CN203146627U - Connection structure for crankshaft and motor shaft of compressor - Google Patents
Connection structure for crankshaft and motor shaft of compressor Download PDFInfo
- Publication number
- CN203146627U CN203146627U CN 201220733995 CN201220733995U CN203146627U CN 203146627 U CN203146627 U CN 203146627U CN 201220733995 CN201220733995 CN 201220733995 CN 201220733995 U CN201220733995 U CN 201220733995U CN 203146627 U CN203146627 U CN 203146627U
- Authority
- CN
- China
- Prior art keywords
- motor shaft
- sleeve
- expansion set
- crankshaft
- cover
- 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 - Fee Related
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- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
- Applications Or Details Of Rotary Compressors (AREA)
Abstract
The utility model discloses a connection structure for a crankshaft and a motor shaft of a compressor. The connection structure comprises the crankshaft, the motor shaft and a coupling, wherein the crankshaft and the motor shaft are sleeved with a first expansion sleeve and a second expansion sleeve respectively; the first expansion sleeve and the second expansion sleeve are arranged in inner holes of the coupling; the first expansion sleeve comprises an inner sleeve and an outer sleeve; circular-arc bulges are arranged on opposite surfaces of the inner sleeve and the outer sleeve radially; a concave sleeve matched with the circular-arc bulges is arranged between the inner sleeve and the outer sleeve; at least two screw holes are formed circumferentially and uniformly in the concave sleeve; a bolt is matched in each screw hole, and the head of each bolt is located outside the concave sleeve; and the structure of the second expansion sleeve is the same with that of the first expansion sleeve. The connection structure for the crankshaft and the motor shaft of the compressor is simple in structure and reliable in connection, key joint is not needed between the crankshaft and the motor shaft, and the performances of the crankshaft and the motor shaft are guaranteed.
Description
Technical field
The utility model relates to a kind of linkage structure, particularly relates to the structure that a kind of compressor crank shaft is connected with motor shaft.
Background technique
In the prior art, the common form by flange plate of the bent axle of compressor and motor shaft is connected, and perhaps at bent axle and motor shaft keyway is set, and connects by coupling.Therefore, existing linkage structure processing bothers, and also can cause damage to the performance of axle itself.
Therefore those skilled in the art are devoted to develop a kind of simple in structure, reliable compressor crank shaft motor shaft linkage structure of connection.
The model utility content
Because the above-mentioned defective of prior art, technical problem to be solved in the utility model provides a kind of simple in structure, reliable compressor crank shaft motor shaft linkage structure of connection.
For achieving the above object, the utility model provides a kind of compressor crank shaft motor shaft linkage structure, comprises bent axle, motor shaft and coupling; Be respectively installed with first expansion set and second expansion set on described bent axle and the motor shaft; Described first expansion set and second expansion set are arranged in the endoporus of described coupling;
Cover and overcoat in described first expansion set comprises; The opposing side of cover and overcoat radially is provided with circular-arc projection in described; Be provided with the recessed cover that matches with described circular arc projection between cover and the overcoat in described; Described recessed cover is along circumferentially being evenly equipped with at least two screws; Be combined with screw in each described screw; The head of described screw is positioned at the outside of described recessed cover;
The structure of described second expansion set is identical with the structure of first expansion set.
Preferable, the threaded line of the screw of described first expansion set and second expansion set all is arranged on the inner of recessed cover.
The beneficial effects of the utility model are: the utility model is simple in structure, connects reliably, and does not need that bent axle and motor shaft are carried out key and is connected, and has guaranteed the performance of bent axle and motor shaft.
Description of drawings
Fig. 1 is the structural representation of the utility model one embodiment.
Fig. 2 is the partial enlarged drawing at I place among Fig. 1.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As depicted in figs. 1 and 2, a kind of compressor crank shaft motor shaft linkage structure comprises bent axle 1, motor shaft 2 and coupling 3.Being respectively installed with first expansion set 4 and second expansion set, 5, the first expansion sets 4 and second expansion set 5 on bent axle 1 and the motor shaft 2 is arranged in the endoporus of coupling 3.
The structure of second expansion set 5 is identical with the structure of first expansion set 4.
Be screwed in the process of recessed cover screw at screw 4d, recessed cover is received to overstock and is produced micro-strain, because the concaveconvex structure of interior cover, recessed cover and overcoat, cover and overcoat are all received lateral extrusion in making, thereby cover and bent axle or motor shaft interference fit in making, overcoat and coupling interference fit, thus can realize transmission of power between motor shaft and the bent axle.
More than describe preferred embodiment of the present utility model in detail.Should be appreciated that those of ordinary skill in the art need not creative work and just can make many modifications and variations according to design of the present utility model.Therefore, all technician in the art comply with design of the present utility model on the basis of existing technology by the available technological scheme of logical analysis, reasoning, or a limited experiment, all should be in the determined protection domain by claims.
Claims (2)
1. a compressor crank shaft motor shaft linkage structure comprises bent axle (1), motor shaft (2) and coupling (3); It is characterized in that: be respectively installed with first expansion set (4) and second expansion set (5) on described bent axle (1) and the motor shaft (2); Described first expansion set (4) and second expansion set (5) are arranged in the endoporus of described coupling (3);
Described first expansion set (4) comprises interior cover (4a) and overcoat (4b); The opposing side of cover (4a) and overcoat (4b) radially is provided with circular-arc projection in described; Be provided with the recessed cover (4c) that matches with described circular arc projection between cover (4a) and the overcoat (4b) in described; Described recessed cover (4c) is along circumferentially being evenly equipped with at least two screws; Be combined with screw (4d) in each described screw; The head of described screw (4d) is positioned at the outside of described recessed cover (4c);
The structure of described second expansion set (5) is identical with the structure of first expansion set (4).
2. compressor crank shaft motor shaft linkage structure as claimed in claim 1, it is characterized in that: the threaded line of the screw of described first expansion set (4) and second expansion set (5) all is arranged on the inner of recessed cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220733995 CN203146627U (en) | 2012-12-27 | 2012-12-27 | Connection structure for crankshaft and motor shaft of compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220733995 CN203146627U (en) | 2012-12-27 | 2012-12-27 | Connection structure for crankshaft and motor shaft of compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203146627U true CN203146627U (en) | 2013-08-21 |
Family
ID=48974153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220733995 Expired - Fee Related CN203146627U (en) | 2012-12-27 | 2012-12-27 | Connection structure for crankshaft and motor shaft of compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203146627U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487060A (en) * | 2020-04-28 | 2020-08-04 | 隆鑫通用动力股份有限公司 | Adjustable engine distribution phase testing system |
-
2012
- 2012-12-27 CN CN 201220733995 patent/CN203146627U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487060A (en) * | 2020-04-28 | 2020-08-04 | 隆鑫通用动力股份有限公司 | Adjustable engine distribution phase testing system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130821 Termination date: 20141227 |
|
| EXPY | Termination of patent right or utility model |