CN204041531U - The connecting structure of centrifugal compressor high speed gear shaft and impeller - Google Patents
The connecting structure of centrifugal compressor high speed gear shaft and impeller Download PDFInfo
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- CN204041531U CN204041531U CN201420505709.2U CN201420505709U CN204041531U CN 204041531 U CN204041531 U CN 204041531U CN 201420505709 U CN201420505709 U CN 201420505709U CN 204041531 U CN204041531 U CN 204041531U
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Abstract
The utility model discloses the connecting structure of a kind of centrifugal compressor high speed gear shaft and impeller, comprise high speed gear shaft, be arranged on the impeller of this high speed gear shaft impeller end and connect the stay-bolt of this high speed gear shaft and impeller, stay-bolt adopts stud structure, high speed gear shaft impeller end is provided with an Axis Tripod, the respective end of impeller is provided with a delthyrium, impeller is arranged on the impeller end of high speed gear shaft by Axis Tripod with coordinating of delthyrium, a positioning hole is had at high speed gear shaft impeller end center, a through hole is had in impeller central, one end of stay-bolt is inserted in positioning hole and is also threaded with it, the other end of stay-bolt is threaded with a locking nut through through hole, locking nut controls impeller axially locating on high speed gear shaft impeller end.The utility model structure is simple, convenient disassembly, transmitting torque are large, reduces blank weight, decreases processing and heat treatment expense, improves the stock utilization of impeller, reduces manufacturing cost.
Description
Technical field
The utility model relates to centrifugal compressor field, particularly relates to the connecting structure of a kind of centrifugal compressor high speed gear shaft and impeller.
Background technique
Multi-shaft centrifugal compressor is high-speed rotating machine, one or more gear shaft is driven to rotate by a Large Gear Shaft During, each impeller is installed on the termination of gear shaft, because rotating speed at different levels is relatively high, require steady in a long-term operation, in addition current each enterprise controls more and more tighter to cost of production, therefore multi-shaft centrifugal compressor rotating shaft and impeller connect requires safe, reliably, be convenient to dismounting and require that cost of production is low simultaneously.
At present, the connecting mode of Centrufugal compressor impeller and high speed gear shaft mainly contains: one, hot jacket technology, and as shown in Figure 3, it is the method utilizing interference, makes impeller hot jacket at high gear the tip of the axis; Two, impeller band Axis Tripod technology, as shown in Figure 4, wherein impeller end is one section of Axis Tripod, and high gear axial end is one section of delthyrium, triangle shaft/bore is axially cylinder, and impeller coordinates to be arranged on after on high speed gear shaft with delthyrium by Axis Tripod and is screwed.
The former is owing to adopting interference design, and the size of magnitude of interference is relevant with the size of transmitted power, rotating speed, axle, and during hot jacket, because high temperature may make rotor have certain distortion, simultaneously because multi-shaft compressor physical dimension is comparatively compact, hot jacket dismounting is very inconvenient; The latter, due to impeller being designed to Axis Tripod, makes impeller shaft to longer dimension, and this just makes the blank cost of impeller, and processing cost improves greatly, the impeller very high for material cost per unit, and axial dimension is longer, and stock utilization is lower, cost is higher.
Model utility content
The purpose of this utility model is to provide one can reduce impeller blank weight, reduces processing and heat treatment expense, improves the stock utilization of impeller, reduces the centrifugal compressor high speed gear shaft of manufacturing cost and the connecting structure of impeller.
This centrifugal compressor high speed gear shaft that the utility model provides and the connecting structure of impeller, comprise high speed gear shaft, be arranged on the impeller of this high speed gear shaft impeller end and connect the stay-bolt of this high speed gear shaft and impeller, described stay-bolt adopts stud structure, described high speed gear shaft impeller end is provided with an Axis Tripod, the respective end of described impeller is provided with a delthyrium, described impeller is arranged on the impeller end of high speed gear shaft by Axis Tripod with coordinating of delthyrium, a positioning hole is had at described high speed gear shaft impeller end center, a through hole is had in described impeller central, one end of described stay-bolt is inserted in positioning hole and is also threaded with it, the other end of described stay-bolt is threaded with a locking nut through through hole, described locking nut controls impeller axially locating on high speed gear shaft impeller end.
Described Axis Tripod and delthyrium form by three sections of circular arcs.
For making the utility model impeller have self-locking character with coordinating of high speed gear shaft, stability when improving its High Rotation Speed and reliability, and be convenient to processing, inspection, the longitudinal section of described Axis Tripod and delthyrium is all frustoconic shape.
For making radial location of the present utility model more accurate, the stay-bolt connected is provided with a location cylindrical, the radial location of this location cylindrical control impeller identical with described through-hole diameter with described locking nut.
