A grain bin sampling device

Abstract

The application discloses a grain storehouse sampling device, which comprises a telescopic down-drilling mechanism for drilling into a grain pile downwardly; a down-drilling support mechanism comprises two support structures, which are installed on the telescopic down-drilling mechanism and are arranged in an up-down direction at intervals, and are used for assisting the support of the vertical drilling of the telescopic down-drilling mechanism; a down-drilling steering support mechanism is installed on the telescopic down-drilling mechanism and is formed with two steering support parts, which are arranged in an up-down direction at intervals and are arranged in a staggered mode, and are used for assisting the steering of the telescopic down-drilling mechanism; each steering support part is arranged in a gradually inwardly inclined mode from top to bottom at a side end away from the telescopic down-drilling mechanism; and a sampling mechanism is arranged at a lower end of the telescopic down-drilling mechanism. The telescopic down-drilling mechanism cooperates with the down-drilling support mechanism and the down-drilling steering support mechanism to realize the upward movement, sinking and steering of the grain storehouse sampling device in the grain pile, so that the grain storehouse sampling device reaches each region of the grain storehouse, grain samples in each region are obtained, the sampling times are reduced, and the operation is more convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of grain store sampling, in particular to a grain store sampling device. BACKGROUND

[0002] Grain condition monitoring is an important link in the storage process, which generally obtains grain samples in the target area of the grain store through a sampling mechanism, and detects the grain samples to obtain relevant information of the grain in the grain store.

[0003] At present, the sampling mechanism can only vertically drill into the interior of the grain store, and the sampling range is small. In order to obtain grain samples in each area of the grain store, multiple sampling operations are required, which is inconvenient to operate. SUMMARY

[0004] The main purpose of the present application is to provide a grain store sampling device, which aims to solve the problem that the current sampling mechanism can only vertically drill into the interior of the grain store, the sampling range is small, multiple sampling operations are required to obtain grain samples in each area of the grain store, and the operation is inconvenient.

[0005] To achieve the above purpose, the present application provides a grain store sampling device, comprising:

[0006] A telescopic downhole drilling mechanism is used to drill downward into the grain pile;

[0007] A downhole drilling support mechanism includes two support structures, which are installed on the telescopic downhole drilling mechanism and are spaced apart along the vertical direction, and are used for auxiliary support of the vertical drilling of the telescopic downhole drilling mechanism;

[0008] A downhole drilling steering support mechanism is installed on the telescopic downhole drilling mechanism, the downhole drilling steering support mechanism is formed with two steering support parts, the two steering support parts are spaced apart and staggered along the vertical direction, and are used for auxiliary support of steering of the telescopic downhole drilling mechanism, and each steering support part is inclined inward from top to bottom at the side end away from the telescopic downhole drilling mechanism; and

[0009] A sampling mechanism is arranged at the lower end of the telescopic downhole drilling mechanism to sample the grain in the grain store.

[0010] Optionally, the telescopic downhole drilling mechanism includes a housing and a telescopic structure arranged in sequence along the vertical direction, the housing is formed with an installation cavity with an open lower end, the side wall of the installation cavity is provided with a first through hole, and the telescopic structure is provided with a second through hole;

[0011] The two steering support parts are arranged in the installation cavity and the telescopic structure respectively to correspondingly protrude through the first through hole and the second through hole to support the steering of the telescopic downhole drilling mechanism;

[0012] Two of the support structures are arranged between the two turning support parts.

[0013] Optionally, the downhole turning support mechanism comprises two turning support structures arranged in an up-down direction, each of the turning support structures comprising:

[0014] The rotating frame comprises a support column extending in an up-down direction, a bearing plate arranged at an upper end of the support column, and a limiting plate arranged at a lower end of the support column, the limiting plate being provided with two limiting grooves arranged in an alternating manner;

[0015] The pushing member is arranged between the bearing plate and the limiting plate and movably mounted on the support column in the up-down direction;

[0016] Two turning support plate sets are movably mounted below the limiting plate and correspondingly arranged with the two limiting grooves, each of the turning support plate sets comprising two turning support plates arranged in an opposite manner, each of the turning support plates being provided with an abutting protrusion, the abutting protrusion penetrating the corresponding limiting groove to abut against the pushing member, the turning support part comprising the turning support plates; and

[0017] A first driving motor is arranged above the rotating frame and drivingly connected to the bearing plate to drive the rotating frame to rotate, so that the pushing member can selectively push out one of the turning support plates.

[0018] Optionally, each of the turning support structures further comprises a plurality of reset members arranged between two adjacent turning support plates, for active reset of the turning support plates.

[0019] Optionally, each of the turning support structures further comprises:

[0020] A first screw-nut structure comprising a first screw rod and a first nut arranged in cooperation, the first screw rod extending in the up-down direction, and the first nut being mounted on the pushing member; and

[0021] A second driving motor is mounted on the bearing plate, and the first screw rod is arranged at an output shaft end of the second driving motor to drive the pushing member to move in the up-down direction.

