CN203500011U - Crankshaft component for rotary compressor - Google Patents

Crankshaft component for rotary compressor Download PDF

Info

Publication number
CN203500011U
CN203500011U CN201320465389.8U CN201320465389U CN203500011U CN 203500011 U CN203500011 U CN 203500011U CN 201320465389 U CN201320465389 U CN 201320465389U CN 203500011 U CN203500011 U CN 203500011U
Authority
CN
China
Prior art keywords
principal axis
bent axle
crankshaft
axis balance
balance piece
Prior art date
Application number
CN201320465389.8U
Other languages
Chinese (zh)
Inventor
吴延平
Original Assignee
广东美芝制冷设备有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 广东美芝制冷设备有限公司 filed Critical 广东美芝制冷设备有限公司
Priority to CN201320465389.8U priority Critical patent/CN203500011U/en
Application granted granted Critical
Publication of CN203500011U publication Critical patent/CN203500011U/en

Links

Abstract

The utility model discloses a crankshaft component for a rotary compressor. The crankshaft component comprises a crankshaft and a main shaft balance block, wherein an eccentric part is arranged on the lower part of the crankshaft; the main shaft balance block is connected to the crankshaft by a bolt or a pin and is positioned above the eccentric part. According to the crankshaft component for the rotary compressor disclosed by the utility model, centrifugal force when the eccentric part and a piston sleeved outside the eccentric part are rotated can be balanced effectively by connecting the main shaft balance block to the crankshaft by the bolt or the pin, so that the friction loss and the vibration of the crankshaft are reduced, and the efficiency of the rotary compressor is improved; moreover, the main shaft balance block can be detached and a new main shaft balance block can be installed when the main shaft balance block is damaged without replacing the overall crankshaft component, so that the cost is saved.

Description

Crankshaft group for rotary compressor

Technical field

The utility model relates to art of refrigeration units, especially relates to a kind of crankshaft group for rotary compressor.

Background technique

Traditional single cylinder rotary compressor is owing to having eccentric part, therefore in bent axle rotation process, eccentric part and the piston that is set in eccentric part outside have larger centrifugal force when rotating, while is due to the effect that perturbs of the middle bent axle that runs up, thereby can aggravate abrasion and the vibration of bent axle, cause compressor work Efficiency Decreasing.

Model utility content

The utility model is intended at least solve one of technical problem existing in prior art.The crankshaft group for rotary compressor of offset when for this reason, an object of the present utility model is to propose a kind of compressor operating of balanced rotary better and reduction wearing and tearing.

The crankshaft group for rotary compressor of offset when another object of the present utility model is to propose a kind of compressor operating of balanced rotary better and reduction wearing and tearing.

The crankshaft group for rotary compressor of offset when another object of the present utility model is to propose a kind of compressor operating of balanced rotary better and reduction wearing and tearing.

The crankshaft group for rotary compressor according to the utility model first aspect embodiment, comprising: bent axle, and the bottom of described bent axle is provided with eccentric part; With principal axis balance piece, described principal axis balance piece screw or pin are connected to described bent axle and are positioned at the top of described eccentric part.

According to the utility model embodiment's the crankshaft group for rotary compressor, by principal axis balance piece screw or pin are connected to bent axle, balance eccentric part and the piston that the is set in eccentric part outside centrifugal force when rotating effectively, thereby reduce frictional loss and the vibration of bent axle, improved the efficiency of rotary compressor, and when principal axis balance piece damages, principal axis balance piece can be pulled down, change new principal axis balance piece, and needn't change whole crankshaft group, saved cost.

In addition, according to the crankshaft group for rotary compressor of the present utility model, also can there is following additional technical feature:

According to an embodiment of the present utility model, on described principal axis balance piece, be formed with the first mounting hole that radially runs through it along described bent axle, on described bent axle, be formed with the second mounting hole radially inwardly concaving, described the second mounting hole is corresponding to described the first mounting hole described principal axis balance piece is connected to described bent axle by screw or pin.Thus, by the first mounting hole and the second mounting hole are set, thereby principal axis balance piece and bent axle can be coupled together securely.

