Strip mine blast hole measuring device

Abstract

The utility model discloses a strip mine blast hole measuring device, comprising a reel system comprising a reel body, a rope winding shaft arranged on the reel body, an automatic rope winding motor and a control mechanism, the rope winding shaft is provided with an accommodating groove, and the rope winding shaft is connected with the output end of the automatic rope winding motor; the automatic rope winding motor is in communication connection with the control mechanism; the measuring rope is wound on the rope winding shaft; the top end of the plumb bob mechanism is connected with the measuring rope, the plumb bob mechanism comprises a sensor component in communication connection with the control mechanism, the sensor component comprises a temperature sensor, a speed sensor and a resistivity sensor, and the plumb bob mechanism can be contained in the containing groove. The device is suitable for measuring blast holes in strip mines, and can accurately measure the depth, temperature and water depth of the blast holes.

Description

Technical Field

[0001] The utility model relates to the technical field of open-pit blasting blasthole measurement, and more specifically, to an open-pit mine blasthole measurement device. Background Art

[0002] In recent years, there has been considerable research on blasthole depth measurement. For example, Zhang Bai (Development of a Deephole Measurement System Based on the Circumscribed Circle Aperture Measurement Method) described a deephole measurement system based on the circumscribed circle aperture measurement method. However, this system, designed for foundation pit surveying, has a maximum measurement depth of only 2m, making it unsuitable for use in open-pit mines. Han Liangbo (Blasting Hole Depth Measurement Device) and Li Xiaolei (A Blasting Hole Depth Measurement Device) each described a device that uses a measuring rod to measure hole depth. However, due to the limited length of the measuring rod, such devices are difficult to use in open-pit mines. Yu Zilong (A Blasting Hole Depth Measurement Device) disclosed a hole-measuring device that automatically clears the hole when a plumb bob becomes stuck, ensuring measurement accuracy. While plumb bobs are generally small and won't block the hole, they are also not heavy enough to clear the hole. Liu Yinglu (An Open-Pit Mine Intelligent Hole Depth Measurement Device and Its Use Method) disclosed an intelligent hole-measuring device that uses a motor to drive the measuring rope and a float to calibrate the water depth. The device's complex structure makes it difficult to use in the field. Limited by the size of the blasthole, the float cannot accurately measure water depth. Furthermore, the device is limited in the amount of blasthole data it can measure. Zhi Wei (Development and Application of an Intelligent High-Precision Double-Rope Bombhole Measurement Device) disclosed a "double-rope blasthole measurement device." This device has a complex structure and requires placement above the blasthole, making it inconvenient to carry. Furthermore, the blasthole itself is small, making it difficult to measure water depth using buoyancy unless the water is very deep.

[0003] Therefore, for open-pit mine blasthole measurement, a measuring device is needed that is easy to carry, convenient for on-site blasthole measurement application, and can simultaneously measure the blasthole depth and the water depth in the blasthole. Utility Model Content

[0004] An object of the present invention is to solve at least the above problems and to provide at least the advantages to be described below.

[0005] Another object of the utility model is to provide an open-pit mine blasthole measuring device, which has a compact structure and is easy to carry, is suitable for open-pit mine blasthole measurement, and can accurately measure the open-pit mine blasthole depth, temperature and water depth in the blasthole.

[0006] In order to achieve these purposes and other advantages according to the present invention, a blasthole measurement device for an open-pit mine is provided, comprising:

[0007] A reel system includes a reel body, a rope reel shaft provided on the reel body, an automatic rope reel motor, and a control mechanism, wherein the rope reel shaft is provided with a receiving groove and is connected to the output end of the automatic rope reel motor; the automatic rope reel motor is in communication with the control mechanism;

[0008] a measuring rope wound on the rope winding shaft;

[0009] A bob mechanism has its top end connected to the measuring rope. The bob mechanism includes a sensor component that is communicatively connected to the control mechanism. The sensor component includes a temperature sensor, a speed sensor, and a resistivity sensor. The bob mechanism can be received in the accommodating groove.