[0022] Optionally, the abutting protrusion is provided with a roller.

[0023] Optionally, the side wall of the mounting cavity is provided with a plurality of first through holes.

[0024] The telescopic structure comprises:

[0025] The telescopic sleeve extends in the up-down direction, and comprises an inner sleeve and an outer sleeve which are sleeved with each other, a sleeving length between the inner sleeve and the outer sleeve is adjustable, an upper end of the inner sleeve is connected with a lower end of the shell, and the outer sleeve is provided with a plurality of second through holes; and

[0026] The telescopic downhole mechanism further comprises a telescopic driving structure, and the telescopic driving structure comprises:

[0027] The support sleeve extends in the up-down direction, and one end of the support sleeve is fixed with the shell;

[0028] The second screw nut structure comprises a second screw and a second nut which are matched with each other, the second nut is arranged at the other end of the support sleeve and is arranged in communication with the support sleeve, the second screw extends in the up-down direction and partially extends into the support sleeve; and

[0029] The third driving motor is arranged in the outer sleeve, an output shaft end of the third driving motor is drivingly connected with the second screw to drive the outer sleeve to move in the up-down direction;

[0030] The two support structures are respectively arranged in the mounting cavity and the outer sleeve, each support structure is formed with a movable support part, and the two movable support parts can respectively extend to the first through hole and the second through hole to assist in supporting the relative movement of the inner sleeve and the outer sleeve.

[0031] Optionally, each support structure comprises:

[0032] The mounting shell comprises an upper shell and a lower shell which is sleeved in the upper shell, the lower shell is formed with a containing cavity which is open upward, a partition plate is arranged in the containing cavity to form a first containing cavity and a second containing cavity on the upper side and the lower side of the partition plate, a plurality of avoiding holes are arranged in the side wall of the first containing cavity, and the partition plate is provided with two sliding grooves which are arranged alternately;

[0033] The driving connection plate is provided with two arc-shaped groove groups, the two arc-shaped groove groups are arranged in one-to-one correspondence with the two sliding grooves, and each arc-shaped groove group comprises two arc-shaped grooves which are arranged at intervals;

[0034] The two downhole support plate groups are arranged in the first containing cavity and arranged in one-to-one correspondence with the two sliding grooves, each downhole support plate group comprises two downhole support plates which are arranged at intervals and oppositely, each downhole support plate is provided with a sliding convex, and the sliding convex is sequentially arranged in the sliding groove and the arc-shaped groove which are arranged correspondingly; and

[0035] A torque motor is arranged in the second accommodating cavity, an output shaft of the torque motor is arranged towards the first accommodating cavity, and is drivingly connected to the driving connection plate, so that the lower drill support plate can be extended out of the telescopic lower drill mechanism through the avoiding hole, and can be retracted into the first accommodating cavity;

[0036] The movable support part comprises two groups of lower drill support plates.

[0037] Optionally, the sampling mechanism comprises:

[0038] A protective shell is formed with an accommodating channel extending in the up-down direction.

[0039] A hopper is rotatably arranged in the accommodating channel, and is used to store grain samples.

[0040] A sampling structure is arranged in the hopper, the sampling structure comprises a rotating shaft extending in the up-down direction, and a spiral blade extending in the up-down direction and arranged around the rotating shaft, the rotating shaft and the spiral blade jointly define a sampling groove for accommodating grain, and an upper end of the rotating shaft is provided with a first gear; and

[0041] A sampling driving structure comprises a sliding sleeve and a sampling driving motor, the sliding sleeve is provided with a mounting bracket, the mounting bracket is fixed to the upper end of the rotating shaft, the sampling driving motor is arranged on the mounting bracket, the sliding sleeve is movably arranged in the protective shell in the up-down direction and above the sampling structure, an output shaft of the sampling driving motor is provided with a second gear, the second gear is engaged with the first gear, and the sampling structure is driven to rotate for sampling; and

[0042] The movement driving assembly comprises:

[0043] A mounting plate is connected to a lower end of the telescopic lower drill mechanism and is arranged above the mounting bracket.

[0044] A fourth driving motor is arranged on the mounting bracket, and an output shaft of the fourth driving motor is provided with a third gear; and

[0045] A third screw nut structure is arranged between the mounting plate and the mounting bracket, the third screw nut structure comprises a third screw and a third nut which are matched with each other, the third screw is arranged at a lower end of the mounting plate and extends in the up-down direction, the third nut is arranged at an upper end of the mounting bracket, an outer side of the third nut is provided with a fourth gear, the fourth gear is engaged with the third gear, the third nut is driven to move in the up-down direction, so that the sampling structure can be extended out of the lower end of the protective shell.

[0046] Optionally, the lower end of the protective shell is arranged in a tapered manner.

