CN202251494U - Shaft hole matching self expansion connecting structure of permanent magnet synchronous motor rotor and screw compressor rotor - Google Patents
Shaft hole matching self expansion connecting structure of permanent magnet synchronous motor rotor and screw compressor rotor Download PDFInfo
- Publication number
- CN202251494U CN202251494U CN2011203264624U CN201120326462U CN202251494U CN 202251494 U CN202251494 U CN 202251494U CN 2011203264624 U CN2011203264624 U CN 2011203264624U CN 201120326462 U CN201120326462 U CN 201120326462U CN 202251494 U CN202251494 U CN 202251494U
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- conic sleeve
- hole
- cover
- rotor
- hole workpiece
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Abstract
The utility model relates to a shaft hole matching self expansion connecting structure of a permanent magnet synchronous motor rotor and a screw compressor rotor, which comprises a hole workpiece, a shaft, an inner conic sleeve and an outer conic sleeve. A gap is respectively arranged on the inner conic sleeve and an outer conic sleeve, the inner diameter of the inner conic sleeve is matched with the shaft, and the outer diameter of the outer conic sleeve is matched with the inner diameter of the hole workpiece. The inner conic sleeve is matched with the outer conic sleeve through two conic surfaces and is locked with the hole workpiece through four bolts evenly arranged on the hole workpiece and located in the outer conic sleeve. Requirements for size accuracy of shaft and hole parts are lowered, and manufacture cost is reduced. A self expansion type assembly is utilized, thereby avoiding gravity knock on the parts during assembly and ensuring accuracy of the parts. A convenient assembly structure has few requirements for assembly space, thereby expanding using space and effectively reducing using cost. The dismounting is simple, thereby avoiding cost during dismounting to a large extend.
Description
Technical field
The utility model relates to the axis hole connecting structure of a kind of permanent-magnetic synchronous motor rotor and rotor of helical lobe compressor, relates in particular to axis hole and cooperates connecting structure.
Background technique
Visible by Fig. 3: axis hole of the prior art cooperates connecting structure (among the figure: rotor 11; Gland 12, rotor of helical lobe compressor 13, clamping bolt 14) owing to be to adopt external diameter tolerance interference fit in the axis hole; Higher to axle and aperture size required precision, improved manufacture cost.The time need gravity to knock in assembling, cause workpiece to damage easily or damage, the assembling back occurs causing vibrations to increase because of concentricity is bad easily.When workpiece is disassembled, need special tool, give to disassemble and bring a lot of unfavorable factors, the space that needs is bigger, disassembles to occur easily in the process causing the cost waste because of the misoperation part of damage.
Summary of the invention
The utility model technical issues that need to address have provided a kind of permanent-magnetic synchronous motor rotor and have cooperated from the expansion set connecting structure with the axis hole of rotor of helical lobe compressor, are intended to address the above problem.
In order to solve the problems of the technologies described above, the utility model is realized through following technological scheme:
The utility model comprises: hole workpiece and axle; Also comprise: inner conical cover and external conical shape cover; Described inner conical cover and external conical shape put all has a clearance gap; Described inner conical cover internal diameter cooperates with axle, and described external conical shape cover external diameter cooperates with the hole workpiece internal diameter; Inner conical cover cooperates through two conical surfaces with the external conical shape cover, is placed in 4 bolt and the hole workpiece of external conical shape in overlapping on the hole workpiece and locks through being evenly distributed on.
