Sampling device

Abstract

The utility model discloses a sampling device. The sampling device comprises a vehicle body, at least one wheel, a lifting assembly, a sampling assembly, at least one distance sensor and a controller, at least one wheel is arranged at the lower end of the vehicle body and used for driving the vehicle body to walk on a horizontal track; at least one distance sensor is arranged at the lower end of the vehicle body; the lifting assembly is connected with the vehicle body and the sampling assembly; the controller is electrically connected with the distance sensor, the lifting assembly and the sampling assembly. When materials are more solid or obstructed, the sampling assembly jacks up the vehicle body while the sampling assembly is obstructed, the distance sensor sends a signal to the controller when monitoring that the distance between the vehicle body and the track exceeds a set threshold value in real time, and the controller controls the lifting assembly and / or the sampling assembly to stop running in time. Therefore, the vehicle body is prevented from being overturned to cause equipment failure, increase of operation risk and reduction of working efficiency.

Description

Technical Field

[0001] The utility model relates to the technical field of material sampling, in particular to a sampling device. Background Art

[0002] When the bridge sampler is used to drill the spiral sampling head into the material, the drilling process is blocked, which lifts up the bridge sampler, causing the bridge sampler to derail and need maintenance. During the maintenance of the bridge sampler derailment, manual sampling is required, which increases the risk of manual online operation and the risk of abnormal operation during equipment maintenance. Utility Model Content

[0003] In view of the above problems, the present application is proposed to provide a sampling device that overcomes the above problems or at least partially solves the above problems.

[0004] In a first aspect, a sampling device is provided, comprising: a vehicle body, at least one distance sensor, at least one wheel, a lifting assembly, a sampling assembly, and a controller;

[0005] At least one wheel is arranged at the lower end of the vehicle body, and is used to drive the vehicle body to move on the horizontal track;

[0006] At least one distance sensor is disposed at the lower end of the vehicle body and is used to detect the distance between the vehicle body and the track;

[0007] The lifting assembly is connected to the vehicle body, and the sampling assembly is connected to the lifting assembly;

[0008] The controller is electrically connected to the distance sensor, the lifting assembly, and the sampling assembly, respectively, and is used to control the lifting assembly to drive the sampling assembly to rise or fall, and to control the lifting assembly and / or the sampling assembly to stop running when receiving a signal sent by the distance sensor that the distance between the vehicle body and the track exceeds a set threshold.

[0009] Optionally, the sampling assembly includes a sleeve, a drill rod, and a sampling motor;

[0010] The sleeve is arranged under the vehicle body and connected to the lifting assembly, and a discharge port is arranged on the upper side of the sleeve;

[0011] The drill rod is arranged in the sleeve, and there is a gap between the drill rod and the sleeve;

[0012] The sampling motor is arranged at the upper end of the sleeve and connected to the lifting assembly, and the output end of the sampling motor is transmission-connected to the upper end of the drill rod;

[0013] The controller is electrically connected to the sampling motor, and is used to control the sampling motor to run and drive the drill rod to rotate, and to control the sampling motor to stop running when receiving a signal from a distance sensor indicating that the distance between the vehicle body and the track exceeds a set threshold.

[0014] Optionally, the sampling assembly further includes a hopper, which is disposed at the discharge port outside the sleeve.

[0015] Optionally, the sampling assembly also includes a cylinder, the hopper includes a main body and a discharge door, the lower end of the main body has a discharge opening, the discharge door is arranged at the discharge opening and is pivotally connected to the main body, the cylinder body of the cylinder is connected to the lifting assembly, and the piston rod of the cylinder is hinged to the discharge door; the controller is electrically connected to the cylinder.

[0016] Optionally, the lifting assembly includes a lifting frame and a lifting motor;

[0017] The lifting frame is arranged below the lifting motor and is drivingly connected to the output end of the lifting motor;

[0018] The controller is connected to the lifting motor and is used to control the operation of the lifting motor and drive the lifting frame to rise or fall, and control the lifting motor to stop running when receiving a signal from the distance sensor indicating that the distance between the vehicle body and the track exceeds a set threshold.