[0047] The technical scheme of the present application, the grain storehouse sampling device comprises a telescopic downhole mechanism, a downhole support mechanism and a downhole steering support mechanism, the telescopic downhole mechanism is used to drill downward into the grain pile; the downhole support mechanism comprises two support structures, the two support structures are installed on the telescopic downhole mechanism and are arranged in an up-down direction, and are used for auxiliary support of vertical drilling of the telescopic downhole mechanism; the downhole steering support mechanism is installed on the telescopic downhole mechanism, the downhole steering support mechanism is formed with two steering support parts, the two steering support parts are arranged in an up-down direction and are staggered, and are used for auxiliary support of steering of the telescopic downhole mechanism, and each steering support part is arranged in a gradually inward inclined manner from top to bottom on one side end away from the telescopic downhole mechanism; the sampling mechanism is arranged at the lower end of the telescopic downhole mechanism and is used for sampling grains in the grain storehouse. The telescopic downhole mechanism cooperates with the downhole support mechanism and the downhole steering support mechanism to realize upward movement, sinking and steering of the grain storehouse sampling device in the grain pile, so that the grain storehouse sampling device can steer in the grain pile, so that the grain storehouse sampling device can reach each region of the grain storehouse to obtain grain samples of each region, increase the number of grain samples, reduce the sampling frequency, and make the operation more convenient. The sensor can be arranged on the grain storehouse sampling device, so that the temperature and humidity of the grains in the grain storehouse can be obtained during the sampling process. BRIEF DESCRIPTION OF DRAWINGS

[0048] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the following embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0049] Figure 1 The structural schematic diagram of an embodiment of the grain storehouse sampling device provided by the present application is shown in the figure.

[0050] Figure 2 For Figure 1 The structural schematic diagram of part of the grain storehouse sampling device is shown in the figure.

[0051] Figure 3 For Figure 2 The structural schematic diagram of the downhole steering support mechanism is shown in the figure.

[0052] Figure 4 For Figure 2 The structural schematic diagram of the telescopic downhole mechanism is shown in the figure.

[0053] Figure 5 For Figure 2 The structural schematic diagram of the support structure is shown in the figure.

[0054] Figure 6 for Figure 4 Exploded view of the central support structure;

[0055] Figure 7 This is a schematic diagram showing the assembly relationship between the lower shell, the support plate assembly, and the drive connection plate.

[0056] Figure 8 for Figure 7 Another structural diagram from a different perspective;

[0057] Figure 9 for Figure 2 Schematic diagram of the sampling mechanism;

[0058] Figure 10 for Figure 9 A schematic diagram of the structure of the intermediate silo.

[0059] Explanation of icon numbers:

[0060]

[0061] 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

[0062] 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.

[0063] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0064] In addition, if the description of "first", "second" and the like is involved in the embodiments of the present application, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one of the features. In addition, the meaning of "and / or" appearing throughout the text includes three parallel schemes, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection required by the present application.

[0065] Grain monitoring is an important part of the storage link, generally through the sampling mechanism, the grain sample of the target area in the grain depot is obtained, and the grain sample is detected to obtain the related information of the grain in the grain depot.

[0066] At present, the sampling mechanism can only vertically drill into the inside of the grain depot, and the sampling range is small. In order to obtain the grain sample of each area in the grain depot, multiple sampling needs to be carried out, which is inconvenient to operate.

[0067] In view of this, the present application provides a grain depot sampling device, the telescopic downhole drilling mechanism cooperates with the downhole drilling support mechanism and the downhole drilling steering support mechanism respectively, so as to realize the upward movement, sinking and steering of the grain depot sampling device in the grain pile, the steering of the grain depot sampling device in the grain pile can be realized, so that the grain depot sampling device reaches each area of the grain depot to obtain the grain sample of each area, improves the number of grain samples, reduces the sampling times, and is more convenient to operate. Figures 1 to 10 As shown in the figure, an embodiment of the grain depot sampling device provided by the present application is shown.

[0068] As shown in the figure, an embodiment of the grain depot sampling device provided by the present application is shown. Figure 1 and Figure 2As shown, the grain store sampling device 100 provided by the present application comprises a telescopic downhole mechanism 1, a downhole support mechanism 3 and a downhole steering support mechanism 2, the telescopic downhole mechanism 1 is used to drill downward into the grain pile; the downhole support mechanism 3 comprises two support structures 31, the two support structures 31 are installed on the telescopic downhole mechanism 1 and are arranged in an up-down direction, and are used for auxiliary support of the telescopic downhole mechanism 1 drilling vertically; the downhole steering support mechanism 2 is installed on the telescopic downhole mechanism 1, the downhole steering support mechanism 2 is formed with two steering support parts 2a, the two steering support parts 2a are arranged in an up-down direction and are staggered, and are used for auxiliary support of steering of the telescopic downhole mechanism 1, and each steering support part 2a is arranged in a gradually inward inclined manner from top to bottom away from one side end of the telescopic downhole mechanism 1; the sampling mechanism 4 is arranged at the lower end of the telescopic downhole mechanism 1, and is used for sampling grains in the grain store.

