CN203476708U - Support member and compressor comprising such a support member - Google Patents
Support member and compressor comprising such a support member Download PDFInfo
- Publication number
- CN203476708U CN203476708U CN201320533585.4U CN201320533585U CN203476708U CN 203476708 U CN203476708 U CN 203476708U CN 201320533585 U CN201320533585 U CN 201320533585U CN 203476708 U CN203476708 U CN 203476708U
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- support member
- compressor
- auxiliary section
- bearing seat
- circle tube
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Abstract
The present invention relates to a support member for fitting in a cylindrical member, the support member comprising an engagement portion in engagement relation with an inner wall of the cylindrical member, the engagement portion comprising a cylindrical portion and a conical portion. Since the fitting portion of the support member according to the present invention includes the cylindrical portion for forming the interference fit with the inner wall of the cylindrical member and the tapered portion having the gradually changing profile, in the process of assembling the support member into the cylindrical member, the scratch of the fitting portion of the support member to the inner wall of the cylindrical member can be reduced, and the metal chips scraped from the inner wall of the cylindrical member is prevented or reduced as much as possible. Thus, the normal operation of the equipment adopting the structure can be ensured, and the service life of the equipment is prolonged.
Description
Technical field
The utility model relates to a kind of support member, more specifically, relates to a kind of for being assemblied in the support member of circle tube member.Also relate to a kind of compressor that comprises this support member.
Background technique
At present, in prior art, exist many need to by for supporting rotating component such as for the support member of bearing, be installed to circle tube member equipment.Such as in scroll compressor, when assembling scroll compressor, the main bearing seat for supporting spindle need to be assembled to the inner chamber of the housing of scroll compressor.Main bearing seat plays the effect of carrying main shaft in compressor, and in the running of compressor, main bearing seat can not produce slippage or biasing, need to guarantee the stability of the interference fit between main bearing seat and compressor housing.
The assembling of the main bearing seat of scroll compressor normally completes by the technology of colding pressing.The precision of main bearing seat assembling and the assembly quality performance when directly affecting compressor operating.If the perpendicularity of main bearing seat and compressor housing and concentricity can not get guaranteeing well in the installation process of main bearing seat, in the operation process of compressor, be easy to occur main-shaft spindle head wearing and tearing, vibration of compressor, the motor feels hot, and amount greatly, is even damaged the situation of motor.
In addition, owing to conventionally needing utilization to be pressed into operation in the assembly process at main bearing seat and compressor housing, main bearing seat is pressed in compressor housing, it in the process being pressed into, between main bearing seat and compressor housing, is interference assembling, therefore in process of press in, main bearing seat is easy to the inwall of scratch compressor housing, and is easy to produce the metal fragment on the inwall that is adsorbed on compressor housing.Along with the running of compressor, metal fragment is easy to be blended in the Lubricants of compressor, and along with Lubricants circulates in the lubricated stream of compressor.Obviously, this is breakneck for compressor, and the metal fragment being blended in Lubricants has not only increased the friction of the running gear in compressor, and is easy to make compressor global failure.In addition, metal fragment is easy to stick to be more with on magnetic rotor, and this is breakneck for operating motor, is easy to cause due to the fault of motor the inefficacy of whole compressor.
Therefore, in prior art, need a kind of can guarantee such as for the support member of bearing in the situation that the installation precision in circle tube member, in the process in the inner chamber that support member is pressed into circle tube member, do not produce or produce less as much as possible the technology of metal fragment.
Model utility content
It is a kind of for being assemblied in the support member of circle tube member that the utility model provides.This support member comprises the auxiliary section that forms matching relationship with the inwall of circle tube member, and auxiliary section comprises cylindrical part and tapering part.
According to of the present utility model for being assemblied in an embodiment of the support member of circle tube member, the length L 2 of tapering part along the length L 1 of the axial direction of support member and cylindrical part along the axial direction of support member meets following relation, that is: 2.981≤L1/L2≤4.475.
According to of the present utility model for being assemblied in another embodiment of support member of circle tube member, above-mentioned length L 1 with the ratio of above-mentioned length L 2 is: L1/L2=3.7.
