A brake with a speed-limiting function

A technology of brakes and drum brakes, applied in the direction of automatic brakes, brake types, drum brakes, etc., can solve problems such as speed limiters and other devices that are prone to failure, overspeeding of monorail conveyors, and derailment of conveyors. Operating life, derailment avoidance effect

CN108869580BActive Publication Date: 2019-12-03EAST CHINA JIAOTONG UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Publication Date
2019-12-03

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Abstract

The invention discloses a brake with a speed limiting function, which includes a drum brake and a brake driving mechanism; The drive block and the elastic element arranged between the brake drive block and the brake drum; when the speed of the brake drum is lower than the set value, the elastic force of the elastic element always promotes the outer end of the brake drive block to be positioned at the brake On the inner side of the boundary circle, when the rotational speed of the brake drum is higher than the set value, the brake drive block moves outward in the radial direction against the elastic force of the elastic element under the action of centrifugal force, and the outer end of the brake drive block protrudes Brake the boundary circle and touch the drive frame. The invention can automatically brake and reduce the speed when the monorail conveyor is running at overspeed, so as to ensure the safe operation of the monorail conveyor; when the running speed of the monorail conveyor is too fast, the braking drive is realized by increasing the centrifugal force on the braking drive block, Clever design.
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Description

technical field

[0001] The invention relates to a monorail conveyor, in particular to a brake with a speed limiting function. Background technique

[0002] The terrain conditions of mountain orchards are mostly mountains or hills, so the mechanized production level of mountain orchards is not high. In order to reduce labor intensity, production cost and improve orchard production efficiency, the use of unmanned monorail transport equipment for agricultural materials or fruit transportation has become the main trend of the development of the fruit industry in mountainous areas. The unmanned monorail transporter is a modern machine that can not only overcome the geographical environment of steep mountains and slopes, but also complete the transportation by itself in dense fruit tree orchards.

[0003] Unmanned monorail conveyors are generally equipped with devices such as speed limiters, overrunning clutches and parking brakes, which can limit the running speed of the conveyo...

Examples

Embodiment Construction

[0030] The present invention will be further described below in conjunction with the examples and drawings, but the embodiments of the present invention are not limited thereto.

[0031] see Figure 1-Figure 7 , the rotor with speed limiting function in this embodiment includes a drum brake 21 and a brake drive mechanism; wherein, the drum brake 21 includes a brake drum 10 and a brake mechanism, and the brake drum 10 is driven by a transmission The shaft is connected with the running shaft of the monorail conveyor, and the brake mechanism includes two brake shoes 13, a brake cam 9 and a return spring 22, wherein the two brake shoes 13 are arranged on the inner side of the brake drum 10, One end of the two brake shoes 13 is connected to each other in rotation, and the other end is tightly held on the brake cam 9 under the elastic force of the return spring 22. drive frame;

[0032] The brake driving mechanism includes a brake driving block arranged on the brake drum 10 and mo...