[0069] In the technical scheme of the present application, the grain store sampling device 100 comprises a telescopic downhole mechanism 1, a downhole support mechanism 3 and a downhole steering support mechanism 2, the telescopic downhole mechanism 1 is used to drill downward into the grain pile; the downhole support mechanism 3 comprises two support structures 31, the two support structures 31 are installed on the telescopic downhole mechanism 1 and are arranged in an up-down direction, and are used for auxiliary support of the telescopic downhole mechanism 1 drilling vertically; the downhole steering support mechanism 2 is installed on the telescopic downhole mechanism 1, the downhole steering support mechanism 2 is formed with two steering support parts 2a, the two steering support parts 2a are arranged in an up-down direction and are staggered, and are used for auxiliary support of steering of the telescopic downhole mechanism 1, and each steering support part 2a is arranged in a gradually inward inclined manner from top to bottom away from one side end of the telescopic downhole mechanism 1; the sampling mechanism 4 is arranged at the lower end of the telescopic downhole mechanism 1, and is used for sampling grains in the grain store. The telescopic downhole mechanism 1 cooperates with the downhole support mechanism 3 and the downhole steering support mechanism 2 to realize upward movement, sinking and steering of the grain store sampling device 100 in the grain pile, the grain store sampling device 100 can steer in the grain pile, so that the grain store sampling device 100 reaches each area of the grain store to obtain grain samples of each area, the number of grain samples is increased, the sampling frequency is reduced, the operation is more convenient, a sensor can be arranged on the grain store sampling device 100, so that the temperature and humidity of grains in the grain store can be obtained during the sampling process.

[0070] In the present embodiment, as shown in Figure 2As shown, the telescopic downhole mechanism 1 comprises a housing 11 and a telescopic structure 12 arranged in sequence along the up-down direction, the housing 11 is formed with a mounting cavity 111 with an open lower end, the side wall of the mounting cavity 111 is provided with a first through hole, and the telescopic structure 12 is provided with a second through hole; two turning support parts 2a are respectively arranged in the mounting cavity 111 and the telescopic structure 12 to correspondingly extend through the first through hole and the second through hole for turning support of the telescopic downhole mechanism 1; and two support structures 31 are arranged between the two turning support parts 2a. After the grain bin sampling device 100 is drilled into the grain pile, the two support structures 31 do not work, that is, they do not assist in supporting the telescopic downhole mechanism 1. Therefore, when the two turning support parts 2a extend through the first through hole and the second through hole respectively, the telescopic downhole mechanism 1 performs telescopic movement to make the whole grain bin sampling device 100 generate a deflection torque, thereby realizing turning in the grain pile to reach each area of the grain bin, and obtaining grain samples of each area through the sampling mechanism 4.

[0071] Specifically, in the present embodiment, as Figure 2 and Figure 3As shown, the downhole steering support mechanism 2 comprises two steering support structures 21 arranged in up-down direction, each of the steering support structures 21 comprises a rotating frame 211, a pushing member 22, two steering support plate sets 23 and a first driving motor 24, the rotating frame 211 comprises a support column 2111 extending in up-down direction, a bearing plate 2112 arranged at the upper end of the support column 2111, and a limiting plate 2113 arranged at the lower end of the support column 2111, the limiting plate 2113 is provided with two limiting grooves 2113a arranged in staggered manner; the pushing member 22 is located between the bearing plate 2112 and the limiting plate 2113, and is movably mounted on the support column 2111 in up-down direction; two steering support plate sets 23 are movably mounted below the limiting plate 2113, and are arranged in one-to-one correspondence with the two limiting grooves 2113a, each of the steering support plate sets 23 comprises two steering support plates 231 arranged oppositely, each of the steering support plates 231 is provided with an abutting convex 2311 penetrating the corresponding limiting groove 2113a to abut against the pushing member 22, the steering support part 2a comprises the steering support plates 231; the second driving motor 28 is arranged above the rotating frame 211 and is drivingly connected with the bearing plate 2112 to drive the rotating frame 211 to rotate, so that the pushing member 22 can selectively push out one of the steering support plates 231. In this way, when the grain silo sampling device 100 is steering, first, the steering support structure 21 located at the upper position works, at this time, the pushing member 22 in the steering support structure 21 located at the upper position pushes the steering support plate 231 and makes the steering support plate 231 extend from the first penetrating hole; then, the steering support structure 21 located at the lower position works, at this time, the pushing member 22 in the steering support structure 21 located at the lower position pushes out the corresponding steering support plate 231 (arranged oppositely with the steering support plate 231 pushed out by the steering support structure 21 located at the upper position) and makes the steering support plate 231 extend from the second penetrating hole, finally, the telescopic downhole mechanism 1 performs telescopic movement to make the whole grain silo sampling device 100 generate a deflection torque, thereby realizing steering in the grain pile to reach each area of the grain silo, the rotating frame 211 is rotated by the first driving motor 24 to selectively push out one of the steering support plates 231 in the steering support structure 21, thereby realizing steering of the grain silo sampling device 100 in two directions.

