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Rotating speed adaptive frequency conversion control system and method for concrete mixer

A concrete mixer and frequency conversion control technology, which is applied in the direction of control devices, etc., can solve the problems of artificial cleaning of the mixer, inability to adapt to different raw material formulations, and poor mixing quality, etc., to improve mixing efficiency, reduce average power, and save energy. The effect of energy consumption

Inactive Publication Date: 2014-05-14
SANYI ROBOT TECH CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] In view of this, the present invention proposes a rotational speed self-adaptive frequency conversion control system and method for concrete mixers to solve the problem that the above-mentioned ordinary concrete mixers do not include an automatic cleaning control system for the whole machine, cannot adapt to different raw material formulas, and the mixing quality cannot reach the optimum level. Good, artificial cleaning of the mixer is prone to dangerous problems

Method used

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  • Rotating speed adaptive frequency conversion control system and method for concrete mixer
  • Rotating speed adaptive frequency conversion control system and method for concrete mixer
  • Rotating speed adaptive frequency conversion control system and method for concrete mixer

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Embodiment 1

[0025] Please according to image 3 As shown, a rotational speed self-adaptive frequency conversion control system for a concrete mixer of the present invention includes a controller, a frequency converter, two motors and two reducers, wherein each of the two reducers is connected to a main shaft of the mixer, and the two motors are connected to Two reducers, the frequency converter is connected to the two motors through electrical connection, the controller is connected to the frequency converter, the controller has a parameter automatic optimization module, and the system also has a module that can adaptively control the stirring speed according to the load.

[0026] On the basis of the above, the present invention also has the following implementation modes, please continue to refer to image 3 as shown,

[0027] In a further embodiment of the present invention, the system uses vector control to perform frequency conversion control on the motor.

[0028] In a further embo...

Embodiment 2

[0041] like Figure 4 As shown, in this embodiment, the only difference from Embodiment 1 is that one frequency converter in Embodiment 1 controls two motors, and two separate frequency converters respectively control one motor, and other structures are the same as in Embodiment 1 The same, the specific working principle is the same as that of the first embodiment, and the achievable effect is also the same as that of the first embodiment, which will not be repeated here.

[0042] In summary, through the use of the present invention, the installed power of the motor can be reduced, the cost can be reduced, and energy consumption can be saved; the stirring speed and power can be adaptively controlled according to the load, the average power can be reduced, and energy consumption can be saved; automatic optimization according to different materials Control the parameters to ensure the mixing quality while improving the mixing efficiency; when the mixer is not mixing concrete, it...

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Abstract

The invention discloses a rotating speed adaptive frequency conversion control system and a rotating speed adaptive frequency conversion control method for a concrete mixer. The system comprises a controller, a frequency converter, two motors and two speed reducers; each of the two speed reducers is connected with a main shaft of the mixer; both the two motors are connected with the two speed reducers; the frequency converter is electrically connected with the two motors; the controller provided with a parameter automatic optimizing module is connected with the frequency converter. The system further comprises a module which can adaptively control the rotating speed in mixing according to the load so as to increase the rotating speed to clean a mixing shaft and blades when concrete is not mixed. With the adoption of the rotating speed adaptive frequency conversion control system and method for the concrete mixer, the installed power of the motors can be reduced, the cost can be decreased, and the energy consumption can be saved; the mixing speed and power of mixing can be adaptively controlled according to the load, thus the average power can be reduced, and the energy consumption can be saved; the parameters are automatically and optimally controlled according to different materials, so as to ensure the mixing quality while improving the mixing efficiency; when concrete is not mixed, the mixer can be cleaned by running at high speed.

Description

technical field [0001] The invention relates to the technical field of mixer control, in particular to a rotational speed self-adaptive frequency conversion control system and method for a concrete mixer. Background technique [0002] Traditional concrete mixers use uniform speed for material mixing, and the power of unloading is more than twice the average mixing power, so two motors are needed to meet the power requirements. One mixing speed often cannot adapt to different raw material formulations, and its mixing quality is difficult to ensure that it can be optimal under different formulations, which limits the traditional concrete mixer. When mixing different materials, the mixing quality cannot be optimal, or Affect stirring efficiency. The mixing shaft and blades are prone to residual mixing materials, and people need to enter the mixer to clean after the mixer is shut down, which is prone to danger. The frequency converter can change the starting conditions of the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28C7/02
CPCB28C7/026
Inventor 王建明陈理薛运锋
Owner SANYI ROBOT TECH CO LTD
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