A sampling auxiliary device and a sampling detection device

Abstract

This invention discloses a sampling auxiliary device and a sampling detection device. The sampling auxiliary device includes a spiral propulsion body and a driving system. The spiral propulsion body includes a columnar main body and spiral protrusions on the outer surface of the main body. The driving system drives the main body to rotate. In this invention, the sampling auxiliary device can move automatically within grains to meet the needs of different sampling depths, eliminating the need for complex sampling tubes, simplifying operation, and reducing manpower.

Description

Technical Field

[0001] This invention relates to the field of sampling technology, and in particular to a sampling auxiliary device and a sampling detection device. Background Technology

[0002] As the volume of grain storage continues to increase, there are two ways to test various indicators of deep-seated grain: direct sampling and testing, or sensor testing. Currently, both domestically and internationally, direct sampling uses machinery to insert tubes for sampling, while sensor testing involves burying the testing device or cable directly at the fixed location to be tested.

[0003] However, the sampling depth of fixed sampling devices is also limited. As grain silos have moved indoors, sampling devices have gradually transitioned from those for bagged grain to tubular and pneumatic sampling devices. Both tubular and pneumatic sampling devices use tubing as their sampling tubes. The purpose of using tubing is to achieve sampling at different depths. The deepest sampling distance is the combined length of all the tubing. For large grain silos, this requires a large assembly of sampling tubes. Therefore, tubular grain silo sampling devices have significant limitations in practical use. The sampling depth is obviously insufficient, time-consuming and labor-intensive, grains are easily broken, and the representativeness of the samples is defective. For fixed grain sampling devices and sleeve-type grain silo sampling devices, although the sampling efficiency of fixed grain sampling devices is slightly higher than that of sleeve-type grain silo sampling devices, their sampling positions are limited. First, once installed and fixed, it is difficult to move it. Changing its position will require a lot of manpower and resources. Second, fixed grain sampling devices are designed for sampling bulk grain from trucks and are not suitable for other grain loading forms, making them difficult to use for indoor grain silo sampling and testing.

[0004] Compared to other sampling devices, the air-suction sampling device incorporates a fan system and a complete grain storage system. Applying this device to indoor grain silos significantly reduces the workload of grain inspectors and improves work efficiency. However, continuous use has revealed limitations. Because the sampling tube is a sleeve, the sampling depth is still restricted. In areas with uneven grain distribution, the tube struggles to penetrate and suck up the grain. To sample different areas, the extended tube needs to be disassembled, reassembled after determining the location, and the process is complex, time-consuming, and susceptible to environmental factors. Summary of the Invention

[0005] The main objective of this invention is to provide a sampling auxiliary device that addresses the problems of existing grain storage sampling devices being unable to adapt to different sampling depths and having complex sampling operations.

[0006] To achieve the above objectives, the sampling auxiliary device proposed in this invention includes:

[0007] A helical propulsion body includes a columnar main body and helical protrusions on the outer surface of the main body;

[0008] A drive system is connected to the main body to drive the main body to rotate.

[0009] Optionally, the main body is hollow, and at least one end of it is provided with an opening communicating with the inner cavity of the main body;

[0010] The sampling auxiliary device also includes a cone that is rotatably disposed at the opening with its tip facing outward;

[0011] The drive system is connected to the cone to drive the cone to rotate.

[0012] Optionally, the drive system drives the rotation speeds of the main body and the cone to be set differently.

[0013] Optionally, the drive system includes a first motor and a gear transmission assembly. The first motor is disposed inside the main body and has a first motor shaft extending toward one end of the opening. The first motor shaft drives the main body to rotate through a gear transmission assembly.

[0014] The gear transmission assembly includes:

[0015] The driven shaft has one end connected to the first motor shaft via a coupling and the other end connected to the cone to drive the cone to rotate;

[0016] A first transmission gear is disposed within the main body and near the driven shaft side; the first transmission gear is provided with a first transmission shaft that is pulverically connected to the driven shaft; and...

