阅读说明：本技术 搅拌车上装系统及其控制方法 (Mixer truck loading system and control method thereof ) 是由 赵强 曲万达 陈丽君 张国栋 张延恢 徐利文 于海洋 于 2021-10-08 设计创作，主要内容包括：本申请涉及一种搅拌车上装系统及其控制方法,搅拌车上装系统的控制方法包括控制器接收到下电信号时,对电机控制器断电,且电机控制器向控制器反馈电机的工作状态；若电机控制器反馈的电机的工作状态为运行时,则控制器向电机控制器发送禁止使能信号,并等待第一预设时间后执行高压下电流程,且电机控制器在第二预设时间后再次向控制器反馈电机的工作状态；若电机控制器反馈的电机的工作状态为停止运行时,控制器立即执行高压下电流程。上述控制方法,在控制器接收到下电信号而电机的工作状态为运行时,预留出时间使电机控制器控制电机停转,使电机和搅拌筒正常地结束工作流程,防止当电机和搅拌筒转速不为零时立刻高压下电,使下电过程更安全。(The application relates to a mixer truck loading system and a control method thereof, wherein the control method of the mixer truck loading system comprises the following steps that when a controller receives a lower electric signal, the motor controller is powered off, and the motor controller feeds back the working state of a motor to the controller; if the working state of the motor fed back by the motor controller is running, the controller sends an enable forbidding signal to the motor controller, executes a high-voltage power-off process after waiting for a first preset time, and feeds back the working state of the motor to the controller again after the motor controller waits for a second preset time; and if the working state of the motor fed back by the motor controller is stop operation, the controller immediately executes a high-voltage power-off process. According to the control method, when the controller receives the power-off signal and the working state of the motor is running, the time is reserved to enable the motor controller to control the motor to stop running, so that the motor and the mixing drum normally finish the working process, the situation that when the rotating speeds of the motor and the mixing drum are not zero, the motor and the mixing drum are immediately subjected to high-voltage power-off is prevented, and the power-off process is safer.)

1. A control method of a system on a mixer truck is characterized by comprising the following steps:

when the controller receives a power-off signal, the controller is powered off, and the motor controller feeds back the working state of the motor to the controller;

if the working state of the motor fed back by the motor controller is running, the controller sends an enable prohibition signal to the motor controller, executes a high-voltage power-off process after waiting for a first preset time, and feeds back the working state of the motor to the controller again after a second preset time;

and if the working state of the motor fed back by the motor controller is stop operation, the controller immediately executes a high-voltage power-off process.

2. The control method of the system on the mixer truck according to claim 1, wherein when the rotation speed of the motor is zero, the operating state of the motor is stopped;

and when the rotating speed of the motor is not zero, the working state of the motor is running.

3. The control method of the system on a mixer truck according to claim 1, wherein the first preset time is 5 to 10 seconds.

4. The control method of the mixer truck loading system according to claim 1, wherein the second preset time is 1 second.

5. The control method of a mixer truck loading system according to claim 1, further comprising the steps of:

when the controller receives a power-on signal, the controller supplies power to the motor controller, and the motor controller feeds back a work request signal to the controller;

when the controller receives the work request signal, whether a fault exists in the loading system of the mixer truck is judged;

if the system installed on the mixer truck has a fault, the controller sends out a fault alarm;

and if the mixer truck loading system has no fault, the controller sends an enabling signal to the motor controller.

6. The control method of a mixer truck loading system according to claim 1, further comprising the steps of:

when the controller receives a working signal, a working mode instruction matched with the working signal is sent to the motor controller, and the motor controller controls the motor to drive the mixing drum to work in a working mode corresponding to the working mode instruction.

7. The control method of a mixer truck loading system according to claim 1, characterized in that the operation mode includes:

an acceleration mode: the rotating speed of the forward rotation of the mixing drum is increased from zero to a first preset rotating speed;

feeding mode: the mixing drum rotates positively at the first preset rotating speed;

and (3) deceleration mode: the rotating speed of the forward rotation of the mixing drum is reduced to zero from the first preset rotating speed;

a discharging mode: the mixing drum rotates reversely at the first preset rotating speed;

shutdown mode: the rotating speed of the mixing drum is zero.

