CN112572767A

CN112572767A - Pitch-varying actuating mechanism of electronic pitch-varying device of propeller

Info

Publication number: CN112572767A
Application number: CN202011453814.2A
Authority: CN
Inventors: 潘新旗; 钱大海; 满延涛; 洪俊; 麻经飞
Original assignee: Anhui Xoar Aerotech Co ltd
Current assignee: Anhui Xoar Aerotech Co ltd
Priority date: 2020-12-12
Filing date: 2020-12-12
Publication date: 2021-03-30

Abstract

The invention discloses a pitch-changing actuating mechanism of an electronic pitch-changing device of a propeller, which comprises: the box, the inside of box is provided with the baffle, the standing groove has been seted up at the top of baffle, the baffle passes through the standing groove has placed the displacement screw, the first motor of top fixedly connected with on box right side. Through starting first motor, the drive rotates the screw rod and rotates, make the movable plate remove about, start the second motor simultaneously, it rotates to drive the flabellum, realize the comprehensive cooling to the displacement screw with this, the displacement screw cooling to after using that this structure can be quick, before next use, realize the cooling with the fastest speed, increase the life of displacement screw, avoid the existence of potential safety hazard, the emergence of accident has been reduced, place in the standing groove in the box through the displacement screw, when rocking appearing, baffle extrusion buffer spring produces a bounce, thereby alleviate and rock, play buffering absorbing effect.

Description

Pitch-varying actuating mechanism of electronic pitch-varying device of propeller

Technical Field

The invention relates to a variable pitch propeller, in particular to a variable pitch actuating mechanism of an electronic variable pitch device of a propeller.

Background

The variable pitch propeller is a propeller which can automatically (or manually) change the blade angle according to the flying speed and the flying height during flying, the advancing speed is low during flying, the variable pitch device reduces the blade angle of the propeller, so that the engine can work under the maximum rotating speed and the maximum power state, and the propeller generates the maximum pulling force.

After the variable pitch propeller is used, the structure of the variable pitch propeller generates a lot of heat, in the prior art, the variable pitch propeller is placed in an external environment for cooling after being used, the cooling time of the method is long, the variable pitch propeller is probably used when the cooling is not finished, the service life of the variable pitch propeller is shortened after the cooling, and the scalding variable pitch propeller is subsequently used, so that the safety hazard exists, and accidents can occur.

Accordingly, a pitch actuator of an electronic pitch device of a propeller is provided by those skilled in the art to solve the problems set forth in the background art described above.

Disclosure of Invention

The present invention is directed to a pitch actuator of an electronic pitch device of a propeller, so as to solve the problems of the related art.

In order to achieve the purpose, the invention provides the following technical scheme:

a pitch actuator of an electronic pitch device of a propeller, comprising: the box, the inside of box is provided with the baffle, the standing groove has been seted up at the top of baffle, the baffle passes through the variable pitch screw has been placed to the standing groove, the first motor of top fixedly connected with on box right side, the one end fixedly connected with of first motor output shaft rotates the screw rod, rotate the screw rod rotate connect in the left side of box inner wall, the surface threaded connection who rotates the screw rod has the movable plate, fixedly connected with slide bar between the left and right sides of box inner wall, the surface cup joints of slide bar the movable plate, the bottom fixedly connected with second motor of movable plate, the one end fixedly connected with fan axle of second motor output shaft, the equal fixedly connected with flabellum in the left and right sides of fan axle.

As a further scheme of the invention: the left and right sides of box has all seted up the spout, the box passes through spout sliding connection has the slide bar, one side fixed connection of slide bar in one side of baffle.

As a still further scheme of the invention: two dashpots have been seted up to the bottom of baffle, the buffer beam has been cup jointed to the bottom of dashpot, buffer beam fixed connection in the bottom of box inner wall, the buffer board has been cup jointed to the surface of buffer beam, buffer board fixed connection in the bottom of baffle.

As a still further scheme of the invention: buffer spring has been cup jointed to the surface of buffer beam, buffer spring fixed connection in the bottom of buffer board with between the both sides of the bottom of box inner wall.

As a still further scheme of the invention: the surface of the box body is hinged with a box door, and the surface of the box door is provided with a handle.

As a still further scheme of the invention: the variable pitch propeller comprises a body, wherein a servo motor is arranged on the right side of the body, a generator is arranged on the right side of the servo motor, blades are arranged at the top and the bottom of the body, and a ball screw is arranged inside the body.

