Coal sample sampling device

Abstract

The utility model discloses a coal sample sampling device, including the installation board for being used for with sampling mechanical arm installation connection and the sampling pipe of rotation setting on the installation board, the outside of sampling pipe is provided with helical blade, be provided with the power component for driving sampling pipe rotation on the installation board, sampling pipe is with helical ascending and helical descending mode and extends into the coal heap, the bottom of sampling pipe is pointed, and the both sides of pointed have the sampling mouth for coal sample to enter, and are provided with the blocking component that can open and close the sampling mouth, store coal sample through sampling pipe, and under the driving of sampling mechanical arm, will coal sample shift to coal sample transmission equipment. The utility model discloses, through make sampling pipe with helical downhole form and insert the coal heap, and the loss of this mode sampling head is relatively smaller, can improve the service life of sampling head and sampling mechanical arm.

Description

Technical Field

[0001] This utility model relates to the technical field of coal sample collection equipment, and in particular to a coal sample collection device. Background Technology

[0002] Before coal trucks enter the power plant, coal samples need to be collected. The current automated collection method is as follows: the truck moves to a designated location and stops, then a sampling robotic arm moves above the truck with a sampling head, inserts the sampling head into the truck, and begins sampling after it reaches a designated depth. The sampling robotic arm then transports the sampled coal to a coal sample transfer device, which then transfers it to the subsequent coal sample processing equipment.

[0003] However, the sampling head in the aforementioned automated sampling device encounters significant resistance when inserted into the coal pile. The traditional method uses vibration to facilitate insertion, but this causes considerable wear and tear on the sampling head, making it less durable. Furthermore, the use of a vibration motor keeps the sampling robotic arm in a state of constant vibration, affecting its lifespan. Therefore, there is room for improvement, and a coal sample sampling device is proposed to address these issues. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings by providing a coal sample sampling device.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: a coal sample sampling device, including an installation plate for installation and connection with a sampling robotic arm and a sampling tube rotatably mounted on the installation plate. The outer side of the sampling tube is provided with a spiral blade. The installation plate is provided with a power component for driving the sampling tube to rotate. The sampling tube extends into the coal pile in a spiral upward and spiral downward manner.

[0006] The bottom of the sampling tube is pointed, and there are sampling ports on both sides of the pointed shape for coal samples to enter. A sealing component is provided to open and close the sampling ports. The coal sample is stored in the sampling tube and transferred to the coal sample transfer equipment by the driving of the sampling robotic arm.

[0007] Furthermore, the sampling tube is equipped with an auger inside, the top of which is rotatably mounted on the mounting plate, and the bottom of which extends to the sampling port. It also includes a transmission assembly for driving the auger to rotate, thereby causing the coal sample inside the sampling tube to rise and fall.

[0008] Furthermore, the power assembly includes a drive wheel, a power component that drives the drive wheel to rotate, a transmission wheel disposed outside the sampling tube, and a transmission belt that passes around the drive wheel and the transmission wheel and drives the transmission wheel to rotate synchronously.

[0009] Furthermore, the transmission assembly includes an internal gear ring disposed at the top of the sampling tube, a gear disposed at the position corresponding to the internal gear ring at the top of the auger, an idler gear meshing between the gear and the internal gear ring, the idler gear being rotatably mounted on the mounting plate, and the idler gear meshing with the gear and the internal gear ring respectively.

[0010] Furthermore, the sampling tube is generally cone-shaped, wider at the top and narrower at the bottom, and the auger is also generally cone-shaped, wider at the top and narrower at the bottom.

[0011] The mounting plate is also equipped with a lifting device for moving the entire auger up and down inside the sampling tube.

[0012] Furthermore, the mounting plate includes two spaced-apart plates connected together by a connecting column. The lifting device includes a lifting plate located between the two plates. The end of the auger is rotatably mounted on the lifting plate. A telescopic unit is provided at the bottom of the mounting plate. The telescopic end of the telescopic unit passes through one of the plates and connects to the lifting plate, thereby driving the lifting plate to move up and down.

[0013] Furthermore, the spiral blades on the auger and the sampling tube rotate in opposite directions, and the rotation directions of the auger and the sampling tube are also opposite.

