Surface drilling rig and control system and method therefor

Abstract

The invention discloses an open pit rock drilling equipment, a control system and method thereof, and belongs to the technical field of engineering machinery. The rock drilling equipment shock rod control system comprises: a drill rod state sampling device which samples the state of the drill rod according to the acquired electrical signal; a drill hole state sampling device which samples the state of the drill hole according to the acquired electrical signal; a shock rod device which loosens the connecting sleeve between the drill rod and the drill rod and the connecting sleeve between the drill bit of the rock drill and the drill rod according to the input electrical signal; and a processing device which sends a control signal to the shock rod device according to the drill rod state signal sampled by the drill rod state sampling device and the drill hole state signal sampled by the drill hole state sampling device to make the shock rod device loosen the connecting sleeve between the drill rod and the drill rod and the connecting sleeve between the drill bit of the rock drill and the drill rod. The shock rod time is reasonably controlled, the success rate of the shock rod is effectively improved, and the shock rod time is prevented from being too long and the drill rod from being dropped, thereby improving the safety of the rod dismounting and shock rod operation.

Description

Technical Field

[0001] This invention relates to the field of engineering machinery technology, and more specifically, to open-pit rock drilling equipment and its control system and method. Background Technology

[0002] In actual drilling operations, a series of specific operations are required, including hole drilling, rock drilling, rod splicing, vibratory rod splicing, rod dismantling, and hole cleaning. Current traditional methods still rely on manual labor, which is inefficient and uneconomical. The vibratory rod is a crucial component in the operation of rock drilling equipment, preceding the rod splicing and dismantling operations.

[0003] In related technologies, such as Chinese patent CN109488231A, an automatic rod-joining mechanism for a rock drilling rig and a rock drilling rig are provided. This automatic rod-joining mechanism includes: a rod-joining assembly comprising a front-end clamp and a drill bit tail; the front-end clamp is connected to the front support of the rock drill and works with the drill bit tail to join the rod; a drill rod magazine, connected to the front support of the rock drill and located on the side of the rock drill's feed beam, for storing drill rods; and a swing rod-feeding mechanism, connected to the front support of the rock drill and located between the front-end clamp and the drill bit tail, swinging back and forth between the drill rod magazine and the rod-joining assembly to deliver the drill rod. This solution can address the low efficiency of manual rod joining, but it does not improve the rod dismantling process.

[0004] As can be seen from the above, the relevant technologies do not provide any technical insights into how to improve the success rate of vibration rods while preventing rod drops. Summary of the Invention

[0005] 1. Technical problems to be solved

[0006] To address the problem in existing technologies of how to improve the success rate of vibratory drilling while preventing drilling rod falls, this invention provides open-pit rock drilling equipment, its control system, and method. It can effectively improve the success rate of vibratory drilling and prevent drilling rod falls, thereby enhancing the safety of drilling rod dismantling operations.

[0007] 2. Technical Solution

[0008] The objective of this invention is achieved through the following technical solutions.

[0009] The summary section of this application is intended to provide a brief overview of the concepts, which will be described in detail in the detailed description section below. This summary section is not intended to identify key or essential features of the claimed technical solutions, nor is it intended to limit the scope of the claimed technical solutions.

[0010] Some embodiments of this application propose an open-pit rock drilling device and its control system and method to solve the technical problems mentioned in the background section above.

[0011] As a first aspect of this application, some embodiments of this application provide a vibrating rod control system for an open-pit rock drilling equipment, used for the vibrating rod process of the open-pit rock drilling equipment. The open-pit rock drilling equipment includes: a rock drill and a drill rod, the rock drill being detachably connected to the drill rod. The vibrating rod control system further includes: a drill rod status sampling device for sampling the status of the drill rod based on acquired electrical signals; a borehole status sampling device for sampling the status of the borehole based on acquired electrical signals; a vibrating rod device for loosening the connection between the drill rods and the connecting sleeve between the drill rods, and the connection between the drill maker's shank and the drill rod, based on input electrical signals; and a processing device for sending control signals to the vibrating rod device based on the drill rod status signals sampled by the drill rod status sampling device and the borehole status signals sampled by the borehole status sampling device, so that the vibrating rod device loosens the connection between the drill rods and the connecting sleeve between the drill rods, and the connection between the drill maker's shank and the drill rod.

