CN219935388U - Sampler - Google Patents

Abstract

The utility model relates to a sampler, which comprises a fixed base assembly, a rotary lifting platform assembly, a pitching arm assembly and a sampling tube assembly, wherein the fixed base assembly is connected with the rotary lifting platform assembly; the rotary lifting platform comprises a sliding driving unit, and the sliding driving unit is used for driving the rotary lifting platform to slide relatively along the extending direction of the first track; the slewing lifting platform assembly further comprises a slewing driving unit for driving the pitching arm to rotate and a pitching driving unit for driving the pitching arm to pitch; the sampling tube assembly comprises a mobile driving unit for driving the sampling tube assembly to slide relatively along the extending direction of the second track, and also comprises a sampling tube, a sampling tube mobile module for driving the sampling tube to move and a sampling tube swinging module for driving the sampling tube to rotate. Compared with the prior art, the utility model can realize the movement of the sampling tube with 6 degrees of freedom, is convenient to use, can adapt to the sampling conditions of various grains, can collect the sampling tube, and is convenient to move and transport.

Description

Sampler

Technical Field

The utility model relates to the technical field of grain sampling, in particular to a sampler.

Background

The grain sampler is a sampling device for sampling grain quality of grain pile, and its key technology is that the sampling tube can be moved to different positions above the grain pile by means of driving mechanism, and the up-and-down movement of the sampling tube can be implemented so as to implement sampling work of grain pile by means of sampling tube. Currently, the base of grain samplers is generally fixed relative to the ground, and the transmission mechanism and its terminal sampling tube are arranged in a gantry type (patent CN 201910641659.8) or cantilever type (e.g. patent CN201710468679.0 and CN 201920260040.8) manner. In order to solve the problem that the fixed sampler can only be detected when the grain to be detected is close to the sampler, some movable samplers are developed, so that the sampling service is more convenient. However, the conventional movable sampling machine (such as CN 202022293954.X and CN 202222049493.0) is usually only fixed to the frame, which has the problem of too large height, and because the sampling pipe portion is not designed with special driving click, the up-down sampling process needs to move up and down together with the rest large-sized components, the energy consumption of the sampling process is large, the impact on the sampling pipe is large, and the service life is shortened.

In the process of implementing the present utility model, the inventor finds that the following problems exist in the prior art:

the movable sampler in the prior art rotates the sampling tube to the upper part of the grain pile through the hanging frame, inserts the sampling tube into the grain pile, has only two degrees of freedom of rotation and insertion, is inconvenient to use and does not meet the current automatic requirement.

Disclosure of Invention

Therefore, it is necessary to provide a sampler for solving the technical problems that in the prior art, the sampler rotates the sampling tube to the upper part of the grain pile through the hanging frame, the sampler is inserted into the grain pile, and only two degrees of freedom of rotation and insertion are provided, so that the sampler is inconvenient to use and does not meet the current automatic requirement.

To achieve the above object, in a first aspect, the present inventors provide a sampler comprising:

the fixed base assembly comprises a base and a first rail arranged on the base, and the first rail extends along the length direction of the base;

the rotary lifting platform assembly is arranged on the fixed base assembly in a sliding manner through the first rail, and comprises a sliding driving unit which is used for driving the rotary lifting platform to slide relatively along the extending direction of the first rail;

the pitching arm assembly is arranged on the rotary lifting platform assembly, the pitching arm assembly comprises a pitching arm, and the rotary lifting platform assembly further comprises a rotary driving unit for driving the pitching arm to rotate and a pitching driving unit for driving the pitching arm to pitch; and

a sampling tube assembly; the pitching arm is provided with a second track, the sampling tube assembly is arranged on the pitching arm in a sliding manner through the second track, the second track extends along the length direction of the pitching arm, the sampling tube assembly comprises a mobile driving unit for driving the sampling tube assembly to relatively slide along the extending direction of the second track, and the sampling tube assembly further comprises a sampling tube, a sampling tube moving module for driving the sampling tube to move and a sampling tube swinging module for driving the sampling tube to rotate;

the sampling tube can be contracted to be parallel to the pitching arm through the cooperation of the movable driving unit, the sampling tube moving module and the sampling tube swinging module.