[0072] In order to make each of the steering support structures 21 work continuously, the steering support plate 231 reset structure is provided. In this embodiment, as shown in Figure 3As shown, each of the turning support structure 21 further comprises a plurality of reset members 25, the plurality of reset members 25 are respectively arranged between two adjacent turning support plates 231, for active reset of the turning support plates 231. In this way, when the pushing member 22 pushes the turning support plates 231, the corresponding reset members 25 are deformed, and when the pushing member 22 moves upward, the reset members 25 restore the deformation to pull the turning support plates 231 to reset, thereby ensuring that the turning support structure 21 can work continuously.

[0073] The pushing member 22 is movably arranged in the up-down direction to be able to push the corresponding turning support plates 231, thereby realizing the turning of the grain silo sampling device 100. In the embodiment, as shown in the figure, Figure 3 As shown, each of the turning support structure 21 further comprises a first screw rod 26 nut structure and a second driving motor 28, the first screw rod 26 nut structure comprises a first screw rod 26 and a first nut 27 that cooperate with each other, the first screw rod 26 extends in the up-down direction, and the first nut 27 is installed on the pushing member 22; the second driving motor 28 is installed on the bearing plate 2112, and the first screw rod 26 is arranged at the output shaft end of the second driving motor 28 to drive the pushing member 22 to move in the up-down direction. In this way, when the grain silo sampling device 100 turns, the second driving motor 28 works to make the first screw rod 26 rotate to drive the pushing member 22 to move downward, thereby pushing the corresponding turning support plates 231 to support the turning of the grain silo sampling device 100 and realize the turning of the grain silo sampling device 100.

[0074] In the embodiment, the abutting convex part 2311 is provided with a roller. In this way, the pushing member 22 and the turning support plates 231 are in rolling contact, reducing the wear between the pushing member 22 and the abutting convex part 2311 and improving the service life of the downhole turning support mechanism 2.

[0075] In the embodiment, as shown in the figure, Figure 4As shown, the side wall of the mounting cavity 111 is provided with a plurality of first through holes; the telescopic structure 12 comprises a telescopic sleeve 121 and a telescopic driving structure 13, the telescopic sleeve 121 extends upward and downward, the telescopic sleeve 121 comprises an inner sleeve 1211 and an outer sleeve 1212 which are sleeved with each other, the sleeving length between the inner sleeve 1211 and the outer sleeve 1212 is adjustable, the upper end of the inner sleeve 1211 is connected with the lower end of the shell 11, and the outer sleeve 1212 is provided with a plurality of second through holes; the telescopic downhole drilling mechanism 1 further comprises a telescopic driving structure 13, the telescopic driving structure 13 comprises a support sleeve 131, a second screw rod 132 nut structure and a third driving motor 134, the support sleeve 131 extends upward and downward, one end of the support sleeve 131 is fixed with the shell 11; the second screw rod nut structure comprises a second screw rod 132 and a second nut 133 which cooperate with each other, the second nut 133 is arranged at the other end of the support sleeve 131 and is arranged in communication with the support sleeve 131, the second screw rod 132 extends upward and downward and partially extends into the support sleeve 131; the third driving motor 134 is arranged in the outer sleeve 1212, the output shaft end of the third driving motor 134 is drivingly connected with the first screw rod 26 to drive the outer sleeve 1212 to move upward and downward; two support structures 31 are respectively arranged in the mounting cavity 111 and the outer sleeve 1212, each support structure 31 is formed with a movable support part 31a, and the two movable support parts 31a can respectively extend to the first through holes and the second through holes to assist the relative movement of the inner sleeve 1211 and the outer sleeve 1212. After the grain bin sampling device 100 enters the grain pile, first, the support structure 31 at the lower end works, so that the movable support part 31a of the support structure 31 at the lower end extends out of the outer sleeve 1212 to fix the lower end of the telescopic structure 12, at this time, the third driving motor 134 rotates forward to drive the second screw rod 132 to rotate, so that the inner sleeve 1211 moves downward, and the length of the whole grain bin sampling device 100 is shortened; then, the support structure 31 at the upper end works, so that the movable support part 31a of the support structure 31 at the upper end extends out of the outer sleeve 1212 to fix the upper end of the telescopic structure 12, at this time, the movable support part 31a of the support structure 31 at the lower end is retracted into the outer sleeve 1212, and the support structure 31 at the lower end is retracted, so that the third driving motor 134 reverses to drive the second screw rod 132 to rotate, so that the outer sleeve 1212 moves downward, and the length of the whole grain bin sampling device 100 is lengthened, and the downhole drilling of the grain bin sampling device 100 is realized.It should be noted that the grain storehouse sampling device 100 can also realize upward movement, and the principle is the same as that of the down drilling, which will not be described in detail here.