[0014] Furthermore, the sealing assembly includes a sealing plate for sealing the sampling port, the sealing plate being slidably disposed inside the sampling tube, a rotating block being rotatably disposed on the inner bottom of the sampling tube, the bottom of the sealing plate being connected to the rotating block and rotating together with the rotating block;

[0015] A through hole is provided in the middle of the rotating block. A guide rod fixedly connected to the sampling tube is vertically arranged in the through hole. A spiral guide groove (not shown in the figure) is provided on the guide rod. A sleeve is sleeved on the outside of the guide rod. A guide block (not shown in the figure) is provided on the sleeve and slides with the spiral guide groove. A spring is also provided between the sleeve and the guide rod. The spring is used to push the sleeve to move away from the guide rod. The sleeve can only move up and down relative to the rotating block and can drive the rotating block to rotate. A rotating plate is rotatably arranged on the side of the sleeve away from the guide rod. The rotating plate is used to abut against the bottom of the auger.

[0016] When the auger is in operation, the bottom of the auger contacts the rotating plate and pushes the sleeve downward, causing the sleeve to rotate. The rotating sleeve drives the rotating block to rotate, causing the sealing plate to shift and releasing the seal on the sampling port.

[0017] The beneficial effects of this utility model are reflected in:

[0018] This invention inserts the sampling tube into the coal pile in a spiral drilling manner, which reduces the wear and tear on the sampling head and improves the service life of the sampling head and the sampling robotic arm. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention;

[0020] Figure 2 This is a cross-sectional view of the present invention;

[0021] Figure 3 for Figure 2 Enlarged view at point A in the middle;

[0022] Figure 4 This is a schematic diagram of the sealing component described in this utility model.

[0023] In the picture:

[0024] 1. Mounting plate;

[0025] 2. Sampling tube; 21. Spiral blade; 22. Sampling port;

[0026] 3. Power assembly; 31. Drive pulley; 32. Power component; 33. Transmission pulley; 34. Transmission belt;

[0027] 4. Sealing assembly; 41. Sealing plate; 42. Rotating block; 43. Guide rod; 44. Sleeve; 45. Spring; 46. Rotating plate;

[0028] 5. Screwdriver; 51. Gear;

[0029] 6. Transmission components; 61. Internal gear ring; 62. Idler gear;

[0030] 7. Lifting device; 71. Lifting plate; 72. Telescopic unit. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, and not all of them. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present utility model.

[0032] Please see Figure 1-4 This utility model discloses a coal sample sampling device, including an installation plate 1 for mounting and connecting with a sampling robotic arm and a sampling tube 2 rotatably mounted on the installation plate 1. The outer side of the sampling tube 2 is provided with a spiral blade 21. The installation plate 1 is provided with a power component 3 for driving the sampling tube 2 to rotate. The sampling tube 2 extends into the coal pile in a spiral upward and spiral downward manner.

[0033] The bottom of the sampling tube 2 is pointed, and there are sampling ports 22 on both sides of the pointed shape for coal samples to enter. A sealing component 4 is provided to open and close the sampling ports 22. The coal sample is stored through the sampling tube 2 and transferred to the coal sample transfer equipment by the driving of the sampling robotic arm.

[0034] In practice, the mounting plate 1 is connected to the sampling robotic arm. The sampling robotic arm moves the sampling tube 2 to perform sampling. During sampling, the power component 3 drives the sampling tube 2 to rotate while the sampling robotic arm moves the sampling tube 2 downward. Since the bottom of the sampling tube 2 is pointed, it extends into the coal pile on the truck in a spiral drilling manner. Due to the use of the spiral blades 21, they simultaneously "displace coal" and "generate a downward force" during rotation, helping the sampling tube 2 to move downward more effectively. Thus, the downward thrust load of the sampling robotic arm is set... The sampler doesn't need to be designed to be so large, and the vibration motor is also eliminated. After it extends downward to the designated depth, the sealing component 4 is opened, and then the sampling tube 2 is rotated. The coal sample will enter the sampling tube 2 through the sampling port 22. After sampling is completed, the sealing component 4 can be closed, and then the sampling tube 2 is reversed (this makes it easier to pull out the sampling tube 2). After the sampling tube 2 is pulled out, the sampling robotic arm moves the sampling tube 2 to the entrance of the coal sample transmission equipment. The sealing component 4 is opened again, the sampling port 22 is opened, and the coal sample falls from the sampling port 22, completing the collection of the coal sample.

