A pedal operation method with positioning self-locking and easy unlocking

Abstract

The invention discloses a pedal operation method with positioning self-locking and easy unlocking. The operation method includes using a pedal mechanism with positioning self-locking and easy unlocking. The pedal mechanism includes a hydraulic valve, a mounting seat, a ratchet seat, a card Claw device, spring A, spring B, spring positioning sleeve, brake pedal and release pedal; the operation method of the pedal machine includes the following steps, and the following steps A to D can be optionally performed, and these steps do not need to be performed in chronological order : Step A, short-term braking; Step B, releasing short-term braking; Step C, fully braking, that is, the pedal is self-locking; step D, releasing self-locking, that is, unlocking. The method of the invention realizes the control of multiple functions of the pedal by rationally controlling the pedal mechanism with positioning and self-locking functions, adopts single-foot control, does not need coordination and cooperation of both feet, and has a simpler operation method and is less prone to misoperation.

Description

Technical field [0001] The present invention relates to the technical field of pedal mechanisms, and in particular, to a pedal operation method with a self-locking and unlocked. Background technique [0002] At present, the method of manipulating the rolling brake on the construction machine mainly has the following defects: 1. Controlling the turn-off braking, fast brakes by electrical switching, but the hydraulic system and mechanical structure of the machine is large; , Through the discharging of the solenoid valve by the electrical switch, the braking function is lost after power off, and the electrical system is more likely to fail, the reliability and operation safety of the equipment are lower; three, ordinary machinery The pedal mechanism does not locate self-locking and unlocking functions, and the machine operator needs to always step on the foot pedal when the brake is turned on. The operator's job intensity is high, which is not conducive to ensuring the safety of wor...

AI Technical Summary

Problems solved by technology

[0002] At present, the method of controlling the winch braking on construction machinery mainly has the following defects: 1. The electric switch controls the on-off of the solenoid valve to perform winch braking and brake quickly, but it has a large impact on the hydraulic system and mechanical structure of the machine; 2. 1. Control the on-off of the solenoid valve through the electrical switch to perform winch braking. After the power is cut off, the braking function will be lost. Compared with mechanical control, the electrical system is more prone to failure, and the equipment reliability and operation safety are lower; 3. Ordinary machinery The pedal mechanism does not have positioning self-locking and unlocking functions. The operator of the machine needs to step on the pedals all the time when hoisting and braking. The operator's work intensity is high, which is prone to driving fatigue, which is not conducive to ensuring operation safety.

The mechanism of the self-locking pedal valve is too complicated, and it is difficult to install and connect small parts in a small space. The more connection points, the higher the failure rate, especially the connection between the wire rope and the spring.

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