Torque-limiting type low-speed brake

Abstract

The invention discloses a torque-limiting type low-speed brake, which comprises a drive hub, a pressing plate, a right support disc, a movable friction sheet group, a static friction sheet group, a driven hub, a disc spring, a disc spring pressing block, an adjusting screw rod, pin rollers, pin roller sleeves, a left support disc, a support board and an oil seal disc. The drive hub is connected with the pressing plate through a bolt, the movable friction sheet group is embedded into an external gear of the drive hub through an internal gear, the static friction sheet group is embedded into an internal gear of the driven hub through an external gear, the driven hub is connected with the right support disc through a bolt, the driven hub is connected with the left support disc through a bolt, the right support disc is provided with a thread hole, the adjusting screw rod is connected with the right support disc through a thread, the adjusting screw rod is arranged on the right side of the disc spring pressing block, the disc spring pressing block is arranged on the right side of the disc spring, the disc spring is arranged on the right side of the static friction sheet group, the pin rollers are arranged between the driven hub and an external wheel, the shafts of the pin rollers are arranged in the pin roller sleeves, the pin roller sleeves are connected through a bolt, the support board is connected with the external wheel through a bolt, and the support board is connected with the oil seal disc through a bolt. The torque-limiting type low-speed brake has the advantages of reasonable and compact structure, convenience for operation, safety and reliability, and capability of enabling the brake torque of each set of driving device to be limited in a particular range, thereby achieving the aim of uniform loading working, and increasing an operation safety coefficient of a belt conveyer.

Description

technical field [0001] The invention relates to a torque-limiting low-speed backstop. Background technique [0002] At present, the backstops used in belt conveyors in my country mainly include non-contact backstops and contact backstops. If the above two backstops are applied to multi-drive belt conveyors, they are usually A backstop must be installed on each set of driving devices. For this reason, the parts and components on each driving device are required to be basically balanced when the whole machine is reversed, that is, the backstop on each set of backstops must be balanced. The torque should be basically equal, but there are many problems in actual work: [0003] 1. When the belt conveyor is heavy-loaded and parked or braked in an emergency, most of the backstop torque borne by the backstop cannot be balanced, and even most of the load will be concentrated on one of the backstops. On the contrary, the load on the backstop of the driving device and related parts and...

AI Technical Summary

Problems solved by technology

[0004] 2. In the design of the main engine of the belt conveyor, when the backstop is selected, the backstop torque coefficient on the driving device is generally increased and a high-standard backstop is selected so that it can withstand the load of the entire belt conveyor alone. The required backstop torque will not only increase the equipment cost of the whole machine, but also may cause overloading of other parts and components, thereby reducing the backstop reliability of the whole machine

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