A grain sampling machine

Abstract

The utility model relates to grain sample -taking machine technical field, and disclose a kind of grain sample -taking machine, rotationally connected in the inboard of fixed frame, the outer side of the shaft of one end of connecting rod is fixedly sleeved, the outer side of the shaft of one end of shaft is movably sleeved with torsional spring, one end of torsional spring is fixedly connected to the outer side of fixed frame, the outer side of the shaft of another end of torsional spring is fixedly connected, the one end of connecting rod is equipped with locating wheel by shaft, and the top of box is equipped with push-button switch;The utility model in the process of sample -taking rod moving upwards, when one end of sample -taking rod is separated from the outer side of the locating wheel of the other end of connecting rod, torsional spring is then driven shaft rotates, so that shaft drives connecting rod to rotate, one side of connecting rod is in contact with the bottom of push-button switch, then second drive motor is stopped running by push-button switch control, personnel operation can be prevented when distracted to cause one end of sample -taking rod to separate from the bottom of box, guarantee the normal operation of device, improve the security of device use.

Description

Technical Field

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

[0002] Sampling typically refers to randomly selecting a certain amount of grain from a large quantity of grain as a sample for testing and inspection. Current sampling methods often utilize grain samplers. These samplers take samples from different layers of the grain pile to check its quality.

[0003] During sampling, grain enters the internal channel through the suction port at the bottom of the sampling rod and is finally extracted through the discharge port at the top of the sampling rod for random inspection. After the grain inspection is completed, the sampling rod is pulled out of the grain interior by a drive device. If the operator forgets to stop the drive device, the sampling rod may detach, affecting the use of the sampling machine. Therefore, a grain sampling machine is proposed. Utility Model Content

[0004] The purpose of this utility model is to provide a grain sampling machine to solve the problem mentioned in the background art that after the grain sampling is completed, the sampling rod is pulled out of the grain by the drive device, and when the personnel forget to control the drive device to stop, the sampling rod will detach, thus affecting the use of the sampling machine.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a grain sampling machine, comprising... A support column, the top of which is rotatably connected to a rotating seat, the top of which is fixedly connected to a fixed seat, one end of which is fixedly connected to two guide columns, a box is installed above the two guide columns, a sampling rod passes through the top of the box, and an auxiliary component is installed at the bottom of the box; The auxiliary components include a fixed frame, a rotating shaft, and a connecting rod. The fixed frame is fixedly connected to the bottom of the box and located outside the sampling rod. The rotating shaft is rotatably connected to the inside of the fixed frame. One end of the connecting rod is fixedly sleeved on the outside of the rotating shaft. One end of the rotating shaft extends to the outside of the fixed frame and is movably sleeved with a torsion spring. One end of the torsion spring is fixedly connected to the outside of the fixed frame, and the other end of the torsion spring is fixedly connected to the outside of the rotating shaft. One end of the connecting rod is equipped with a positioning wheel via a shaft. A push-button switch is installed on the top of the box.

[0006] Preferably, two fixing frames are fitted onto the outer sides of each of the two guide posts, and pulleys are connected to the inner sides of the two fixing frames located on the outer sides of the guide posts via shafts.

[0007] Preferably, a first drive motor is installed on the top outer side of the aforementioned support column, a drive gear is installed on the output shaft of the first drive motor, a gear plate is fixedly sleeved on the outer side of the rotary seat, and the drive gear is meshed with the outer side of the gear plate.

[0008] Preferably, one end of each of the two guide pillars is fixedly connected to a connecting seat, and a mounting seat is fixedly connected between the two fixing frames on both sides. A lead screw is rotatably connected between the fixing seat and the connecting seat. The mounting seat is threaded to the outside of the lead screw. A third drive motor is installed inside the fixing seat, and the output shaft of the third drive motor is fixedly connected to one end of the lead screw.

[0009] Preferably, the inner end of the aforementioned housing is rotatably connected to two connecting shafts. Drive wheels and connecting gears are installed on the outer sides of the two connecting shafts. The two drive wheels are located on the outer side of the sampling rod, and the two connecting gears mesh with each other. A second drive motor is installed inside the housing, and the output shaft of the second drive motor is fixedly connected to one end of one of the connecting shafts.

