Sampling machine

Abstract

The invention discloses a sampler, and relates to the technical field of grain detection, the sampler comprises a rack, a track mechanism, a walking mechanism, a rotating mechanism and a sampling mechanism, the track mechanism is fixedly arranged on the rack and extends along a first direction; the walking mechanism is slidably arranged on the track mechanism; the rotating mechanism is rotationally arranged on the walking mechanism; the sampling mechanism comprises a sampling framework and a sampling rod assembly, the sampling framework is fixedly arranged on the rotating mechanism, a rail groove extending in the length direction of the sampling framework is formed in the sampling framework, and the sampling rod assembly is arranged on the periphery of the sampling framework in parallel and arranged in the rail groove in a sliding mode. According to the technical scheme provided by the invention, the problem that an existing sampling rod is easy to bend during sampling due to the fact that the sampling rod is hung on the rotating seat is solved.

Description

Technical Field

[0001] The present invention relates to the technical field of grain detection, and particularly to a sampling machine. Background Art

[0002] In the modern field of grain storage and detection, the sampling machine, as an important tool, is widely used in the processes of grain warehousing, detection, and quality control. The main function of the sampling machine is to penetrate into the grain pile through the sampling rod to collect grain samples for subsequent quality analysis and detection.

[0003] In the existing sampling machines, the sampling rod is usually hoisted on the connecting rod, and the connecting rod drives the movement of the sampling rod through the rotation or lifting action at its end, so as to realize the up and down movement of the sampling rod. Since the driving force of the sampling rod is located at the end of the connecting rod during the downward insertion process, the sampling rod is in an independent cantilever shape in the grain pile. This cantilever structure is mechanically unstable. Especially when the sampling rod penetrates deep into the grain pile, due to the resistance inside the grain pile and the weight of the sampling rod itself, it is extremely easy to cause the sampling rod to bend, which not only affects the accuracy and efficiency of sampling, but also may cause damage to the sampling rod, thereby reducing the service life of the sampling rod. Summary of the Invention

[0004] The main purpose of the present invention is to propose a sampling machine, aiming to solve the problem that the existing sampling rod is prone to bending during sampling due to being hoisted on the rotating seat.

[0005] To achieve the above object, the sampling machine proposed by the present invention includes:

[0006] A frame;

[0007] A track mechanism, fixedly arranged on the frame and extending along a first direction;

[0008] A traveling mechanism, slidably arranged on the track mechanism;

[0009] A rotating mechanism, rotatably arranged on the traveling mechanism; and

[0010] A sampling mechanism, the sampling mechanism includes a sampling skeleton and a sampling rod assembly, the sampling skeleton is fixedly arranged on the rotating mechanism, a track groove extending along its length direction is arranged on the sampling skeleton, the sampling rod assembly is arranged in parallel on the outer periphery of the sampling skeleton, and is slidably arranged in the track groove.

[0011] In an embodiment, the sampling rod assembly includes:

[0012] A buffer box, slidably arranged in the track groove, and a limiting groove is arranged on the buffer box;

[0013] The sampling rod is disposed through the buffer box. A limiting ring is fixedly provided on the outer periphery of the sampling rod, and the limiting ring is slidably disposed in the limiting groove, and

[0014] A first elastic member is sleeved on the outer periphery of the sampling rod. One end of the first elastic member abuts against the top surface of the buffer box, and the other end of the first elastic member abuts against the limiting ring.

[0015] In one embodiment, the sampling mechanism further includes a first driving assembly and a transmission assembly. The first driving assembly is fixedly provided outside the sampling framework, and the transmission assembly is disposed inside the sampling framework and connects the sampling rod assembly and the first driving assembly.

[0016] In one embodiment, a mounting shaft is provided inside the sampling framework. The transmission assembly includes:

[0017] A buffer wheel is slidably disposed on the mounting shaft;

[0018] A transmission chain is wound around the outer periphery of the buffer wheel and the output shaft of the first driving assembly, and the transmission chain is fixedly connected to the buffer box; and

[0019] A second elastic member is sleeved on the outer periphery of the mounting shaft. One end of the second elastic member abuts against the buffer wheel, and the other end of the second elastic member is fixedly provided at the bottom of the mounting shaft.

[0020] In one embodiment, the transmission assembly further includes an auxiliary wheel. The auxiliary wheel is rotatably disposed inside the sampling framework and cooperates with the transmission chain so that the transmission chain is inclined away from the auxiliary wheel.

