawings below to embodiment is combined Become substantially and be readily appreciated that, wherein：

Fig. 1 is the cross section structure diagram of the screw compressor according to the embodiment of the utility model one；

Fig. 2 is the cross section structure schematic diagram of the balance weights of Fig. 1 first；

Fig. 3 is the cross section structure schematic diagram of the balance weights of Fig. 1 second.

Embodiment

To enable the purpose of this utility model, feature and advantage more obvious understandable, below in conjunction with the accompanying drawings to this practicality New embodiment is described in detail.Some embodiments of the present utility model are given in accompanying drawing.But, this practicality It is new to realize in many different forms, however it is not limited to embodiment described herein.On the contrary, providing these implementations The purpose of example be make to disclosure of the present utility model more it is thorough comprehensively.

It should be noted that when element is referred to as " being fixedly arranged on " another element, it can be directly on another element Or can also have element placed in the middle.When an element is considered as " connection " another element, it can be directly connected to To another element or it may be simultaneously present centering elements.Term as used herein " vertical ", " level ", " left side ", " right side ", " on ", " under " and similar statement for illustrative purposes only, rather than indicate or implied signified device or member Part must have specific orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.

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 being fixedly connected or being detachably connected, or be integrally connected；Can To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi The connection of two element internals.For the ordinary skill in the art, above-mentioned term can be understood as the case may be Concrete meaning in the utility model.Term as used herein " and/or " include one or more related Listed Items Arbitrary and all combination.

The crankshaft group 10 according to the utility model first aspect embodiment is described in detail below with reference to Fig. 1-Fig. 3, in order to It is easy to explanation, has only shown the part related to the embodiment of the present invention.

Referring to Fig. 1, the screw compressor 10 includes eccentric shaft assembly 101 and on the eccentric shaft assembly 101 Motor stator 102, rotor 103, fixed scroll 104 and orbiter 105.

The eccentric shaft assembly 101 includes main shaft 1011 and eccentric shaft 1012, and the eccentric shaft 1012 is close to the main shaft 1011 one end is provided with the first balance weight 106, and the one end of the main shaft 1011 away from the eccentric shaft 1012 is provided with the second balance The volume and weight of block 107, first balance weight 106 and second balance weight 107 can be adjusted according to actual needs It is whole.

Fig. 1, Fig. 2 and Fig. 3 are referred to, first balance weight 106 is provided with the first mounting hole 1061, and described first installs The cross section in hole 1061 is the first non-circular geometric face, and second balance weight 107 is provided with the second mounting hole 1071, second peace The cross section for filling hole 1071 is the second non-circular geometric face, the cross section of the eccentric shaft 1012 and the first non-circular geometric face phase Match somebody with somebody, first balance weight 106 is fitted on the eccentric shaft 1012 by the interference set of the first mounting hole 1061, the main shaft 1011 cross section matches with second non-circular geometric face, is set between the rotor 103 and second balance weight 107 There is back-up ring 108.

In the present embodiment, first balance weight 106 is fixed on the eccentric shaft 1012 by the first holding screw 109 On, second balance weight 107 is fixed on the main shaft 1011 by the second holding screw 110.

Referring to Fig. 2, first balance weight 106 includes the first load-supporting part being connected with first mounting hole 1061 1062, specifically, first load-supporting part 1062 is in sector, first load-supporting part 1062 and first mounting hole 1061 are integrally formed, to reduce manufacturing cost.

First non-circular geometric face at least includes a horizontal part and the curved portions being connected with the horizontal part.Specifically in this reality Apply in example, first non-circular geometric face includes first level portion 10611 and the first arc being connected with the first level portion 10611 Shape portion 10612.It should be understood that in other embodiments of the present utility model, the quantity in the first level portion 10611 may be used also Think two and two or more.

Referring to Fig. 3, second balance weight 107 includes the second load-supporting part being connected with second mounting hole 1071 1072, specifically, second load-supporting part 1072 is in sector, second load-supporting part 1072 and second mounting hole 1071 are integrally formed, to reduce manufacturing cost.