[0010] Preferably, the electrical output terminal of the aforementioned push-button switch is connected to the electrical input terminal of the second drive motor.

[0011] Preferably, a collection bucket is installed on one side of the aforementioned support column, a feed pipe is connected to the outside of the collection bucket, a filter screen is installed inside the collection bucket, a sealing cover is installed on the top of the collection bucket, a connecting pipe is connected to the top of the sealing cover, a discharge pipe is installed at the bottom of the collection bucket, and a fan is installed on one side of the collection bucket.

[0012] Preferably, one end of the feed pipe is connected to the top of the sampling rod via a pipe, and one end of the connecting pipe is connected to the air inlet of the blower via a pipe.

[0013] Compared with the prior art, the present invention, by adopting the above technical solution, has the following technical effects: In this invention, during the upward movement of the sampling rod, when one end of the sampling rod disengages from the outer side of the positioning wheel at the other end of the connecting rod, the torsion spring drives the rotating shaft to rotate, causing the rotating shaft to drive the connecting rod to rotate. One side of the connecting rod abuts against the bottom of the push-button switch, and then the push-button switch controls the second drive motor to stop running. This prevents the sampling rod from disengaging from the bottom of the box due to operator distraction, ensuring the normal operation of the device and improving the safety of its use. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model; Figure 2 This is a schematic diagram of the rear view structure of this utility model; Figure 3 This is a schematic diagram of the bottom structure of the box body of this utility model; Figure 4 For the present utility model Figure 3 Enlarged structural diagram of area A in the middle; Figure 5 This is a schematic diagram of the cross-sectional structure of the box body of this utility model; Figure 6 This is a schematic cross-sectional view of the collection bucket of this utility model.

[0016] Explanation of reference numerals in the attached drawings: 1. Support column; 2. Rotary seat; 3. Fixed seat; 4. Guide column; 5. Connecting seat; 6. Fixed frame; 7. Pulley; 8. Box body; 9. Sampling rod; 10. Fixed frame; 11. Rotating shaft; 12. Connecting rod; 13. Torsion spring; 14. Positioning wheel; 15. Push button switch; 16. First drive motor; 17. Drive gear; 18. Gear plate; 19. Connecting shaft; 20. Drive wheel; 21. Connecting gear; 22. Second drive motor; 23. Lead screw; 24. Mounting seat; 25. Third drive motor; 26. Collection bucket; 27. Feed pipe; 28. Filter screen; 29. ​​Sealing cover; 30. Connecting pipe; 31. Discharge pipe; 32. Fan. Detailed Implementation

[0017] 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 some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] It should be noted that the structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which this application can be implemented. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0019] Example

[0020] Please see Figure 1-6 This utility model provides a technical solution: a grain sampling machine, comprising... Support column 1, top of support column 1 is rotatably connected to rotating seat 2, top of rotating seat 2 is fixedly connected to fixed seat 3, one end of fixed seat 3 is fixedly connected to two guide columns 4, box body 8 is installed above the two guide columns 4, top of box body 8 is through sampling rod 9, bottom of box body 8 is installed with auxiliary components.

