Main driving device for vertical milling machine

Abstract

The invention discloses a main driving device for a vertical milling machine, which has wide speed regulation range and can achieve axial feeding and good lubrication effect, wherein the main driving device comprises a main motor, a drive housing, an elastic coupler, an oil basin, a first transmission shaft, a cycloid pump, a second transmission shaft, a second shaft gear, a triple gear, a third transmission shaft, a change gear, a fourth transmission shaft, a duplicate gear, a change gear, a fifth transmission shaft, a change gear, a bevel gear and a vertical shaft; a first shaft gear is arranged on the first transmission shaft; the bevel gear is arranged at one end of the vertical shaft; a skew gear is arranged at the other end of the vertical shaft; a main shaft is arranged on one side of the vertical shaft; and a spline housing and the skew gear are arranged on the outer side of the main shaft. The main driving device has the advantages as follows: the main shaft can obtain 12-level rotational speed within 35 to 1500 rpm (Revolutions Per Minute) through a 3*2*2 structural formula, and the speed regulation range is wide; the main shaft and the spline housing are connected through a spline, and the main shaft can move upwards and downwards in the spline housing in the axial direction; in addition, the cycloid pump is installed at one end of the first transmission shaft, lubricant in the oil basin in the drive housing can be conveyed to lubricating points on the gears and bearings through an oil line with the help of the power of the first transmission shaft, and the lubrication effect is good.

Description

technical field [0001] The invention relates to a milling machine main transmission system, in particular to a vertical milling machine transmission device. Background technique [0002] In the existing vertical milling machine, the main drive is changed through the gear, so that the main shaft can obtain 12 different speeds of 45-1300 r / min, the speed regulation range is narrow, the machined parts are of a single model, the main shaft is fixed, and only the control work is required. The table moves up, down, left, and right to process objects. The axial direction of the spindle cannot achieve axial feed, and the processing range of the milling machine is small. And the lubrication in the main transmission box is only through the splash lubrication of the oil throwing pan, the gears and bearings are not sufficiently lubricated, the gears wear quickly, the bearings are easy to burn rings, and the lubrication effect is poor. Contents of the invention [0003] The purpose of...

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Problems solved by technology

[0002] In the existing vertical milling machine, the main drive is changed through the gear, so that the main shaft can obtain 12 different speeds of 45-1300 r / min, the speed regulation range is narrow, the machined parts are of a single model, the main shaft is fixed, and only the control work is required. The table moves up, down, left, and right to process the object. The axis of the spindle cannot achieve axial feed, and the processing range of the milling machine is small.

In addition, the lubrication in the main transmission box is only through the splash lubrication of the oil throwing pan, the gears and bearings are not sufficiently lubricated, the gears wear quickly, the bearings are easy to burn rings, and the lubrication effect is poor

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