[0017] The internal gear ring hub is located on the inner side wall of the main body, corresponding to the central axis, and meshes with the first transmission gear internally and externally.

[0018] Optionally, the main body has openings at both ends, and the cone has two corresponding openings;

[0019] The first motor includes a dual-rotor motor, wherein the first motor shaft of the dual-rotor motor extends to both ends of the main body, and each end of the first motor shaft drives the main body to rotate through a gear transmission assembly, and the driven shaft of each gear transmission assembly is respectively connected to two cones to drive the two cones to rotate.

[0020] Optionally, the cone is provided with a plurality of protruding ribs extending toward the other end of the main body.

[0021] Optionally, the sampling auxiliary device further includes a steering mechanism connected to the helical propulsion body to drive the helical propulsion body to turn.

[0022] Optionally, the outer side of the spiral propulsion body is fitted with a shell that extends through both ends, and the inner side of the shell is provided with a mounting bracket for rotatably mounting the main body;

[0023] The steering mechanism includes at least one pair of track devices disposed on opposite sides of the housing, each track device comprising:

[0024] Tracks extend along both ends of the outer shell and are disposed on the outside of the outer shell;

[0025] A track drive unit drives the track to reciprocate between the two ends of the outer shell.

[0026] Optionally, each of the track drive devices includes:

[0027] A drive wheel is located at one end of the track and meshes with the track.

[0028] A driven wheel, located at the other end of the track, engages with the track; and...

[0029] The second motor has a second motor shaft extending toward the drive wheel, and the second motor shaft is drive-connected to the drive wheel.

[0030] The present invention also proposes a sampling and testing device, comprising a sampling device, a testing device, and a sampling auxiliary device as described above, wherein the sampling device and the testing device are respectively installed on the sampling auxiliary device.

[0031] In the technical solution provided by this invention, the driving system drives the main body to rotate, thereby causing the spiral protrusions on the outer surface of the main body to rotate. During the rotation, the friction, action, and reaction forces generated between the spiral protrusions and the grain cause relative motion between the spiral protrusions and the grain, thereby causing the spiral protrusions to drive the main body to move within the grain. The driving system drives the automated movement of the sampling auxiliary device within the grain to meet the needs of different sampling depths, eliminating the need for complex sampling tubes, simplifying operations, and reducing manpower. Attached Figure Description

[0032] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0033] Figure 1 This is a schematic diagram of the structure of an embodiment of the sampling auxiliary device of the present invention;

[0034] Figure 2 for Figure 1 Schematic diagram of the structure of the central propeller;

[0035] Figure 3 for Figure 2 A schematic diagram of the drive system.

[0036] Figure 4 for Figure 3 A schematic diagram of the structure of the first transmission gear and the counterweight;

[0037] Figure 5 for Figure 1 Schematic diagram of the tracked device;

[0038] Figure 6 for Figure 5 Schematic diagram of the track drive device;

[0039] Figure 7 for Figure 6 A schematic diagram of the track drive device from another direction;

[0040] Figure 8 for Figure 1 A schematic diagram of the inner shell structure.

[0041] Explanation of icon numbers:

[0042] label name label name 100 Sampling auxiliary device 4 shell 1 propeller 41 Mounting rack 11 main body 5 Tracked device 111 Spiral protrusion 51 track 112 Opening 511 Track teeth 12 cone 52 Track drive unit 121 ribs 521 drive wheel 2 drive system 5211 bevel gear shaft 21 First Motor 5212 drive gear 211 First motor shaft 522 Driven wheel 22 Gear transmission components 523 Second motor 221 Driven shaft 5231 Second motor shaft 2211 Coupling 524 Second drive shaft 2212 belt 5241 bevel gears 222 First transmission gear 53 Supporting framework 2221 First drive shaft 54 Side panel 223 Internal gear ring hub 55 Friction shaft 3 counterweight 56 Friction bearings

[0043] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0044] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0045] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0046] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0047] As the volume of grain storage continues to increase, there are two ways to test various indicators of deep-seated grain: direct sampling and testing, or sensor testing. Currently, both domestically and internationally, direct sampling uses machinery to insert tubes for sampling, while sensor testing involves burying the testing device or cable directly at the fixed location to be tested.

