Automatic sampling device of coal yield detection system

Abstract

The utility model relates to the technical field of coal mining and detection, in particular to an automatic sampling device of a coal yield detection system, which comprises a fixed frame, a support plate fixedly arranged at the upper end of the fixed frame, a lifting bottom plate arranged on the upper side of the support plate, and two groups of vertical plates vertically, symmetrically and fixedly arranged on the upper side of the lifting bottom plate, a sliding frame capable of being adjusted in a sliding mode is clamped on the upper side of each set of vertical plates, a sampling tray is arranged between the two sets of vertical plates, lug plates are fixedly arranged on the front side and the rear side of the sampling tray, rack plates are fixedly arranged at the bottoms of the sliding frames, driven gears are arranged on the outer sides of the two sets of vertical plates, a servo motor is installed on the front side of the lifting bottom plate, and a driving gear is assembled at the output end of the servo motor. Electric push rods are arranged on the outer sides of the two sliding frames. The coal sampling device can automatically receive coal discharged after detection and transfer the coal into the storage box for temporary storage, manual operation is not needed, the sampling efficiency is high, the automation degree is high, meanwhile, the lifting function is achieved, and the coal sampling device can adapt to the heights of different coal yield detection devices.

Description

Technical Field

[0001] This utility model relates to the field of coal mining and testing technology, and more specifically, to an automatic sampling device for a coal yield testing system. Background Technology

[0002] Coal is an important fossil fuel, mainly composed of elements such as carbon, hydrogen, oxygen, nitrogen, and sulfur. Among them, carbon, hydrogen, and oxygen are the main components of coal's organic matter, accounting for more than 95%. Coal is one of the most abundant and widely distributed fossil fuels on Earth, and is known as "black gold."

[0003] In coal mining and processing, coal yield is a crucial indicator, reflecting the efficiency of the process. Accurate measurement of coal yield typically requires specialized testing equipment to sample and analyze the coal. However, existing coal yield testing devices cannot automatically collect and transfer the coal discharged after testing, requiring manual operation and resulting in low efficiency. Therefore, there is an urgent need for a device capable of automatically sampling, transferring, and storing the coal discharged after testing. Utility Model Content

[0004] To address the shortcomings of existing methods, the purpose of this utility model is to provide an automatic sampling device for a coal yield detection system, which can automatically collect the coal discharged after detection and transfer it to a storage bin for temporary storage.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] An automatic sampling device for a coal yield detection system includes a fixed frame and a sampling tray for receiving coal. The fixed frame is welded from multiple sets of square tubes, with a base plate fixed at its bottom and a support plate fixed at its upper end. A lifting base plate is provided on the upper side of the support plate, and two sets of upright plates are vertically and symmetrically fixed on the upper side of the lifting base plate. Each set of upright plates has a slidably adjustable sliding frame attached to its upper side. The sampling tray is positioned between the two sets of upright plates, with both sides of the sampling tray resting on the sliding frame. Ear plates are fixed on the front and rear sides of the sampling tray, and a rack plate is fixed at the bottom of the sliding frame. Both sets of vertical plates are equipped with driven gears on their outer sides. The two sets of driven gears are connected by a rotating shaft, and the driven gears are meshed with a rack plate for transmission. A servo motor is installed on the front side of the lifting base plate. A drive gear is mounted on the output end of the servo motor, and the drive gear is meshed with the driven gear for transmission. Both sets of sliding frames are equipped with electric push rods on their outer sides. The lower end of the electric push rod is hinged to the sliding frame, and its upper end is hinged to the ear plate on the sampling tray. A bushing is fixed on the left end face of the sampling tray. A pin is inserted inside the bushing, and the two ends of the pin are respectively fixedly connected to the two sets of vertical plates.

[0007] Furthermore, an electric scissor lift platform is provided between the lifting base plate and the support plate. The bottom of the electric scissor lift platform is fixedly connected to the support plate, and its top is fixedly connected to the lifting base plate.

[0008] Furthermore, a limiting slide rail is fixedly provided on the upper surface of the upright plate, and a limiting slider adapted to the limiting slide rail is installed on the inner bottom surface of the sliding frame near the left end. The limiting slider is connected to the limiting slide rail.

[0009] Furthermore, a storage box is placed on the chassis inside the fixed frame, and a hopper is fixedly connected to the left end of the two sets of upright plates. A slot for receiving materials is opened on the right side of the hopper. The bottom of the hopper has a conical structure and is connected to a telescopic conveying hose. The lower end of the telescopic conveying hose is stuck inside the fixed frame and located directly above the storage box.

[0010] Furthermore, a rubber pad is attached to the upper surface of the sliding frame.

[0011] Furthermore, the chassis is equipped with swivel casters near the four corners at the bottom.