According to of the present utility model for being assemblied in another embodiment of the support member of circle tube member, in the longitudinal profile of support member, the elongation line of the outer rim of tapering part and the outer rim of cylindrical part forms angle α, and the span of angle α is: 0.64 °≤α≤1.05 °.
According to of the present utility model for being assemblied in the also embodiment of support member of circle tube member, above-mentioned angle α is 0.85 °.
According to of the present utility model, for being assemblied in another embodiment of the support member of circle tube member, auxiliary section is continuous along the circumferencial direction of support member.
According to of the present utility model for being assemblied in another embodiment of support member of circle tube member, auxiliary section is discontinuous along the circumferencial direction of support member.
According to of the present utility model for being assemblied in another embodiment of the support member of circle tube member, auxiliary section comprises at least two supporting arms that arrange equably along the circumferencial direction of support member, and supporting arm radially stretches out from the support body of support member.
According to of the present utility model for being assemblied in the also embodiment of support member of circle tube member, support member also comprises in its assembly process, support member being guided to the chamfered section in circle tube member, chamfered section and tapering part adjacency.
According to of the present utility model, for being assemblied in another embodiment of the support member of circle tube member, on auxiliary section, be provided with for the positioning hole with respect to circle tube member location.
According to of the present utility model for being assemblied in another embodiment of support member of circle tube member, above-mentioned positioning hole is arranged on tapering part completely.
According to of the present utility model, for being assemblied in an also embodiment of the support member of circle tube member, the inwall of auxiliary section and circle tube member forms interference fit.
According to of the present utility model for being assemblied in another embodiment of support member of circle tube member, the cylindrical part of auxiliary section and tapering part all form interference fit with the inwall of circle tube member.
According to of the present utility model for being assemblied in another embodiment of the support member of circle tube member, the outer radius of the smallest ends of tapering part is less than the outer radius of cylindrical part, and the difference of the outer radius of the outer radius of cylindrical part and the smallest ends of tapering part is not less than the maximum interference amount between circle tube member and auxiliary section.
According to of the present utility model, for being assemblied in another embodiment of the support member of circle tube member, support member is bearing or bearing support.
According to of the present utility model for being assemblied in the also embodiment of support member of circle tube member, described circle tube member is compressor housing.
The utility model also provides a kind of compressor, and this compressor comprises compressor housing and be arranged on the main bearing seat in compressor housing, and wherein, this main bearing seat is any support member as above.
According in above-mentioned compressor of the present utility model embodiment, this compressor is scroll compressor.
According to of the present utility model for being assemblied in the support member of circle tube member, because comprising for the inwall with circle tube member, the auxiliary section of this support member forms the cylindrical part of interference fit and the tapering part with gradual change profile, therefore, at support member in the assembly process in circle tube member, the scratch of the auxiliary section that can alleviate support member to the inwall of circle tube member, prevents from or reduces as much as possible from the inwall of circle tube member scraping metal fragment.Meanwhile, after support member is assembled in circle tube member, can guarantee between support member and circle tube member, to there is enough interference power, thereby guarantee the join strength of support member and circle tube member.Adopting according in the compressor of support member of the present utility model, can avoid the inwall from compressor housing in assembly process to scrape metal fragment, thereby in the operation process of compressor, do not have in the lubricant oil that chip is mixed into compressor, guarantee thus the normal running of compressor, and extend the working life of compressor.
Accompanying drawing explanation
By the embodiment part providing referring to accompanying drawing, it is easier to understand that feature and advantage of the present utility model will become, in described accompanying drawing:
Fig. 1 illustrates to adopt according to the sectional view of support member of the present utility model embodiment's compressor;
Fig. 2 illustrates according to support member of the present utility model embodiment's stereogram;
Fig. 3 is an embodiment's of the support member shown in Fig. 2 sectional view; And
Fig. 4 is the schematic diagram that amplify the part of part A in Fig. 3.
Embodiment
With reference to the accompanying drawings the utility model illustrative embodiments is described in detail.To the description of illustrative embodiments, be only for demonstration object, and be never the restriction to the utility model and application or usage.