[0021] In one embodiment, the sampling mechanism further includes a connection assembly. The connection assembly includes:

[0022] A first mounting plate is disposed inside the sampling framework and is fixedly connected to the transmission chain;

[0023] A second mounting plate is disposed inside the sampling framework and is fixedly provided on a side of the first mounting plate away from the transmission chain;

[0024] A third mounting plate is disposed at a gap with the second mounting plate and is slidably disposed in the track groove. An installation hole is provided on the third mounting plate; and

[0025] A fourth mounting plate is disposed at an interval with the third mounting plate. The fourth mounting plate is fixedly provided outside the buffer box and is fixedly connected to the second mounting plate through the installation hole.

[0026] In one embodiment, a mating groove is formed between the third mounting plate and the second mounting plate, and between the third mounting plate and the fourth mounting plate. The mating groove is slidably disposed in the track groove. The connection assembly further includes a lubricating plate, and the lubricating plate is installed between the mating groove and the track groove.

[0027] In one embodiment, the track mechanism includes:

[0028] A traveling rail, fixedly provided on the frame and extending along the first direction;

[0029] A rack, fixedly provided on the traveling rail and extending along the first direction; and

[0030] A fitting track, fixedly provided on one side of the traveling rail and arranged parallel to the traveling rail. The traveling mechanism is slidably disposed on the fitting track.

[0031] In one embodiment, the traveling mechanism includes:

[0032] A traveling frame, traveling on the fitting track, and the rotating mechanism is rotatably disposed on the traveling frame;

[0033] A set of engaging wheels, installed on the traveling frame and slidably disposed on the fitting track; and

[0034] A second driving assembly, installed on the traveling frame and drivingly connected to the set of engaging wheels to drive the movement of the set of engaging wheels.

[0035] In one embodiment, the rotating mechanism includes:

[0036] A rotating seat, rotatably disposed on the traveling frame;

[0037] A bogie, one end of the bogie is fixedly provided on the rotating seat, and the other end of the bogie is fixedly provided with the sampling mechanism; and

[0038] A third driving assembly, installed on the side of the rotating seat facing the traveling mechanism and drivingly connected to the rotating seat.

[0039] The technical solution of the present invention is characterized in that the rod component and the sampling skeleton are arranged in parallel, and the rod component can slide smoothly along the track groove on the sampling skeleton, easily completing the adjustment of the height of the rod component from the sampling position, enhancing the stability of the rod component during the sampling process. The sampling skeleton is slidably arranged on the track groove, that is, during the sampling process when the rod component moves up and down, there is always a part that coincides with the sampling skeleton and is arranged close to each other, which can increase the structural strength of the rod component in the length direction, ensuring that the rod component is not easily bent during the process of inserting into the grain pile, thereby improving the reliability and accuracy of sampling. By the sliding of the traveling mechanism on the track mechanism, the sampling mechanism can drive the sampling action at any position in the first direction; in addition, a rotating mechanism is also provided in this solution, so that when the sampling mechanism walks to a certain position in the first direction, it can be driven by the rotating mechanism to perform omnidirectional and multi-angle position adjustment, so as to sample in a larger range to adapt to different sampling environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on the structures shown in these drawings.

[0041] Figure 1 It is a schematic structural diagram of an embodiment of the sampling machine provided by the present invention;

[0042] Figure 2 It is a schematic internal structure diagram of the sampling mechanism in an embodiment of the sampling machine provided by the present invention;

[0043] Figure 3 It is a schematic partial structure diagram of the sampling mechanism in another embodiment of the sampling machine provided by the present invention;

[0044] Figure 4 It is a schematic structural diagram of the sampling mechanism in yet another embodiment of the sampling machine provided by the present invention;

[0045] Figure 5 It is a schematic structural diagram of the sampling skeleton in still another embodiment of the sampling machine provided by the present invention;

[0046] Figure 6 It is a schematic cooperation structure diagram of the track mechanism and the traveling mechanism in an embodiment of the sampling machine provided by the present invention;

[0047] Figure 7 It is a schematic structural diagram of the traveling mechanism in an embodiment of the sampling machine provided by the present invention;

[0048] Figure 8 Schematic diagram of the cooperation structure of the rotating mechanism, sampling mechanism and traveling mechanism in an embodiment of the sampling machine provided by the present invention.

[0049] Explanation of the reference numerals in the drawings:

[0050] 100. Sampling machine; 1. Frame; 2. Track mechanism; 21. Traveling rail; 22. Rack; 23. Fitting track; 3. Traveling mechanism; 31. Traveling frame; 32. Fitting wheel set; 33. Second driving component; 4. Rotating mechanism; 41. Rotating seat; 42. Bogie; 43. Third driving component; 5. Sampling mechanism; 51. Sampling skeleton; 511. Track groove; 512. Mounting shaft; 52. Sampling rod assembly; 521. Buffer box; 5211. Limit groove; 522. Sampling rod; 5221. Limit ring; 523. First elastic member; 53. First driving component; 54. Transmission component; 541. Buffer wheel; 542. Transmission chain; 543. Second elastic member; 544. Auxiliary wheel; 55. Connection component; 550. Fitting groove; 551. First mounting plate; 552. Second mounting plate; 553. Third mounting plate; 554. Fourth mounting plate.

