Unlock instant, AI-driven research and patent intelligence for your innovation.

Protection device based on mechanical centrifugal switch and relay and control method

A relay control, centrifugal switch technology, applied in emergency protection circuit devices, electrical components and other directions, can solve the problems of easy to appear flying phenomenon, hidden dangers, gear reduction box does not have self-locking function, etc., to achieve simple structure and improve safety. , the effect of low cost

Active Publication Date: 2022-01-04
SOUTH CHINA AGRI UNIV
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the traditional gear reducer design does not have a self-locking function, which makes the monorail conveyor with a gear transmission device prone to speeding when going up and down with a full load, and there are certain safety hazards

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Protection device based on mechanical centrifugal switch and relay and control method
  • Protection device based on mechanical centrifugal switch and relay and control method
  • Protection device based on mechanical centrifugal switch and relay and control method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] A protection device based on a mechanical centrifugal switch and a relay provided by the embodiment of the present invention is applied to the existing self-propelled electric monorail transport equipment in mountain orchards, and there is no need to improve the existing transport equipment, only the present invention The protective device can be installed on the transport equipment.

[0045] refer to figure 1 As stated, the protection device includes: a speed limiter, a centrifugal switch, a relay control circuit and an electrified brake, all of which are installed on the mechanical body of the monorail transport equipment; the mechanical body has a power system and a motor; the power system is used for It supplies power for motors, motor drivers, and energized brakes; the power supply system includes, for example, a battery with a rated voltage of 48V, a DC conversion module with a rated output voltage of 24V, and a control power supply with adjustable output voltage....

Embodiment 2

[0068] The embodiment of the present invention also provides a control method based on a mechanical centrifugal switch and a relay, using the protection device as in the above-mentioned embodiment 1; the control method includes:

[0069] (1) Obtain the motor output shaft speed in real time;

[0070] (2) When the output shaft of the motor is greater than or equal to the preset threshold, the speed limiter is thrown off to start the first-level mechanical friction speed limit;

[0071] (3) When the rotation speed of the output shaft of the motor lasts for a preset time and is greater than or equal to the preset threshold, the centrifugal switch will be turned off and connected to the relay control circuit, and the energized brake will be activated to perform secondary braking to limit the speed.

[0072] In one embodiment, the method also includes:

[0073] (4) The motor driver connects the corresponding speed limit selection interface according to the feedback information of t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a protection device based on a mechanical centrifugal switch and a relay and a control method. The protection device comprises a speed limiter, a centrifugal switch, a relay control circuit and a power-on brake which are all installed on a mechanical body of monorail conveying equipment; the mechanical body is provided with a power system and a motor; the speed limiter is fixedly connected with an output shaft of the motor; and when the rotating speed of the output shaft is larger than or equal to a preset threshold value, the speed limiter is thrown away to start first-stage mechanical friction speed limiting; the motor is connected with the centrifugal switch, the relay control circuit and the power-on brake in sequence; and when the rotating speed of the output shaft of the motor continues for a preset duration and is larger than or equal to a preset threshold value, the centrifugal switch is thrown off to switch on the relay control circuit, and the power-on brake is started to conduct second-stage braking speed limiting. With the protection device adopted, the galloping problem of self-propelled electric monorail conveying equipment in a hillside orchard can be solved, and the existing conveying equipment does not need to be improved. The protection device is simple in structure and low in cost.

Description

technical field [0001] The invention relates to the field of control circuits, in particular to a protection device and a control method based on mechanical centrifugal switches and relays. Background technique [0002] As we all know, at present, most of the transportation of agricultural materials and spraying plant protection in mountain orchards rely on manual operations, which has low production efficiency, high labor intensity, and difficult production safety. The unmanned transportation equipment represented by rail transport aircraft can adapt to complex terrain environments, has the characteristics of simple structure, strong climbing ability, safety and ease of use, and is suitable for production operations in hilly and mountainous orchards. [0003] However, the traditional gear reduction box design does not have a self-locking function, which makes the monorail conveyor with a gear transmission device prone to speeding when going up and down with a full load, pos...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): H02H7/09
CPCH02H7/093
Inventor 李震易远飞吕石磊洪添胜薛秀云陈姗温威杨洲周岳淮
Owner SOUTH CHINA AGRI UNIV