CN211196594U

CN211196594U - High-efficiency adjustable-pitch propeller

Info

Publication number: CN211196594U
Application number: CN201922335282.1U
Authority: CN
Inventors: 何峰林
Original assignee: ZHENJIANG JINYE PROPELLER CO Ltd
Current assignee: ZHENJIANG JINYE PROPELLER CO Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2020-08-07
Anticipated expiration: 2029-12-24

Abstract

The utility model discloses a high-efficient adjustable pitch screw, its structure includes the propeller hub, the transmission hole, paddle and adjustment mechanism, the utility model discloses the dwang drives and rotates the cylinder and rotates, rotates the cylinder and drives the paddle simultaneously and rotate regulation pitch, and can separate the second screw rod from fixed column and block, then can be with paddle and propeller hub phase separation, reached the regulation to the pitch of screw, the screw can match multiple engine, and can install in the dismantlement fast to the paddle, solved when the screw is using, because the screw pitch is fixed, paddle in the screw needs to be changed, leaded to screw and partial engine and can not match the use, and the paddle of screw need consume the problem of more time at the change in-process.

Description

High-efficiency adjustable-pitch propeller

Technical Field

The utility model relates to a screw technical field, concretely relates to high-efficient adjustable pitch screw.

Background

The propeller is a device which rotates in the air or water by the paddle and converts the rotating power of an engine into propulsive force, two or more blades can be connected with a hub, the backward surface of each blade is a spiral surface or a propeller similar to the spiral surface, the propeller is divided into a plurality of propellers, the propeller is widely applied, such as the propeller of an airplane or a ship, the propeller can be regarded as a wing which rotates and advances simultaneously for discussion, and the airflow flowing through each section of the paddle is synthesized by the advancing speed along the direction of a rotating shaft and the tangential speed generated by rotation.

When the propeller is used, the propeller pitch is fixed, and blades in the propeller need to be replaced, so that the propeller and part of the engine cannot be matched for use, and more time needs to be consumed in the replacement process of the blades of the propeller.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to overcome the defects of the prior art, the high-efficiency adjustable-pitch propeller is provided, and the problems that when the propeller is used, the propeller and part of engines cannot be matched for use due to the fact that the pitch of the propeller is fixed and blades in the propeller need to be replaced, and more time needs to be consumed in the replacement process are solved.

(II) technical scheme

The utility model discloses a following technical scheme realizes: the utility model provides a high-efficiency screw propeller with adjustable pitch, which comprises a propeller hub, a paddle and an adjusting mechanism, wherein the middle part of the propeller hub is provided with a transmission hole, the side surface of the propeller hub is fixedly connected with the paddle, the adjusting mechanism is arranged at the top part of the propeller hub, the adjusting mechanism consists of a first screw rod, a rotating cylinder, a fixed block, a second screw rod, a mounting groove, a fixed column and a clamping block, the first screw rod penetrates through the back end of the propeller hub, the rotating rod is in threaded connection with the front end surface of the propeller hub, the rotating cylinder is arranged at the right side surface in the propeller hub, the fixed block is welded with the top part of the paddle, the left end of the second screw rod penetrates through the fixed block, the mounting groove is arranged at the right end of the rotating cylinder, the fixed column is fixedly connected with the middle end in the mounting groove, the clamping block is welded with the, and the left end of the second screw rod is in threaded connection with the left side surface of the mounting groove.

Furthermore, a threaded hole is formed in the back of the hub and communicated with the space for installing the rotating cylinder.

Furthermore, a plurality of connecting holes are formed in the back of the rotating cylinder and are connected with the connecting holes to be distributed on the back of the rotating cylinder at equal angles.

Furthermore, the connecting hole in the rotating cylinder is in threaded connection with the first screw rod.

Furthermore, the clamping block structure is a C-shaped structure, and the diameter of the clamping block is smaller than that of the mounting groove.

Furthermore, the diameters of the fixing column and the concave part at the left end of the clamping block are the same, and the fixing column is tightly attached to the clamping block.

Further, both upper ends of the fixing column and the clamping block are provided with threaded holes, and the threaded holes are in threaded connection with the second screw rod.

Further, the hollow part in the mounting groove has the same structure as the clamping block, and the proportion of the clamping block to the hollow part in the mounting groove is 1: 1.2.