Further, on described principal axis balance piece, be formed with anti-porosity, described anti-porosity communicates with described the first mounting hole, and the first screw only supports described screw or the described pin in described the first mounting hole through described anti-porosity.Thus, by anti-porosity is set, can effectively prevents that the situation that rollback gets loose from appearring in the screw or the pin that connect principal axis balance piece and bent axle, thereby improve the reliability that principal axis balance piece is connected with bent axle.

Alternatively, described the first mounting hole and described the second mounting hole are respectively a plurality of, and described a plurality of the first mounting hole and described a plurality of the second mounting hole are corresponding one by one.Thus, by a plurality of the first mounting holes and a plurality of the second mounting hole are set, principal axis balance piece and bent axle can further link together securely.

Further, the density of described principal axis balance block of material is more than or equal to the density of described crankshaft material.

The crankshaft group for rotary compressor according to the utility model second aspect embodiment, comprising: bent axle, and the bottom of described bent axle is provided with eccentric part; With principal axis balance piece, described principal axis balance piece key is connected to described bent axle and is positioned at the top of described eccentric part.

According to the utility model embodiment's the crankshaft group for rotary compressor, by principal axis balance piece key is connected to bent axle, balance eccentric part and the piston that the is set in eccentric part outside centrifugal force when rotating effectively, thereby reduce frictional loss and the vibration of bent axle, improved the efficiency of rotary compressor, and when principal axis balance piece damages, principal axis balance piece can be pulled down, change new principal axis balance piece, and needn't change whole crankshaft group, saved cost.

Particularly, be formed with axially extended the first keyway along described bent axle on described principal axis balance piece, be formed with the second keyway on described bent axle, described the second keyway coordinates, by key, described principal axis balance piece is connected to described bent axle with described the first keyway.Thus, processing is simple and cost is low.

Alternatively, the density of described principal axis balance block of material is more than or equal to the density of described crankshaft material.

The crankshaft group for rotary compressor according to the utility model third aspect embodiment, comprising: bent axle, and the bottom of described bent axle is provided with eccentric part; With principal axis balance piece, described principal axis balance piece and described bent axle are connected by hot jacket or the mode of colding pressing, and described principal axis balance piece is positioned at the top of described eccentric part.

According to the utility model embodiment's the crankshaft group for rotary compressor, by principal axis balance piece is connected to bent axle by hot jacket or the mode of colding pressing, balance eccentric part and the piston that the is set in eccentric part outside centrifugal force when rotating effectively, thereby reduce frictional loss and the vibration of bent axle, improved the efficiency of rotary compressor, and prevented that it from occurring situation about coming off in operation process.In addition, when principal axis balance piece damages, principal axis balance piece can be pulled down, change new principal axis balance piece, and needn't change whole crankshaft group, save cost.

Alternatively, the density of described principal axis balance block of material is more than or equal to the density of described crankshaft material.

Additional aspect of the present utility model and advantage in the following description part provide, and part will become obviously from the following description, or recognize by practice of the present utility model.

Accompanying drawing explanation

Above-mentioned and/or additional aspect of the present utility model and advantage accompanying drawing below combination obviously and is easily understood becoming embodiment's description, wherein:

Fig. 1 is according to the schematic diagram of an embodiment's of the utility model rotary compressor;

Fig. 2 is according to the schematic diagram of an embodiment's of the utility model the crankshaft group for rotary compressor;

Fig. 3 is the left view of the crankshaft group shown in Fig. 2;

Fig. 4 is the schematic diagram of the principal axis balance piece shown in Fig. 3;

Fig. 5 is according to the schematic diagram of an embodiment's of the utility model principal axis balance piece;

Fig. 6 is according to another schematic diagram of an embodiment's of the utility model principal axis balance piece;

Fig. 7 is according to the schematic diagram of another embodiment's of the utility model the crankshaft group for rotary compressor.

Description of reference numerals:

100: crankshaft group;

1: bent axle; 11: eccentric part;

2: principal axis balance piece; 21: the first mounting holes; 22: anti-porosity;

23: the first keyways; 24: thrust surface; 3: key;

200: rotary compressor;

201: housing; 202: upper bearing (metal); 203: cylinder; 2031: slide plate; 2032: piston;

204: lower bearing; 211: stator; 212: rotor.

Embodiment

Describe embodiment of the present utility model below in detail, described embodiment's example is shown in the drawings, and wherein same or similar label represents same or similar element or has the element of identical or similar functions from start to finish.Below by the embodiment who is described with reference to the drawings, be exemplary, only for explaining the utility model, and can not be interpreted as restriction of the present utility model.

