CN204096071U - Air motor - Google Patents
Air motor Download PDFInfo
- Publication number
- CN204096071U CN204096071U CN201420567269.3U CN201420567269U CN204096071U CN 204096071 U CN204096071 U CN 204096071U CN 201420567269 U CN201420567269 U CN 201420567269U CN 204096071 U CN204096071 U CN 204096071U
- Authority
- CN
- China
- Prior art keywords
- screw propeller
- guide shell
- transmission shaft
- group
- propeller
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a kind of air motor, solve refraction current when traditional propeller is run large, efficiency is low, produce the problem of a large amount of cavitation erosions, it comprises the screw propeller group be fixed on transmission shaft and the active force screw propeller being fixed on described transmission shaft tail end, the excircle of described screw propeller group arranges guide shell, this guide shell is contained on transmission shaft by fixed mount turning set, described screw propeller group comprises the screw propeller that at least three rows pass on moving axis axial array, the diameter of active force screw propeller is greater than the diameter of propeller of described screw propeller group, the sidewall of described guide shell and the connecting portion of front end arrange current introducing port, current export mouth is set with the connecting portion of rear end, the inwall of described guide shell is provided with rifling flow deflector.The utility model air motor can be made operationally to reduce current refraction that propeller rotational brings, significantly reduces cavitation erosion, effectively raises the propulsion coefficient of screw propeller, reduce energy resource consumption.
Description
Technical field
The utility model relates to driving device for a vessel, particularly a kind of air motor.
Background technology
At present, existing boats and ships generally adopt screw propeller as the propelling unit travelled, utilize screw propeller to rotate in water to produce the effect of current backward to promote hull to move forward, traditional screw propeller is on transmission shaft, adopt monomer screw propeller to rotate, current form eddy current after screw propeller, but simultaneously current also form refraction current to surrounding through screw propeller, have lost the power that part advances, reduce the service efficiency of booster, and create a large amount of cavitation erosions when screw propeller rotates, influence of noise is produced to surrounding environment.
Summary of the invention
The purpose of this utility model is to provide a kind of air motor, solve traditional propeller run time refraction current large, efficiency is low, produce the problem of a large amount of cavitation erosions, it can improve running efficiency actv. screw propeller reduces cavitation erosion in actv. direction of controlling current refraction flowing.
The technical scheme that the utility model adopts is: a kind of air motor, comprise screw propeller and transmission shaft, its technical essential is: described screw propeller comprises the screw propeller group be fixed on transmission shaft and the active force screw propeller being fixed on described transmission shaft tail end, the excircle of described screw propeller group arranges guide shell, this guide shell is contained on transmission shaft by fixed mount turning set, described screw propeller group comprises the screw propeller that at least three rows pass on moving axis axial array, the diameter of active force screw propeller is greater than the diameter of propeller of described screw propeller group, the sidewall of described guide shell and the connecting portion of front end arrange current introducing port, current export mouth is set with the connecting portion of rear end, the inwall of described guide shell is provided with rifling flow deflector.
Described current introducing port is two, passes on moving axis and is symmetrical arranged; Described current export mouth is two, passes on moving axis and is symmetrical arranged.
Between each row's screw propeller that described rifling flow deflector is arranged on screw propeller group the guide shell at position, interval inwall on.
The helical angle of described active force screw propeller is greater than the helical angle of the screw propeller of screw propeller group.
The helical angle of described active force screw propeller is 45 degree to 40 degree, and the helical angle of the screw propeller of screw propeller group is 38 degree to 33 degree.
The good effect that the utility model has is: on transmission shaft, be fixed with screw propeller group because the utility model adopts and rotate in suit guide shell, transmission shaft afterbody arranges active force screw propeller, the sidewall of guide shell and front, the connecting portion of rear end arranges current introducing port and current export mouth, inwall is provided with rifling flow deflector, current introducing port and current export mouth add flooding quantity and the aquifer yield of guide shell side direction, the utility model air motor can be made operationally to reduce current refraction that propeller rotational brings, significantly reduce cavitation erosion, effectively raise the propulsion coefficient of screw propeller, reduce energy resource consumption.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is a kind of integral structure schematic diagram of the present utility model;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is that the A-A of Fig. 2 is to cutaway view;
Fig. 4 is the plan structure schematic diagram of Fig. 1;
Fig. 5 is the helical angle schematic diagram of screw propeller of the present utility model;
Fig. 6 is another kind of structural representation of the present utility model.
In figure, sequence number illustrates: 1 transmission shaft, 2 guide shells, 3 active force screw propellers, 4 fixed mounts, 5 screw propeller groups, 6 rifling flow deflectors, 7 current introducing ports, 8 current export mouths.
Detailed description of the invention
Concrete structure of the present utility model is described in detail according to Fig. 1 ~ 5, a kind of air motor as shown in Figures 1 to 4, middle part on transmission shaft 1 is fixed with screw propeller group 5, active force screw propeller 3 is fixed with at transmission shaft afterbody, the excircle of screw propeller group 5 arranges guide shell 2, this guide shell is contained on transmission shaft 1 by fixed mount 4 turning set of rear and front end, fixed mount 4 is connected with transmission shaft 1 by bearing arrangement, screw propeller group 5 comprises the screw propeller that at least three rows pass on moving axis axial array, the diameter of active force screw propeller 3 is greater than the diameter of propeller of described screw propeller group 5, the sidewall of guide shell 2 and the connecting portion of front end arrange current introducing port 7, the sidewall of guide shell and the connecting portion of rear end arrange current export mouth 8, current introducing port is two, pass on moving axis to be symmetrical arranged, described current export mouth is two, passes on moving axis and is symmetrical arranged, the inwall of guide shell is provided with rifling flow deflector, between each row's screw propeller that rifling flow deflector 6 is arranged on screw propeller group the guide shell 2 at position, interval inwall on.