Below for the main bearing seat 16 of scroll compressor 10 for example explanation according to of the present utility model for being assemblied in the embodiment of the support member of circle tube member.At this, circle tube member is the housing of scroll compressor 10.Significantly, at this, just for the main bearing seat 16 of scroll compressor 10, describe for example, according to support member of the present utility model can for be assemblied in circle tube member for playing the various members of supporting role, such as being various bearings or bearing support.Therefore the main bearing seat 16 for scroll compressor 10 that, is not limited to be described as embodiment in this article according to support member of the present utility model.
Employing is scroll compressor 10 according to the compressor of main bearing seat 16 of the present utility model, it mainly comprises motor 12 as drive unit, as the scroll component 18 of compression actuating device, rotatablely moving of motor 12 is passed to the main shaft 14 of scroll component 18 and for main shaft 14 and scroll component 18 are bearing in to the main bearing seat 16 in scroll compression engine housing 11.The stator 122 of motor 12 forms interference fit with compressor housing 11, thereby relatively with compressor housing 11 is set together regularly.The rotor 124 of motor 12 can be rotatably set in the stator cavity of stator 122, and can be with respect to stator 122 rotations.In the rotor hole of rotor 124, be equipped with main shaft 14, main shaft 14 is relative with rotor 124 to be set together regularly, thereby main shaft 14 can be rotated with rotor 124.
The end of main shaft 14 can be rotated to support in compressor housing 11 by main bearing seat 16, and as shown in Figure 1, main shaft 14 is bearing in the bearing hole of main bearing seat 16 by the sliding bearing 161 being arranged in the bearing hole of main bearing seat 16.The tip portion of main shaft 14 can be rotatably set in the hub portion 186 of moving vortex 182 by sliding bearing 142, thereby rotatablely moving of the rotor of motor 12 124 is passed to moving vortex 182.Determining vortex 184 is non-rotatably arranged in housing 11 with respect to compressor housing 11, by moving vortex 182, with respect to the motion of determining vortex 184, change the volume that is formed on moving vortex 182 and determines the compression chamber between vortex 184, thereby realize suction, compression and the discharge process of 10 pairs of refrigeration agents of compressor.
From accompanying drawing 1, can be clear that, the installation precision of main bearing seat 16 in compressor housing 11 and installment state have very large impact for yield rate and the working efficiency of compressor 10.The end via compressor housing 11 is press fit in the inner chamber of compressor housing 11 by main bearing seat 16 can to utilize mould.Because main bearing seat 16 need to be pressed in the inner chamber of compressor housing 11, therefore the structure of the periphery wall coordinating with compressor housing 11 of main bearing seat 16 and the structure of the inwall of precision and compressor housing 11 and precision have larger impact for the assembly process of compressor 10, and the performance of the compressor 10 after assembling is also had to larger impact.
Referring to accompanying drawing 2 and accompanying drawing 3, describe in detail according to the structure of main bearing seat 16 of the present utility model.As shown in Figure 2, according to main bearing seat 16 of the present utility model, comprise bearing body 162, at bearing body 162 center, be formed with for the main shaft supporting hole 1622 of supporting spindle 14 with for the moving vortex receiving hole 1624 of the hub portion 186 of accommodating moving vortex 182.Main bearing seat 16 also comprises from bearing body 162 and radially reach out to a plurality of supporting arms 164 that arrange, and advantageously, according in the embodiment shown in Fig. 2-Fig. 4, main bearing seat 16 comprises four supporting arms 164.Certainly, the supporting arm 164 of other any amount can be set equably around the bearing body 162 of main bearing seat 16.Such as supporting arm 164 being arranged to an integral body, or around bearing body 162, two, three, five or more supporting arm 164 are set equably.That is to say, supporting arm 164 can be the integrated type supporting arm that the circumferencial direction along main bearing seat 16 arranges continuously, can be also circumferencial direction along main bearing seat 16 arrange discontinuously at least two supporting arm independently separately.