Furthermore, the rotating cylinder is made of stainless steel, so that the rotating cylinder is corrosion-resistant, not easy to corrode and free from pitting corrosion, corrosion or abrasion.

Furthermore, the second screw is made of aluminum alloy and has the advantages of low density, high strength and good corrosion resistance.

(III) advantageous effects

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

the utility model discloses the dwang drives and rotates the cylinder and rotates, it drives the paddle simultaneously and rotates regulation pitch to rotate the cylinder, and can separate the second screw rod from fixed column and block, then can be with paddle and propeller hub phase separation, reached the regulation to the pitch of screw, the screw can match multiple engine, and can install in the dismantlement fast to the paddle, solved when the screw is using, because the screw pitch is fixed, paddle in the screw needs to be changed, it can not match the use to have leaded to screw and partial engine, and the paddle of screw need consume the problem of more time at the change in-process.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a rear view structure diagram of the present invention;

FIG. 3 is a schematic structural view of an adjusting mechanism of the present invention;

FIG. 4 is a schematic view of the connection structure between the rotating cylinder and the blades of the present invention;

fig. 5 is an enlarged schematic structural diagram of a in fig. 4 according to the present invention.

In the figure: the propeller comprises a propeller hub-1, a transmission hole-2, a blade-3, an adjusting mechanism-4, a first screw rod-41, a rotating rod-42, a rotating cylinder-43, a fixed block-44, a second screw rod-45, a mounting groove-46, a fixed column-47 and a clamping block-48.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to fig. 1, 2, 3, 4 and 5, the present invention provides a high efficiency adjustable pitch propeller: the propeller comprises a propeller hub 1, a propeller blade 3 and an adjusting mechanism 4, wherein a transmission hole 2 is arranged in the middle of the propeller hub 1, the propeller blade 3 is fixedly connected to the side surface of the propeller hub 1, the adjusting mechanism 4 is arranged at the top of the propeller hub 1, the adjusting mechanism 4 comprises a first screw rod 41, a rotating rod 42, a rotating cylinder 43, a fixed block 44, a second screw rod 45, an installation groove 46, a fixed column 47 and a clamping block 48, the first screw rod 41 penetrates through the back end of the propeller hub 1, the first screw rod 41 can fix the rotating cylinder 43, the rotating rod 42 is in threaded connection with the front end surface of the propeller hub 1, the rotating cylinder 43 can be driven by the rotating rod 42 to rotate, the rotating cylinder 43 is arranged at the inner right side surface of the propeller hub 1, the fixed block 44 is welded with the top of the propeller blade 3, the left end of the second screw rod 45 penetrates through the fixed block 44, the installation groove 46 is arranged, and the left end of block 48 contacts with fixed column 47, improves the fixed effect of paddle 3 to second screw 45 left end runs through block 48 upper end, and second screw 45 left end and mounting groove 46 left surface threaded connection.

Wherein, the back of the propeller hub 1 is provided with a threaded hole, and the threaded hole is communicated with the installation rotating cylinder 43 in space, so that the first screw rod 41 can be fixed on the rotating cylinder 43 through the threaded hole.

The back of the rotating cylinder 43 is provided with a plurality of connecting holes, and the connecting holes are distributed on the back of the rotating cylinder 43 at equal angles, so that the first screw 41 can fix the rotating cylinder 43.

The connecting hole in the rotating cylinder 43 is in threaded connection with the first screw 41, so that the rotating cylinder 43 of the first screw 41 has a fixing effect.

The structure of the engaging block 48 is a C-shaped structure, and the diameter of the engaging block 48 is smaller than that of the mounting groove 46, so that the engaging block 48 is convenient to mount inside the mounting groove 46.

The diameters of the fixing column 47 and the recessed part at the left end of the clamping block 48 are the same, and the fixing column 47 and the clamping block 48 are tightly attached, so that the fixing effect of the paddle 3 is improved.

Wherein, both upper ends of fixed column 47 and block 48 all are equipped with the screw hole to screw hole and second screw 45 threaded connection between them cooperate second screw 45 to fix paddle 3.

The structure of the hollow part inside the mounting groove 46 is the same as that of the clamping block 48, the proportion of the clamping block 48 to the hollow part inside the mounting groove 46 is 1:1.2, and the clamping block 48 is improved to be mounted inside the mounting groove 46.