In description of the present utility model, it will be appreciated that, term " " center ", " laterally ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of indications such as " outward " are based on orientation shown in the drawings or position relationship, only the utility model and simplified characterization for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second " be only for describing object, and can not be interpreted as indication or hint relative importance or the implicit quantity that indicates indicated technical characteristics.Thus, one or more these features can be expressed or impliedly be comprised to the feature that is limited with " first ", " second ".In description of the present utility model, except as otherwise noted, the implication of " a plurality of " is two or more.

In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and can be also to removably connect, or connect integratedly; Can be to be directly connected, also can indirectly be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.

Below with reference to Fig. 1-Fig. 7, describe according to the utility model embodiment's the crankshaft group 100 for rotary compressor 200, this crankshaft group 100 can be used in single cylinder rotary compressor.In description below the application, the crankshaft group 100 of take describes as example for single cylinder rotary compressor.Certainly, those skilled in the art are appreciated that, this crankshaft group 100 only describes as example for single cylinder rotary compressor, and be not limited to this, that is to say, according to crankshaft group 100 of the present utility model, also can be used in other rotary compressor 200, and be not limited to single cylinder rotary compressor.

As shown in Fig. 1-Fig. 4 and Fig. 6, the crankshaft group 100 for rotary compressor 200 according to the utility model first aspect embodiment, comprising: bent axle 1 and principal axis balance piece 2, the bottom of bent axle 1 is provided with eccentric part 11.Principal axis balance piece 2 screws or pin are connected to bent axle 1, and principal axis balance piece 2 is positioned at the top of eccentric part 11.

With reference to Fig. 1, rotary compressor 200 for example single cylinder rotary compressor comprises housing 201, compression assembly and driver.In housing 201, limit holding space, compression assembly and driver are all located in holding space, and compression assembly is positioned at the below of driver.

Further, as shown in Figure 1, compression assembly comprises cylinder 203, upper bearing (metal) 202, lower bearing 204 and piston 3032.Cylinder 203 forms all unlimited cylindrical shapes of top and bottom, is formed with intakeport and relief opening, and is formed with the vane slot radially extending along it on cylinder 203 on cylinder 203.Upper bearing (metal) 202 and lower bearing 204 are located at respectively the top of cylinder 203 and bottom jointly to limit compression chamber with cylinder 203.The inwall that piston 3032 is located at Nei Qieyan compression chamber of compression chamber prejudicially can roll.Slide plate 2031 is located in vane slot movably by spring, and one end of slide plate 2031 extend in compression chamber and only supports piston 3032.Bent axle 1 is rotated by driver drives, and the eccentric part 11 of the bottom of bent axle 1 extend in compression chamber to drive piston 3032 to roll along the inwall of compression chamber through upper bearing (metal) 202.Alternatively, driver is motor, and motor mainly comprises stator 211 and rotor 212.When rotary compressor 200 single cylinder rotary compressor when work for example, driver drives bent axle 1 rotates, and is enclosed within piston 3032 on bent axle 1 along with bent axle 1 is made eccentric rotary together.

In the example of Fig. 1, on the lower surface of upper bearing (metal) 202, be formed with to the groove being recessed on, between upper bearing (metal) 202 and cylinder 203, be provided with dividing plate, between dividing plate and upper bearing (metal) 202, jointly limit counter balance pocket, principal axis balance piece 2 is located on bent axle 1 and is positioned at counter balance pocket, now principal axis balance piece 2 is positioned at the top of eccentric part 11, principal axis balance piece 2 and eccentric part 11 each interval on above-below direction are arranged, when rotary compressor 200 operation, principal axis balance piece 2 can rotate along with the rotation of bent axle 1, offset when thereby balanced rotary compressor 200 moves better, improve the wearing and tearing of bent axle 1.It will be appreciated that, the distance being spaced apart from each other between principal axis balance piece 2 and eccentric part 11 can be according to actual requirement setting, to meet better actual requirement.

