CN203822640U - Assembly structure for rotor and shaft of compressor - Google Patents
Assembly structure for rotor and shaft of compressor Download PDFInfo
- Publication number
- CN203822640U CN203822640U CN201420239604.7U CN201420239604U CN203822640U CN 203822640 U CN203822640 U CN 203822640U CN 201420239604 U CN201420239604 U CN 201420239604U CN 203822640 U CN203822640 U CN 203822640U
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- China
- Prior art keywords
- rotor
- axle
- shaft
- upper plate
- compressor
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- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- 238000009966 trimming Methods 0.000 claims description 6
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses anassembly structure for a rotor and a shaft of a compressor. Theassembly structure comprises the rotor and the shaft, wherein the shaft is sleeved with the rotor; an upper propping plate which is in rigid connection with the rotor is arranged on theupper end surface of the rotor; a gap equal to the upper propping plate in thickness is arranged at theupper end of the shaft; a through hole is formed in the center of the upper propping plate; a bulge block which is matched with the gap in shape and meshed with the gap during assembly is arranged at the through hole; a threaded hole is formed in the axis of the outer end of the shaft; the upper propping plate is in rigid connection with the shaft through a bolt; a nut of the bolt is contacted with and propped against the upper propping plate. According to the assembly structure, appearance structures of the upper propping plate and the shaft are improved to enable shapes of the upper propping plate and the shaft to be meshed closely, and the physical propping structure of the bolt is improved, so that the clamping force of the shaft and the rotor after assembly is enhanced, and the reliable assembly of the shaft and the rotor is realized.
Description
Technical field
The utility model relates to compressor field, particularly about a kind of rotor of compressor and the assembly structure of axle.
Background technique
In refrigeration compressor, the assembling of rotor and axle realizes by interference hot charging conventionally.Interference hot charging mainly utilizes the performance of expanding with heat and contract with cold of material.The rotor of expanded by heating is enclosed within on axle, after rotor restores, produces the tightening force to axle, guarantee that rotor is closely connected with axle.Hot charging mode need to heat rotor, and the deformation of assembly process rotor is larger, easily produces quality problems, and particularly some small-sized machines, are used hot charging mode often because its excessive deformation causes outstanding quality problems.
Model utility content
In view of this, the utility model is for solving the problems of the technologies described above, a kind of rotor of compressor and the assembly structure of axle are provided, by improving the form structure of upper plate and axle, improvement in the shape that makes upper plate and the axle physical arrangement that closely press on the top of engagement and bolt, the tightening force of reinforced assembly rear axle and rotor, realizes the reliable assembling of axle and rotor.
The purpose of this utility model is achieved through the following technical solutions:
A kind of rotor of compressor and the assembly structure of axle, comprise rotor and axle, described rotor is socketed on axle, described rotor upper-end surface is provided with and the rigidly connected upper plate of rotor, the upper end portion of described axle is provided with the breach that thickness equates with upper plate thickness, and described upper plate center is provided with through hole, and described through hole is provided with intermeshing projection when matching and assembling with described notch geometry, the axle center, outer end of described axle is provided with tapped hole, and described upper plate is rigidly connected by bolt and axle; The nut of described bolt contacts with upper plate and mutually pushes up and press.
Described breach mates or part coupling for complete with the matching way of projection.
Described upper plate is provided with the first balancing weight.
Described axle lower end surface is provided with draw-in groove or trimming, and the number of described draw-in groove or trimming is one or more.
The utility model compared to the beneficial effect of prior art is:
Different from traditional expand with heat and contract with cold interference hot charging mode of characteristic of workpiece of utilizing, the assembly structure of rotor of the present utility model and axle, makes improvements from structure, solves the firm matching problem of rotor and axle.
Traditional, by interference hot charging mode, rotor is arranged on axle, the magnitude of interference of rotor and between centers is larger, utilize the characteristic of expanding with heat and contract with cold of rotor, at high temperature rotor is packed on axle, the easy impact of high temperature even damages the internal components of compressor on the one hand, affects quality of product and the product rate of good product of compressor.After mode of execution of the present utility model improves, do not need to heat rotor, avoided affecting the danger of compressor internal components; The required magnitude of interference of rotor and axle is less, and the difficulty that rotor packs axle into lowers thereupon, reduces and produces line production difficulty.
