Sampling mechanical arm for coal multi-point sampling

Abstract

The utility model relates to a sampling mechanical arm, belongs to the technical field of coal sampling, and particularly relates to a sampling mechanical arm for coal multi-point sampling, which comprises a base, the top of the base is fixedly connected with a fixed frame, and the fixed frame is slidably connected with a sliding frame; through the arrangement of the discharging mechanism, a servo motor drives a sliding frame to move upwards through a threaded rod, so that an extrusion column firstly extrudes a bending rod to move, the bending rod drives a sliding rack to move, and the sliding rack moves to drive a gear, a rotating rod and a collecting barrel to rotate, so that a sampling tube is reset and continuously moves upwards along with the sliding frame; an extrusion block extrudes a fixed ring, a sliding rod and a fixed plate to move downwards, and the fixed plate moves downwards to extrude a coal sample out and enter a collecting barrel, so that the coal sample in the sampling pipe can be automatically discharged and collected, and the problems that most of the coal samples in the sampling pipe need to be manually taken out, the operation is relatively tedious, and time and labor are wasted are solved.

Description

Technical Field

[0001] This utility model relates to the field of coal sampling technology, and in particular to a sampling robotic arm for multi-point coal sampling. Background Technology

[0002] Before coal is used, a sampling robotic arm is needed to sample it in order to test the quality of the sampled coal and determine whether the coal is up to standard.

[0003] A search of Chinese patent publication number CN221211698U reveals a sampling robotic arm for coal sampling, comprising a control base for rotating the entire sampling robotic arm; a support frame rotatably mounted on the upper part of the control base; a lifting assembly installed inside the support frame for lifting the sampling robotic arm; a synchronous multi-point sampling assembly installed on the left side of the support frame for simultaneously sampling coal at three locations; and a support and storage assembly installed on the left side of the support frame, with the synchronous multi-point sampling assembly installed below the left end of the support and storage assembly.

[0004] Based on the above search results and existing technologies, the following findings were made:

[0005] In the process of sampling coal, most existing multi-point sampling robotic arms require manual removal of coal samples from the sampling tube, which is cumbersome, time-consuming, and labor-intensive, making it inconvenient to discharge coal samples. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model proposes a sampling robotic arm for multi-point coal sampling. The squeezing block squeezes the fixing ring, slide bar and fixing plate downwards, and the fixing plate moves downwards to squeeze the coal sample out and into the collection bucket.

[0007] The technical solution to achieve the purpose of this utility model is: a sampling robotic arm for multi-point sampling of coal, including a base, a fixed frame fixedly connected to the top of the base, a sliding frame slidably connected to the fixed frame, a fixed arm fixedly connected to one end of the sliding frame, three rotating columns rotatably connected to the fixed arm, and a sampling tube fixedly connected to the bottom end of each of the three rotating columns; and also includes:

[0008] The material discharge mechanism is located on a fixed frame.

[0009] The discharge mechanism includes an extrusion unit and a rotation unit. The extrusion unit includes a mounting frame fixedly connected to a fixed frame. Three fixed rods are fixedly connected to the bottom of the mounting frame. Extrusion blocks are fixedly connected to each of the three fixed rods. Sliding rods are slidably connected to each of the three sampling tubes. Fixed plates are fixedly connected to the bottom of each of the three sliding rods. The three fixed plates are slidably connected to the three sampling tubes respectively. Fixed rings are fixedly connected to the top of each of the three sliding rods. The three fixed rings are in contact with the three extrusion blocks respectively. Telescopic springs are sleeved on each of the three sliding rods. The two ends of the telescopic springs are fixedly connected to the sampling tubes and the fixed plates respectively.

[0010] In some embodiments, the rotating unit includes rotating rods rotatably connected to the bottom ends of three fixed rods, with collection buckets fixedly connected to the bottom ends of the rotating rods. The three collection buckets are located directly below the three sampling tubes. Gears are fixedly sleeved on the three rotating rods. A fixed block is fixedly connected to one side of one of the squeezing blocks. A movable block is slidably connected to one end of the fixed block. A limit block is fixedly connected to the bottom of one end of the movable block. A sliding rack is fixedly connected to the limit block. All three gears mesh with the sliding rack.

[0011] In some embodiments, a bending rod is fixedly connected to the sliding rack, and a pressing column is fixedly connected to one side of the fixed arm, with the pressing column in contact with the bending rod.

[0012] In some embodiments, the fixed block is provided with a return spring, and the two ends of the return spring are fixedly connected to the fixed block and the movable block, respectively.

