CN215155557U - Mechanism for adjusting and indicating pitch angle of blades of fine-tuning pitch propeller - Google Patents
Mechanism for adjusting and indicating pitch angle of blades of fine-tuning pitch propeller Download PDFInfo
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- CN215155557U CN215155557U CN202120743232.1U CN202120743232U CN215155557U CN 215155557 U CN215155557 U CN 215155557U CN 202120743232 U CN202120743232 U CN 202120743232U CN 215155557 U CN215155557 U CN 215155557U
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Abstract
The utility model relates to a be used for finely tuning pitch propeller paddle pitch angle modulation and indicating mechanism, including angle indication scale plate and pitch angle modulation mechanism, angle indication scale plate comprises main scale plate and vice scale plate for instruct the angle of paddle pitch, main scale plate and vice scale plate are installed respectively on paddle blade root flange plane and on the radial periphery of propeller hub body blade root bearing, the last "0" line of main scale plate aligns the last "0" line of vice scale plate; the pitch angle adjusting mechanism consists of a first joint component, a second joint component and a double-end internal thread stud; one end of the joint component is connected with an internal thread hole on the blade root flange, and the other end of the joint component is connected with an internal thread at one end of the double-end internal thread stud; and one end of the joint component II is connected with the radial internal thread hole of the blade root bearing of the propeller hub body, and the other end of the joint component II is connected with the internal thread at the other end of the double-end internal thread stud. The utility model discloses can realize finely tuning the accurate regulation of pitch propeller paddle pitch angle.
Description
Technical Field
The utility model relates to a boats and ships power propulsive screw, especially a fine setting pitch screw paddle pitch angle modulation and indicating mechanism.
Background
The blade pitch of the fine-tuning pitch propeller can be subjected to stepless adjustment within a certain range at the designed pitch position accessory so as to compensate ship resistance to a certain extent, thereby solving the problem that ship resistance changes due to long-term running of a ship and realizing the optimal matching of ship-machine-propeller propulsion performance; meanwhile, for the propellers of a plurality of groups of propulsion shafting, the power balance matching of the propellers can be realized according to the difference of arrangement and sinking depth of the propellers. Accordingly, there is a need for a dedicated mechanism to enable precise adjustment and indication of the fine pitch propeller blade pitch angle.
Disclosure of Invention
The utility model discloses a purpose is put forward a fine setting screw propeller blade pitch angle regulation and indicating mechanism, realizes the accurate regulation of fine setting screw propeller blade pitch angle to change the hydrodynamic performance of screw, so that reach the purpose of ship-machine-oar performance best matching.
In order to achieve the above purpose, the technical scheme of the utility model is that: a blade pitch angle adjusting and indicating mechanism for a fine-tuning pitch propeller comprises an angle indicating scale plate and a pitch angle adjusting mechanism, wherein the angle indicating scale plate consists of a main scale plate and an auxiliary scale plate and is used for indicating the angle of the blade pitch, the main scale plate and the auxiliary scale plate are respectively arranged on a blade root flange plane and a radial circumferential surface of a blade root bearing of a propeller hub body, and a '0' line on the main scale plate is aligned with a '0' line on the auxiliary scale plate; the pitch angle adjusting mechanism consists of a first joint component, a second joint component and a double-end internal thread stud; one end of the joint component is connected with an internal thread hole on the blade root flange, and the other end of the joint component is connected with an internal thread at one end of the double-end internal thread stud; and one end of the joint component II is connected with the radial internal thread hole of the blade root bearing of the propeller hub body, and the other end of the joint component II is connected with the internal thread at the other end of the double-end internal thread stud.
Furthermore, graduation lines with degrees as a unit are marked on the main scale plate, a 0 line is taken as a starting point, the scale line on the right side of the 0 line is marked as "+", and the scale line on the left side is marked as "-"; a "+" value indicates that the blade pitch angle is adjusted in the forward direction and a "-" value indicates that the blade pitch angle is adjusted in the reverse direction.
Furthermore, the number of the dividing lines on the auxiliary scale plate is ten degrees or twenty degrees.
Further, the angle value of the pitch of the blade indicated by the angle indication scale plate is equal to the main scale reading + (nth scale line-1) × the division value.
Further, the first joint component comprises a large nut, a circular connector and a stud, the stud is connected with a threaded hole in the plane of the flange of the blade root, and the circular connector is connected with the stud through the large nut.
And the joint assembly II is composed of a groove-shaped joint, a single-head screw, a small nut and a bolt, the single-head screw is connected with a radial threaded hole of a blade root bearing of the propeller hub body, and the groove-shaped joint is connected with the single-head screw through the small nut and the bolt.
Furthermore, the screw thread turning directions of the large nut and the stud in the joint component I and the single-head screw, the small nut and the bolt in the joint component II are the same and are right-hand screw threads.