8. The control method of the system on the mixer truck according to claim 7, wherein the first preset rotation speed is 12-15 rpm.

9. The mixer truck loading system according to any one of claims 1 to 8, comprising:

a mixing drum;

the motor is in driving connection with the mixing drum and is used for driving the mixing drum to rotate;

the motor controller is electrically connected with the motor;

the controller is electrically connected with the motor controller;

and the power battery is used for supplying power to the controller, the motor controller and the motor.

10. The mixer truck loading system of claim 9, further comprising a display screen coupled to the controller, the display screen configured to send an operating signal to the controller.

Technical Field

The application relates to the technical field of mixer trucks, in particular to a mixer truck loading system and a control method thereof.

Background

Because the hydraulic drive's trucd mixer system of facial make-up has the shortcoming that the structure is complicated, transmission efficiency is low, along with the development of trucd mixer technique, has appeared electronic trucd mixer system of facial make-up, and this kind of mode is supplied power to the motor by the battery, and the speed reducer that motor drive and churn are connected to drive the churn and rotate.

However, in the mixer truck loading system in the related art, there is a problem that the mixing drum may work when the power is off, and the power is off at this time, which easily affects the work flow of the mixing drum and has a potential safety hazard.

Disclosure of Invention

Therefore, the mixer truck loading system and the control method thereof are needed to solve the problems that the mixing drum may work when the mixing drum is powered off, and the power off easily affects the work flow of the mixing drum and has potential safety hazards.

According to one aspect of the application, a control method of a mixer truck loading system is provided, and the control method of the mixer truck loading system comprises the following steps:

when the controller receives a power-off signal, the controller is powered off, and the motor controller feeds back the working state of the motor to the controller;

if the working state of the motor fed back by the motor controller is running, the controller sends an enable prohibition signal to the motor controller, executes a high-voltage power-off process after waiting for a first preset time, and feeds back the working state of the motor to the controller again after a second preset time;

and if the working state of the motor fed back by the motor controller is stop operation, the controller immediately executes a high-voltage power-off process.

According to the control method of the mixer truck loading system, after the controller receives the power-off signal, the motor controller feeds back the working state of the motor, and if the working state of the motor is running, the controller executes the high-voltage power-off process after waiting for the first preset time. Therefore, the controller sends the enable forbidding signal to the motor controller and waits for the first preset time, the reserved time enables the motor controller to control the motor to stop rotating, the motor and the mixing drum can normally finish the working process, and the situation that the motor and the mixing drum are subjected to high-voltage reduction immediately when the rotating speeds of the motor and the mixing drum are not zero is prevented, so that the safety of workers and workpieces in the power-down process of the loading system of the mixing truck is protected.

In one embodiment, when the rotating speed of the motor is zero, the working state of the motor is stop operation;

and when the rotating speed of the motor is not zero, the working state of the motor is running.

In one embodiment, the first predetermined time is 5 to 10 seconds.

In one embodiment, the second predetermined time is 1 second.

In one embodiment, the control method of the mixer truck loading system further includes the steps of:

when the controller receives a power-on signal, the controller supplies power to the motor controller, and the motor controller feeds back a work request signal to the controller;

when the controller receives the work request signal, whether a fault exists in the loading system of the mixer truck is judged;

if the system installed on the mixer truck has a fault, the controller sends out a fault alarm;

and if the mixer truck loading system has no fault, the controller sends an enabling signal to the motor controller.

In one embodiment, the control method of the mixer truck loading system further includes the steps of:

when the controller receives a working signal, a working mode instruction matched with the working signal is sent to the motor controller, and the motor controller controls the motor to drive the mixing drum to work in a working mode corresponding to the working mode instruction.

In one embodiment, the operation mode includes:

an acceleration mode: the rotating speed of the forward rotation of the mixing drum is increased from zero to a first preset rotating speed;

feeding mode: the mixing drum rotates positively at the first preset rotating speed;

and (3) deceleration mode: the rotating speed of the forward rotation of the mixing drum is reduced to zero from the first preset rotating speed;

a discharging mode: the mixing drum rotates reversely at the first preset rotating speed;

shutdown mode: the rotating speed of the mixing drum is zero.

In one embodiment, the first predetermined rotation speed is 12-15 rpm.