Compared with the prior art, the technical scheme is characterized in that the sliding driving unit is used for driving the rotary lifting platform to relatively slide along the extending direction of the first track, the rotary driving unit drives the pitching arm to rotate, the pitching driving unit drives the pitching arm to pitch, the moving driving unit drives the sampling tube assembly to relatively slide along the extending direction of the second track, the sampling tube moving module drives the sampling tube to move, and the sampling tube swinging module drives the sampling tube to rotate; in the use process, the rotary lifting platform is driven to horizontally move on the fixed base to a designated position, the rotary lifting platform rotates the pitching arm firstly, the pitching arm is driven to incline from a horizontal state through the rotary lifting platform, the inserting angle of the sampling pipe is changed through the sampling pipe swinging module, the sampling pipe moving module can drive the sampling pipe translation mechanism driving module to move on the pitching arm, the sampling pipe is inserted into grains, and the sampling pipe translation mechanism driving module can also drive the sampling pipe to move again, so that the grains of each layer of grain pile are sampled; so, through slip drive unit, gyration drive unit, every single move drive unit, removal drive unit, sampling pipe movable module and sampling pipe swing module, can realize the removal of 6 degrees of freedom of sampling pipe, convenient to use can adapt to the condition of the sample of various grains, accords with the demand to automation now. The sampling tube can be contracted to be parallel to the pitching arm through the cooperation of the movable driving unit, the sampling tube moving module and the sampling tube swinging module. The sampling tube can be collected, so that the movement and the transportation are convenient.

As one embodiment of the utility model, the sampling tube moving module comprises a driving gear, an opening guide sleeve, a movable base, a traction rack and a driving motor, wherein the driving motor, the opening guide sleeve, the traction rack and the sampling tube are arranged on the movable base, the traction rack extends along the length direction of the sampling tube, the driving gear is meshed with the traction rack, the driving motor is used for driving the driving gear to rotate, so that the movable base is driven to relatively slide along the extending direction of the traction rack, and the opening guide sleeve is used for guiding the sampling tube.

Therefore, when the grain pile sucking device is used, the driving motor drives the driving gear to rotate, and the driving gear drives the traction rack and the sampling pipe to move together, so that the sampling pipe is inserted into the grain pile sucking opening guide sleeve to play a role in guiding and antifriction.

As one implementation mode of the utility model, the sampling tube moving module comprises four opening guide sleeves, the four opening guide sleeves are sequentially arranged on the movable base, the sampling tube sequentially passes through the four opening guide sleeves, two opening guide sleeves are arranged on the left side of the driving motor, two opening guide sleeves are arranged on the right side of the driving motor, and a bushing is arranged in the opening guide sleeve.

Therefore, the moving stability of the sampling tube is improved by arranging two opening guide sleeves on the left side and the right side of the driving motor respectively.

As one implementation mode of the utility model, the movable base is provided with a swing arm assembly, the sampling tube swinging module comprises a swing arm shaft, a movable sliding table and an electric push rod assembly, the swing arm assembly is fixedly connected with the movable base, the swing arm assembly comprises a rotating hole matched with the swing arm shaft, the swing arm shaft is rotatably arranged in the rotating hole, the swing arm shaft is fixedly connected with the movable sliding table, the swing arm assembly further comprises a connecting part connected with the electric push rod assembly, and the electric push rod assembly is used for driving the swing arm assembly and the movable base to rotate around the swing arm shaft so as to drive the sampling tube to rotate.

Thus, the electric push rod assembly is electrified to drive the swing arm assembly to rotate around the swing arm shaft, so that the sampling tube is driven to be converted from a horizontal working condition with the pitching arm to a vertical working condition with the ground, and vice versa.

As one implementation mode of the utility model, two second rails which are arranged in parallel are arranged on the pitching arm, the movable sliding table is arranged on the pitching arm in a sliding way through the two second rails, and the movable driving unit is used for driving the movable sliding table to move relatively on the pitching arm along the extending direction of the second rails in a belt transmission way.

Therefore, the movable driving unit drives the movable sliding table to move on the pitching arm along the second track in a belt transmission mode, and the pitching arm is formed by welding profile steel, so that sufficient strength and rigidity are ensured.

As one embodiment of the utility model, the rotary lifting platform assembly further comprises a lifting platform, more than two guide posts and a lifting driving unit, wherein the more than two guide posts are arranged in an extending mode along the vertical direction, the lifting platform is arranged on the more than two guide posts in a sliding mode, and the lifting driving unit is used for driving the lifting platform to slide relatively along the extending direction of the guide posts.

Thus, the lifting driving unit can lift the lifting platform upwards along the guide post by 350 mm.

