Movable GNSS (Global Navigation Satellite System) point fixing device for slope monitoring
By designing a movable GNSS point fixing device for open-pit mine slope monitoring, the problem of equipment performance degradation in complex slope environments of GNSS mobile monitoring stations is solved, and higher monitoring data accuracy and stability are achieved.
Patent Information
- Application Number
- CN202411960736.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-05-06
AI Technical Summary
In open-pit mine slope monitoring, GNSS mobile monitoring stations are susceptible to natural and man-made factors, resulting in degradation or damage to equipment performance, which in turn affects the accuracy and reliability of monitoring data.
A movable GNSS point fixing device is designed, including a base, a ball screw, a drilling power head and auger rod assembly, through which the components can be fixed on the slope, and the rotation speed and feed depth of the auger rod are controlled by the control device to ensure the stability of the fixing device.
This device not only solves the shortcomings of the traditional fixing method, but also has the advantages of compact structure, simple operation and strong adaptability. It can be flexibly adjusted according to the specific conditions of the slope and monitoring needs, improving the accuracy and long-term stability of the monitoring data.
Smart Images
Figure CN119934350A_ABST
Abstract
Description
Technical Field
[0001] The present invention belongs to the technical field of open-pit mine slope geological monitoring, and in particular relates to a movable GNSS point fixing device for slope monitoring. Background Art
[0002] In the field of open-pit mine safety, slope stability monitoring is an important means to ensure the production of open-pit mines, the safety of life and property of personnel, and the prevention of geological disasters on slopes. With the advancement of science and technology, global navigation satellite system (GNSS) mobile monitoring stations have been widely used in open-pit mine slope monitoring due to their high precision, all-weather, automation, mobility, flexibility, and low cost. GNSS mobile monitoring stations can collect key data such as slope displacement and deformation in real time, providing engineers with accurate basis for slope stability assessment.
[0003] However, in practical applications, GNSS monitoring stations face many challenges. Especially in complex and changeable slope environments, monitoring stations are often affected by natural factors such as strong winds, heavy rains, lightning, and extreme temperature changes, which can cause equipment performance degradation or even damage. In addition, vibrations and impacts generated by human activities such as blasting construction and heavy vehicle traffic may also cause the monitoring station to shift or tilt, thereby affecting the accuracy and reliability of monitoring data.
[0004] At present, GNSS mobile monitoring stations are the most widely used monitoring method in major open-pit mines. According to surveys of various open-pit mines, in the actual production process, GNSS mobile monitoring stations will produce data interference due to external factors, which has a great impact on the data of open-pit mine slope monitoring. In order to solve these problems, the traditional approach is to fix the monitoring station by adding counterweights. However, these methods often have disadvantages such as difficult construction, high cost, and poor flexibility, and are difficult to adapt to the slope monitoring needs of different terrain and geological conditions. Summary of the invention
[0005] In view of the shortcomings of the prior art, an object of the present invention is to provide a movable GNSS point fixing device for slope monitoring.
[0006] The technical solution adopted by the invention is: a movable GNSS point fixing device for slope monitoring, the technical points of which are: The base is fixedly connected to the housing of the GNSS mobile monitoring point; A ball screw is rotatably connected in the base, a ball nut is screwed on the ball screw, and two ball screws form a group; The drilling power head is arranged between the two ball screws and is connected to the ball nuts on the two ball screws through nuts and power head connecting rods; a controller is arranged inside the drilling power head to control the upward and downward movement of the auger rod assembly and provide downward power for the auger rod; The auger rod assembly is mainly composed of a mandrel tube, a main spiral blade and a rock drill bit. The mandrel tube and the main spiral blade are connected below the drilling power head, and the rock drill bit is arranged on the spiral blade and the head. The auger rod assembly is controlled by the internal controller of the drilling power head, so that the main spiral blade performs spiral drilling vertically downward along a preset angle until the predetermined soil depth is reached. The auxiliary support structure is installed at the lower end of the housing of the GNSS mobile monitoring point, and includes a retractable bracket and an adjustable support foot connected to the bottom of the retractable bracket. The retractable bracket is designed to be multi-level adjustable, and the length and angle are adjusted according to the slope and height of different slopes to provide additional lateral and vertical support for the mobile monitoring point. The adjustable support foot is installed at the bottom of the bracket to ensure stable contact between the support structure and the ground. The control device is divided into three parts, namely, the ball screw control and power device integrated in the base and connected to the ball screw transmission, the power head controller integrated in the power head and the main controller integrated in the housing of the GNSS mobile monitoring point; the control device is used to control the rotation speed and feed depth of the spiral drill rod and the start and stop of the locking mechanism.
