CN217835988U

CN217835988U - Drag resistance adjustable variable pitch propeller

Info

Publication number: CN217835988U
Application number: CN202222461165.1U
Authority: CN
Inventors: 孙渭南; 周来; 刘令; 甘远富; 李春花
Original assignee: Kaiping Yuanhang Propeller Manufacturing Co ltd
Current assignee: Kaiping Yuanhang Propeller Manufacturing Co ltd
Priority date: 2022-09-17
Filing date: 2022-09-17
Publication date: 2022-11-18
Anticipated expiration: 2032-09-17

Abstract

The utility model provides a variable pitch screw with adjustable drag resistance relates to variable pitch screw technical field, including the propeller hub, four sides of propeller hub all are equipped with the holding seat, one side of holding seat is equipped with the connecting seat, one side of connecting seat is connected with the blade, the bottom of propeller hub is connected with the transmission shaft, the inboard of transmission shaft is connected with the regulating spindle, the support is all installed to four sides in the inside of propeller hub, the inboard of support is connected with first pivot, the one end cover of first pivot is equipped with the worm wheel, the spliced pole is installed to one side of worm wheel, the one end of spliced pole is connected with the universal joint, the inboard of holding seat is connected with the second pivot, the one end of second pivot and the opposite side of connecting seat are connected, the one end of universal joint and the other end of second pivot are connected, the outside cover of regulating spindle is equipped with the worm, worm and worm wheel meshing. The utility model discloses can effectively adjust and pull the resistance, and have the locking function, stability is higher, has higher practical value.

Description

Drag resistance adjustable variable pitch propeller

Technical Field

The utility model belongs to the technical field of the variable pitch screw, more specifically say, in particular to variable pitch screw with adjustable drag resistance.

Background

The variable-pitch propeller is also called a variable-pitch propeller, and is called a variable-pitch propeller for short. The adjustable pitch propeller can drive the blades to rotate around the axis of the root part of the blade through the variable pitch mechanism in the hub under the condition that the rotating speed and the steering of a main engine of the ship are not changed, so that the pitch angle and the pitch of the propeller are changed, the thrust of the propeller is changed in size and direction, the requirements of various working conditions such as advancing, retreating, stopping and speed changing of the ship are met, and the ship control performance is improved. The adjustable pitch propeller is not limited by the lowest stable rotating speed of a main engine of the ship, the most reasonable economic working conditions under various rotating speeds are provided by changing the pitch of the propeller, fuel is saved, and the economic performance of the ship is improved.

Based on the above, the present inventors found that the following problems exist: when the existing variable-pitch propeller is used, the dragging resistance cannot be adjusted, the locking function is not provided, the stability is low, and the use of a user is influenced.

Therefore, in view of the above, research and improvement are made on the existing structure and defects, and a variable pitch propeller with adjustable drag resistance is provided, so as to achieve the purpose of higher practical value.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a variable pitch screw with adjustable drag to solve present variable pitch screw and when using, can't adjust and pull the resistance, and do not have the locking function, stability is lower, influences the problem that the user used.

The utility model discloses variable pitch screw's purpose and efficiency with adjustable drag reaches by following specific technological means:

the utility model provides a variable-pitch propeller with adjustable drag resistance, includes the propeller hub, four sides of propeller hub all are equipped with the holding seat, one side of holding seat is equipped with the connecting seat, one side of connecting seat is connected with the blade, the bottom of propeller hub is connected with the transmission shaft, the inboard of transmission shaft is connected with the regulating spindle, the support is all installed to four sides of the inside of propeller hub, the inboard of support is connected with first pivot, the one end cover of first pivot is equipped with the worm wheel, the spliced pole is installed to one side of worm wheel, the one end of spliced pole is connected with the universal joint, the inboard of holding seat is connected with the second pivot, the one end of second pivot is connected with the opposite side of connecting seat, the one end of universal joint and the other end of second pivot are connected, the outside cover of regulating spindle is equipped with the worm, worm and worm wheel meshing.

Further, the holding seats are distributed at equal intervals.

Furthermore, a sealing ring is arranged at the joint of the second rotating shaft and the retaining seat.

Further, the universal joint is a double-joint universal joint.

Furthermore, the outer side of the adjusting shaft is sleeved with a first bearing, and the transmission shaft is rotatably connected with the adjusting shaft through the first bearing.