Compared with the prior art, the invention has the beneficial effects that:

1. through starting first motor, drive and rotate the screw rod and rotate for the movable plate removes about, starts the second motor simultaneously, drives the flabellum and rotates, realizes the comprehensive cooling to the displacement screw with this to, and the displacement screw cooling after using that this structure can be quick before next use, realizes the cooling with the fastest speed, increases the life of displacement screw, avoids the existence of potential safety hazard, has reduced the emergence of accident.

2. The variable pitch propeller is placed in the placing groove in the box body, when the variable pitch propeller shakes, the baffle extrudes the buffer spring to generate a rebound force, so that the shaking is reduced, and the effect of buffering and shock absorption is achieved.

Drawings

Fig. 1 is a schematic structural view of the inside of a pitch actuator of an electronic pitch device for a propeller.

Fig. 2 is a schematic structural diagram of a variable pitch propeller in a variable pitch actuator of an electronic variable pitch device of the propeller, which is viewed from above.

Fig. 3 is a schematic view showing the structure of the outside of a pitch actuator of an electronic pitch device for a propeller.

In the figure: the device comprises a box body 1, a partition plate 2, a placing groove 3, a variable pitch propeller 4, a first motor 5, a rotating screw 6, a moving plate 7, a sliding rod 8, a second motor 9, a fan shaft 10, fan blades 11, a sliding chute 12, a sliding rod 13, a buffer groove 14, a buffer rod 15, a buffer spring 16, a box door 17, a handle 18 and a buffer plate 19.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1 to 3, in an embodiment of the present invention, a pitch-varying executing mechanism of an electronic pitch varying device of a propeller includes: the box 1, the inside of box 1 is provided with baffle 2, standing groove 3 has been seted up at the top of baffle 2, baffle 2 passes through displacement propeller 4 has been placed to standing groove 3, the first motor 5 of top fixedly connected with on box 1 right side, the one end fixedly connected with of first motor 5 output shaft rotates screw rod 6, rotate screw rod 6 rotate connect in the left side of box 1 inner wall, the surface threaded connection who rotates screw rod 6 has movable plate 7, fixedly connected with slide bar 8 between the left and right sides of box 1 inner wall, the surface of slide bar 8 cup joints movable plate 7, the bottom fixedly connected with second motor 9 of movable plate 7, the one end fixedly connected with fan axle 10 of second motor 9 output shaft, the equal fixedly connected with flabellum 11 in the left and right sides of fan axle 10.

The sponge has been filled up to standing groove 3's inside, can protect variable pitch screw 4, first motor 5 sets up to servo motor, can realize a period of corotation, then reverse, moving plate 7 will be under the effect of rotating screw 6 like this, move left, then move right again, realize the turn-round in turn with this, two gag lever posts have been cup jointed to slide bar 8's surface, these two gag lever posts can carry on spacingly to moving plate 7, distance between two gag lever posts, just can make flabellum 11 cool off variable pitch screw 4 when getting up wholly when rotating, the thread groove has been seted up to moving plate 7's inside, moving plate 7 passes through the thread groove and rotates 6 threaded connection of screw.

Through starting first motor 5, it rotates to drive rotation screw 6, make movable plate 7 remove about, start second motor 5 simultaneously, drive flabellum 11 and rotate, realize the comprehensive cooling to displacement screw 4 with this, this structure can be quick the displacement screw 4 cooling after the use, before next use, realize the cooling with the fastest speed, increase displacement screw 4's life, avoid the existence of potential safety hazard, the emergence of accident has been reduced, place in standing groove 3 in box 1 through displacement screw 4, when rocking appearing, 2 extrusion buffer spring 16 of baffle produce a bounce, thereby alleviate and rock, play buffering absorbing effect.

The left side and the right side of the box body 1 are both provided with sliding grooves 12, the box body 1 is connected with sliding rods 13 in a sliding mode through the sliding grooves 12, and one side of each sliding rod 13 is fixedly connected to one side of the partition board 2.

Slide bar 13 slides in spout 12, can restrict rocking of baffle 2, and when box 1 took place to rock, baffle 2 only can rock from top to bottom.

Two buffer slots 14 have been seted up to the bottom of baffle 2, buffer rod 15 has been cup jointed to the bottom of buffer slot 14, buffer rod 15 fixed connection in the bottom of 1 inner wall of box, buffer plate 19 has been cup jointed to the surface of buffer rod 15, buffer plate 19 fixed connection in the bottom of baffle 2.

The outer surface of the buffer rod 15 is sleeved with a buffer spring 16, and the buffer spring 16 is fixedly connected between the bottom of the buffer plate 19 and two sides of the bottom of the inner wall of the box body 1.