As one embodiment of the utility model, the pitching arm is arranged on the rotary lifting platform assembly through an articulated fulcrum, and the pitching driving unit is used for driving the pitching arm to rotate around the articulated fulcrum.

In this way, the pitch arm can be rotated about the hinge pivot by the pitch drive unit, producing a 55 ° pitch angle.

As one implementation mode of the utility model, two first rails which are arranged in parallel are arranged on the fixed base assembly, a movable rack is arranged between the two first rails, the movable rack is arranged along the first rails in an extending mode, and the sliding driving unit is in transmission connection with the movable rack through a gear and is used for driving the rotary lifting platform to slide relatively along the extending direction of the first rails.

Therefore, the gear and the rack are meshed, so that the whole lifting platform body is driven to move in the horizontal direction along the first track in the horizontal direction.

As one implementation mode of the utility model, the rotary lifting platform assembly further comprises rollers and a lifting platform, wherein one roller is arranged at each of four corners of the lifting platform, the fixed base assembly further comprises a limiting square pipe arranged on the base, the rollers are arranged between the base and the limiting square pipe, and the limiting square pipe is used for limiting the rollers.

Therefore, the base is matched with the limiting square tube, the freedom degree of the idler wheels connected with the lifting platform is limited, and the whole platform support is guaranteed not to overturn in the working process.

As an embodiment of the present utility model,

the sampler also comprises a negative pressure assembly, wherein the negative pressure assembly comprises a fan, a valve, a first three-way valve, a second three-way valve, a dust remover and a salon;

one end of the second three-way valve is communicated with the saxophone, the saxophone is communicated with the dust remover, the dust remover is communicated with the first three-way valve, one end of the first three-way valve is communicated with the fan, the fan is communicated with the valve, the other end of the second three-way valve is communicated with the valve, and the other end of the first three-way valve is communicated with air.

Thus, the negative pressure grain suction of the sampling tube and the positive pressure back-blowing of the tube can be realized.

The foregoing summary is merely an overview of the present utility model, and may be implemented according to the text and the accompanying drawings in order to make it clear to a person skilled in the art that the present utility model may be implemented, and in order to make the above-mentioned objects and other objects, features and advantages of the present utility model more easily understood, the following description will be given with reference to the specific embodiments and the accompanying drawings of the present utility model.

Drawings

The drawings are only for purposes of illustrating the principles, implementations, applications, features, and effects of the present utility model and are not to be construed as limiting the utility model.

In the drawings of the specification:

fig. 1 is a schematic view of the overall structure of a sampler according to one embodiment of the present utility model;

FIG. 2 is a schematic illustration of the structure of a pitch arm assembly according to one embodiment of the utility model;

FIG. 3 is a schematic view of a moving module of a sampling tube according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of a sampling tube oscillation module according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the structure of the mobile drive unit of the sampling tube assembly according to one embodiment of the present utility model;

FIG. 6 is a schematic diagram of a swing lift platform assembly according to one embodiment of the present utility model;

FIG. 7 is a schematic diagram of a negative pressure assembly according to an embodiment of the present utility model;

FIG. 8 is a view showing a negative pressure grain sucking state of the negative pressure assembly according to an embodiment of the present utility model;

fig. 9 is a positive pressure blowback use state of the negative pressure assembly according to an embodiment of the present utility model.

Reference numerals referred to in the above drawings are explained as follows:

1. a fixed base assembly, 11, a first rail, 12 and a hanging ring,

2. the rotary lifting platform assembly, 21, the sliding driving unit, 22, the rotary driving unit, 23, the pitching driving unit, 24, the lifting platform, 25, the guide post, 26, the lifting driving unit, 27, the hinged supporting point, 28, the movable rack, 29, the roller, 30 and the limit square tube,

3. pitch arm assembly, 31, pitch arm, 32, second track, 33, belt,

4. the sampling tube assembly 41, the mobile driving unit 42, the sampling tube mobile module 421, the driving gear 422, the opening guide sleeve 423, the movable base 424, the traction rack 425, the driving motor 426, the swing arm assembly 43, the sampling tube swinging module 431, the swing arm shaft 432, the mobile sliding table 433, the electric push rod assembly 44 and the sampling tube.