[0076] In this embodiment, as shown in Figures 5 to 8 each of the support structures 31 includes a mounting shell 311, a driving connecting plate 312, two down drilling support plate groups 313, and a torque motor 315. The mounting shell 311 includes an upper shell 3111 and a lower shell 3112 sleeved in the upper shell 3111. The lower shell 3112 is formed with a containing cavity with an opening facing upward. A partition plate 3112a is arranged in the containing cavity to form a first containing cavity and a second containing cavity on the upper and lower sides of the partition plate 3112a. The side wall of the first containing cavity is provided with a plurality of avoiding holes 3112c. The partition plate 3112a is provided with two slide grooves 3112b arranged alternately. The driving connecting plate 312 is provided with two groups of arc-shaped grooves 312a, and the two groups of arc-shaped grooves 312a are arranged in one-to-one correspondence with the two slide grooves 3112b. Each group of arc-shaped grooves 312a includes two arc-shaped grooves 312a arranged at intervals. Two down drilling support plate groups 313 are installed in the first containing cavity and arranged in one-to-one correspondence with the two slide grooves 3112b. Each down drilling support plate group 313 includes two down drilling support plates 314 arranged at intervals and oppositely. Each down drilling support plate 314 is provided with a slide convex 314a, which is sequentially arranged in the corresponding slide groove 3112b and arc-shaped groove 312a. The torque motor 315 is arranged in the second containing cavity. The output shaft of the torque motor 315 is arranged towards the first containing cavity and drives the driving connecting plate 312, so that the down drilling support plate 314 can be extended out of the telescopic down drilling mechanism 1 through the avoiding hole 3112c and retracted into the first containing cavity. The movable support part 31a includes two down drilling support plate groups 313. In this way, when the torque motor 315 rotates forward, the driving connecting plate 312 rotates to make the down drilling support plate 314 slide outward along the slide groove 3112b, so that the support structure 31 is unfolded, thereby realizing the positioning and support of the telescopic down drilling mechanism 1. When the torque motor 315 reverses, the driving connecting plate 312 rotates to make the support plate slide inward along the slide groove 3112b, so that the support structure 31 is retracted. Two support structures 31 work alternately to cooperate with the telescopic down drilling mechanism 1, thereby realizing the down drilling and upward movement of the grain storehouse sampling device 100.

[0077] In this embodiment, as shown in Figure 9As shown, the sampling mechanism 4 comprises a protective shell 41, a hopper 42, a sampling structure 43, a sampling drive structure 44 and a moving drive assembly 45. The protective shell 41 is formed with a containing passage extending in the up-down direction. The hopper 42 is rotatably installed in the containing passage and used to store grain samples. The sampling structure 43 is arranged in the hopper 42 and comprises a rotating shaft 431 extending in the up-down direction and a spiral blade 432 extending in the up-down direction and arranged around the rotating shaft 431. The rotating shaft 431 and the spiral blade 432 jointly define a sampling groove 433 used to contain grain. The upper end of the rotating shaft 431 is provided with a first gear 431a. The sampling drive structure 44 comprises a sliding sleeve 441 and a sampling drive motor 442. The sliding sleeve 441 is internally provided with a mounting bracket 4411 fixed to the upper end of the rotating shaft 431. The sampling drive motor 442 is mounted on the mounting bracket 4411. The sliding sleeve 441 is movably sleeved in the protective shell 41 above the sampling structure 43. The output shaft end of the sampling drive motor 442 is provided with a second gear 4421 engaged with the first gear 431a to rotate the sampling structure 43 for sampling. The moving drive assembly 45 comprises a mounting plate 451, a fourth drive motor 452 and a third screw nut structure. The mounting plate 451 is connected to the lower end of the telescopic downhole drilling mechanism 1 and located above the mounting bracket 4411. The fourth drive motor 452 is arranged on the mounting bracket 4411. The output shaft end of the fourth drive motor 452 is provided with a third gear 4521. The third screw nut structure is located between the mounting plate 451 and the mounting bracket 4411. The third screw nut structure comprises a third screw 453 and a third nut 454 which are matched with each other. The third screw 453 is arranged at the lower end of the mounting plate 451 and extends in the up-down direction. The third nut 454 is arranged at the upper end of the mounting bracket 4411. The outer side of the third nut 454 is provided with a fourth gear 4541 engaged with the third gear 4521 to move the third nut 454 in the up-down direction, so that the sampling structure 43 can be extended from the lower end of the protective shell 41.After the grain silo sampling device 100 drills to the specified depth, the sampling mechanism 4 samples the grain. First, when sampling, the fourth drive motor 452 works and drives the third gear 4521 to rotate. The third gear 4521 is engaged with the fourth gear 4541, so that the third nut 454 moves along the third screw 453 to drive the mounting frame 4411 to move. Thus, by controlling the forward and reverse rotation of the fourth drive motor 452, the mounting frame 4411 can move up and down. Since the mounting frame 4411 is arranged in the sliding sleeve 441, the sliding sleeve 441 can move up and down in the protective shell 41, so that the sampling structure 43 partially extends out of the protective shell 41. At this time, the sampling drive motor 442 rotates forward, the second gear 4421 is engaged with the first gear 431a, so that the sampling structure 43 rotates to fill the sampling groove 433 with grain. Then, the sliding sleeve 441 moves upward to partially retract the sampling structure 43 into the protective shell 41, so that the grain in the sampling groove 433 is fed into the silo 42, and the sampling is completed.