When baffle 2 rocked, can extrude buffer spring 16, in buffer beam 15 can stretch into buffer slot 14, the elasticity that buffer spring 16 produced can alleviate rocking of baffle 2 to this realizes the absorbing effect of buffering for protection to displacement screw 4.

The surface of the box body 1 is hinged with a box door 17, and the surface of the box door 17 is provided with a handle 18.

The pitch-variable propeller 4 comprises a body, wherein a servo motor is arranged on the right side of the body, a generator is arranged on the right side of the servo motor, blades are arranged at the top and the bottom of the body, and a ball screw is arranged in the body.

The working principle of the invention is as follows:

the door 17 of the box is opened by the handle 18, the used variable pitch propeller 4 is placed in the placing groove 3 of the clapboard 2, the door 17 of the box is closed, the first motor 5 is started, the first motor 5 drives the rotating screw rod 6 to rotate, the moving plate 7 moves left and right along with the rotation of the rotating screw rod 6, thereby driving the second motor 9 to move, starting the second motor 9 at the same time, enabling the fan shaft 10 to drive the fan blades 11 to rotate by the second motor 9, so as to generate wind and comprehensively cool the variable pitch propeller 4, when the box body 1 shakes, the sliding rods 13 at the two sides of the clapboard 2 slide in the sliding grooves 12, the clapboard 2 extrudes the buffer springs 16, the buffer rods 15 can extend into the buffer grooves 14, the buffer springs 16 can produce elastic force, therefore, the shaking of the internal structure of the box body 1 is reduced, the abrasion between the structures is reduced, the service life of the structures is prolonged, and the variable pitch propeller 4 is protected.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A pitch-change actuator of an electronic pitch-change device of a propeller, comprising: a box body (1), characterized in that, a partition plate (2) is provided inside the box body (1), and the partition plate ( 2) The top of the box (1) is provided with a placement slot (3), the partition plate (2) is placed with a variable-pitch propeller (4) through the placement slot (3), and the top of the right side of the box (1) is fixedly connected with a A first motor (5), one end of the output shaft of the first motor (5) is fixedly connected with a rotating screw (6), and the rotating screw (6) is rotatably connected to the left side of the inner wall of the box (1), A moving plate (7) is threadedly connected to the outer surface of the rotating screw (6), and a sliding rod (8) is fixedly connected between the left and right sides of the inner wall of the box body (1). The outer surface is sleeved with the moving plate (7), a second motor (9) is fixedly connected to the bottom of the moving plate (7), and a fan shaft (10) is fixedly connected to one end of the output shaft of the second motor (9). ), and fan blades (11) are fixedly connected to the left and right sides of the fan shaft (10).

2 . The pitch-change actuator of an electronic pitch-change device of a propeller according to claim 1 , wherein the box body ( 1 ) is provided with a chute ( 12 ) on both the left and right sides, and the box body ( 1 ) A sliding rod (13) is slidably connected to the body (1) through the sliding groove (12), and one side of the sliding rod (13) is fixedly connected to one side of the partition plate (2).

3 . The pitch-change actuator of an electronic pitch-change device of a propeller according to claim 1 , wherein two buffer grooves ( 14 ) are opened at the bottom of the partition plate ( 2 ), and the buffer grooves A buffer rod (15) is sleeved on the bottom of the (14), the buffer rod (15) is fixedly connected to the bottom of the inner wall of the box (1), and a buffer plate is sleeved on the outer surface of the buffer rod (15). (19), the buffer plate (19) is fixedly connected to the bottom of the partition plate (2).

4 . The pitch-change actuator of an electronic pitch-change device of a propeller according to claim 3 , wherein a buffer spring ( 16 ) is sleeved on the outer surface of the buffer rod ( 15 ), and the buffer spring (16) is fixedly connected between the bottom of the buffer plate (19) and both sides of the bottom of the inner wall of the box body (1).

5 . The pitch-change actuator of an electronic pitch-change device for a propeller according to claim 1 , wherein a box door ( 17 ) is hinged on the surface of the box body ( 1 ), and the box door ( 17 ). ) is provided with a handle (18).

6. The pitch-change actuator of an electronic pitch-change device of a propeller according to claim 1, wherein the pitch-change propeller (4) comprises a main body, and a servo motor is provided on the right side of the main body, so that the The right side of the servo motor is provided with a generator, the top and bottom of the main body are provided with blades, and the inside of the main body is provided with a ball screw.