Detailed Description

In order to describe the possible application scenarios, technical principles, practical embodiments, and the like of the present utility model in detail, the following description is made with reference to the specific embodiments and the accompanying drawings. The embodiments described herein are only for more clearly illustrating the technical aspects of the present utility model, and thus are only exemplary and not intended to limit the scope of the present utility model.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the utility model. The appearances of the phrase "in various places in the specification are not necessarily all referring to the same embodiment, nor are they particularly limited to independence or relevance from other embodiments. In principle, in the present utility model, as long as there is no technical contradiction or conflict, the technical features mentioned in each embodiment may be combined in any manner to form a corresponding implementable technical solution.

Unless defined otherwise, technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present utility model pertains; the use of related terms herein is for the purpose of describing particular embodiments only and is not intended to limit the utility model.

In the description of the present utility model, the term "and/or" is a representation for describing a logical relationship between objects, which means that three relationships may exist, for example a and/or B, representing: there are three cases, a, B, and both a and B. In addition, the character "/" herein generally indicates that the front-to-back associated object is an "or" logical relationship.

In the present utility model, terms such as "first" and "second" are used merely to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual number, order, or sequence of such entities or operations.

Without further limitation, the use of the terms "comprising," "including," "having," or other like terms in this specification is intended to cover a non-exclusive inclusion, such that a process, method, or article of manufacture that comprises a list of elements does not include additional elements but may include other elements not expressly listed or inherent to such process, method, or article of manufacture.

As in the understanding of "review guidelines," the expressions "greater than", "less than", "exceeding" and the like are understood to exclude this number in the present utility model; the expressions "above", "below", "within" and the like are understood to include this number. Furthermore, in the description of embodiments of the present utility model, the meaning of "a plurality of" is two or more (including two), and similarly, the expression "a plurality of" is also to be understood as such, for example, "a plurality of" and the like, unless specifically defined otherwise.

In the description of embodiments of the present utility model, spatially relative terms such as "center," "longitudinal," "transverse," "length," "width," "thickness," "up," "down," "front," "back," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counter-clockwise," "axial," "radial," "circumferential," etc., are used herein as a basis for the description of the embodiments or as a basis for the description of the embodiments, and are not intended to indicate or imply that the devices or components referred to must have a particular position, a particular orientation, or be configured or operated in a particular orientation and therefore should not be construed as limiting the embodiments of the present utility model.

Unless specifically stated or limited otherwise, the terms "mounted," "connected," "affixed," "disposed," and the like as used in the description of embodiments of the utility model should be construed broadly. For example, the "connection" may be a fixed connection, a detachable connection, or an integral arrangement; the device can be mechanically connected, electrically connected and communicated; it can be directly connected or indirectly connected through an intermediate medium; which may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the embodiments of the present utility model can be understood by those skilled in the art to which the present utility model pertains according to circumstances.

The movable sampler in the prior art rotates the sampling tube to the upper part of the grain pile through the hanging frame, inserts the sampling tube into the grain pile, has only two degrees of freedom of rotation and insertion, is inconvenient to use and does not meet the current automatic requirement.

The sampler can be applied to various application scenes of grain sampling.

Referring to fig. 1 to 9, according to some embodiments of the present utility model, the present embodiment relates to a sampler, including:

the fixed base assembly 1, the fixed base assembly 1 comprises a base and a first rail 11 arranged on the base, and the first rail 11 extends along the length direction of the base;

the rotary lifting platform assembly 2 is arranged on the fixed base assembly 1 in a sliding manner through the first rail 11, the rotary lifting platform 24 comprises a sliding driving unit 21, and the sliding driving unit 21 is used for driving the rotary lifting platform 24 to slide relatively along the extending direction of the first rail 11;

the pitching arm assembly 3, the pitching arm assembly 3 is arranged on the rotary lifting platform assembly 2, the pitching arm assembly 3 comprises a pitching arm 31, and the rotary lifting platform assembly 2 further comprises a rotary driving unit 22 for driving the pitching arm 31 to rotate and a pitching driving unit 23 for driving the pitching arm 31 to pitch; and

a sampling tube assembly 4; the second track 32 is arranged on the pitching arm 31, the sampling tube assembly 4 is arranged on the pitching arm 31 in a sliding way through the second track 32, the second track 32 extends along the length direction of the pitching arm 31, the sampling tube assembly 4 comprises a moving driving unit 41 for driving the sampling tube assembly 4 to relatively slide along the extending direction of the second track 32, and the sampling tube assembly 4 also comprises a sampling tube 44, a sampling tube moving module 42 for driving the sampling tube 44 to move and a sampling tube swinging module 43 for driving the sampling tube 44 to rotate;

the sampling tube can be contracted to be parallel to the pitching arm through the matching of the movable driving unit, the sampling tube moving module and the sampling tube swinging module.