[0048] However, the sampling depth of fixed sampling devices is also limited. As grain silos have moved indoors, sampling devices have gradually transitioned from those for bagged grain to tubular and pneumatic sampling devices. Both tubular and pneumatic sampling devices use tubing as their sampling tubes. The purpose of using tubing is to achieve sampling at different depths. The deepest sampling distance is the combined length of all the tubing. For large grain silos, this requires a large assembly of sampling tubes. Therefore, tubular grain silo sampling devices have significant limitations in practical use. The sampling depth is obviously insufficient, time-consuming and labor-intensive, grains are easily broken, and the representativeness of the samples is defective. For fixed grain sampling devices and sleeve-type grain silo sampling devices, although the sampling efficiency of fixed grain sampling devices is slightly higher than that of sleeve-type grain silo sampling devices, their sampling positions are limited. First, once installed and fixed, it is difficult to move it. Changing its position will require a lot of manpower and resources. Second, fixed grain sampling devices are designed for sampling bulk grain from trucks and are not suitable for other grain loading forms, making them difficult to use for indoor grain silo sampling and testing.

[0049] Compared to other sampling devices, the air-suction sampling device incorporates a fan system and a complete grain storage system. Applying this device to indoor grain silos significantly reduces the workload of grain inspectors and improves work efficiency. However, continuous use has revealed limitations. Because the sampling tube is a sleeve, the sampling depth is still restricted. In areas with uneven grain distribution, the tube struggles to penetrate and suck up the grain. To sample different areas, the extended tube needs to be disassembled, reassembled after determining the location, and the process is complex, time-consuming, and susceptible to environmental factors.

[0050] In view of this, the present invention proposes a sampling auxiliary device 100. Figures 1 to 8 This is an embodiment of the sampling auxiliary device 100 provided by the present invention. The sampling auxiliary device 100 of the present invention can move automatically in the grain to meet the needs of different sampling depths. It eliminates the need for complex sampling tubes, simplifies the operation, and reduces manpower. The sampling auxiliary device 100 will be described below with reference to the specific drawings.

[0051] Reference Figures 1 to 3 The sampling auxiliary device 100 includes a spiral propulsion body 1 and a drive system 2. The spiral propulsion body 1 includes a columnar main body 11 and a spiral protrusion 111 on the outer side of the main body 11. The drive system 2 drives the main body 11 to rotate.

[0052] In the technical solution provided by the present invention, the driving system 2 drives the main body 11 to rotate, thereby driving the spiral protrusion 111 on the outer surface of the main body 11 to rotate. During the rotation, the friction, action force and reaction force generated between the spiral protrusion 111 and the grain cause the spiral protrusion 111 and the grain to move relative to each other, thereby causing the spiral protrusion 111 to drive the main body 11 to move within the grain. The driving system 2 drives the sampling auxiliary device 100 to move automatically within the grain to meet the needs of different sampling depths, eliminating the need for complex sampling tubes, simplifying the operation and reducing manpower.

[0053] The drive system 2 drives the main body 11 to rotate the spiral protrusion 111. The rotation direction and forward direction are related to the spiral direction of the spiral protrusion 111. The spiral protrusion 111 can be a right-handed spiral or a left-handed spiral, and the specific setting is not limited. In this embodiment, the spiral protrusion 111 is a right-handed spiral. When the drive system 2 drives the main body 11 to rotate the spiral protrusion 111, when the spiral protrusion 111 rotates clockwise, the spiral protrusion 111 drives the main body 11 forward; when the drive system 2 drives the main body 11 to rotate the spiral protrusion 111 counterclockwise, the spiral protrusion 111 drives the main body 11 backward, thus realizing the forward and backward movement of the main body 11 within the grain.