For convenience of processing of the present utility model, inspection and dismounting, the impeller end face connected with described locking nut evenly has some dismounting technique screws.
Compared with prior art, the utility model have several under a little:
1, by arranging delthyrium on impeller, high speed gear shaft arranging corresponding Axis Tripod, solving the problem that impeller axial dimension is comparatively large, blank cost is high, work efficiency is low.
2, by adopting the stay-bolt of stud structure, make its one end and high speed gear shaft scyewed joint, impeller is fixed on high speed gear shaft by locking nut by the other end.
The utility model structure is simple, convenient disassembly, transmitting torque are large, reduces impeller axial dimension, impeller blank weight is reduced, and decreases processing and heat treatment expense, improves the stock utilization of impeller, reduces manufacturing cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that Figure 1A-A locates broken section structure for amplifying schematic diagram.
Fig. 3 is the structural representation one of prior art.
Fig. 4 is the structural representation two of prior art.
Fig. 5 is that the utility model hub disk is got the raw materials ready forging structural representation.
Fig. 6 is that Fig. 4 prior art hub disk is got the raw materials ready forging structural representation.
Embodiment
As can be seen from Fig. 1 and Fig. 2, the connecting structure of this centrifugal compressor high speed gear shaft of the utility model and impeller, comprise high speed gear shaft 1, be arranged on this high speed gear shaft impeller end impeller 2 and and connect the stay-bolt 3 of this high speed gear shaft and impeller, wherein stay-bolt 3 adopts stud structure, high speed gear shaft 1 impeller end is provided with an Axis Tripod be made up of three sections of circular arcs 11, the respective end of impeller 2 is provided with a delthyrium be made up of three sections of circular arcs 21, impeller 2 to be coordinated with Axis Tripod 11 by delthyrium 21 be arranged on high speed gear shaft 1 impeller end on, a positioning hole 12 is had at high speed gear shaft 1 impeller end center, a through hole 22 is had at impeller 2 center, one end of stay-bolt 3 is inserted in positioning hole 12 and is also threaded with it, the other end of this stay-bolt 3 is threaded with a locking nut 4 through through hole 22, the stay-bolt 3 that locking nut 4 is locked at impeller 2 side controls impeller 2 axially locating on the impeller end of high speed gear shaft 1.
It can also be seen that from Fig. 1, the longitudinal section of the utility model Axis Tripod 11 and delthyrium 21 is all frustoconic shape, the stay-bolt 3 connected with locking nut 4 is provided with a location cylindrical 31, the radial location of this location cylindrical 31 control impeller 2 identical with through hole 22 diameter, the end face of the impeller 2 connected with locking nut 4 evenly has some dismounting technique screws 23.
As can be seen from Fig. 5 and Fig. 6, when processing with size impeller, hub disk of the present utility model forging ' s block dimension of getting the raw materials ready will be far smaller than the hub disk of prior art in Fig. 4 and to get the raw materials ready forging ' s block dimension, thus reduces impeller blank cost, improves work efficiency.
Claims (5)
1. the connecting structure of a centrifugal compressor high speed gear shaft and impeller, comprise high speed gear shaft, be arranged on the impeller of this high speed gear shaft impeller end and connect the stay-bolt of this high speed gear shaft and impeller, it is characterized in that: described stay-bolt adopts stud structure, described high speed gear shaft impeller end is provided with an Axis Tripod, the respective end of described impeller is provided with a delthyrium, described impeller is arranged on the impeller end of high speed gear shaft by Axis Tripod with coordinating of delthyrium, a positioning hole is had at described high speed gear shaft impeller end center, a through hole is had in described impeller central, one end of described stay-bolt is inserted in positioning hole and is also threaded with it, the other end of described stay-bolt is threaded with a locking nut through through hole, described locking nut controls impeller axially locating on high speed gear shaft impeller end.
2. the connecting structure of centrifugal compressor high speed gear shaft according to claim 1 and impeller, is characterized in that: described Axis Tripod and delthyrium form by three sections of circular arcs.
3. the connecting structure of centrifugal compressor high speed gear shaft according to claim 1 and impeller, is characterized in that: the longitudinal section of described Axis Tripod and delthyrium is all frustoconic shape.
4. the connecting structure of centrifugal compressor high speed gear shaft according to claim 1 and impeller, it is characterized in that: on the stay-bolt connected with described locking nut, be provided with a location cylindrical, the radial location of this location cylindrical control impeller identical with described through-hole diameter.