[0019] Optionally, the lifting assembly includes a vertical frame, a chain, a first sprocket, and a second sprocket;

[0020] One end of the vertical frame is connected to the vehicle body, and the other end is located under the track;

[0021] The first sprocket and the second sprocket are respectively installed on the vertical frame, and the first sprocket is located above the second sprocket;

[0022] One end of the chain is connected to the lifting frame, and the other end of the chain is connected to the lifting frame after passing through the first sprocket and the second sprocket in sequence;

[0023] The lifting motor is fixedly connected to the vertical frame, and the output end of the lifting motor is drivingly connected to the first sprocket.

[0024] Optionally, the lifting assembly includes two vertical rails, and two vertical frames are arranged in parallel on both sides of the lifting frame and are respectively connected to the vertical frames; rotating wheels are respectively arranged on both sides of the lifting frame, and each rotating wheel is movably connected to a vertical rail.

[0025] Optionally, the number of wheels is 4, the number of distance sensors is 4, and each distance sensor is arranged at intervals corresponding to one wheel.

[0026] Optionally, the horizontal distance between each distance sensor and a wheel is 0.5 to 1 cm.

[0027] Optionally, the distance sensor includes a laser distance sensor, an infrared distance sensor, and an ultrasonic distance sensor.

[0028] The technical solution provided by this application has at least the following technical effects or advantages:

[0029] The sampling device provided in the present application, when the material is relatively solid or there is an obstruction, the sampling component will lift up the vehicle body while being blocked. The distance sensor will monitor in real time that the distance between the vehicle body and the track exceeds the set threshold and send a signal to the controller. The controller will promptly control the lifting component and / or the sampling component to stop running, so as to avoid the vehicle body being overturned, causing equipment failure, increasing operation risks and reducing work efficiency.

[0030] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present application. Also, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0032] Figure 1 This is a structural frame diagram of the sampling device in the embodiment of the present application;

[0033] Figure 2 This is a schematic diagram of a sampling component in an embodiment of the present application;

[0034] Figure 3 This is a structural diagram of the sampling device in the embodiment of the present application. DETAILED DESCRIPTION

[0035] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings.

[0036] Various structural schematic diagrams according to embodiments of the present application are shown in the accompanying drawings. These figures are not drawn to scale, and some details are magnified and some details may be omitted for the purpose of clear expression. The shapes of various regions and layers shown in the figures and the relative sizes and positional relationships therebetween are only exemplary, and may deviate in practice due to manufacturing tolerances or technical limitations, and those skilled in the art may further design regions / layers with different shapes, sizes, and relative positions according to actual needs.

[0037] In order to better understand the above-mentioned technical scheme, the above-mentioned technical scheme will be described in detail below in combination with specific implementation methods. It should be understood that the embodiments of the present disclosure and the specific features in the embodiments are detailed descriptions of the technical scheme of the present application, rather than limitations on the technical scheme of the present application. In the absence of conflict, the embodiments of the present application and the technical features in the embodiments can be combined with each other.

[0038] After the powder material is transported over a long distance to the sampling point, the bottom will be relatively solid, which will cause some difficulties when sampling the material is required.

[0039] Taking the bridge sampler to sample large-particle materials such as limestone powder in a tank truck as an example, the bridge sampler is a sampling device that uses a set of bridge-type large and small car travel mechanisms to inspect raw materials. This equipment is widely used in coal fields, power plants, ports, steel mills and other fields. After the bridge sampling equipment reaches the predetermined sampling point, the sampling system is started. The lifting component of the spiral sampling head in semi-automatic or automatic mode brings the sampling head to the predetermined material depth and closes the collection bin. After reaching the sampling depth, the spiral sampling head returns to the upper limit position and reaches the discharge point, actively opens the collection bin, and the sample is sent to the sample collection system through the feeding mechanism. However, there are the following problems during operation:

[0040] 1. Due to long-distance transportation, large-particle materials such as limestone powder are relatively solid when they arrive at the sampling point, and the trolley may be lifted up and derailed during the drilling process;

[0041] 2. The internal structure of the tank car changes, causing the drill pipe to be pierced by foreign objects and derail;

[0042] 3. The sampling personnel’s misoperation caused the sampling machine trolley to derail.