[0010] Preferably, the reel system further comprises:

[0011] a power supply mechanism, which is provided on the reel body, the power supply mechanism having a first rechargeable battery built in and a first charging interface connected to the first rechargeable battery externally;

[0012] An LCD display screen is provided on the reel body, and the LCD display screen is connected to the first rechargeable battery and the control mechanism.

[0013] Preferably, the measuring rope comprises an optical fiber rope, a Kevlar layer and a polyether polyurethane layer in sequence from the inside to the outside; and the sensor component is connected to the control mechanism via the optical fiber rope.

[0014] Preferably, the reel system further comprises: a Bluetooth module, which is arranged in the reel body, and the Bluetooth module is communicatively connected to the control mechanism and the remote mobile device; the plumb bob mechanism further comprises: a Bluetooth component, which is communicatively connected to the Bluetooth module, and the Bluetooth component is communicatively connected to the sensor component.

[0015] Preferably, the reel system further comprises:

[0016] A rope winding handle is rotatably arranged on the side of the reel body and is connected to the rope winding shaft;

[0017] a carrying handle provided on the upper portion of the reel body;

[0018] A first optical fiber module is disposed in the reel body, wherein a receiving end of the first optical fiber module is communicatively connected to the optical fiber rope, and a transmitting end of the first optical fiber module is communicatively connected to the control mechanism;

[0019] A length sensor is provided on the reel body and is used to record the length of the measuring rope released by the rope winding shaft.

[0020] Preferably, the plumb bob mechanism further comprises:

[0021] a second optical fiber module, a receiving end of which is communicatively connected to the sensor member and a transmitting end of which is communicatively connected to the optical fiber rope;

[0022] A power supply component is connected to the sensor component and the Bluetooth component.

[0023] Preferably, the power supply component has a built-in second rechargeable battery and an external second charging interface connected to the second rechargeable battery.

[0024] Preferably, the control mechanism includes a PLC controller and a key control area, and the key control area is communicatively connected to the PLC controller.

[0025] The utility model has at least the following beneficial effects:

[0026] First, the open-pit mine blasthole measuring device of the present invention has a compact structure and is easy to carry. It is suitable for open-pit mine blasthole measurement and can accurately measure the depth, temperature and water depth of the open-pit mine blasthole.

[0027] Second, the open-pit mine blasthole measurement device of the present invention can directly transmit blasthole measurement data to a mobile device, such as a smartphone or computer, for use in blasting design.

[0028] Third, the open-pit mine blasthole measurement device of the present invention can transmit data via optical fiber wired or Bluetooth wireless, ensuring efficient data transmission during the measurement process.

[0029] Fourth, the open-pit mine blasthole measuring device of the present invention interacts with the PLC controller through the LCD display and key control area to set parameters, start and stop measurement, etc., which is convenient for users to monitor and supervise.

[0030] Fifth, the measuring rope in the open-pit mine blasthole measuring device of the present invention is composed of a bending-resistant optical fiber rope, a Kevlar layer and a polyether polyurethane layer, and adopts a multi-layer braided structure to ensure the tensile strength of the measuring rope while ensuring its flexibility.

[0031] Other advantages, objectives and features of the present invention will be reflected in part through the following description, and in part will be understood by those skilled in the art through research and practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a schematic structural diagram of an open-pit mine blasthole measurement device in one technical solution of the utility model;

[0033] Figure 2 This is a schematic diagram of the state in which the lower part of the plumb bob mechanism enters the blasthole when the open-pit mine blasthole measurement device in another technical solution of the present utility model is used;

[0034] Figure 3 This is a schematic diagram of the internal structure of the reel body in another technical solution of the present utility model;

[0035] Figure 4 This is an axial cross-sectional view of a measuring rope in another technical solution of the present utility model;

[0036] Figure 5 This is a schematic diagram of the internal structure of the line hammer mechanism in another technical solution of the utility model;