In other embodiments, a camera may be added to the pitching arm, and the camera has two functions, a first function, and can identify the size of the carriage through AI, and determine the position of the sampling point: and a second function of identifying grain types.

As shown in fig. 1 and 2, the pitch arm assembly 3 is responsible for the movement of the sampling tube 44; the rotary lifting platform assembly 2 is responsible for the lifting of the pitching arm 31 by 350mm, the pitch angle of 55 degrees and the rotary angle of 180 degrees; the fixed base assembly 1 provides installation fastening and support for the whole machine and also provides a translation distance of 7 meters in the horizontal direction for the rotary platform.

In this embodiment, the sliding driving unit 21 is used for driving the rotary lifting platform 24 to relatively slide along the extending direction of the first track 11, the rotary driving unit 22 drives the pitching arm 31 to rotate, the pitching driving unit 23 drives the pitching arm 31 to pitch, the moving driving unit 41 drives the sampling tube assembly 4 to relatively slide along the extending direction of the second track 32, the sampling tube moving module 42 drives the sampling tube 44 to move, and the sampling tube swinging module 43 drives the sampling tube 44 to rotate;

in the use process, the rotary lifting platform 24 is driven to horizontally move on the fixed base to a designated position, the rotary lifting platform 24 rotates the pitching arm 31 firstly, the pitching arm 31 is driven to incline from a horizontal state through the rotary lifting platform 24, the inserting angle of the sampling pipe 44 is changed through the sampling pipe swinging module 43, the sampling pipe moving module 42 can drive the sampling pipe 44 translation mechanism driving module to move on the pitching arm 31, the sampling pipe 44 is inserted into grains, and the sampling pipe 44 translation mechanism driving module can also drive the sampling pipe 44 to move again, so that the grains of each layer of grain pile are sampled; in this way, through the sliding driving unit 21, the rotation driving unit 22, the pitching driving unit 23, the moving driving unit 41, the sampling tube moving module 42 and the sampling tube swinging module 43, the movement of 446 degrees of freedom of the sampling tube can be realized, the use is convenient, the sampling device can adapt to the sampling conditions of various grains, and the current requirement on automation is met. The sampling tube can be contracted to be parallel to the pitching arm through the cooperation of the movable driving unit, the sampling tube moving module and the sampling tube swinging module. The sampling tube can be collected, so that the movement and the transportation are convenient.

According to some embodiments of the present utility model, optionally, the sampling tube moving module 42 includes a driving gear 421, an opening guide sleeve 422, a movable base 423, a traction rack 424, and a driving motor 425, where the driving motor 425, the opening guide sleeve 422, the traction rack 424, and the sampling tube 44 are disposed on the movable base 423, the traction rack 424 extends along a length direction of the sampling tube 44, the driving gear 421 is meshed with the traction rack 424, and the driving motor 425 is used to drive the driving gear 421 to rotate, so as to drive the movable base 423 to relatively slide along the extending direction of the traction rack 424, and the opening guide sleeve 422 is used to guide the sampling tube 44.

As shown in fig. 3, the sampling tube 44 is a hard sampling tube 44, and the sampling tube moving module 42 includes a driving motor 425, a driving gear 421, a traction rack 424, an opening guide sleeve 422, and a movable base 423. When the device works, the motor driving gear 421 drives the rack and the sampling tube 44 to move along the vertical direction, so that the sampling tube 44 is inserted into the grain pile to suck grains, and the opening guide sleeve 422 plays a role in guiding and antifriction.

Thus, in use, the drive motor 425 drives the drive gear 421 to rotate, and the drive gear 421 drives the traction rack 424 and the sampling tube 44 to move together, so that the sampling tube 44 is inserted into the grain pile suction grain opening guide sleeve 422 to play a guiding antifriction role.

According to some embodiments of the present utility model, optionally, the sampling tube moving module 42 includes four open guide sleeves 422, the four open guide sleeves 422 are sequentially arranged on the movable base 423, the sampling tube 44 sequentially passes through the four open guide sleeves 422, two open guide sleeves 422 are disposed on the left side of the driving motor 425, two open guide sleeves 422 are disposed on the right side of the driving motor 425, and a bushing is disposed in the open guide sleeve 422.