[0054] Because the sampling auxiliary device 100 encounters significant pressure when moving deep into the grain, the main body 11 is hollow and has an opening 112 at at least one end communicating with the inner cavity of the main body 11 to facilitate smooth movement of the sampling auxiliary device 100 within the grain. The sampling auxiliary device 100 also includes a cone 12 rotatably disposed at the opening 112 with its tip facing outward. The driving system 2 is connected to the cone 12 to drive its rotation. The shape of the cone 12 is designed to reduce the pressure experienced by the sampling auxiliary device 100 during movement. The rotation of the cone 12 causes the grain to move through friction with it. Thus, in the technical solution of this invention, in addition to reducing contact pressure through its shape, the cone 12 also loosens the grain it contacts, allowing the sampling auxiliary device 100 to move more smoothly within the grain and preventing excessive grain-pushing pressure on the spiral protrusion 111. The main body 11 is hollow, which can reduce the volume and weight, and also free up some space to install the instruments and devices required for testing.

[0055] Furthermore, in order to improve the grain loosening effect of the cone 12, a plurality of protruding ribs 121 extending toward the other end of the main body 11 are provided on the periphery of the cone 12. The specific shape and number of the protruding ribs 121 are not limited. In this embodiment, three protruding ribs 121 are provided at intervals on the periphery of the cone 12, and the protruding ribs 121 are cone-shaped to improve the grain loosening effect, thereby making the sampling auxiliary device 100 move more smoothly, reducing the pressure it is subjected to, increasing the service life of the device, and making it less prone to damage.

[0056] There are various ways to improve the grain-loosening effect of the cone 12, and no specific method is limited. In addition to setting the rib 121, other ways to improve the grain-loosening effect include setting the rotation speed of the main body 11 and the cone 12 driven by the drive system 2 to be differentiated. Either of these two settings can be used, or they can coexist; obviously, coexisting will have a better effect.

[0057] To ensure that the rotational speeds of the main body 11 and the cone 12 driven by the drive system 2 are differentiated, in this design, the drive system 2 includes a first motor 21 and a gear transmission assembly 22. The first motor 21 is located inside the main body 11 and has a first motor shaft 211 extending towards one end of the opening 112. The first motor shaft 211 drives the main body 11 to rotate via the gear transmission assembly 22. The gear transmission assembly 22 includes a driven shaft 221, a first transmission gear 222, and an internal gear ring hub. 223, one end of the driven shaft 221 is connected to the first motor shaft 211 via a coupling 2211, and the other end is connected to the cone 12 to drive the cone 12 to rotate. The first transmission gear 222 is located inside the main body 11 and is located near the side of the driven shaft 221. The first transmission gear 222 is provided with a first transmission shaft 2221 that is connected to the driven shaft 221. The internal gear ring hub 223 is located on the inner side wall of the main body 11 corresponding to the central axis and meshes with the first transmission gear 222 internally and externally. After the first motor 21 is powered on, it drives the driven shaft 221 to rotate through the first motor shaft 211 and the coupling 2211, thereby driving the cone 12 to rotate. At the same time, the driven shaft 221 is connected to the first transmission shaft 2221 of the first transmission gear 222 on the side. The transmission connection method is not limited. In this embodiment, the driven shaft 221 and the first transmission shaft 2221 are driven by a belt 2212, which can effectively prevent overload. Furthermore, two belts 2212 are provided to enhance the overload prevention effect. The internal gear ring hub 223 is located on the inner side wall of the main body 11 corresponding to the central axis, and meshes internally and externally with the first transmission gear 222. The first transmission gear 222 drives the internal gear ring hub 223 to rotate, thereby driving the main body 11 to rotate. Since the driven shaft 221 drives the main body 11 sequentially through the first transmission gear 222 and the internal gear ring hub 223, while the driven shaft 221 directly drives the cone 12, the rotation of the main body 11 and the cone 12 is asynchronous, and the rotation speed is set differently, thereby improving the grain loosening effect.