[0013] In some embodiments, a drive motor is fixedly connected to the fixed arm, a drive shaft is fixedly connected to the output end of the drive motor, three main bevel gears are fixedly sleeved on the drive shaft, and secondary bevel gears are fixedly connected to the top ends of the three rotating columns. The three secondary bevel gears mesh with the three main bevel gears respectively.

[0014] In some embodiments, a servo motor is fixedly connected to the top of the fixed frame, and a threaded rod is fixedly connected to the output end of the servo motor. The threaded rod is rotatably connected to the fixed frame, and a sliding frame is screwed onto the threaded rod.

[0015] Compared with existing technologies, the significant advantages of this invention are:

[0016] This invention, through the setting of the discharge mechanism, after sampling, the servo motor drives the threaded rod to rotate in the opposite direction. The rotation of the threaded rod causes the sliding frame to move upward, so that the extrusion column first extrudes the bent rod to move. The bent rod drives the sliding rack to move. The movement of the sliding rack drives the gear, rotating rod and collection bucket to rotate, so that the sampling tube is reset. As the sliding frame continues to move upward, the extrusion block extrudes the fixing ring, sliding rod and fixing plate to move downward. The fixing plate moves downward to squeeze the coal sample out and into the collection bucket, so that the coal sample in the sampling tube can be automatically discharged and collected.

[0017] This solves the problem that most existing methods require manual removal of coal samples from the sampling tube, which is cumbersome, time-consuming, and labor-intensive. Attached Figure Description

[0018] The present invention will be further explained below with reference to the accompanying drawings and embodiments:

[0019] Figure 1 This is a schematic diagram of the overall first-view three-dimensional structure of the present invention in one embodiment;

[0020] Figure 2 This is a schematic diagram of the overall second-view three-dimensional structure provided in one embodiment of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the rotating unit provided in one embodiment of the present invention;

[0022] Figure 4 This is a schematic diagram of the internal cross-sectional planar structure of the sampling tube provided in one embodiment of the present invention;

[0023] Figure 5 This is a schematic diagram of the internal cross-sectional planar structure of the fixing block provided in one embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Base; 11. Fixing frame; 12. Servo motor; 13. Threaded rod; 14. Sliding frame; 15. Fixing arm; 16. Rotating column; 17. Sampling tube; 18. Secondary bevel gear; 19. Drive motor; 110. Drive shaft; 111. Main bevel gear; 2. Mounting frame; 21. Fixing rod; 22. Rotating rod; 23. Collection bucket; 24. Extrusion block; 25. Fixing block; 26. Movable block; 27. Limiting block; 28. Sliding rack; 29. ​​Gear; 210. Return spring; 3. Slide rod; 31. Fixing plate; 32. Telescopic spring; 33. Fixing ring; 4. Bending rod; 41. Extrusion column. Detailed Implementation

[0026] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present invention.

[0027] This utility model provides an improved sampling robotic arm for multi-point coal sampling. The technical solution of this utility model is as follows:

[0028] like Figures 1-5 As shown, a sampling robotic arm for multi-point coal sampling includes a base 1. A fixed frame 11 is fixedly connected to the top of the base 1. The fixed frame 11 is fixed to the base 1 by welding, which improves the stability of the fixed frame 11. A sliding frame 14 is slidably connected to the fixed frame 11. A fixed arm 15 is fixedly connected to one end of the sliding frame 14. Three rotating columns 16 are rotatably connected to the fixed arm 15. Sampling tubes 17 are fixedly connected to the bottom ends of the three rotating columns 16. The arm also includes a discharge mechanism located on the fixed frame 11. The discharge mechanism includes a pressing unit and a rotating unit. The pressing unit includes a mounting frame 2 fixedly connected to the fixed frame 11. To make the mounting frame 2 more secure, the mounting frame 2 is fixed to the fixed frame 11 by welding. Three fixed rods 21 are fixedly connected to the bottom of the mounting frame 2. Each of the three fixed rods 21 is fixedly connected to an extrusion block 24. Each of the three sampling tubes 17 is slidably connected to a slide rod 3. Each of the three slide rods 3 is fixedly connected to a fixing plate 31 at its bottom end. Each of the three fixing plates 31 is slidably connected to the three sampling tubes 17. Each of the three slide rods 3 is fixedly connected to a fixing ring 33 at its top end. Each of the three fixing rings 33 is in contact with the three extrusion blocks 24. Each of the three slide rods 3 is fitted with a telescopic spring 32. The two ends of the telescopic spring 32 are fixedly connected to the sampling tube 17 and the fixing plate 31, respectively. With the extrusion unit, when the sliding frame 14 moves upward, the extrusion block 24 extrudes the fixing ring 33, slide rod 3 and fixing plate 31 downward. The fixing plate 31 moves downward to extrude the coal sample and enter the collection bucket 23, thus realizing the automatic discharge and collection of the coal sample in the sampling tube 17.