Second non-circular geometric face at least includes a horizontal part and the curved portions being connected with the horizontal part.Specifically in this reality Apply in example, second non-circular geometric face includes the second horizontal part 10711 and the second arc being connected with second horizontal part 10711 Shape portion 10712.It should be understood that in other embodiments of the present utility model, the quantity of second horizontal part 10711 may be used also Think two and two or more.

According to the screw compressor of the present embodiment, the first balance weight fits over the eccentric shaft by the first mounting hole interference set On, the second balance weight is positioned by back-up ring, and positioning precision is high, further, since the first balance weight is arranged on by the first mounting hole On eccentric shaft, the second balance weight is arranged on main shaft by the second mounting hole, and two mounting holes are all non-circular geometric faces, therefore shape Into damascene structures, positioning is installed conveniently, is difficult to rock, assembly precision is high.

The air conditioner of the utility model second aspect embodiment, including according to the whirlpool of the utility model first aspect embodiment Revolve compressor 10.It should be noted that the structure and its operation principle of air conditioner should be as it is known to those skilled in the art that here No longer it is described in detail.According to the air conditioner of the utility model embodiment, by setting according to the utility model first aspect embodiment Screw compressor 10, positioning is high with assembly precision, good mechanical property.

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 the 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 not necessarily referring to identical embodiment or example.Moreover, specific features, structure, material or the feature of description can be Combined in an appropriate manner in any one or more embodiments or example.

Embodiment described above only expresses several embodiments of the present utility model, and it describes more specific and detailed, But therefore it can not be interpreted as the limitation to the utility model the scope of the claims.It should be pointed out that for the common of this area For technical staff, without departing from the concept of the premise utility, various modifications and improvements can be made, these all belong to In protection domain of the present utility model.Therefore, the protection domain of the utility model patent should be determined by the appended claims.

Claims (10)

1. a kind of screw compressor, including eccentric shaft assembly and motor stator, motor on the eccentric shaft assembly turn Son, fixed scroll and orbiter, it is characterised in that the eccentric shaft assembly includes main shaft and eccentric shaft, the eccentric shaft is leaned on One end of the nearly main shaft is provided with the first balance weight, and the one end of the main shaft away from the eccentric shaft is provided with the second balance weight, institute The first balance weight is stated provided with the first mounting hole, the cross section of first mounting hole is the first non-circular geometric face, and described second is flat The block that weighs is provided with the second mounting hole, and the cross section of second mounting hole is the second non-circular geometric face, the cross section of the eccentric shaft Match with first non-circular geometric face, first balance weight fits over the eccentric shaft by the first mounting hole interference set On, the cross section of the main shaft matches with second non-circular geometric face, between the rotor and second balance weight Provided with back-up ring.

2. the screw compressor according to right wants 1, it is characterised in that first non-circular geometric face at least includes first level Portion and the first curved portions being connected with the first level portion.

3. the screw compressor according to right wants 1, it is characterised in that second non-circular geometric face at least includes the second level Portion and the second curved portions being connected with second horizontal part.

4. the screw compressor according to right wants 1, it is characterised in that first balance weight includes installing with described first First load-supporting part of hole connection, first load-supporting part is in sector.

5. the screw compressor according to right wants 4, it is characterised in that first load-supporting part and first mounting hole It is integrally formed.

6. the screw compressor according to right wants 1, it is characterised in that second balance weight includes installing with described second Second load-supporting part of hole connection, second load-supporting part is in sector.

7. the screw compressor according to right wants 6, it is characterised in that second load-supporting part and first mounting hole It is integrally formed.

8. the screw compressor according to right wants 1, it is characterised in that first balance weight is solid by the first holding screw It is scheduled on the eccentric shaft.

9. the screw compressor according to right wants 8, it is characterised in that second balance weight is solid by the second holding screw It is scheduled on the main shaft.

10. a kind of air conditioner, it is characterised in that including the screw compressor described in claim 1 to 9 any one.