The supporting arm 164 of main bearing seat 16 outermost end radially forms the auxiliary section 1642 that forms matching relationship with the inwall of compressor housing 11.In the process being pressed into the inner chamber of compressor housing 11 at main bearing seat 16, the auxiliary section 1642 of supporting arm 164 fully contacts with the inwall of compressor housing 11, and is press-fit into gradually rigging position from the end of the inner chamber of compressor housing 11.For the starting stage in the inner chamber main bearing seat 16 being assembled to compressor housing 11 can successfully be directed to main bearing seat 16 in the inner chamber of compressor housing 11, the auxiliary section 1642 of main bearing seat 16 in assembling time the end that is first assembled in the inner chamber of compressor housing 11 be formed with chamfered section 1644, to can make the end of main bearing seat 16 successfully be arranged in compressor housing 11 when assembling.In addition, on auxiliary section 1642, be formed with positioning hole 1643, when main bearing seat 16 is press fit in compressor housing 11, can coordinate by the positioning hole 1643 on the auxiliary section 1642 of outstanding protuberance from the inwall of compressor housing 11 and main bearing seat 16, main bearing seat 16 is arranged in compressor housing 11 more securely.
In order to prevent that in main bearing seat 16 is press-fited to the process in the inner chamber that is fitted on compressor housing 11 auxiliary section 1642 of main bearing seat 16 from forming scratch or preventing that auxiliary section 1642 from scraping metallic material from the inwall of compressor housing 11 on the inwall of compressor housing 11, the auxiliary section of main bearing seat 16 1642 is formed and has certain tapering, in other words, make the auxiliary section 1642 of main bearing seat 16 form taper.
Referring to accompanying drawing 4, describe in detail according to the concrete structure of the auxiliary section 1642 of the supporting arm 164 of main bearing seat 16 of the present utility model.Fig. 4 is the schematic diagram that amplify the part of part A of the supporting arm 164 of the main bearing seat 16 shown in Fig. 3.For the cylindrical part 1648 of auxiliary section 1642 of supporting arm 164 of main bearing seat 16 and the position relationship between tapering part 1646 are shown more significantly, in Fig. 4, show turgidly the angular dependence between cylindrical part 1648 and the edge of tapering part 1646.The auxiliary section 1642 of the supporting arm 164 of main bearing seat 16 comprises three parts substantially, for main bearing seat 16 being guided to the chamfered section 1644 of compressor housing, the tapering part 1646 adjacent with chamfered section 1644 and the cylindrical part 1648 adjacent with tapering part 1646 in when assembling.As mentioned above, chamfered section 1644 is for being directed to the end of main bearing seat 16 in compressor housing 11 in the assembling starting stage.Certainly, also chamfered section 1644 can be set, main bearing seat 16 is directly press fit in compressor housing 11 from tapering part 1646 one end.Cylindrical part 1648 similarly to the prior art, can form interference fit for the inwall with compressor housing 11, thereby main bearing seat 16 is arranged in compressor housing 11 regularly.
According to the outstanding of main bearing seat 16 of the present utility model, be characterised in that, on the auxiliary section 1642 of the supporting arm 164 of main bearing seat 16, be formed with tapering part 1646.Due to tapering part 1646 being set, therefore in the assembly process of main bearing seat 16, can make the auxiliary section 1642 of main bearing seat 16 increase gradually with the magnitude of interference of the inwall of compressor housing 11, thereby interference power is increased gradually, to prevent that main bearing seat 16 scrapes excessive metallic material from the inwall of compressor housing 11 in assembly process, or the amount of the metallic material that minimizing scrapes as much as possible.This can prevent that metal fragment from entering the oil circulation system of compressor with lubricant oil, can improve thus the working efficiency of compressor and the working life of prolongation compressor.Certainly, in the situation that meet certain installation strength, can make the inwall part or all of and circle tube member of tapering part 1646 not there is magnitude of interference, that is to say, the part or all of external diameter of tapering part 1646 can be arranged to be less than the internal diameter of circle tube member, only at cylindrical part 1648 places, forms interference fit thus.
