Wear checking device for brake pad of oil-cooling multi-piece brake

Abstract

The invention discloses a wear checking device for a brake pad of an oil-cooling multi-piece brake. The device comprises a checking rod, a fixing base, a sleeve, a spring and a protective cap; the checking rod is arranged in a checking rod through hole of the fixing base in a sleeve mode, the sleeve is connected to the fixing base, the sleeve sleeves the checking rod and the checking rod is located in the sleeve, and the protective cap is connected to the sleeve; and an outer end surface of the checking rod extends out of an opening of the sleeve and is located in a counter bore of the protective cap. The device is simple and compact in structure and does not need to be repeatedly disassembled and assembled after being installed, has an automatic reset and indication function, so that thechecking process is simple and visual.

Description

technical field [0001] The invention relates to a mining dump truck, in particular to an oil-cooled multi-plate brake pad wear inspection device. Background technique [0002] Oil-cooled multi-disc brakes are usually used in engineering machinery that requires a large braking torque, which usually includes a hub or a drive wheel connected to the hub and a friction plate mounted on the drive wheel, and the spacer and damping plate are connected to each other through splines. The external fixed ring gear is connected, and the oil-cooled multi-plate brake is filled with forced circulation cooling oil. When braking occurs, the brake fluid pushes the brake piston to move in the axial direction, and presses the friction plate, spacer plate and damping plate tightly. Generate braking force. Among them, the friction plate, spacer and damping plate are collectively referred to as brake pads. [0003] When the brake brakes, the rotating friction plate driven by the wheel hub or the ...

AI Technical Summary

Problems solved by technology

Usually, after the vehicle stops running completely, use a depth gauge or a vernier caliper to measure at the reserved measuring hole. When measuring, you need to remove the plug installed on the measuring hole. Since the inside of the brake is full of circulating cooling oil, during the inspection process, even if If the cooling oil circulation system is closed, a large amount of cooling oil will flow out from the measuring hole, resulting in a waste of cooling oil. If the cooling oil flows to the ground, it will pollute the environment

Moreover, the data obtained by the operator through the measurement of the depth gauge or vernier caliper needs to be compared with the data in the operation manual to determine whether the brake pad is invalid. Since the installation position of the brake is usually relatively compact, it can be operated without dismantling the rim. The available space for personnel is small, making measurement difficult and time-consuming, and disassembling the rim will cause additional workload and waste of time

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