CN202056056U - Balancing weight and compressor applying same - Google Patents
Balancing weight and compressor applying same Download PDFInfo
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- CN202056056U CN202056056U CN2011201249028U CN201120124902U CN202056056U CN 202056056 U CN202056056 U CN 202056056U CN 2011201249028 U CN2011201249028 U CN 2011201249028U CN 201120124902 U CN201120124902 U CN 201120124902U CN 202056056 U CN202056056 U CN 202056056U
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- equilibrium block
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Abstract
The utility model discloses a balancing weight and a compressor applying same. The balancing weight according to one embodiment of the utility model comprises a mounting hole and salients arranged on partial inner wall of the mounting hole; and the inner wall of the mounting hole is provided with at least an arc surface and at least a plane.
Description
Technical field
The utility model relates generally to equilibrium block.More specifically, the utility model relates to the equilibrium block and the compressor of using this equilibrium block in a kind of compressor.
Background technique
Compressor has many moving elements such as scroll compressor inside, for example vortex, rotor, axle or the like.The compressor centrifugal force (square) that eccentric part rotates when operation can cause the vibration of compressor, reacts the centrifugal force (square) of component usually with the notion of amount of unbalance, and it is the function of quality and mass distribution position.The effect of equilibrium block just provides the amount of unbalance that a reverse centrifugal force (square) balance eccentric part produces.
In compressor, during the design balance piece, not only to consider the weight and the geomery of equilibrium block, and rigging position that must the control equilibrium block, comprise axial position, radial position and circumferential angle.In addition, equilibrium block has the effect of assembly force in assembly process, in use is subjected to the effect of centrifugal force and start-stop moment of torsion, does not allow the location to move simultaneously, so equilibrium block also needs to possess enough intensity and fastening force.
Based on above-mentioned consideration, what the fixed position of equilibrium block and means of fixation were relatively more commonly used in the compressor has following two kinds.A kind of mode is that equilibrium block is fixed on the rotor, as shown in fig. 1, by the aluminium post 11 that stretches out on the rotor 13 equilibrium block 12 is riveted on the rotor 13.This mode is lower to the required precision of accessory size, and assembling is also than being easier to.But, because when being riveted on equilibrium block 12 on the rotor 13 by the aluminium post 11 that stretches out on the rotor 13, aluminium post 11 bears all working load, moment of torsion that moment of flexure that causes such as equilibrium block 12 centrifugal force and inertial force cause etc., because aluminium post 11 intensity are low, therefore there is the risk of fracture, can not bears big mass balance piece 12.
Another mode is that equilibrium block is fixed on the axle, as shown in Figure 2, equilibrium block 21 interference is assemblied on the axle 22, locatees and bear work loads by axle 22.In addition, Fig. 3 shows the schematic representation of the interference assembling of this mode.As shown in Figure 3, by whole section arc surface 31 interference and plane 32 interference the equilibrium block interference is assemblied on the axle.
As shown in Fig. 2 and 3, this means of fixation is more succinct, does not need the complicated parts feature, does not also need other fastening pieces, but will guarantee reliable and stable connection, and the fit dimension of part needs strict control.Because cost consideration, equilibrium block adopts the powder metallurgy extrusion process to make at present, and the tolerance of size of interference fit feature is about ± 0.1mm, and tolerance is bigger.Reliable in order to guarantee that interference connects, the magnitude of interference of design must be big, and therefore assembling back part internal stress is also bigger.
In addition, fit as shown in Figure 3, the arc surface 31 of equilibrium block and 32 whiles of plane and an axle interference, leading role when assembling can be played in plane 32, also can play the effect of circumferential rotation inhibiting, still, this dual interference mode is because the interference of the whole circle of equilibrium block, big magnitude of interference can cause big hoop tensile stress, thereby causes equilibrium block that the risk of drawing crack is arranged.And, because the dual interference on arc surface 31 and plane 32, belonged to constraint, it is uncertain to cause its stress to exist, arc surface 31 interference may appear but plane 32 does not contact or slightly the contact situation, thereby the rotation inhibiting function of forfeiture plane contact design has loosening risk behind the frequent start-stop.
Therefore, need a kind of novel equilibrium block of design, so that overcome the problems referred to above.