In this way, by providing two split guide sleeves 422 on each of the left and right sides of the driving motor 425, the movement stability of the sampling tube 44 is improved.

According to some embodiments of the present utility model, optionally, the movable base 423 is provided with a swing arm assembly 426, the sampling tube swinging module 43 includes a swing arm shaft 431, a moving sliding table 432, and an electric push rod assembly 433, the swing arm assembly 426 is fixedly connected with the movable base 423, the swing arm assembly 426 includes a rotation hole matched with the swing arm shaft 431, the swing arm shaft 431 is rotatably disposed in the rotation hole, the swing arm shaft 431 is fixedly connected with the moving sliding table 432, the swing arm assembly 426 further includes a connection portion connected with the electric push rod assembly 433, and the electric push rod assembly 433 is used for driving the swing arm assembly 426 and the movable base 423 to rotate around the swing arm shaft 431, so as to drive the sampling tube 44 to rotate.

As shown in fig. 4, in this way, the electric push rod assembly 433 is energized, which drives the swing arm assembly 426 to rotate about the swing arm shaft 431, thereby driving the sampling tube 44 to switch from a horizontal operating condition with the pitching arm to a vertical operating condition with the ground, and vice versa.

According to some embodiments of the present utility model, optionally, two second rails 32 are disposed on the pitching arm 31 and parallel to each other, the movable sliding table 432 is slidably disposed on the pitching arm 31 through the two second rails 32, and the movable driving unit 41 is configured to drive the movable sliding table 432 to relatively move on the pitching arm 31 along the extending direction of the second rails 32 in a manner of being transmitted by the belt 33.

As shown in fig. 5, in this way, the mobile driving unit 41 drives the mobile sliding table 432 to move on the pitching arm 31 along the second track 32 in a manner of transmission through the belt 33, and the pitching arm 31 is formed by welding profile steel, so that sufficient strength and rigidity are ensured.

In other embodiments, the moving sliding table 432 is driven to move on the pitching arm 31 along the second track 32 by driving the screw rod to rotate.

According to some embodiments of the present utility model, optionally, the rotary lifting platform assembly 2 further includes a lifting platform 24, two or more guide posts 25, and a lifting driving unit 26, where the two or more guide posts 25 are disposed along a vertical direction, the lifting platform 24 is slidably disposed on the two or more guide posts 25, and the lifting driving unit 26 is used to drive the lifting platform 24 to relatively slide along the extending direction of the guide posts 25.

In this way, the lifting drive unit 26 can lift the lifting platform 24 up the guide posts 25 by a height of 350 mm.

According to some embodiments of the present utility model, optionally, a pitch arm 31 is provided on the swing and lift platform assembly 2 via a hinge pivot 27, and a pitch drive unit 23 is provided for driving the pitch arm 31 to rotate about the hinge pivot 27.

In this way, the pitch arm 31 can be rotated about the hinge fulcrum 27 by the pitch drive unit 23, producing a 55 ° pitch angle.

According to some embodiments of the present utility model, optionally, two first rails 11 disposed in parallel are disposed on the fixed base assembly 1, a moving rack 28 is disposed between the two first rails 11, the moving rack 28 is disposed along the first rails 11 in an extending manner, and the sliding driving unit 21 is in driving connection with the moving rack 28 through a gear, so as to drive the rotary lifting platform 24 to relatively slide along the extending direction of the first rails 11.

In this way, the gear and the rack are meshed, so that the whole lifting platform 24 body is driven to move horizontally along the first track 11 in the horizontal direction.

According to some embodiments of the present utility model, optionally, the rotary lifting platform assembly 2 further includes a roller 29 and a lifting platform 24, four corners of the lifting platform 24 are provided with one roller 29, the fixed base assembly 1 further includes a limiting square tube 30 disposed on the base, the roller 29 is disposed between the base and the limiting square tube 30, and the limiting square tube 30 is used for limiting the roller 29.

Thus, the cooperation of the base and the limiting square tube 30 limits the freedom degree of the roller 29 connected with the lifting platform 24, and ensures that the whole platform bracket does not topple in the working process.

According to some embodiments of the utility model, optionally, the base is provided with more than two suspension rings 12.

As such, the lifting ring 12 is the cable lifting location of the entire sampler.

