Device for changing reciprocating linear motion into certain-angle rotation

Abstract

The invention belongs to the technical field of aviation engineering mechanism design, and relates to a device for changing reciprocating linear motion into certain-angle rotation. Comprising an input rocker arm, a support a, a pull rod, a rocker arm a, a support b, a connecting rod, a support c, an output rocker arm, a rotating shaft and a support d, the middle section of the input rocker arm is hinged to the support a, one end of the input rocker arm is hinged to the pull rod, and the other end of the input rocker arm is hinged to other devices doing reciprocating rectilinear motion; after reciprocating rectilinear motion is input, the input rocker arm drives the pull rod to reciprocate around a rotating shaft on the support a; two ends of the pull rod are respectively hinged with an input rocker arm and one end of a rocker arm a mounted on the support b; the other end of the pull rod is hinged to one end of the output rocker arm, and the other end of the output rocker arm is fixedly connected with the rotating shaft. The rotating shaft is hinged to the support c and the support d and can rotate around the axis of the rotating shaft.

Description

Technical Field

[0001] The invention belongs to the technical field of aviation engineering mechanism design, and relates to a device for converting reciprocating linear motion into rotation at a certain angle. Background Art

[0002] Devices that convert reciprocating linear motion into a certain angle of rotation are widely used in aviation engineering. In most aircraft without fly-by-wire systems, the pilot's control of the aircraft is mainly achieved by the transmission of this type of mechanism. At present, the existing devices that convert reciprocating linear motion into a certain angle of rotation are mostly implemented by a pull rod plus a rocker arm, that is, the pull rod performs reciprocating linear motion and pushes the rocker arm to achieve a certain angle of rotation. Its characteristic is that the input speed and output speed are in a linear relationship. Devices that convert reciprocating linear motion into a certain angle of rotation are widely used, but some specific occasions require a nonlinear relationship between the input speed and the output speed, and this mechanism cannot adapt. Summary of the invention

[0003] Purpose of the invention: To provide a device for converting reciprocating linear motion into rotation at a certain angle, so as to convert reciprocating linear motion in which the input speed and the output speed have a nonlinear relationship into rotation at a certain angle.

[0004] Technical solution:

[0005] A device for converting reciprocating linear motion into rotation at a certain angle, comprising: an input rocker arm 1, a support a 2, a pull rod 3, a rocker arm a 4, a support b 5, a connecting rod 6, a support c 7, an output rocker arm 8, a rotating shaft 9, and a support d 10, wherein:

[0006] The middle section of the input rocker arm 1 is hinged to the support a2, one end of the input rocker arm 1 is hinged to the pull rod 3, and the other end of the input rocker arm 1 is hinged to other devices that perform reciprocating linear motion; after the input reciprocating linear motion, the input rocker arm drives the pull rod to reciprocate around the rotating shaft on the support a2;

[0007] The two ends of the pull rod 3 are respectively hinged to the input rocker arm 1 and one end of the rocker arm a 4 mounted on the support b 5;

[0008] The other end of the rocker arm a 4 is hinged to one end of the pull rod 6, the other end of the pull rod 6 is hinged to one end of the output rocker arm 8, and the other end of the output rocker arm 8 is fixedly connected to the rotating shaft 9; the rotating shaft 9 is hingedly installed on the support c 7 and the support d 10, and can rotate around the axis of the rotating shaft 9.

[0009] Furthermore, the input rocker arm 1 is V-shaped, straight-line-shaped or U-shaped.

[0010] Furthermore, the hinged axial direction of the pull rod 3, the input rocker arm 1 and the rocker arm a 4 is a clearance fit.

[0011] Furthermore, the connecting rod 6 is hinged axially with the rocker arm a4 and the output rocker arm 8 in a clearance fit.

[0012] Furthermore, the connecting rod 6 is a connecting rod with adjustable length.

[0013] Furthermore, the support a2 and the support b5 are respectively located on both sides of the pull rod 3.

[0014] Furthermore, the rocker arm a4 is V-shaped, straight-line-shaped or U-shaped.

[0015] Furthermore, the pull rod 3 is linear or U-shaped.

[0016] Furthermore, a mounting groove is provided on the support a2, the middle section of the input rocker arm 1 is hinged to the side wall of the mounting groove, and the other side wall of the mounting groove limits the movement angle of the input rocker arm 1.

[0017] Beneficial effects:

[0018] The invention discloses a device for converting reciprocating linear motion into a certain angle rotation, which adds a pull rod to the traditional device for converting reciprocating linear motion into a certain angle rotation, thereby realizing a nonlinear relationship between input speed and output speed. The invention provides a new device for converting reciprocating linear motion into a certain angle rotation, which has a simple structure and is flexible to disassemble and assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a front view of the schematic diagram of the structure of reciprocating linear motion changing to a certain angle of rotation;

[0020] Figure 2 It is a top view of the schematic diagram of the structure of reciprocating linear motion changing to a certain angle of rotation;

[0021] Among them: 1. input rocker arm, 2. support a, 3. pull rod, 4. rocker arm a, 5. support b, 6. connecting rod, 7. support c, 8. output rocker arm, 9. rotating shaft, 10. support d. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical scheme and advantages of the implementation of this application clearer, the technical scheme in the implementation of this application will be described in more detail in combination with the drawings in the implementation of this application. In the drawings, the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The described implementation is a part of the implementation of this application, not all of the implementations. The implementation described below with reference to the drawings is exemplary and is intended to be used to explain this application, and cannot be understood as a limitation on this application. Based on the implementation in this application, all other implementations obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application. The implementation of this application is described in detail below in combination with the drawings.