[0058] Since the first transmission gear 222 is located inside the main body 11 and near the side of the driven shaft 221, to prevent the center of gravity of the sampling auxiliary device 100 from shifting and causing deviation in its movement position, the sampling auxiliary device 100 also includes a counterweight 3. The counterweight 3 is located inside the main body 11 and is located on opposite sides of the driven shaft 221 to the first transmission gear 222. The specific arrangement of the first transmission gear 222, the internal gear ring hub 223, and the counterweight 3 is not limited. In this embodiment, the first transmission shaft 2221 of the first transmission gear 222 is connected to the gear carrier located on the internal gear ring hub 223, the counterweight 3 is located inside the main body 11, and the internal gear ring hub 223 is threaded onto the inner sidewall of the main body 11.

[0059] Since the sampling auxiliary device 100 needs to penetrate and withdraw from the grain, to facilitate movement in both penetration and withdrawal states, the main body 11 has openings 112 at both ends. Two cones 12 are provided corresponding to the openings 112. The first motor 21 includes a dual-rotor motor, with the first motor shaft 211 extending to both ends of the main body 11. Each end of the first motor shaft 211 drives the main body 11 to rotate via a gear transmission assembly 22. The driven shaft 221 of each gear transmission assembly 22 is connected to two cones 12 to drive them to rotate. The cones 12 at both ends rotate simultaneously, ensuring that the main body 11 has a cone 12 at each end to help reduce forward pressure and loosen the grain when moving forward and backward within the grain, making forward and backward movement more efficient.

[0060] The specific configuration of the main body 11 is not limited. In one embodiment, the main body 11 is integrally formed, with openings 112 and cones 12 at both ends. In this embodiment, the main body 11 includes two parts, which are arranged sequentially from one end to the other along the main body 11. The first motor shaft 211 of the dual rotor motor extends into the two parts, and the two gear transmission components 22 are respectively disposed in the two parts. The two parts are sealed and connected by a rubber sealing ring.

[0061] In actual sampling requirements, besides sampling at different depths, sampling at different positions at the same depth is also necessary. If the sampling device can only move forward and backward in one direction, sampling at different positions at the same depth requires the device to repeatedly go in and out, then re-determine the position and go in again, which is a complex and time-consuming process. To facilitate sampling at different positions at the same depth, the sampling auxiliary device 100 in the technical solution of this invention also includes a steering mechanism. The steering mechanism is connected to the spiral propulsion body 1 to drive the spiral propulsion body 1 to turn, thereby directly driving the device to turn to different positions at the same depth.

[0062] There are various types of steering mechanisms, and no specific one is limited. In one embodiment, a steering wheel device can be set on the main body 11 to drive the main body 11 to turn. However, since the sampling auxiliary device 100 enters the grain warehouse to perform operations, the steering wheel device cannot achieve a good sealing effect. The steering wheel device has a small contact area with the grain, and the friction is insufficient to achieve the purpose of internal turning. The working environment inside the warehouse is complex, which is not conducive to the operation of the steering wheel device. In this embodiment, the outer side of the spiral propulsion body 1 is fitted with a shell 4 that is open at both ends. The inner side of the shell 4 is provided with a mounting bracket 41 for rotatably mounting the main body 11. The two ends are open so that the grain is transported from one end of the main body 11 to the other end by the spiral protrusion 111 without affecting the movement of the grain. The steering mechanism includes at least a pair of track devices 5 provided on opposite sides of the shell 4. Each track device 5 includes a track 51 and a track drive device 52. The track 51 extends along both ends of the shell 4 and is provided on the outer side of the shell 4. The track drive device 52 drives the track 51 to reciprocate between the two ends of the shell 4. The tracked device 5 is better suited to the complex movement scenarios inside the grain silo. With the tracked devices 5 located on opposite sides of the outer shell 4, the two tracks 51 can assist the sampling auxiliary device 100 in advancing or retreating when rotating in opposite directions. This, combined with the movement of the spiral propulsion body 1, makes movement easier. When rotating in the same direction, the sampling auxiliary device 100 shifts as a whole, thus achieving steering. The steering mechanism is separately installed on the outer shell 4 and the spiral propulsion body 1, ensuring no interference between them. This also facilitates maintenance in case of a problem with a single component, making it highly practical.

