Fixed sampling machine

Abstract

The utility model discloses a fixed sampling machine, and relates to the technical field of sampling machines, the fixed sampling machine comprises a stand column and a tower arm on the top of the stand column, the tower arm is driven by a power assembly A to rotate and is arranged on the stand column; a sampling mechanism is arranged on the tower arm, the sampling mechanism comprises a sampling seat and a power assembly B for driving the sampling seat to move on the tower arm, a position sensor is arranged on the tower arm corresponding to a movement limit position of the sampling seat, and a power assembly C for driving a sampling pipe to lift is arranged on the sampling seat; the power assembly C comprises a power element C, a driving pressing wheel and a driven pressing wheel are arranged on the sampling seat at intervals, the power element C drives the driving pressing wheel to rotate, and the sampling pipe is arranged between the driving pressing wheel and the driven pressing wheel in an extruded mode. Therefore, the problem of grain sampling is solved, and overall quality detection of grains is realized.

Description

Technical Field

[0001] This application relates to the technical field of sampling machines, and in particular to a fixed sampling machine. Background Art

[0002] China is a major grain-producing country with high yields, large reserves, and extensive circulation channels. Sampling of samples at each link is an important task. When the grain is transported to the destination, the grain is sampled and tested. During the sampling and testing, the grain is transported to the sampling machine and the sampling machine is used to sample the grain to reflect the overall grain quality. Utility Model Content

[0003] To solve the problem of grain sampling and achieve the overall quality detection of grain, this application provides a fixed sampling machine.

[0004] The fixed sampling machine provided by this application adopts the following technical solutions.

[0005] A fixed sampling machine includes a column and a boom at the top of the column. The boom is rotationally arranged on the column driven by a power component A;

[0006] A sampling mechanism is arranged on the boom. The sampling mechanism includes a sampling seat and a power component B that drives the sampling seat to move on the boom. A position sensor is arranged on the boom corresponding to the extreme positions of the movement of the sampling seat. A power component C for driving the sampling tube to lift is arranged on the sampling seat;

[0007] The power component C includes a power element C. An active pressure wheel and a driven pressure wheel are arranged at intervals on the sampling seat. The power element C drives the active pressure wheel to rotate, and the sampling tube is squeezed and arranged between the active pressure wheel and the driven pressure wheel;

[0008] The power element C and the active pressure wheel are both arranged on a moving plate. The moving plate is movably arranged on the sampling seat along the direction of approaching or departing from the driven pressure wheel. A pressing component is arranged between the moving plate and the sampling seat, and the pressing component is used to move the moving plate in the direction of approaching the driven pressure wheel.

[0009] By adopting the above technical solutions, the boom is rotationally arranged on the column, realizing a large-range movement in the same horizontal plane. The sampling mechanism is movably arranged on the boom, that is, moving along the boom. Cooperating with the rotation of the boom, the sampling tube can be moved to any position in the same horizontal plane. Through the lifting setting of the sampling tube, samples can be extracted in different height ranges. The sampling tube is squeezed by the active pressure wheel and the driven pressure wheel, and the rotation of the active pressure wheel makes the sampling tube lift. And a force is applied between the active pressure wheel and the driven pressure wheel through the pressing component to press the sampling tube to ensure that the sampling tube is tightly pressed.

[0010] Optionally, the pressing assembly includes a guide rod which is arranged along the moving direction of the moving plate. One end of the guide rod is connected to the sampling seat. An extrusion plate is arranged on the moving plate. The other end of the guide rod penetrates through the extrusion plate. A spring is sleeved on the guide rod after penetrating through the extrusion plate, and a nut which abuts against the spring is screwed onto the other end of the guide rod.

[0011] By adopting the above technical solution, under the elastic force of the spring, the moving plate is pushed to move towards the direction close to the driven pressure wheel, so that the driving pressure wheel approaches the driven pressure wheel, and then the sampling tube is pressed tightly. Moreover, the spring has a large compression stroke and is adjustable, which ensures that the sampling tube is pressed and prevents the sampling tube from sliding down and falling off, and at the same time avoids squeezing and damaging the sampling tube.