[0007] In the above solution, the retractable bracket is designed to be adjustable in multiple stages, and the length and angle are adjusted according to the gradient and height of different slopes.
[0008] In the above solution, the surface of the spiral drill rod is covered with a wear-resistant coating.
[0009] In the above solution, the retractable bracket of the auxiliary support structure is made of aluminum alloy material; and the adjustable foot pad is made of rubber and polyurethane elastic material.
[0010] A slope monitoring method is implemented by using a movable GNSS point fixing device for slope monitoring. The technical key points are as follows: installing a GNSS monitoring station in a GNSS mobile monitoring point housing; fixing the fixing device at a predetermined position on the slope so that the auger rod assembly is directly opposite to the drilling position; starting the auger rod assembly through a control device; starting the GNSS monitoring station for real-time data monitoring, and transmitting the monitoring data to a remote monitoring center or a data processing terminal through remote data transmission for analysis and processing. The beneficial effects of the present invention are as follows: the movable GNSS point fixing device for slope monitoring is rotatably connected to a ball screw in a base located on the housing of the GNSS mobile monitoring point, and a ball nut is screwed on the ball screw; a drilling power head is arranged between the two ball screws, and is respectively connected to the nuts located on the two ball screws through nuts and power head connecting rods; the spiral drill rod assembly is mainly composed of a mandrel tube, a main spiral blade and a rock drill bit; the mandrel tube and the main spiral blade are connected under the drilling power head. The fixing device of the present invention not only solves the problems existing in the traditional fixing method, but also has the advantages of compact structure, easy operation, strong adaptability, etc. It can be flexibly adjusted according to the specific conditions of the slope and monitoring requirements, and provides a new solution for slope stability monitoring. At the same time, the promotion and application of the device will also help to improve the automation and intelligence levels of slope monitoring, and provide more reliable technical support for the prevention of geological disasters on open-pit mine slopes. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0012] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present invention; Figure 2 A schematic diagram of the excavation working state of an embodiment of the present invention; Figure 3 Schematic diagram of a drilling device according to an embodiment of the present invention.
[0013] The serial numbers in the figure are explained as follows: 1GNSS host equipment, 2GNSS antenna connection equipment, 3GNSS antenna receiver, 4GNSS mobile monitoring point housing, 5GNSS host equipment sealing protection support partition, 6 solar power supply panel, 7 ball screw, 8 first ball nut, 9 nut and power head connecting rod, 10 drilling power head, 11 main spiral blade, 12 core shaft tube, 13 rock drill bit, 14 adjustable support rod, 15 adjustable support foot, 16 ball screw control and power device, 17 overall control device. DETAILED DESCRIPTION
[0014] To make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the following is a brief description of the present invention in conjunction with the attached Figure 1-Figure 3 The present invention is further described in detail with reference to the accompanying drawings and specific embodiments.
