阅读说明：本技术 混凝土泵送系统、混凝土泵送设备和控制方法 (Concrete pumping system, concrete pumping equipment and control method ) 是由 杨司空 赵雄 邹波 于 2020-05-29 设计创作，主要内容包括：本发明提供了混凝土泵送系统、混凝土泵送设备和控制方法。混凝土泵送系统包括：料斗,料斗内设置有切换管；泵送机构,包括两个输送缸,适于泵送混凝土物料；输送管,输送管通过切换管与两个输送缸可选择地连通,适于输送混凝土物料；检测装置,设置于输送管上,适于获取流经输送管的混凝土物料的输出参数；控制装置,与检测装置通讯连接；其中,控制装置用于获取检测装置的输出参数,并根据输出参数控制泵送机构的泵送频率。本发明能够对混凝土泵送系中流体物料的流动阻力,即：管损,进行准确测量,并由此提高产品设计、工艺优化和使用调试过程的效率和精准程度。(The invention provides a concrete pumping system, concrete pumping equipment and a control method. The concrete pumping system comprises: the hopper is internally provided with a switching pipe; the pumping mechanism comprises two conveying cylinders and is suitable for pumping concrete materials; the conveying pipe is selectively communicated with the two conveying cylinders through the switching pipe and is suitable for conveying concrete materials; the detection device is arranged on the conveying pipe and is suitable for acquiring the output parameters of the concrete material flowing through the conveying pipe; the control device is in communication connection with the detection device; the control device is used for acquiring the output parameters of the detection device and controlling the pumping frequency of the pumping mechanism according to the output parameters. The invention can resist the flow resistance of the fluid materials in the concrete pumping system, namely: and (4) measuring the pipe loss accurately, and improving the efficiency and the accuracy of product design, process optimization and use debugging process.)

1. A concrete pumping system, comprising:

the hopper is internally provided with a switching pipe;

the pumping mechanism comprises two conveying cylinders and is suitable for pumping concrete materials;

the conveying pipe is selectively communicated with the two conveying cylinders through the switching pipe and is suitable for conveying the concrete materials;

the detection device is arranged on the conveying pipe and is suitable for acquiring the output parameters of the concrete material flowing through the conveying pipe;

the control device is in communication connection with the detection device;

the control device is used for acquiring the output parameter of the detection device and controlling the pumping frequency of the pumping mechanism according to the output parameter.

2. The concrete pumping system of claim 1, wherein the output parameters include at least one or a combination of:

flow, flow rate, volume, pumping efficiency of concrete output.

3. The concrete pumping system of claim 2, wherein the pumping mechanism further comprises:

the two main oil cylinders are respectively in driving connection with the two conveying cylinders;

the control valves are arranged on the driving oil paths of the two main oil cylinders;

the control device is also connected with the control valve and is used for controlling the actions of the two master cylinders through the control valve so as to control the pumping frequency of the pumping mechanism.

4. Concrete pumping system according to claim 3,

the control device is used for determining a target pumping frequency interval according to the relation between the pumping efficiency and the pumping frequency and controlling the reversing of the two main oil cylinders through the control valve so as to enable the pumping mechanism to operate in the target pumping frequency interval.

5. Concrete pumping system according to any one of claims 1 to 4,

the detection device is an electromagnetic flow sensor, and the electromagnetic flow sensor is installed on the upward inclined output section of the conveying pipe.

6. Concrete pumping system according to any one of claims 1 to 4, characterized in that the detection means comprise electromagnetic induction detection means comprising:

a magnetic field applying unit adapted to apply a magnetic field to the concrete material so that the concrete material generates an induced voltage;

the acquisition unit is suitable for acquiring the induction voltage and outputting an acquisition signal according to the induction voltage;

and the processing unit is suitable for receiving the acquisition signals and acquiring the output parameters according to the acquisition signals.

7. Concrete pumping system according to any one of claims 1 to 4, characterized in that the delivery pipe comprises:

detecting a pipeline section;

the protective lining layer is arranged on the periphery of the inner wall of the detection pipeline section;

the detection device is arranged on the detection pipeline section and is suitable for detecting the concrete material flowing through the detection pipeline section.

