Intelligent full-depth bottoming spiral sampling device for coal samples
Through the design of hydraulic control and bottom-down rebound protection of the sampling device, full-depth and all-round sampling of coal samples is achieved, solving the problems of incomplete sampling and low safety in the prior art, and improving sampling accuracy and safety.
Patent Information
- Application Number
- CN202510564514.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2025-08-15
Smart Images
Figure CN120489607A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of coal sampling, and in particular relates to an intelligent full-depth bottom-touching spiral sampling device for coal samples. Background Art
[0002] Coal is the remains of ancient plants, buried in the earth's crust. It is subjected to the pressure and temperature conditions of the Earth's crust, which isolates it from the air, to produce carbonized fossil minerals. Coal is mainly mined by humans for fuel. As an important energy resource, coal quality assessment is of great significance to energy efficiency and environmental protection. Therefore, when coal is transported by coal trucks, sampling devices are usually used to collect samples of the coal inside the truck compartments. However, most of the existing sampling devices are difficult to reach during the process of sampling coal inside the coal truck compartment, as the bottom and edge areas of the compartment are difficult to reach, and it is difficult to sample coal at different depths inside the compartment, that is, it is difficult to achieve full-depth bottom sampling. This will result in the collected coal samples being unable to fully and accurately reflect the overall coal quality. At the same time, during the sampling process, when the sampling tube or sampling head contacts the bottom of the compartment or a hard object, it is difficult to rebound and stop working, which can easily cause damage to the sampling tube or sampling head, resulting in low safety of coal sampling. For this reason, we propose an intelligent full-depth bottom spiral sampling device for coal samples. Summary of the Invention
[0003] The object of the present invention is to provide an intelligent full-depth bottom-touching spiral sampling device for coal samples to solve the problems raised in the above-mentioned background technology.
[0004] To achieve the above object, the present invention provides the following technical solution: an intelligent full-depth bottom-touching spiral sampling device for coal samples, the sampling device comprising: A guide rail bracket, wherein a sampling cylinder is provided inside the guide rail bracket, and the sampling cylinder is used to sample coal samples. An auger rod is movably sleeved inside the sampling cylinder, a driving motor is fixedly installed on the top end of the auger rod, and a drill bit is fixedly installed on the bottom end of the auger rod; A hydraulic cylinder, wherein the hydraulic cylinder and the sampling cylinder are fixedly connected via a mounting block, and the hydraulic cylinder is used to drive the sampling cylinder to move up and down; The material door assembly is arranged outside the top end of the sampling barrel, and the material door assembly is used to discharge the collected coal samples.
[0005] As a preferred embodiment, the hydraulic cylinder is located in the middle of the guide rail bracket, and the hydraulic cylinder is fixedly connected to the top of the inner cavity of the guide rail bracket.
[0006] As a preferred embodiment, a spiral blade is fixedly mounted on the outside of the auger rod, and the spiral blade is movably sleeved inside the sampling barrel, and the outside of the spiral blade is in contact with the inner wall of the sampling barrel.
[0007] As a preferred embodiment, a mounting seat is provided on the outside of the driving motor, and the output shaft of the driving motor passes through the top of the sampling cylinder and is fixedly connected to the top end of the auger rod via a coupling.
[0008] As a preferred embodiment, the drill bit is located inside the sampling cylinder, and the drill bit and the auger rod are fixedly connected by bolts.
[0009] As a preferred embodiment, one side of the mounting block is fixedly connected to the top of the side of the sampling tube, and the top of the mounting block is connected to the bottom end of the hydraulic cylinder.
[0010] As a preferred embodiment, the material door assembly includes a material box, a material door is movably installed on the outside of the material box, and a telescopic arm is fixedly installed on the outside of the material door.
[0011] As a preferred embodiment, one side of the material box is connected and fixed to the top of the side of the sampling cylinder, and the material box and the material door are movably connected by a hinge.
[0012] As a preferred embodiment, the sampling device further includes a bottoming rebound component, which includes a pressure sensing probe and a controller. The pressure sensing probe is arranged between the hydraulic cylinder and the mounting block, and the controller and the hydraulic cylinder are electrically connected.
