Mine wheel edge reducer and installation method of eccentric shaft assembly thereof

Abstract

The invention discloses a mine wheel edge reducer, which includes a planetary frame. A first round hole is formed in the outer side of the large end of the planetary frame, and the axis of the first round hole is a first axis; a second round hole is formed in the inner side of the large end of the planetary frame; the small end of the planetary frame is provided with a third round hole, and the second round hole and the third round hole are located on a second axis; an eccentric shaft is a stepped shaft, and the axis of a small end shaft and a big end shaft is a third axis; a bolt through holeis formed in the axial direction of the eccentric shaft, and the axis of the bolt through hole is a fourth axis; the eccentric shaft is arranged on the second round hole and the third round hole in apenetrating mode; a shaft hole of the planetary wheel is provided with a first tapered roller bearing and a second tapered roller bearing, and the first tapered roller bearing and the second taperedroller bearing are installed on the eccentric shaft; and a locking bolt is arranged on the first round hole and the bolt through hole in a penetrating mode, and the eccentric shaft is fixed to the planetary frame. The invention further discloses an installation method for an eccentric shaft assembly of the mine wheel edge reducer. The mine wheel edge reducer has the advantages of simple structure,high reliability and convenient maintenance.

Description

technical field [0001] The invention relates to a mining machinery technology, in particular to a mine-used wheel-side reducer and an installation method for an eccentric shaft assembly thereof. Background technique [0002] The role of the wheel reducer is to transmit the power of the driving half shaft to the hub after decelerating and increasing the torque, which requires the joint action of the sun gear, planetary gear and planet carrier to complete. The existing technical solution is usually to install the planetary gear on the planetary carrier through a straight shaft. [0003] The Chinese invention patent with the notification number CN 105299196A discloses a "wheel side reducer for mining vehicles", which includes a planet carrier, a half shaft is arranged at the center of the planet carrier, and a sun gear is arranged on the half shaft. Three pin shafts fixed to the planet carrier are arranged on the peripheral side of the sun gear, and the pin shafts are connecte...

AI Technical Summary

Problems solved by technology

[0004] The planetary gear is installed on the planetary carrier through a straight shaft. This installation method has the following disadvantages: First, the circumferential and axial limit structures of the shaft are relatively complicated, and a separate pressure plate is required to limit the position. ; The second is that the bearing capacity of cylindrical roller bearings is poor, which is not suitable for the harsh environment of mines; the third is that the axial clearance of cylindrical roller bearings is not easy to adjust, and it can only be adjusted after the entire wheel reducer is removed from the rear axle. adjust

The disadvantage is that the structure is complex, the bearing capacity is poor, and the maintenance and adjustment are inconvenient

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