[0035] In this invention, the sampling tube 2 is inserted into the coal pile in the form of a spiral drilling. This method results in relatively less wear on the sampling head and can improve the service life of the sampling head and the sampling robotic arm.

[0036] Preferably, since this application does not involve improvements to the sampling robotic arm, and the specific structure of the sampling robotic arm is common knowledge to those skilled in the art (similar to the structure of a cross slide), the specific structure of the sampling robotic arm will not be described in detail here.

[0037] In one embodiment, the sampling tube 2 is equipped with an auger 5 inside. The top of the auger 5 is rotatably mounted on the mounting plate 1, and the bottom end of the auger 5 extends to the sampling port 22. A transmission assembly 6 is also included to drive the auger 5 to rotate, causing the coal sample inside the sampling tube 2 to rise and fall. This design increases the amount of coal that can be collected in a single sampling tube 2, allowing the coal sample to be vertically piled inside. During discharge, reversing the auger 5 pushes the coal sample out of the sampling port 22, accelerating the discharge process.

[0038] In one embodiment, the power assembly 3 includes a drive wheel 31, a power component 32 that drives the drive wheel 31 to rotate, a transmission wheel 33 disposed outside the sampling tube 2, and a transmission belt 34 that passes around the drive wheel 31 and the transmission wheel 33 and drives the transmission wheel 33 to rotate synchronously.

[0039] In specific implementation, the power component 32 can be a motor, the drive wheel 31 is mounted on the output shaft of the motor, and the drive wheel 31 and the transmission wheel 33 can be sprockets, synchronous pulleys, belt pulleys, etc., and the transmission belt 34 can be a transmission chain, synchronous belt, belt, etc. The drive wheel 33 rotates through the drive component 32, and the transmission wheel 33 drives the sampling tube 2 to rotate synchronously.

[0040] In one embodiment, the transmission assembly 6 includes an internal gear ring 61 disposed at the top of the sampling tube 2. A gear 51 is disposed at the top of the auger 5 at a position corresponding to the internal gear ring 61. An idler gear 62 meshes with the internal gear ring 61. The idler gear 62 is rotatably mounted on the mounting plate 1 and meshes with both the gear 51 and the internal gear ring 61. With this design, when the sampling tube 2 rotates, the auger 5 is driven to rotate synchronously through the transmission of the internal gear ring 61 and the idler gear 62, eliminating the need for a separate power source.

[0041] In one embodiment, the sampling tube 2 is generally cone-shaped, with a larger top and a smaller bottom, and the auger 5 is also generally cone-shaped, with a larger top and a smaller bottom.

[0042] The mounting plate 1 is also equipped with a lifting device 7, which is used to move the entire auger 5 up and down inside the sampling tube 2.

[0043] In practice, the conical sampling tube 2 is easier to insert into the coal pile. On the other hand, since the coal pile in the truck is not dense enough, by designing the sampling tube 2 in a conical shape, the spiral blades 21 on the sampling tube 2 can more easily gain force during the downward movement of the sampling tube 2, so that the downward force generated when the sampling tube 2 rotates is greater and it is easier to penetrate to a sufficient depth. Furthermore, by making the auger 5 also conical in shape, wider at the top and narrower at the bottom, and able to move up and down inside the sampling tube 2 under the drive of the lifting device 7, when the auger 5 gets stuck, the gap between the auger 5 and the inner wall of the sampling tube 2 can be increased by moving the auger 5 upward, thus solving the problem of the auger 5 getting stuck. This achieves multiple benefits in one fell swoop.

[0044] In one embodiment, the mounting plate 1 includes two plates spaced apart, which are connected together by a connecting column. The lifting device 7 includes a lifting plate 71 located between the two plates. The end of the auger 5 is rotatably mounted on the lifting plate 71. A telescopic unit 72 is provided at the bottom of the mounting plate 1. The telescopic end of the telescopic unit 72 passes through one of the plates and connects to the lifting plate 71, thereby driving the lifting plate 71 to move up and down.

