Disc type friction force adjusting device
By designing a disc friction adjustment device composed of multiple components, the problems of insufficient friction adjustment accuracy and complex operation in the prior art are solved, and the friction stepless adjustment and uniformity are achieved, and it is suitable for the control and flight control system of vehicle control systems, especially aircraft.
Patent Information
- Application Number
- CN202422496098.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-15
AI Technical Summary
The existing friction adjustment devices are difficult to achieve precise and easy-to-operate friction adjustment in vehicle control systems, especially in aircraft control systems and flight control systems, where friction adjustment accuracy is insufficient and operation is complicated.
A disc-type friction adjustment device consisting of a mounting support, friction base, friction ring, friction disk, seam bushing, gasket, spring, adjustment nut, opening pin and output rocker arm is adopted to achieve stepless adjustment of friction force through the adjustment of elastic components, and the gap of friction disk is automatically adjusted using the seam bushing to reduce processing difficulty, and the friction force is transmitted through the output rocker arm.
The fineness of friction adjustment has been significantly improved, the structure is simple and easy to process and manufacture, and can generate uniform friction forces of different sizes according to the needs, meeting the needs of the operating system.
Smart Images
Figure CN223132350U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the technical field of friction adjustment, and particularly relates to a disc-type friction adjustment device. Background Art
[0002] Friction adjustment devices are applied in vehicle control systems and control systems, especially in the control systems and flight control systems of aircraft (such as helicopters and fixed-wing aircraft), to provide a good operating feeling for drivers. Utility Model Content
[0003] Purpose of the Application: This application provides a disc-type friction adjustment device, which can easily obtain adjustable and uniform friction, and the method for setting the pre-tightening force of the friction device is simple and easy to operate, with high adjustment accuracy.
[0004] This application provides a disc-type friction adjustment device, which is composed of a mounting bracket 1, a friction base 2, a friction ring 3, a friction disc 4, a slotted bushing, a gasket 7, a bushing, a spring 9, an adjusting nut 11, a split pin 12, and an output rocker arm 13;
[0005] Among them, the mounting bracket 1 is used to mount the disc-type friction adjustment device to the airframe; the friction base assembly is composed of a friction base 2 and a friction ring 3; the friction disc assembly is composed of a friction disc 4, a slotted bushing, and an output rocker arm 13; the elastic assembly is composed of a bushing, a spring 9, and an adjusting nut 11.
[0006] Preferably, the friction ring 3 is mounted on the friction base 2 by gluing or riveting.
[0007] Preferably, the bottom of the friction base is disc-shaped, and the center is a stepped shaft. The top of the stepped shaft is threaded, and the stepped shaft is used to mount the friction disc assembly and the spring assembly.
[0008] Preferably, the friction disc 4 rotates on the central axis of the friction base 2, and a slotted bushing is arranged between the friction disc 4 and the friction base 2 to support the friction disc 4 to rotate on the central axis of the friction base 2.
[0009] Preferably, the slotted bushing can automatically adjust the clearance of the friction disc 4 on the central axis of the friction base 2, reducing the processing difficulty of the friction disc 4 on the friction base 2. The output rocker arm 13 and the friction disc 4 are mounted by riveting, and the output rocker arm 13 outputs the friction force generated by the friction base assembly and the friction disc assembly to other components of the control system.
[0010] Preferably, the bushing is mounted at both ends of the spring 9, and the adjusting nut is mounted outside the spring. The adjusting nut 11 can move on the thread at the top of the stepped shaft of the friction base 2 to steplessly adjust the compression length of the spring 9.
[0011] This application has the following technical effects:
[0012] A disc-type friction force adjusting device provided by the present application has a simple structure and is convenient for processing and manufacturing; different magnitudes of uniform friction forces can be generated according to requirements by means of this device for trimming the control force; this device can perform stepless adjustment of the friction force, significantly improving the fineness of friction force adjustment. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 Axonometric view of the disc-type friction force adjusting device;
[0014] Figure 2 Cross-sectional view of the disc-type friction force adjusting device. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0015] The present application provides a disc-type friction force adjusting device, which has a simple structure and is convenient for processing and manufacturing; the present application provides a disc-type friction force adjusting device that can perform stepless adjustment, significantly improving the fineness of friction force adjustment.
[0016] The friction force adjusting device described in the present application generally consists of an installation support, a friction base assembly, a friction disc assembly, an elastic assembly, etc. The installation support fixes the friction base assembly to the fuselage structure through connecting devices. The friction base assembly and the friction disc assembly always keep in contact with each other and generate friction force. Since the contact area between the friction base assembly and the friction disc assembly is large, the generated friction force is relatively uniform. The elastic assembly generates an elastic force and applies it to the friction disc assembly to ensure that the friction base assembly and the friction disc assembly always keep in contact with each other. The magnitude of the elastic force of the elastic assembly can be accurately adjusted through adjusting elements.
[0017] The installation support described in the present application is generally formed by sheet metal processing of metal plates, and its shape can be designed according to the specific installation position.