Wherein, the rotating cylinder 43 is made of stainless steel, and has the advantages of corrosion resistance, corrosion resistance and no pitting, corrosion or abrasion.

The second screw rod 45 is made of aluminum alloy and has the advantages of low density, high strength and good corrosion resistance.

This patent propeller hub 1 be the position that each paddle installation combines, be located the screw end, mostly be circular cone or round platform shape, laminate mutually with the stern axle, paste a keyway of department opening at the back, inlay with the key, it is that the stern axle drives the screw rotation.

The working principle is as follows: when using this equipment at first place this equipment in work area, when adjusting the pitch to the screw, the accessible is with first screw rod 41 with the connected hole separation of rotation cylinder 43 back end, then rotate dwang 42 and drive paddle 3 and adjust the pitch, and when paddle 3 need be maintained with the dismantlement, accessible fixed block 44 rotates second screw rod 45, make fixed column 47 and the block 48 phase separation of block 48 in second screw rod 45 and the mounting groove 46, and after second screw rod 45 separates with fixed column 47 and block 48, can take off paddle 3 from oar hub 1 upper end, reached the regulation to the pitch of screw, the screw can match multiple engine, and can dismantle the quick installation of paddle 3.

The basic principle and the main characteristics of the utility model and the advantages of the utility model have been shown and described above, and the utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the record of the description with the drawing, and the concrete connection mode of each part all adopts conventional means such as ripe bolt rivet among the prior art, welding, and machinery, part and equipment all adopt prior art, conventional model, and conventional connection mode in the prior art is adopted in addition to circuit connection, and the details are not repeated here.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. A high-efficiency adjustable-pitch propeller comprises a propeller hub (1) and blades (3), wherein a transmission hole (2) is formed in the middle of the propeller hub (1), and the blades (3) are fixedly connected to the side surface of the propeller hub (1);

the propeller is characterized by further comprising an adjusting mechanism (4), wherein the adjusting mechanism (4) is arranged at the top of the propeller hub (1), the adjusting mechanism (4) is composed of a first screw rod (41), a rotating rod (42), a rotating cylinder (43), a fixed block (44), a second screw rod (45), an installation groove (46), a fixed column (47) and a clamping block (48), the first screw rod (41) penetrates through the back end of the propeller hub (1), the rotating rod (42) is in threaded connection with the front end face of the propeller hub (1), the rotating cylinder (43) is arranged on the inner right side face of the propeller hub (1), the fixed block (44) is welded with the top of the propeller blade (3), the left end of the second screw rod (45) penetrates through the fixed block (44), the installation groove (46) is arranged at the right end of the rotating cylinder (43), the fixed column (47) is fixedly connected with the inner middle end of the installation groove (46), and the clamping block (48) is welded with the bottom of the rotating, and the left end of the clamping block (48) is in contact with the fixing column (47), the left end of the second screw (45) penetrates through the upper end of the clamping block (48), and the left end of the second screw (45) is in threaded connection with the left side face of the mounting groove (46).

2. A high efficiency variable pitch propeller as claimed in claim 1 wherein said hub (1) is provided with a tapped hole in the back and the tapped hole is spatially continuous with the mounting rotating cylinder (43).

3. The propeller as claimed in claim 1, wherein the rotary cylinder (43) is provided at a rear portion thereof with a plurality of coupling holes, and the coupling holes are equally angularly distributed at the rear portion of the rotary cylinder (43).

4. A propeller according to claim 1, characterised in that the connection hole in the rotating cylinder (43) is in threaded connection with the first threaded rod (41).

5. A high efficiency variable pitch propeller as claimed in claim 1, wherein said engagement block (48) is of C-shaped configuration and the diameter of the engagement block (48) is smaller than the diameter of the mounting slot (46).

6. The propeller as recited in claim 1, wherein the fixed post (47) has the same diameter as the recess in the left end of the engagement block (48), and the fixed post (47) is closely attached to the engagement block (48).

7. The propeller as claimed in claim 1, wherein the fixing post (47) and the engaging block (48) are provided with screw holes at upper ends thereof, and the screw holes are in threaded connection with the second screw (45).

8. The propeller as claimed in claim 1, wherein the hollow portion of the mounting groove (46) has the same structure as the engaging block (48), and the ratio of the engaging block (48) to the hollow portion of the mounting groove (46) is 1: 1.2.