[0012] Optionally, the driven pressure wheel is arranged on a fixed plate which is arranged on the sampling seat.

[0013] Optionally, a guide seat for guiding the lifting of the sampling tube is arranged on the sampling seat.

[0014] By adopting the above technical solution, through the arrangement of the guide seat, the lifting of the sampling tube is guided, which avoids the sampling tube from deviating and getting off the sampling position.

[0015] Optionally, the power assembly B includes a power element B arranged on the tower arm. A chain is arranged along the length direction of the tower arm. Both ends of the chain are supported on the tower arm by sprockets. The power element B drives any one of the sprockets to rotate, and the chain is connected to the sampling seat.

[0016] By adopting the above technical solution, the chain is driven to rotate by the sprocket. With the rotation of the sprocket, the sampling seat is driven to move, and the moving mode of driving the sampling seat is simple and reliable.

[0017] Optionally, a moving groove is arranged along the length direction of the tower arm. Moving wheel assemblies are arranged on both sides of the sampling seat. The moving wheel assembly includes a wheel plate connected to the sampling seat. Two moving wheels are arranged on the wheel plate. The wheel plate is located in the moving groove, and the two moving wheels clamp the tower arm inside the moving groove from top and bottom.

[0018] By adopting the above technical solution, the tower arm inside the moving groove is clamped from top and bottom by the two moving wheels, and the moving wheels are in rolling contact with the tower arm, realizing the moving cooperation between the sampling seat and the tower arm and the movement of the sampling mechanism on the tower arm.

[0019] Optionally, the power assembly A includes a power element A arranged on the tower arm. A rotating gear ring is fixedly arranged at the top end of the column, and the power element A drives a rotating gear meshing with the rotating gear ring to rotate.

[0020] By adopting the above technical solution, the power element A is set to drive the gear meshing with the ring gear to rotate, thereby causing the tower arm to rotate on the column.

[0021] Optionally, a tower cap column is provided on the tower arm, the tower cap column is connected to two ends of the tower arm via a cable, and a counterweight block is provided on the tower arm.

[0022] By adopting the above technical solution, the strength of the tower arm is enhanced through the setting of the tower cap column and the cable, and the stability of the tower arm is improved by the setting of the counterweight block, which helps to increase the elongation length of the tower arm and improve the operating range of the fixed sampling machine.

[0023] In summary, this application at least includes the following beneficial effects:

[0024] 1. The present application is to rotate the tower arm on the column, and the power element A drives the gear meshing with the gear ring to rotate, so that the tower arm rotates on the column, and the sampling tube can be moved in a larger range in the same horizontal plane. A chain is arranged along the length direction of the tower arm, and both ends of the chain are supported on the tower arm through sprockets. The power element B drives any sprocket to rotate, and the chain is connected to the sampling seat, and the chain is driven to rotate by the sprocket. With the rotation of the sprocket, the sampling seat is driven to move, and the movement method of the sampling seat is simple and reliable. The sampling mechanism is movably arranged on the tower arm, that is, it moves along the tower arm, and with the rotation of the tower arm, the sampling tube can be moved to any position in the same horizontal plane. The sampling machine of the present application is simple to use, has a large sampling range and accurate position, and has a high sampling efficiency. The grain is transported to the sampling machine and the sampling machine is used to sample and inspect the grain, so as to realize the overall quality inspection of the grain.

[0025] 2. The sampling tube of the present application is squeezed and clamped by the active pressure wheel and the driven pressure wheel. Under the elastic force of the spring, the movable plate is pushed to move towards the driven pressure wheel, so that the active pressure wheel is close to the driven pressure wheel, and the sampling tube is compressed. The spring has a large compression stroke and is also adjustable, which ensures that the sampling tube is compressed, avoids the sampling tube from sliding down and falling, and avoids squeezing and damaging the sampling tube. Through the lifting setting of the sampling tube, samples can be extracted within different height ranges.