[0043] The need for manual sampling when the trolley fails increases the risk of manual online operations and the risk of abnormal operations during equipment maintenance. How to avoid the above problems and reduce the risks during abnormal operations is the first problem to be solved; when the bridge sampler is used to drill the spiral sampling head into the material, the drilling process is blocked, thereby lifting the bridge sampler, causing the bridge sampler to derail and require maintenance.

[0044] In view of this, the present application provides a sampling device 100, please refer to Figure 1 , Figure 1 This is a structural diagram of a sampling device in an embodiment of the present application. The sampling device 100 includes:

[0045] Vehicle body 101, at least one wheel 102, at least one distance sensor 103, lifting assembly 104, sampling assembly 105, controller 106;

[0046] At least one wheel 102 is disposed at the lower end of the vehicle body 101, and is used to drive the vehicle body 101 to move on the horizontal track 200;

[0047] At least one distance sensor 103 is disposed at the lower end of the vehicle body 101 and is used to detect the distance between the vehicle body 101 and the track 200;

[0048] The lifting assembly 104 is connected to the vehicle body 101 , and the sampling assembly 105 is connected to the lifting assembly 104 ;

[0049] The controller 106 is electrically connected to the distance sensor 103, the lifting assembly 104, and the sampling assembly 105, respectively, and is used to control the lifting assembly 104 to drive the sampling assembly 105 to rise or fall, and when receiving a signal sent by the distance sensor 103 that the distance between the vehicle body 101 and the track 200 exceeds a set threshold, control the lifting assembly 104 and / or the sampling assembly 105 to stop running.

[0050] After the tanker travels to the sampling point set below the track 200, the vehicle body 101 moves along the track 200 to the top of the tanker, and the lifting assembly 104 operates to drive the sampling assembly 105 to extend into the sampling port on the top of the tanker, and the sampling assembly 105 drills downward to take out the material in the tanker. When the material is relatively solid or there is an obstacle, the sampling assembly 105 is blocked and the vehicle body 101 is lifted up. The distance sensor 103 detects in real time that the distance between the vehicle body 101 and the track 200 exceeds the set threshold and sends a signal to the controller 106. The controller 106 immediately controls the lifting assembly 104 and / or the sampling assembly 105 to stop running to prevent the vehicle body 101 from being overturned.

[0051] It is understandable that the sampling assembly 105 may be blocked during the descent process, and at this time, the lifting assembly 104 is controlled to stop the sampling assembly 105 from continuing to descend, thereby avoiding overturning the vehicle body 101. The sampling assembly 105 may also be blocked when drilling down for sampling, and at this time, the sampling assembly 105 is controlled to stop operating, thereby avoiding overturning the vehicle body 101. The sampling assembly 105 may also drill down for sampling while descending, and at this time, if it is blocked, the lifting assembly 104 and the sampling assembly 105 are stopped at the same time, thereby avoiding overturning the vehicle body 101.

[0052] Understandably, Figure 1 The connecting line between the mid-range sensor 106 and the vehicle body 101 and the track 200 represents that the distance sensor 106 is used to detect the distance between the vehicle body 101 and the track 200. The distance sensor 103 can be a laser distance sensor, an infrared distance sensor, or an ultrasonic distance sensor, which is not limited here.

[0053] For example, Figure 2 Schematic diagram of the sampling component provided in an embodiment of the present application.

[0054] The sampling assembly 105 may include a sleeve 201, a drill rod 202, and a sampling motor 203;

[0055] The sleeve 201 is arranged below the vehicle body 101 and connected to the lifting assembly 104, and a discharge port 2011 is arranged on the side of the upper end of the sleeve 201. The drill rod 202 is arranged in the sleeve 201, and there is a gap between the drill rod 202 and the sleeve 201. The sampling motor 203 is arranged at the upper end of the sleeve 201 and connected to the lifting assembly 104, and the output end of the sampling motor 203 is transmission-connected to the upper end of the drill rod 202. The controller 106 is electrically connected to the sampling motor 203, and is used to control the sampling motor 203 to run and drive the drill rod 202 to rotate, and control the sampling motor 203 to stop running when receiving a signal sent by the distance sensor 103 that the distance between the vehicle body 101 and the track 200 exceeds a set threshold.