[0012] Furthermore, the status of the drill pipe includes average rotational pressure, average feed pressure, average impact pressure, and the number of drill pipes; wherein, the processing device sends a control signal to the vibrating rod device based on the average rotational pressure, average feed pressure, average impact pressure, and the number of drill pipes.

[0013] Furthermore, the drill pipe condition sampling device includes: a rotational pressure sensor for collecting the average rotational pressure of the drill pipe; a feed pressure sensor for collecting the average feed pressure of the drill pipe; an impact pressure sensor for collecting the average impact pressure of the drill pipe; and a drill pipe quantity sensor for collecting the quantity of drill pipes.

[0014] Furthermore, the drilling status includes the hole depth, which is acquired by an encoder;

[0015] The processing device sends a control signal to the vibrating rod device based on the borehole depth signal collected by the encoder.

[0016] Furthermore, the vibrating rod device includes: an impact solenoid valve and an air blowing solenoid valve. The impact solenoid valve is used to cause the drill rod to perform an impact action, and the air blowing solenoid valve is used to cause the drill rod to perform an air blowing action.

[0017] The processing device sends control signals to the impact solenoid valve and the blowing solenoid valve based on the drill rod status signal sampled by the drill rod status sampling device and the borehole status signal sampled by the borehole status sampling device, so that the drill rod performs impact action and blowing action.

[0018] Furthermore, the vibratory rod control system for open-pit rock drilling equipment also includes:

[0019] Interactive devices are used by users to achieve human-computer interaction.

[0020] The processing device sends control signals to the vibrating rod device based on the control signals sent by the interactive device.

[0021] As a second aspect of this application, some embodiments of this application provide an open-pit rock drilling device, including the above-described open-pit rock drilling device vibratory rod control system.

[0022] As a third aspect of this application, some embodiments of this application provide a method for controlling the vibrating rod of an open-pit rock drilling equipment. The open-pit rock drilling equipment includes: a rock drill and a drill rod, the rock drill being detachably connected to the drill rod; a drill rod state sampling device for sampling the state of the drill rod based on acquired electrical signals; a borehole state sampling device for sampling the state of the borehole based on acquired electrical signals; a vibrating rod device for loosening the drill rod and the top hammer based on an input electrical signal; wherein the vibrating rod device includes an impact solenoid valve and a blowing solenoid valve; an interactive device for user operation to achieve human-machine interaction; and a processing device for... The drill rod status signal sampled by the drill rod status sampling device and the borehole status signal sampled by the borehole status sampling device send control signals to the vibrating rod device to loosen the connection between the drill rods and the connection between the drill bit shank and the drill rod. The control method includes: in response to the electrical signals sent by the drill rod status sampling device and the borehole status sampling device, obtaining the average rotational pressure, average feed pressure, average impact pressure, number of drill rods, and borehole depth of the drill rod; calculating the vibration time T; and sending control signals to the impact solenoid valve and the air blowing solenoid valve to make the drill rod perform impact and air blowing actions for a continuous vibration time T.

[0023] Furthermore, the method for calculating the vibration time T is as follows:

[0024] T = T min +(T max -T min )×(k r +k F +k I +k H +k N );

[0025] Where, k r k is the coefficient of rotational pressure. F To determine the coefficient of pressure, k I k is the coefficient of impact pressure. H k is a coefficient for hole depth. N This is a coefficient representing the number of drill pipes.

[0026] Furthermore, the control method also includes: the processing device sending control signals to the impact solenoid valve and the air blowing solenoid valve according to the control signals sent by the interactive device, so that the drill pipe performs impact action and air blowing action for an arbitrary rod vibration time.