8. The concrete pumping system of claim 7, wherein the protective liner layer comprises at least one of:

the ceramic material protects the inner liner, the metal material protects the inner liner, and the wear-resistant composite material protects the inner liner.

9. The concrete pumping system of claim 7, further comprising:

a first connection portion;

the second connecting part is arranged on the detection pipeline section;

a fastener;

the first connecting portion and the second connecting portion are matched with each other, and the fastening piece penetrates through the first connecting portion and the second connecting portion respectively to fix the detection pipeline section.

10. Concrete pumping equipment, characterized in that it comprises:

a chassis;

concrete pumping system according to any one of claims 1 to 9, arranged on the chassis.

11. A control method of a concrete pumping system, adapted to control a concrete pumping system according to any one of claims 1 to 9, characterized in that it comprises the steps of:

acquiring output parameters of concrete materials in a pumping mechanism;

controlling the pumping frequency of the pumping mechanism according to the output parameter;

wherein the output parameters include at least one or a combination of: flow, flow rate, volume, pumping efficiency of concrete output.

12. The method of claim 11, wherein the output parameter includes pumping efficiency, and the step of controlling the pumping frequency of the pumping mechanism according to the output parameter includes:

determining a target pumping frequency interval according to the relation between the pumping efficiency and the pumping frequency;

controlling the pumping mechanism to adjust a pumping frequency of the pumping mechanism to the target pumping frequency interval.

Technical Field

The invention relates to the technical field of concrete pumping systems, in particular to a concrete pumping system, concrete pumping equipment and a control method.

Background

The concrete pumping system is used for pumping the building construction materials such as concrete, mortar and cement which can flow. How to accurately collect and count the material flow in a concrete pumping system is always a technical problem to be solved urgently in the field.

Disclosure of Invention

The present invention is directed to solving at least one of the above problems.

To this end, a first object of the present invention is to provide a concrete pumping system.

A second object of the present invention is to provide a concrete pumping apparatus.

The third purpose of the invention is to provide a control method of the concrete pumping system.

To achieve the first object of the present invention, an embodiment of the present invention provides a concrete pumping system, including: the hopper is internally provided with a switching pipe; the pumping mechanism comprises two conveying cylinders and is suitable for pumping concrete materials; the conveying pipe is selectively communicated with the two conveying cylinders through the switching pipe and is suitable for conveying concrete materials; the detection device is arranged on the conveying pipe and is suitable for acquiring the output parameters of the concrete material flowing through the conveying pipe; the control device is in communication connection with the detection device; the control device is used for acquiring the output parameters of the detection device and controlling the pumping frequency of the pumping mechanism according to the output parameters.

This embodiment adopts detection device to carry out real-time detection and collection to the concrete material. When the concrete material flows through the detection device, an induction signal is generated between the concrete material and the detection device, and the detection device judges and obtains output parameters such as the flow or the volume of the concrete material flowing through the detection device according to the induction signal generated by the induction signal. When accurate output parameters are obtained, the control device can correspondingly control the pumping frequency of the pumping mechanism so as to achieve the purposes of improving the production efficiency, saving the production cost and improving the production quality.

In addition, the technical solution provided by the above embodiment of the present invention may further have the following additional technical features:

in the above technical solution, the output parameter includes at least one of the following or a combination thereof: flow, flow rate, volume, pumping efficiency of concrete output.

In this embodiment, the flow rate refers to the total amount of concrete material flowing through at a certain point in time. The flow rate of the present embodiment may be calculated statistically, for example, in cubic meters per minute. The flow rate is the flow rate of the concrete material actually flowing through the concrete material in a certain period of time. The flow velocity of the present embodiment may be calculated and counted in units of meters/minute, meters/second, and the like. Pumping efficiency refers to the volume of concrete material that actually flows through over a certain period of time.

In any of the above technical solutions, the pumping mechanism further includes: the two main oil cylinders are respectively in driving connection with the two conveying cylinders; the control valves are arranged on the driving oil paths of the two main oil cylinders; the control device is also connected with the control valve and used for controlling the actions of the two main oil cylinders through the control valve so as to control the pumping frequency of the pumping mechanism.

In the embodiment, the control device controls the two master cylinders to act through the control valve, so that the pumping frequency can be stably and accurately controlled.