The model utility content
In view of the foregoing, the utility model proposes a kind of novel equilibrium block and the compressor of using this equilibrium block.
Particularly, according to an aspect of the present utility model, provide a kind of equilibrium block, having comprised: pilot hole, the inwall of described pilot hole have at least one cambered surface and at least one plane; And be arranged on projection on the part inwall of pilot hole.
According to a specific embodiment of the present utility model, described projection comprises an arc surface and than this arc surface little two planes relative with this arc surface.
According to another specific embodiment of the present utility model, described projection comprises first plane and than this first plane little two other planes relative with this first plane.
According to another specific embodiment of the present utility model, described projection comprises first plane and second plane that is positioned at first side and the 3rd plane and Siping City's face that is positioned at second side, and described first side is relative with second side.
According to another specific embodiment of the present utility model, described projection comprises an arc surface and a plane relative with this arc surface.
According to another specific embodiment of the present utility model, described projection comprises two planes that are oppositely arranged.
According to another specific embodiment of the present utility model, described projection is arranged on described at least one plane at least.
Preferably, described at least one plane is provided with two projectioies.More preferably, two projectioies that are provided with on described at least one plane all interconnect with the cambered surface of inwall.
According to another aspect of the present utility model, a kind of compressor is provided, comprising: axle; And equilibrium block, described equilibrium block interference is assemblied on the axle, it is characterized in that, and described equilibrium block is any equilibrium block recited above.
As can be seen, according to the compressor of equilibrium block of the present utility model and this equilibrium block of application, only part plane interference during assembling, therefore new balance block fixing structure stress is clear and definite, solved the problem that existing full interference designed constraint, controllability and stability are improved.
In addition, compressor according to equilibrium block of the present utility model and this equilibrium block of application, owing to have deformable gap area between equilibrium block and the axle, reduce assembling and be pressed into power and the stress that assembles the back part, therefore reduced the risk that assembling difficulty and equilibrium block damage.
Description of drawings
With reference to below in conjunction with the explanation of accompanying drawing, can understand above and other purpose of the present utility model, characteristics and advantage more easily to the utility model embodiment.Parts in the accompanying drawing are just in order to illustrate principle of the present utility model.In the accompanying drawings, same or similar technical characteristics or parts will adopt identical or similar reference character to represent.In the accompanying drawing:
The aluminium post that Fig. 1 illustrates by stretching out on the rotor is riveted on epitrochanterian schematic representation with equilibrium block;
Fig. 2 illustrates the equilibrium block interference is assemblied in schematic representation on the axle;
Fig. 3 illustrates the schematic representation that the equilibrium block interference is assemblied in interference surface of contact when spool last;
Fig. 4 illustrates the schematic representation that equilibrium block according to an embodiment of the present utility model is assemblied in interference surface of contact when spool last;
Fig. 5 illustrates the schematic representation that equilibrium block according to another embodiment of the present utility model is assemblied in interference surface of contact when spool last;
Fig. 6 illustrates the schematic representation that equilibrium block according to another embodiment of the present utility model is assemblied in interference surface of contact when spool last;
Fig. 7 illustrates the schematic representation that equilibrium block according to another embodiment of the present utility model is assemblied in interference surface of contact when spool last; And
Fig. 8 illustrates the schematic representation that equilibrium block according to another embodiment of the present utility model is assemblied in interference surface of contact when spool last.
Embodiment
Embodiment of the present utility model is described with reference to the accompanying drawings.Should be noted that for fear of having blured the utility model because of unnecessary details, only show in the accompanying drawings with according to the closely-related apparatus structure of scheme of the present utility model, and omitted other details little with the utility model relation.In addition, it is pointed out that also element and the feature described can combine with element and the feature shown in one or more other accompanying drawing or the mode of execution in an accompanying drawing of the present utility model or a kind of mode of execution.
Fig. 4 to Fig. 8 illustrates the schematic representation that equilibrium block according to embodiment of the present utility model is assemblied in interference surface of contact when spool last respectively.