According to another aspect of the present application, there is provided a mixer truck loading system as described in any of the above embodiments, comprising:

a mixing drum;

the motor is in driving connection with the mixing drum and is used for driving the mixing drum to rotate;

the motor controller is electrically connected with the motor;

the controller is electrically connected with the motor controller;

and the power battery is used for supplying power to the controller, the motor controller and the motor.

In one embodiment, the mixer truck loading system further comprises a display screen, wherein the display screen is connected with the controller and used for sending working signals to the controller.

Drawings

FIG. 1 is a flow chart illustrating a method for controlling an on-board system of a mixer truck according to an embodiment of the present disclosure;

FIG. 2 is a flow chart of a method of controlling a truck-mounted system in accordance with another embodiment of the present application;

fig. 3 is a schematic view of a truck-mounted system according to an embodiment of the present disclosure.

In the figure: 10. a mixing drum; 20. a motor; 30. a motor controller; 40. a controller; 50. a power battery; 60. and a speed reducer.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. This application is capable of embodiments in many different forms than those described herein and that modifications may be made by one skilled in the art without departing from the spirit and scope of the application and it is therefore not intended to be limited to the specific embodiments disclosed below.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present application, "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Fig. 1 is a flowchart of a control method of a truck-mounted system of a mixer truck according to an embodiment of the present application.

Referring to fig. 1, a control method of a system installed on a mixer truck according to an embodiment of the present application includes:

s110: when the controller receives the lower electric signal, the motor controller is powered off, and the motor controller feeds back the working state of the motor to the controller.

It should be noted that the controller and the motor controller are both powered by a power battery, the power battery is arranged on a chassis of the mixer truck, and the mixer truck loading system obtains electricity from the power battery through an interface arranged on the chassis. In practical application, when a user disconnects the interface of the upper mounting system and the chassis, the controller receives a down electric signal.

Specifically, the controller powers off the motor controller, the motor controller sends a no-work request signal to the controller, and the motor controller feeds back the working state of the motor to the controller. When the controller receives the no-work request signal, the controller judges whether the working state of the motor is running. The no-operation request signal is a signal for requesting the motor to stop operating.

More specifically, a certain delay process can be realized after power failure through the power failure delay relay, and the power battery does not need to be switched on in the delay process, so that the motor controller can send a non-working request signal to the controller and feed back the working state of the motor after power failure.

S120: if the working state of the motor fed back by the motor controller is running, the controller sends an enable forbidding signal to the motor controller, executes a high-voltage power-off process after waiting for the first preset time, and feeds back the working state of the motor to the controller again after the second preset time.

When the rotating speed of the motor is not zero, the working state of the motor is running.

It can be understood that when the working state of the motor is running, the motor drives the mixing drum to rotate, the rotating speed of the mixing drum is not zero, and at the moment, if the high-voltage power-off process is executed immediately, the process of mixing materials by the mixing drum is interrupted immediately, so that danger is easily caused and the service life of a workpiece is easily influenced. Therefore, the controller sends a disable enable signal to the motor controller, the disable enable signal is used for stopping the motor, and the controller waits for the first preset time before executing the high-voltage power-down process. During the first preset time, the motor can stop rotating so as to drive the mixing drum to stop rotating, and the rotating speed of the mixing drum is prevented from being not zero when the high-voltage power-off process is executed, namely, the first preset time is set to reserve time so that each workpiece of the mixing truck loading system can normally finish working.

Optionally, the first preset time is 5-10 seconds.

And after the second preset time, the motor controller feeds back the working state of the motor to the controller again so as to confirm whether the enable inhibiting signal effectively controls the motor to stop rotating or not.

It can be understood that the second preset time is less than the first preset time, so that the controller executes the high-voltage power-off process after confirming that the rotation speed of the motor is zero. Specifically, the second preset time may be 1 second.

S130: and if the working state of the motor fed back by the motor controller is stop operation, the controller immediately executes a high-voltage power-off process.

When the rotating speed of the motor is zero, the working state of the motor is stop operation, and the rotating speed of the mixing drum is zero at the moment.

