阅读说明：本技术 一种轻型飞机升降舵软式操纵装置 (Soft operating device for light aircraft elevator ) 是由 孙青云 李宗蓬 吴益晓 付云伟 石雷雷 何畏 胡瀚杰 陈全龙 曾宪君 于 2020-06-24 设计创作，主要内容包括：本发明公开了一种能满足结构简单性能高检修维护方便,可靠性高经济性较好的轻型飞机升降舵操纵装置。包括：包括双头摇臂,双头摇臂的中部铰接于机身上；驾驶杆,连接于双头摇臂上端；升降舵前端摇臂,升降舵前端摇臂的中部铰接于机身上；升降舵尾部摇臂,升降舵尾部摇臂的中部铰接于机身尾端,升降舵尾部摇臂的两端分别通过一根钢索与升降舵前端摇臂的两端连接；升降舵拉杆,升降舵拉杆的前端铰接于双头摇臂下端,升降舵拉杆的后端铰接于升降舵前端摇臂的侧部,用于拉动升降舵前端摇臂旋转；升降舵前端摇臂沿平面设置,升降舵尾部摇臂沿竖向设置,并通过安装在机身上的滑轮组合改变钢索的走线方向,防止两根钢索发生干涉。(The invention discloses a light aircraft elevator control device which is simple in structure, high in performance, convenient to overhaul and maintain, high in reliability and good in economical efficiency. The method comprises the following steps: the double-head rocker arm is hinged to the machine body in the middle; the steering rod is connected to the upper end of the double-head rocker arm; the middle part of the front end rocker arm of the elevator is hinged on the machine body; the middle part of the tail rocker arm of the elevator is hinged to the tail end of the machine body, and two ends of the tail rocker arm of the elevator are respectively connected with two ends of the front rocker arm of the elevator through a steel cable; the front end of the elevator pull rod is hinged to the lower end of the double-end rocker arm, and the rear end of the elevator pull rod is hinged to the side part of the elevator front-end rocker arm and used for pulling the elevator front-end rocker arm to rotate; the rocker arm at the front end of the elevator is arranged along a plane, the rocker arm at the tail part of the elevator is arranged along the vertical direction, and the routing direction of the steel cables is changed through the pulley combination arranged on the machine body, so that the interference of the two steel cables is prevented.)

1. A light aircraft elevator soft steering apparatus comprising:

the double-head rocker arm is hinged to the machine body in the middle;

the steering rod is connected to the upper end of the double-head rocker arm and used for controlling the double-head rocker arm to rotate;

the middle part of the front end rocker arm of the elevator is hinged on the machine body;

the middle part of the tail rocker arm of the elevator is hinged to the tail end of the machine body, and two ends of the tail rocker arm of the elevator are respectively connected with two ends of the front rocker arm of the elevator through a steel cable to form soft operation;

the front end of the elevator pull rod is hinged to the lower end of the double-end rocker arm, and the rear end of the elevator pull rod is hinged to the side part of the elevator front-end rocker arm and used for pulling the elevator front-end rocker arm to rotate;

the elevator is characterized in that the rocker arm at the front end of the elevator is arranged along a plane, the rocker arm at the tail of the elevator is arranged vertically, the routing direction of the steel cables is changed through the pulley combination arranged on the machine body, and the interference of the two steel cables is prevented.

2. A light aircraft elevator soft steering system according to claim 1 wherein: each steel cable comprises a front section and a rear section which are connected together through an elastic threaded sleeve.

3. A light aircraft elevator soft steering system according to claim 2 wherein: the lengths of the front section and the rear section of the steel cable are equal, so that the elastic thread sleeve is positioned in the middle of the steel cable.

4. A light aircraft elevator soft steering system according to claim 1 wherein: the front end of the middle part of the rocker arm at the tail part of the elevator is provided with a hinge hole and is hinged to the tail end of the machine body, the rear end of the middle part of the elevator is provided with a bolt hole and is fixedly connected with the elevator, and the upper end and the lower end of the rocker arm at the tail part of the elevator are respectively connected with corresponding steel cables.

5. A light aircraft elevator soft steering system according to claim 1 wherein: two ends of the steel cable are respectively provided with a steel cable joint, the tail end of the steel cable is pressed in the corresponding steel cable joint, and the steel cable is respectively connected with the front end rocker arm of the elevator and the tail rocker arm of the elevator through the steel cable joints.

6. A light aircraft elevator soft steering system according to claim 1 wherein: the pulley combination comprises two steering pulleys, each steering pulley is correspondingly arranged at the front part of one steel cable, and the steel cable behind the steering pulleys is converted into vertical arrangement.