Furthermore, the two ends of the double-end internal thread stud are respectively provided with an internal thread hole, the rotating directions of the threads at the two ends are opposite, namely, one end of the double-end internal thread stud is a left-handed internal thread, and the other end of the double-end internal thread stud is a right-handed internal thread.
Furthermore, when the double-end internal thread stud is rotated clockwise or counterclockwise, the distance between the first joint component and the second joint component is increased or decreased, so that the paddle is driven to rotate clockwise or counterclockwise, the pitch angle of the paddle is increased or decreased, and the pitch of the paddle is adjusted.
The utility model has the advantages that:
adopt the utility model discloses a dedicated mechanism for pitch angle modulation and instruction can realize the accurate regulation of paddle pitch angle, both can change the uncertain risk of the new ship of building arousing on screw design and manufacturing, also can solve the problem that ship-machine-oar matching nature is poor that the ship resistance change arouses at labour naval vessel, can solve simultaneously because the screw arranges the unbalanced problem of power that the difference arouses.
Drawings
FIG. 1 is a schematic view of a blade pitch angle adjustment and indication specific mechanism installation;
FIG. 2 is a schematic view of an angle indicating dial plate;
FIG. 3 is a schematic view of a main scale plate;
FIG. 4 is a schematic view of the secondary dial plate;
FIG. 5 is a schematic view of a pitch angle adjustment mechanism;
in the figure: 1. the novel blade hub structure comprises a scale plate, 2 pitch angle adjusting mechanisms, 3 blade root flanges, 4 blade root bearings of a hub body, 1-1 main scale plate, 1-2 auxiliary scale plates, 2-1 joint component I, 2-1-1 large nuts, 2-1-2 circular connectors, 2-1-3 stud bolts, 2-2 joint component II, 2-2-1 groove-shaped connectors, 2-2-2 single-head screw rods, 2-2-3 small nuts, 2-2-4 bolts and 2-3 double-head internal thread studs.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings and examples.
The embodiment is a special mechanism for adjusting and indicating the pitch angle of the fine-tuning pitch propeller blade, which is installed between a blade root flange and a blade root bearing of a hub body and used for adjusting and indicating the pitch angle of the fine-tuning pitch propeller blade. The mechanism comprises an angle indication scale plate 1 (comprising a main scale plate 1-1 and an auxiliary scale plate 1-2), a screw pitch angle adjusting mechanism 2 (comprising a joint component I2-1 (comprising a large nut 2-1-1, a round joint 2-1-2 and a stud 2-1-3), a joint component II 2-2 (comprising a groove-shaped joint 2-2-1, a single-head screw rod 2-2, a small nut 2-2-3, a bolt 2-2-4) and an internal stud 2-3), and the special tool is shown in the attached figures 1-5 in detail.
The specific embodiment is as follows:
the main scale plate 1-1 is arranged on the plane of a blade root flange 3 of the blade, and the auxiliary scale plate 1-2 is arranged on the radial circumferential surface of a blade root bearing 4 of the hub body of the blade; the line 0 on the main scale plate 1-1 is aligned with the line 0 on the auxiliary scale plate 1-2; the main scale plate is marked with graduation lines which generally take degrees as units, the 0 line is taken as a starting point, the scale line on the right side of the 0 line is marked as "+", and the scale line on the left side is marked as "-"; the "+" value indicates that the blade pitch angle is adjusted in the forward direction, and the "-" value indicates that the blade pitch angle is adjusted in the reverse direction; according to the different number of the dividing lines on the auxiliary scale plate, the division can be generally divided into ten division and twenty division.
During reading, firstly, reading the degree on the main scale plate by taking the scale mark of '0' of the auxiliary scale plate as a reference, and then reading the nth scale mark aligned with the scale mark of the main scale plate on the auxiliary scale plate;
when the pitch angle of the blade is adjusted towards the forward direction, reading the nth alignment scale mark on the auxiliary scale plate from right to left; when the pitch angle of the blade is adjusted towards the reversing direction, the nth alignment scale mark is read from left to right on the auxiliary scale plate.
The angle value is the main scale reading + (nth scale line-1) × division value.
The plane of the blade root flange 3 is provided with a threaded hole, the stud 2-1-3 is connected with the threaded hole on the plane of the blade root flange 3, and the round connector 2-1-2 is connected with the stud 2-1-3 through the big nut 2-1-1. The propeller hub body blade root bearing 4 is radially provided with a threaded hole, the single-head screw 2-2 is connected with the radial threaded hole of the propeller hub body blade root bearing 4, and the groove-shaped connector 2-2-1 is connected with the single-head screw 2-2-2 through the small nut 2-2-3 and the bolt 2-2-4. The internal threads at the two ends of the double-end internal thread stud 2-3 are opposite in rotating direction, namely one end is a left-handed internal thread and the other end is a right-handed internal thread. The external threads of the round connector 2-1-2 and the groove-shaped connector 2-2-1 have the same rotating direction and are generally right-handed threads. The internal thread at one end of the double-end internal thread stud 2-3 is connected with the external thread of the round connector 2-1-2, and the internal thread at the other end is connected with the external thread of the groove-shaped connector 2-2-1.