Furthermore, a second bearing is sleeved on the outer side of the first rotating shaft, and the support is in rotating connection with the first rotating shaft through the second bearing.

Furthermore, a third bearing is sleeved on the outer side of the second rotating shaft, and the holding seat is rotatably connected with the second rotating shaft through the third bearing.

Compared with the prior art, the utility model discloses following beneficial effect has:

1. the variable-pitch propeller with adjustable drag resistance is characterized in that a transmission shaft is connected to the bottom end of a propeller hub, so that rotation of a rotating shaft is realized, a product can be driven to rotate, an adjusting shaft is connected to the inner side of the transmission shaft, so that rotation of the adjusting shaft is realized, a worm can be driven to rotate, a self-locking effect is realized by meshing the worm and a worm wheel, the stability of blades is improved, a universal joint is a double-joint universal joint, so that when the worm wheel rotates, a second rotating shaft can be driven to rotate, one end of the second rotating shaft is connected with the other side of a connecting seat, so that rotation of the second rotating shaft is realized, and the blades can be driven to rotate, so that the positions of the blades are adjusted;

2. according to the variable-pitch propeller with adjustable drag resistance, the blades are uniformly distributed through equidistant distribution between the retaining seats, the sealing ring is arranged at the joint of the second rotating shaft and the retaining seats, the sealing performance of a product is improved, the first bearing is sleeved outside the adjusting shaft, the rotating stability of the adjusting shaft in the transmission shaft is effectively improved, the second bearing is sleeved outside the first rotating shaft, the rotating stability of the first rotating shaft in the support is effectively improved, and the third bearing is sleeved outside the second rotating shaft, so that the rotating stability of the second rotating shaft in the retaining seats is effectively improved; the utility model discloses can effectively adjust and pull the resistance, and have the locking function, stability is higher, has higher practical value.

Drawings

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a cross-sectional view of the present invention.

Fig. 3 is an enlarged schematic view of the structure a in fig. 2 according to the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a hub; 2. a holder; 3. a connecting seat; 4. a blade; 5. a drive shaft; 6. an adjustment shaft; 7. a worm; 8. a support; 9. a first rotating shaft; 10. a worm gear; 11. connecting columns; 12. a universal joint; 13. a second rotating shaft.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, rather than to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 3:

the utility model provides a variable-pitch propeller with adjustable drag resistance, which comprises a propeller hub 1, wherein four sides of the propeller hub 1 are respectively provided with a retaining seat 2, one side of the retaining seat 2 is provided with a connecting seat 3, one side of the connecting seat 3 is connected with a blade 4, the bottom end of the propeller hub 1 is connected with a transmission shaft 5, the transmission shaft 5 is connected with the bottom end of the propeller hub 1 to realize the rotation of the rotation shaft 5, thereby driving the product to rotate, the inner side of the transmission shaft 5 is connected with an adjusting shaft 6, the adjusting shaft 6 is connected with the inner side of the transmission shaft 5 to realize the rotation of the adjusting shaft 6, thereby driving a worm 7 to rotate, thereby realizing the adjustment of the blade 4, four sides in the propeller hub 1 are respectively provided with a bracket 8, the inner side of the bracket 8 is connected with a first rotating shaft 9, one end cover of first pivot 9 is equipped with worm wheel 10, spliced pole 11 is installed to one side of worm wheel 10, the one end of spliced pole 11 is connected with universal joint 12, the inboard that keeps seat 2 is connected with second pivot 13, the one end of second pivot 13 and the opposite side of connecting seat 3 are connected, the one end through second pivot 13 and the opposite side of connecting seat 3 are connected, it is rotatory to realize second pivot 13, can drive blade 4 rotatory, thereby adjust the position of blade 4, make its regulation pull the resistance, the one end of universal joint 12 and the other end of second pivot 13 are connected, the outside cover of regulating spindle 6 is equipped with worm 7, worm 7 and worm wheel 10 mesh, through worm 7 and worm wheel 10 mesh, realize the auto-lock effect, improve blade 4's stability.

Wherein, keep the equidistant distribution between the seat 2, through keeping equidistant distribution between the seat 2, realize blade 4 evenly distributed.

Wherein, the junction of second pivot 13 and holding seat 2 is equipped with the sealing washer, is equipped with the sealing washer through the junction of second pivot 13 and holding seat 2, improves the leakproofness of product.