Principal axis balance piece 2 is set on bent axle 1, that is to say, principal axis balance piece 2 and bent axle 1 are respectively two separate parts, and independent manufacturing respectively.Particularly, be formed with the trepanning that runs through it on principal axis balance piece 2, bent axle 1 can pass this trepanning, thereby principal axis balance piece 2 is enclosed within on bent axle 1.Alternatively, principal axis balance piece 2 screws or pin are connected to bent axle 1.In other words, the mode that principal axis balance piece 2 can be connected by screw is connected with bent axle 1, or the mode connecting by pin is connected with bent axle 1.

According to the utility model embodiment's the crankshaft group 100 for rotary compressor 200, by principal axis balance piece 2 screws or pin are connected to bent axle 1, balance eccentric part 11 and the piston 3032 that the is set in eccentric part 11 outsides centrifugal force when rotating effectively, thereby reduce frictional loss and the vibration of bent axle 1, improved the efficiency of rotary compressor 200, and when principal axis balance piece 2 damages, principal axis balance piece 2 can be pulled down, change new principal axis balance piece 2, and needn't change whole crankshaft group 100, saved cost.

Particularly, on principal axis balance piece 2, be formed with the first mounting hole 21 that radially runs through it along bent axle 1, on bent axle 1, be formed with the second mounting hole radially inwardly concaving, the second mounting hole is corresponding to the first mounting hole 21 principal axis balance piece 2 is connected to bent axle 1 by screw or pin.As shown in Fig. 2-Fig. 4, the first mounting hole 21 radially runs through principal axis balance piece 2 along bent axle 1, on bent axle 1, the position of corresponding the first mounting hole 21 is formed with the second mounting hole, the second mounting hole is radially recessed towards the center of bent axle 1 along it from the periphery wall of bent axle 1, screw or pin can pass the first mounting hole 21, the second mounting hole successively, thereby principal axis balance piece 2 and bent axle 1 are linked into an integrated entity securely.

In an optional embodiment of the present utility model, the first mounting hole 21 and the second mounting hole are respectively a plurality of, and a plurality of the first mounting hole 21 and a plurality of the second mounting hole are corresponding one by one.In other words, a plurality of the first mounting holes 21 are spaced apart from each other and are formed on principal axis balance piece 2, what a plurality of the second mounting holes were spaced apart from each other is formed on bent axle 1, the quantity of the first mounting hole 21 and the second mounting hole is identical and corresponding one by one respectively, thereby screw or pin can pass the first mounting hole 21, second mounting hole corresponding with the first mounting hole 21 successively, thereby principal axis balance piece 2 and bent axle 1 are further linked together securely.It will be appreciated that, the quantity of the first mounting hole 21 and the second mounting hole can be according to actual requirement setting, to meet better actual requirement.

Further, be formed with anti-porosity 22 on principal axis balance piece 2, anti-porosity 22 communicates with the first mounting hole 21, and the first screw only supports screw or the pin in the first mounting hole 21 through anti-porosity 22.For example, in the example of Fig. 2 and Fig. 4, anti-porosity 22 is recessed downwards from the upper-end surface of principal axis balance piece 2, and anti-porosity 22 is communicated with the first mounting hole 21, such the first screw can be inconsistent through screw or pin in anti-porosity 22 and the first mounting hole 21, thereby the screw or the pin that connect principal axis balance piece 2 and bent axle 1 can not get loose by rollback, and then have improved the reliability that principal axis balance piece 2 is connected with bent axle 1.In other examples of the present utility model, anti-porosity 22 also can be from the lower end surface of principal axis balance piece 2 to being recessed on (scheming not shown).It will be appreciated that, on principal axis balance piece 2, also can be formed with a plurality of anti-porosities 22, the quantity of a plurality of anti-porosities 22 can be less than or equal to the quantity of the first mounting hole 21, and the quantity of anti-porosity 22 can be according to actual requirement setting, to meet better actual requirement.

In an embodiment of the present utility model, the density of principal axis balance piece 2 materials is more than or equal to the density of bent axle 1 material.That is to say, the density of principal axis balance piece 2 materials is greater than the density of bent axle 1 material, or equals the density of bent axle 1 material.In one of them example of the present utility model, the material that principal axis balance piece 2 adopts can be identical with the material that bent axle 1 adopts, for example, all adopt foundry goods manufacture to form, thereby can save the cost of rotary compressor 200.Certainly, the utility model is not limited to this, in other examples of the present utility model, the material that principal axis balance piece 2 adopts also can be different with the material that bent axle 1 adopts, for example principal axis balance piece 2 adopts heavy alloy material, like this can be by the size design of principal axis balance piece 2 less, when principal axis balance piece 2 integral body are more near after compression chamber, can further promote vibration and the unfailing performance of rotary compressor 200.