As shown in fig. 6, the pitch drive unit 23 includes an electric putter a capable of swinging the pitch arm 31 about a fulcrum to produce a pitch angle of 55 °; the lifting driving unit 26 comprises an electric push rod b, and can lift the whole rotary platform upwards by 350mm according to the cooperation of the guide post 25 and the guide sleeve; the steel member of the rotary platform and the pitching pivot are also mounting platforms of the electric push rod a and the electric push rod b; the guide post 25 is matched with the guide sleeve of the rotary platform, so that the guide of the vertical lifting of the rotary platform is ensured; the lifting platform 24 is used as a rotation pivot of the rotation platform and an installation platform of the rotation motor and the worm gear reducer; the sliding driving unit 21 comprises a driving motor 425, wherein the driving motor drives a gear 421 through a motor shaft, and the gear is meshed with a rack, so that the whole lifting platform 24 body is driven to move in the horizontal direction along a linear guide rail in the horizontal direction; the movable rack 28 is meshed with a driving motor 425 gear which horizontally moves the lifting platform 24; the first rail 11 is a guide for the horizontal movement of the lifting platform 24; the pitching driving unit 23 comprises a pitching driving motor 425 which drives the electric push rod a to move so as to ensure pitching swinging of the pitching arm 31 around a fulcrum; the limiting square tube 30 ensures that the whole platform bracket does not topple in the working process by limiting the freedom degree of the roller 29 connected with the lifting platform 24; the lifting driving unit 26 comprises a lifting driving motor 425 for driving the electric push rod b to move so as to ensure the movement of the lifting platform 24 in the vertical direction; the rotary driving unit 22 comprises a rotary motor with a worm gear for decelerating, and provides driving force for the rotary platform; the roller 29 is connected with the lifting platform 24 and works together with the limit square tube 30 to ensure that the whole platform does not topple during working; the lifting ring 12 is the cable lifting position of the whole mechanism.

Secondly, the negative pressure grain suction pipeline of the existing sampler system adopts an airflow unidirectional scheme in design, and the pipeline blockage problem easily occurs along with the time. The negative pressure system can provide the pipeline with self-dredging effect.

As shown in fig. 7, the negative pressure assembly mainly comprises a fan, a valve, a first three-way valve, a second three-way valve, a dust remover and a salon; one end of the second three-way valve is communicated with the saxophone, the saxophone is communicated with the dust remover, the dust remover is communicated with the first three-way valve, one end of the first three-way valve is communicated with the fan, the fan is communicated with the valve, the other end of the second three-way valve is communicated with the valve, and the other end of the first three-way valve is communicated with air. Thus, the negative pressure grain suction of the sampling tube and the positive pressure back-blowing of the tube can be realized.

Forward grain sucking mode, as shown in fig. 8: the sampling tube 44 sucks in the grain, passes through the second three-way valve, enters the saxophone, the grain enters the grain hopper through the bottom of the saxophone, the dust enters the dust remover, and the dust is discharged through the first three-way valve, the fan and the valve.

Reverse through pipe mode, as shown in fig. 9: air enters the blower, valve, and second three-way valve through the first three-way valve to the sampling tube 44. The sampling tube 44 is reverse-vented. The grain sucking is negative pressure, and the back blowing is positive pressure.

In this embodiment, the power mechanism or power unit includes, but is not limited to, an engine, an electric motor, a pneumatic tool, a hydraulic pump, and the like. The power unit also comprises a direct power source and an indirect power source, wherein the direct power source can provide power for the power unit, such as an engine, a motor and the like, and the indirect power source comprises a cylinder, a hydraulic cylinder and the like. The power mechanism or the power unit can drive the execution unit to do linear reciprocating motion through the cooperation of a gear and a rack, the cooperation of a sliding block and a sliding groove, the cooperation of a screw rod and a nut, and the like.

It should be noted that, although the foregoing embodiments have been described herein, the scope of the present utility model is not limited thereby. Therefore, based on the innovative concepts of the present utility model, alterations and modifications to the embodiments described herein, or equivalent structures or equivalent flow transformations made by the present description and drawings, apply the above technical solution, directly or indirectly, to other relevant technical fields, all of which are included in the scope of the utility model.

