Automobile steering middle rocker arm assembly

Abstract

An automobile steering intermediate rocker arm assembly having a sealed structure, the assembly comprising a rocker arm axis pin (1), a rocker arm bracket (2), a rocker arm (5), a lining (4), and a nut (7); after the rocker arm axis pin (1) sequentially passes through the central through hole within the rocker arm bracket (2) and within the rocker arm(5), the end of the rocker arm axis pin (1) is fastened using the nut (7); the lining (4) is provided between the rocker arm axis pin (1) and the rocker arm (5); the assembly further comprises an end cap (8) and two seal rings; the two ends of the inner wall of the central through hole within the rocker arm (5) are respectively provided with grooves (51, 51'), each groove having one seal ring therein; the end cap (8) is threadably connected to the end of the rocker arm axis pin (1), and extends into the central through hole within the rocker arm (5); and the outer wall of the end cap (8) blocks one groove (51') on the inner wall of the central through hole. The automobile steering intermediate rocker arm assembly can prevent lubricating grease loss, oxidation, or mixing with impurities in the lining, thus extending service life.

Description

technical field [0001] The invention relates to a rocker arm structure, in particular to an automobile steering intermediate rocker arm assembly. Background technique [0002] The complex and changeable vehicle use environment puts forward higher and higher requirements for the reliability and durability of vehicles. For the steering transmission system of automobiles, especially heavy trucks, after years of development, the ball pin head of the steering tie rod has changed from the original grease-filled maintenance structure to the current maintenance-free structure, which reduces maintenance costs and ensures Vehicle attendance. However, the steering intermediate rocker arm used to connect the steering gear and the pull rod still adopts the maintenance method of regularly lubricating grease through the grease nipple. Specifically, the existing steering intermediate rocker arm assembly includes a rocker arm bracket, a rocker pin shaft and a rocker arm. The end of the roc...

AI Technical Summary

Problems solved by technology

However, in the intermediate rocker arm assembly of this structure, since there is no sealing mechanism between the bush and the rocker arm, after long-term operation, the total lubricating grease of the bush is easy to flow out from the gap between the rocker arm and the rocker pin. Regular maintenance is required, which is time-consuming and labor-intensive, and the maintenance cost is high

If the maintenance is not timely, due to the harsh working environment of heavy trucks, dust will enter after long-term use, increasing wear parts, resulting in shortened service life

[0003] In addition, the way of locking the end of the rocker pin shaft and the nut is to drill holes in the radial direction of the rocker pin shaft and the nut at the same time, and then fix them with bayonet pins, which is not only time-consuming and labor-intensive, but also prone to loosening

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