As shown in Figure 7, the crankshaft group 100 for rotary compressor 200 according to the utility model second aspect embodiment, comprising: bent axle 1 and principal axis balance piece 2, the bottom of bent axle 1 is provided with eccentric part 11.Principal axis balance piece 2 keys are connected to bent axle 1, and principal axis balance piece 2 is positioned at the top of eccentric part 11.For example principal axis balance piece 2 can be connected to bent axle 1 by flat key 3, as shown in Figure 7.

According to the utility model embodiment's the crankshaft group 100 for rotary compressor 200, by principal axis balance piece 2 keys are connected to bent axle 1, balance eccentric part 11 and the piston 3032 that the is set in eccentric part 11 outsides centrifugal force when rotating effectively, thereby reduce frictional loss and the vibration of bent axle 1, improved the efficiency of rotary compressor 200, and when principal axis balance piece 2 damages, principal axis balance piece 2 can be pulled down, change new principal axis balance piece 2, and needn't change whole crankshaft group 100, saved cost.

Particularly, be formed with axially extended the first keyway 23 along bent axle 1 on principal axis balance piece 2, be formed with the second keyway on bent axle 1, the second keyway coordinates, by key 3, principal axis balance piece 2 is connected to bent axle 1 with the first keyway 23.For example, in the example of Fig. 7, the first keyway 23 extends along the vertical direction, the second keyway is radially recessed towards the center of bent axle 1 along it from the periphery wall of bent axle 1, after principal axis balance piece 2 and bent axle 1 cooperation put in place, key 3 for example flat key can partly be contained in the second keyway, and another part of flat key is contained in the first keyway 23, when rotating, bent axle 1 can drive like this principal axis balance piece 2 to rotate.In other examples of the present utility model, on principal axis balance piece 2, also can be formed with a plurality of the first keyways 23, on bent axle 1, be formed with a plurality of the second keyways, a plurality of the second keyways and a plurality of the first keyways 23 are corresponding (scheming not shown) one by one.

The crankshaft group 100 for rotary compressor 200 according to the utility model third aspect embodiment, comprising: bent axle 1 and principal axis balance piece 2, the bottom of bent axle 1 is provided with eccentric part 11.Principal axis balance piece 2 and bent axle 1 are connected by hot jacket or the mode of colding pressing, and principal axis balance piece 2 is positioned at the top of eccentric part 11.

In one of them example of the present utility model, principal axis balance piece 2 hot jackets are on bent axle 1, particularly, principal axis balance piece 2 is heated to uniform temperature to be produced after deformation, this principal axis balance piece 2 is set on bent axle 1, after principal axis balance piece 2 is cooling, principal axis balance piece 2 links into an integrated entity with bent axle 1, thereby effectively principal axis balance piece 2 is arranged on bent axle 1 and prevents that it from occurring situation about coming off in operation process.In other examples of the present utility model, principal axis balance piece 2 also can be colded pressing on bent axle 1, particularly, to after principal axis balance piece 2 direct weightings, itself and bent axle 1 being linked into an integrated entity, thereby effectively principal axis balance piece 2 be arranged on bent axle 1 and prevent that it from occurring situation about coming off in operation process.

According to the utility model embodiment's the crankshaft group 100 for rotary compressor 200, by principal axis balance piece 2 is connected to bent axle 1 by hot jacket or the mode of colding pressing, balance eccentric part 11 and the piston 3032 that the is set in eccentric part 11 outsides centrifugal force when rotating effectively, thereby reduce frictional loss and the vibration of bent axle 1, improved the efficiency of rotary compressor 200, and prevented that it from occurring situation about coming off in operation process.In addition, when principal axis balance piece 2 damages, principal axis balance piece 2 can be pulled down, change new principal axis balance piece 2, and needn't change whole crankshaft group 100, save cost.

In an embodiment of the present utility model, the density of principal axis balance piece 2 materials is more than or equal to the density of bent axle 1 material.That is to say, the density of principal axis balance piece 2 materials is greater than the density of bent axle 1 material, or equals the density of bent axle 1 material.

