Steering mechanism with two sets of tapered roller bearings

Abstract

The invention provides a steering mechanism with two sets of tapered roller bearings. The steering mechanism comprises a steering axle, mounting ring seats, a main pin and a steering knuckle, whereinthe mounting ring seats are arranged at the two ends of the steering axle in the axial direction, the main pin is arranged in the mounting ring seats, the steering knuckle is arranged on the outer circle surface of the main pin and provided with a hollow mounting rod, the two ends of the main pin are arranged on the mounting ring seats through slot pins and slotted nuts, the steering knuckle is arranged on the outer circle surface of the main pin through the hollow mounting rod, moreover, stepped holes are formed in the inner cavities of the two ends of the hollow mounting rod correspondingly,and the first tapered roller bearings used for being in contact with the outer circle surface of the main pin are arranged in the stepped holes. The tapered roller bearings are used for replacing needle bearings and GGB self-lubricating winding bearings, so that the protection on the main pin and the steering mechanism is improved, and the service lives of the main pin and the steering mechanismare prolonged.

Description

technical field [0001] The invention relates to the technical field of steering axles, in particular to a steering mechanism with double sets of tapered roller bearings. Background technique [0002] Forklifts are material handling vehicles widely used in stations, ports, airports, factories, warehouses and other places. They are efficient equipment for mechanized loading and unloading, stacking and short-distance transportation. Traditional forklifts use needle bearings and thrust balls at the kingpin seat of the steering bridge The structure of the bearing allows the steering knuckle to rotate smoothly. When the load is impacted, the needle roller bearing and the thrust ball bearing are easily damaged, causing the steering axle to fail and seriously affecting the steering quality of the forklift; [0003] I learned that there are many quality problems such as wear of needle roller bearings and thrust ball bearings in forklifts in the market. Needle roller bearings can only...

AI Technical Summary

Problems solved by technology

[0002] Forklifts are material handling vehicles widely used in stations, ports, airports, factories, warehouses and other places. They are efficient equipment for mechanized loading and unloading, stacking and short-distance transportation. Traditional forklifts use needle bearings and thrust balls at the kingpin seat of the steering bridge The structure of the bearing allows the steering knuckle to rotate smoothly. When the load is impacted, the needle roller bearing and the thrust ball bearing are easily damaged, causing the steering axle to fail and seriously affecting the steering quality of the forklift;

[0003] I learned that there are many quality problems such as wear of needle roller bearings and thrust ball bearings in forklifts in the market. Needle roller bearings can only bear radial force and cannot bear axial force. The force will cause the needle of the needle roller bearing to fall, accelerate the wear of the kingpin, and easily cause safety accidents such as breakage. At the same time, if the thrust ball bearing receives an impact load, if the lubrication is insufficient, the balls inside will be easily broken, resulting in failure to turn. quality problems;

[0004] At the same time, there is currently a steering bridge on the market that replaces the needle roller bearing at the kingpin seat with a GGB self-lubricating winding bearing, which avoids the frequent drop of the needle. However, the GGB self-lubricating winding bearing cannot withstand high temperature environments, and winding Bearings are easy to soften, causing quality problems

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