[0078] In this embodiment, as shown in Figure 10 The silo 42 includes a silo body and a plurality of partitions. The silo body is provided with a partition sleeve 422, which is sleeved outside the sampling structure 4333. The partition sleeve 422 and the silo body jointly form a grain storage cavity. A plurality of partition plates 423 are arranged in the grain storage cavity and are spaced apart along the circumferential side of the partition sleeve 422 to form a plurality of grain storage unit cells 424 in the grain storage cavity. Each grain storage unit cell 424 is provided with a feed inlet 424a communicating with the sampling groove 433. The sampling mechanism 4 further includes a permanent magnet DC torque motor 425. The shaft sleeve of the permanent magnet DC torque motor 425 is sleeved outside the sampling structure 43 and is fixed with the mounting frame 4411. The permanent magnet DC torque motor 425 is drivingly connected with the silo body to drive the silo body to rotate, so that each grain storage unit cell 424 can communicate with the sampling groove 433. Thus, during the drilling process of the grain silo sampling device 100, the sampling structure 43 works to sample at different depth positions. The permanent magnet DC torque motor 425 realizes the switching of a plurality of grain storage unit cells 424, so that a plurality of grain storage unit cells 424 store grain samples at different depth positions, and the sampling demand of grain samples at different depths at specified positions is realized, and the grain condition information at the specified position can be more comprehensively obtained.

[0079] In this embodiment, as shown in Figure 10 The lower end of the protective shell 41 is conical. Thus, the drilling resistance of the sampling mechanism 4 is reduced to facilitate the entry into the grain pile.

[0080] The above merely describes the preferred embodiments of the present application, and is not intended to limit the patent scope of the present application. Any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, made under the inventive concept of the present application, using the content of the present application specification and drawings, are included in the patent protection scope of the present application.

Claims

1. A grain storage sampling device, characterized in that, include: Telescopic drilling mechanism, used to drill downwards into the grain pile; The drilling support mechanism includes two support structures, which are installed on the telescopic drilling mechanism and spaced apart in the vertical direction, for auxiliary support of the telescopic drilling mechanism during vertical drilling. A drilling steering support mechanism is installed on the telescopic drilling mechanism. The drilling steering support mechanism has two steering support sections, which are spaced apart and staggered vertically, providing auxiliary steering support for the telescopic drilling mechanism. The side of each steering support section facing away from the telescopic drilling mechanism is inclined gradually inwards from top to bottom. A sampling mechanism is located at the lower end of the telescopic drilling mechanism and is used to sample grains in the grain warehouse. The telescopic drilling mechanism includes a housing and a telescopic structure arranged sequentially in the vertical direction. The housing forms a mounting cavity with an opening at the lower end. The side wall of the mounting cavity is provided with a first through hole, and the telescopic structure is provided with a second through hole. The two steering support parts are respectively provided in the mounting cavity and the telescopic structure, and extend out through the first through hole and the second through hole respectively, for steering support of the telescopic drilling mechanism; The two support structures are disposed between the two steering support parts; The drilling steering support mechanism includes two steering support structures spaced apart and arranged opposite to each other in a vertical direction, each of the steering support structures comprising: A rotating frame includes a support column extending vertically, a bearing plate disposed at the upper end of the support column, and a limiting plate disposed at the lower end of the support column, wherein the limiting plate is provided with two staggered limiting grooves. The pusher is located between the bearing plate and the limiting plate, and is movably installed on the support column in the vertical direction; Two steering support plate assemblies are movably mounted below the limiting plate and correspond one-to-one with the two limiting grooves. Each steering support plate assembly includes two opposing steering support plates. Each steering support plate has an abutting protrusion that passes through the corresponding limiting groove to abut against the pushing member. The steering support portion includes the steering support plates; and... A first drive motor is located above the rotating frame and is connected to the support plate to drive the rotating frame to rotate, so that the pushing member can selectively push out one of the multiple steering support plates; The sidewall of the mounting cavity is provided with a plurality of first through holes; The scalable structure includes: A telescopic sleeve extending vertically includes an inner sleeve and an outer sleeve that are interlocked, the interlocking length between the inner sleeve and the outer sleeve is adjustable, the upper end of the inner sleeve is connected to the lower end of the housing, and the outer sleeve is provided with a plurality of second through holes; and, The telescopic drilling mechanism further includes a telescopic drive structure, which includes: A support sleeve extends vertically, and one end of the support sleeve is fixed to the housing. The second lead screw and nut structure includes a second lead screw and a second nut that cooperate with each other. The second nut is located at the other end of the support sleeve and is connected to the support sleeve. The second lead screw extends vertically and partially extends into the support sleeve. A third drive motor is located inside the outer sleeve. The output shaft of the third drive motor is connected to the second lead screw to drive the outer sleeve to move vertically. The two support structures are respectively disposed in the mounting cavity and the outer sleeve. Each support structure has a movable support part, and the two movable support parts can extend to the first through hole and the second through hole respectively, for auxiliary support for the relative movement of the inner sleeve and the outer sleeve.