Described rotor upper-end surface is provided with and the rigidly connected upper plate of rotor, the upper end portion of described axle is provided with the breach that thickness equates with upper plate thickness, described upper plate has intermeshing projection when matching and assembling with described notch geometry, the axle center, outer end of described axle is provided with tapped hole, described top board is rigidly connected by bolt and axle, and the nut of described bolt contacts with top board and mutually pushes up and press.
The upper end portion of axle of the present utility model is provided with breach, and rotor upper-end surface is provided with and the intermeshing upper plate of this breach, upper plate and rotor are rigidly connected, the nut of bolt contacts with upper plate and mutually pushes up and press, be bolted upper plate, and because upper plate and rotor are to be rigidly connected, make the banding Du Genggao of rotor and axle assembling; This structure that upper plate, axial end breach and bolt coordinate, further optimizes the assembly structure of rotor and axle, the stability of enhancing compressor operating.
Accompanying drawing explanation
The utility model is described in further detail to utilize accompanying drawing, but embodiment in accompanying drawing does not form any restriction of the present utility model.
Fig. 1 is the embodiment's 1 of the present utility model rotor of compressor and the plan view of the assembly structure of axle.
Fig. 2 is the embodiment's 1 of the present utility model rotor of compressor and the front view of the assembly structure of axle.
Fig. 3 is the embodiment's 1 of the present utility model rotor of compressor and the axle upper end surface structure schematic diagram of the assembly structure of axle.
Fig. 4 is the embodiment's 1 of the present utility model rotor of compressor and the axle lower end surface structural representation of the assembly structure of axle.
Fig. 5 is the embodiment's 1 of the present utility model rotor of compressor and the counterweight distribution schematic diagram of the assembly structure of axle.
Fig. 6 is the embodiment's 2 of the present utility model rotor of compressor and the front view of the assembly structure of axle.
Embodiment
For the ease of it will be appreciated by those skilled in the art that below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail.
Please refer to Fig. 1-Fig. 5, the utility model embodiment 1 comprises:
A kind of rotor of compressor and the assembly structure of axle, comprise rotor 11 and axle 12, rotor 11 is socketed on axle 12, rotor 11 upper-end surfaces are provided with and the rigidly connected upper plate 16 of rotor, the upper end portion of axle 12 is provided with the breach 13 that thickness equates with upper plate thickness, and upper plate 16 centers are provided with through hole, and through hole is provided with intermeshing projection 161 when matching with notch geometry and assembling, the axle center, outer end 15 of axle 12 is provided with tapped hole, and upper plate 16 is rigidly connected by bolt 14 and axle 12; The nut of bolt 14 contacts with upper plate 16 and mutually pushes up and press.
The upper end portion of axle is provided with breach, and rotor upper-end surface is provided with and the intermeshing upper plate of this breach, upper plate and rotor are rigidly connected, the nut of bolt contacts with upper plate and mutually pushes up and press, be bolted upper plate, and because upper plate and rotor are to be rigidly connected, make the banding Du Genggao of rotor and axle assembling; This structure that upper plate, axial end breach and bolt coordinate, further optimizes the assembly structure of rotor and axle, the stability of enhancing compressor operating.
Described breach 13 mates for part with the matching way of projection 161, and breach below part hollow out, as the pre-reservation surplus of rotor assembling.
Because the effect of breach 13 is mainly intermeshing with the projection of upper plate, to guarantee not relatively rotating of axle and rotor; Therefore, the shape of breach 13 can be diversified, if breach 13 can be both linear trimming, can be also that other shapes are as the trimming of circular arc, sawtooth.
The thickness of breach of the present utility model is less than the thickness of rotor, therefore needn't on rotor inner circle sidewall, be provided with projection complete, that equate with rotor thickness, reduce the production difficulty of rotor assembling, improved the manufacturing efficiency of rotor assembling, created higher economic benefit.