Wherein, universal joint 12 is the double-joint universal joint, is the double-joint universal joint through universal joint 12, realizes when worm wheel 10 is rotatory, can drive the rotation of second pivot 13.

Wherein, the outside cover of regulating shaft 6 is equipped with first bearing, and transmission shaft 5 and regulating shaft 6 rotate through first bearing and connect, and the outside cover through regulating shaft 6 is equipped with first bearing, effectively improves the rotational stability of regulating shaft 6 in transmission shaft 5.

Wherein, the outside cover of first pivot 9 is equipped with the second bearing, and support 8 and first pivot 9 pass through second bearing swivelling joint, and the outside cover through first pivot 9 is equipped with the second bearing, effectively improves the rotational stability of first pivot 9 in support 8.

Wherein, the outside cover of second pivot 13 is equipped with the third bearing, keeps seat 2 and second pivot 13 to rotate through the third bearing and connects, and the outside cover through second pivot 13 is equipped with the third bearing, effectively improves the rotational stability of second pivot 13 in keeping seat 2.

The specific use mode and function of the embodiment are as follows:

when using this kind of product, at first, whether the junction that detects this product fastens, place the product at the assigned position after guaranteeing intact, this product of installation, bottom through propeller hub 1 is connected with transmission shaft 5, it is rotatory to realize axis of rotation 5, can drive the product rotation, through rotatory regulating spindle 6, it is rotatory to make worm 7 rotate, thereby make worm 7 drive worm wheel 10 rotatory, when worm wheel 10 is rotatory, make universal joint 12 drive second pivot 13 rotatory, it is rotatory to realize blade 4, thereby realize pulling the resistance regulation, the outside cover through regulating spindle 6 is equipped with first bearing, effectively improve the rotational stability of regulating spindle 6 in transmission shaft 5, the outside cover through first pivot 9 is equipped with the second bearing, effectively improve the rotational stability of first pivot 9 in support 8, the outside cover through second pivot 13 is equipped with the third bearing, effectively improve the rotational stability of second pivot 13 in keeping seat 2, the utility model discloses can effectively adjust the resistance, and have the locking function, stability is higher, has higher practical value.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to practitioners skilled in this art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A variable-pitch propeller with adjustable drag resistance comprises a hub (1), and is characterized in that: the propeller hub structure is characterized in that retaining seats (2) are arranged on four sides of the propeller hub (1), a connecting seat (3) is arranged on one side of each retaining seat (2), blades (4) are connected to one side of each connecting seat (3), a transmission shaft (5) is connected to the bottom end of the propeller hub (1), an adjusting shaft (6) is connected to the inner side of the transmission shaft (5), a support (8) is mounted on each of four sides of the interior of the propeller hub (1), a first rotating shaft (9) is connected to the inner side of the support (8), a worm wheel (10) is sleeved at one end of the first rotating shaft (9), a connecting column (11) is mounted at one side of the worm wheel (10), a universal joint (12) is connected to one end of the connecting column (11), a second rotating shaft (13) is connected to the inner side of the retaining seats (2), one end of the second rotating shaft (13) is connected to the other side of the connecting seats (3), one end of the universal joint (12) is connected to the other end of the second rotating shaft (13), a worm (7) is sleeved on the outer side of the adjusting shaft (6), and the worm (7) is meshed with the worm wheel (10).

2. The drag adjustable variable pitch propeller of claim 1, wherein: the holding seats (2) are distributed at equal intervals.

3. The drag adjustable variable pitch propeller of claim 1, wherein: and a sealing ring is arranged at the joint of the second rotating shaft (13) and the retaining seat (2).

4. The drag adjustable variable pitch propeller of claim 1, wherein: the universal joint (12) is a double-joint universal joint.

5. The drag adjustable variable pitch propeller of claim 1, wherein: the outer side of the adjusting shaft (6) is sleeved with a first bearing, and the transmission shaft (5) is rotatably connected with the adjusting shaft (6) through the first bearing.

6. The drag adjustable variable pitch propeller of claim 1, wherein: the outer side of the first rotating shaft (9) is sleeved with a second bearing, and the support (8) is in rotating connection with the first rotating shaft (9) through the second bearing.

7. The drag adjustable variable pitch propeller of claim 1, wherein: and a third bearing is sleeved on the outer side of the second rotating shaft (13), and the holding seat (2) is rotatably connected with the second rotating shaft (13) through the third bearing.