[0012] Compared with the prior art, the present invention has the following beneficial effects:

[0013] 1. This utility model features a retractable and movable sampling tray that can move to the discharge port of the coal yield detection device, automatically collecting the coal discharged after detection. This enables automatic sampling and collection of coal, and allows it to be transferred to a storage bin for temporary storage. No manual operation is required, resulting in high sampling efficiency and a high degree of automation.

[0014] 2. This utility model uses a hopper to collect coal samples poured from a sampling tray and then conveys the coal samples along a telescopic conveying hose to a storage box below. The storage box is placed on a base inside a fixed frame to store the coal falling from the hopper. The storage box can be removed from the base for easy cleaning when full.

[0015] 3. In this utility model, an electric scissor lift platform is provided between the lifting base plate and the support plate. The bottom of the electric scissor lift platform is fixedly connected to the support plate, and its top is fixedly connected to the lifting base plate, enabling the device to have a lifting function and adapt to the height of different coal yield detection devices. Through the connection between the electric scissor lift platform and the support plate, the lifting mechanism achieves vertical lifting movement, allowing the sampling tray to be easily adjusted in height to accommodate coal yield detection devices of different heights. This allows the sampling tray to be smoothly moved below the discharge port for coal sampling and collection.

[0016] 4. In this utility model, the limiting slide rail is fixed to the upper surface of the upright plate, providing a fixed sliding track for the sliding frame. The limiting slider is installed on the inner bottom surface of the sliding frame and is adapted to the limiting slide rail, ensuring that the sliding frame can maintain a stable direction and trajectory during the sliding process. The cooperation between the limiting slide rail and the limiting slider effectively prevents the sliding frame from shaking or deviating during the sliding process, enhancing the structural stability of the entire automatic sampling device, ensuring the accuracy and reliability of the sampling process, and precisely controlling the sliding range of the sliding frame to prevent the sliding frame from exceeding the predetermined range and causing the sampling tray to fall off the upright plate, resulting in device damage or sampling failure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a front view of the present invention.

[0019] Figure 3 This is a schematic diagram of the sampling tray in this utility model.

[0020] Figure 4 This is a schematic diagram of the sampling tray from another angle in this utility model.

[0021] Figure 5 This is a right view of the sampling tray in this utility model.

[0022] Figure 6 This is a schematic diagram of the disassembly structure of the sampling tray and the lifting base plate in this utility model.

[0023] In the diagram: 1. Hopper; 2. Sampling tray; 3. Electric scissor lift platform; 4. Lifting base plate; 5. Support plate; 6. Fixed frame; 7. Storage box; 8. Chassis; 9. Telescopic conveying hose; 10. Universal casters; 11. Vertical plate; 12. Sliding frame; 13. Electric push rod; 14. Ear plate; 15. Rack plate; 16. Servo motor; 17. Drive gear; 18. Driven gear; 19. Bushing; 20. Pin; 21. Rotating shaft; 22. Limiting slide rail; 23. Limiting slider. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0025] Example:

[0026] like Figures 1 to 6 As shown, an automatic sampling device for a coal yield detection system includes a fixed frame 6 and a sampling tray 2 for receiving coal. The fixed frame 6 is welded from multiple sets of square tubes, with a base plate 8 fixed at its bottom and a support plate 5 fixed at its upper end. The fixed frame 6 and the base plate 8 provide stable support for the entire device. A lifting base plate 4 is provided on the upper side of the support plate 5. Two sets of upright plates 11 are vertically and symmetrically fixed on the upper side of the lifting base plate 4 to support and guide the sliding frame 12 and to support the sampling tray 2. Each set of upright plates 11 has a sliding mechanism attached to its upper side. The sliding frame 12 is dynamically adjustable. A sampling tray 2 is provided between two sets of upright plates 11 to collect the coal discharged from the coal yield detection system. The two sides of the sampling tray 2 are placed on the sliding frame 12. Ear plates 14 are fixed on both the front and rear sides of the sampling tray 2. A rack plate 15 is fixed at the bottom of the sliding frame 12. Driven gears 18 are provided on the outer sides of both sets of upright plates 11. The two sets of driven gears 18 are connected by a rotating shaft 21, and the driven gears 18 are meshed with the rack plate 15 for transmission. The transmission is achieved through the meshing of the driven gears 18 and the rack plate 15. The sliding frame 12 is moved to achieve the translation of the sampling tray 2. A servo motor 16 is installed on the front side of the lifting base plate 4 to provide power input. A drive gear 17 is mounted on the output end of the servo motor 16, and the drive gear 17 is meshed with the driven gear 18 to drive the driven gear 18 to rotate, thereby driving the sliding frame 12 to move. Electric push rods 13 are provided on the outer side of both sets of sliding frames 12. The lower end of the electric push rod 13 is hinged to the sliding frame 12, and its upper end is hinged to the ear plate 14 on the sampling tray 2. The electric push rod 13 can drive the sliding frame 12 to move. The sampling tray 2 flips to the left, causing the coal inside to fall into the hopper 1. A bushing 19 is fixed on the left end face of the sampling tray 2, and a pin 20 is inserted inside the bushing 19. The two ends of the pin 20 are fixedly connected to two sets of upright plates 11 respectively. The sampling tray 2 is fixed to its left end through the bushing 19 and the pin 20, which in turn can cooperate with the electric push rod 13 to achieve the flipping action. This design solves the problem that the existing coal yield detection device cannot automatically collect and transfer the coal discharged after detection, which requires manual operation and is inefficient.

