CN203809303U - Assembly structure of rotor and shaft of compressor - Google Patents
Assembly structure of rotor and shaft of compressor Download PDFInfo
- Publication number
- CN203809303U CN203809303U CN201420239493.XU CN201420239493U CN203809303U CN 203809303 U CN203809303 U CN 203809303U CN 201420239493 U CN201420239493 U CN 201420239493U CN 203809303 U CN203809303 U CN 203809303U
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- CN
- China
- Prior art keywords
- rotor
- axle
- draw
- groove
- shaft
- Prior art date
- 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
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- 238000010438 heat treatment Methods 0.000 description 5
- 230000008961 swelling Effects 0.000 description 3
- 238000013507 mapping Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses an assembly structure of a rotor and a shaft of a compressor. The assembly structure comprises the rotor, the shaft, a first clamping groove and a second clamping groove, wherein the rotor is arranged on the shaft in a sleeving manner; the first clamping groove is formed in the shaft along the shaft diameter direction; the second clamping groove is formed in the end surface of the rotor; pin keys are arranged in the first and second clamping grooves; inner thread is formed in the axial center of the shaft; a bolt is arranged at the axial center. Through the physical structure improvement that the clamping grooves are additionally formed, the hoop force between the shaft and the rotor after assembly is enhanced, and the shaft and the rotor can be reliably assembled.
Description
Technical field
The utility model relates to compressor field, particularly about the assembly structure of a kind of compressor drum and 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 use hot charging mode often because its excessive deformation causes outstanding quality problems.
Model utility content
In view of this, the utility model, for solving the problems of the technologies described above, provides the assembly structure of a kind of compressor drum and axle, and by the improvement in the physical arrangement of increase draw-in groove, 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:
The assembly structure of a kind of compressor drum and axle, comprise rotor and axle, described rotor is socketed on axle, also comprise the first draw-in groove in the diameter of axle direction that is arranged on described axle and be arranged on the second draw-in groove on the end face of described rotor, in described the first draw-in groove and the second draw-in groove, be provided with pin key, the axle center of described axle is provided with internal thread, and described axle center is provided with bolt.
Described pin key is with the first draw-in groove, the second draw-in groove interference fit or excessively coordinate.
The both sides axial wall of described the first draw-in groove through-shaft.
The radially fluting that described the second draw-in groove is rotor.
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, avoid 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.
Owing to being all provided with draw-in groove on axle and rotor, and in draw-in groove, be provided with key or pin, main circumferential the fixing with transmitting torque being used as between axle and parts on shaft of key and pin, because draw-in groove is slotted along diametric(al), therefore key and pin also can be realized the axial restraint of parts on shaft, prevent to move axially, bolt makes axially outer swelling after screwing in axle center place, this further makes the banding Du Genggao of rotor and axle assembling, the rotor of this structure and the assembling of axle, the stability of enhancing compressor operating.
Brief description of the drawings
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 plan view of embodiment's 1 of the present utility model compressor drum and the assembly structure of axle.
Fig. 2 is the front view of embodiment's 1 of the present utility model compressor drum and the assembly structure of axle.
Fig. 3 is the plan view of embodiment's 2 of the present utility model compressor drum and the assembly structure of axle.
Fig. 4 is the front view of embodiment's 2 of the present utility model compressor drum and 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. 2, the utility model embodiment 1 comprises:
The assembly structure of a kind of compressor drum and axle, comprise rotor 11 and axle 12, rotor 11 is socketed on axle 12, also comprise the first draw-in groove 13 in the diameter of axle direction that is arranged on axle 12 and be arranged on the second draw-in groove 14 on the end face of rotor, in the first draw-in groove 13 and the second draw-in groove 14, be provided with key 17, the axle center 15 of axle is provided with internal thread, and axle center is provided with bolt 16.
Compared with traditional hot charging, assembling of the present utility model does not need heating, avoided due to the damage of heating element to compressor internal structure and miscellaneous part, and the quality of rotor can better be ensured; The tip of the axis is provided with draw-in groove, key and bolt, wherein key mapping is in draw-in groove inside, and draw-in groove is slotted along diametric(al), therefore key and pin can be realized the axial restraint of parts on shaft, prevent to move axially, bolt makes axially outer swelling after screwing in axle center place, effectively rotor is fastened on axle, the assembling that has ensured rotor and axle is firm, and the rotor of assembling and shaft clip tightness are better, and while guaranteeing compressor operation, rotor and axle keep good fit.