[0027] 3. Beneficial effects

[0028] Compared with the prior art, the advantages of the present invention are: the open-pit rock drilling equipment and its control system and method of the present invention can effectively improve the success rate of vibratory rod operation and prevent rod falling, thereby improving the safety of rod dismantling and vibratory rod operation. Attached Figure Description

[0029] The accompanying drawings, which form part of this application, are used to provide a further understanding of the application and to make other features, objects, and advantages of the application more apparent. The illustrative embodiments and descriptions of this application are used to explain the application and do not constitute an undue limitation of the application.

[0030] Furthermore, throughout the accompanying drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the elements are not necessarily drawn to scale.

[0031] In the attached diagram:

[0032] Figure 1 This is a schematic diagram of the control system structure of an open-pit rock drilling equipment according to one embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the control method steps for open-pit rock drilling equipment in one embodiment of the present invention.

[0034] Explanation of the labels in the diagram:

[0035] 100. Drill pipe condition sampling device;

[0036] 110. Rotary pressure sensor;

[0037] 120. Propulsion pressure sensor;

[0038] 130. Impact pressure sensor;

[0039] 140. Drill pipe quantity sensor;

[0040] 200. Drilling status sampling device;

[0041] 210. Encoder;

[0042] 300. Processing device;

[0043] 400. Vibration rod device;

[0044] 410. Impact solenoid valve;

[0045] 420. Air blowing solenoid valve;

[0046] 500. Interactive devices. Detailed Implementation

[0047] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0048] Embodiments of this disclosure will now be described in more detail with reference to the accompanying drawings. While some embodiments of this disclosure are shown in the drawings, it should be understood that this disclosure can be implemented in various forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of this disclosure. It should be understood that the accompanying drawings and embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of protection of this disclosure.

[0049] It should also be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings. Unless otherwise specified, the embodiments and features described in this disclosure can be combined with each other.

[0050] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are used only to distinguish different devices, modules or units, and are not used to limit the order of functions performed by these devices, modules or units or their interdependencies.

[0051] It should be noted that the terms "a" and "a plurality of" used in this disclosure are illustrative rather than restrictive, and those skilled in the art should understand that, unless otherwise expressly indicated in the context, they should be understood as "one or more".

[0052] The names of messages or information exchanged between multiple devices in the embodiments of this disclosure are for illustrative purposes only and are not intended to limit the scope of such messages or information.

[0053] This disclosure will now be described in detail with reference to the accompanying drawings and embodiments.

[0054] like Figures 1 to 2 As shown, an embodiment of the open-pit rock drilling equipment vibration rod control system of this application includes a drill rod status sampling device, a borehole status sampling device, a vibration rod device, a processing device, and an interaction device.

[0055] The system includes: a drill rod status sampling device for sampling the status of the drill rod based on acquired electrical signals; a borehole status sampling device for sampling the status of the borehole based on acquired electrical signals; a vibrating rod device for loosening the connection between drill rods and the connection between the drill bit and the drill rod based on input electrical signals; a processing device for sending control signals to the vibrating rod device based on the drill rod status signals sampled by the drill rod status sampling device and the borehole status signals sampled by the borehole status sampling device, so that the vibrating rod device loosens the connection between drill rods and the connection between the drill bit and the drill rod; and an interactive device for user operation to achieve human-machine interaction. The processing device sends control signals to the vibrating rod device based on the control signals sent by the interactive device.

[0056] In one specific embodiment, the state of the drill pipe includes average rotational pressure, average feed pressure, average impact pressure, and the number of drill pipes; the processing device sends a control signal to the vibrating rod device based on the average rotational pressure, average feed pressure, average impact pressure, and the number of drill pipes.

[0057] In one specific embodiment, the drill pipe status sampling device includes a rotational pressure sensor, a feed pressure sensor, an impact pressure sensor, and a drill pipe quantity sensor.