[0023] In the description of the present invention, it is necessary to understand that the terms "center", "axial", "vertical", "up", "down", "upper end", "bottom end", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present invention.

[0024] like Figure 1 As shown, a device for converting reciprocating linear motion into rotation at a certain angle is provided, comprising: an input rocker arm 1, a support a 2, a pull rod 3, a rocker arm a 4, a support b 5, a connecting rod 6, a support c 7, an output rocker arm 8, a rotating shaft 9, and a support d 10.

[0025] The input rocker arm is installed on the support a and can rotate around the mounting shaft. One end of the rocker arm is hinged to the pull rod, and the other end is hinged to other devices that perform reciprocating linear motion. After the input reciprocating linear motion, the input rocker arm drives the pull rod to reciprocate around the shaft on the support a.

[0026] The two ends of the tie rod are respectively hinged to the input rocker arm and the rocker arm a installed on the support b. The other end of the rocker arm a is hinged to the connecting rod, and the other end of the connecting rod is hinged to the output rocker arm, and the output rocker arm is fixedly connected to the rotating shaft. The rotating shaft is installed on the support c and the support d and can rotate around its axis. That is, the tie rod pushes the rocker arm a to rotate around its installation axis on the support b, thereby driving the connecting rod to move. The connecting rod pushes the output rocker arm and drives the rotating shaft to rotate, thereby achieving a certain angle of rotation.

[0027] The nonlinear relationship between input speed and output speed is achieved due to the presence of the tie rod. Figure 1 As shown, the input rocker arm is in the neutral position at this time. When the input rocker arm deflects to the left by a certain angle, the rotation angle of the input rocker arm relative to the drawbar hinge axis is greater than the rotation angle of rocker arm a relative to the drawbar hinge axis, and the rotation speed of rocker arm a around support b decreases, resulting in a slowdown in the rotation speed of the rotating shaft; when the input rocker arm deflects to the right by a certain angle, the rotation angle of the input rocker arm relative to the drawbar hinge axis is less than the rotation angle of rocker arm a relative to the drawbar hinge axis, and the rotation speed of rocker arm a around support b increases, resulting in an increase in the rotation speed of the rotating shaft. Thus, a nonlinear relationship between the input speed and the output speed is achieved.

[0028] The pull rod is used to realize the nonlinear relationship between input speed and output speed. This changes the characteristic of the traditional reciprocating linear motion to a certain angle rotation device where the input speed and output speed have a linear relationship. The device has a simple structure, is easy to disassemble and assemble, and has strong processability.

[0029] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed in the present application should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A device for converting reciprocating linear motion into rotation at a certain angle, characterized in that: include: Input rocker arm (1), support a (2), tie rod (3), rocker arm a (4), support b (5), connecting rod (6), support c (7), output rocker arm (8), rotating shaft (9), support d (10), wherein: The middle section of the input rocker arm (1) is hinged to the support a (2), one end of the input rocker arm (1) is hinged to the pull rod (3), and the other end of the input rocker arm (1) is hinged to other devices that perform reciprocating linear motion; after the input reciprocating linear motion, the input rocker arm drives the pull rod to reciprocate around the rotating shaft on the support a (2); The two ends of the pull rod (3) are respectively hinged to the input rocker arm (1) and one end of the rocker arm a (4) mounted on the support b (5); The other end of the rocker arm a (4) is hinged to one end of the pull rod (6), the other end of the pull rod (6) is hinged to one end of the output rocker arm (8), and the other end of the output rocker arm (8) is fixedly connected to the rotating shaft (9); the rotating shaft (9) is hingedly mounted on the support c (7) and the support d (10) and can rotate around the axis of the rotating shaft (9).

2. The device for converting reciprocating linear motion into rotation at a certain angle according to claim 1, characterized in that: The input rocker arm (1) is V-shaped, straight-line or U-shaped.

3. The device for converting reciprocating linear motion into rotation at a certain angle according to claim 2, characterized in that: The pull rod (3) is hinged axially with the input rocker arm (1) and the rocker arm a (4) in a clearance fit.

4. The device for converting reciprocating linear motion into rotation at a certain angle according to claim 3, characterized in that: The connecting rod (6) is hinged with the rocker arm a (4) and the output rocker arm (8) in a clearance fit in the axial direction.

5. The device for converting reciprocating linear motion into rotation at a certain angle according to claim 4, characterized in that: The connecting rod (6) is an adjustable length connecting rod.

6. The device for converting reciprocating linear motion into rotation at a certain angle according to claim 1, characterized in that: The support a (2) and the support b (5) are respectively located on both sides of the pull rod (3).

7. The device for converting reciprocating linear motion into rotation at a certain angle according to claim 1, characterized in that: The rocker arm a (4) is V-shaped, straight-line-shaped or U-shaped.

8. The device for converting reciprocating linear motion into rotation at a certain angle according to claim 1, characterized in that: The pull rod (3) is straight or U-shaped.

9. The device for converting reciprocating linear motion into rotation at a certain angle according to claim 1, characterized in that: The support a (2) is provided with a mounting groove, the middle section of the input rocker arm (1) is hinged to the side wall of the mounting groove, and the other side wall of the mounting groove limits the movement angle of the input rocker arm (1).

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