[0021] To facilitate grain sampling, two connecting shafts 19 are rotatably connected to one end of the inner side of the housing 8. Drive wheels 20 and connecting gears 21 are installed on the outer side of each connecting shaft 19. The two drive wheels 20 are located on the outer side of the sampling rod 9, and the two connecting gears 21 mesh with each other. The two connecting gears 21 need to be maintained regularly and lubricated. A second drive motor 22 is installed inside the housing 8. The output shaft of the second drive motor 22 is fixedly connected to one end of one of the connecting shafts 19. The output shaft of the second drive motor 22 drives one of the connecting shafts 19 to rotate. One connecting shaft 19 drives the other connecting shaft 19 to rotate through the two connecting gears 21. The drive wheels 20 on the outer side of the two connecting shafts 19 can drive the sampling rod 9 to move downward, so that one end of the sampling rod 9 is inserted into the grain. By setting auxiliary components, a safety protection can be provided for the sampling rod 9 of the device to prevent it from detaching. The auxiliary components include a fixing frame 10, a rotating shaft 11, and a connecting rod 12. The fixing frame 10 is fixedly connected to the bottom of the housing 8 and located on the outside of the sampling rod 9. The rotating shaft 11 is rotatably connected to the inside of the fixing frame 10. One end of the connecting rod 12 is fixedly sleeved on the outside of the rotating shaft 11. One end of the rotating shaft 11 extends to the outside of the fixing frame 10 and is movably sleeved with a torsion spring 13. One end of the torsion spring 13 is fixedly connected to the outside of the fixing frame 10, and the other end of the torsion spring 13 is fixedly connected to the outside of the rotating shaft 11. The torsion spring 13 is a consumable part and needs to be maintained and replaced regularly. The initial state of 3 is the charging state. One end of the connecting rod 12 is equipped with a positioning wheel 14 through a shaft. A push-button switch 15 is installed on the top of the housing 8. The electrical output terminal of the push-button switch 15 is connected to the electrical input terminal of the second drive motor 22. When one end of the sampling rod 9 is disengaged from the outside of the positioning wheel 14 at the other end of the connecting rod 12, the torsion spring 13 drives the rotating shaft 11 to rotate, which in turn drives the connecting rod 12 to rotate. One side of the connecting rod 12 abuts against the bottom of the push-button switch 15. Then, the push-button switch 15 controls the second drive motor 22 to stop running. This can prevent the sampling rod 9 from disengaging from the bottom of the housing 8 due to operator distraction, thus ensuring the normal operation of the device. When in operation, the output shaft of the second drive motor 22 rotates, and the two drive wheels 20 drive the sampling rod 9 to move downward inside the housing 8. At the same time, when the sampling rod 9 abuts against the outside of the positioning wheel 14, it pushes one end of the connecting rod 12 to move, so that the connecting rod 12 drives the rotating shaft 11 to rotate on the fixed frame 10. One side of the connecting rod 12 disengages from the outside of the button switch 15. At this time, the torsion spring 13 is in a stored state to facilitate the next safety protection of the device.

[0022] To adjust the position of the sampling rod 9, a first drive motor 16 is installed on the top outer side of the support column 1. A drive gear 17 is installed on the output shaft of the first drive motor 16. A gear plate 18 is fixedly sleeved on the outer side of the rotating seat 2. The drive gear 17 is meshed with the outer side of the gear plate 18. The output shaft of the first drive motor 16 drives the rotating seat 2 on the gear plate 18 to rotate through the drive gear 17. The rotating seat 2 then drives the fixed seat 3 to rotate. The two guide columns 4 on the fixed seat 3 drive the sampling rod 9 to move through the housing 8, thereby adjusting the position of the sampling rod 9.

[0023] To adjust the position of the sampling rod 9 on the two guide posts 4, two fixing frames 6 are fitted onto the outer sides of each guide post 4. The inner sides of the two fixing frames 6, located outside the guide posts 4, are connected to pulleys 7 via shafts. A connecting seat 5 is fixedly connected to one end of each guide post 4. A mounting seat 24 is fixedly connected between the two fixing frames 6 on both sides. A lead screw 23 is rotatably connected between the fixing seat 3 and the connecting seat 5. The mounting seat 24 is threaded onto the outer side of the lead screw 23. A lead screw guard can be installed on the outer side of the lead screw 23. The lead screw 23 should be regularly maintained, cleaned, and lubricated to ensure its proper functioning. The smooth transmission of the lead screw 23 is achieved by installing a third drive motor 25 inside the fixed base 3, with the output shaft of the third drive motor 25 fixedly connected to one end of the lead screw 23. The output shaft of the third drive motor 25 drives the lead screw 23 to rotate between the fixed base 3 and the connecting base 5. The lead screw 23 drives the four fixed frames 6 to move through the mounting base 24, causing the two pulleys 7 inside the four fixed frames 6 to roll on the outside of the guide post 4, thereby driving the box 8 to move. The position of the box 8 on the two guide posts 4 is adjusted to ensure that the sampling rod 9 can sample grains at different locations inside the transport vehicle.