Claims (10)

1. A sampler, comprising:

the fixed base assembly comprises a base and a first rail arranged on the base, and the first rail extends along the length direction of the base;

the rotary lifting platform assembly is arranged on the fixed base assembly in a sliding manner through the first rail, and comprises a sliding driving unit which is used for driving the rotary lifting platform to slide relatively along the extending direction of the first rail;

the pitching arm assembly is arranged on the rotary lifting platform assembly, the pitching arm assembly comprises a pitching arm, and the rotary lifting platform assembly further comprises a rotary driving unit for driving the pitching arm to rotate and a pitching driving unit for driving the pitching arm to pitch; and

a sampling tube assembly; the pitching arm is provided with a second track, the sampling tube assembly is arranged on the pitching arm in a sliding manner through the second track, the second track extends along the length direction of the pitching arm, the sampling tube assembly comprises a mobile driving unit for driving the sampling tube assembly to relatively slide along the extending direction of the second track, and the sampling tube assembly further comprises a sampling tube, a sampling tube moving module for driving the sampling tube to move and a sampling tube swinging module for driving the sampling tube to rotate;

the sampling tube can be contracted to be parallel to the pitching arm through the cooperation of the movable driving unit, the sampling tube moving module and the sampling tube swinging module.

2. The sampler of claim 1, wherein the sampler tube moving module comprises a driving gear, an opening guide sleeve, a movable base, a traction rack and a driving motor, wherein the driving motor, the opening guide sleeve, the traction rack and the sampler tube are arranged on the movable base, the traction rack extends along the length direction of the sampler tube, the driving gear is meshed with the traction rack, the driving motor is used for driving the driving gear to rotate, so that the movable base is driven to relatively slide along the extending direction of the traction rack, and the opening guide sleeve is used for guiding the sampler tube.

3. The sampler according to claim 2, wherein the sampler tube moving module comprises four opening guide sleeves, the four opening guide sleeves are sequentially arranged on the movable base, the sampler tube sequentially passes through the four opening guide sleeves, two opening guide sleeves are arranged on the left side of the driving motor, two opening guide sleeves are arranged on the right side of the driving motor, and a bushing is arranged in the opening guide sleeve.

4. The sampler of claim 2, wherein the movable base is provided with a swing arm assembly, the sampling tube swinging module comprises a swing arm shaft, a movable sliding table and an electric push rod assembly, the swing arm assembly is fixedly connected with the movable base, the swing arm assembly comprises a rotating hole matched with the swing arm shaft, the swing arm shaft is rotatably arranged in the rotating hole, the swing arm shaft is fixedly connected with the movable sliding table, the swing arm assembly further comprises a connecting part connected with the electric push rod assembly, and the electric push rod assembly is used for driving the swing arm assembly and the movable base to rotate around the swing arm shaft so as to drive the sampling tube to rotate.

5. The sampler of claim 4, wherein two second rails parallel to each other are disposed on the pitch arm, the movable sliding table is slidably disposed on the pitch arm through the two second rails, and the movable driving unit is configured to drive the movable sliding table to relatively move on the pitch arm along the extending direction of the second rails in a belt transmission manner.

6. The sampler of claim 1, wherein the rotary lifting platform assembly further comprises a lifting platform, more than two guide posts and a lifting driving unit, the more than two guide posts are arranged in a vertical extending mode, the lifting platform is arranged on the more than two guide posts in a sliding mode, and the lifting driving unit is used for driving the lifting platform to slide relatively along the extending direction of the guide posts.

7. The sampler of claim 1 wherein the pitch arm is disposed on the rotary lift platform assembly via a hinge pivot, the pitch drive unit being configured to drive the pitch arm to rotate about the hinge pivot.

8. The sampler of claim 7, wherein two parallel first rails are arranged on the fixed base assembly, a movable rack is arranged between the two first rails, the movable rack extends along the first rails, and the sliding driving unit is in transmission connection with the movable rack through a gear and is used for driving the rotary lifting platform to slide relatively along the extending direction of the first rails.

9. The sampler of claim 8, wherein the rotary lifting platform assembly further comprises rollers and a lifting platform, wherein one of the rollers is arranged at each of four corners of the lifting platform, the fixed base assembly further comprises a limit square tube arranged on the base, the rollers are arranged between the base and the limit square tube, and the limit square tube is used for limiting the rollers.

10. The sampler of claim 1, further comprising a negative pressure assembly comprising a blower, a valve, a first three-way valve, a second three-way valve, a dust catcher, and a salon;

one end of the second three-way valve is communicated with the saxophone, the saxophone is communicated with the dust remover, the dust remover is communicated with the first three-way valve, one end of the first three-way valve is communicated with the fan, the fan is communicated with the valve, the other end of the second three-way valve is communicated with the valve, and the other end of the first three-way valve is communicated with air.