[0063] It is worth mentioning that the number of track devices 5 is unlimited. In this embodiment, the steering mechanism includes two pairs of track devices 5, and the two pairs of track devices 5 are arranged opposite each other on the four sides of the outer shell 4, which makes the movement more stable and the steering angle more precise and controllable. If the sizing auxiliary device 100 needs to be steered, all four track devices 5 are in operation. One pair of track devices 5 moves in opposite directions, and the other pair of track devices 5 moves in the same direction, which can achieve a certain angle of offset movement. The more track devices 5 are set, the more precise the steering angle will be. However, due to the limited space of the overall device and the weight limitation, the two pairs of track devices 5 arranged opposite each other are more effective.

[0064] There are multiple types of track drive devices 52, and no specific limitation is made. In one embodiment, each track drive device 52 includes a drive wheel 521, a driven wheel 522, and a second motor 523. The drive wheel 521 is located at one end of the track 51 and engages with the track 51. The driven wheel 522 is located at the other end of the track 51 and engages with the track 51. The second motor 523 has a second motor shaft 5231 extending toward the drive wheel 521, and the second motor shaft 5231 is drively connected to the drive wheel 521. The second motor 523 drives the drive wheel 521 and thus drives the track 51 through the second motor shaft 5231. Since the track 51 extends along both ends of the housing 4 and is located on the outside of the housing 4, in order to reduce the volume of the sampling auxiliary device 100 and make full use of the overall space, please refer to [reference needed]. Figure 7 In this embodiment, the second motor 523 belongs to the middle space of the track 51. The drive wheel 521 includes a bevel gear shaft 5211 extending along the width direction of the track 51 and two drive gears 5212 coaxially disposed at both ends of the bevel gear shaft 5211. The two drive gears 5212 mesh with the track 51. Each track drive device 52 also includes a second transmission shaft 524. The second transmission shaft 524 extends in the same direction as the second motor shaft 5231. One end of the second transmission shaft 524 is connected to the second motor shaft 5231 through gear meshing, and the other end extends toward the bevel gear shaft 5211 with a bevel gear 5241. The bevel gear 5241 meshes with the bevel gear shaft 5211. Through the transmission between each stage, the second motor 523 drives the track 51 to rotate. Through the combination of spur gear transmission and bevel gear transmission, the overall transmission is more efficient and stable.

[0065] Since the sampling auxiliary device 100 will come into contact with dust or small grain particles after entering the grain silo, if the dust or small grain particles are pressurized and enter the interior of the sampling auxiliary device 100, it will damage the device, making it unrecoverable if it is damaged and left in the grain silo. In this embodiment, the track device 5 is configured as a structure that covers the outside of the outer shell 4. The track device 5 also includes a support frame 53, which extends along both ends of the outer shell 4 and is located on the outside of the outer shell 4. The track 51 surrounds the support frame 53. The drive wheel 521 and the driven wheel 522 are respectively located at both ends of the support frame 53. Side plates 54 are provided on opposite sides of the track 51 in the width direction to enclose a sealed space with the track 51 and the support frame 53. The second motor 523 is located in the sealed space.

[0066] Furthermore, in order to reduce the friction between the various structures included in the track device 5, various specific arrangements are possible, and there is no specific limitation. In this embodiment, the track device 5 further includes a plurality of friction shafts 55. The plurality of friction shafts 55 are arranged at intervals along the length direction of the track 51 at the interval between the track 51 and the support frame 53 to reduce the friction between the track 51 and the support frame 53. Each friction shaft 55 extends along the width direction of the track 51 to two side plates 54. The two side plates 54 are provided with friction bearings 56 to sleeve the two ends of each friction shaft 55 to reduce the friction between the plurality of friction shafts 55 and the side plates 54.