[0045] In specific implementation, the telescopic unit 72 can be selected from existing electric telescopic rods, pneumatic telescopic rods, or hydraulic telescopic rods. Setting the telescopic unit 72 at the bottom of the mounting plate 1 can make the structure more compact. At the same time, of the two plates, the upper plate is used to connect with the sampling robotic arm.

[0046] In one embodiment, the auger 5 rotates in the opposite direction to the spiral blades 21 on the sampling tube 2, and the rotation direction of the auger 5 is also opposite to that of the sampling tube 2. This design can accelerate the movement of the coal sample within the sampling tube 2 and accelerate the discharge of the coal sample.

[0047] In one embodiment, the sealing assembly 4 includes a sealing plate 41 for sealing the sampling port 22. The sealing plate 41 is slidably disposed inside the sampling tube 2. A rotating block 42 is rotatably disposed on the bottom inner side of the sampling tube 2. The bottom of the sealing plate 41 is connected to the rotating block 42 and rotates together with the rotating block 42.

[0048] The rotating block 42 has a through hole in the middle. A guide rod 43, which is fixedly connected to the sampling tube 2, is vertically installed in the through hole. The guide rod 43 has a spiral guide groove (not shown in the figure). A sleeve 44 is sleeved on the outside of the guide rod 43. A guide block (not shown in the figure) is provided on the sleeve 44 and slides with the spiral guide groove. A spring 45 is also provided between the sleeve 44 and the guide rod 43. The spring 45 is used to push the sleeve 44 to move away from the guide rod 43. The sleeve 44 can only move up and down relative to the rotating block 42 and can drive the rotating block 42 to rotate. A rotating plate 46 is rotatably installed on the side of the sleeve 44 away from the guide rod 43. The rotating plate 46 is used to abut against the bottom of the auger 5.

[0049] When the auger 5 is in operation, the bottom of the auger 5 contacts the rotating plate 46 and pushes the sleeve 44 downward, causing the sleeve 44 to rotate. The rotating sleeve 44 drives the rotating block 42 to rotate, causing the sealing plate 41 to shift and release the seal on the sampling port 22.

[0050] In practice, before the sampling tube 2 reaches the designated depth, the lifting device 7 drives the auger 5 to move upward. At this time, the auger 5 does not rotate. After the sampling tube 2 reaches the designated depth, the lifting device 7 drives the auger 5 to move downward. The gear 51 on the auger 5 meshes with the idler wheel 62, and the auger 5 begins to rotate. At the same time, the bottom of the auger 5 contacts the rotating plate 46 and pushes the sleeve 44 downward, causing the sleeve 44 to rotate. The rotating sleeve 44 drives the rotating block 42 to rotate, causing the sealing plate 41 to shift and release the seal on the sampling port 22. After sampling is completed, the lifting device 7 drives the auger 5 to move upward. Then, under the push of the spring 45, the sleeve 44 drives the rotating block 42 to rotate, causing the sealing plate 41 to shift and reseal the sampling port 22.

[0051] It should be noted that there are many specific structures for the "sleeve 44 can only move up and down relative to the rotating block 42 and can drive the rotating block 42 to rotate". For example, the sleeve 44 can be designed as a polygonal structure; or a vertical guide groove can be opened on the rotating block 42 and a vertical guide block can be set on the sleeve 44 to achieve the same effect.

[0052] Preferably, the top of the corresponding sealing plate 41 of the sampling tube 2 is provided with an annular guide rail, and the top of the sealing plate 41 is provided with a limiting rod extending into the annular guide rail. The limiting rod can slide relative to the annular guide rail to limit the movement trajectory of the sealing plate 41. A spring 45 can be provided in the annular guide rail to assist in pushing the sealing plate 41 to reset.

[0053] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0054] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0055] Additionally, "multiple" refers to two or more.