[0037] Figure numerals: 1: reel body, 2: rope winding shaft, 3: automatic rope winding motor, 4: control mechanism, 5: measuring rope, 500: optical fiber layer, 510: Kevlar layer, 520: polyether polyurethane coating layer, 6: plumb bob mechanism, 7: power supply mechanism, 8: LCD display, 9: Bluetooth module, 10: first optical fiber module, 11: blast hole. DETAILED DESCRIPTION

[0038] The present invention will be described in further detail below in conjunction with the accompanying drawings so that those skilled in the art can implement the invention with reference to the description.

[0039] It should be understood that terms such as “having”, “including” and “comprising” used herein do not preclude the existence or addition of one or more other elements or combinations thereof.

[0040] like Figures 1 to 5 As shown, the utility model provides an open-pit mine blasthole measurement device, comprising:

[0041] The reel system includes a reel body 1, a rope winding shaft 2 provided on the reel body 1, an automatic rope winding motor 3, and a control mechanism 4. The rope winding shaft 2 is hollow and has a receiving slot. The rope winding shaft 2 is connected to the output end of the automatic rope winding motor 3. The automatic rope winding motor 3 is in communication with the control mechanism 4.

[0042] a measuring rope 5 wound on the rope winding shaft 2;

[0043] The top end of the bob liner mechanism 6 is connected to the measuring rope 5. The bob liner mechanism 6 includes a sensor component that is communicatively connected to the control mechanism 4. The sensor component includes a temperature sensor, a speed sensor, and a resistivity sensor. The bob liner mechanism 6 can be stored in the accommodating groove.

[0044] In the above technical solution, when measuring an open-pit mine blasthole, the device is moved to the open-pit mine blasthole measurement position, and the reel system is located directly above the blasthole to be measured 11. First, ensure the connection between the measuring rope 5 and the plumb bob mechanism 6, and take the plumb bob mechanism 6 out of the reel body 1. In this embodiment, a through hole is provided on the side wall of the reel body 1 (the position of the through hole in the reel body 1 is not limited, and it can be provided at other positions as long as the plumb bob mechanism 6 can pass through). The plumb bob mechanism 6 passes through the through hole provided on the side of the reel body 1, and the plumb bob mechanism 6 is placed in the blasthole to be measured 11, and then the reel body 1 is opened. The reel system is activated by a control mechanism. The automatic rope winding motor 3 is controlled by the control mechanism 4 to drive the bob 6 downward. The temperature sensor in the bob 6 measures the temperature of the environment surrounding the bob 6, providing real-time data as a reference for subsequent work on the open-pit mine. The speed sensor measures the speed change of the bob 6 in real time. When the speed sensor measurement value changes, there are several possible situations: the bob 6 touches rock, the bob 6 enters water, or there is no water in the blasthole 11 and the bob 6 contacts the bottom of the blasthole 11. At this time, the value measured by the speed sensor is displayed on the display screen of the control mechanism 4. When the speed value changes, the resistivity sensor measurement value displayed on the display screen of the control mechanism 4 is observed. If the plumb bob 6 touches the rock or falls to the bottom of the blasthole 11, the resistivity measured by the resistivity sensor does not change. If the resistivity measured by the resistivity sensor changes, it is determined that the plumb bob 6 has entered the water (the difference in resistivity between water and air is used to determine whether the plumb bob 6 has entered the water). The depth of the blasthole 11 is obtained based on the length of the measuring rope 5 released by the rope reel 2. When the speed measured by the speed sensor is zero, it is determined that the plumb bob 6 has contacted the bottom of the blasthole 11, and the measurement is recorded. The water depth in the blasthole 11 is obtained by subtracting the depth of the blasthole 11 from the length of the rope (a measuring rope with a scale can be used to conveniently record the length of the released measuring rope 5); after the measurement is completed, the plumb bob mechanism 6 is retracted by the automatic rope winding motor 3 to check the equipment status. The temperature sensor is a thermocouple or thermistor sensor, and a rigid waterproof layer can be provided on the outer surface of the plumb bob mechanism 6 (a mixture of a high-grade fatty acid mortar waterproofing agent and a coating is applied to the outer surface of the plumb bob mechanism 6). This layer not only has a waterproof effect, but also can resist vibration and impact during the descent process, and interference from dust in the blasting area. The measuring device in this technical solution has a compact structure, is easy to carry, and is simple to operate. It is suitable for open-pit mine blasthole measurement and can accurately measure the depth, temperature, and water depth of open-pit mine blastholes.

