Machining method for impeller of hydraulic retarder of heavy truck

Abstract

The invention relates to a machining method for an impeller of a hydraulic retarder of a heavy truck. The machining method includes the steps that an impeller workpiece to be machined is assembled in a special machining mechanism, and then a spiral broach is assembled; after the workpiece and the spiral broach are assembled, machining is started, a driving motor pulls a pull rod and drives the spiral broach to do linear motion towards the side far away from the workpiece, and when the spiral broach moves, a rotating assembly starts to work and drives a rotating disc to rotate so as to drive the workpiece to rotate in the clockwise direction; and after the machining, the workpiece is taken down from the machining mechanism, and the machining of spiral teeth of the impeller is completed. The machining method for the impeller of the hydraulic retarder of the heavy truck has the advantages that the special machining mechanism is coordinated, the parameters such as the column number, the size and the tooth number of machining teeth of the spiral broach, the speed of the spiral broach in the machining process and the rotating speed of the workpiece are reasonably and cooperatively designed, and therefore the spiral teeth of the impeller can be machined at a time, the machining precision of the spiral teeth can be guaranteed, and product scrapping or secondary machining caused by deviation can be avoided.

Description

technical field [0001] The invention relates to the field of auto parts processing, in particular to a processing method for an impeller of a hydraulic retarder of a truck. Background technique [0002] The hydraulic retarder is also called the hydraulic retarding device. Cars use pneumatic or hydraulic brakes when going down long and steep slopes. Although they can receive good braking effects, for heavy vehicles with a large load of more than nine meters, the effect of using pneumatic or hydraulic brakes is limited, and The brake assembly is very prone to lock failure. Therefore, the state stipulates that a passenger car over nine meters and a truck over twelve meters must be equipped with a retarder device. The stator of the hydraulic retarder is also the retarder housing, which is connected with the rear end of the transmission or the vehicle frame, and the rotor is connected with the transmission shaft through a hollow shaft, and blades are cast on the rotor and the s...

AI Technical Summary

Problems solved by technology

[0003] At present, during the processing of the impeller of the hydraulic retarder on the truck, for the helical tooth 2 in the center of the impeller 1, such as figure 1 As shown, in the process of processing, the existing processing method, due to the influence of processing equipment and parameters in the processing process, may easily lead to deviations in the processed helical teeth 2, resulting in scrapped products or the need for secondary processing. very troublesome

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