Compared with prior art, the beneficial effect of the utility model is: axle, hole parts size precision are required to reduce, effectively reduce manufacture cost; Use the assembling of sub-expansion, avoided that the gravity to component knocks in the assembly process, guaranteed the component precision, because assembly structure easily, assembly space is required less, expanded usage space, effectively reduced user cost; Disassemble simply, largely avoided disassembling process cost.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the plan view of Fig. 1;
Fig. 3 is existing technology axis, hole cooperating structure schematic representation;
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail:
Visible by Fig. 1, Fig. 2: the utility model comprises: hole workpiece 5 and axle 3; Also comprise: inner conical cover 1 and external conical shape cover 2; Described inner conical cover 1 overlaps on 2 with external conical shape a clearance gap is all arranged; Described inner conical cover internal diameter cooperates with axle 3, and described external conical shape cover external diameter cooperates with hole workpiece 5 internal diameters; Inner conical cover 1 and external conical shape cover 2 cooperate through two conical surfaces, lock through being evenly distributed on 4 bolts 4 and the hole workpiece 5 that are placed on the hole workpiece 5 in the external conical shape cover 2.
In the utility model inner conical cover 1 and external conical shape cover 2 be engaged in bolt 4 lockings the time; Inner conical cover 1 dwindles spacing uniformly with external conical shape cover 2; Under the effect of two conical surface mutual extrusion power, impel the internal diameter of inner conical cover 1 and the external diameter of external conical shape cover 2 to expand simultaneously, thereby realize a hole workpiece 5 and 3 is tightly fixed.
Claims (1)
1. a permanent-magnetic synchronous motor rotor cooperates from the expansion set connecting structure with the axis hole of rotor of helical lobe compressor, comprising: hole workpiece and axle; It is characterized in that also comprising: inner conical cover and external conical shape cover; Described inner conical cover and external conical shape put all has a clearance gap; Described inner conical cover internal diameter cooperates with axle, and described external conical shape cover external diameter cooperates with the hole workpiece internal diameter; Inner conical cover cooperates through two conical surfaces with the external conical shape cover, is placed in 4 bolt and the hole workpiece of external conical shape in overlapping on the hole workpiece and locks through being evenly distributed on.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203264624U CN202251494U (en) | 2011-09-01 | 2011-09-01 | Shaft hole matching self expansion connecting structure of permanent magnet synchronous motor rotor and screw compressor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203264624U CN202251494U (en) | 2011-09-01 | 2011-09-01 | Shaft hole matching self expansion connecting structure of permanent magnet synchronous motor rotor and screw compressor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202251494U true CN202251494U (en) | 2012-05-30 |
Family
ID=46112742
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203264624U Expired - Fee Related CN202251494U (en) | 2011-09-01 | 2011-09-01 | Shaft hole matching self expansion connecting structure of permanent magnet synchronous motor rotor and screw compressor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202251494U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937148A (en) * | 2012-11-16 | 2013-02-20 | 张新辉 | Tensioning connection sleeve for rod shearing machine |
| CN105782253A (en) * | 2014-12-26 | 2016-07-20 | 常州维能达精机有限公司 | Temperature variation synchronous compensation shaft system |
| CN107939849A (en) * | 2017-10-10 | 2018-04-20 | 大连钰霖电机有限公司 | Expansion sleeve and motor |
| CN110549300A (en) * | 2019-07-26 | 2019-12-10 | 深圳供电局有限公司 | electric rotary operating tool |
| WO2020087385A1 (en) * | 2018-10-31 | 2020-05-07 | 中车山东机车车辆有限公司 | Freight train chassis and freight train |
-
2011
- 2011-09-01 CN CN2011203264624U patent/CN202251494U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102937148A (en) * | 2012-11-16 | 2013-02-20 | 张新辉 | Tensioning connection sleeve for rod shearing machine |
| CN105782253A (en) * | 2014-12-26 | 2016-07-20 | 常州维能达精机有限公司 | Temperature variation synchronous compensation shaft system |
| CN107939849A (en) * | 2017-10-10 | 2018-04-20 | 大连钰霖电机有限公司 | Expansion sleeve and motor |
| WO2020087385A1 (en) * | 2018-10-31 | 2020-05-07 | 中车山东机车车辆有限公司 | Freight train chassis and freight train |
| CN110549300A (en) * | 2019-07-26 | 2019-12-10 | 深圳供电局有限公司 | electric rotary operating tool |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20170901 |