Propeller adjusting assembly capable of automatically adjusting pitch

Abstract

The utility model discloses a propeller adjusting assembly capable of automatically adjusting the pitch, which comprises a propeller hub, a propeller shaft is fixedly mounted at the right end of the propeller hub, a mounting cavity is formed in the propeller hub, an adjusting assembly is arranged in the mounting cavity, a blade hole is formed in the inner side wall of the mounting cavity, a blade is arranged in the blade hole, and a rubber cylinder is fixedly mounted on the side wall of the blade. The rubber cylinder is installed on the outer side wall of the propeller hub, the bottom end of the rubber cylinder is fixedly installed on the outer side wall of the propeller hub, the top end of the rubber cylinder is fixedly installed on the side wall of the propeller blade, the positions of the propeller blade holes can be shielded through the rubber cylinder, and seawater is prevented from entering the propeller blade holes; normal use of an adjusting assembly in the propeller hub is guaranteed, burdens on the propeller hub and a ship engine are avoided, the propeller hub can adapt to position changes of the blades through the deformable characteristic of rubber, and practicability is high.

Description

Technical Field

[0001] This patent relates to the field of propeller adjustment technology, specifically a propeller adjustment component with automatic adjustable pitch. Background Art

[0002] In order to increase the adjustability of the ship propeller, blade holes are opened on the propeller hub, and the spacing between multiple blades is adjusted through an adjustment mechanism inside the propeller hub. However, when the blade holes are open, seawater will enter the propeller hub through the blade holes, increasing the burden on the propeller hub and then the burden on the engine. It will also cause damage to the internal electronic adjustment components. For this reason, we propose an automatic pitch-adjustable propeller adjustment component. Utility Model Content

[0003] The purpose of this patent is to provide an automatically adjustable pitch propeller adjustment assembly to solve the problems raised in the above background technology.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: an automatic pitch-adjustable propeller adjustment assembly, comprising a propeller hub, a stern shaft is fixedly mounted on the right end of the propeller hub, a mounting cavity is provided inside the propeller hub, an adjustment assembly is provided inside the mounting cavity, a blade hole is provided on the inner side wall of the mounting cavity, a blade is provided in the blade hole, a rubber tube is fixedly mounted on the side wall of the blade, and the free end of the rubber tube is fixedly mounted on the outer side wall of the propeller hub;

[0005] The adjustment component includes an electric push rod, the right end of the cylinder body of the electric push rod is fixedly installed on the inner right side wall of the installation cavity, the left end of the piston rod of the electric push rod is fixedly installed with a conical column, the upper and lower ends of the side walls of the conical column are provided with dovetail grooves, a dovetail slider is slidably installed in the dovetail groove, one end of the connecting column is fixedly installed on the dovetail slider, and the other end of the connecting column is fixedly installed on the inner end of the blade.

[0006] Preferably, a first annular groove is provided on the outer wall of the hub, and a first annular portion is integrally formed on one end of the rubber tube connected to the hub, the first annular portion is located in the first annular groove, a first pressure ring is tightly fitted on the first annular portion, a mounting hole is provided on the first pressure ring, a bolt is provided in the mounting hole, and the bottom end of the bolt passes through the first annular portion and is screwed in the first annular groove.

[0007] Preferably, a second annular groove is provided on the side wall of the blade, and a second annular portion is integrally formed on one end of the rubber tube connected to the blade, the second annular portion is located in the second annular groove, a second pressure ring is sleeved on the outside of the second annular portion, a mounting hole is provided on the second pressure ring, a bolt is provided in the mounting hole, and an end of the bolt passes through the second annular portion and is screwed in the second annular groove.

[0008] Preferably, the second pressure ring comprises a first half ring and a second half ring.

[0009] Preferably, a circular groove is provided on the side wall of the end of the bolt, a circular ring is rotatably installed in the circular groove, and a connecting rope is fixedly installed on the outer side wall of the circular ring.

[0010] Preferably, a cross groove is provided on the top of the end of the bolt.

[0011] Compared with the prior art, the beneficial effects of this patent are: this patent installs a rubber tube on the outer wall of the hub, the bottom end of the rubber tube is fixedly installed on the outer wall of the hub, and the top end of the rubber tube is fixedly installed on the side wall of the blade. The rubber tube can block the position of the blade hole to prevent seawater from entering, ensure the normal use of the internal adjustment component of the hub, and avoid burdening the hub and the ship engine. The rubber's own deformable properties can adapt to changes in the position of the blade, and the patent is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is the overall three-dimensional diagram of this patent.

[0013] Figure 2 This is a three-dimensional diagram of the propeller hub of this patent.

[0014] Figure 3 This is the overall plan view of this patent.