[0015] The movable GNSS point fixing device for slope monitoring used in this embodiment includes: a GNSS mobile monitoring point housing 4, the lower end of one side of the GNSS mobile monitoring point housing 4 is connected to the outside, and the rest of the parts are sealed. The GNSS host device 1 is installed in the GNSS mobile monitoring point housing 4, and the outer side thereof is provided with a device sealing protection support partition 5 for isolating the GNSS host device 1 from the outside. Two ball screws 7 are respectively arranged on the left and right sides of the GNSS host device 1. The two ball screws 7 located on one side of the GNSS host device 1 are connected to the top of the part of the GNSS mobile monitoring point housing 4 connected to the outside, and the first ball screw is connected to the first ball screw. The ball screw control and power device 16 drives the first ball screw to rotate, so that the first ball nut can move up and down along the first ball screw. The second ball screw is connected to the second ball screw. The second ball nut and another ball screw control and power device are connected to the second ball screw, and the other ball screw control and power device drives the second ball nut to move up and down along the second ball screw. The first ball nut and the second ball nut are fixedly connected to the two sides of the drilling power head 10 through nuts and the power head connecting rod 9 respectively. The lower end of the drilling power head 10 is connected to the spiral drill rod assembly, which includes a core shaft tube 12 and a main spiral blade 11. A rock drill bit 13 is arranged at the head connected to the core shaft tube 12. The spiral drill rod and the rock drill bit in this embodiment have a wear-resistant coating to increase their drilling efficiency and durability. Similarly, in this embodiment, a third ball screw and a fourth ball screw are provided on the other side of the GNSS host device 1. The third ball screw and the fourth ball screw are connected to the side of the outer wall of the GNSS mobile monitoring point housing 4 where the antenna position is reserved. The third ball nut and the third ball screw control and power device are connected to the third ball screw. The third ball screw control and power device drives the third ball nut to move up and down along the third ball screw. The fourth ball screw is connected to the fourth ball nut and the fourth ball screw control and power device, and the fourth ball nut is moved up and down along the fourth ball screw under the drive of the fourth ball screw control and power device. The third ball nut and the fourth ball nut are connected to the two sides of another drilling power head 10 through another nut and a power head connecting rod 9 respectively. Another spiral drill rod assembly is connected below the other drilling power head 10. The bottom of the GNSS mobile monitoring point housing 4 of this embodiment is respectively connected to an adjustable support rod 14, and an adjustable support foot 15 is connected below the adjustable support rod 14, and the adjustable support foot 15 is supported on the ground. The adjustable support rod 14 is made of lightweight and high-strength aluminum alloy material to reduce the overall weight and increase the support strength (commercially available); the adjustable support foot 15 is made of rubber and polyurethane elastic material (commercially available) to increase the friction and shock absorption effect with the ground, and has anti-slip and buffering functions, which can ensure the stable contact between the support structure and the ground and adapt to different geological conditions.
[0016] In this embodiment, the overall control device 17 is installed in the GNSS host device 1. The power head controller is installed in the drilling power head 10, and the overall controller is installed in the GNSS mobile monitoring point housing 4. The control device also has fault diagnosis and alarm functions, which can monitor the working status of the fixed device in real time and issue an alarm in time when there is insufficient power, mechanical failure or abnormal situation.
[0017] In this embodiment, a solar power panel 6 and a GNSS antenna connection device 2 are connected to the top of the GNSS mobile monitoring point housing 4, and a GNSS antenna receiver 3 is connected to the top of the GNSS antenna connection device 2, and they are respectively connected to the mobile GNSS system. The solar power panel 6 is used to provide power for the entire GNSS system.
[0018] This embodiment takes a movable GNSS point fixing device for slope monitoring applied to a slope with monitoring requirements as an example to show the final effect diagram. Figure 2 shown.
[0019] First, place the machine on the surface of the slope to be monitored, start the ball screw control and power device 16 to move the first ball nut 8 downward, and the drilling power head 10, the main spiral blade 11, the core shaft tube 12, and the rock drill bit 13 move downward synchronously. When the rock drill bit 13 contacts the surface, stop the first ball nut 8 from moving downward, start the drilling power head 10, and the main spiral blade 11, the core shaft tube 12, and the rock drill bit 13 begin to rotate. At this time, continue to start the ball screw control and power device 16 to move the ball nut 8 downward. When drilling to the preset depth, stop the ball screw control and power device 16 and the drilling power head 10 synchronously. Adjust the length of the adjustable support rod 14, and when the GNSS mobile monitoring point housing 4 is level with the ground, adjust the adjustable support foot 15 to complete the final installation.
[0020] Secondly, the ball screw control and power device 16 and the drilling power head 10 of the machine are turned on synchronously, and the main spiral blade 11, the mandrel tube 12, the rock drill bit 13 and the first ball nut 8 are controlled to move upward. After the top of the rock drill bit 13 is off the ground, the drilling power head 10 is stopped from moving, and the ball nut 8 is continued to be controlled to move upward until the main spiral blade 11, the mandrel tube 12 and the rock drill bit 13 are all retracted into the GNSS mobile monitoring point housing 4, and the ball screw control and power device 16 are controlled to stop supplying energy, and the first ball nut 8 returns to the initial position. The adjustable support rod 14 is retracted, and the adjustable support foot 15 is loosened to complete the overall recovery process.
