CN202833290U - Transmission mechanism of two-stage centrifugal compressor - Google Patents
Transmission mechanism of two-stage centrifugal compressor Download PDFInfo
- Publication number
- CN202833290U CN202833290U CN 201220352633 CN201220352633U CN202833290U CN 202833290 U CN202833290 U CN 202833290U CN 201220352633 CN201220352633 CN 201220352633 CN 201220352633 U CN201220352633 U CN 201220352633U CN 202833290 U CN202833290 U CN 202833290U
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- centrifugal compressor
- stage
- shaft
- impeller
- transmission mechanism
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Abstract
The utility model relates to a transmission mechanism of a two-stage centrifugal compressor. The transmission mechanism of the two-stage centrifugal compressor comprises a motor, a low-speed shaft, a driving gear, a high-speed gear shaft, a first-stage vane wheel, a second-stage vane wheel and the like. The low-speed shaft is connected with the driving gear through a key. The driving gear is meshed with a gear on the high-speed gear shaft. The transmission mechanism of the two-stage centrifugal compressor is characterized in that one end of the high-speed gear shaft and the first-stage vane wheel are fixed through bolts, the other end of the high-speed gear shaft and the second-stage vane wheel are fixed through bolts and the first-stage vane wheel and the second-stage vane wheel are symmetrically arranged. The transmission mechanism of the two-stage centrifugal compressor is reasonable and compact in structure, number of parts is greatly reduced, assembly accuracy and gear transmission accuracy are improved and finally transmission efficiency is improved. Due to the fact that the two vane wheels are symmetrically arranged, pneumatic axial thrust borne by the two vane wheels can be counteracted to a certain degree and load of a thrust bearing is relieved. Due to the transmission mechanism which is designed reasonably, production cost of the two-stage centrifugal compressor is greatly reduced.
Description
Technical field
The utility model relates to a kind of driving mechanism of secondary centrifugal compressor, and specifically a kind of secondary centrifugal compressor that is applied to makes more reasonable, the compact gear drive of its structure, belongs to the mechanical structure technical field.
Background technique
The rotation of the motor in the centrifugal compressor makes impeller obtain higher rotating speed by the speedup of gear drive.The gear drive of common secondary centrifugal compressor generally comprises the parts such as driving gear, lower velocity shaft, thrust-bearing, radial bearing, high speed gear shaft and motor.Because motor need to drive two impellers, so generally adopt the layout of two high speed shafts of a lower velocity shaft.Driving gear just needs to drive two high speed gear shafts like this, radial bearing not only, and thrust bearing increases, and during the bearing operation, also needs a large amount of lubricant oil to be lubricated, and makes lubricant passage way system more complicated.The driving mechanism number of parts is many can to have influence on assembly precision, causes the reduction of gear-driven accuracy, thereby transmission efficiency is had a negative impact.The driving mechanism complex structure that designs like this, bulky, product cost is high.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, thus provide a kind of simple and reasonable, number of spare parts is few, fabricating cost is low, gear-driven precision is high, the driving mechanism of good stability, secondary centrifugal compressor that transmission efficiency is high.
According to the scheme that the utility model provides, the driving mechanism of secondary centrifugal compressor comprises: motor, lower velocity shaft, driving gear, high speed gear shaft, first order impeller and second level impeller etc.Described lower velocity shaft is connected by key with driving gear; Gear engagement on driving gear and the high speed gear shaft; Feature is: at an end of high speed gear shaft with the fixing first order impeller of bolt, at the other end of high speed gear shaft with the fixing second level impeller of bolt.
As improvement of the present utility model, described first order impeller and second level impeller are arranged symmetrically with.
As improvement of the present utility model, be respectively equipped with 6-12 primary blades on described first order impeller and the second level impeller, be provided with a minute blade in the middle of every two adjacent primary blades.
As improvement of the present utility model, described first order impeller and second level impeller adopt respectively full 3 d impeller, and adopt aluminum alloy material to make.
Compared with the prior art the utility model has the following advantages:
The utility model structure is more reasonable, compact, when having saved a high speed shaft, has also saved two radial bearings, and a thrust bearing has reduced number of parts greatly, has improved assembly precision and gear-driven precision, and transmission efficiency is promoted.During compressor operating, the required lubricants capacity of bearing also significantly reduces, and has simplified lubricant passage way system.On the other hand, two impellers are arranged symmetrically with, and both are offset to a certain extent suffered pneumatic end thrust, thus the load that alleviates thrust bearing.By the driving mechanism of this reasonable Arrangement, so that the product cost of two stage compressor reduces greatly.