[0024] To facilitate the collection of sampled grain, a collection bucket 26 is installed on one side of the support column 1. An inlet pipe 27 is connected to the outside of the collection bucket 26. A filter screen 28 is installed inside the collection bucket 26. A sealing cap 29 is installed on the top of the collection bucket 26, and a connecting pipe 30 is connected to the top of the sealing cap 29. A discharge pipe 31 is installed at the bottom of the collection bucket 26. A blower 32 is installed on one side of the collection bucket 26. One end of the inlet pipe 27 is connected to the top of the sampling rod 9 via a pipe, and one end of the connecting pipe 30 is connected to the air inlet of the blower 32 via a pipe. When the sampling rod 9 moves to a suitable position, the blower 32, through the pipe and connecting pipe 30, creates a vacuum inside the collection bucket 26. The grain is then introduced into the inlet pipe 27 through the pipe on the sampling rod 9 and falls into the collection bucket 26, thus completing the grain sampling. After sampling, the motor of the blower 32 can be turned off, and the cap at the bottom of the discharge pipe 31 can be opened to discharge the sampled grain from the inside of the collection bucket 26.

[0025] The working principle or structural principle is as follows: When the device is in use, the first drive motor 16 is started by controlling the switch group. The output shaft of the first drive motor 16 drives the rotating seat 2 on the gear plate 18 to rotate through the drive gear 17. The rotating seat 2 drives the fixed seat 3 to rotate. The two guide posts 4 on the fixed seat 3 drive the sampling rod 9 to move through the box body 8, thereby adjusting the position of the sampling rod 9. At the same time, the third drive motor 25 is started by controlling the switch group. The output shaft of the third drive motor 25 drives the lead screw 23 to rotate between the fixed seat 3 and the connecting seat 5. The lead screw 23 drives the four fixed frames 6 to move through the mounting seat 24, so that the two pulleys 7 inside the four fixed frames 6 roll on the outside of the guide posts 4, thereby driving the box body 8 to move. The position of the box body 8 on the two guide posts 4 is adjusted to ensure that the sampling rod 9 can sample grains in different positions inside the transport vehicle.

[0026] During sampling, the second drive motor 22 is started by controlling the switch assembly. The output shaft of the second drive motor 22 drives one of the connecting shafts 19 to rotate. The connecting shaft 19 then drives the other connecting shaft 19 to rotate through two connecting gears 21. The drive wheels 20 on the outside of the two connecting shafts 19 drive the sampling rod 9 to move downwards, so that one end of the sampling rod 9 is inserted into the grain. After moving to the appropriate position, the motor of the blower 32 is started by controlling the switch assembly. The blower 32 evacuates the inside of the collection bucket 26 through the connecting pipe 30. The grain is then introduced into the inside of the feed pipe 27 through the pipe on the sampling rod 9, and then falls into the inside of the collection bucket 26, thus completing the sampling of the grain. After sampling, the motor of the blower 32 can be turned off, and the cover at the bottom of the discharge pipe 31 can be opened to discharge the sampled grain into the inside of the collection bucket 26.

[0027] After a sampling inspection at one location is completed, the output shaft of the second drive motor 22 rotates, causing the two drive wheels 20 to move the sampling rod 9 upward inside the housing 8, so that one end of the sampling rod 9 disengages from the grain to facilitate sampling at the next location. During the movement of the sampling rod 9, when one end of the sampling rod 9 disengages from the outer side of the positioning wheel 14 at the other end of the connecting rod 12, the torsion spring 13 drives the rotating shaft 11 to rotate, causing the rotating shaft 11 to drive the connecting rod 12 to rotate. One side of the connecting rod 12 abuts against the bottom of the push-button switch 15, and then the push-button switch 15 controls the second drive motor. Stopping operation of 22 can prevent the sampling rod 9 from detaching from the bottom of the box 8 due to operator distraction, ensuring the normal operation of the device. When running, the output shaft of the second drive motor 22 rotates, and the two drive wheels 20 drive the sampling rod 9 to move downward inside the box 8. At the same time, when the sampling rod 9 touches the outside of the positioning wheel 14, it pushes one end of the connecting rod 12 to move, so that the connecting rod 12 drives the rotating shaft 11 to rotate on the fixed frame 10. One side of the connecting rod 12 detaches from the outside of the button switch 15. At this time, the torsion spring 13 is in a stored state to facilitate the device's next safety protection.