When in adjustment, the special spanner is adopted to rotate the double-end internal thread stud 2-3, the distance between the circular connector 2-1-2 and the groove-shaped connector 2-2-1 can be increased or decreased, the blade root flange 3 of the blade can be driven to rotate, the increase or decrease of the pitch angle of the blade can be realized, the angle for adjusting the pitch of the blade can be obtained by reading the angle degree on the scale plate 1, and therefore the adjustment of the pitch of the blade is completed.
Claims (8)
1. The utility model provides a be used for fine setting screw pitch propeller blade pitch angle modulation and indicating mechanism, includes angle indication scale plate and pitch angle modulation mechanism, its characterized in that: the angle indication scale plate consists of a main scale plate and an auxiliary scale plate and is used for indicating the pitch angle of the blade, the main scale plate and the auxiliary scale plate are respectively arranged on the blade root flange plane and the radial circumferential surface of the blade root bearing of the hub body, and the 0 line on the main scale plate is aligned with the 0 line on the auxiliary scale plate; the pitch angle adjusting mechanism consists of a first joint component, a second joint component and a double-end internal thread stud; one end of the joint component is connected with an internal thread hole on the blade root flange, and the other end of the joint component is connected with an internal thread at one end of the double-end internal thread stud; and one end of the joint component II is connected with the radial internal thread hole of the blade root bearing of the propeller hub body, and the other end of the joint component II is connected with the internal thread at the other end of the double-end internal thread stud.
2. The mechanism for fine pitch propeller blade pitch angle adjustment and indication of claim 1, wherein: the main scale plate is marked with graduation lines with the degree as a unit, the '0' line is used as a starting point, the scale line on the right side of the '0' line is marked as "+", and the scale line on the left side is marked as "-"; a "+" value indicates that the blade pitch angle is adjusted in the forward direction and a "-" value indicates that the blade pitch angle is adjusted in the reverse direction.
3. The mechanism for fine pitch propeller blade pitch angle adjustment and indication of claim 1, wherein: the number of the dividing lines on the auxiliary scale plate is ten degrees or twenty degrees.
4. The mechanism for fine pitch propeller blade pitch angle adjustment and indication of claim 1, wherein: the angle value of the blade pitch indicated by the angle indication scale plate is equal to the main scale reading + (nth scale line-1) multiplied by the division value.
5. The mechanism for fine pitch propeller blade pitch angle adjustment and indication of claim 1, wherein: the first joint component is composed of a large nut, a circular connector and a stud, the stud is connected with a threaded hole in the plane of the blade root flange, and the circular connector is connected with the stud through the large nut.
6. The mechanism for fine pitch propeller blade pitch angle adjustment and indication of claim 1, wherein: the joint assembly II consists of a groove-shaped joint, a single-head screw, a small nut and a bolt, the single-head screw is connected with a radial threaded hole of a blade root bearing of the propeller hub body, and the groove-shaped joint is connected with the single-head screw through the small nut and the bolt.
7. The mechanism for fine pitch propeller blade pitch angle adjustment and indication of claim 1, wherein: the screw thread turning directions of the large nut and the stud in the joint component I and the single-head screw, the small nut and the bolt in the joint component II are the same, and the screw thread turning directions are right-hand threads.
8. The mechanism for fine pitch propeller blade pitch angle adjustment and indication of claim 1, wherein: the double-end internal thread stud is characterized in that internal thread holes are formed in two ends of the double-end internal thread stud respectively, the rotating directions of threads at two ends are opposite, namely, one end of the double-end internal thread stud is a left-handed internal thread, and the other end of the double-end internal thread stud is a right-handed internal thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120743232.1U CN215155557U (en) | 2021-04-09 | 2021-04-09 | Mechanism for adjusting and indicating pitch angle of blades of fine-tuning pitch propeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120743232.1U CN215155557U (en) | 2021-04-09 | 2021-04-09 | Mechanism for adjusting and indicating pitch angle of blades of fine-tuning pitch propeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215155557U true CN215155557U (en) | 2021-12-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120743232.1U Active CN215155557U (en) | 2021-04-09 | 2021-04-09 | Mechanism for adjusting and indicating pitch angle of blades of fine-tuning pitch propeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215155557U (en) |
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2021
- 2021-04-09 CN CN202120743232.1U patent/CN215155557U/en active Active
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