A coal sampling machine

Abstract

The utility model relates to sampling equipment technical field, concretely relates to a coal sampling machine for sampling coal on the conveying belt, including shell, driving motor, sampling part, the sampling part includes fixed frame and sampling frame, the driving motor can drive sampling frame rotates around first axis, to realize position switching between material taking position and material falling position, when sampling frame is at material taking position, the material taking mouth stretches out from the opening, and when sampling frame moves from the opening left and right direction one side to the other side, the coal can enter the material cavity from the material taking mouth, wherein, first axis extends along the front and back direction, when sampling frame is at material falling position, the coal can enter the material cavity from the material outlet, greatly improved the automation degree of sampling, reduced manual intervention and manpower cost.

Description

Technical Field

[0001] This utility model relates to the field of sampling equipment technology, specifically a coal sampling machine. Background Technology

[0002] Coal sampling is the process of taking a representative portion of coal from a whole batch for testing or inspection, in accordance with regulations. During the transport of coal by belt conveyor, it is necessary to sample the coal on the conveyor belt at regular intervals and in fixed quantities. The traditional sampling method involves manual sampling using a shovel at regular intervals, which is labor-intensive and inefficient. Utility Model Content

[0003] This utility model provides a coal sampling machine that uses a drive motor to automatically sample materials transported by a belt conveyor, thereby improving the automation and efficiency of sampling and reducing labor costs.

[0004] This utility model provides the following technical solution: a coal sampling machine for sampling coal on a conveyor belt, comprising: a shell, a drive motor, and a sampling part;

[0005] The outer shell is used to fix it above the conveyor belt. The outer shell has a material collection chamber. The bottom of the outer shell has a sampling notch that extends through the front and rear sides and is used for the conveyor belt to pass through. The outer shell has an opening that connects to the material collection chamber at the position corresponding to the sampling notch.

[0006] The drive motor is mounted on the housing. The sampling part includes a fixing frame and a sampling frame. The fixing frame is mounted on the power output end of the drive motor. The sampling frame is connected to the bottom of the fixing frame. The sampling frame has a material receiving cavity. The left and right sides of the sampling frame are respectively provided with a material receiving port and a material discharge port that communicate with the material receiving cavity.

[0007] The drive motor can drive the sampling frame to rotate around the first axis to achieve position switching between the material taking position and the material dropping position. When the sampling frame is in the material taking position, the material taking port extends from the opening, and when the sampling frame rotates from the material taking position to the material dropping position, the coal can enter the material receiving cavity from the material taking port; when the sampling frame is in the material dropping position, the coal can enter the material collecting cavity from the material discharging port; wherein, the first axis extends in the front-back direction.

[0008] Preferably, the bottom surface of the sampling frame is an arc centered on the first axis.

[0009] Preferably, a scraper is provided along the bottom side of the feed inlet.

[0010] Preferably, the scraper is a rubber component.

[0011] Preferably, the scraper is detachably connected to the sampling frame.

[0012] Preferably, the thickness of the scraper gradually decreases from the side near the feed inlet to the side away from the feed inlet.

[0013] Preferably, the sampling unit further includes a buffer assembly, which includes a slide rod and an elastic element. One end of the slide rod is fixedly connected to the sampling frame, and the other end is slidably connected to the fixing frame. The slide rod can slide radially relative to the fixing frame along the first axis. The elastic element connects the fixing frame and the sampling frame.

[0014] Preferably, the number of buffer components is at least two, and the plurality of buffer components are arranged circumferentially spaced along the first axis;

[0015] The elastic element is a spring, which is sleeved on the outer periphery of the slide rod, and its two ends respectively abut against the fixing frame and the sampling frame.

[0016] Preferably, a guide plate is provided along the top side of the discharge port, one end of the guide plate is fixedly connected to the sampling frame, and the guide plate gradually tilts from top to bottom toward the side away from the sampling frame.

[0017] Preferably, the bottom of the outer shell is provided with a discharge port, and the discharge port is in communication with the material collection chamber.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] Driven by a motor, the sampling unit rotates, and the sampling frame can automatically sample coal transported by the belt. Coal enters the sampling frame from the feed port, and when the sampling frame rotates to the top of the collection chamber, the coal flows out from the discharge port into the collection chamber, which greatly improves the automation level of sampling and reduces manual intervention and labor costs. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the coal sampler of this utility model;

[0021] Figure 2 This is a right view of the coal sampling machine of this utility model;

[0022] Figure 3 yes Figure 2 A schematic diagram of the cross-sectional structure of AA;

[0023] Figure 4 This is a schematic diagram of the sampling frame of this utility model at the material sampling position;

[0024] Figure 5This is a schematic diagram of the sampling frame of this utility model at the material dropping position;

[0025] Figure 6 yes Figure 3 A magnified structural diagram of section B.