[0045] In another technical solution, the reel system further includes:

[0046] a power supply mechanism 7, which is provided on the reel body 1, the power supply mechanism 7 having a built-in first rechargeable battery and an external first charging interface connected to the first rechargeable battery;

[0047] An LCD display screen 8 is provided on the reel body 1 , and the LCD display screen 8 is connected to the first rechargeable battery and the control mechanism 4 .

[0048] In the above technical solution, if Figure 3 As shown, a power supply mechanism 7 is provided in the reel system, which has a built-in first rechargeable battery. The external power supply charges the first rechargeable battery through the first charging interface. The power supply mechanism 7 is a structural unit for the power required in the reel system: for example, the control mechanism 4, the automatic rope winding motor 3, the LCD display 8 and the Bluetooth module 9 provide power. In addition, when the measurement is completed and the plumb bob mechanism 6 is stored in the accommodating slot, the plumb bob mechanism 6 can be charged by the external power supply through the second charging interface provided on the plumb bob mechanism 6.

[0049] In another technical solution, the measuring rope 5 includes an optical fiber rope 500 , a Kevlar layer 510 and a polyether polyurethane layer 520 from the inside to the outside; the sensor component is connected to the control mechanism 4 through the optical fiber rope 500 .

[0050] In the above embodiment, if Figure 4 As shown, the measuring rope 5 is composed of a bend-resistant optical fiber rope 500, a Kevlar layer 510, and a polyether-type polyurethane layer 520. The multi-layer braided structure ensures the rope's flexibility while also ensuring its tensile strength. The bend-resistant optical fiber rope 500 prevents breakage during winding. The multi-layer braided structure embeds the optical fiber rope 500 within an inner layer, ensuring adequate protection from the outer Kevlar layer 510. The outermost layer, formed from polyether-type polyurethane, forms the polyether-type polyurethane layer 520, ensuring strength under conditions of high and low temperatures, humidity, corrosion, and rock cutting, enhancing the rope's suitability in diverse environments.

[0051] In another technical solution, the reel system further includes: a Bluetooth module 9, which is arranged in the reel body 1, and the Bluetooth module 9 is communicatively connected to the control mechanism 4 and the remote mobile device; the plumb bob mechanism 6 further includes: a Bluetooth component, which is communicatively connected to the Bluetooth module 9, and the Bluetooth component is communicatively connected to the sensor component.

[0052] In the above technical solution, a Bluetooth module 9 is provided to communicate with the Bluetooth component provided in the bobbin mechanism 6, so that the temperature sensor in the bobbin mechanism 6 measures the temperature data of the environment in which the bobbin mechanism 6 is located, the speed sensor measures the speed data of the bobbin mechanism 6 in real time, and the resistivity sensor measures the resistivity data of the environment in which the bobbin mechanism 6 is located in real time and transmits the resistivity data of the environment in which the bobbin mechanism 6 is located to the Bluetooth module 9 by wireless transmission, and then further transmits the data to the control mechanism 4 through the Bluetooth module 9, thereby realizing wireless transmission of the measurement data and facilitating control and management by the control mechanism 4; wherein, the function of the Bluetooth component is the same as the structure and function of the Bluetooth module 9, both of which realize wireless transmission of data.