[0013] As a preferred embodiment, the output end of the pressure sensing probe is signal-connected to the input end of the controller, and the output end of the controller is wire-connected to the input end of the hydraulic cylinder.
[0014] Compared with the prior art, the present invention has the following beneficial effects: The intelligent full-depth bottom-touching spiral sampling device for coal samples is equipped with a sampling tube, a hydraulic cylinder, a spiral drill rod, spiral blades, a drive motor and a drill bit. During the coal sampling process, coal samples can be easily collected from different depths inside the coal carriage from top to bottom, that is, full-depth bottom-touching spiral sampling can be achieved. The coal samples collected in this way can more comprehensively and accurately reflect the overall coal quality, thereby improving the sampling accuracy. This intelligent full-depth bottom-touching spiral sampling device for coal samples is equipped with a pressure sensing probe and a controller. During the coal sampling process, when the bottom of the sampling tube contacts the bottom of the coal truck compartment (or a hard object), the hydraulic cylinder can be immediately controlled to retract and the sampling tube can be moved vertically upward, causing the sampling tube to rebound when it hits the bottom. This can prevent the bottom of the sampling tube from being damaged due to excessive contact force, thereby improving the safety of coal sampling. The intelligent full-depth bottom-touching spiral sampling device for coal samples is provided with a material door assembly, which can facilitate the temporary storage of the collected coal samples during the coal sampling process. When the material needs to be taken, the coal sample inside the sampling cylinder can be gradually transported to the inside of the material box, which makes it convenient for workers to take the coal samples. This intelligent full-depth bottom-touching spiral sampling device for coal samples can realize dynamic sampling by later installing horizontal and vertical moving mechanisms (such as a bridge-type mobile vehicle or a mobile gantry) on the top of the guide rail bracket, and cooperating with the existing three-dimensional laser positioning system. That is, it can sample coal at different positions inside the coal transport carriage, thus realizing all-round and blind-spot sampling in the sampling area, thereby improving the working efficiency of the sampling device. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a front schematic diagram of the structure of the present invention; Figure 2 A partial side cross-sectional view of the structure of the present invention; Figure 3 In the structure of the present invention Figure 2 A magnified schematic diagram of point A; Figure 4 In the structure of the present invention Figure 2 An enlarged schematic diagram of point B; Figure 5 Schematic diagram of telecommunication connection of the pressure sensing probe in the structure of the present invention.
[0016] In the figure: 1. Guide rail bracket; 2. Sampling cylinder; 3. Hydraulic cylinder; 4. Auger rod; 5. Auger blade; 6. Drive motor; 7. Drill bit; 8. Mounting base; 9. Mounting block; 10. Material door assembly; 101. Material box; 102. Material door; 103. Telescopic arm; 11. Pressure sensing probe. DETAILED DESCRIPTION
[0017] The present invention will be further described below with reference to the embodiments.
[0018] The following examples are intended to illustrate the present invention but are not intended to limit the scope of protection of the present invention. The conditions in the examples may be further adjusted according to specific conditions. Simple improvements to the method of the present invention within the scope of the present invention are also within the scope of protection claimed in the present invention.