In one of them example of the present utility model, the material that principal axis balance piece 2 adopts can be identical with the material that bent axle 1 adopts, for example, all adopt foundry goods manufacture to form, thereby can save the cost of rotary compressor 200.Certainly, the utility model is not limited to this, in other examples of the present utility model, the material that principal axis balance piece 2 adopts also can be different with the material that bent axle 1 adopts, for example principal axis balance piece 2 adopts heavy alloy material, like this can be by the size design of principal axis balance piece 2 less, when principal axis balance piece 2 integral body are more near after compression chamber, can further promote vibration and the unfailing performance of rotary compressor 200.

Further, with reference to Fig. 5, the lower end surface of principal axis balance piece 2 can be machined for the thrust surface 24 of carrying, and bent axle 1 can be supported on dividing plate by principal axis balance piece 2 like this.It should be noted that the perpendicularity and the status requirement that need when mounted special concern principal axis balance piece 2 and bent axle 1, because this fitted position can have a strong impact on performance and the reliability of rotary compressor 200.Certainly, the utility model is not limited to this, also can be formed on the lower surface of the eccentric part 11 of bent axle 1 for the thrust surface 24 carrying, and bent axle 1 can be supported on the upper-end surface of lower bearing 204 by eccentric part 11 like this, can greatly reduce the installation precision of principal axis balance piece 2 like this, reduce installation cost.

According to the utility model embodiment's rotary compressor 200, comprise the crankshaft group 100 for rotary compressor 200 according to the above-mentioned first aspect of the utility model, second aspect or third aspect embodiment.

According to the utility model embodiment's rotary compressor 200, by the crankshaft group 100 of above-described embodiment is set, be convenient for changing principal axis balance piece 2, and reduced the replacement cost of crankshaft group 100, thereby improved the performance of rotary compressor 200, and reduced cost.

According to other formations of the utility model embodiment's rotary compressor 200 and operation, be all known to those skilled in the art, be not described in detail here.

In the description of this specification, the description of reference term " embodiment ", " some embodiments ", " illustrative examples ", " example ", " concrete example " or " some examples " etc. means to be contained at least one embodiment of the present utility model or example in conjunction with specific features, structure, material or the feature of this embodiment or example description.In this manual, the schematic statement of above-mentioned term is not necessarily referred to identical embodiment or example.And the specific features of description, structure, material or feature can be with suitable mode combinations in any one or more embodiments or example.

Although illustrated and described embodiment of the present utility model, those having ordinary skill in the art will appreciate that: in the situation that not departing from principle of the present utility model and aim, can carry out multiple variation, modification, replacement and modification to these embodiments, scope of the present utility model is limited by claim and equivalent thereof.

Claims (10)

1. for a crankshaft group for rotary compressor, it is characterized in that, comprising:
Bent axle, the bottom of described bent axle is provided with eccentric part; With
Principal axis balance piece, described principal axis balance piece screw or pin are connected to described bent axle and are positioned at the top of described eccentric part.
2. the crankshaft group for rotary compressor according to claim 1, it is characterized in that, on described principal axis balance piece, be formed with the first mounting hole that radially runs through it along described bent axle, on described bent axle, be formed with the second mounting hole radially inwardly concaving, described the second mounting hole is corresponding to described the first mounting hole described principal axis balance piece is connected to described bent axle by screw or pin.
3. the crankshaft group for rotary compressor according to claim 2, it is characterized in that, on described principal axis balance piece, be formed with anti-porosity, described anti-porosity communicates with described the first mounting hole, and the first screw only supports described screw or the described pin in described the first mounting hole through described anti-porosity.
4. the crankshaft group for rotary compressor according to claim 2, is characterized in that, described the first mounting hole and described the second mounting hole are respectively a plurality of, and described a plurality of the first mounting hole and described a plurality of the second mounting hole are corresponding one by one.
5. according to the crankshaft group for rotary compressor described in any one in claim 1-4, it is characterized in that, the density of described principal axis balance block of material is more than or equal to the density of described crankshaft material.
6. for a crankshaft group for rotary compressor, it is characterized in that, comprising:
Bent axle, the bottom of described bent axle is provided with eccentric part; With
Principal axis balance piece, described principal axis balance piece key is connected to described bent axle and is positioned at the top of described eccentric part.
7. the crankshaft group for rotary compressor according to claim 6, it is characterized in that, on described principal axis balance piece, be formed with axially extended the first keyway along described bent axle, on described bent axle, be formed with the second keyway, described the second keyway coordinates, by key, described principal axis balance piece is connected to described bent axle with described the first keyway.
8. according to the crankshaft group for rotary compressor described in claim 6 or 7, it is characterized in that, the density of described principal axis balance block of material is more than or equal to the density of described crankshaft material.
9. for a crankshaft group for rotary compressor, it is characterized in that, comprising:
Bent axle, the bottom of described bent axle is provided with eccentric part; With
Principal axis balance piece, described principal axis balance piece and described bent axle are connected by hot jacket or the mode of colding pressing, and described principal axis balance piece is positioned at the top of described eccentric part.
10. the crankshaft group for rotary compressor according to claim 9, is characterized in that, the density of described principal axis balance block of material is more than or equal to the density of described crankshaft material.
CN201320465389.8U 2013-07-31 2013-07-31 Crankshaft component for rotary compressor CN203500011U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320465389.8U CN203500011U (en) 2013-07-31 2013-07-31 Crankshaft component for rotary compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320465389.8U CN203500011U (en) 2013-07-31 2013-07-31 Crankshaft component for rotary compressor