According to the control method of the mixer truck loading system, the controller sends the enable forbidding signal to the motor controller and waits for the first preset time, so that the motor controller controls the motor to stop rotating before the controller executes the high-voltage power-off process, and the mixing drum finishes the working process. And feeding back the working state of the motor to the controller again after the motor controller is in the second preset time, so as to ensure that the rotating speed of the motor is zero when the high-voltage power-off process is executed. So, prevent at once under the high pressure when motor and churn rotational speed are not zero and press down, make the lower electric process of trucd mixer facial make-up system safer, the life extension of work piece.

Fig. 2 is a flowchart of a control method of a truck-mounted system of a mixer truck according to another embodiment of the present disclosure.

In some embodiments, as shown in fig. 2, the method for controlling the truck-mounted system further comprises the steps of:

s210: when the controller receives the power-on signal, the controller supplies power to the motor controller, and the motor controller feeds back a work request signal to the controller.

The operation request signal is a signal for requesting the motor to start operating. In the practical application process, when a user connects the upper mounting system with an interface of a chassis of the mixer truck, namely when the controller is communicated with the power battery, the controller receives a power-on signal.

S220: and when the controller receives the work request signal, judging whether the loading system of the mixer truck has a fault.

Optionally, when the controller receives the work request signal, a self-test instruction is generated, and the self-test instruction is used for detecting the current state of each workpiece, for example, detecting whether the controller and the motor controller have faults. If any workpiece of the blender truck loading system has a fault, the controller sends a fault signal to a user, and the controller does not send an enabling signal to the motor controller, so that the workpieces are prevented from being started to be damaged more greatly under the condition that the workpieces cannot work normally.

Furthermore, the controller can also collect corresponding fault information to enable a user to know the components with faults and solve the fault problem in time, so that the user is prevented from misjudging the position where the faults occur, and time is saved.

S230: if the system installed on the mixer truck has a fault, the controller sends out a fault alarm;

and if the mixer truck loading system has no fault, the controller sends an enabling signal to the motor controller.

Wherein the enable signal is used to allow the motor to rotate. After the controller sends an enable signal to the motor controller, the motor controller can control the working state of the motor. Specifically, the motor controller may control the rotational speed, torque, and steering of the motor.

According to the embodiment, whether the loading system of the mixer truck has a fault is judged through the controller, so that each workpiece can be confirmed to normally run before the motor works, and the safety and the reliability of the loading system of the mixer truck are improved.

In some embodiments, the control method of the mixer truck loading system further comprises the steps of:

when the controller receives the working signal, a working mode instruction matched with the working signal is sent to the motor controller, and the motor controller controls the motor to drive the stirring drum to work in a working mode corresponding to the working mode instruction.

In the practical application process, a user selects the working mode of the mixing drum according to the use requirement. Wherein the different operating modes correspond to different rotational directions and rotational speeds of the mixing drum. The user enables the controller to receive the working signal through operation, the controller sends a working mode instruction to the motor controller, the motor controller controls the rotating speed and the rotating direction of the motor according to the working mode instruction, and the motor drives the mixing drum to rotate, so that the mixing drum works in a corresponding working mode.

Specifically, the operation modes include:

an acceleration mode: the rotating speed of the forward rotation of the mixing drum is increased from zero to a first preset rotating speed;

feeding mode: the stirring drum rotates positively at a first preset rotating speed;

and (3) deceleration mode: the rotating speed of the forward rotation of the mixing drum is reduced to zero from a first preset rotating speed;

a discharging mode: the mixing drum rotates reversely at a first preset rotating speed;

shutdown mode: the rotation speed of the mixing drum is zero.

It should be noted that the helical blade is arranged in the mixing drum, and when the mixing drum rotates forwards, the blade rotates forwards along with the mixing drum, so that the material is conveyed into the drum from the charging hole of the mixing drum, and the feeding is realized. When the feeding is finished, the blades keep rotating in the positive direction, so that the materials move in the stirring cylinder. When the mixing drum rotates reversely, the blades rotate reversely along with the mixing drum, and the blades drive the materials to be conveyed out of the mixing drum, so that the materials are discharged through a discharge opening at the tail part of the mixing truck.