[0015] Figure 4 This is an enlarged view of the conical column of this patent.

[0016] Figure 5 This is a schematic diagram of the partial structure of this patent.

[0017] Figure 6 This is a schematic diagram of the bolt of this patent.

[0018] In the figure: 1, propeller hub, 2, stern shaft, 3, mounting cavity, 4, blade hole, 5, blade, 6, rubber tube, 7, electric push rod, 8, tapered column, 9, dovetail slide groove, 10, dovetail slider, 11, connecting column, 12, first annular groove, 13, first annular portion, 14, first pressure ring, 15, bolt, 16, second annular groove, 17, second annular portion, 18, second pressure ring, 19, circular groove, 20, circular ring, 21, connecting rope, 22, cross groove. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of this patent to clearly and completely describe the technical solutions in the embodiments of this patent. Obviously, the described embodiments are only part of the embodiments of this patent, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0020] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 This patent provides a technical solution: an automatic pitch-adjustable propeller adjustment component, comprising a propeller hub 1, a stern shaft 2 is fixedly installed at the right end of the propeller hub 1, a mounting cavity 3 is provided inside the propeller hub 1, an adjustment component is provided inside the mounting cavity 3, a blade hole 4 is provided on the inner side wall of the mounting cavity 3, a blade 5 is provided in the blade hole 4, a rubber tube 6 is fixedly installed on the side wall of the blade 5, and the free end of the rubber tube 6 is fixedly installed on the outer side wall of the propeller hub 1;

[0021] like Figure 1 , 3 As shown, the position of the blade hole 4 can be shielded by the rubber tube 6 (in a wrinkled state) to prevent seawater from entering the hub 1 through the blade hole 4, and the position change of the blade 5 can be adapted by the deformable property of the rubber itself.

[0022] The adjustment component includes an electric push rod 7, the right end of the cylinder body of the electric push rod 7 is fixedly mounted on the inner right wall of the mounting cavity 3, the left end of the piston rod of the electric push rod 7 is fixedly mounted with a conical column 8, the upper and lower ends of the side walls of the conical column 8 are provided with dovetail grooves 9, a dovetail slider 10 is slidably mounted in the dovetail groove 9, one end of a connecting column 11 is fixedly mounted on the dovetail slider 10, and the other end of the connecting column 11 is fixedly mounted on the inner end of the blade 5.

[0023] When the piston rod of the electric push rod 7 extends to the left, it will drive the conical column 8 to move to the left, and the dovetail slider 10 will slide to the right in the dovetail slot 9, thereby driving the two blades 5 away from each other and increasing the distance between the blades 5.

[0024] Specifically, a first annular groove 12 is provided on the outer wall of the hub 1, and a first annular portion 13 is integrally formed at one end of the rubber tube 6 connected to the hub 1. The first annular portion 13 is located in the first annular groove 12, and a first pressure ring 14 is tightly fitted on the first annular portion 13. The first pressure ring 14 is provided with a mounting hole, and a bolt 15 is provided in the mounting hole. The bottom end of the bolt passes through the first annular portion 13 and is screwed in the first annular groove 12.

[0025] The outer edge of the first pressure ring 14 matches the shape of the first annular groove 12 , and the outer curvature of the first pressure ring 14 can match the curvature of the outer wall of the hub 1 , so as to facilitate the disassembly and assembly of the outer wall of the hub 1 and the rubber tube 6 .

[0026] Specifically, a second annular groove 16 is provided on the side wall of the blade 5, and a second annular portion 17 is integrally formed at one end of the rubber tube 6 connected to the blade 5. The second annular portion 17 is located in the second annular groove 16, and a second pressure ring 18 is sleeved on the outside of the second annular portion 17. The second pressure ring 18 is provided with a mounting hole, and a bolt 15 is provided in the mounting hole. The end of the bolt 15 passes through the second annular portion 17 and is screwed in the second annular groove 16.

[0027] The second pressing ring 18 matches the inner shape of the second annular groove 16 , so as to facilitate the disassembly and assembly of the blade 5 and the rubber tube 6 .

[0028] Specifically, the second pressure ring 18 includes a first half ring and a second half ring.

[0029] By dividing the second pressure ring 18 into a first half ring and a second half ring, it is convenient to remove the second pressure ring 18 from the blade 5 .

[0030] Specifically, a circular groove 19 is provided on the side wall of the end of the bolt 15 , a circular ring 20 is rotatably installed in the circular groove 19 , and a connecting rope 21 is fixedly installed on the outer side wall of the circular ring 20 .

[0031] The other end of the connecting rope 21 can be fixed on the first pressing ring 14 or the second pressing ring 18, so as to increase the connection integrity between the first pressing ring 14 or the second pressing ring 18 and the bolt 15, and avoid the bolt 15 being separated from the two and lost after disassembly.