[0056] The lifting assembly 104 drives the sleeve 201 and the drill rod 202 to descend to the insertion position. Figure 2 In the material 206 in the tank truck shown, the sampling motor 203 drives the drill rod 202 to rotate when it is running. When the rotating rod rotates, the material 206 is sent into the sleeve 201 and the material 206 is discharged from the discharge port 2011, thereby facilitating sampling. After the sampling is completed, the sampling motor 203 drives the drill rod 202 to rotate in the opposite direction to send the material 206 in the sleeve 201 back to the tank truck.

[0057] In some feasible implementations, the sampling assembly 105 further includes a hopper 204, which is disposed at the discharge port 2011 outside the sleeve 201. The hopper 204 collects the material 206 discharged from the discharge port 2011 of the sleeve 201, thereby achieving sampling.

[0058] In some feasible embodiments, the sampling assembly 105 further includes a cylinder 205, the hopper 204 includes a main body 2041 and a discharge door 2042, the lower end of the main body 2041 has a discharge opening, the discharge door 2042 is arranged at the discharge opening and is pivotally connected to the main body 2041, the cylinder body of the cylinder 205 is connected to the lifting assembly 104, the piston rod of the cylinder 205 is hinged to the discharge door 2042; the controller 106 is electrically connected to the cylinder 205. The material 206 discharged from the discharge port 2011 falls into the hopper 204, and after the sampling is completed, the sampling device 100 moves along the track 200 to the set workstation, the controller 106 controls the cylinder 205 to contract and drive the discharge door 2042 to open, and the material 206 in the hopper 204 is sent to the collection box on the workstation through the discharge port, thereby realizing the transfer of the material 206. After all the materials 206 in the hopper 204 are unloaded, the controller 106 controls the cylinder 205 to extend to drive the unloading door 2042 to block the unloading port to facilitate the next sampling.

[0059] It is understood that the structure shown in the embodiment of the present application does not constitute a specific limitation on the sampling component 105. In other embodiments of the present application, the sampling component 105 may include more or fewer components than shown, or combine some components, or separate some components, or arrange the components differently.

[0060] The following specific embodiments are used to describe in detail the technical solution of the present application and how the technical solution of the present application solves the above technical problems. The following specific embodiments can be implemented independently or in combination with each other, and the same or similar concepts or processes may not be described in detail in some embodiments.

[0061] Next, take the lifting assembly 104 as an example, and combine Figure 3 The sampling device 100 provided in the embodiment of the present application is described, and this example does not constitute a limitation on the embodiment of the present application. The following embodiments can be combined with each other, and the same or similar concepts or processes will not be described in detail.

[0062] The tank truck transports the material 206 to be sampled to the bottom of the horizontal track 200, and the lifting assembly 104 drives the sampling mechanism to rise to a certain height so that there is sufficient space under the track 200 for the tank truck to park. After the tank truck is parked in place, the lifting assembly 104 drives the sampling mechanism down to allow the drill rod 202 to be inserted into the material 206 in the tank truck for sampling.

[0063] like Figure 3 As shown, the lifting assembly 104 includes a lifting motor 301 and a lifting frame 302; the lifting frame 302 is arranged below the lifting motor 301 and is in driving connection with the output end of the lifting motor 301; the controller 106 is connected to the lifting motor 301, and is used to control the operation of the lifting motor 301 and drive the lifting frame 302 to rise or fall, and control the lifting motor 301 to stop running when receiving a signal from the distance sensor 103 indicating that the distance between the vehicle body 101 and the track 200 exceeds a set threshold. When the lifting motor 301 is running, it controls the lifting frame 302 to rise or fall, thereby driving the sampling mechanism to rise and fall accordingly.