Certainly, the assembling intensity in order to ensure main bearing seat 16 in compressor housing 11, the shape of the auxiliary section 1642 of the supporting arm 164 of main bearing seat 16 need to meet some requirements.As shown in Figure 4, the length of supposing tapering part 1646 is L1, and the length of cylindrical part 1648 is L2, between L1 and L2, should meet following relation:
2.981≤L1/L2≤4.475
In the situation that the length L 1 of tapering part 1646 and the length L 2 of cylindrical part 1648 meet above-mentioned relation, can either guarantee the firmly bond strength between main bearing seat 16 and compressor housing 11, also can guarantee that main bearing seat 16 can not form excessive scratch with compressor housing 11 in assembly process, thereby prevent from producing metal fragment on the inwall of main bearing seat 16 or compressor housing 11, be conducive to guarantee the normal operation of the compressor after assembling.Advantageously, the ratio of the length L 1 of tapering part 1646 and the length L 2 of cylindrical part 1648 is L1/L2=3.7.Meet and be related to that the main bearing seat 16 of L1/L2=3.7 will have advantage as above more significantly.
In addition, in the longitudinal profile of main bearing seat 16, in the section as shown in Fig. 4, between the elongation line of the outer rim of tapering part 1646 outer rims and cylindrical part 1648, form angle α, angle α meets following scale relationships:
0.64°≤α≤1.05°
When the angle α forming between the elongation line of the outer rim of tapering part 1646 outer rims and cylindrical part 1648 meets above-mentioned relation, in the assembly process of main bearing seat 16, can effectively reduce the scratch of inwall of the 1642 pairs of compressor housings 11 in auxiliary section of main bearing seat 16, thereby further avoid forming metal fragment on the inwall of compressor housing 11, this can prevent the pollution to lubricant oil, thereby extend the working life of compressor.Advantageously, according in embodiment as in Figure 2-4 of the present utility model, the angle α forming between the elongation line of the outer rim of the outer rim of tapering part 1646 and cylindrical part 1648 is 0.85 °.When angle α is 0.85 °, according to main bearing seat 16 of the present utility model, will there is more significantly advantage as above.
As shown in Figures 3 and 4, the outer radius of the smallest ends of tapering part 1646 is than the little amount that is more than or equal to the maximum interference amount between compressor housing 11 and auxiliary section 1642 of the outer radius of cylindrical part 1648.That is to say, length is that the outer radius of the end away from cylindrical part 1648 (being the end of the diameter minimum of tapering part 1646) of the tapering part 1646 of L1 is less than the outer radius of cylindrical part 1648, and difference is between the two more than or equal to the inwall of (being not less than) compressor housing 11 and the maximum interference amount between auxiliary section 1642.Like this, when main bearing seat 16 is press-fited, be assigned to compressor housing 11 when interior, at the smallest ends place of tapering part 1646, substantially form interference fit with compressor housing 11.Can in assembly process, avoid further thus the auxiliary section 1642 of main bearing seat 16 to scrape metal fragment from the inwall of compressor housing 11.
As mentioned above, the positioning hole 1643 being formed on the auxiliary section 1642 of main bearing seat 16 is advantageously formed entirely in tapering part 1646, this can contribute to guarantee the interference fit between main bearing seat 16 and compressor housing 11, thereby guarantee the installation stability of main bearing seat 16.Therefore in addition, because positioning hole 1643 is completely formed in tapering part 1646, can avoid being fitted on compressor housing 11 and by the edge of positioning hole 1643, from the inwall of compressor housing 11, scraping metal fillings when interior main bearing seat 16 is press-fited.
As described in reference to accompanying drawing 2, main bearing seat 16 has four supporting arms 164 that arrange equably along circumferencial direction, correspondingly, at the terminal part of each supporting arm 164, is formed with auxiliary section 1642.In like manner, also can arrange along circumferencial direction other any amount supporting arms 164 are set equably.When a supporting arm 164 is set, supporting arm 164 arranges continuously along the circumferencial direction of main bearing seat 16, and auxiliary section 1642 also arranges continuously along the circumferencial direction of main bearing seat 16.When at least two supporting arms 164 are set, supporting arm 164 arranges discontinuously along the circumferencial direction of main bearing seat 16, and auxiliary section 1642 also arranges discontinuously along the circumferencial direction of main bearing seat 16.