7. A light aircraft elevator soft steering system according to claim 6 wherein: the pulley combination further comprises a plurality of limiting tensioning pulleys, and the limiting tensioning pulleys are arranged behind the steering pulleys and used for limiting and tensioning the steel cable.

8. A light aircraft elevator soft steering system according to claim 1 wherein: the upper end of the double-end rocker arm is in sliding fit with the two sliding rails.

Technical Field

The invention relates to the technical field of general aviation, in particular to a soft operating device for a light aircraft elevator.

Background

The soft control device for airplane elevator is a common device on airplane with no-power mechanical transmission type flight control system, and the primary and secondary pilot can control the device independently. The primary function is to control the elevator yaw to control the pitching motion of the aircraft. The pilot pulls and pushes the steering column forwards, the double-end rocker arm rotates around the bottom fixed shaft to control the elevator to deflect up and down, and the elevator generates a moment for deflecting the aircraft nose upwards or downwards under the action of aerodynamic force, so that the course of the aircraft is changed. The operating device of the existing elevator adopts the transmission of a pull rod rocker arm and the like, so that the whole weight is large, the structural connection performance is low, the overhauling and maintenance difficulty is large, and the whole reliability of the system is low, and the economical efficiency is poor.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide the light aircraft elevator control device which has the advantages of simple structure, high performance, high reliability and good economical efficiency, and is convenient to overhaul and maintain.

The purpose of the invention is realized as follows:

a light aircraft elevator soft steering apparatus comprising:

the double-head rocker arm is hinged to the machine body in the middle;

the steering rod is connected to the upper end of the double-head rocker arm and used for controlling the double-head rocker arm to rotate;

the middle part of the front end rocker arm of the elevator is hinged on the machine body;

the middle part of the tail rocker arm of the elevator is hinged to the tail end of the machine body, and two ends of the tail rocker arm of the elevator are respectively connected with two ends of the front rocker arm of the elevator through a steel cable to form soft operation;

the front end of the elevator pull rod is hinged to the lower end of the double-end rocker arm, and the rear end of the elevator pull rod is hinged to the side part of the elevator front-end rocker arm and used for pulling the elevator front-end rocker arm to rotate;

the rocker arm at the front end of the elevator is arranged along a plane, the rocker arm at the tail part of the elevator is arranged along the vertical direction, and the routing direction of the steel cables is changed through the pulley combination arranged on the machine body, so that the interference of the two steel cables is prevented.

Preferably, each steel cable comprises a front section and a rear section, and the front section and the rear section of each steel cable are connected together through a tightening screw sleeve.

Preferably, the lengths of the front section and the rear section of the steel cable are equal, so that the elastic thread sleeve is positioned in the middle of the steel cable.

Preferably, the front end of the middle part of the rocker arm at the tail part of the elevator is provided with a hinge hole and is hinged to the tail end of the machine body, the rear end of the middle part of the elevator is provided with a bolt hole and is fixedly connected with the elevator, and the upper end and the lower end of the rocker arm at the tail part of the elevator are respectively connected with the corresponding steel cables.

Preferably, two ends of the steel cable are respectively provided with a steel cable joint, the tail end of the steel cable is pressed in the corresponding steel cable joint, and the steel cable is respectively connected with the front end rocker arm of the elevator and the tail rocker arm of the elevator through the steel cable joints.

Preferably, the pulley combination comprises two diverting pulleys, each diverting pulley is correspondingly arranged at the front part of one steel cable, and the steel cable behind the diverting pulleys is converted into a vertical arrangement.

Preferably, the pulley combination further comprises a plurality of limiting tensioning pulleys, and the limiting tensioning pulleys are arranged behind the steering pulleys and used for limiting and tensioning the steel cable.

Preferably, the upper end of the double-ended rocker arm is in sliding fit with the two sliding rails.

Due to the adoption of the technical scheme, the invention has the following beneficial effects:

the invention adopts a soft transmission system, has simple integral structure, light weight, high performance, convenient maintenance, low cost, high reliability and good economy; according to the elevator cable rope, the degree of freedom of the elevator cable rope is limited by the double-end rocker arm, the pulley combination and the elevator rocker arm combination, so that the elevator cable rope can only move along the routing of the pulleys, and the structure is reliable; the control on the deflection of the elevator can be finished only by pushing and pulling the steering column forwards and backwards by a driver, so that the elevator is flexible to operate and easy to master; the transmission system adopts the steel cable linear transmission, so the manufacturing cost is low, and the cost is saved.

Drawings

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

FIG. 2 is a schematic view of the front part of the present invention;

fig. 3 is a schematic structural view of the tail part of the present invention.