[0026] 3. The tower arm of the present application is provided with a tower cap column, which is connected to both ends of the tower arm by a cable, and a counterweight is provided on the tower arm. The tower cap column and the cable are provided to enhance the strength of the tower arm, and the counterweight is provided to enhance the stability of the tower arm, which helps to increase the elongation length of the tower arm and improve the operating range of the fixed sampling machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] 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 drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0028] Figure 1 It is a schematic structural diagram of a fixed sampling machine (when the sampling mechanism is close to the rotation center of the tower arm).

[0029] Figure 2 is Figure 1 The enlarged structural diagram of the partial A in [the figure].

[0030] Figure 3 It is a schematic structural diagram of a fixed sampling machine (when the sampling mechanism is at the end of one end of the tower arm).

[0031] Figure 4 is Figure 3 The enlarged structural diagram of the partial B in [the figure].

[0032] Figure 5 It is a schematic structural diagram of the sampling mechanism.

[0033] Figure 6 It is a schematic structural diagram of the sampling mechanism from another perspective.

[0034] Figure 7 It is a schematic structural diagram of the sampling mechanism from yet another perspective.

[0035] Explanation of reference numerals: 1, column; 2, tower arm; 3, power assembly A; 301, power element A; 302, rotating gear ring; 4, tower cap column; 5, cable; 6, counterweight; 7, sampling mechanism; 701, sampling seat; 702, moving wheel assembly; 7021, wheel plate; 7022, moving wheel; 703, power assembly B; 7031, power element B; 7032, chain; 7033, sprocket; 704, position sensor; 705, power assembly C; 7051, driven pressure wheel; 7052, fixing plate; 7053, driving pressure wheel; 7054, moving plate; 7055, power element C; 706, pressing assembly; 7061, guide rod; 7062, extrusion plate; 7063, spring; 7064, nut; 707, guide seat; 8, sampling tube. Detailed implementation manners

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] The following is combined with Figures 1 to 7 This application is described in further detail.

[0038] The embodiment of the present application discloses a fixed sampling machine.

[0039] Reference Figures 1 to 7 , a fixed type sampling machine, comprising:

[0040] The column 1 has a base at its bottom.

[0041] The tower arm 2 is horizontally rotated on the top of the column 1 through a rotating platform. The cantilever at one end of the tower arm 2 is longer than the cantilever at the other end. The rotation of the tower arm 2 is driven by a power component A3. The power component A3 includes a power element A301. The power element A301 can be a motor reduction unit, which is vertically downwardly arranged on the tower arm 2. A gear is arranged on the output shaft of the motor reduction unit. A rotating ring gear 302 is coaxially fixed with the rotation center of the tower arm 2 at the top of the column 1. The gear and the ring gear 302 are meshed for transmission. Through the setting of the power element A301, the gear meshed with the ring gear 302 is driven to rotate, thereby causing the tower arm 2 to rotate on the column 1.

[0042] On the tower arm 2, a tower cap column 4 is arranged at the rotation center position, and the tower cap column 4 is connected to both ends of the tower arm 2 through a cable 5, and a counterweight block 6 is arranged at the other end of the tower arm 2, that is, the shorter cantilever end. The arrangement of the tower cap column 4 and the cable 5 enhances the strength of the tower arm 2, and the arrangement of the counterweight block 6 improves the stability of the tower arm 2, which helps to increase the elongation length of the tower arm 2 and improve the operating range of the fixed type sampling machine.

[0043] The tower arm 2 is composed of two longitudinal I-shaped profiles arranged in parallel and at intervals. The two longitudinal I-shaped profiles are connected by a plurality of transverse I-shaped profiles, and a moving groove 201 is formed between the two longitudinal I-shaped profiles.

[0044] The sampling mechanism 7 is provided at one end of the tower arm 2, that is, the cantilever end with a longer length, and is movably arranged along the length direction of the tower arm 2. The sampling mechanism 7 includes a sampling seat 701. On both sides of the sampling seat 701, two sets of moving wheel assemblies 702 are arranged at intervals. The moving wheel assembly 702 includes a wheel plate 7021 connected to the sampling seat 701. Two moving wheels 7022 are arranged vertically on the wheel plate 7021. The wheel plate 7021 of each moving wheel assembly 702 is located in the moving groove 201. The two moving wheels 7022 in each moving wheel assembly 702 clamp the tower arm 2 inside the moving groove 201 from above and below, that is, clamp the longitudinal I-beam profile. By clamping the tower arm 2 inside the moving groove 201 from above and below with the two moving wheels 7022, and the moving wheels 7022 are in rolling contact with the tower arm 2, the moving cooperation between the sampling seat 701 and the tower arm 2 is realized.