Although the utility model is described with reference to illustrative embodiments, but be to be understood that, the utility model is not limited to the embodiment of describing in detail and illustrating in literary composition, in the situation that not departing from claims limited range, those skilled in the art can make various changes to described illustrative embodiments.
Claims (18)
1. one kind for being assemblied in the support member of circle tube member, described support member comprises the auxiliary section (1642) that forms matching relationship with the inwall of described circle tube member, it is characterized in that, described auxiliary section (1642) comprise cylindrical part (1648) and tapering part (1646).
2. support member as claimed in claim 1, wherein, the length L 2 of described tapering part (1646) along the length L 1 of the axial direction of described support member and described cylindrical part (1648) along the axial direction of described support member meets following relation:
2.981≤L1/L2≤4.475。
3. support member as claimed in claim 2, wherein, described length L 1 with the ratio of described length L 2 is:
L1/L2=3.7。
4. the support member as described in any one in claim 1-3, wherein, in the longitudinal profile of described support member, the elongation line of the outer rim of the outer rim of described tapering part (1646) and described cylindrical part (1648) forms angle α, and the span of described angle α is:
0.64°≤α≤1.05°。
5. support member as claimed in claim 4, wherein, described angle α is 0.85 °.
6. the support member as described in any one in claim 1-3, wherein, described auxiliary section (1642) are continuous along the circumferencial direction of described support member.
7. the support member as described in any one in claim 1-3, wherein, described auxiliary section (1642) are discontinuous along the circumferencial direction of described support member.
8. support member as claimed in claim 7, wherein, described auxiliary section (1642) comprises at least two supporting arms (164) that arrange equably along the circumferencial direction of described support member, and described supporting arm (164) radially stretches out from the support body (162) of described support member.
9. the support member as described in any one in claim 1-3, wherein, described support member also comprises in its assembly process, described support member being guided to the chamfered section (1644) in described circle tube member, described chamfered section (1644) and described tapering part (1646) adjacency.
10. the support member as described in any one in claim 1-3 wherein, is provided with for the positioning hole (1643) with respect to described circle tube member location on described auxiliary section (1642).
11. support members as claimed in claim 10, wherein, described positioning hole (1643) is arranged on described tapering part (1646) completely.
12. support members as described in any one in claim 1-3, wherein, described auxiliary section (1642) form interference fit with the inwall of described circle tube member.
13. support members as claimed in claim 12, wherein, the described cylindrical part (1648) of described auxiliary section (1642) and described tapering part (1646) all form interference fit with the inwall of described circle tube member.
14. support members as claimed in claim 12, wherein, the outer radius of the smallest ends of described tapering part (1646) is less than the outer radius of described cylindrical part (1648), and the difference of the outer radius of the smallest ends of the outer radius of described cylindrical part (1648) and described tapering part (1646) is not less than the maximum interference amount between described circle tube member and described auxiliary section (1642).
15. support members as described in any one in claim 1-3, wherein, described support member is bearing or bearing support.
16. support members as described in any one in claim 1-3, wherein, described circle tube member is compressor housing (11).
17. 1 kinds of compressors, described compressor comprises compressor housing (11) and is arranged on the main bearing seat in described compressor housing (11), it is characterized in that,
Described main bearing seat is according to the support member described in any one in claim 1-16.
18. compressors as claimed in claim 17, wherein, described compressor is scroll compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320533585.4U CN203476708U (en) | 2013-08-29 | 2013-08-29 | Support member and compressor comprising such a support member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320533585.4U CN203476708U (en) | 2013-08-29 | 2013-08-29 | Support member and compressor comprising such a support member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203476708U true CN203476708U (en) | 2014-03-12 |
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ID=50225047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320533585.4U Expired - Lifetime CN203476708U (en) | 2013-08-29 | 2013-08-29 | Support member and compressor comprising such a support member |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203476708U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506197A (en) * | 2017-02-24 | 2018-09-07 | 研能科技股份有限公司 | Fluid delivery system |
-
2013
- 2013-08-29 CN CN201320533585.4U patent/CN203476708U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108506197A (en) * | 2017-02-24 | 2018-09-07 | 研能科技股份有限公司 | Fluid delivery system |
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