[0053] In another technical solution, the reel system further includes:

[0054] A rope winding handle is rotatably arranged on the side of the reel body 1 and is connected to the rope winding shaft 2;

[0055] a carrying handle provided on the upper portion of the reel body 1;

[0056] A first optical fiber module 10 is disposed in the reel body 1 , wherein a receiving end of the first optical fiber module 10 is in communication connection with the optical fiber rope 500 , and a transmitting end of the first optical fiber module 10 is in communication connection with the control mechanism 4 ;

[0057] The length sensor is provided on the reel body 1 and is used to record the length of the measuring rope 5 released by the rope winding shaft 2 .

[0058] In the above technical solution, by setting a rope winding handle (as shown in the figure, it is a conventional handle structure connected to the rotating shaft of the rope winding shaft 2, and the rope winding shaft 2 is rotated by shaking the rope winding handle to drive the rotating shaft 2 to rotate to move the measuring rope 5 and the plumb bob mechanism 6 toward the lower part of the blast hole 11), when the power of the reel system is insufficient, the rope winding shaft 2 is manually operated to release or retract the measuring rope 5 to ensure the normal measurement; by setting a carrying handle (as shown in the figure, it is an arc-shaped structure handle with both ends arranged on opposite sides of the reel body 1), it is convenient to carry and operate the measuring device; by setting a first optical fiber module 10, the temperature sensor in the plumb bob mechanism 6 can measure the environment in which the plumb bob mechanism 6 is located. The temperature data is measured by the speed sensor in real time, the speed data of the bob 6 is measured by the speed sensor in real time, and the resistivity data of the environment in which the bob 6 is located is measured by the resistivity sensor in real time. The data is transmitted to the control mechanism 4 through wired transmission to prevent the control mechanism 4 from receiving data in the case of poor wireless network signal. By setting a length sensor (not shown in the figure), the length sensor is a piezoelectric length sensor. When the rope winding shaft 2 drives the measuring rope 5 to move downward, the measuring rope 5 contacts the length sensor, and pressure is generated on the length sensor to measure the length of the measuring rope. The length of the measuring rope 5 released by the rope winding shaft 2 can be recorded in real time, and the depth of the blast hole 11 and the water depth in the blast hole can be obtained.

[0059] In another technical solution, the plumb bob mechanism 6 further includes:

[0060] a second optical fiber module, a receiving end of which is communicatively connected to the sensor component, and a transmitting end of which is communicatively connected to the optical fiber rope 500;

[0061] A power supply component is connected to the sensor component and the Bluetooth component.

[0062] In the above embodiment, if Figure 5 The internal structure of the plumb bob mechanism 6 is shown. A second optical fiber module is provided, with its receiving end communicating with the temperature sensor, velocity sensor, and resistivity sensor, and its transmitting end communicating with the optical fiber cord 500. The optical fiber cord 500 is in communication with the receiving end of the first optical fiber module 10, and the transmitting end of the first optical fiber module 10 is in communication with the control mechanism 4, thereby achieving wired transmission of measurement data. This dual guarantee of wireless and wired transmission ensures stable transmission of measurement data signals. Both the first optical fiber module 10 and the second optical fiber module are optical fiber connectors.

[0063] In another technical solution, the power supply unit includes a built-in second rechargeable battery and an external second charging port connected to the second rechargeable battery. In this embodiment, after the measurement is completed, the first rechargeable battery in the reel system is charged via an external power source connected to the first charging port in the power supply unit, and the second rechargeable battery is charged via an external power source connected to the second charging port on the power supply unit. In addition, the charging of the second rechargeable battery can also be synchronized with the charging of the reel system. The specific charging principle and method (the same as the principle of charging the walkie-talkie and the charger terminal in combination) include: setting a wiring terminal on the reel body 1 and at the position where the wire hammer mechanism 6 is received in the reel body 1 (this position corresponds to the position of the first rechargeable battery in the reel system), and setting a wiring contact adapted to the wiring terminal at the position corresponding to the second rechargeable battery on the wire hammer mechanism 6. When the wire hammer mechanism 6 is received in the reel body 1, the first rechargeable battery in the reel system is charged by an external power supply through the first charging interface in the power supply mechanism, and synchronous charging of the wire hammer mechanism 6 is realized at the same time. In order to facilitate the observation of whether the charging of the wire hammer mechanism 6 is completed, a display light can be set on the reel body 1. When the display light changes from red to green, it indicates that the wire hammer mechanism 6 is fully charged.