, include pilot hole and be arranged on projection on the part inwall of pilot hole to shown in Figure 8 as Fig. 4 according to the equilibrium block of each specific embodiment of the present utility model.Here, the inwall of the pilot hole of equilibrium block has at least one cambered surface and at least one plane, as Fig. 4 and shown in Figure 7.Certainly, the inwall of the pilot hole of equilibrium block also can have a plurality of cambered surfaces and a plurality of plane, as Fig. 5, Fig. 6 and shown in Figure 8.
In according to embodiment of the present utility model, the projection on the inwall is arranged on described at least one plane, as shown in Fig. 4 to Fig. 8 at least.Certainly, the projection on the inwall also can be arranged on the arc surface, shown in 41 among Fig. 4.
Preferably, at least one plane of inwall is provided with two projectioies, as shown in Fig. 4 to Fig. 6.More preferably, two projectioies that are provided with on described at least one plane all interconnect with the cambered surface of inwall, as shown in Figure 4.
Particularly, as shown in Figure 4, be with the difference of the design of interference simultaneously of arc surface and plane in the existing equilibrium block, new linkage structure adopts 3 points (being three facets in fact) contacts, parallel two facets 42 with 43 with the support fixed structure of relative one section arc surface, 41 formation equilibrium blocks.That is to say, contact by 3 interference with axle according to this embodiment's equilibrium block, rather than section arc surface interference entirely.
According to this embodiment, the power 2F of plane 42 and 43 power F and arc surface 43 forms couple and overcomes the start-stop moment of torsion, and the space D between two planes 42 and 43 is big more, and the torque of couple that can provide is big more.In addition, because the diameter of axle is less than the internal diameter of equilibrium block, so other zones are gaps except that 3 zones of contact.
According to this embodiment, solved the uncertain problem of stress, there is clear and definite pretightening force the assembling back on the surface of contact of contact.To the effect of moment of flexure and moment of torsion, has better anti-loosing effect according to the design of this embodiment's equilibrium block in working order down.In addition,, can directly react the stress of connection, improve the controllability of assembly quality by to being pressed into the monitoring of power.
In addition, design newly provides the space of the deformable when press-fiting, and compares the interference of whole circle, and the tensile stress of generation can reduce greatly, has reduced the risk of equilibrium block drawing crack, has also reduced the power that is pressed into required when assembling simultaneously.
Certainly, equilibrium block of the present utility model is not limited only to said structure, but can carry out various modification, gets final product so long as not the full interference design of arc surface and plane.That is to say, just can play good effect as long as the part internal diameter of equilibrium block is provided with the projection that is used for interference fit.
For example, described projection can comprise a plane and than this plane little two other planes relative with this plane.Fig. 5 shows the schematic representation that this equilibrium block according to an embodiment of the present utility model is assemblied in interference surface of contact when spool last.As shown in Figure 5, replaced the arc surface 41 shown in Fig. 4 with a big plane 51.
In addition, described projection also can comprise two planes and two other plane relative with these two planes.Fig. 6 shows the schematic representation that this equilibrium block according to an embodiment of the present utility model is assemblied in interference surface of contact when spool last.As shown in Figure 6, replaced the arc surface 41 shown in Fig. 4 with two little planes 61 and 61 '.
Certainly, described projection also can comprise an arc surface and a plane relative with this arc surface.Fig. 7 shows the schematic representation that this equilibrium block according to an embodiment of the present utility model is assemblied in interference surface of contact when spool last.As shown in Figure 7, two little planes 42 shown in Fig. 4 and 43 have been replaced with a big plane 71.
In addition, described projection can also be two planes that are oppositely arranged.Fig. 8 shows the schematic representation that this equilibrium block according to an embodiment of the present utility model is assemblied in interference surface of contact when spool last.As shown in Figure 8, come to carry out interference fit as the interference surface of contact with two bigger planes 81 that are oppositely arranged and 82 with axle.
In addition, the utility model also provides a kind of compressor.This compressor comprises that axle and interference are assemblied in the equilibrium block on the axle.The equilibrium block here can be any equilibrium block described above.
From top description, can know, compressor according to equilibrium block of the present utility model and this equilibrium block of application, only part plane interference during assembling, therefore new balance block fixing structure stress is clear and definite, thereby solved the problem that existing full interference designed constraint, controllability and stability are improved.