Reference numerals

In the attached drawing, 1 is a double-end rocker arm, 2 is an elevator pull rod, 3 is an elevator front end rocker arm, 4 is a steel cable, 5 is a limiting tension pulley, 6 is an elastic threaded sleeve, 7 is an elevator tail rocker arm, 8 is an elevator, 9 is a steering rod, 10 is a slide rail, 11 is a steel cable joint, and 12 is a steering pulley.

Detailed Description

Referring to fig. 1 to 3, a soft steering device for a light aircraft elevator, includes: the double-head rocker arm is hinged to the machine body in the middle; the steering rod is connected to the upper end of the double-head rocker arm and used for controlling the double-head rocker arm to rotate; the middle part of the front end rocker arm of the elevator is hinged on the machine body; the middle part of the tail rocker arm of the elevator is hinged to the tail end of the machine body, and two ends of the tail rocker arm of the elevator are respectively connected with two ends of the front rocker arm of the elevator through a steel cable to form soft operation; the front end of the elevator pull rod is hinged to the lower end of the double-end rocker arm, and the rear end of the elevator pull rod is hinged to the side part of the elevator front-end rocker arm and used for pulling the elevator front-end rocker arm to rotate; the rocker arm at the front end of the elevator is arranged along a plane, the rocker arm at the tail part of the elevator is arranged along the vertical direction, and the routing direction of the steel cables is changed through the pulley combination arranged on the machine body, so that the interference of the two steel cables is prevented.

Each steel cable comprises a front section and a rear section which are connected together through an elastic threaded sleeve. The lengths of the front section and the rear section of the steel cable are equal, so that the elastic thread sleeve is positioned in the middle of the steel cable. Two ends of the steel cable are respectively provided with a steel cable joint, the tail end of the steel cable is pressed in the corresponding steel cable joint, and the steel cable is respectively connected with the front end rocker arm of the elevator and the tail rocker arm of the elevator through the steel cable joints. The steel cable has light weight and high strength, and transmits a motion main part in the operation process. The elastic thread sleeves are arranged in the middle of the wire routing of the steel cable, so that the length of the steel cable is segmented, the weight sag of the steel cable due to long wire routing is reduced, the tension of the steel cable can be adjusted, and the adjustment of actual demand parameters is facilitated.

The front end of the middle part of the rocker arm at the tail part of the elevator is provided with a hinge hole and is hinged to the tail end of the machine body, the rear end of the middle part of the elevator is provided with a bolt hole and is fixedly connected with the elevator, and the upper end and the lower end of the rocker arm at the tail part of the elevator are respectively connected with corresponding steel cables.

The pulley combination comprises two steering pulleys, each steering pulley is correspondingly arranged at the front part of one steel cable, and the steel cable behind the steering pulleys is converted into vertical arrangement. The pulley combination further comprises a plurality of limiting tensioning pulleys, and the limiting tensioning pulleys are arranged behind the steering pulleys and used for limiting and tensioning the steel cable. The pulley combination can make the steel cable tense and play a guiding role, so that the steel cable moves in a specified range.

The upper end of the double-end rocker arm is in sliding fit with the two sliding rails. The double-end rocker arm is Y-shaped, and the double-end rocker arm moves in the sliding rail to transfer motion by pushing and pulling the steering column. The front end and the rear end of the elevator pull rod are of fork-shaped structures, the arrangement direction is vertical, the hinge joint is convenient, joint bearings are arranged at the hinge joints, and the direction can be adjusted according to actual requirements to avoid blocking. The rocker arm structure at the front end of the elevator and the rocker arm structure at the tail part of the elevator are fan-shaped, so that the arrangement of the connecting positions is convenient.

The soft operating device of the elevator has the working principle that:

the elevator control device adopts a soft transmission system, when a driver pulls a steering rod, the double-end rocker arm slides towards the driver in the left and right slide rails, the lower ends of the double-end rocker arm rotate forwards simultaneously to drive the elevator pull rod 2 to move forwards, meanwhile, the elevator pull rod pulls the elevator front end rocker arm 3 to rotate anticlockwise to drive the right steel cable to move forwards, and the upper end of the elevator tail rocker arm 7 drives the elevator 8 to deflect upwards to slide forwards; similarly, when a driver pushes the steering rod, the lower end of the rocker arm at the front end is driven to rotate backwards, so that the left steel cable moves forwards, and the lower end of the rocker arm at the tail part of the elevator rotates forwards to drive the elevator to deflect and slide downwards.

Finally, it is noted that the above-mentioned preferred embodiments illustrate rather than limit the invention, and that, although the invention has been described in detail with reference to the above-mentioned preferred embodiments, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the scope of the invention as defined by the appended claims.