[0045] The sampling seat 701 is driven by a power component B703 to move and is arranged on the tower arm 2. The power component B703 includes a power element B7031 arranged on the tower arm 2. The power element B7031 is arranged near the rotation center of the tower arm 2. The power element B7031 can be a motor reduction unit. A chain 7032 is arranged along the length direction of the tower arm 2. The two ends of the chain 7032 are supported on the tower arm 2 by sprockets 7033. The output shaft of the motor reduction unit drives the sprocket 7033 near the rotation center to rotate. The chain 7032 is connected to the sampling seat 701. By driving the chain 7032 to rotate with the sprocket 7033, as the sprocket 7033 rotates, the sampling seat 701 is driven to move. The moving mode of driving the sampling seat 701 is simple and reliable, and the movement of the sampling mechanism 7 on the tower arm 2 is realized.

[0046] Position sensors 704 are arranged on the tower arm 2 near the positions of the two sprockets 7033, that is, corresponding to the extreme positions of the movement of the sampling seat 701, for detecting the extreme positions of the movement mechanism on the tower arm 2 and stopping moving when reaching the extreme positions.

[0047] A power component C705 for driving the sampling tube 8 to lift and lower is arranged on the sampling seat 701.

[0048] The power component C705 includes two driven pressure wheels 7051. Grooves are provided on the outer wheel surfaces of the driven pressure wheels 7051. The two driven pressure wheels 7051 are arranged vertically at intervals on a fixing plate 7052. The fixing plate 7052 is fixed on the sampling seat 701.

[0049] The power assembly C705 further includes two driving pressure wheels 7053. Grooves are formed on the outer wheel surfaces of the driving pressure wheels 7053. The two driving pressure wheels 7053 are arranged at intervals vertically up and down on the moving plate 7054. A power element C7055 is also arranged on the moving plate 7054. The power element C7055 can be a motor reducer C. The motor reducer C drives the two driving pressure wheels 7053 to rotate through chain drive. The moving plate 7054 is slidably arranged on the sampling seat 701 along the direction of approaching or departing from the driven pressure wheel 7051 through a slider rail. The two driving pressure wheels 7053 are aligned with the two driven pressure wheels 7051 one by one. When approaching, the two driving pressure wheels 7053 are respectively aligned with the two driven pressure wheels 7051, and the two are mutually extruded, and a sampling tube 8 is clamped therebetween.

[0050] A pressing assembly 706 is arranged between the moving plate 7054 and the sampling seat 701. The pressing assembly 706 is used to move the moving plate 7054 in the direction of approaching the driven pressure wheel 7051. The pressing assembly 706 includes a guide rod 7061. The guide rod 7061 is arranged along the moving direction of the moving plate 7054. One end of the guide rod 7061 is connected to the fixing plate 7052. An extrusion plate 7062 is arranged on the moving plate 7054. The other end of the guide rod 7061 penetrates through the extrusion plate 7062. A spring 7063 is sleeved on the guide rod 7061 after penetrating through the extrusion plate 7062. A nut 7064 that abuts against the spring 7063 is screwed into the other end of the guide rod 7061. Under the elastic force of the spring 7063, the moving plate 7054 is pushed to move in the direction of approaching the driven pressure wheel 7051, so that the driving pressure wheel 7053 approaches the driven pressure wheel 7051, and then the sampling tube 8 is pressed tightly. And the spring 7063 has a large compression stroke and is also adjustable, ensuring that the sampling tube 8 is pressed and preventing the sampling tube 8 from sliding down and falling, and at the same time preventing the sampling tube 8 from being damaged by extrusion.

[0051] Guide seats 707 for guiding the lifting of the sampling tube 8 are arranged above and below the two driven pressure wheels 7051. The two guide seats 707 are fixedly connected to the fixing plate 7052. Through the arrangement of the guide seats 707, the lifting of the sampling tube 8 is guided to prevent the sampling tube 8 from running off and deviating from the sampling position.