[0051] The realization, functional features and advantages of the object of the present invention will be further described with reference to the embodiments and the accompanying drawings. Detailed implementation manners

[0052] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0053] It should be noted that if there are directional indications (such as up, down, left, right, front, back,...) involved in the embodiments of the present invention, the directional indications are only used to explain the relative positional relationship and movement conditions between components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0054] In addition, if the embodiments of the present invention involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for descriptive purposes and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, if "and / or" or "and / or" appears throughout the text, its meaning includes three parallel scenarios. Taking "A and / or B" as an example, it includes scenario A, or scenario B, or the scenario where both A and B are satisfied simultaneously. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0055] In the existing sampling machine, the sampling rod is usually hoisted on the connecting rod, and the connecting rod drives the movement of the sampling rod through the rotation or lifting movement at its end, so as to realize the up and down movement of the sampling rod. Since the sampling rod is driven at the end of the connecting rod during the downward insertion process, the sampling rod is in an independent cantilever shape in the grain pile. This cantilever structure is mechanically unstable. Especially when the sampling rod penetrates deep into the grain pile, due to the resistance inside the grain pile and the weight of the sampling rod itself, it is very easy to cause the sampling rod to bend, which not only affects the accuracy and efficiency of sampling, but also may cause damage to the sampling rod, thus reducing the service life of the sampling rod.

[0056] The present invention provides a sampling machine.

[0057] Please refer to Figure 1 、 Figure 2 、 Figure 5 and Figure 8 , in an embodiment of the present invention, the sampling machine 100 includes:

[0058] A frame 1;

[0059] A track mechanism 2, fixedly arranged on the frame 1 and extending along the first direction;

[0060] A traveling mechanism 3, slidably arranged on the track mechanism 2;

[0061] A rotating mechanism 4, rotatably arranged on the traveling mechanism 3; and

[0062] A sampling mechanism 5, the sampling mechanism 5 includes a sampling skeleton 51 and a sampling rod assembly 52. The sampling skeleton 51 is fixedly arranged on the rotating mechanism 4. A track groove 511 extending along its length direction is provided on the sampling skeleton 51. The sampling rod assembly 52 is arranged parallel to the outer periphery of the sampling skeleton 51 and is slidably arranged in the track groove 511.

[0063] The technical solution of the present invention is achieved by arranging the rod component 52 and the sampling framework 51 in parallel. The rod component 52 can slide smoothly along the track groove 511 on the sampling framework 51, easily completing the adjustment of the height of the rod component 52 from the sampling position, enhancing the stability of the rod component 52 during the sampling process. The sampling framework 51 is slidably arranged on the track groove 511, that is, during the sampling process of the up-and-down movement of the rod component 52, there is always a part that coincides with and is close to the sampling framework 51, which can increase the structural strength of the rod component 52 in the length direction, ensuring that the rod component 52 is not easily bent during the process of inserting into the grain pile, thereby improving the reliability and accuracy of sampling. By the sliding of the traveling mechanism 3 on the track mechanism 2, the sampling mechanism 5 can be driven to perform the sampling action at any position in the first direction; in addition, a rotating mechanism 4 is provided in this solution, so that when the sampling mechanism 5 travels to a certain position in the first direction, it can be driven by the rotating mechanism 4 to perform all-round and multi-angle position adjustment, so as to sample in a larger range to adapt to different sampling environments.

[0064] Specifically, there is no specific limitation on the set length of the sampling framework 51. For example, it can adopt almost the same length as the rod component 52 to ensure that the sampling framework 51 can provide long-length support for the rod component 52 during the sampling process. In addition, the set length of the track groove 511 can be designed according to the length of the sampling distance. A lubricating strip can also be provided at the notch of the track groove 511 to enable the rod component 52 to slide smoothly. The setting of the track groove 511 fundamentally ensures that the downward insertion route of the rod component 52 is a straight line, and the force transmission is simple and direct. Optionally, a reinforcing seat extending outward can also be provided on the outer wall of the bottom of the sampling framework 51, and the rod component 52 is slidably arranged on the reinforcing seat, thereby increasing the fixing strength of the rod component 52 to ensure that it will not be deformed or damaged even when subjected to a large external force. It should be noted that the traveling mechanism 3 can adopt a parallel four-bar mechanism or a rod-shaped crawling mechanism, etc., as long as it can drive the sampling mechanism 5 to move on a specific path; the rotating mechanism 4 can adopt a belt pulley mechanism, etc., as long as it is a commonly used structure in the art that can be used for rotation. The track mechanism 2 can adopt a guide rail and other structures arranged along the length direction of the frame 1, and can be a single-rail single-wheel traveling structure, a single-rail multi-wheel traveling structure or a double-rail double-wheel traveling structure, etc.