Upper plate 16 is provided with the first balancing weight 162; Rotor 11 lower end surfaces are provided with and the rigidly connected lower roof plate 17 of rotor, and lower roof plate 17 is provided with the second balancing weight 171; The axle center 191 of the barycenter of the second balancing weight 171 and eccentric wheel 19 is about axle center 121 symmetries of axle 12.
Because the axle of compressor mostly is eccentric shaft, axle is provided with eccentric wheel, therefore need on rotor, install balancing weight additional, and do corresponding dynamic balance analysis, guarantees that rotor is in the predetermined range at allowable amount of unbalance dynamically time, guarantees the superperformance of compressor.
Axle 12 lower end surfaces are provided with a draw-in groove 18.For guaranteeing to be fixed on the balancing weight of epitrochanterian upper plate and lower roof plate and the angle of assembling of eccentric shaft is accurate, while preventing due to assembling, axle rotates and affects the degree of accuracy of assembling, and the utility model arranges draw-in groove in the lower end surface of axle; During assembling, the draw-in groove of axle is fixed on the protruding block on worktable, and axle can be under the impact of external force and deflect, and promotes the rate of good product of assembling, strengthens product quality.
Please refer to Fig. 6, the utility model embodiment 2 comprises:
The present embodiment is compared with embodiment 1, and difference is only that the internal diameter of lower roof plate 27 is larger than the internal diameter of the lower roof plate 17 in embodiment 1, matches with the stepped axial wall shape of axle.The stressed rotor lower end surface that acts directly on of the stepped axial wall of axle; Can to be subject to the active force making progress that axle applies it different from lower roof plate 17 in embodiment 1, and the lower roof plate 27 in the present embodiment 2 can not be subject to the active force of axle to it, and distribution of forces, on the firmer rotor of structure, makes the assembly structure of rotor and axle more reasonable.
Finally should be noted that; above embodiment illustrates the technical solution of the utility model; but not restriction to the utility model protection domain; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement the technical solution of the utility model, and not depart from essence and the scope of technical solutions of the utility model.
Claims (4)
1. the rotor of a compressor and the assembly structure of axle, comprise rotor (11) and axle (12), described rotor is socketed on axle, it is characterized in that: described rotor upper-end surface is provided with and the rigidly connected upper plate of rotor (16), the upper end portion of described axle is provided with the breach (13) that thickness equates with upper plate thickness, described upper plate center is provided with through hole, described through hole is provided with described notch geometry and matches, and intermeshing projection (161) during assembling, the axle center, outer end (15) of described axle is provided with tapped hole, described upper plate is rigidly connected by bolt (14) and axle, the nut of described bolt contacts with upper plate and mutually pushes up and press.
2. the rotor of compressor according to claim 1 and the assembly structure of axle, is characterized in that: described breach mates or part coupling for complete with the matching way of projection.
3. the rotor of compressor according to claim 2 and the assembly structure of axle, is characterized in that: described upper plate is provided with the first balancing weight (162).
4. the rotor of compressor according to claim 3 and the assembly structure of axle, is characterized in that: described axle lower end surface is provided with draw-in groove (18) or trimming, and the number of described draw-in groove or trimming is one or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239604.7U CN203822640U (en) | 2014-05-12 | 2014-05-12 | Assembly structure for rotor and shaft of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239604.7U CN203822640U (en) | 2014-05-12 | 2014-05-12 | Assembly structure for rotor and shaft of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203822640U true CN203822640U (en) | 2014-09-10 |
Family
ID=51478149
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420239604.7U Expired - Lifetime CN203822640U (en) | 2014-05-12 | 2014-05-12 | Assembly structure for rotor and shaft of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203822640U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106407611A (en) * | 2016-11-03 | 2017-02-15 | 瑞智(青岛)精密机电有限公司 | Balancing weight design and calculation method of rotary compressor |
-
2014
- 2014-05-12 CN CN201420239604.7U patent/CN203822640U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106407611A (en) * | 2016-11-03 | 2017-02-15 | 瑞智(青岛)精密机电有限公司 | Balancing weight design and calculation method of rotary compressor |
| CN106407611B (en) * | 2016-11-03 | 2019-04-26 | 瑞智(青岛)精密机电有限公司 | A kind of Rotary Compressor clump weight design and calculation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140910 |