[0026] In the picture:

[0027] 1. Outer shell; 11. Collection chamber; 12. Sampling notch; 13. Opening; 14. Discharge port; 2. Drive motor; 3. Sampling section; 31. Fixing frame; 32. Sampling frame; 321. Material receiving chamber; 322. Material taking port; 323. Material discharge port; 324. Scraper; 325. Guide plate; 33. Buffer assembly; 331. Slide rod; 332. Elastic element. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0029] In the description of the embodiments of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0030] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a replaceable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0031] Combination Figure 1-6As shown, a coal sampling machine is used to sample coal on a conveyor belt, comprising: a housing 1, a drive motor 2, and a sampling unit 3; the housing 1 is fixed above the conveyor belt by a frame 31, and has a collection chamber 11 inside the housing 1; the bottom of the housing 1 has a sampling notch 12 extending through both the front and rear sides for the conveyor belt to pass through; the housing 1 has an opening 13 corresponding to the sampling notch 12, communicating with the collection chamber 11; the drive motor 2 is mounted on the housing 1; the sampling unit 3 includes a frame 31 and a sampling frame 32; the frame 31 is mounted on the power output end of the drive motor 2; the sampling frame 32 is connected to the bottom of the frame 31; and the sampling frame 32 contains... The sampling frame 32 has a material receiving chamber 321, and the left and right sides of the sampling frame 32 are respectively provided with a material receiving port 322 and a material discharge port 323 that are connected to the material receiving chamber 321. The drive motor 2 can drive the sampling frame 32 to rotate around a first axis to realize the position switching between the material receiving position and the material discharge position. When the sampling frame 32 is in the material receiving position, the material receiving port 322 extends out from the opening 13, and when the sampling frame 32 rotates from the material receiving position to the material discharge position, the coal can enter the material receiving chamber 321 from the material receiving port 322. When the sampling frame 32 is in the material discharge position, the coal can enter the material collecting chamber 11 from the material discharge port 323. The first axis extends in the front-back direction.

[0032] When using a coal sampler, the outer casing 1 is positioned directly above the conveyor belt. The speed of the conveyor belt and the drive speed of the drive motor 2 are adjusted according to the required sampling time or quantity. After starting the drive motor 2, the sampling frame 32 rotates around the first axis. When the sampling frame 32 extends beyond the sampling notch 12, it contacts the top of the conveyor belt and collects coal. As the coal rotates with the sampling frame 32 to the top of the collection chamber 11, it falls from the outlet 323 into the collection chamber 11. The sampling frame 32 continues to rotate, repeating the above process to collect samples from the conveyor belt according to preset values. After sampling, the samples can be collected in the collection chamber 11. Using a coal sampler significantly reduces labor costs. Compared to manual sampling, the mechanized sampling process reduces the degree of human intervention and can improve sampling efficiency by increasing the conveyor belt speed and the sampling speed of the sampling frame 32.

[0033] Furthermore, the bottom surface of the sampling frame 32 is an arc shape with the first axis as its center. This is beneficial for ensuring that the sampling frame 32 completely passes over the belt after contacting it, and for ensuring that the material stays in the material receiving cavity 321 after sampling, thus preventing the material from falling directly from the discharge port 323 onto the belt.

[0034] In order to better scrape the coal on the conveyor belt into the material receiving chamber 321, a scraper 324 is further provided along the bottom side of the material receiving port 322.

[0035] Furthermore, the scraper 324 is a rubber component. The rubber component is elastic, which prevents the scraper 324 from damaging the belt during sampling.

[0036] Furthermore, the scraper 324 is detachably connected to the sampling frame 32. This facilitates the replacement and maintenance of the scraper 324. In some embodiments, one end of the scraper 324 is provided with a T-shaped connecting block, and one end of the bottom surface of the sampling frame 32 is provided with a T-shaped groove. The T-shaped connecting block slides along the conveying direction of the belt until it engages with the T-shaped groove, so that the scraper 324 can rotate with the sampling frame 32 without falling off, and is easy to assemble and disassemble.

[0037] Furthermore, the thickness of the scraper 324 gradually decreases from the side near the feed inlet 322 to the side away from the feed inlet 322. During sampling, the protruding end of the scraper 324 can extend into the space between the coal and the conveyor belt. As the sampling frame 32 rotates, the scraper 324 can accurately scrape the coal into the material receiving chamber 321.

[0038] Furthermore, the sampling unit 3 also includes a buffer assembly 33, which includes a slide rod 331 and an elastic element 332. One end of the slide rod 331 is fixedly connected to the sampling frame 32, and the other end is slidably connected to the fixing frame 31. The slide rod 331 can slide radially relative to the fixing frame 31 along the first axis. The elastic element 332 connects the fixing frame 31 and the sampling frame 32.

[0039] When the sampling frame 32 rotates to contact the belt, the spacing between the sampling frame 32, the fixed frame 31, and the belt can be automatically adjusted due to the sliding connection between the buffer component 33 and the fixed frame 31. This ensures that the sampling frame 32 passes completely over the belt and completes the sampling, effectively preventing the sampling frame 32 from damaging the belt.