[0065] In an embodiment of the present invention, please refer to Figure 2 and Figure 3 , the rod component 52 includes:

[0066] A buffer box 521, slidably arranged in the track groove 511, and a limiting groove 5211 is provided on the buffer box 521;

[0067] The sampling rod 522 is disposed through the buffer box 521. A limiting ring 5221 is fixedly arranged on the outer periphery of the sampling rod 522. The limiting ring 5221 is slidably arranged in the limiting groove 5211, and

[0068] a first elastic member 523 is sleeved on the outer periphery of the sampling rod 522. One end of the first elastic member 523 abuts against the top surface of the buffer box 521, and the other end of the first elastic member 523 abuts against the limiting ring 5221.

[0069] Specifically, through the cooperation of the limiting ring 5221 on the sampling rod 522 and the first elastic member 523, a buffering effect can be provided for the sampling rod 522, reducing the impact force received by the sampling rod 522 during the sampling process and extending the service life of the sampling rod 522. In the specific implementation process, when the sampling rod 522 is stationary, the first elastic member 523 is in a natural state, and the limiting ring 5221 is located at the starting position of the limiting groove 5211; when the sampler 100 starts to work, the sampling rod 522 and the buffer box 521 start to move downward along the track groove 511 under the drive of an external power source (such as a motor) until the moment when the sampling rod 522 touches the bottom. At this time, the buffer box 521 receives a large impact, and the sampling rod 522 remains stationary. The buffer box 521 continues to move downward under the drive of the external power source. The limiting ring 5221 outside the sampling rod 522 slides in the limiting groove 5211 and compresses the first elastic member 523. The compression of the first elastic member 523 provides a necessary buffering force for the continuous downward insertion of the sampling rod 522; when the sampling rod 522 reaches the predetermined sampling depth, both the sampling rod 522 and the buffer box 521 stop moving; after the sampling is completed, the sampling rod 522 needs to retract to the initial position. During the retraction process, the buffer box 521 first moves upward a small distance under the drive of an external force, so that the first elastic member 523 gradually returns to the natural state, and the limiting ring 5221 also slides back to the starting position in the limiting groove 5211. Subsequently, the sampling rod 522 synchronously moves upward with the buffer box 521. The first elastic member 523 can be a compression spring or other elastic sleeves with elasticity.

[0070] In an embodiment of the present invention, please refer to Figures 2 to 4, the sampling mechanism 5 further includes a first driving component 53 and a transmission component 54. The first driving component 53 is fixedly arranged outside the sampling framework 51, and the transmission component 54 is arranged inside the sampling framework 51 and connects the sampling rod component 52 and the first driving component 53. The first driving component 53 can be a motor. The transmission component 54 includes a series of gears arranged inside the sampling framework 51. The output shaft of the motor is connected to the gear system, and the power of the motor is transmitted to the sampling rod component 52 through gear meshing, thereby driving the sampling rod component 52 to rise or fall. When the first driving component 53 (motor) is started, the motor starts to rotate, drives the first gear connected to the gear system through the output shaft, and the rotation of the first gear is transmitted to other gears in the gear system through meshing. These gears are meshed in sequence to transmit the power to the final gear connected to the sampling rod component 52, and the rotation of the final gear drives the sampling rod component 52 to move along the track groove 511 to realize the sampling operation. When it is necessary to retract the sampling rod component 52, the operator can reverse the rotation direction of the first driving component 53 (motor), and the sampling rod component 52 is driven in reverse through the transmission component 54 to return to the initial position.

[0071] In an embodiment of the present invention, please refer to Figure 2 and Figure 4 , an installation shaft 512 is arranged inside the sampling framework 51, and the transmission component 54 includes:

[0072] A buffer wheel 541 is slidably arranged on the installation shaft 512;

[0073] A transmission chain 542 is wound around the outer periphery of the buffer wheel 541 and the output shaft of the first driving component 53, and the transmission chain 542 is fixedly connected to the buffer box 521; and

[0074] A second elastic member 543 is sleeved on the outer periphery of the installation shaft 512. One end of the second elastic member 543 abuts against the buffer wheel 541, and the other end of the second elastic member 543 is fixedly arranged at the bottom of the installation shaft 512.