[0028] Those skilled in the art will understand that the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways, even if such combinations or combinations are not explicitly described in this utility model. In particular, the features described in the various embodiments and / or claims of this utility model can be combined or combined in various ways without departing from the spirit and teachings of this utility model. All such combinations and / or combinations fall within the scope of this utility model.

Claims

1. A grain sampling machine, characterized in that, include A support column (1) is rotatably connected to the top of the support column (1), a rotating seat (2) is fixedly connected to the top of the rotating seat (2), a fixed seat (3) is fixedly connected to one end of the fixed seat (3), two guide columns (4) are fixedly connected to one end of the fixed seat (3), a box (8) is installed above the two guide columns (4), a sampling rod (9) is passed through the top of the box (8), and an auxiliary component is installed at the bottom of the box (8). The auxiliary components include a fixed frame (10), a rotating shaft (11), and a connecting rod (12). The fixed frame (10) is fixedly connected to the bottom of the box (8) and located outside the sampling rod (9). The rotating shaft (11) is rotatably connected to the inside of the fixed frame (10). One end of the connecting rod (12) is fixedly sleeved on the outside of the rotating shaft (11). One end of the rotating shaft (11) extends to the outside of the fixed frame (10) and is movably sleeved with a torsion spring (13). One end of the torsion spring (13) is fixedly connected to the outside of the fixed frame (10), and the other end of the torsion spring (13) is fixedly connected to the outside of the rotating shaft (11). One end of the connecting rod (12) is equipped with a positioning wheel (14) through a shaft. A push-button switch (15) is installed on the top of the box (8).

2. The grain sampler according to claim 1, characterized in that, Two fixing frames (6) are fitted on the outer sides of the two guide posts (4), and the inner sides of the two fixing frames (6) are connected to pulleys (7) via shafts on the outer sides of the guide posts (4).

3. A grain sampler according to claim 1, characterized in that, The first drive motor (16) is installed on the top of the outer side of the support column (1). The output shaft of the first drive motor (16) is equipped with a drive gear (17). The outer side of the swivel (2) is fixedly sleeved with a gear disc (18). The drive gear (17) is meshed with the outer side of the gear disc (18).

4. A grain sampler according to claim 2, characterized in that, One end of each of the two guide pillars (4) is fixedly connected to a connecting seat (5), and a mounting seat (24) is fixedly connected between the two fixed frames (6) on both sides. A lead screw (23) is rotatably connected between the fixed seat (3) and the connecting seat (5). The mounting seat (24) is threaded to the outside of the lead screw (23). A third drive motor (25) is installed inside the fixed seat (3), and the output shaft of the third drive motor (25) is fixedly connected to one end of the lead screw (23).

5. A grain sampler according to claim 1, characterized in that, The housing (8) has two connecting shafts (19) rotatably connected to one end of its interior. Both connecting shafts (19) have drive wheels (20) and connecting gears (21) installed on their outer sides. The two drive wheels (20) are located on the outer side of the sampling rod (9), and the two connecting gears (21) mesh with each other. The housing (8) has a second drive motor (22) installed inside its interior. The output shaft of the second drive motor (22) is fixedly connected to one end of one of the connecting shafts (19).

6. A grain sampler according to claim 1, characterized in that, The electrical output terminal of the push button switch (15) is connected to the electrical input terminal of the second drive motor (22).

7. A grain sampler according to claim 1, characterized in that, A collection bucket (26) is installed on one side of the support column (1). A feed pipe (27) is connected to the outside of the collection bucket (26). A filter screen (28) is installed inside the collection bucket (26). A sealing cover (29) is installed on the top of the collection bucket (26). A connecting pipe (30) is connected to the top of the sealing cover (29). A discharge pipe (31) is installed at the bottom of the collection bucket (26). A fan (32) is installed on one side of the collection bucket (26).

8. A grain sampler according to claim 7, characterized in that, One end of the feed pipe (27) is connected to the top of the sampling rod (9) through a pipe, and one end of the connecting pipe (30) is connected to the air inlet of the blower (32) through a pipe.

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