[0064] In another technical solution, the control mechanism 4 includes a PLC controller and a key control area, which is communicatively connected to the PLC controller. In this technical solution, the LCD display 8 and the key control area enable user interaction with the PLC controller to set parameters, start and stop measurements, etc., facilitating user operation.

[0065] The number of devices and processing scales described herein are intended to simplify the description of the present invention. Applications, modifications, and variations of the present invention's open-pit mine blasthole measurement device will be readily apparent to those skilled in the art.

[0066] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the description and implementation methods. They can be fully applied to various fields suitable for the present invention. For those familiar with this field, additional modifications can be easily implemented. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and illustrations shown and described herein.

Claims

1. Open-pit mine blasthole measurement device, characterized in that: include: A reel system includes a reel body, a rope reel shaft provided on the reel body, an automatic rope reel motor, and a control mechanism, wherein the rope reel shaft is provided with a receiving groove and is connected to the output end of the automatic rope reel motor; the automatic rope reel motor is in communication with the control mechanism; a measuring rope wound on the rope winding shaft; A bob mechanism has its top end connected to the measuring rope. The bob mechanism includes a sensor component that is communicatively connected to the control mechanism. The sensor component includes a temperature sensor, a speed sensor, and a resistivity sensor. The bob mechanism can be received in the accommodating groove.

2. The open-pit mine blasthole measurement device according to claim 1, characterized in that: The reel system further comprises: a power supply mechanism, which is provided on the reel body, the power supply mechanism having a first rechargeable battery built in and a first charging interface connected to the first rechargeable battery externally; An LCD display screen is provided on the reel body, and the LCD display screen is connected to the first rechargeable battery and the control mechanism.

3. The open-pit mine blasthole measurement device according to claim 1, characterized in that: The measuring rope comprises an optical fiber rope, a Kevlar layer and a polyether polyurethane layer in sequence from the inside to the outside; the sensor component is connected to the control mechanism through the optical fiber rope.

4. The open-pit mine blasthole measurement device according to claim 1, characterized in that: The reel system further includes: a Bluetooth module disposed in the reel body, the Bluetooth module being communicatively connected to the control mechanism and the remote mobile device; the plumb bob mechanism further includes: a Bluetooth component being communicatively connected to the Bluetooth module, the Bluetooth component being communicatively connected to the sensor component.

5. The open-pit mine blasthole measurement device according to claim 1, characterized in that: The reel system further comprises: A rope winding handle is rotatably arranged on the side of the reel body and is connected to the rope winding shaft; a carrying handle provided on the upper portion of the reel body; A first optical fiber module is disposed in the reel body, wherein a receiving end of the first optical fiber module is communicatively connected to the optical fiber rope, and a transmitting end of the first optical fiber module is communicatively connected to the control mechanism; A length sensor is provided on the reel body and is used to record the length of the measuring rope released by the rope winding shaft.

6. The open-pit mine blasthole measurement device according to claim 4, characterized in that: The plumb bob mechanism further comprises: a second optical fiber module, a receiving end of which is communicatively connected to the sensor member and a transmitting end of which is communicatively connected to the optical fiber rope; A power supply component is connected to the sensor component and the Bluetooth component.

7. The open-pit mine blasthole measurement device according to claim 6, characterized in that: The power supply component has a built-in second rechargeable battery and an external second charging interface connected to the second rechargeable battery.

8. The open-pit mine blasthole measurement device according to claim 1, characterized in that: The control mechanism includes a PLC controller and a key control area, and the key control area is communicatively connected with the PLC controller.

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