[0067] To increase the friction between the track 51 and the grain, and to improve the effect of the track 51 in driving the sampling auxiliary device 100, a plurality of track teeth 511 are arranged sequentially along the length direction on the outer side of the track 51, and each track tooth 511 extends along the width direction of the track 51. This improves the grain gripping effect, increases the contact area with the grain, increases the friction, and promotes the movement of the device. At the same time, the plurality of track teeth 511 can evenly push the grain, and further drive the device to move through action and reaction forces.

[0068] This invention also proposes a sampling and testing device, which includes a sampling device, a testing device, and a sampling auxiliary device 100. The sampling device and the testing device are respectively installed on the sampling auxiliary device 100. The specific structure of the sampling auxiliary device 100 is as described in the above embodiments. Since this sampling and testing device adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments. Further details will not be elaborated here.

[0069] It should be noted that the specific structure of the sampling and testing device is not limited in this invention.

[0070] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made under the inventive concept of the present invention using the contents of the present invention specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A sampling auxiliary device, characterized in that, include: A helical propulsion body includes a columnar main body and helical protrusions on the outer surface of the main body; A drive system is connected to the main body to drive the main body to rotate; The main body is hollow, and at least one end of it has an opening that communicates with the inner cavity of the main body; The sampling auxiliary device also includes a cone that is rotatably disposed at the opening with its tip facing outward; The drive system is connected to the cone to drive the cone to rotate; The drive system drives the main body and the cone to rotate at different speeds; The drive system includes a first motor and a gear transmission assembly. The first motor is located inside the main body and has a first motor shaft extending toward one end of the opening. The first motor shaft drives the main body to rotate through a gear transmission assembly. The gear transmission assembly includes: The driven shaft has one end connected to the first motor shaft via a coupling and the other end connected to the cone to drive the cone to rotate; A first transmission gear is disposed within the main body and near the driven shaft side; the first transmission gear is provided with a first transmission shaft that is pulverically connected to the driven shaft; and... The internal gear ring hub is located on the inner side wall of the main body, corresponding to the central axis, and meshes with the first transmission gear internally and externally. The sampling auxiliary device also includes a steering mechanism, which is connected to the screw propeller to drive the screw propeller to turn. The outer side of the spiral propulsion body is fitted with a shell that extends through both ends, and the inner side of the shell is provided with a mounting bracket for rotatably mounting the main body; The steering mechanism includes at least one pair of track devices disposed on opposite sides of the housing, each track device comprising: Tracks extend along both ends of the outer shell and are disposed on the outside of the outer shell; A track drive unit drives the track to reciprocate between the two ends of the outer shell.

2. The sampling auxiliary device as described in claim 1, characterized in that, The main body is provided with openings at both ends, and the cone is provided with two corresponding openings; The first motor includes a dual-rotor motor, wherein the first motor shaft of the dual-rotor motor extends to both ends of the main body, and each end of the first motor shaft drives the main body to rotate through a gear transmission assembly, and the driven shaft of each gear transmission assembly is respectively connected to two cones to drive the two cones to rotate.

3. The sampling auxiliary device as described in claim 1, characterized in that, The cone has multiple protruding ribs extending towards the other end of the main body.

4. The sampling auxiliary device as described in claim 1, characterized in that, Each of the track drive units includes: A drive wheel is located at one end of the track and meshes with the track. A driven wheel, located at the other end of the track, engages with the track; and... The second motor has a second motor shaft extending toward the drive wheel, and the second motor shaft is drive-connected to the drive wheel.

5. A sampling and testing device, characterized in that, It includes a sampling device, a detection device, and a sampling auxiliary device as described in any one of claims 1 to 4, wherein the sampling device and the detection device are respectively installed on the sampling auxiliary device.

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