[0029] like Figure 3As shown, in one embodiment, to make the fixing block 25 more secure, the fixing block 25 is fixed to the extrusion block 24 by welding. The rotating unit includes rotating rods 22 rotatably connected to the bottom ends of three fixing rods 21 respectively. The bottom ends of the multiple rotating rods 22 are all fixedly connected to collection buckets 23. The three collection buckets 23 are located directly below the three sampling tubes 17 respectively. Gears 29 are fixedly sleeved on the three rotating rods 22. The fixing block 25 is fixedly connected to one side of one of the extrusion blocks 24. One end of the fixing block 25 is slidably connected to a movable block 26. The bottom end of one end of the movable block 26 is fixedly connected to a limiter. Block 27, a sliding rack 28 is fixedly connected to the limiting block 27, and three gears 29 are all meshed on the sliding rack 28. A bent rod 4 is fixedly connected to the sliding rack 28, and a pressing column 41 is fixedly connected to one side of the fixed arm 15. The pressing column 41 is in contact with the bent rod 4. Through the setting of the rotating unit, during the upward movement of the sliding frame 14, the pressing column 41 first presses the bent rod 4 to move, the bent rod 4 drives the sliding rack 28 to move, and the movement of the sliding rack 28 drives the gears 29, the rotating rod 22 and the collection bucket 23 to rotate, so that the sampling tube 17 automatically moves to the bottom of the sampling tube 17.

[0030] like Figure 5 As shown, in one embodiment, a reset spring 210 is provided inside the fixed block 25. The two ends of the reset spring 210 are fixedly connected to the fixed block 25 and the movable block 26, respectively. With the reset spring 210, when the squeezing column 41 moves away from the bending rod 4, the reset spring 210 can drive the movable block 26, the limiting block 27 and the sliding rack 28 to reset. The sliding rack 28 drives the gear 29, the rotating rod 22 and the collection bucket 23 to rotate 90°, so as not to affect the downward movement of the sampling tube 17.

[0031] like Figure 2 As shown, in one embodiment, to facilitate later maintenance of the drive motor 19, the drive motor 19 is fixed to the fixed arm 15 by screwing. The drive motor 19 is fixedly connected to the fixed arm 15, and the output end of the drive motor 19 is fixedly connected to the drive shaft 110. Three main bevel gears 111 are fixedly sleeved on the drive shaft 110, and the top ends of the three rotating columns 16 are fixedly connected to the secondary bevel gears 18. The three secondary bevel gears 18 mesh with the three main bevel gears 111 respectively. With the setting of the drive motor 19, the drive motor 19 drives the drive shaft 110 and the main bevel gears 111 to rotate. The rotation of the main bevel gears 111 drives the secondary bevel gears 18, the rotating columns 16 and the sampling tube 17 to rotate, so that the sampling tube 17 samples the coal.

[0032] like Figure 2As shown, in one embodiment, to facilitate later maintenance of the servo motor 12, the servo motor 12 is fixed to the fixed frame 11 by screwing. The servo motor 12 is fixedly connected to the top of the fixed frame 11, and a threaded rod 13 is fixedly connected to the output end of the servo motor 12. The threaded rod 13 is rotatably connected to the fixed frame 11, and the sliding frame 14 is screwed to the threaded rod 13. With the servo motor 12, the servo motor 12 drives the threaded rod 13 to rotate, and the rotation of the threaded rod 13 can drive the sliding frame 14, the fixed arm 15, the rotating column 16, and the sampling tube 17 to rise and fall.