[0064] It can be understood that the lifting frame 302 drives the sampling assembly 105 to directly rise and fall, so the sleeve 201, the sampling motor 203, the hopper 204 and the cylinder 205 of the sampling assembly 105 are all Figure 3 As shown, it is directly connected to the lifting frame 302.

[0065] In some feasible implementations, Figure 3As shown, the lifting assembly 104 also includes a vertical frame 303, a chain 304, a first sprocket 305, and a second sprocket 306. One end of the vertical frame 303 is connected to the vehicle body 101, and the other end is located below the track 200. The first sprocket 305 and the second sprocket 306 are respectively installed on the vertical frame 303, and the first sprocket 305 is located above the second sprocket 306. One end of the chain 304 is connected to the lifting frame 302, and the other end is connected to the lifting frame 302 after passing through the first sprocket 305 and the second sprocket 306 in sequence. The output end of the lifting motor 301 is connected to the first sprocket 305 in transmission connection.

[0066] It should be noted that the connection point between the end of the chain 304 close to the first sprocket 305 and the lifting frame 302 should be higher than the connection point between the end of the chain 304 close to the second sprocket 306 and the lifting frame 302 to ensure the balance and stability of the lifting frame 302.

[0067] When the lifting motor 301 rotates forward, the chain 304 is driven to rotate forward through the first sprocket 305, and the lifting frame 302 is driven to rise. When the lifting motor 301 rotates reversely, the chain 304 is driven to rotate reversely through the first sprocket 305, and the lifting frame 302 is driven to descend.

[0068] It can be understood that the chain 304, the first sprocket 305, and the second sprocket 306, as the main transmission structure between the lifting motor 301 and the lifting frame 302, can be arranged in pairs on both sides of the lifting frame 302, so as to ensure the force balance on both sides of the lifting frame 302, and then ensure vertical lifting, which is not limited here.

[0069] In some feasible embodiments, the lifting assembly 104 includes two vertical rails 307, two vertical frames 303 are arranged in parallel on both sides of the lifting frame 302 and are respectively connected to the vertical frames 303; wheels 3021 are respectively arranged on both sides of the lifting frame 302, and each wheel 3021 is movably connected to a vertical rail 307. When the tank truck is parked in place, the opening position on the top of the tank truck is fixed, so that when the lifting frame 302 drives the sampling mechanism to rise and fall, the wheels 3021 move along the vertical rails 307, so that the lifting frame 302 and the sampling mechanism are vertically lifted and lowered, thereby ensuring that the drill rod 202 and the sleeve 201 are accurately inserted into the tank truck when the sampling mechanism descends, and avoiding friction or collision between the sampling mechanism and the tank truck during the lifting and lowering.

[0070] For example, the horizontal rails 200 are arranged in parallel in pairs, the number of wheels 102 is 4, the number of distance sensors 103 is 4, and each distance sensor 103 is arranged at intervals corresponding to one wheel 102 .

[0071] Two front and rear wheels 102 are respectively arranged on both sides of the vehicle body 101, and four distance sensors 103 monitor the distance between four positions close to the wheels 102 on the vehicle body 101 and the horizontal track 200 in real time. When the vehicle body 101 is horizontal, it can ensure that the lifting assembly 104 drives the sampling mechanism to lift vertically to accurately sample. When the sampling mechanism is blocked and the vehicle body 101 is lifted, the four distance sensors 103 monitor the change in the horizontality of the vehicle body 101 in real time, and quickly send a signal to the controller 106 to stop the operation of the lifting assembly 104 and the sampling mechanism before the vehicle body 101 is overturned, so as to avoid the vehicle body 101 derailing and causing equipment failure, increasing operation risks and reducing work efficiency.

[0072] In some optional implementations, the horizontal distance between each distance sensor 103 and a wheel 102 is 0.5-1 cm, which is not limited here.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0074] In the description provided herein, a large number of specific details are described. However, it is understood that the embodiments of the present application can be practiced without these specific details. In some instances, well-known methods, structures and techniques are not shown in detail so as not to obscure the understanding of this description.