[0021] The movable GNSS point fixing device for slope monitoring of this embodiment can not only effectively fix the GNSS mobile monitoring station, but also adapt to complex slope environments, be easy to install, and have reasonable costs. It realizes the stable fixation of the mobile monitoring station on the slope, effectively resists the influence of external vibration and displacement, and improves the accuracy and long-term stability of the monitoring data. At the same time, when the GNSS mobile monitoring station faces the problem of relocation, the fixing device can be automatically recovered, reducing labor costs and improving the efficiency of monitoring layout.
[0022] The fixing device of this embodiment not only solves the problems existing in the traditional fixing method, but also has the advantages of compact structure, easy operation, strong adaptability, etc. It can be flexibly adjusted according to the specific conditions of the slope and monitoring requirements, providing a new solution for slope stability monitoring. At the same time, the promotion and application of this device will also help to improve the automation and intelligence level of slope monitoring, and provide more reliable technical support for the prevention of geological disasters on the slopes of open-pit mines.
[0023] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.
Claims
1. A movable GNSS point fixing device for slope monitoring, characterized in that: include: The base is fixedly connected to the housing of the GNSS mobile monitoring point; A ball screw is rotatably connected in the base, a ball nut is screwed on the ball screw, and two ball screws form a group; The drilling power head is arranged between the two ball screws and is connected to the ball nuts on the two ball screws through nuts and power head connecting rods; a controller is arranged inside the drilling power head to control the upward and downward movement of the auger rod assembly and provide downward power for the auger rod; The auger rod assembly is mainly composed of a mandrel tube, a main spiral blade and a rock drill bit. The mandrel tube and the main spiral blade are connected below the drilling power head, and the rock drill bit is arranged on the spiral blade and the head. The auger rod assembly is controlled by the internal controller of the drilling power head, so that the main spiral blade performs spiral drilling vertically downward along a preset angle until the predetermined soil depth is reached. The auxiliary support structure is installed at the lower end of the housing of the GNSS mobile monitoring point, and includes a retractable bracket and an adjustable support foot connected to the bottom of the retractable bracket. The retractable bracket is designed to be multi-level adjustable, and the length and angle are adjusted according to the slope and height of different slopes to provide additional lateral and vertical support for the mobile monitoring point. The adjustable support foot is installed at the bottom of the bracket to ensure stable contact between the support structure and the ground. The control device is divided into three parts, namely, the ball screw control and power device integrated in the base and connected to the ball screw transmission, the power head controller integrated in the power head and the main controller integrated in the housing of the GNSS mobile monitoring point; the control device is used to control the rotation speed and feed depth of the spiral drill rod and the start and stop of the locking mechanism.
2. A movable GNSS point fixing device for slope monitoring as claimed in claim 1, characterized in that: The retractable bracket is designed to be multi-level adjustable, and the length and angle can be adjusted according to the gradient and height of different slopes.
3. A movable GNSS point fixing device for slope monitoring according to claim 1 or 2, characterized in that: The surface of the spiral drill rod is covered with a wear-resistant coating.
4. The movable GNSS point fixing device for slope monitoring according to claims 1 to 3, characterized in that: The retractable bracket of the auxiliary support structure is made of aluminum alloy material; the adjustable foot pad is made of rubber and polyurethane elastic material.
5. A slope monitoring method, implemented by using a movable GNSS point fixing device for slope monitoring as claimed in claim 1, characterized in that: The following steps are involved: Install the GNSS monitoring station in the GNSS mobile monitoring point housing; Fix the fixing device at a predetermined position on the slope so that the auger rod assembly is directly opposite to the drilling position; start the auger rod assembly through the control device; Start the GNSS monitoring station to carry out real-time data monitoring, and transmit the monitoring data to the remote monitoring center or data processing terminal through remote data transmission for analysis and processing.