2. The grain silo sampling device as described in claim 1, characterized in that, Each of the steering support structures further includes multiple reset members, which are respectively disposed between two adjacent steering support plates for the movable reset of the steering support plates.

3. The grain silo sampling device as described in claim 1, characterized in that, Each of the aforementioned steering support structures further includes: The first lead screw and nut structure includes a first lead screw and a first nut that cooperate with each other, the first lead screw extending vertically, and the first nut being mounted on the pushing member; and... The second drive motor is mounted on the support plate, and the first lead screw is located at the output shaft end of the second drive motor to drive the push member to move vertically.

4. The grain silo sampling device as described in claim 1, characterized in that, The abutting protrusion is equipped with rollers.

5. The grain silo sampling device as described in claim 1, characterized in that, Each of the aforementioned support structures includes: The mounting housing includes an upper housing and a lower housing fitted inside the upper housing. The lower housing forms an upward-opening receiving cavity. A partition is provided in the receiving cavity to form a first receiving cavity and a second receiving cavity on the upper and lower sides of the partition. The sidewall of the first receiving cavity is provided with a plurality of clearance holes. The partition is provided with two staggered sliding grooves. The drive connection plate is provided with two arc-shaped groove groups, and the two arc-shaped groove groups are arranged one-to-one with the two sliding grooves. Each arc-shaped groove group includes two arc-shaped grooves arranged at intervals. Two drill bit support plate assemblies are installed within the first receiving cavity and are correspondingly arranged one-to-one with the two sliding grooves. Each drill bit support plate assembly includes two drill bit support plates spaced apart and arranged opposite each other. Each drill bit support plate has a sliding protrusion, which sequentially passes through the corresponding sliding groove and the arc-shaped groove; and... A torque motor is disposed in the second receiving cavity. The output shaft of the torque motor is disposed towards the first receiving cavity and is driven to be connected to the drive connecting plate, so that the lower drilling support plate can extend from the clearance hole to the outside of the telescopic lower drilling mechanism and retract into the first receiving cavity. The movable support includes two sets of the down-drill support plates.

6. The grain silo sampling device as described in claim 1, characterized in that, The sampling mechanism includes: The protective shell is designed to form a accommodating channel that extends vertically. The hopper is rotatably installed within the receiving channel for storing grain samples; A sampling structure is provided within the silo. The sampling structure includes a rotating shaft extending vertically and a spiral blade extending vertically and surrounding the rotating shaft. The rotating shaft and the spiral blade together form a sampling groove for accommodating grains. A first gear is provided at the upper end of the rotating shaft. A sampling drive structure includes a sliding sleeve and a sampling drive motor. The sliding sleeve contains a mounting bracket, which is fixed to the upper end of a rotating shaft. The sampling drive motor is mounted on the mounting bracket. The sliding sleeve is movably fitted inside a protective shell in a vertical direction and is located above the sampling structure. The output shaft end of the sampling drive motor has a second gear that meshes with a first gear to rotate the sampling structure for sampling. The mobile driver components include: The mounting plate is connected to the lower end of the telescopic drilling mechanism and is located above the mounting frame; A fourth drive motor is mounted on the mounting bracket, and a third gear is provided at the output shaft end of the fourth drive motor; and, The third lead screw and nut structure is located between the mounting plate and the mounting bracket. The third lead screw and nut structure includes a third lead screw and a third nut that cooperate with each other. The third lead screw is located at the lower end of the mounting plate and extends vertically. The third nut is located at the upper end of the mounting bracket. A fourth gear is provided on the outside of the third nut. The fourth gear meshes with the third gear and drives the third nut to move vertically, so that the skewing structure can extend from the lower end of the protective shell.

7. The grain silo sampling device as described in claim 6, characterized in that, The lower end of the protective shell is tapered.

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