In any of the above technical solutions, the pumping efficiency is the volume of the pumped concrete in unit time, the pumping frequency is the reversing times of the two master cylinders in unit time, and the control device is configured to determine a target pumping frequency interval according to the relationship between the pumping efficiency and the pumping frequency, and control the reversing of the two master cylinders through the control valve, so that the pumping mechanism operates in the target pumping frequency interval.

The control device determines a target pumping frequency interval according to the relation between the pumping efficiency and the pumping frequency, and then the control valve further performs reversing under the control of the control device. Therefore, the pumping mechanism can be controlled according to the target pumping frequency interval, so that the pumping mechanism can be ensured to operate in the target pumping frequency interval.

Among any one of the above-mentioned technical scheme, detection device is electromagnetic flow sensor, and electromagnetic flow sensor installs on the ascending output section of slope of conveyer pipe.

The electromagnetic flow sensor may be mounted at any position on the output section in the inclined upward direction. The electromagnetic flow sensor is also provided with a ceramic lining as a protective lining layer. The protective lining layer can greatly improve the wear resistance of the product so as to resist the erosion of concrete to the pipe wall and prolong the service life of the product.

In any one of the above technical solutions, the detecting device includes an electromagnetic induction detecting device, and the electromagnetic induction detecting device includes: a magnetic field applying unit adapted to apply a magnetic field to the concrete material so that the concrete material generates an induced voltage; the acquisition unit is suitable for acquiring the induction voltage and outputting an acquisition signal according to the induction voltage; and the processing unit is suitable for receiving the acquired signals and acquiring output parameters according to the acquired signals.

The embodiment can acquire the acquisition signal corresponding to the flow velocity of the concrete material. The device has the advantages of high precision, sensitive reaction, simple structure, low cost and convenient installation.

In any of the above technical solutions, the delivery pipe includes: detecting a pipeline section; the protective lining layer is arranged on the periphery of the inner wall of the detection pipeline section; the detection device is arranged on the detection pipeline section and is suitable for detecting concrete materials flowing through the detection pipeline section.

The function of the protective lining layer is to effectively protect the inner wall of the section of the pipeline flowing through the detection pipeline. The protective lining layer is made of materials with excellent wear resistance, and can greatly improve the wear resistance of the detection pipeline section flowing through the protective lining layer, so that the detection pipeline section can resist the scouring or impact of materials such as cement, mortar and concrete on the pipe wall of the detection pipeline section, and the service life of the detection pipeline section is prolonged.

In any of the above technical solutions, the protective lining layer includes at least one of: the ceramic material protects the inner liner, the metal material protects the inner liner, and the wear-resistant composite material protects the inner liner.

The ceramic material protection lining layer of the embodiment can be obtained by sintering inorganic nonmetallic oxides such as silicon oxide, aluminum oxide, zirconium oxide and the like at high temperature. The ceramic material protects the lining layer, has high mechanical strength and excellent wear resistance, and can greatly withstand the scouring or impact of materials such as cement, mortar, concrete and the like.

In any of the above technical solutions, the first connection portion; the second connecting part is arranged on the detection pipeline section; a fastener; wherein, first connecting portion and second connecting portion mutually support, and the fastener runs through first connecting portion and second connecting portion respectively to fixed detection pipeline section.

The first connecting portion and the second connecting portion are arranged in pairs and are mutually connected and matched. Thereby, the pipe section and the conveying pipe can be aligned and connected with each other.

To achieve the second object of the present invention, an embodiment of the present invention provides a concrete pumping apparatus including: a chassis; according to the concrete pumping system provided by any embodiment of the invention, the concrete pumping system is arranged on the chassis.

The concrete pumping equipment of the embodiment comprises the concrete pumping system as in any embodiment of the invention, has all the beneficial effects of the concrete pumping system as in any embodiment of the invention, and is not described herein again.

To achieve the third object of the present invention, an embodiment of the present invention provides a control method for a concrete pumping system, which is suitable for controlling the concrete pumping system according to any embodiment of the present invention, and the control method for the concrete pumping system includes the following steps: acquiring output parameters of concrete materials in a pumping mechanism; controlling the pumping frequency of the pumping mechanism according to the output parameters; wherein, the output parameter comprises at least one of the following or the combination thereof: flow, flow rate, volume, pumping efficiency of concrete output.

The control method of the concrete pumping system according to the embodiment is suitable for controlling the concrete pumping system according to any embodiment of the present invention, and has all the advantages of the concrete pumping system according to any embodiment of the present invention, and details are not repeated herein.

In the above technical solution, the output parameter includes a pumping efficiency, and the step of controlling the pumping frequency of the pumping mechanism according to the output parameter includes: determining a target pumping frequency interval according to the relation between the pumping efficiency and the pumping frequency; controlling the pumping mechanism to adjust a pumping frequency of the pumping mechanism to the target pumping frequency interval.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a schematic view of a related art pumping apparatus for substantially sucking material;

FIG. 2 is a schematic view showing insufficient suction of a pumping device in the related art;

FIG. 3 is a schematic structural diagram of a concrete pumping system according to some embodiments of the present invention;

FIG. 4 is a schematic diagram of the components of a detection apparatus according to some embodiments of the present invention;

FIG. 5 is a graphical illustration of pumping efficiency versus pumping frequency for a concrete pumping system according to some embodiments of the present invention;

FIG. 6 is a flow chart of a first step of a control method of a concrete pumping system according to some embodiments of the present invention;

FIG. 7 is a flow chart of a second step of a control method of a concrete pumping system according to some embodiments of the present invention;

FIG. 8 is a perspective view of a concrete pumping system according to some embodiments of the present invention;

fig. 9 is a schematic composition diagram of concrete pumping equipment according to some embodiments of the present invention.

Wherein, the correspondence between the reference numbers and the component names in fig. 1 to 2 is:

100': concrete pumping system, 200': and (3) concrete materials.

The correspondence between the reference numerals and the names of the components in fig. 3 to 9 is:

100: concrete pumping system, 110: a hopper, 112: switching tube, 120: pumping mechanism, 122: delivery cylinder, 124: master cylinder, 126: control valve, 130: delivery pipe, 132: detection line section, 134: protective liner layer, 136: inclined upward output section, 140: detection means, 142: magnetic field applying unit, 144: acquisition unit, 146: processing unit, 150: control device, 160: first connection portion, 170: second connection portion, 180: fastener, 200: and (3) concrete materials.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, a more particular description of the invention will be rendered by reference to the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

A concrete pumping system 100 and a control method of the concrete pumping system according to some embodiments of the present invention will be described with reference to fig. 1 to 9.

Concrete pumping systems, such as pump trucks, trailer pumps, and truck pumps, are capable of pumping flowable materials, such as concrete, mortar, cement, and the like. In the pumping process, an operator needs to collect and count the pumping flow of the material so as to know the real-time material pumping state of the concrete pumping system. The material pumping state mainly comprises the flow rate and/or volume of the material. The pumping volume is also called pumping volume, and the pumping volume refers to the volume quantity of the concrete material in unit of cubic meter.

In order to acquire the information, the technical scheme of detecting the discharge volume of the discharge hole of the concrete pumping system by a visual sensor is adopted in the related technology to realize the measurement of the discharge volume. However, there are disadvantages in that: the visual sensor can not realize accurate detection of the discharge volume. In addition, the related art also has a technical scheme of obtaining the discharge volume through theoretical calculation. The scheme utilizes the pump times to multiply the geometric dimension of the conveying cylinder to obtain the theoretical discharge volume. However, the theoretical value obtained by calculation is generally different from the actual value. The reason for this is that the theoretical calculation does not take into account the suction efficiency during the pumping process. For example, as shown in fig. 1, the related art employs a concrete pumping system 100 'to pump and convey concrete materials 200', and calculates a theoretical discharge volume according to a formula. However, fig. 1 shows the concrete material pumping situation in an ideal or theoretical state. As shown in fig. 2, it is impossible for the delivery cylinder to be filled with concrete material during the actual pumping process. Therefore, the actual suction efficiency is often less than 100%, but the theoretical calculation is carried out according to the suction efficiency of 100%. Therefore, the technical solutions of theoretical calculation in the related art still cannot obtain accurate pumping flow and/or volume.

In view of the above, the following embodiments of the present invention improve the concrete pumping system 100 and the control method of the concrete pumping system, and thereby achieve the purpose of accurately collecting and counting the pumping flow and/or volume.