Claims

1. A sampling device, characterized in that: include: A vehicle body, at least one distance sensor, at least one wheel, a lifting assembly, a sampling assembly, and a controller; The at least one wheel is arranged at the lower end of the vehicle body, and is used to drive the vehicle body to move on a horizontal track; The at least one distance sensor is disposed at the lower end of the vehicle body and is used to detect the distance between the vehicle body and the track; The lifting assembly is connected to the vehicle body, and the sampling assembly is connected to the lifting assembly; The controller is electrically connected to the distance sensor, the lifting assembly, and the sampling assembly, respectively, and is used to control the lifting assembly to drive the sampling assembly to rise or fall, and to control the lifting assembly and / or the sampling assembly to stop running when receiving a signal sent by the distance sensor indicating that the distance between the vehicle body and the track exceeds a set threshold.

2. The sampling device according to claim 1, characterized in that The sampling assembly includes a sleeve, a drill rod, and a sampling motor; The sleeve is arranged below the vehicle body and connected to the lifting assembly, and a discharge port is arranged on the upper side of the sleeve; The drill rod is arranged in the sleeve, and there is a gap between the drill rod and the sleeve; The sampling motor is arranged at the upper end of the sleeve and connected to the lifting assembly, and the output end of the sampling motor is transmission-connected to the upper end of the drill rod; The controller is electrically connected to the sampling motor, and is used to control the sampling motor to run and drive the drill rod to rotate, and control the sampling motor to stop running when receiving a signal from the distance sensor indicating that the distance between the vehicle body and the track exceeds a set threshold.

3. The sampling device according to claim 2, characterized in that: The sampling assembly also includes a hopper, which is arranged at the discharge port outside the sleeve.

4. The sampling device according to claim 3, characterized in that: The sampling assembly also includes a cylinder, the hopper includes a main body and a discharge door, the lower end of the main body has a discharge opening, the discharge door is arranged at the discharge opening and is pivotally connected to the main body, the cylinder body of the cylinder is connected to the lifting assembly, and the piston rod of the cylinder is hinged to the discharge door; the controller is electrically connected to the cylinder.

5. The sampling device according to claim 2, characterized in that: The lifting assembly includes a lifting frame and a lifting motor; The lifting frame is arranged below the lifting motor and is transmission-connected to the output end of the lifting motor; The controller is connected to the lifting motor and is used to control the operation of the lifting motor and drive the lifting frame to rise or fall, and control the lifting motor to stop running when receiving a signal sent by the distance sensor indicating that the distance between the vehicle body and the track exceeds a set threshold.

6. The sampling device according to claim 5, characterized in that The lifting assembly includes a vertical frame, a chain, a first sprocket, and a second sprocket; One end of the vertical frame is connected to the vehicle body, and the other end is located below the track; The first sprocket and the second sprocket are respectively installed on the vertical frame, and the first sprocket is located above the second sprocket; One end of the chain is connected to the lifting frame, and the other end of the chain is connected to the lifting frame after passing through the first sprocket and the second sprocket in sequence; The lifting motor is fixedly connected to the vertical frame, and the output end of the lifting motor is drivingly connected to the first sprocket.

7. The sampling device according to claim 6, characterized in that The lifting assembly comprises two vertical rails. The two vertical frames are arranged in parallel on both sides of the lifting frame and are respectively connected to the vertical frames. Rotating wheels are respectively arranged on both sides of the lifting frame, and each rotating wheel is movably connected to one of the vertical rails.

8. The sampling device according to claim 1, characterized in that: The number of the wheels is 4, the number of the distance sensors is 4, and each distance sensor is arranged at intervals corresponding to one of the wheels.

9. The sampling device according to claim 3, characterized in that: The horizontal distance between each distance sensor and one of the wheels is 0.5-1 cm.

10. The sampling device according to claim 1, characterized in that: The distance sensor includes a laser distance sensor, an infrared distance sensor, and an ultrasonic distance sensor.

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