Key 17 and the first draw-in groove 13, the second draw-in groove 15 interference fit, key is squeezed in draw-in groove by external force, and key engages closely with draw-in groove, and key is further improved the axial and radial constraint power of rotor.
The first draw-in groove 13 is arranged on the end of axle, and the both sides axial wall of through-shaft 12; The fluting that does not radially run through outer wall that the second draw-in groove 14 is rotor 11.
Please refer to Fig. 3, Fig. 4, the utility model embodiment 2 comprises:
The assembly structure of a kind of compressor drum and axle, comprise rotor 21 and axle 22, rotor 21 is socketed on axle 22, also comprise the first draw-in groove 23 in the diameter of axle direction that is arranged on axle 22 and be arranged on the second draw-in groove 24 on the end face of rotor, in the first draw-in groove 23 and the second draw-in groove 24, be provided with key 27, the axle center 25 of axle is provided with internal thread, and axle center is provided with bolt 26.
Compared with traditional hot charging, assembling of the present utility model does not need heating, avoided due to the damage of heating element to compressor internal structure and miscellaneous part, and the quality of rotor can better be ensured; The tip of the axis is provided with draw-in groove, key and bolt, wherein key mapping is in draw-in groove inside, and draw-in groove is slotted along diametric(al), therefore key and pin can be realized the axial restraint of parts on shaft, prevent to move axially, bolt makes axially outer swelling after screwing in axle center place, effectively rotor is fastened on axle, the assembling that has ensured rotor and axle is firm, and the rotor of assembling and shaft clip tightness are better, and while guaranteeing compressor operation, rotor and axle keep good fit.
Key 27 and the first draw-in groove 23, the second draw-in groove 25 interference fit, key is squeezed in draw-in groove by external force, and key engages closely with draw-in groove, and key is further improved the axial and radial constraint power of rotor.
The first draw-in groove 23 is arranged on the middle part of axle, and the both sides axial wall of through-shaft 22; The fluting that does not radially run through outer wall that the second draw-in groove 24 is rotor 21.
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 assembly structure of a compressor drum and axle, comprise rotor (11) and axle (12), described rotor is socketed on axle, it is characterized in that: also comprise the first draw-in groove (13) in the diameter of axle direction that is arranged on described axle and be arranged on the second draw-in groove (14) on the end face of described rotor, in described the first draw-in groove and the second draw-in groove, be provided with pin key (17), the axle center (15) of described axle is provided with internal thread, and described axle center is provided with bolt (16).
2. the assembly structure of compressor drum according to claim 1 and axle, is characterized in that: described pin key is with the first draw-in groove, the second draw-in groove interference fit or excessively coordinate.
3. the assembly structure of compressor drum according to claim 2 and axle, is characterized in that: the both sides axial wall of described the first draw-in groove through-shaft.
4. the assembly structure of compressor drum according to claim 2 and axle, is characterized in that: the radially fluting that described the second draw-in groove is rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239493.XU CN203809303U (en) | 2014-05-12 | 2014-05-12 | Assembly structure of rotor and shaft of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420239493.XU CN203809303U (en) | 2014-05-12 | 2014-05-12 | Assembly structure of rotor and shaft of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203809303U true CN203809303U (en) | 2014-09-03 |
Family
ID=51448061
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420239493.XU Expired - Lifetime CN203809303U (en) | 2014-05-12 | 2014-05-12 | Assembly structure of rotor and shaft of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203809303U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358703A (en) * | 2014-11-13 | 2015-02-18 | 香志光 | Assembly structure for shaft and rotor fit for cold assembling |
-
2014
- 2014-05-12 CN CN201420239493.XU patent/CN203809303U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358703A (en) * | 2014-11-13 | 2015-02-18 | 香志光 | Assembly structure for shaft and rotor fit for cold assembling |
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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: 20140903 |