5. the connecting structure of centrifugal compressor high speed gear shaft according to claim 1 and impeller, is characterized in that: on the impeller end face connected with described locking nut, evenly have some dismounting technique screws.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420505709.2U CN204041531U (en) | 2014-09-04 | 2014-09-04 | The connecting structure of centrifugal compressor high speed gear shaft and impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420505709.2U CN204041531U (en) | 2014-09-04 | 2014-09-04 | The connecting structure of centrifugal compressor high speed gear shaft and impeller |
Publications (1)
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| CN204041531U true CN204041531U (en) | 2014-12-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420505709.2U Active CN204041531U (en) | 2014-09-04 | 2014-09-04 | The connecting structure of centrifugal compressor high speed gear shaft and impeller |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090109A (en) * | 2015-09-11 | 2015-11-25 | 南京磁谷科技有限公司 | Impeller assembly of high-speed centrifugal type air blower |
| CN105604979A (en) * | 2015-12-21 | 2016-05-25 | 重庆美的通用制冷设备有限公司 | Two-stage impeller assembly and centrifugal compressor provided with same |
| CN108678813A (en) * | 2018-06-26 | 2018-10-19 | 哈尔滨电气股份有限公司 | A kind of rod fastening rotor with self-locking nut device |
| CN109555723A (en) * | 2018-11-16 | 2019-04-02 | 襄阳五二五泵业有限公司 | A kind of detachable impeller end enclosure structure for excavating pump |
| CN109882428A (en) * | 2019-04-18 | 2019-06-14 | 西安联创分布式可再生能源研究院有限公司 | A kind of energy recovery type Driven by Coaxial centrifugal blower group |
| CN109915410A (en) * | 2019-04-18 | 2019-06-21 | 西安联创分布式可再生能源研究院有限公司 | A kind of centrifugal blower multi-stage impeller mounting structure |
| WO2020134432A1 (en) * | 2018-12-25 | 2020-07-02 | 珠海格力电器股份有限公司 | Compressor rotor assembly, compressor and refrigerant circulation system |
| CN111536055A (en) * | 2020-04-30 | 2020-08-14 | 北京动力机械研究所 | High-efficient compressor arrangement of inert gas mixture bearing |
| CN112392547A (en) * | 2020-11-30 | 2021-02-23 | 中国航发动力股份有限公司 | Rotor connecting structure of rotary machine |
| CN112594200A (en) * | 2020-12-02 | 2021-04-02 | 浙江上风高科专风实业股份有限公司 | Impeller locking structure of magnetic suspension air-blower |
| CN114151378A (en) * | 2021-11-18 | 2022-03-08 | 北京航天石化技术装备工程有限公司 | Shafting assembly structure |
-
2014
- 2014-09-04 CN CN201420505709.2U patent/CN204041531U/en active Active
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105090109A (en) * | 2015-09-11 | 2015-11-25 | 南京磁谷科技有限公司 | Impeller assembly of high-speed centrifugal type air blower |
| CN105604979A (en) * | 2015-12-21 | 2016-05-25 | 重庆美的通用制冷设备有限公司 | Two-stage impeller assembly and centrifugal compressor provided with same |
| CN108678813A (en) * | 2018-06-26 | 2018-10-19 | 哈尔滨电气股份有限公司 | A kind of rod fastening rotor with self-locking nut device |
| CN108678813B (en) * | 2018-06-26 | 2024-01-09 | 哈尔滨电气股份有限公司 | Pull rod rotor with self-locking nut device |
| CN109555723A (en) * | 2018-11-16 | 2019-04-02 | 襄阳五二五泵业有限公司 | A kind of detachable impeller end enclosure structure for excavating pump |
| WO2020134432A1 (en) * | 2018-12-25 | 2020-07-02 | 珠海格力电器股份有限公司 | Compressor rotor assembly, compressor and refrigerant circulation system |
| CN109915410A (en) * | 2019-04-18 | 2019-06-21 | 西安联创分布式可再生能源研究院有限公司 | A kind of centrifugal blower multi-stage impeller mounting structure |
| CN109882428A (en) * | 2019-04-18 | 2019-06-14 | 西安联创分布式可再生能源研究院有限公司 | A kind of energy recovery type Driven by Coaxial centrifugal blower group |
| CN111536055A (en) * | 2020-04-30 | 2020-08-14 | 北京动力机械研究所 | High-efficient compressor arrangement of inert gas mixture bearing |
| CN112392547A (en) * | 2020-11-30 | 2021-02-23 | 中国航发动力股份有限公司 | Rotor connecting structure of rotary machine |
| CN112594200A (en) * | 2020-12-02 | 2021-04-02 | 浙江上风高科专风实业股份有限公司 | Impeller locking structure of magnetic suspension air-blower |
| CN114151378A (en) * | 2021-11-18 | 2022-03-08 | 北京航天石化技术装备工程有限公司 | Shafting assembly structure |
| CN114151378B (en) * | 2021-11-18 | 2023-12-12 | 北京航天石化技术装备工程有限公司 | Shafting assembly structure |
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