CN215370568U - Gas turbine main shaft compresses tightly locking structure - Google Patents
Gas turbine main shaft compresses tightly locking structure Download PDFInfo
- Publication number
- CN215370568U CN215370568U CN202121081465.6U CN202121081465U CN215370568U CN 215370568 U CN215370568 U CN 215370568U CN 202121081465 U CN202121081465 U CN 202121081465U CN 215370568 U CN215370568 U CN 215370568U
- Authority
- CN
- China
- Prior art keywords
- shaft
- gas turbine
- inner shaft
- main shaft
- locking structure
- 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.)
- Active
Links
Images
Landscapes
- Turbine Rotor Nozzle Sealing (AREA)
Abstract
The utility model provides a gas turbine main shaft compression locking structure, which consists of an outer shaft, an inner shaft and a locking nut, and is characterized in that: one end of the outer shaft is provided with end face teeth connected with the inner shaft, the other end of the outer shaft is provided with a tapered hole face, after the inner shaft is inserted into the outer shaft, one end of the inner shaft is connected with the end face teeth on the outer shaft, and the other end of the inner shaft is tightly pressed and locked through a locking nut. The high-speed rotating speed reducer has the advantages of high reliability, simple structure, fewer parts and excellent reliability under the working environment with high rotating speed.
Description
Technical Field
The utility model belongs to the field of gas turbine industry, and particularly relates to a compression locking structure of a gas turbine main shaft.
Background
A compressor and a turbine of a gas turbine require easy disassembly and assembly, and for this reason, a main shaft of the gas turbine is generally composed of an outer shaft and an inner shaft, and the compressor and the turbine are mounted on the outer shaft and the inner shaft, respectively. The main shaft works in the harsh environments of vibration, high rotating speed, high temperature and the like for a long time, so the inner shaft and the outer shaft are strictly concentric. At the same time, a large torque is transmitted between the inner shaft and the outer shaft in the main shaft, and therefore, a very reliable locking structure is required for the main shaft.
Disclosure of Invention
The utility model aims to provide a compression locking structure of a main shaft of a gas turbine, which has a simple and firm structure.
The utility model has the advantages of convenient installation, high reliability and simple structure.
The technical scheme of the utility model is as follows: the utility model provides a gas turbine main shaft compresses tightly locking structure comprises outer axle, interior axle, lock nut which characterized in that: one end of the outer shaft is provided with end face teeth connected with the inner shaft, the other end of the outer shaft is provided with a tapered hole face, after the inner shaft is inserted into the outer shaft, one end of the inner shaft is connected with the end face teeth on the outer shaft, and the other end of the inner shaft is tightly pressed and locked through a locking nut.
One end of the inner shaft is provided with end face teeth connected with the outer shaft, the other end of the inner shaft is provided with threads connected with the locking nut, and the middle shaft body is in clearance fit with the cavity of the outer shaft.
The locking nut is arranged on the inner shaft, and the nut is processed into a conical surface and matched with the outer shaft.
The utility model has the advantages of convenient installation, high reliability and simple structure.
Drawings
Fig. 1 is a schematic view of a spindle compression locking structure of the present invention.
In the figure: 1. outer axle, 2, inner axle, 3, lock nut.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
The utility model discloses a compression locking structure of a main shaft of a gas turbine, which mainly comprises an outer shaft 1, an inner shaft 2 and a locking nut 3, and is shown in the attached figure 1.
The outer shaft 1 and the inner shaft 2 are in clearance fit at the middle part, and one end of the outer shaft is matched with the end face teeth, so that torque can be transmitted and the inner shaft 2 can be limited to move in the radial direction.
One end of the inner shaft 2 is in threaded fit with the lock nut 3, and the axial and radial movement of the inner shaft 2 can be limited after the inner shaft is screwed down.
The locking nut 3 and one end of the outer shaft 1 have conical surfaces with the same taper, the locking nut 3 is screwed to abut against the outer shaft 1, and the outer hexagonal part of the installed locking nut 3 is exposed out of the outer shaft 1.