[0027] In this embodiment, an electric scissor lift platform 3 is provided between the lifting base plate 4 and the support plate 5. The bottom of the electric scissor lift platform 3 is fixedly connected to the support plate 5, and its top is fixedly connected to the lifting base plate 4. By connecting the electric scissor lift platform 3 to the support plate 5, the lifting platform can move vertically, thereby allowing the sampling tray 2 to be easily adjusted in height to accommodate coal yield detection devices at different heights. This enables the sampling tray 2 to move smoothly below the discharge port for coal sampling and collection.

[0028] In this embodiment, a limiting slide rail 22 is fixedly provided on the upper surface of the upright plate 11, and a limiting slider 23 adapted to the limiting slide rail 22 is installed on the inner bottom surface of the sliding frame 12 near the left end. The limiting slider 23 is connected to the limiting slide rail 22. The limiting slide rail 22 is fixed to the upper surface of the upright plate 11, providing a fixed sliding track for the sliding frame 12. The limiting slider 23 is installed on the inner bottom surface of the sliding frame 12 and is adapted to the limiting slide rail 22, ensuring that the sliding frame 12 can maintain a stable direction and trajectory during the sliding process. The cooperative connection between the limiting slide rail 22 and the limiting slider 23 effectively prevents the sliding frame 12 from shaking or deviating during the sliding process, enhances the structural stability of the entire automatic sampling device, ensures the accuracy and reliability of the sampling process, and precisely controls the sliding range of the sliding frame 12 to prevent the sliding frame 12 from exceeding the predetermined range and causing the sampling tray 2 to fall off the upright plate 11, resulting in device damage or sampling failure.

[0029] In this embodiment, a storage box 7 is placed on the chassis 8 inside the fixed frame 6. Two sets of upright plates 11 are fixedly connected to their left ends with hoppers 1. The right side of the hopper 1 has a slot for receiving material. The bottom of the hopper 1 has a conical structure and is connected to a telescopic conveying hose 9. The lower end of the telescopic conveying hose 9 is secured inside the fixed frame 6 and located directly above the storage box 7. The storage box 7 is placed on the chassis 8 inside the fixed frame 6 to store coal falling from the hopper 1. The storage box 7 can be removed from the chassis 8 for easy cleaning when full. The hopper 1 is used to collect coal samples poured from the sampling tray 2 and to transport the coal samples along the telescopic conveying hose 9 to the storage box 7 below.

[0030] In this embodiment, a rubber pad is attached to the upper surface of the sliding frame 12. The rubber pad has a good coefficient of friction, which can increase the friction between the sampling tray 2 and the sliding frame 12, making the sampling tray 2 more stable during sliding and reducing the possibility of shaking or slipping. At the same time, as a soft material, the rubber pad can play a buffering role between the sampling tray 2 and the sliding frame 12, reducing direct collision and wear between the two.

[0031] In this embodiment, the chassis 8 is equipped with swivel casters 10 near the four corners of the bottom. The swivel casters 10 allow the device to move freely on the ground, making it easy to move the device to a designated area and improving the device's mobility and ease of use.

[0032] The working principle of the automatic sampling device in this coal yield detection system:

[0033] In actual use, the device is moved to the front of the coal yield detection device via the universal casters 10 at the bottom of the chassis 8. Then, according to the height of the discharge port on the coal yield detection device, the height of the lifting base plate 4 is adjusted by the electric scissor lift platform 3, thereby adjusting the height of the sampling tray 2 to ensure that the sampling tray 2 is located below the discharge port.

[0034] The servo motor 16 is started, which drives the drive gear 17 to rotate. The drive gear 17 meshes with the driven gear 18, which in turn drives the driven gear 18 to rotate. The driven gear 18 meshes with the rack plate 15, which drives the rack plate 15 to move, thereby driving the sliding frame 12 to slide on the limit slide rail 22 on the vertical plate 11. The translation of the sliding frame 12 drives the sampling tray 2 to move, so that the sampling tray 2 is directly below the discharge port, so that it can smoothly receive the coal discharged from the discharge port. When the coal yield detection system discharges coal, the coal falls into the sampling tray 2.