[0075] Specifically, the second elastic member 543 can be a tension spring or other elastic sleeves with elastic tension. The second elastic member 543 penetrates through the installation shaft 512 and is fixed to the bottom of the installation shaft 512 through a nut. The nut presses the second elastic member 543 so that the buffer wheel 541 always has a tendency to be away from the bottom of the sampling framework 51, thereby automatically tensioning the transmission chain 542 and reducing the slack of the chain. Moreover, the second elastic member 543 provides buffering between the buffer wheel 541 and the installation shaft 512, can absorb the impact and vibration during the transmission process, reduce the wear of the chain and the wheel, and extend the maintenance cycle. In this embodiment, by the sliding arrangement of the buffer wheel 541 on the installation shaft 512, the tension force between the chains on the transmission chain 542 can be changed to make it have a proper transmission efficiency.

[0076] In an embodiment of the present invention, please refer to Figure 2 , the transmission assembly 54 further includes an auxiliary wheel 544. The auxiliary wheel 544 is rotatably disposed inside the sampling framework 51 and cooperates with the transmission chain 542 such that the transmission chain 542 is inclined away from the auxiliary wheel 544. The transmission chain 542 is wound between the sprocket and the auxiliary wheel 544. The design of the auxiliary wheel 544 causes the transmission chain 542 to be inclined away from the auxiliary wheel 544. This setting increases the contact area between the chain and the sprocket and improves the transmission efficiency. Multiple auxiliary wheels 544 can be provided as needed. The multiple auxiliary wheels 544 can be provided at different positions on the same side of the transmission chain 542 or at different positions on different sides of the transmission chain 542. A support shaft can be provided at a position inside the sampling framework 51 close to the transmission chain 542, and the auxiliary wheel 544 is rotatably disposed on the outer periphery of the support shaft. It can be understood that the auxiliary wheel 544, the buffer wheel 541, and the output shaft of the first drive assembly 53 need to rotate simultaneously to ensure the efficient transmission of the transmission chain 542.

[0077] In an embodiment of the present invention, please refer to Figure 3 and Figure 4 , the sampling mechanism 5 further includes a connection assembly 55. The connection assembly 55 includes:

[0078] A first mounting plate 551, disposed inside the sampling framework 51 and fixedly connected to the transmission chain 542;

[0079] A second mounting plate 552, disposed inside the sampling framework 51 and fixed to a side of the first mounting plate 551 away from the transmission chain 542;

[0080] A third mounting plate 553, disposed at a gap with the second mounting plate 552 and slidably disposed in the track groove 511. An installation hole is provided on the third mounting plate 553; and

[0081] A fourth mounting plate 554, disposed at an interval from the third mounting plate 553. The fourth mounting plate 554 is fixed to the outside of the buffer box 521 and fixedly connected to the second mounting plate 552 through the installation hole.

[0082] Specifically, through the setting of the connecting component 55, each component of the sampling mechanism 5 can be more stably connected, improving the stability of the entire mechanism against external force impacts during the sampling process. The gap setting of the third mounting plate 553 and its sliding setting in the track groove 511 provide a flexible adjustment space for the third mounting plate 553. The first mounting plate 551 is fixedly connected to the transmission chain 542. As the starting point of power transmission, it ensures that the sampling rod 522 and the transmission chain 542 maintain a relative position, avoiding the problem of slipping during the downward sampling process. The second mounting plate 552 is fixedly arranged on the side of the first mounting plate 551 away from the transmission chain 542, providing additional support. The third mounting plate 553 has a gap setting with the second mounting plate 552 and is allowed to slide within the track groove 511, increasing flexibility. The fourth mounting plate 554 is fixedly arranged outside the buffer box 521 and is fixedly connected to the second mounting plate 552 through the mounting holes, ensuring the precise movement of the sampling rod 522 and the buffer box 521 following the transmission chain 542. For the connection between the first mounting plate 551 and the transmission chain 542, the connection between the fourth mounting plate 554 and the buffer box 521, and the connection methods between any adjacent mounting plates, connection methods such as threaded connection, welding, and casting can be adopted.

[0083] In an embodiment of the present invention, please refer to Figure 3 , a mating groove 550 is formed between the third mounting plate 553 and the second mounting plate 552, and also between the third mounting plate 553 and the fourth mounting plate 554. The mating groove 550 is slidably arranged in the track groove 511; the connecting component 55 further includes a lubricating plate (not shown in the figure), and the lubricating plate is installed between the mating groove 550 and the track groove 511. The width of the third mounting plate 553 is smaller than that of the second and fourth mounting plates 554, such that after being connected as a whole, a recessed mating groove 550 is formed on both sides of the third mounting plate 553. The setting of the mating groove 550 allows the lubricating plate to be installed therein, effectively reducing the friction and wear between the third mounting plate 553 and the second mounting plate 552, and between the third mounting plate 553 and the fourth mounting plate 554. The lubricating plate can be made of wear-resistant materials such as plastic or metal, and its surface can also be coated with a special coating to reduce friction, reducing the jamming phenomenon caused by friction and ensuring that the mounting plates in the sampling mechanism 5 can smoothly move within the track groove 511.