When the tool is installed, the special tool is used for pressing the outer shaft 1 and simultaneously tightening the inner shaft 2, so that the outer shaft 1 is tightly contacted with the inner shaft 2 and pressure is generated between the contact surfaces of the end face teeth, at the moment, the locking nut 3 is installed and screwed tightly by adding torque, and after the tool is loosened, the outer shaft 1 and the inner shaft 2 are firmly locked.
Practice proves that the utility model has very simple structure and high stability, can effectively limit the axial and radial movement of the inner shaft 2 by using the end face teeth and the conical surface locking nut 3, can transmit heavy-load torque, and is particularly suitable for being used in severe environments of gas turbines under vibration and high rotating speed.
Claims (3)
1. The utility model provides a gas turbine main shaft compresses tightly locking structure comprises outer axle (1), interior axle (2), lock nut (3), its characterized in that: outer axle (1) one end be equipped with the terminal surface tooth that interior axle (2) are connected, the other end is equipped with the taper hole face, interior axle (2) insert outer axle (1) after, one end is connected through the terminal surface tooth on outer axle (1), the other end compresses tightly the lock through lock nut (3).
2. The gas turbine main shaft pressing and locking structure according to claim 1, wherein: one end of the inner shaft (2) is provided with end face teeth connected with the outer shaft (1), the other end of the inner shaft is provided with threads connected with the locking nut (3), and the middle shaft body is in clearance fit with the cavity of the outer shaft (1).
3. The gas turbine main shaft pressing and locking structure according to claim 1, wherein: the locking nut (3) is arranged on the inner shaft (2), the nut is machined into a conical surface, and the outer shaft (1) is matched.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121081465.6U CN215370568U (en) | 2021-05-20 | 2021-05-20 | Gas turbine main shaft compresses tightly locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121081465.6U CN215370568U (en) | 2021-05-20 | 2021-05-20 | Gas turbine main shaft compresses tightly locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215370568U true CN215370568U (en) | 2021-12-31 |
Family
ID=79630722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121081465.6U Active CN215370568U (en) | 2021-05-20 | 2021-05-20 | Gas turbine main shaft compresses tightly locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215370568U (en) |
-
2021
- 2021-05-20 CN CN202121081465.6U patent/CN215370568U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102691576B (en) | Power transmission mechanism of gas compressor and turbine | |
| CN210769780U (en) | Anti-loose nut | |
| CN110318815B (en) | Ceramic rotor of closed-cycle turbine power generation system | |
| CN201108970Y (en) | Hydraulic buckling type tool fixture | |
| CN215370568U (en) | Gas turbine main shaft compresses tightly locking structure | |
| CN201554715U (en) | Hydraulic cylinder with split threaded guide sleeve | |
| CN209959668U (en) | Bolt for connecting gas compressor rotor and turbine shaft of gas turbine | |
| CN112377505A (en) | Self-locking nut structure of gas turbine rotor shaft | |
| CN110344892B (en) | Radial flow turbine power generation system integrated rotor and manufacturing process thereof | |
| CN107984193B (en) | Shaft-mounted speed reducer press-mounting tool | |
| CN110774205A (en) | Ball socket wrench | |
| CN216407395U (en) | Novel large gear ring butt-joint locking device | |
| CN212079674U (en) | Compressor with high reliability of bearing positioning | |
| CN210106381U (en) | Self-locking thread pair | |
| CN113187877A (en) | Axial force conical surface thrust structure for high-speed heavy-load helical gear transmission system | |
| CN202673453U (en) | Power transmitting mechanism for compressor and turbine | |
| CN113217521A (en) | Self-changing type lock nut | |
| CN108044566B (en) | Helicopter rotor shaft main bearing nut assembling method | |
| CN221074935U (en) | Round nut locking device for planetary reducer | |
| CN214196764U (en) | Novel connecting structure of centrifugal compressor impeller and power shaft | |
| CN218913513U (en) | Automatic locking device for axial and radial fixing of universal joint transmission shaft | |
| CN204493478U (en) | Expansion sleeve | |
| CN203272758U (en) | Contraction disc in wind driven generator gear case | |
| CN216922227U (en) | Connecting structure of turbine impeller and shaft | |
| CN221111662U (en) | Jig convenient for locking and fixing lock nut |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |