Intelligent tube drawing device

Abstract

The utility model relates to the technical field of mixed loading explosive trucks, in particular to an intelligent tube drawing device. The intelligent pipe drawing device comprises a controller, a conveying pipe, a hopper, a conveying pump motor, a conveying pump, a flow meter, a reel rack, a reel and a reel motor, the controller is in communication connection with the conveying pump motor and the reel motor, the conveying pipe is coiled on the reel, one end of the conveying pipe is communicated with the conveying pump, the hopper is communicated with the conveying pump, and the conveying pump motor is in transmission connection with the conveying pump. The reel and the reel motor are arranged on the reel rack, the reel motor is in transmission connection with the reel, the visual element, the flow meter and the encoder are respectively in communication connection with the controller, the visual element and the encoder are arranged on the reel rack, the flow meter is arranged on the conveying pipe, the encoder is in transmission connection with the reel motor, and the visual element is in communication connection with the controller. The filling liquid level height can be kept between the end face of a discharging opening in the tail end of an explosive conveying pipe and the surface of a mixed loading explosive filling liquid level during explosive loading, and the pipe can be synchronously pulled out along with the mixed loading explosive filling liquid level height in a blast hole.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of mixed explosive truck, specifically relates to an intelligent pipe pulling device. BACKGROUND

[0002] The mixed explosive truck includes a mixed emulsion explosive truck and a mixed water gel explosive truck. During operation of the mixed explosive truck, the mixed explosive truck can use a delivery pump to pump mixed explosive from a storage bin into a blast hole through a delivery pipe.

[0003] In order to overcome the large block at the bottom of the blast hole, the mixed explosive truck fills mixed explosive with different blasting power in the blast hole, high-power explosive at the bottom of the blast hole and slightly lower-power mixed explosive in the rest. In order to eliminate the collision and convolution of the end face of the discharge port at the end of the delivery pipe when filling the blast hole with mixed explosive, the mixed explosive is free-falling from top to bottom into the bottom of the blast hole, and the mixed explosive is disordered in the blast hole, resulting in poor blasting effect. Therefore, during the filling process, the mixed explosive truck needs to maintain a filling liquid level height between the end face of the discharge port at the end of the delivery pipe and the mixed explosive filling liquid level surface, and needs to be synchronized with the mixed explosive filling liquid level height.

[0004] At present, the following two methods are used for synchronous pipe pulling: one is mechanical pipe pulling, and the existing mechanical pipe pulling usually has a controller that controls the pipe pulling speed according to the manually input pipe pulling speed. However, in actual application, it is difficult to truly match the pipe pulling speed with the blast hole filling speed due to the lack of real-time monitoring of the moving speed of the delivery pipe. The other is manual pipe pulling, which requires multiple people to work together and takes a long time, and it is also difficult to match the filling speed. Because of the two methods, the pipe pulling speed is too fast or too slow, resulting in discontinuous filling of mixed explosive. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem of providing an intelligent pipe pulling device that can maintain a filling liquid level height between the end face of the discharge port at the end of the delivery pipe and the mixed explosive filling liquid level surface during filling, and synchronize the pipe pulling with the mixed explosive filling liquid level height in the blast hole, realize unmanned and continuous filling of mixed explosive, ensure that the mixed explosive is fully filled in the blast hole, and achieve the effect of coupled filling.

[0006] In order to solve the above technical problems, the utility model provides the following technical scheme:

[0007] The utility model provides a kind of intelligent pipe pulling device, comprising: controller, conveying pipe, hopper, conveying pump motor, conveying pump, flowmeter, reel rack, reel, reel motor, the controller is connected with conveying pump motor, reel motor communication, the conveying pipe disc is set on reel and one end is communicated with conveying pump, the hopper is communicated with conveying pump, the conveying pump motor is drivingly connected with conveying pump, the reel and reel motor are arranged on reel rack, the reel motor is drivingly connected with reel, it further include: respectively with the visual element, flowmeter, encoder of controller communication connection, the visual element and encoder are arranged on reel rack, the flowmeter is arranged on conveying pipe, the encoder is drivingly connected with reel motor, the conveying pipe single layer uniform distribution disc is set on reel.

[0008] By adopting the above technical scheme, in use, first, the visual element collects the blast hole diameter and transmits it to the controller, at this time, the controller calculates the charge amount of mixed charge per meter in the blast hole according to the collected blast hole diameter and the density of the material in the blast hole; then, the controller extends the discharge port at the end of the conveying pipe into the bottom of the blast hole. After the discharge port at the end of the conveying pipe is extended into the bottom of the blast hole, the controller controls the conveying pump motor to make the conveying pump start working, and pumps the mixed charge in the hopper into the blast hole through the conveying pipe. When charging, the controller first processes the charge amount of mixed charge per meter in the current blast hole and the flow data value of the flowmeter, calculates the theoretical value of the pipe pulling speed of the conveying pipe under the existing flow and the charge amount per meter, then drives the reel motor to rotate, at the same time, the encoder collects the rotation speed signal of the reel, the controller calculates the actual value of the actual pipe pulling speed based on the encoder signal, and obtains the speed difference value by comparing the theoretical value and the actual value, and adjusts the rotation speed of the reel motor in real time according to the speed difference value, so that the actual pipe pulling speed is consistent with the theoretical pipe pulling speed, thereby ensuring that the end face of the discharge port at the end of the conveying pipe and the mixed charge filling liquid level surface maintain a filling liquid level height when charging, and the conveying pipe is pulled out of the blast hole synchronously with the mixed charge filling liquid level height in the blast hole, realizing unmanned and continuous charging of mixed charge, ensuring that the mixed charge is fully filled in the blast hole, and achieving unmanned and intelligent charging at the blasting site and reducing the number of personnel at the blasting site.

[0009] Optionally, a reel motor sprocket is coaxially arranged on the driving end of the reel motor, and an encoder sprocket is coaxially arranged on the measuring shaft of the encoder, and a transmission chain is arranged on the reel motor sprocket and the encoder sprocket.

[0010] By adopting the above technical scheme, the transmission between the reel motor and the encoder can be realized through the transmission chain and the two sprockets, so that the rotation speed of the reel motor can be obtained.

[0011] Optionally, the diameter of the reel motor sprocket is greater than the diameter of the encoder sprocket.

[0012] By adopting the technical scheme, the ratio of the diameter of the reel motor chain wheel to the diameter of the encoder chain wheel influences the accuracy of controlling the rotation speed of the reel motor, and when the ratio is larger, the encoder can send enough signals to the controller even if the reel motor rotates a small angle, and by setting the diameter of the reel motor chain wheel to be larger than the diameter of the encoder chain wheel, higher control accuracy can be achieved.

[0013] Optionally, the visual element is a camera.

[0014] By adopting the technical scheme, the camera can directly obtain the blast hole diameter and the mixed charge density.

[0015] Optionally, the flow meter is located at one end of the conveying pipe close to the conveying pump.

[0016] By adopting the technical scheme, the flow of the mixed charge can be better measured in real time.

[0017] To sum up, the utility model at least has the following beneficial technical effects:

[0018] 1. By adopting the intelligent pipe pulling device, the actual pipe pulling speed can be consistent with the theoretical pipe pulling speed, so that the end face of the discharge port of the conveying pipe can be kept at a filling liquid level height from the surface of the mixed charge during charging, and the pipe can be pulled synchronously with the filling liquid level height of the mixed charge in the blast hole, so that the continuity of unmanned charge of the mixed charge is ensured, and the mixed charge can be fully filled in the blast hole, so that the effect of coupled charge is achieved.

[0019] 2. After synchronous pipe pulling is achieved, the intelligent pipe pulling device can effectively eliminate the situation that the end face of the discharge port of the conveying pipe collides and convolves when mixed explosive is free-falling from top to bottom into the bottom of the blast hole during blast hole charging, and the mixed explosive will not be disordered in the blast hole, so that the blasting effect can be effectively improved. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 FIG. 1 is a structural schematic view of the intelligent pipe pulling device.

[0021] Figure 2 FIG. 3 is a local schematic view of a reel motor chain wheel and an encoder chain wheel.

[0022] Mark 1, controller; 2, conveying pipe; 3, visual element; 4, hopper; 5, conveying pump motor; 6, conveying pump; 7, flow meter; 8, reel rack; 9, reel; 10, reel motor; 11, transmission chain; 12, encoder; 13, reel motor chain wheel; 14, encoder chain wheel. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples.

[0024] The terms used in the following embodiments of the utility model are only for the purpose of describing specific embodiments, and are not intended to be limiting on the utility model. As used in the specification and the appended claims of the utility model, the singular forms "a," "an," "the," "upper," "above," "the" and "this" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" used in the utility model means and includes any or all possible combinations of one or more listed items. The term "exemplary" means "serving as an example, embodiment or illustration," and any embodiment described as "exemplary" is not necessarily to be construed as preferred or superior over other embodiments. The terms "first," "second" are only for the purpose of description, and cannot be understood as implying or suggesting relative importance or implicitly indicating the number of indicated technical features. Therefore, the features limited by "first," "second" can explicitly or implicitly include one or more features, and in the description of the embodiments of the utility model, unless otherwise specified, the meaning of "multiple" is two or more.

[0025] The utility model embodiment provides a kind of intelligentization pipe pulling device.

[0026] Reference Figure 1 A kind of intelligentization pipe pulling device, comprising: controller 1, blanking component, conveying pipe 2, pipe pulling component and visual element 3.

[0027] Conveying pipe 2 single-layer uniform distribution disc is arranged on pipe pulling component, one end of conveying pipe 2 is communicated with blanking component, and the other end can be lowered into blast hole. Visual element 3 is arranged on pipe pulling component, and is used for carrying out real-time detection on the height of the end face of the discharge port end of the end of conveying pipe 2 lowered into blast hole and mixed charge filling liquid level surface. Controller 1 is respectively communicated with blanking component, pipe pulling component and visual element 3. Visual element 3 can adopt camera and be towards ground.

[0028] The discharging assembly comprises a hopper 4, a conveying pump motor 5, a conveying pump 6 and a flow meter 7. The hopper 4, the conveying pump motor 5 and the conveying pump 6 are arranged on the mixed explosive loading vehicle, the driving end of the conveying pump motor 5 is in transmission connection with the conveying pump 6, the discharging end of the hopper 4 is in communication with the feeding end of the conveying pump 6, the discharging end of the conveying pump 6 is in communication with the conveying pipe 2, the flow meter 7 is installed on the conveying pipe 2, and the controller 1 is in communication connection with the conveying pump motor 5 and the flow meter 7. The conveying pump 6 and the hopper 4 are connected by flanges, and the conveying pump 6 and the conveying pipe 2 are connected by flanges. The flow meter 7 is located at one end of the conveying pipe 2 close to the conveying pump 6, and the flow meter 7 transmits the flow signal in the conveying pipe 2 to the controller 1 through a control line.

[0029] With reference to Figure 1 and Figure 2 The pipe pulling assembly comprises a reel rack 8, a reel 9, a reel motor 10, a transmission chain 11 and an encoder 12. The reel rack 8 is installed on the mixed explosive loading vehicle, the reel 9 is rotationally connected to the reel rack 8, and the single-layer uniformly distributed disc of the conveying pipe 2 is arranged on the reel 9. The visual element 3, the reel motor 10 and the encoder 12 are fixedly connected to the reel rack 8, and the driving end of the reel motor 10 is in transmission connection with the reel 9. A reel motor sprocket 13 is coaxially sleeved and fixed on the driving end of the reel motor 10, an encoder sprocket 14 is coaxially sleeved and fixed on the measuring shaft of the encoder 12, the diameter of the reel motor sprocket 13 is greater than the diameter of the encoder sprocket 14, and the transmission chain 11 is sleeved on the reel motor sprocket 13 and the encoder sprocket 14. The controller 1 is in communication connection with the reel motor 10 and the encoder 12.

[0030] The conveying pump motor 5 and the reel motor 10 are connected with a power driving system through a power driving line, and the power driving system is in communication connection with the controller 1. The controller 1 can provide power for the conveying pump motor 5 and the reel motor 10 through the power driving system, so as to drive the conveying pump motor 5 to make the conveying pump 6 pump the mixed explosive in the hopper 4 into the blast hole through the conveying pipe 2, and drive the reel motor 10 to make the reel 9 rotate under the real-time detection of the visual element 3, so as to achieve the purpose of pulling the pipe of the conveying pipe 2. The visual element 3, the flow meter 7 and the encoder 12 are directly connected with the controller 1 through a control line. The controller 1 can collect the flow information of the mixed explosive in the conveying pipe 2 and the rotating speed information of the reel 9 through the flow meter 7 and the encoder 12 connected through the control line, so as to control the power driving system, and then control the pumping efficiency of the conveying pump 6 and the pipe pulling speed of the reel 9, so as to ensure that the end face of the discharging port of the pipe end of the mixed explosive is kept at a filling liquid level height L, and the pipe is pulled synchronously with the filling liquid level height of the mixed explosive in the blast hole, so as to ensure the continuousness of the unmanned explosive loading, make the mixed explosive filled in the blast hole fully, and achieve the effect of coupled explosive loading.

[0031] The calculation formula of the pipe pulling theoretical speed is as follows:

[0032] V L = P v / Q

[0033] wherein, V L represents the theoretical pulling speed, unit: m / s. Q represents the charge quantity of each meter of mixed charge in the blast hole, unit: kg / m. The value of Q is calculated by the diameter D1 of the blast hole collected by the visual element 3 and transmitted to the controller 1 through the control circuit, and the density of the material in the blast hole (the density of the mixed charge). The diameter D1 of the blast hole is in units of m. v P represents the flow data value collected by the controller 1 of the flow meter 7, unit: kg / s.

[0034] The calculation formula of the actual pulling speed is:

[0035] V k = π·D2·n2

[0036] wherein, V k represents the actual pulling speed, unit: m / s. D2 represents the diameter of the reel 9, unit: m. n2 represents the rotating speed of the reel motor 10, unit: r / s. The rotating speed of n2 is connected by the encoder 12 through the transmission chain 11 wheel and the encoder sprocket 14 of the reel motor sprocket 13, and the actual pulling speed V k is fed back to the controller 1. When the conveying pipe 2 is automatically pulled, the controller 1 calculates the theoretical pulling speed V L according to the calculation formula of the theoretical pulling speed, outputs the control signal to the power driving system, and drives the reel motor 10 to rotate according to the control signal. At the same time, the controller 1 collects the encoder signal connected with the reel motor 10 through the transmission chain 11, and compares the difference between the actual pulling speed V k and the theoretical pulling speed V L , and sends the control signal to the power driving system according to the speed difference to adjust the rotating speed of the reel motor 10 in real time, so that the actual pulling speed V k is consistent with the theoretical pulling speed V L , and the end face of the mixed charge conveying pipe outlet is kept at a filling liquid level height L, and rises synchronously with the filling liquid level height in the blast hole.

[0037] In order to improve the accuracy of the automatic pulling speed, the diameter d2 of the reel motor sprocket 13 is greater than the diameter d1 of the encoder sprocket 14; the ratio of the diameter d1 of the encoder sprocket 14 to the diameter d2 of the reel motor sprocket 13 is equal to the ratio of the rotating speed n1 of the encoder sprocket 14 to the rotating speed n2 of the reel motor sprocket 13, that is, d1 / d2=n1 / n2; the ratio affects the accuracy of controlling the rotating speed of the reel motor 10, and the larger the ratio, the higher the control accuracy.

[0038] The implementation principle of the intelligent pipe pulling device is as follows: in use, the borehole diameter D1 is first collected by the visual element 3 and transmitted to the controller 1 through a control circuit, at this time, the controller 1 calculates the charge quantity Q of the mixed charge per meter in the borehole according to the collected borehole diameter D1 and the density of the material in the borehole; then, the controller 1 drives the delivery pipe 2 to extend the discharge port at the end of the delivery pipe 2 into the bottom of the borehole through the power driving system, and the middle part of the delivery pipe 2 is wound on the reel 9.

[0039] When the discharge port at the end of the delivery pipe 2 extends into the bottom of the borehole, the controller 1 controls the power driving system to drive the delivery pump motor 5 to make the delivery pump 6 start working, and the mixed charge in the hopper 4 is pumped into the borehole through the delivery pipe 2. During charging, the controller 1 first processes the charge quantity per meter of the mixed charge in the current borehole and the flow data value of the flowmeter 7, and calculates the theoretical value of the pipe pulling speed of the delivery pipe 2 under the existing flow and the charge quantity per meter according to the algorithm formula V L = P v / Q; then, the controller 1 outputs a control signal to the power driving system, and the power driving system drives the reel motor 10 to rotate according to the control signal; at the same time, the controller 1 collects the rotation speed signal of the reel 9 through the control circuit and the encoder 12 connected to the reel motor 10, calculates the actual value of the actual pipe pulling speed based on the encoder signal, and obtains the speed difference value by comparing the theoretical value and the actual value, and re-sends the control signal to the power driving system according to the speed difference value to adjust the rotation speed of the reel motor 10 in real time, so as to realize that the actual pipe pulling speed V k is consistent with the theoretical pipe pulling speed V L , the pipe pulling speed is consistent with the rising speed of the liquid level in the borehole, and the filling liquid level height L of the mixed charge in the borehole is constant.

[0040] The intelligent pipe pulling device can realize real-time collection of the borehole parameters, the delivery flow parameters and the rotation speed parameters of the reel 9 through the information interaction between the visual element 3, the flowmeter 7, the encoder 12 and the controller 1, and the controller 1 can intelligently control the power driving system to drive the delivery pump motor 5 and the reel motor 10 to realize intelligent automatic pipe pulling.

[0041] In addition, the diameter d2 of the reel motor sprocket 13 is greater than the diameter d1 of the encoder sprocket 14, and the ratio between the two affects the control precision of the rotation speed of the reel motor 10, when the ratio is larger, even if the reel motor 10 rotates by a small angle, the encoder 12 can also send enough signals to the controller 1 to realize higher control precision.

[0042] According to the field operation condition, the conveying flow of the conveying pump 6 can be controlled through the controller 1, so that the intelligent matching of the suitable conveying flow and the automatic pipe pulling speed according to the size of the field borehole diameter D1 is realized. That is, under the condition of different conveying flows, the intelligent pipe pulling device can repeat the above process, and the pipe pulling speed of the mixed charge conveying pipe 2 is intelligently adjusted. By adopting the intelligent pipe pulling device, after realizing the synchronous pipe pulling, the situation that the mixed explosive is free-fall from top to bottom and collides and convolves when being loaded into the bottom of the borehole when the end face of the discharge port of the conveying pipe 2 is loaded in the borehole empty hole can be effectively eliminated, the mixed explosive will not be disordered in the borehole, and the blasting effect can be effectively improved.

[0043] The above-described embodiments are only used to specifically introduce the technical solutions of the present application, and the above-described embodiments are only used to help understand the present application, and should not be understood as a limitation of the present application. Those skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, and all changes or replacements should be covered within the protection scope of the present application.

Claims

1. An intelligent extubation device, comprising: Controller (1), conveying pipe (2), hopper (4), conveying pump motor (5), conveying pump (6), flowmeter (7), reel frame (8), reel (9), reel motor (10), the controller (1) is connected with conveying pump motor (5), reel motor (10), the conveying pipe (2) is arranged on the reel (9) and one end is communicated with the conveying pump (6), the hopper (4) and the conveying pump (6) are communicated, the conveying pump motor (5) and the conveying pump (6) are drivingly connected, the reel (9) and the reel motor (10) are arranged on the reel frame (8), the reel motor (10) and the reel (9) are drivingly connected, characterized by further comprising: visual element (3), flowmeter (7), encoder (12) are connected with the controller (1) respectively, the visual element (3) and the encoder (12) are arranged on the reel frame (8), the flowmeter (7) is arranged on the conveying pipe (2), the encoder (12) and the reel motor (10) are drivingly connected, the conveying pipe (2) is arranged on the reel (9) in single layer and uniform distribution.

2. The intelligent extubation device of claim 1, wherein The driving end of the reel motor (10) is coaxially provided with a reel motor (10) sprocket, the measuring shaft of the encoder (12) is coaxially provided with an encoder sprocket (14), and the reel motor (10) sprocket and the encoder sprocket (14) are provided with a transmission chain (11).

3. The intelligent extubation device of claim 2, wherein, The diameter of the reel motor (10) sprocket is greater than the diameter of the encoder sprocket (14).

4. The intelligent extubation device of claim 3, wherein, The visual element (3) adopts a camera.

5. The intelligent extubation device according to any one of claims 1-4, wherein, The flowmeter (7) is located at one end of the conveying pipe (2) close to the conveying pump (6).

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