[0058] Among them, the rotational pressure sensor is used to collect the average rotational pressure of the drill pipe; the propulsion pressure sensor is used to collect the average propulsion pressure of the drill pipe; the impact pressure sensor is used to collect the average impact pressure of the drill pipe; and the drill pipe quantity sensor is used to collect the quantity of drill pipes.

[0059] Specifically, the drilling status includes the hole depth, which is acquired by an encoder; the processing device sends a control signal to the vibrating rod device based on the hole depth signal acquired by the encoder.

[0060] In one specific embodiment, the vibrating rod device includes an impact solenoid valve and an air blowing solenoid valve. The impact solenoid valve is used to cause the drill rod to perform an impact action, and the air blowing solenoid valve is used to cause the drill rod to perform an air blowing action. The processing device sends control signals to the impact solenoid valve and the air blowing solenoid valve to cause the drill rod to perform the impact action and the air blowing action based on the drill rod status signal sampled by the drill rod status sampling device and the borehole status signal sampled by the borehole status sampling device.

[0061] The vibratory rod is a crucial component in rock drilling operations, preceding the rod splicing and disassembly process. When a drill rod is completed, the vibratory rod is used to loosen the connection between the drill bit and the drill rod before the rod splicing operation can proceed. After drilling a hole, all connecting sleeves between drill rods and the connection between the drill bit and the drill rod must be loosened before the rod splicing operation can be performed.

[0062] In one specific embodiment, the human-computer interaction device primarily provides a user interface to facilitate data settings and also provides feedback to the user on various data received by the processing device. As a specific solution, the human-computer interaction device can employ a touchscreen display with a processing chip and memory. The touchscreen can be used to display data and allow users to input data via touch. Users can achieve human-computer interaction by operating commands on the touchscreen. Using a touchscreen as the carrier of the interaction module improves the intelligence of the human-computer interaction and reduces the difficulty of operation. The human-computer interaction device is installed in an operating room that is visible and operable by the operator.

[0063] This application also provides an open-pit rock drilling device, including a top hammer, a drill rod, a drill rod status sampling device, a borehole status sampling device, a vibrating rod device, an interactive device, and a processing device.

[0064] The system includes a rock drill detachably connected to the drill rod; a drill rod status sampling device for sampling the status of the drill rod based on acquired electrical signals; a borehole status sampling device for sampling the status of the borehole based on acquired electrical signals; a vibrating rod device for loosening the connection between the drill rods and the connection between the rock drill's shank and the drill rod based on input electrical signals; an interactive device for user operation to achieve human-machine interaction; and a processing device for sending control signals to the vibrating rod device based on the drill rod status signals sampled by the drill rod status sampling device and the borehole status signals sampled by the borehole status sampling device, so that the vibrating rod device loosens the connection between the drill rods and the connection between the rock drill's shank and the drill rod.

[0065] Specifically, the vibrating rod device includes an impact solenoid valve and an air blowing solenoid valve. These valves initiate the vibration operation by impacting and blowing air to loosen the drill rod. Vibration is required in two places during the entire operation: firstly, when the current drill rod is completed, the vibrating rod is needed to loosen the connection between the rock drill's shank and the drill rod before adding rods; secondly, after drilling a hole, all connecting sleeves between drill rods and the connection between the rock drill's shank and the drill rod need to be loosened before dismantling the rods.

[0066] Based on the above-mentioned technical solution of rotary blasting hole drilling rig, this application also provides a method for controlling the vibratory rod of open-pit rock drilling equipment.

[0067] like Figures 1 to 2 As shown, the control method specifically includes:

[0068] In response to the electrical signals sent by the drill pipe status sampling device and the borehole status sampling device, the average rotational pressure, average feed pressure, average impact pressure, number of drill pipes, and borehole depth of the drill pipe are obtained.

[0069] Calculate the vibration time T;

[0070] Send control signals to the impact solenoid valve and the blow solenoid valve to make the drill pipe perform impact and blow actions for a duration of T;

[0071] The processing device sends control signals to the impact solenoid valve and the air blowing solenoid valve according to the control signals sent by the interactive device, so that the drill pipe can perform impact and air blowing actions for any duration.