[0084] In an embodiment of the present invention, please refer to Figures 6 and Figure 7 , the track mechanism 2 includes:

[0085] A traveling rail 21, fixedly arranged on the frame 1 and extending along the first direction;

[0086] A rack 22, fixedly arranged on the traveling rail 21 and extending along the first direction; and

[0087] The fitting track 23 is fixedly arranged on one side of the walking track 21 and is arranged in parallel with the walking track 21. The walking mechanism 3 is slidably arranged on the fitting track 23.

[0088] Specifically, the track mechanism 2 includes a walking track 21, a rack 22, and a fitting track 23. The rack 22 and the fitting track 23 are both arranged on the walking track 21 and extend along the first direction. By arranging the fitting track 23 in parallel with the walking track 21, the stability of the walking mechanism 3 when moving along the first direction is enhanced. In this solution, the teeth on the rack 22 are engaged with the gears on the walking mechanism 3 to achieve precise movement control. Moreover, a part of the fitting track 23 is embedded in the walking mechanism 3 to ensure that it can slide freely and be correctly engaged with the rack 22. The arrangement of the walking track 21 provides additional support, making the entire track mechanism 2 more robust and capable of withstanding greater loads.

[0089] In an embodiment of the present invention, please refer to Figure 7 , the walking mechanism 3 includes:

[0090] A walking frame 31 that walks on the fitting track 23, and a rotating mechanism 4 is rotatably arranged on the walking frame 31;

[0091] A set of engaging wheels 32 is installed on the walking frame 31 and is slidably arranged on the fitting track 23; and

[0092] A second driving assembly 33 is installed on the walking frame 31 and is drivingly connected to the set of engaging wheels 32 to drive the movement of the set of engaging wheels 32.

[0093] Specifically, the traveling mechanism 3 includes a traveling frame 31, a nested wheel set 32, and a second driving component 33. The second driving component 33 can be a servo motor or other mechanical devices with a driving function. A gear can be provided on the output shaft of the second driving component 33. By meshing the gear with the rack 22, the traveling frame 31 can be driven to move along the first direction on the traveling rail 21. A set of nested wheel sets 32 can be provided on each side of the traveling frame 31. Each set of nested wheel sets 32 includes three rollers. The three rollers are respectively installed on the traveling frame 31 through roller shafts, and the three rollers are respectively arranged on the upper side, lower side, and outer side of the fitting track 23 for nesting in the three directions of up, down, and outer side. Additionally, an adjusting component can be provided on the traveling frame 31. The adjusting component includes an adjusting seat and an adjusting column passing through the adjusting seat. The distance between the lower roller and the upper roller located on the upper side can be adjusted through the adjusting seat and the adjusting column, so that the upper and lower rollers can stably clamp the fitting track 23, enabling the traveling frame 31 to move smoothly along the first extension direction. Optionally, an adjusting rod can be further provided on the outer side of the traveling frame 31. The roller shaft for installing the outer roller passes through the adjusting rod and is fixed by a nut. The distance between the outer roller and the fitting track 23 can be adjusted by adjusting the nut. That is to say, by adjusting the lower roller located on the lower side of the fitting track 23 in the nested wheel set 32, the gap between the roller and the track can be eliminated, and by adjusting the outer roller located on the outer side of the fitting track 23 in the nested wheel set 32, the left and right positions of the traveling frame 31 and the traveling rail 21 can be adjusted. Further, a pressing component can be provided at a position on the traveling frame 31 close to the second driving component 33. The pressing component includes a sliding shaft, an elastic member, and a support frame. The support frame is fixedly provided on the traveling frame 31 for clamping and fixing the sliding shaft. The sliding shaft passes through the second driving component 33, enabling the second driving component 33 to rotate along the sliding shaft. The elastic member is slidably sleeved on the outer periphery of the sliding shaft, and the elastic member is pressed by a nut, so that the second driving component 33 can always maintain good meshing with the rack 22. In other embodiments, a limiting component can also be provided on the traveling frame 31. The limiting component includes a limiting shaft and a limiting wheel. The limiting shaft is fixedly provided on the base of the second driving component 33, and the limiting wheel is fixedly provided on the limiting shaft and is arranged on the back of the rack 22 close to the traveling rail 21. When a failure or other unexpected situation occurs, due to the blocking of the limiting wheel, the gear on the output shaft of the second driving component 33 cannot be disengaged from the rack 22, which can avoid phenomena such as tooth skipping and protect the gear and the rack 22.