[0035] After the material is discharged, the servo motor 16 rotates in the opposite direction, thereby driving the sampling tray 2 to move to the left and return to the initial position. Then the electric push rod 13 is started. The lower end of the electric push rod 13 is hinged to the sliding frame 12, and the upper end is hinged to the ear plate 14 on the sampling tray 2. Through the extension and retraction of the electric push rod 13, the sampling tray 2 is driven to flip to the left, and the coal in the sampling tray 2 falls into the hopper 1 during the flipping process.

[0036] The bottom of the hopper 1 has a conical structure to facilitate the smooth falling of coal. The coal in the hopper 1 falls through the telescopic conveying hose 9 into the storage box 7 inside the fixed frame 6. The storage box 7 is used to store the coal falling from the hopper 1 for subsequent processing. When the storage box 7 is full, it can be removed from the chassis 8 for cleaning.

[0037] In summary, the automatic sampling device of this coal yield detection system achieves automatic coal reception, transfer, and storage through a series of actions, including adjusting the height of the electric scissor lift platform 3, driving the sliding frame 12 to move horizontally with the servo motor 16, rotating the sampling tray 2 with the electric push rod 13, and sending the coal into the storage box 7 with the telescopic conveying hose 9. This improves sampling efficiency, reduces manual operation, and ensures the accuracy and reliability of the sampling process.

[0038] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.

Claims

1. An automatic sampling device for a coal yield detection system, characterized by: The utility model relates to a kind of coal sampling frame, including fixed frame (6) and the sampling tray (2) for containing coal, the fixed frame (6) is welded by multiple groups of square tube, bottom is fixed with bottom disc (8), upper end is fixed with support plate (5), the support plate (5) upside is equipped with lifting bottom plate (4), the lifting bottom plate (4) upside is vertically symmetrical and fixed with two groups of vertical plate (11), each group of vertical plate (11) upside is equipped with slippage frame (12) of adjustable sliding, two groups of vertical plate (11) between sampling tray (2) are equipped, and the two side edges of sampling tray (2) are placed on slippage frame (12), the front and back of sampling tray (2) are fixed with lug plate (14), the slippage frame (12) bottom is fixed with rack plate (15), two groups of vertical plate (11) outside are equipped with driven gear (18), two groups of driven gear (18) are connected by rotating shaft (21), and driven gear (18) is engaged transmission connection on rack plate (15), the lifting bottom plate (4) front side is installed with servo motor (16), the servo motor (16) output end is assembled with driving gear (17), and driving gear (17) is engaged transmission connection with driven gear (18), two groups of slippage frame (12) outside are equipped with electric push rod (13), the electric push rod (13) lower end is articulated on slippage frame (12), and its upper end is articulated with lug plate (14) on sampling tray (2), the left end surface of sampling tray (2) is fixed with shaft sleeve (19), the shaft sleeve (19) is inserted with pin shaft (20) inside, and the both ends of pin shaft (20) are fixedly connected to two groups of vertical plate (11).

2. The automatic sampling device of the coal yield detection system according to claim 1, characterized in that: The lifting bottom plate (4) and the support plate (5) are provided with an electric scissor type lifting platform (3), the bottom of the electric scissor type lifting platform (3) is fixedly connected with the support plate (5), and the top of the electric scissor type lifting platform (3) is fixedly connected with the lifting bottom plate (4).

3. The automatic sampling device of the coal yield detection system according to claim 1, characterized in that: The vertical plate (11) is fixedly connected with a limiting sliding rail (22) on the upper end surface, and the limiting sliding rail (22) is matched with a limiting sliding block (23) on the inner bottom surface of the slippage frame (12) close to the left end.

4. The automatic sampling device of the coal yield detection system according to claim 1, characterized in that: The bottom disc (8) in the fixed frame (6) is placed with a storage box (7), and the left end of the two groups of vertical plate (11) is fixedly connected with a hopper (1), and the right side of the hopper (1) is provided with a slot for receiving materials, the bottom of the hopper (1) is conical and connected with a telescopic conveying hose (9), and the lower end of the telescopic conveying hose (9) is clamped in the fixed frame (6) and located above the storage box (7).

5. The automatic sampling device of the coal yield detection system according to claim 1, characterized in that: The slippage frame (12) is pasted with a layer of rubber pad on the upper surface.

6. The automatic sampling device of the coal yield detection system according to claim 1, characterized in that: The bottom disc (8) is equipped with a universal wheel (10) close to the four corners.

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