[0072] Specifically, the vibration time is related to the rotational pressure, propulsion pressure, impact pressure, hole depth, and number of drill rods. These parameters are sampled at the start of drilling. When the borehole is completed, the average rotational pressure value P is calculated. R The average propulsion pressure value P F The average impact pressure value P I The hole depth H and the number of drill pipes N are given. Then, through a large amount of mining test data, the influence factors of each parameter on the vibrating rod time are obtained, that is, the weighting coefficients are obtained: the coefficient of rotational pressure, the coefficient of pushing pressure, the coefficient of impact pressure, the coefficient of hole depth, and the coefficient of the number of drill pipes. Therefore, the method for calculating the vibrating rod time T is as follows:

[0073] T = T min +(T max -T min )×(k R +k F +k I +k H +k N );

[0074] Where, k R k is the coefficient of rotational pressure. F To determine the coefficient of pressure, k I k is the coefficient of impact pressure. H k is a coefficient for hole depth. N This is a coefficient representing the number of drill pipes.

[0075] The vibratory rod is a crucial component in rock drilling operations, preceding the rod splicing and disassembly process. Vibration involves loosening the drill rod through impact and air blowing. There are two points requiring vibration during the entire operation: first, when the current drill rod is completed, the vibratory rod is used to directly loosen the drill bit's shank from the drill rod before adding the rod; second, after drilling a hole, all connecting sleeves between drill rods and the connection between the shank and the drill rod must be loosened before disassembling the rod.

[0076] Under normal circumstances, if operators are very familiar with the rock formations of the mine or believe that the rock formations are not too complex, they will set a fixed vibration time on the display screen based on experience. However, this lacks stability and often leads to many abnormal situations. If the vibration time is too long, the drill rod may fall off; if the vibration time is too short, it may not be loosened enough to disassemble, requiring repeated vibration, which greatly affects the efficiency of the operation. This application calculates the influence factors of rotational pressure, propulsion pressure, impact pressure, hole depth, and number of drill rods, and tests the influence factors of each value on the vibration time. It can calculate different vibration times according to different rock types and working conditions, thus avoiding the problems of drill rod falling off due to excessive vibration time and the problems of drill rod not being loosened enough to disassemble due to insufficient vibration time, requiring repeated vibration. This improves the success rate of vibration, prevents drill rod falling off, and enhances the safety of rock drilling.

[0077] The invention and its embodiments have been described above illustratively. This description is not restrictive, and the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. The accompanying drawings are only one embodiment of the invention, and the actual structure is not limited thereto. No reference numerals in the claims should limit the scope of the claims. Therefore, if a person skilled in the art is inspired by this description and designs a similar structure and embodiment without departing from the spirit of the invention, such design should fall within the scope of protection of this patent. Furthermore, the word "comprising" does not exclude other elements or steps, and the word "a" preceding an element does not exclude the inclusion of "a plurality" of that element. Multiple elements stated in the product claims may also be implemented by a single element through software or hardware. The terms "first," "second," etc., are used to indicate names and do not indicate any specific order.

Claims

1. A vibratory rod control system for open-pit rock drilling equipment, used in the vibratory rod process of open-pit rock drilling equipment, wherein, The open-pit rock drilling equipment includes: a rock drill and a drill rod, wherein the rock drill is detachably connected to the drill rod, characterized in that: The vibratory rod control system for the open-pit rock drilling equipment also includes: A drill pipe state sampling device is used to sample the state of the drill pipe based on the acquired electrical signal; A borehole status sampling device is used to sample the status of the borehole based on the acquired electrical signal; A vibrating rod device is used to loosen the drill rod from the rock drill based on an input electrical signal; The processing device is used to send a control signal to the vibrating rod device based on the drill rod status signal sampled by the drill rod status sampling device and the borehole status signal sampled by the borehole status sampling device, so that the vibrating rod device loosens the drill rod from the rock drill.