Further, as shown in Figure 5, the pitch angle gamma 2 of active force screw propeller 3 is greater than the pitch angle gamma 1 of the screw propeller of screw propeller group 5.The pitch angle gamma 2 of active force screw propeller is 45 degree to 40 degree, and the pitch angle gamma 1 of the screw propeller of screw propeller group is 38 degree to 33 degree.So more be conducive to the work efficiency improving screw propeller.
As shown in Figure 6, screw propeller group 5 is the screw propeller that five rows pass on the screw propeller of moving axis axial array.Also can more screw propeller be further set, and bracing frame can be set at the middle part of transmission shaft.
Principle of work, this air motor is arranged on bottom of ship or diving outfit, transmission shaft 1 is driven to rotate by engine installation, screw propeller rotates and is sucked by front end and current introducing port by current, enter in guide shell, because the drive of blade and the water conservancy diversion of rifling flow deflector are organized in the restriction water (flow) direction of guide shell and front and back more, current accelerate to flow backward, flow out fast at guide shell afterbody and current export mouth, finally flow out backward under the powerful turning effort of active force screw propeller, current form powerful thrust, promote hull and move forward.This structure significantly limits current and rotates the refraction brought at screw propeller, and significantly reduces cavitation erosion, effectively raises the propulsion coefficient of screw propeller, reduces energy resource consumption.
Claims (5)
1. an air motor, comprise screw propeller and transmission shaft, it is characterized in that: described screw propeller comprises the screw propeller group be fixed on transmission shaft and the active force screw propeller being fixed on transmission shaft tail end, the excircle of described screw propeller group arranges guide shell, this guide shell is contained on transmission shaft by fixed mount turning set, described screw propeller group comprises the screw propeller that at least three rows pass on moving axis axial array, the diameter of active force screw propeller is greater than the diameter of propeller of described screw propeller group, the sidewall of described guide shell and the connecting portion of front end arrange current introducing port, current export mouth is set with the connecting portion of rear end, the inwall of described guide shell is provided with rifling flow deflector.
2. air motor according to claim 1, is characterized in that: described current introducing port is two, passes on moving axis and is symmetrical arranged; Described current export mouth is two, passes on moving axis and is symmetrical arranged.
3. air motor according to claim 1, is characterized in that: between each row's screw propeller that described rifling flow deflector is arranged on screw propeller group the guide shell at position, interval inwall on.
4. air motor according to claim 1, is characterized in that: the helical angle of described active force screw propeller is greater than the helical angle of the screw propeller of screw propeller group.
5. air motor according to claim 4, is characterized in that: the helical angle of described active force screw propeller is 45 degree to 40 degree, and the helical angle of the screw propeller of screw propeller group is 38 degree to 33 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420567269.3U CN204096071U (en) | 2014-09-29 | 2014-09-29 | Air motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420567269.3U CN204096071U (en) | 2014-09-29 | 2014-09-29 | Air motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204096071U true CN204096071U (en) | 2015-01-14 |
Family
ID=52264517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420567269.3U Expired - Fee Related CN204096071U (en) | 2014-09-29 | 2014-09-29 | Air motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204096071U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787280A (en) * | 2015-04-24 | 2015-07-22 | 高阳 | Gas fluid and liquid fluid force concentrating lift-thruster with double-shaft paddle impellers |
| CN106080953A (en) * | 2016-06-12 | 2016-11-09 | 中国船舶重工集团公司第七○二研究所 | A kind of latticed wing vortex generator that vestibule stream can be suppressed to swash noise |
| CN107284633A (en) * | 2017-06-07 | 2017-10-24 | 广州市番禺远航螺旋桨制造有限公司 | It is a kind of to reduce the propeller of cavitation erosion |
| CN107499485A (en) * | 2017-09-06 | 2017-12-22 | 艾美达（天津）科技有限公司 | A kind of axial-flow pump formula screw propeller |
| CN113148086A (en) * | 2020-08-10 | 2021-07-23 | 西北工业大学 | Propulsion unit for extracting and utilizing rotational flow energy of underwater propeller |
-
2014
- 2014-09-29 CN CN201420567269.3U patent/CN204096071U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104787280A (en) * | 2015-04-24 | 2015-07-22 | 高阳 | Gas fluid and liquid fluid force concentrating lift-thruster with double-shaft paddle impellers |
| CN106080953A (en) * | 2016-06-12 | 2016-11-09 | 中国船舶重工集团公司第七○二研究所 | A kind of latticed wing vortex generator that vestibule stream can be suppressed to swash noise |
| CN107284633A (en) * | 2017-06-07 | 2017-10-24 | 广州市番禺远航螺旋桨制造有限公司 | It is a kind of to reduce the propeller of cavitation erosion |
| CN107284633B (en) * | 2017-06-07 | 2019-01-15 | 广州市番禺远航螺旋桨制造有限公司 | A kind of propeller that can reduce cavitation erosion |
| CN107499485A (en) * | 2017-09-06 | 2017-12-22 | 艾美达（天津）科技有限公司 | A kind of axial-flow pump formula screw propeller |
| CN113148086A (en) * | 2020-08-10 | 2021-07-23 | 西北工业大学 | Propulsion unit for extracting and utilizing rotational flow energy of underwater propeller |
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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 |
Granted publication date: 20150114 Termination date: 20150929 |
|
| EXPY | Termination of patent right or utility model |