In addition, compressor according to equilibrium block of the present utility model and this equilibrium block of application, owing to have deformable gap area between equilibrium block and the axle, reduce assembling and be pressed into power and the stress that assembles the back part, therefore reduced the risk that assembling difficulty and equilibrium block damage.
Preferred implementation of the present utility model has more than been described.Those of ordinary skill in the art knows that protection domain of the present utility model is not limited to detail disclosed herein, and can have various variations and equivalents in spirit scope of the present utility model.
Claims (10)
1. equilibrium block is characterized in that comprising:
Pilot hole, the inwall of described pilot hole have at least one cambered surface and at least one plane; And
Be arranged on the projection on the part inwall of pilot hole.
2. equilibrium block according to claim 1, wherein said projection comprise an arc surface and than this arc surface little two planes relative with this arc surface.
3. equilibrium block according to claim 1, wherein said projection comprise first plane and than this first plane little two other planes relative with this first plane.
4. equilibrium block according to claim 1, wherein said projection comprise first plane and second plane that is positioned at first side and the 3rd plane and Siping City's face that is positioned at second side, and described first side is relative with second side.
5. equilibrium block according to claim 1, wherein said projection comprise an arc surface and a plane relative with this arc surface.
6. equilibrium block according to claim 1, wherein said projection comprise two planes that are oppositely arranged.
7. equilibrium block according to claim 1, wherein said projection are arranged on described at least one plane at least.
8. equilibrium block according to claim 7, wherein described at least one plane is provided with two projectioies.
9. equilibrium block according to claim 8, wherein two projectioies that are provided with on described at least one plane all interconnect with the cambered surface of inwall.
10. compressor comprises:
Axle; And
Equilibrium block, described equilibrium block interference is assemblied on the axle,
It is characterized in that described equilibrium block is according to the arbitrary described equilibrium block of claim 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201249028U CN202056056U (en) | 2011-04-18 | 2011-04-18 | Balancing weight and compressor applying same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201249028U CN202056056U (en) | 2011-04-18 | 2011-04-18 | Balancing weight and compressor applying same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202056056U true CN202056056U (en) | 2011-11-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201249028U Expired - Lifetime CN202056056U (en) | 2011-04-18 | 2011-04-18 | Balancing weight and compressor applying same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202056056U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104271959A (en) * | 2012-03-23 | 2015-01-07 | 比策尔制冷机械制造有限公司 | Crankshaft with aligned drive and counterweight locating features |
| CN110417142A (en) * | 2018-04-26 | 2019-11-05 | 上海汽车集团股份有限公司 | Electric boosting steering system, motor and its rotor dynamic balancing method |
-
2011
- 2011-04-18 CN CN2011201249028U patent/CN202056056U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104271959A (en) * | 2012-03-23 | 2015-01-07 | 比策尔制冷机械制造有限公司 | Crankshaft with aligned drive and counterweight locating features |
| US9909586B2 (en) | 2012-03-23 | 2018-03-06 | Bitzer Kuehlmaschinenbau Gmbh | Crankshaft with aligned drive and counterweight locating features |
| CN110417142A (en) * | 2018-04-26 | 2019-11-05 | 上海汽车集团股份有限公司 | Electric boosting steering system, motor and its rotor dynamic balancing method |
| CN110417142B (en) * | 2018-04-26 | 2021-05-18 | 上海汽车集团股份有限公司 | Electric power steering system, motor and rotor dynamic balance method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: EMERSON CLIMATE TECHNOLOGIES (SUZHOU) CO., LTD. Free format text: FORMER OWNER: EMERSON CLIMATE TECHNOLOGIES (SUZHOU) RESEARCH + DEVELOPMENT CO., LTD. Effective date: 20120411 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120411 Address after: 215021 Suzhou Industrial Park, Jiangsu, Hong Hong Road, No. 69 Patentee after: EMERSON CLIMATE TECHNOLOGIES (SUZHOU) Co.,Ltd. Address before: 215021, Emerson building, 1355 international science and Technology Park, Jinji Lake Avenue, Suzhou Industrial Park, Jiangsu, China Patentee before: Emerson Climate Technologies (Suzhou) Research & Development Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111130 |