Interlocking gearbox gear shifting mechanism suitable for being used on vehicle-mounted petroleum drilling machine

Abstract

An interlocking gearbox gear shifting mechanism suitable for being used on a vehicle-mounted petroleum drilling machine comprises an interlocking lever horizontally arranged between a left shifting fork handle and a right shifting fork handle through a guide sleeve arranged on a gearbox body, and a handle is arranged in the middle of the interlocking lever. Locking holes matched with the corresponding ends of the interlocking lever are processed in the handle levers of the left shifting fork handle and the right shifting fork handle respectively, locating pieces with cross sections of U-shaped structures penetrate through the handle levers of the left shifting fork handle and the right shifting fork handle respectively in a movable fit mode, and the locating pieces are matched with the shifting fork handles through strip-shaped slotted holes. High gear locking holes, neutral gear locking holes and low gear locking holes are longitudinally and symmetrically processed in the two side walls of each locating piece respectively, and the high gear locking holes, the neutral gear locking holes and the low gear locking holes are matched with the end portion of the interlocking lever in sequence. The interlocking lever is composed of a lever body arranged in the middle of the interlocking lever and spring bolt levers, the two ends of the lever body respectively extend outwards to form the spring bolt levers, the diameter of the spring bolt levers is smaller than that of the lever body, and the extending quantity length of the spring bolt levers of the interlocking lever is larger than or equal to the width of the locating pieces.

Description

technical field [0001] The invention relates to gear shifting equipment for a gearbox of a vehicle-mounted oil drilling rig, in particular to a gear shifting device for a gearbox. Background technique [0002] The transmission gearbox is the core component of the power transmission system of the vehicle-mounted drilling rig, and the link of power transmission of each working machine, which is related to the overall layout of the drilling rig and the important working performance of the drilling rig. A transmission box with good performance should have high transmission power and high efficiency. It has the characteristics of sensitive operation, compact structure and convenient operation and maintenance. It satisfies the mobile and technical requirements of the vehicle-mounted drilling rig to the greatest extent, and meets the torque and drilling speed range of each working machine according to the demand. [0003] The gearbox of a vehicle-mounted oil drilling rig with a l...

AI Technical Summary

Problems solved by technology

Circuit shifting devices are prone to short circuit and aging problems under harsh working conditions, while automotive gearboxes are difficult to process, high in maintenance costs, difficult to disassemble and maintain, and have relatively high environmental requirements, so they are not suitable for harsh environments. Under working conditions

In addition, the automotive industry and general industrial transmission shifting devices do not have interlocking

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