CN201753698U - Adjustable transmission shaft - Google Patents
Adjustable transmission shaft Download PDFInfo
- Publication number
- CN201753698U CN201753698U CN2010202994502U CN201020299450U CN201753698U CN 201753698 U CN201753698 U CN 201753698U CN 2010202994502 U CN2010202994502 U CN 2010202994502U CN 201020299450 U CN201020299450 U CN 201020299450U CN 201753698 U CN201753698 U CN 201753698U
- Authority
- CN
- China
- Prior art keywords
- transmission shaft
- rigid coupling
- adjusting screw
- nut
- adjustable
- 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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Abstract
The utility model provides an adjustable transmission shaft which comprises a transmission shaft and a rigid coupling. The utility model is characterized in that: a matching surface between the lower end of the transmission shaft and the rigid coupling is a cylindrical surface; the bottom end of the transmission shaft is provided with an adjusting screw; the adjusting screw is provided in the rigid coupling; the diameter of the outer edge of adjusting screw is slightly larger than that of the rigid coupling; and the adjusting screw can be rotated. The axial position between the transmission shaft and the rigid coupling can be adjusted through rotating the adjusting screw. A phenomenon of transmission shaft rejection because of mounting height error is prevented. The adjustable transmission shaft has the following characteristics: simple structure, convenient mounting, etc.
Description
Technical field
This practicality relates to a kind of transmission shaft, relates in particular to the adjustable transmission shaft of using on a kind of middle-size and small-size vertical shaft (mixing) stream pump.
Background technique
Transmission shaft lower end and the rigid coupling fitting surface used on existing middle-size and small-size vertical shaft (mixing) the stream pump are conical surface, the bottom is a tightening nut, this transmission shaft with can not adjust after pump shaft is connected by rigid coupling, make troubles to installation, particularly when old pumping plant is transformed, because the in-site measurement condition is relatively poor, setting height(from bottom) is easy to generate error, when newly-built pumping plant was pressed drawing construction, setting height(from bottom) also was easy to generate error, caused the unit can't normal mounting.Not only increase the after sales service expense, and finally cause propeller shaft length not to and scrap.
The model utility content
The purpose of this utility model just provides a kind of adjustable transmission shaft, and axial position can be adjusted (adjustment range is ± 25 millimeters) between this transmission shaft and the rigid coupling, and the transmission shaft that can effectively avoid occurring because of the setting height(from bottom) error is scrapped phenomenon.
The purpose of this utility model can realize by following scheme:
A kind of adjustable transmission shaft, comprise transmission shaft and rigid coupling, the fitting surface that it is characterized in that transmission shaft lower end and rigid coupling is the cylndrical surface, the bottom of transmission shaft is provided with the adjustment nut, described adjustment nut also is between the rigid coupling, adjust the nut external profile diameter and be slightly larger than the rigid coupling external diameter, can rotate.Adjust nut by rotation and just can adjust axial position between transmission shaft and the rigid coupling, the phenomenon that the transmission shaft of having avoided occurring because of the setting height(from bottom) error is scrapped.
The utlity model has characteristics such as simple in structure, easy for installation.
Description of drawings
Fig. 1, existing transmission shaft user mode structural representation
Fig. 2, the utility model is adjustable transmission shaft user mode structural representation
Embodiment
Contrast Fig. 1 as can be known, existing transmission shaft lower end and rigid coupling fitting surface are conical surface, and the bottom is a tightening nut, and the axial position between transmission shaft and the rigid coupling is fixed, and can not adjust.
Contrast Fig. 2 as can be known, the utility model comprises transmission shaft 1 and rigid coupling 2, the fitting surface that it is characterized in that transmission shaft lower end and rigid coupling is the cylndrical surface, the bottom of transmission shaft is provided with adjusts nut 3, described adjustment nut 3 also is between the rigid coupling, the external profile diameter of adjusting nut 3 is slightly larger than the external diameter of rigid coupling, can rotate.Adjust nut by rotation and just can adjust axial position between transmission shaft and the rigid coupling.
Claims (1)
1. adjustable transmission shaft, comprise transmission shaft (1) and rigid coupling (2), the fitting surface that it is characterized in that transmission shaft lower end and rigid coupling is the cylndrical surface, the bottom of transmission shaft is provided with adjusts nut (3), described adjustment nut (3) also is between the rigid coupling, the external profile diameter of adjusting nut (3) is slightly larger than the external diameter of rigid coupling, can rotate.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010202994502U CN201753698U (en) | 2010-08-17 | 2010-08-17 | Adjustable transmission shaft |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN2010202994502U CN201753698U (en) | 2010-08-17 | 2010-08-17 | Adjustable transmission shaft |
Publications (1)
Publication Number | Publication Date |
---|---|
CN201753698U true CN201753698U (en) | 2011-03-02 |
Family
ID=43621430
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN2010202994502U Expired - Fee Related CN201753698U (en) | 2010-08-17 | 2010-08-17 | Adjustable transmission shaft |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN201753698U (en) |
-
2010
- 2010-08-17 CN CN2010202994502U patent/CN201753698U/en not_active Expired - Fee Related
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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: 20110302 Termination date: 20160817 |