[0019] Example 1:
[0020] See also Figure 1 、 Figure 2 、 Figure 3 and Figure 4 The present invention provides an intelligent full-depth bottom-touching spiral sampling device for coal samples. The sampling device includes a guide rail bracket 1, a hydraulic cylinder 3 and a material door assembly 10. A sampling tube 2 is provided inside the guide rail bracket 1. The sampling tube 2 is used to sample coal samples. The interior of the sampling tube 2 is movably sleeved with an auger rod 4. A spiral blade 5 is fixedly installed on the outside of the auger rod 4. The spiral blade 5 is movably sleeved inside the sampling tube 2, and the outside of the spiral blade 5 contacts the inner wall of the sampling tube 2. A driving motor 6 is fixedly installed at the top of the auger rod 4. A mounting seat 8 is provided on the outside of the driving motor 6. The output shaft of the driving motor 6 passes through the top of the sampling tube 2 and is fixedly connected to the top of the auger rod 4 through a coupling. A drill bit 7 is fixedly installed at the bottom end of the auger rod 4. The drill bit 7 is located inside the sampling tube 2, and the drill bit 7 and the auger rod 4 are fixedly connected by bolts. In this embodiment, during the actual coal sampling process, a transverse and longitudinal moving mechanism (such as a bridge-type moving vehicle or a moving gantry) can be installed on the top of the guide rail bracket 1. In combination with the existing three-dimensional laser positioning system, dynamic sampling can be achieved, that is, coal sampling operations can be performed at different locations inside the coal transport carriage; The specific operation method can be: laser sensors are installed on the trolley, the small trolley and the sampling tube 2 of the horizontal and vertical moving mechanism on the top of the guide rail bracket 1, so that the position information of the coal transport vehicle and the coal sampling can be clearly obtained, and the data information collected by the laser sensor is transmitted back to the controller for signal processing and analysis (the control method here can be written through the PLC program), and debugging and calibration are carried out, so that the precise location of the sampling point can be achieved; The drill bit 7 is made of cemented carbide with a hardness of HRA90 or above, and the auger rod 4 is made of high-strength alloy steel to ensure that it is not easily deformed or broken during the sampling process. When the drive motor 6 is turned on, the auger rod 4 rotates, and the auger rod 4 drives the spiral blade 5 and the drill bit 7 to rotate inside the sampling tube 2.
[0021] The hydraulic cylinder 3 and the sampling tube 2 are fixedly connected by a mounting block 9. The hydraulic cylinder 3 is used to drive the sampling tube 2 to move up and down. The hydraulic cylinder 3 is located in the middle of the guide rail bracket 1, and the hydraulic cylinder 3 is fixedly connected to the top of the inner cavity of the guide rail bracket 1. One side of the mounting block 9 is fixedly connected to the top of the side of the sampling tube 2, and the top of the mounting block 9 is connected to the bottom end of the hydraulic cylinder 3; In this embodiment, when the hydraulic cylinder 3 is started, it will extend and the hydraulic cylinder 3 will use the mounting block 9 to drive the sampling tube 2 to move vertically downward, so that the bottom end of the sampling tube 2 is slowly inserted into the coal inside the carriage. At the same time, the rotating spiral blades 5 and the drill bit 7 will transport the coal at this location from the bottom of the inner cavity of the sampling tube 2 to the top of the inner cavity of the sampling tube 2. In this way, the coal at each layer at this location inside the carriage will be sampled, that is, full-depth bottom-touching spiral sampling can be achieved.
[0022] The material door assembly 10 is arranged on the outside of the top end of the sampling cylinder 2, and the material door assembly 10 is used to discharge the taken coal sample. The material door assembly 10 includes a material box 101, a material door 102 is movably installed on the outside of the material box 101, and a telescopic arm 103 is fixedly installed on the outside of the material door 102. One side of the material box 101 is connected and fixed to the top of the side of the sampling cylinder 2, and the material box 101 and the material door 102 are movably connected by a hinge; In this embodiment, when it is necessary to take the collected coal sample, the telescopic arm 103 is started to move, and the telescopic arm 103 will drive the material door 102 to move, so that the material door 102 and the material box 101 are separated, that is, the material door 102 can be opened, so that the coal sample can be taken from the inside of the material box 101.
[0023] In summary, compared with most existing sampling devices, the coal sample intelligent full-depth bottom-touching spiral sampling device of this embodiment has the following advantages: 1. By arranging the sampling tube 2, the hydraulic cylinder 3, the auger rod 4, the spiral blade 5, the drive motor 6 and the drill bit 7, it is possible to conveniently collect coal samples at different depths inside the coal carriage from top to bottom during the coal sampling process, that is, to realize full-depth bottom-touching spiral sampling. The coal samples collected in this way can more comprehensively and accurately reflect the overall coal quality, thereby improving the sampling accuracy; 2. By setting up the material door assembly 10, the coal samples taken can be temporarily stored during the coal sampling process, and when the material needs to be taken, the coal samples inside the sampling tube 2 can be gradually transported to the inside of the material box 101, which makes it convenient for workers to take the coal samples.
