Stirring transfer car and stirring drum control device

Abstract

The invention discloses an agitator transporting truck and an agitating drum control device thereof. The agitating drum control device comprises an operation controller, an electronic controller, an oil pump actuator, an accelerograph actuator, and a rotation speed sensor, wherein the electronic controller is electrically connected with the operation controller to control the operation of an agitating drum of the agitator transporting truck according to an operation command of the operation controller; moreover, the electronic controller also controls the agitating drum to rotate at a constant speed during the running of the agitator transporting truck; the oil pump actuator is electrically connected with the electronic controller to control the working position of the agitating drum according to an operation command of the electronic controller; the accelerograph actuator is electrically connected with the electronic controller to control the rotation speed of an engine of the agitator transporting truck according to an operation command of the electronic controller; and the rotation speed sensor is electrically connected with the electronic controller to detect the rotation speed of the agitating drum and feed back a rotation speed pulse signal of the agitating drum to the electronic controller. The agitating drum control device has two operation modes, namely, remote control and close control, and has constant speed control, convenient installation, simple operation and lower cost.

Description

technical field [0001] The invention belongs to a stirring transport machine, in particular to a stirring transport vehicle which adopts a mechanical oil pump to control a stirring drum and an electronic control device thereof. Background technique [0002] At present, in the commonly used mixer trucks on the market, the device for controlling the rotating speed of the mixing drum generally adopts an electronically controlled oil pump type and a mechanical oil pump type. The former has higher equipment cost, while the latter has a lower cost of mechanical oil pump, but there is no better electronic control product in terms of automatic control. [0003] For the mechanical oil pump control device, the mixer control system currently uses a mechanical linkage structure, such as figure 1 As shown, it is mainly composed of oil pump variable rod 11, cab control flexible shaft 12, throttle control rod 13, oil pump control push-pull rod 14, control handle 15, indoor control 16, pos...

AI Technical Summary

Problems solved by technology

[0008] When driving, the speed of the oil pump n 1 That is, the rotational speed of the engine changes at any time, and the displacement q of the quantitative motor 2 is a certain value, since the operating handle is placed in the agitation gear, the swing angle of the oil pump variable rod is fixed, so the displacement q of the oil pump 1 is also a certain value, then when the engine speed changes, the speed n of the oil pump 1 It also changes accordingly, and the speed n of the hydraulic motor can be known from the formula 2 will change with the motor speed n 2 The speed ratio between the rotating speed of the mixing drum and the rotating speed of the mixing drum is i=6.94, the rotating speed of the mixing drum will also change with the change of the engine speed, and the constant rotating speed function of the mixing drum cannot be realized

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