[0032] When the bolt 15 rotates, the annular groove 19 rotates around the annular ring 20 , so as to make the bolt 15 and the connecting rope 21 rotate relative to each other.

[0033] Specifically, a cross groove 22 is provided at the top of the end of the bolt 15 .

[0034] The cross slot 22 can be provided so that a cross screwdriver can be inserted into the cross slot 22 to facilitate the rotation of the bolt 15 .

[0035] Working principle: When adjusting the spacing between the blades 5, the piston rod of the electric push rod 7 can be controlled to extend to the left, which will drive the conical column 8 to move to the left, and the dovetail slider 10 will slide to the right in the dovetail slot 9, thereby driving the two blades 5 away from each other and increasing the spacing between the blades 5. During the movement of the blades 5, the rubber tube 6 can block the blade hole 4 to prevent the entry of seawater, and through the deformable characteristics of the rubber itself, it can adapt to the position change of the blade 5.

[0036] It should be noted that the equipment structure and drawings of this patent mainly describe the principles of this patent. In terms of the technology of this design principle, the settings of the device's power mechanism, power supply system and control system are not fully described. However, on the premise that technical personnel in this field understand the principles of the above patent, they can clearly know the details of its power mechanism, power supply system and control system.

[0037] In the description of this patent, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "one side", "top", "inside", "front", "center", "two ends" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing this patent and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation; at the same time, unless otherwise clearly stipulated and limited, the terms "setting", "installation", "connection", "fixed installation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, for ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to the specific circumstances.

[0038] Although the embodiments of the present patent have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present patent, and the scope of the present patent is defined by the appended claims and their equivalents.

Claims

1. An automatic pitch-adjustable propeller adjustment assembly, characterized in that: The propeller comprises a propeller hub (1), a stern shaft (2) being fixedly mounted on the right end of the propeller hub (1), a mounting cavity (3) being arranged inside the propeller hub (1), an adjustment assembly being arranged inside the mounting cavity (3), a blade hole (4) being arranged on the inner side wall of the mounting cavity (3), a blade (5) being arranged in the blade hole (4), a rubber tube (6) being fixedly mounted on the side wall of the blade (5), and a free end of the rubber tube (6) being fixedly mounted on the outer side wall of the propeller hub (1); The adjustment assembly comprises an electric push rod (7), the right end of the cylinder body of the electric push rod (7) is fixedly mounted on the inner right side wall of the mounting cavity (3), the left end of the piston rod of the electric push rod (7) is fixedly mounted with a conical column (8), the upper and lower ends of the side wall of the conical column (8) are provided with dovetail grooves (9), a dovetail slider (10) is slidably mounted in the dovetail groove (9), one end of a connecting column (11) is fixedly mounted on the dovetail slider (10), and the other end of the connecting column (11) is fixedly mounted on the inner end of the blade (5).

2. The automatic pitch-adjustable propeller adjustment assembly according to claim 1, characterized in that: A first annular groove (12) is provided on the outer wall of the propeller hub (1); a first annular portion (13) is integrally formed on one end of the rubber tube (6) connected to the propeller hub (1); the first annular portion (13) is located in the first annular groove (12); a first pressure ring (14) is tightly fitted on the first annular portion (13); a mounting hole is provided on the first pressure ring (14); a bolt (15) is provided in the mounting hole; the bottom end of the bolt passes through the first annular portion (13) and is screwed into the first annular groove (12).

3. The automatic pitch-adjustable propeller adjustment assembly according to claim 1, characterized in that: A second annular groove (16) is provided on the side wall of the blade (5); a second annular portion (17) is integrally formed on one end of the rubber tube (6) connected to the blade (5); the second annular portion (17) is located in the second annular groove (16); a second pressure ring (18) is sleeved on the outside of the second annular portion (17); a mounting hole is provided on the second pressure ring (18); a bolt (15) is provided in the mounting hole; an end of the bolt (15) passes through the second annular portion (17) and is screwed into the second annular groove (16).

4. The automatic pitch-adjustable propeller adjustment assembly according to claim 3, characterized in that: The second pressure ring (18) comprises a first half ring and a second half ring.

5. The automatic pitch-adjustable propeller adjustment assembly according to claim 3, characterized in that: A circular groove (19) is provided on the side wall of the end of the bolt (15), a circular ring (20) is rotatably mounted in the circular groove (19), and a connecting rope (21) is fixedly mounted on the outer side wall of the circular ring (20).

6. The automatic pitch-adjustable propeller adjustment assembly according to claim 3, characterized in that: A cross groove (22) is provided at the top of the end of the bolt (15).

Images