2. The open-pit rock drilling equipment vibratory rod control system according to claim 1, characterized in that: The state of the drill pipe includes average rotational pressure, average feed pressure, average impact pressure, and the number of drill pipes. The processing device sends a control signal to the vibrating rod device based on the average rotational pressure, average propulsion pressure, average impact pressure, and number of drill rods.

3. The open-pit rock drilling equipment vibratory rod control system according to claim 1, characterized in that: The drill pipe condition sampling device includes: A rotary pressure sensor is used to collect the average rotary pressure of the drill pipe; The feed pressure sensor is used to collect the average feed pressure of the drill pipe; Impact pressure sensor is used to collect the average impact pressure of the drill pipe; Drill rod quantity sensor, used to collect the number of drill rods.

4. The open-pit rock drilling equipment vibratory rod control system according to claim 1, characterized in that: The state of the borehole includes the borehole depth, and the borehole depth signal is acquired by an encoder; The processing device sends a control signal to the vibrating rod device based on the borehole depth signal collected by the encoder.

5. The open-pit rock drilling equipment vibratory rod control system according to claim 1, characterized in that: The vibrating rod device includes: an impact solenoid valve and an air blowing solenoid valve. The impact solenoid valve is used to cause the drill rod to perform an impact action, and the air blowing solenoid valve is used to cause the drill rod to perform an air blowing action. The processing device sends control signals to the impact solenoid valve and the blowing solenoid valve based on the drill rod status signal sampled by the drill rod status sampling device and the borehole status signal sampled by the borehole status sampling device, so that the drill rod performs impact action and blowing action.

6. The open-pit rock drilling equipment vibratory rod control system according to claim 1, characterized in that: The vibratory rod control system for the open-pit rock drilling equipment also includes: Interactive devices are used by users to achieve human-computer interaction. The processing device sends a control signal to the vibrating rod device based on the control signal sent by the interactive device.

7. An open-pit rock drilling device, comprising an open-pit rock drilling device vibration control system as described in any one of claims 1 to 6.

8. A method for controlling the vibratory rod of an open-pit rock drilling equipment, wherein, The open-pit rock drilling equipment includes: A rock drill and a drill rod, wherein the rock drill is detachably connected to the drill rod; A drill pipe state sampling device is used to sample the state of the drill pipe based on the acquired electrical signal; A borehole status sampling device is used to sample the status of the borehole based on the acquired electrical signal; A vibrating rod device is used to loosen the drill rod from the rock drill based on an input electrical signal; The vibrating rod device includes an impact solenoid valve and a blowing solenoid valve; Interactive devices are used by users to achieve human-computer interaction. The processing device is used to send a control signal to the vibrating rod device based on the drill rod status signal sampled by the drill rod status sampling device and the borehole status signal sampled by the borehole status sampling device, so that the vibrating rod device loosens the drill rod and the top hammer. The control method includes: In response to the electrical signals sent by the drill rod status sampling device and the borehole status sampling device, the average rotational pressure, average feed pressure, average impact pressure, number of drill rods, and borehole depth of the drill rod are obtained. Calculate the vibration time T; Control signals are sent to the impact solenoid valve and the air blowing solenoid valve to cause the drill pipe to perform impact and air blowing actions for the duration of the vibration time T.

9. The method for controlling the vibratory rod of open-pit rock drilling equipment according to claim 8, characterized in that: The method for calculating the vibrating rod time T is as follows: T=T min +(T max -T min )×(k R +k F +k I +k H +k N ); Where, k R k is the coefficient of rotational pressure. F To determine the coefficient of pressure, k I k is the coefficient of impact pressure. H k is a coefficient for hole depth. N This is a coefficient representing the number of drill pipes.

10. The method for controlling the vibratory rod of open-pit rock drilling equipment according to claim 8, characterized in that: The control method further includes: the processing device sending control signals to the impact solenoid valve and the air blowing solenoid valve according to the control signals sent by the interaction device, so that the drill rod performs impact action and air blowing action for an arbitrary rod vibration time.

Images