[0052] In this application, the tower arm 2 is rotatably arranged on the column 1, realizing a large-range movement in the same horizontal plane. The sampling mechanism 7 is movably arranged on the tower arm 2, that is, it moves along the tower arm 2. Cooperating with the rotation of the tower arm 2, the sampling tube 8 can be moved to any position in the same horizontal plane. Through the lifting arrangement of the sampling tube 8, samples can be extracted within different height ranges. The sampling machine of this application is simple to use, has a large sampling range, accurate position, and high sampling efficiency. The grain is transported to the sampling machine and the sampling machine is used to sample and detect the grain, realizing the overall quality detection of the grain.

[0053] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "top", "vertical", "one end", "the other end", "top end", "both ends", "both sides", "inner side", "above", "below", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In the description of the present utility model, unless otherwise specified and defined, it should be noted that the term "connection" should be understood in a broad sense. For example, it can be a mechanical connection or an electrical connection, or it can be the communication inside two elements. It can be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms can be understood according to specific circumstances.

[0054] The above are only the preferred embodiments of the utility model and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A fixed sampling machine, characterized in that: It includes a column and a tower arm on the top of the column, and the tower arm is driven by a power component A to rotate and is arranged on the column; The tower arm is provided with a sampling mechanism, which includes a sampling seat and a power component B for driving the sampling seat to move on the tower arm. A position sensor is provided on the tower arm corresponding to the movement limit position of the sampling seat. The sampling seat is provided with a power component C for driving the sampling tube to rise and fall. The power assembly C includes a power element C. An active pressing wheel and a driven pressing wheel are arranged at intervals on the sample insertion seat. The power element C drives the active pressing wheel to rotate, and the sample insertion tube is squeezed and arranged between the active pressing wheel and the driven pressing wheel. The power element C and the active pressure wheel are both arranged on a movable plate, and the movable plate is arranged on the sampling seat to move in a direction close to or away from the driven pressure wheel. A clamping assembly is arranged between the movable plate and the sampling seat, and the clamping assembly is used to move the movable plate toward the driven pressure wheel.

2. A fixed sampling machine according to claim 1, characterized in that: The clamping assembly includes a guide rod, which is arranged along the moving direction of the movable plate. One end of the guide rod is connected to the sampling seat. An extrusion plate is provided on the movable plate. The other end of the guide rod passes through the extrusion plate. A spring is sleeved on the guide rod after passing through the extrusion plate. A nut that resists the spring is screwed into the other end of the guide rod.

3. A fixed sampling machine according to claim 1, characterized in that: The driven pressure wheel is arranged on a fixed plate, and the fixed plate is arranged on a sampling seat.

4. A fixed sampling machine according to claim 1, characterized in that: The sampling seat is provided with a guide seat for guiding the lifting and lowering of the sampling tube.

5. A fixed type sampling machine according to claim 1, characterized in that: The power assembly B includes a power element B arranged on the tower arm, a chain is arranged along the length direction of the tower arm, both ends of the chain are supported on the tower arm through sprockets, the power element B drives any sprocket to rotate, and the chain is connected to the sampling seat.

6. A fixed sampling machine according to claim 1, characterized in that: A movable groove is provided in the length direction of the tower arm, and movable wheel assemblies are provided on both sides of the sampling seat. The movable wheel assembly includes a wheel plate connected to the sampling seat, and two movable wheels are provided on the wheel plate. The wheel plate is located in the movable groove, and the two movable wheels clamp the tower arm inside the movable groove up and down.

7. A fixed type sampling machine according to claim 1, characterized in that: The power assembly A comprises a power element A arranged on the tower arm, a rotating gear ring is fixedly arranged on the top of the column, and the power element A drives the rotating gear meshing with the rotating gear ring to rotate.

8. A fixed type sampling machine according to claim 1, characterized in that: The tower arm is provided with a tower cap column, the tower cap column is connected to two ends of the tower arm through a cable, and the tower arm is provided with a counterweight block.

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