[0024] Example 2:
[0025] See also Figure 2 、 Figure 3 and Figure 5 The intelligent full-depth bottoming spiral sampling device for coal samples in this embodiment adds a bottoming rebound component on the basis of the first embodiment. The bottoming rebound component includes a pressure sensing probe 11 and a controller. The pressure sensing probe 11 is arranged between the hydraulic cylinder 3 and the mounting block 9. The controller and the hydraulic cylinder 3 are electrically connected. The output end of the pressure sensing probe 11 is signal-connected to the input end of the controller, and the output end of the controller is connected to the input end of the hydraulic cylinder 3 by wire. In this embodiment, when the sampling tube 2 is continuously moved downward for sampling under the push of the hydraulic cylinder 3, if the bottom of the sampling tube 2 contacts the bottom of the inner cavity of the coal truck (or a hard object), the bottom of the sampling tube 2 will encounter resistance and be difficult to move downward, and the mounting block 9 will also stop moving. The mounting block 9 will generate a reverse pressure on the pressure sensing probe 11. At this time, when the force received by the pressure sensing probe 11 is greater than the resistance of the normal downward movement of the sampling tube 2 for sampling, the pressure sensing probe 11 will transmit the pressure information to the controller (the controller can be a product of the prior art) in the form of a signal. The controller will analyze and process the received signal and control the hydraulic cylinder 3 to cause the hydraulic cylinder 3 to retract and use the mounting block 9 to pull the sampling tube 2 vertically upward, thereby avoiding damage between the sampling tube 2 and the bottom of the truck (or a hard object) due to excessive contact force, that is, the sampling tube 2 can achieve a bottoming rebound effect, thereby improving the safety of coal sampling.
[0026] In summary, the intelligent full-depth bottom-touching spiral sampling device for coal samples of this embodiment, by providing a pressure sensing probe 11 and a controller, can immediately control the hydraulic cylinder 3 to retract when the bottom of the sampling tube 2 contacts the bottom of the inner cavity of the coal truck compartment (or a hard object) during the process of coal sample collection, and the sampling tube 2 will move vertically upward, so that the sampling tube 2 will rebound after touching the bottom, thereby preventing the bottom of the sampling tube 2 from being damaged due to excessive contact force, thereby improving the safety of coal sample collection.
[0027] The working principle and usage process of the present invention are as follows: First, according to the actual needs of coal sampling, a horizontal and vertical moving mechanism (such as a bridge-type mobile vehicle or a mobile gantry) can be installed on the top of the guide rail bracket 1. In combination with the existing three-dimensional laser positioning system, dynamic sampling can be achieved, that is, coal can be sampled at different positions inside the coal transport carriage, thereby achieving all-round sampling without blind spots inside the carriage; Then, when the sampling points of the coal inside the carriage are selected, the driving motor 6 is turned on to rotate the auger rod 4, and the auger rod 4 will drive the spiral blades 5 and the drill bit 7 to rotate inside the sampling tube 2. At the same time, the hydraulic cylinder 3 is started to extend it, and the hydraulic cylinder 3 will use the mounting block 9 to drive the sampling tube 2 to move vertically downward, so that the bottom end of the sampling tube 2 is slowly inserted into the coal inside the carriage. With the rotating spiral blades 5 and the drill bit 7, the coal at this location will be transported from the bottom of the inner cavity of the sampling tube 2 to the top of the inner cavity of the sampling tube 2. In this way, the coal at each layer inside the carriage will be sampled, that is, full-depth bottom-touching spiral sampling can be achieved; Then, as the sampling tube 2 continues to move downward to take samples, when the bottom of the sampling tube 2 contacts the bottom of the inner cavity of the coal truck (or a hard object), the bottom of the sampling tube 2 will be subject to resistance and difficult to move downward, and the mounting block 9 will also stop moving, and the mounting block 9 will generate a reverse pressure on the pressure sensing probe 11. At this time, when the force received by the pressure sensing probe 11 is greater than the resistance of the normal downward movement of the sampling tube 2 for sampling, the pressure sensing probe 11 will transmit the pressure information to the controller (the controller can be a product of the prior art) in the form of a signal, and the controller will analyze and process the received signal and control the hydraulic cylinder 3 to make the hydraulic cylinder 3 retract and use the mounting block 9 to pull the sampling tube 2 vertically upward, thereby preventing the sampling tube 2 and the bottom of the car (or a hard object) from being damaged due to excessive contact force, that is, the sampling tube 2 can achieve a bottoming rebound effect, thereby improving the safety of coal sample collection; Finally, when it is necessary to take the collected coal sample, the telescopic arm 103 is started to move, and the telescopic arm 103 will drive the material door 102 to move, so that the material door 102 and the material box 101 are separated, that is, the material door 102 can be opened, so that the coal sample can be taken from the inside of the material box 101.