[0094] In an embodiment of the present invention, please refer to Figure 8 , the rotating mechanism 4 includes:

[0095] A rotating seat 41, rotatably arranged on the traveling frame 31;

[0096] A bogie 42, one end of the bogie 42 is fixedly arranged on the rotating seat 41, and a sampling mechanism 5 is fixedly arranged at the other end of the bogie 42; and

[0097] The third driving component 43 is installed on one side of the rotating seat 41 facing the traveling mechanism 3 and is drivingly connected to the rotating seat 41.

[0098] Specifically, the third driving component 43 can be a servo motor or other mechanical devices with a driving function. The rotating seat 41 can be a rotating wheel that meshes with a gear outside the output shaft of the third driving component 43. Through the drive of the third driving component 43, the rotating seat 41 can be driven to rotate within a certain angle range, and the bogie 42 will rotate synchronously with the rotating seat 41, thereby driving the synchronous rotation of the sampling mechanism 5 to perform sampling within a wider range. One end of the bogie 42 can be fixedly installed on the rotating seat 41 by welding or riveting, etc. The other end of the bogie 42 is installed with the sampling mechanism 5, and the sampling mechanism 5 can be installed and fixed by welding, riveting or threaded connection, etc. Optionally, a counterweight frame is further provided on the side of the bogie 42 away from the sampling mechanism 5. By adjusting the counterweight of the counterweight frame to match the weight of the sampling mechanism 5, the center of gravity can be significantly changed, the stress condition can be improved, and it can rotate smoothly in the horizontal direction. Further, a stabilizer bar can also be provided on the bogie 42. The stabilizer bar and the counterweight frame are respectively arranged on both sides of the main body of the bogie 42. By pre-applying a pre-tightening force through the stabilizer bar, the stiffness of the equipment is increased. At the same time, the stabilizer bar changes the structure of the rotating frame, increases the stress points, effectively improves the stress structure, and improves the stability. It should be noted that the two ends of the stabilizer bar connected to the bogie 42 can respectively use positive and reverse threads to optimize the installation process, and ball bearings are used at both ends to eliminate the influence caused by machining errors.

[0099] Of course, the sampler 100 can also combine the above-mentioned multiple embodiments according to specific implementation requirements. The specific implementation process is as follows: When the sampler 100 receives a sampling start instruction, the second drive assembly 33 drives the traveling mechanism 3 to move along the extension direction of the traveling rail 21. At the same time, the third drive assembly 43 drives the bogie 42 to rotate around the second direction, so that the sampling mechanism 5 leaves the origin position. Under the combined drive of the second drive assembly 33 and the third drive assembly 43, the sampling mechanism 5 reaches above the sampling point. At this time, the second drive assembly 33 and the third drive assembly 43 stop running, and the first drive assembly 53 drives the rotation of the transmission chain 542 to drive the sampling rod 522 to lower. At this time, as the lowering depth of the sampling rod 522 increases, the reaction force received by the entire device also increases. When the sampling rod 522 touches the bottom of the grain truck, the first drive assembly 53 receives a stop signal, and the sampling rod 522 stops lowering. Then, the first drive assembly 53 moves in the reverse direction to drive the sampling rod 522 to rise. In particular, at the moment when the sampling rod 522 touches the bottom, the sampling rod assembly 52 receives a large impact. At this time, the sampling rod 522 remains stationary, and the buffer box 521 continues to move downward under the drive of the transmission chain 542. The limit ring 5221 of the sampling rod 522 presses the first elastic member 523 to obtain a certain buffer. At the same time, the transmission chain 542 is inevitably stretched during the repeated movement process, and the second elastic member 543 provided at the buffer wheel 541 can automatically tension the transmission chain 542 to ensure the stable operation of the device. When the sampling rod 522 rises in place, the first drive assembly 53 receives a stop signal. At this time, the second drive assembly 33 and the third drive assembly 43 work simultaneously to move the sampling mechanism 5 to the next sampling point or return to the starting position. During the above working process, the second drive assembly 33 and the third drive assembly 43 are required to perform addressing to reach the sampling point position, while only the first drive assembly 53 is required to complete the lowering process, thus eliminating the need for interlock control. The three drive assemblies drive the movement of the sampling rod 522 separately, and the positioning of the target sampling position is more accurate. The sampling rod 522 and the sampling skeleton 51 move vertically up and down independently, greatly reducing the risk of bending. At the same time, because the traveling rail 21 is added, the range of the sampling point is greatly improved, and the sampling range can be better balanced. Through the cooperation of the movement of the traveling mechanism 3 along the track mechanism 2 in the first direction and the rotation of the rotating mechanism 4, the entire carriage range on both sides of the track mechanism 2 can be covered. During the sampling process, there is no need to readjust the parking position, and the origin resampling can be realized in cooperation with the control system.