[0018] The friction base assembly described in the present application consists of a friction ring and a friction base. The friction ring is made of a non-metallic wear-resistant material and is installed on the friction base through connection methods such as bonding or riveting. The friction base is disc-shaped, and a stepped long shaft protrudes from the middle for installing the friction disc assembly and the elastic assembly.
[0019] The friction disc assembly described in the present application consists of parts such as a friction disc, a rocker arm, and a support element. The friction disc is a hollow stepped shaft and is installed on the friction base through a support element. The support element is used to support the rotational movement of the friction disc assembly. The support element can compensate for the movement clearance of the friction disc on the stepped long shaft of the friction base, reducing the processing difficulty of each component. The rocker arm is installed on the friction disc through a connecting device, and the rocker arm transmits the friction force generated by the friction base assembly and the friction disc to other components.
[0020] The elastic component described in this application is composed of components such as an elastic element and an adjusting element. The elastic element can be made of a metal material with a relatively small elastic modulus according to needs, or can be made of a non-metallic material with better elasticity, or other elastic parts such as a spring can act as it. The position where the elastic element is located should be determined according to actual needs without special restrictions. The adjusting element is used to adjust the elastic force generated by the elastic element, and this elastic force acts on the friction disc to generate a positive pressure on the friction base assembly, thereby changing the magnitude of the frictional force.
[0021] Please refer to Figure 1 and Figure 2 , Figure 1 which is an axonometric view of the disc-type frictional force adjusting device. As Figure 2 shown, the disc-type frictional force adjusting device is composed of components such as a mounting support 1, a friction base 2, a friction ring 3, a friction disc 4, slotted bushings 5, 6, a gasket 7, bushings 8, 10, a spring 9, an adjusting nut 11, a split pin 12, an output rocker arm 13, etc.
[0022] The mounting support 1 is used to mount the disc-type frictional force adjusting device to the machine body.
[0023] The friction base assembly is composed of a friction base 2 and a friction ring 3. The friction ring 3 is installed on the friction base 2 by means of bonding or riveting or other connection methods. The bottom of the friction base is disc-shaped, and the center is a stepped shaft, and the top of the stepped shaft is threaded. The stepped shaft is used to install the friction disc assembly and the spring assembly.
[0024] The friction disc assembly is composed of a friction disc 4, slotted bushings 5, 6 and an output rocker arm 13. The friction disc 4 rotates on the central axis of the friction base 2. Slotted bushings are arranged between the friction disc 4 and the friction base 2 to support the friction disc 4 to rotate on the central axis of the friction base 2. The slotted bushings can automatically adjust the clearance of the friction disc 4 on the central axis of the friction base 2, reducing the processing difficulty of the friction disc 4 on the friction base 2. The output rocker arm 13 and the friction disc 4 are installed by riveting. The output rocker arm 13 outputs the frictional force generated by the friction base assembly and the friction disc assembly to other components of the operating system.
[0025] The elastic component is composed of bushings 8, 10, a spring 9, and an adjusting nut 11. The bushings 8, 10 are installed at both ends of the spring 9, and the adjusting nut is installed outside the spring. The adjusting nut 11 can move on the thread at the top of the stepped shaft of the friction base 2 to steplessly adjust the compression length of the spring 9.
Claims
1. A disc friction adjustment device, characterized in that, The device consists of a mounting support (1), a friction base (2), a friction ring (3), a friction disc (4), a slotted bushing, a gasket (7), a bushing, a spring (9), an adjusting nut (11), a split pin (12), and an output rocker arm (13). Among them, the mounting support (1) is used to install the disc friction force adjusting device onto the machine body; the friction base assembly consists of the friction base (2) and the friction ring (3); the friction disc assembly consists of the friction disc (4), the slotted bushing, and the output rocker arm (13); the elastic assembly consists of the bushing, the spring (9), and the adjusting nut (11).
2. The device according to claim 1, wherein The friction ring (3) is installed onto the friction base (2) by bonding or riveting.
3. The device according to claim 2, wherein The bottom of the friction base is disc-shaped, with a stepped shaft at the center. The top of the stepped shaft is threaded, and the stepped shaft is used to install the friction disc assembly and the spring assembly.
4. The device according to claim 3, characterized in that, The friction disc (4) rotates on the central axis of the friction base (2). A slotted bushing is arranged between the friction disc (4) and the friction base (2) to support the friction disc (4) to perform rotational motion on the central axis of the friction base (2).
5. The device according to claim 4, characterized in that The slotted bushing can automatically adjust the clearance of the friction disc (4) on the central axis of the friction base (2), reducing the processing difficulty of the friction disc (4) on the friction base (2). The output rocker arm (13) and the friction disc (4) are installed by riveting, and the output rocker arm (13) outputs the friction force generated by the friction base assembly and the friction disc assembly to other components of the control system.
6. The device according to claim 5, characterized in that The bushing is installed at both ends of the spring (9), and the adjusting nut is installed outside the spring. The adjusting nut (11) can move on the threaded part at the top of the stepped shaft of the friction base (2) to steplessly adjust the compression length of the spring (9).