[0033] The specific working method is as follows: Servo motor 12 drives threaded rod 13 to rotate. When threaded rod 13 rotates, it drives sliding frame 14, fixed arm 15, rotating column 16, and sampling tube 17 to move downwards. Fixed arm 15 moves downwards, causing extrusion column 41 to move downwards away from bending rod 4. Since return spring 210 is in a compressed state, return spring 210 drives movable block 26, limit block 27, and sliding rack 28 to reset. Sliding rack 28 drives gear 29, rotating rod 22, and collection bucket 23 to rotate 90°, thus not affecting the downward movement of sampling tube 17. Drive motor 19 is started, driving drive shaft 110 and main bevel gear 111 to rotate. Main bevel gear 111 rotates, driving secondary bevel gear 18, rotating column 16, and sampling tube 17 to move downwards. The servo motor 12 rotates the sampling tube 17 to sample the coal. After sampling, the servo motor 12 drives the threaded rod 13 to rotate in the opposite direction. The rotation of the threaded rod 13 drives the sliding frame 14 to move upward, so that the extrusion column 41 first extrudes the bent rod 4 to move. The bent rod 4 drives the sliding rack 28 to move. The movement of the sliding rack 28 drives the gear 29, the rotating rod 22 and the collection bucket 23 to rotate, so that the sampling tube 17 is reset. As the sliding frame 14 continues to move upward, the extrusion block 24 extrudes the fixing ring 33, the sliding rod 3 and the fixing plate 31 to move downward. The fixing plate 31 moves downward to squeeze the coal sample into the collection bucket 23, so that the coal sample in the sampling tube 17 can be automatically discharged and collected, thus facilitating the discharge of the coal sample.

[0034] The technical means disclosed in this utility model are not limited to those described above, but also include technical solutions composed of equivalent substitutions of the above technical features. Matters not covered in this utility model are common knowledge to those skilled in the art.

Claims

1. A sampling robotic arm for multi-point coal sampling, comprising a base (1), a fixed frame (11) fixedly connected to the top of the base (1), a sliding frame (14) slidably connected to the fixed frame (11), a fixed arm (15) fixedly connected to one end of the sliding frame (14), three rotating columns (16) rotatably connected to the fixed arm (15), and sampling tubes (17) fixedly connected to the bottom ends of the three rotating columns (16), characterized in that: Also includes; The discharge mechanism is located on the fixed frame (11); The discharge mechanism includes an extrusion unit and a rotation unit. The extrusion unit includes a mounting frame (2) fixedly connected to a fixed frame (11). Three fixed rods (21) are fixedly connected to the bottom of the mounting frame (2). Extrusion blocks (24) are fixedly connected to each of the three fixed rods (21). Sliding rods (3) are slidably connected to each of the three sampling tubes (17). Fixed plates (31) are fixedly connected to the bottom of each of the three sliding rods (3). The three fixed plates (31) are slidably connected to the three sampling tubes (17). Fixed rings (33) are fixedly connected to the top of each of the three sliding rods (3). The three fixed rings (33) are in contact with the three extrusion blocks (24). Telescopic springs (32) are sleeved on each of the three sliding rods (3). The two ends of the telescopic springs (32) are fixedly connected to the sampling tubes (17) and the fixed plates (31) respectively.

2. The sampling robotic arm for multi-point coal sampling according to claim 1, characterized in that: The rotating unit includes rotating rods (22) that are rotatably connected to the bottom ends of three fixed rods (21). Each of the rotating rods (22) has a collection bucket (23) fixedly connected to its bottom end. The three collection buckets (23) are located directly below the three sampling tubes (17). Gears (29) are fixedly sleeved on each of the three rotating rods (22). A fixed block (25) is fixedly connected to one side of one of the squeezing blocks (24). A movable block (26) is slidably connected to one end of the fixed block (25). A limit block (27) is fixedly connected to the bottom of one end of the movable block (26). A sliding rack (28) is fixedly connected to the limit block (27). All three gears (29) mesh with the sliding rack (28).

3. The sampling robotic arm for multi-point coal sampling according to claim 2, characterized in that: A bent rod (4) is fixedly connected to the sliding rack (28), and a pressing column (41) is fixedly connected to one side of the fixed arm (15). The pressing column (41) is in contact with the bent rod (4).

4. The sampling robotic arm for multi-point coal sampling according to claim 3, characterized in that: The fixed block (25) is provided with a return spring (210), and the two ends of the return spring (210) are fixedly connected to the fixed block (25) and the movable block (26) respectively.

5. A sampling robotic arm for multi-point coal sampling according to claim 4, characterized in that: A drive motor (19) is fixedly connected to the fixed arm (15). A drive shaft (110) is fixedly connected to the output end of the drive motor (19). Three main bevel gears (111) are fixedly sleeved on the drive shaft (110). A secondary bevel gear (18) is fixedly connected to the top of the three rotating columns (16). The three secondary bevel gears (18) mesh with the three main bevel gears (111) respectively.

6. The sampling robotic arm for multi-point coal sampling according to claim 1, characterized in that: A servo motor (12) is fixedly connected to the top of the fixed frame (11), and a threaded rod (13) is fixedly connected to the output end of the servo motor (12). The threaded rod (13) is rotatably connected to the fixed frame (11), and the sliding frame (14) is screwed onto the threaded rod (13).

Images