Description of drawings
Fig. 1 is the utility model structural representation.
Embodiment
According to the scheme that the utility model provides, the driving mechanism of secondary centrifugal compressor comprises: motor 1, lower velocity shaft 2, driving gear 3, high speed gear shaft 4, first order impeller 5 and second level impeller 6 etc.Described lower velocity shaft 2 and driving gear 3 are connected by key.Gear engagement on driving gear 3 and the high speed gear shaft 4.At an end of high speed gear shaft 4 with the fixing first order impeller 5 of bolt, at the other end of high speed gear shaft 4 with the fixing second level impeller 6 of bolt.
Be respectively equipped with 6-12 primary blades on described first order impeller 5 and the second level impeller 6, be provided with a minute blade in the middle of every two adjacent primary blades.
Described first order impeller 5 and second level impeller 6 adopt respectively efficient full 3 d impeller, and adopt aluminum alloy material to make.
Motor 1 rotarily drives lower velocity shaft 2, then is delivered to high speed gear shaft 4 by driving gear 3, by gear up so that the first order impeller 5 that is fastened on high speed gear shaft 4 two ends and second level impeller 6 High Rotation Speed all.Such structure is more reasonable, compact, when having saved a high speed gear shaft, has also saved two radial bearings, and a thrust bearing has reduced number of parts greatly, has improved assembly precision and gear-driven precision, and transmission efficiency is promoted.During compressor operating, the required lubricants capacity of bearing also significantly reduces, and has simplified lubricant passage way system.On the other hand, two impellers are arranged symmetrically with, and both are offset to a certain extent suffered pneumatic end thrust, thus the load that alleviates thrust bearing.By the driving mechanism of this reasonable Arrangement, so that the product cost of two stage compressor reduces greatly.
Claims (4)
1. the driving mechanism of secondary centrifugal compressor comprises motor (1), lower velocity shaft (2), driving gear (3), high speed gear shaft (4), and described lower velocity shaft (2) is connected by key with driving gear (3); It is characterized in that: the gear engagement on described driving gear (3) and the high speed gear shaft (4); At an end of high speed gear shaft (4) with the fixing first order impeller (5) of bolt, at the other end of high speed gear shaft (4) with the fixing second level impeller (6) of bolt.
2. the driving mechanism of secondary centrifugal compressor as claimed in claim 1, it is characterized in that: described first order impeller (5) and second level impeller (6) are arranged symmetrically with.
3. the driving mechanism of secondary centrifugal compressor as claimed in claim 1 is characterized in that: be respectively equipped with 6-12 primary blades on described first order impeller (5) and the second level impeller (6), be provided with a minute blade in the middle of every two adjacent primary blades.
4. the driving mechanism of secondary centrifugal compressor as claimed in claim 1, it is characterized in that: described first order impeller (5) and second level impeller (6) adopt respectively full 3 d impeller, and adopt aluminum alloy material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220352633 CN202833290U (en) | 2012-07-19 | 2012-07-19 | Transmission mechanism of two-stage centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220352633 CN202833290U (en) | 2012-07-19 | 2012-07-19 | Transmission mechanism of two-stage centrifugal compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202833290U true CN202833290U (en) | 2013-03-27 |
Family
ID=47945008
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220352633 Expired - Lifetime CN202833290U (en) | 2012-07-19 | 2012-07-19 | Transmission mechanism of two-stage centrifugal compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202833290U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748325A (en) * | 2012-07-19 | 2012-10-24 | 无锡杰尔压缩机有限公司 | Transmission mechanism of two-stage centrifugal compressor |
-
2012
- 2012-07-19 CN CN 201220352633 patent/CN202833290U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748325A (en) * | 2012-07-19 | 2012-10-24 | 无锡杰尔压缩机有限公司 | Transmission mechanism of two-stage centrifugal compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 214101 No. 38, Qian Lian Road, Xishan Economic Development Zone, Xishan District, Jiangsu, Wuxi Patentee after: GL-TURBO LLC Address before: 214192 Jiangsu Province, Wuxi city Xishan District of Xishan Economic Development Zone in three Furong Road No. 99 building six room 507 zuiun Patentee before: GL-TURBO Compressor, LLC |
|
| CX01 | Expiry of patent term |
Granted publication date: 20130327 |
|
| CX01 | Expiry of patent term |