[0056] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coal sample sampling device, characterized by: It includes a mounting plate (1) for mounting and connecting with a sampling robotic arm and a sampling tube (2) rotatably mounted on the mounting plate (1). The outer side of the sampling tube (2) is provided with a spiral blade (21). The mounting plate (1) is provided with a power assembly (3) for driving the sampling tube (2) to rotate. The sampling tube (2) extends into the coal pile in a spiral upward and spiral downward manner. The bottom of the sampling tube (2) is pointed, and the two sides of the pointed tube have sampling ports (22) for coal samples to enter. A sealing component (4) is provided to open and close the sampling ports (22). The coal sample is stored through the sampling tube (2) and transferred to the coal sample transmission equipment under the drive of the sampling robotic arm.

2. The coal sample sampling device according to claim 1, characterized in that: The sampling tube (2) is equipped with an auger (5) inside. The top of the auger (5) is rotatably mounted on the mounting plate (1). The bottom end of the auger (5) extends to the sampling port (22). It also includes a transmission component (6) for driving the auger (5) to rotate, thereby causing the coal sample inside the sampling tube (2) to rise and fall.

3. The coal sample sampling device according to claim 1 or 2, characterized in that: The power assembly (3) includes a drive wheel (31), a power component (32) that drives the drive wheel (31) to rotate, a transmission wheel (33) disposed outside the sampling tube (2), and a transmission belt (34) that passes around the drive wheel (31) and the transmission wheel (33) and drives the transmission wheel (33) to rotate synchronously.

4. The coal sample sampling device of claim 2, wherein: The transmission assembly (6) includes an internal gear ring (61) disposed at the top of the sampling tube (2). A gear (51) is disposed at the position of the internal gear ring (61) at the top of the auger (5). An idler wheel (62) meshes between the gear (51) and the internal gear ring (61). The idler wheel (62) is rotatably mounted on the mounting plate (1). The idler wheel (62) rotatably meshes with the gear (51) and the internal gear ring (61) respectively.

5. The coal sample sampling device of claim 2, wherein: The sampling tube (2) is generally cone-shaped with a larger top and a smaller bottom, and the auger (5) is also generally cone-shaped with a larger top and a smaller bottom. The mounting plate (1) is also equipped with a lifting device (7) for moving the auger (5) up and down inside the sampling tube (2).

6. The coal sample sampling device of claim 5, wherein: The mounting plate (1) includes two plates spaced apart, which are connected together by a connecting column. The lifting device (7) includes a lifting plate (71) located between the two plates. The end of the auger (5) is rotatably mounted on the lifting plate (71). A telescopic unit (72) is provided at the bottom of the mounting plate (1). The telescopic end of the telescopic unit (72) passes through one of the plates and connects to the lifting plate (71), thereby driving the lifting plate (71) to move up and down.

7. The coal sample sampling device of claim 2, wherein: The screw conveyor (5) and the spiral blades (21) on the sampling tube (2) rotate in opposite directions, and the rotation directions of the screw conveyor (5) and the sampling tube (2) are also opposite.

8. The coal sample sampling device of claim 5, wherein: The sealing assembly (4) includes a sealing plate (41) for sealing the sampling port (22). The sealing plate (41) is slidably disposed inside the sampling tube (2). A rotating block (42) is rotatably disposed on the bottom inner side of the sampling tube (2). The bottom of the sealing plate (41) is connected to the rotating block (42) and rotates together with the rotating block (42). The rotating block (42) has a through hole in the middle. A guide rod (43) fixedly connected to the sampling tube (2) is vertically arranged in the through hole. A spiral guide groove is provided on the guide rod (43). A sleeve (44) is sleeved on the outside of the guide rod (43). A guide block that slides with the spiral guide groove is provided on the sleeve (44). A spring (45) is also provided between the sleeve (44) and the guide rod (43). The spring (45) is used to push the sleeve (44) to move away from the guide rod (43). The sleeve (44) can only move up and down relative to the rotating block (42) and can drive the rotating block (42) to rotate. A rotating plate (46) is rotatably arranged on the side of the sleeve (44) away from the guide rod (43). The rotating plate (46) is used to abut against the bottom of the auger (5). When the auger (5) is in working condition, the bottom of the auger (5) contacts the rotating plate (46) and pushes the sleeve (44) to move downward, causing the sleeve (44) to rotate. The rotating sleeve (44) drives the rotating block (42) to rotate, causing the sealing plate (41) to shift and release the seal on the sampling port (22).

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