Publications (1)

Publication Number Publication Date
CN203500011U true CN203500011U (en) 2014-03-26

Family

ID=50330995

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320465389.8U CN203500011U (en) 2013-07-31 2013-07-31 Crankshaft component for rotary compressor

Country Status (1)

Country Link
CN (1) CN203500011U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104141609A (en) * 2014-08-11 2014-11-12 珠海凌达压缩机有限公司 Crankshaft and compressor with crankshaft
CN105221428A (en) * 2014-06-30 2016-01-06 珠海凌达压缩机有限公司 A kind of rotary compressor and crank assemblby thereof
CN108223551A (en) * 2016-12-22 2018-06-29 上海汽车集团股份有限公司 Engine and combinations thereof formula balance shaft

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105221428A (en) * 2014-06-30 2016-01-06 珠海凌达压缩机有限公司 A kind of rotary compressor and crank assemblby thereof
CN104141609A (en) * 2014-08-11 2014-11-12 珠海凌达压缩机有限公司 Crankshaft and compressor with crankshaft
CN108223551A (en) * 2016-12-22 2018-06-29 上海汽车集团股份有限公司 Engine and combinations thereof formula balance shaft
CN108223551B (en) * 2016-12-22 2020-08-18 上海汽车集团股份有限公司 Engine and combined balance shaft thereof

Similar Documents

Publication Publication Date Title
CN203067204U (en) Swashplate type plunger pump and swashplate type plunger motor
CN104734403A (en) Motor of ceiling fan
RU2564473C1 (en) Scroll compressor
CN205345333U (en) Fast dismouting oar seat device of many rotor crafts
CN102366900B (en) Rotary clamp for lathe
CN202833164U (en) Rotary-type compressor and cylinder body component thereof
CN101440803B (en) Variable displacement pump
CN203962320U (en) External rotor rotary compressor
CN102828973B (en) Air compressor directly driven by permanent magnet synchronous magnetic suspension high-speed motor
CN201162705Y (en) Magnetic transmission petroleum chemical flow-process pump
CN105317678A (en) External rotor rotary compressor
CN204140422U (en) Rotary compressor
CN104976123A (en) Multi-cylinder rotary compressor
CN203962324U (en) The compressor with external rotor electric machine
CN105889074B (en) Rotary compressor
CN106100230A (en) Light-weight electric bicycle wheel hub motor
CN103511258A (en) Rotary compressor and crank shaft piston assembly thereof
US20130039795A1 (en) Shaft rotating double-stator multi-speed motor with curves of constant width
CN202370848U (en) Rolling rotor compressor
CN203784196U (en) Multifunctional wheel type drag chain
CN203722350U (en) Motor for compressor and compressor with motor
CN103486001A (en) Drive device
CN201862709U (en) Mould used on steel bar bender and capable of adjusting bending radius of steel bar
CN105114287A (en) Reciprocating compressor and piston connecting rod mechanism of same
CN102162454A (en) Oil-gas separated-type balancing block

Legal Events

Date Code Title Description
GR01 Patent grant