[0040] Furthermore, the number of buffer components 33 is at least two, and the plurality of buffer components 33 are arranged circumferentially at intervals along the first axis; the elastic element 332 is a spring, the spring is sleeved on the outer periphery of the slide rod 331, and its two ends respectively abut against the fixing frame 31 and the sampling frame 32.

[0041] In some embodiments, the side of the fixing frame 31 near the sampling frame 32 and the top surface of the sampling frame 32 are respectively arc-shaped with the first axis as the axis. The sliding rod 331 passes through the bottom of the fixing frame 31. The lengths of the sliding rods 331 are all equal. One end of the sliding rod 331 is provided with a stop block, and the stop block is located inside the fixing frame 31 to prevent the sliding rod 331 from sliding out of the fixing frame 31. During the rotation of the sampling frame 32, the sliding rod 331 can be affected by external force to move closer to or further away from the fixing frame 31, thereby realizing the automatic adjustment of the distance between the sampling frame 32 and the belt. When the sliding rod 331 moves further closer to the fixing frame 31, the spring can provide a buffering effect to prevent the sampling frame 32 from damaging the fixing frame 31.

[0042] Furthermore, a guide plate 325 is provided along the top side of the discharge port 323. One end of the guide plate 325 is fixedly connected to the sampling frame 32, and the guide plate 325 gradually tilts from top to bottom toward the side away from the sampling frame 32. When coal slides out of the discharge port 323, it will fall onto the guide plate 325, which guides the coal so that it will fall accurately into the collection chamber 11.

[0043] Furthermore, the bottom of the outer shell 1 is provided with a discharge port 14, and the discharge port 14 is connected to the collection chamber 11. After sampling is completed, the collected coal sample can be taken out from the discharge port 14.

[0044] Based on the disclosure and teachings of the foregoing specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this application is not limited to the specific embodiments disclosed and described above, and some modifications and changes to this application should also fall within the protection scope of the claims of this application. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this application.

Claims

1. A coal sampling machine for sampling coal on a conveyor belt, characterized in that, include: Housing, drive motor, sampling unit; The outer shell is used to fix it above the conveyor belt. The outer shell has a material collection chamber. The bottom of the outer shell has a sampling notch that extends through the front and rear sides and is used for the conveyor belt to pass through. The outer shell has an opening that connects to the material collection chamber at the position corresponding to the sampling notch. The drive motor is mounted on the housing. The sampling part includes a fixing frame and a sampling frame. The fixing frame is mounted on the power output end of the drive motor. The sampling frame is connected to the bottom of the fixing frame. The sampling frame has a material receiving cavity. The left and right sides of the sampling frame are respectively provided with a material receiving port and a material discharge port that communicate with the material receiving cavity. The drive motor can drive the sampling frame to rotate around the first axis to achieve position switching between the material taking position and the material dropping position. When the sampling frame is in the material taking position, the material taking port extends from the opening, and when the sampling frame rotates from the material taking position to the material dropping position, the coal can enter the material receiving cavity from the material taking port; when the sampling frame is in the material dropping position, the coal can enter the material collecting cavity from the material discharging port; wherein, the first axis extends in the front-back direction.

2. The coal sampling machine as described in claim 1, characterized in that, The bottom surface of the sampling frame is an arc centered on the first axis.

3. The coal sampler as described in claim 1, characterized in that, A scraper is provided along the bottom side of the material inlet.

4. The coal sampling machine as described in claim 3, characterized in that, The scraper is a rubber component.

5. The coal sampler as described in claim 3, characterized in that, The scraper is detachably connected to the sampling frame.

6. The coal sampler as described in claim 3, characterized in that, The thickness of the scraper gradually decreases from the side near the feed inlet to the side away from the feed inlet.

7. The coal sampler as described in claim 1, characterized in that, The sampling unit further includes a buffer assembly, which includes a slide rod and an elastic element. One end of the slide rod is fixedly connected to the sampling frame, and the other end is slidably connected to the fixing frame. The slide rod can slide radially relative to the fixing frame along the first axis. The elastic element connects the fixing frame and the sampling frame.

8. The coal sampler as described in claim 7, characterized in that, The number of buffer components is at least two, and the plurality of buffer components are arranged circumferentially spaced along the first axis; The elastic element is a spring, which is sleeved on the outer periphery of the slide rod, and its two ends respectively abut against the fixing frame and the sampling frame.

9. The coal sampler as described in claim 1, characterized in that, A guide plate is provided along the top side of the discharge port. One end of the guide plate is fixedly connected to the sampling frame, and the guide plate gradually tilts from top to bottom toward the side away from the sampling frame.

10. The coal sampler as described in claim 1, characterized in that, The bottom of the outer shell has a discharge port, and the discharge port is connected to the material collection chamber.

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