[0028] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and alterations may be made to these embodiments without departing from the principles of the invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. An intelligent full-depth bottom-touching spiral sampling device for coal samples, characterized in that: The sampling device comprises: A guide rail bracket (1), wherein a sampling cylinder (2) is provided inside the guide rail bracket (1), and the sampling cylinder (2) is used to sample coal samples. A spiral drill rod (4) is movably sleeved inside the sampling cylinder (2), a driving motor (6) is fixedly mounted on the top end of the spiral drill rod (4), and a drill bit (7) is fixedly mounted on the bottom end of the spiral drill rod (4); A hydraulic cylinder (3), wherein the hydraulic cylinder (3) and the sampling cylinder (2) are fixedly connected via a mounting block (9), and the hydraulic cylinder (3) is used to drive the sampling cylinder (2) to move up and down; A material door assembly (10) is provided outside the top end of the sampling barrel (2), and the material door assembly (10) is used to discharge the collected coal sample.
2. The intelligent full-depth bottom-touching spiral sampling device for coal samples according to claim 1 is characterized by: The hydraulic oil cylinder (3) is located in the middle of the guide rail bracket (1), and the hydraulic oil cylinder (3) is fixedly connected to the top of the inner cavity of the guide rail bracket (1).
3. The intelligent full-depth bottom-touching spiral sampling device for coal samples according to claim 1 is characterized by: A spiral blade (5) is fixedly mounted on the outside of the spiral drill rod (4), and the spiral blade (5) is movably sleeved inside the sampling barrel (2), with the outside of the spiral blade (5) in contact with the inner wall of the sampling barrel (2).
4. The intelligent full-depth bottom-touching spiral sampling device for coal samples according to claim 1 is characterized by: A mounting seat (8) is provided on the outside of the drive motor (6), and the output shaft of the drive motor (6) passes through the top of the sampling cylinder (2) and is fixedly connected to the top end of the auger rod (4) via a coupling.
5. The intelligent full-depth bottom-touching spiral sampling device for coal samples according to claim 1 is characterized by: The drill bit (7) is located inside the sampling cylinder (2), and the drill bit (7) and the spiral drill rod (4) are fixedly connected by bolts.
6. The intelligent full-depth bottom-touching spiral sampling device for coal samples according to claim 1, characterized in that: One side of the mounting block (9) is fixedly connected to the top of the side of the sampling tube (2), and the top of the mounting block (9) is connected to the bottom end of the hydraulic cylinder (3).
7. The intelligent full-depth bottom-touching spiral sampling device for coal samples according to claim 1, characterized in that: The material door assembly (10) comprises a material box (101), a material door (102) is movably mounted on the outside of the material box (101), and a telescopic arm (103) is fixedly mounted on the outside of the material door (102).
8. The intelligent full-depth bottom-touching spiral sampling device for coal samples according to claim 7, characterized in that: One side of the material box (101) is connected and fixed to the top of the side of the sampling cylinder (2), and the material box (101) and the material door (102) are movably connected via a hinge.
9. The intelligent full-depth bottom-touching spiral sampling device for coal samples according to claim 1, characterized in that: The sampling device further comprises a bottoming-out rebound component, the bottoming-out rebound component comprising a pressure sensing probe (11) and a controller, the pressure sensing probe (11) being arranged between the hydraulic cylinder (3) and the mounting block (9), and the controller and the hydraulic cylinder (3) being electrically connected.
10. The intelligent full-depth bottom-touching spiral sampling device for coal samples according to claim 9, characterized in that: The output end of the pressure sensing probe (11) is connected to the input end of the controller for signal connection, and the output end of the controller is connected to the input end of the hydraulic cylinder (3) by wire.