[0100] The above description is only an exemplary embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made under the technical concept of the present invention by using the content of the specification and drawings of the present invention, or directly / indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. A sampling machine, characterized in that: The sampling machine comprises: frame; A track mechanism, fixed to the frame and extending along a first direction; A walking mechanism, slidably arranged on the track mechanism; A rotating mechanism, rotatably arranged on the walking mechanism; and The sampling mechanism comprises a sampling frame and a sampling rod assembly. The sampling frame is fixedly arranged on the rotating mechanism. The sampling frame is provided with a track groove extending along its length direction. The sampling rod assembly is arranged parallel to the outer periphery of the sampling frame and is slidably arranged in the track groove.

2. The sampling machine according to claim 1, characterized in that: The rod assembly comprises: A buffer box is slidably arranged on the track groove, and a limiting groove is arranged on the buffer box; A sampling rod is arranged through the buffer box, a limiting ring is fixedly arranged on the outer periphery of the sampling rod, and the limiting ring is slidably arranged in the limiting groove, and The first elastic member is sleeved on the outer circumference of the sampling rod, one end of the first elastic member abuts against the top surface of the buffer box, and the other end of the first elastic member abuts against the limiting ring.

3. The sampling machine according to claim 2, characterized in that: The sampling mechanism further includes a first driving assembly and a transmission assembly. The first driving assembly is fixedly arranged on the outside of the sampling frame, and the transmission assembly is arranged on the inside of the sampling frame and connects the sampling rod assembly and the first driving assembly.

4. The sampling machine according to claim 3, characterized in that: The interior of the sampling frame is provided with a mounting shaft, and the transmission assembly comprises: A buffer wheel, slidably disposed on the mounting shaft; a transmission chain, wound around the buffer wheel and the outer circumference of the output shaft of the first driving assembly, the transmission chain being fixedly connected to the buffer box; and The second elastic member is sleeved on the outer circumference of the installation shaft, one end of the second elastic member is in contact with the buffer wheel, and the other end of the second elastic member is fixedly arranged on the bottom of the installation shaft.

5. The sampling machine according to claim 4, characterized in that: The transmission assembly also includes an auxiliary wheel, which is rotatably arranged inside the sampling frame and cooperates with the transmission chain so that the transmission chain is tilted in a direction away from the auxiliary wheel.

6. The sampling machine according to claim 4, characterized in that: The sampling mechanism further includes a connecting component, which includes: A first mounting plate is disposed inside the sampling frame and is fixedly connected to the transmission chain; A second mounting plate is disposed inside the sampling frame and fixedly mounted on a side of the first mounting plate away from the transmission chain; A third mounting plate, which is spaced apart from the second mounting plate and slidably disposed with the track groove, and the third mounting plate is provided with mounting holes; and The fourth mounting plate is spaced apart from the third mounting plate, the fourth mounting plate is fixedly arranged outside the buffer box, and is fixedly connected to the second mounting plate through the mounting hole.

7. The sampling machine according to claim 6, characterized in that: Matching grooves are formed between the third mounting plate and the second mounting plate, and between the third mounting plate and the fourth mounting plate, and the matching grooves are slidably arranged in the track grooves; the connecting assembly also includes a lubrication plate, and the lubrication plate is installed between the matching groove and the track groove.

8. The sampling machine according to any one of claims 1 to 7, characterized in that: The track mechanism comprises: A walking rail, fixed to the frame and extending along the first direction; a rack fixed on the running rail and extending along the first direction; and The embedded track is fixedly arranged on one side of the running track and arranged in parallel with the running track. The running mechanism is slidably arranged on the embedded track.

9. The sampling machine according to claim 8, characterized in that: The walking mechanism comprises: A traveling frame, which travels on the embedded track, and the rotating mechanism is rotatably arranged on the traveling frame; A sleeve wheel set is installed on the walking frame and slidably arranged on the fitting track; and The second driving assembly is installed on the walking frame and is drivingly connected to the sleeve wheel set to drive the movement of the sleeve wheel set.

10. The sampling machine according to claim 9, characterized in that: The rotating mechanism comprises: A rotating seat, rotatably arranged on the walking frame; a bogie, one end of which is fixedly arranged on the rotating seat, and the other end of which is fixedly arranged on the sampling mechanism; and The third driving assembly is installed on a side of the rotating seat facing the walking mechanism and is drivingly connected to the rotating seat.

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