It will be appreciated that the operating modes also include an acceleration mode and a deceleration mode to enable the mixing drum to be switched between the stop mode and the feed mode. The acceleration mode can also comprise that the rotating speed of the reverse rotation of the mixing drum is increased from zero to a first preset rotating speed, and the deceleration mode comprises that the rotating speed of the reverse rotation of the mixing drum is reduced from the first preset rotating speed to zero, so that the mixing drum is switched between the stop mode and the deceleration mode.

In the above embodiment, different working modes are set, so that the mixing drum has a function of realizing a normal working process. For example, in one work flow of the mixer truck from loading, transporting material to the unloading site and unloading, the mixing drum first operates in an acceleration mode, and enters a feeding mode after reaching a first preset rotation speed, at which time the material is put into the mixing drum from the feeding port, and in order to prevent the material from hardening during transportation, the mixing drum rotates positively at a speed, which may be less than the first preset rotation speed, while the mixer truck transports the material. After the material is discharged, the mixing drum works in a discharging mode to discharge the material from the mixing drum, after the material is discharged, the mixing drum works in a speed reduction mode, and when the rotating speed of the mixing drum is reduced to zero, the mixing drum enters a shutdown mode to save electric energy.

Specifically, the first preset rotating speed is 12-15 rpm.

The control method for the loading system of the mixer truck comprises a control method for the power-on process, the working process and the power-off process of the loading system of the mixer truck. When the controller receives the electrifying signal, the motor controller feeds back a work request signal to the controller, and the controller judges whether each workpiece has a fault or not so as to confirm that the loading system of the mixer truck has no fault before the motor works. And when no fault is confirmed, the controller sends an enabling signal to the motor controller, the controller can receive the working signal at the moment, the controller sends a working mode instruction to the motor controller, and the motor controller controls the motor to drive the mixing drum to work in a corresponding working mode. When the power is off, the controller receives the power-off signal, the motor controller feeds back the working state of the motor to the controller, if the working state is running, the controller sends a disable enable signal to the motor controller and executes a high-voltage power-off process after waiting for a first preset time, so that the rotating speed of the motor is zero when the controller executes the high-voltage power-off process. Therefore, the mixer truck loading system is driven by electric energy, the defects of long power chain and low transmission efficiency in hydraulic driving are overcome, the power-on process and the power-off process of the mixer truck loading system are safer, workpieces are protected, and the reliability is improved.

Fig. 3 is a schematic view of a truck-mounted system according to an embodiment of the present disclosure.

As shown in fig. 3, the present application further provides a mixer truck loading system as in any one of the above embodiments, which includes a mixing drum 10, a motor 20, a motor controller 30, a controller 40 and a power battery 50.

The motor 20 is in driving connection with the mixing drum, and the motor 20 is used for driving the mixing drum to rotate. The motor controller 30 is electrically connected to the motor 20 and is configured to control the rotation speed and the rotation direction of the motor 20. The controller 40 is electrically connected to the motor controller 30, and is configured to receive the power-on signal, the working signal, and the power-off signal, and further configured to send an instruction to the motor controller 30 and receive a feedback signal of the motor controller 30. The power battery 50 is used to supply power to the controller 40, the motor controller 30, and the motor 20.

Further, the mixer truck loading system further comprises a speed reducer 60. The speed reducer 60 is provided between the mixing drum 10 and the motor 20, and is configured to reduce the rotation speed and increase the torque, that is, to transmit the power of the high-speed operation of the motor 20 to the mixing drum 10, and to match the rotation speed so as to make the mixing drum 10 reach the rotation speed corresponding to the operation mode.

In one embodiment, the mixer drum 10 is disposed on the chassis of the mixer truck, the speed reducer 60 is disposed at one end of the mixer drum 10, and the motor 20 is disposed at the other end of the speed reducer 60 away from the mixer drum 10. The power battery 50 is disposed on the chassis and electrically connected to the controller 40, the motor controller 30 and the motor 20.

Optionally, the mixer truck loading system further includes a display screen, the display screen is connected to the controller 40, and the display screen is configured to send an operating signal to the controller 40. For example, the display may include a plurality of keys corresponding to different operation modes, and during actual application, the user operates different keys to enable the controller 40 to receive different operation signals. Further, the display screen can also be used for displaying the running state and the fault information of the system installed on the mixer truck.

The mixer truck loading system provided in the above embodiment has the advantages of simple structure, short power chain and convenience in operation.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.