Gantry-type multi-point grain purchasing intelligent sampling device

Abstract

The present invention discloses a gantry type multi-point grain purchasing intelligent sampling device, comprising a sampling mechanism and a gantry body for driving the sampling mechanism to do planar motion, the sampling mechanism comprising a bracket for connecting the gantry body and the sampling mechanism, a material airflow conveyor connected in sequence, a sample conveying hose, a sampling rod and a vertical drive device and a central control device, the straight drive device comprising a fixed plate connected to the front end of the bracket, an adjustment frame arranged at the side end of the bracket, a passive groove wheel rotatably connected to the adjustment frame, an active groove wheel rotatably connected to the fixed plate, and a groove wheel driving device arranged on the fixed plate for driving the active groove wheel to rotate, the active groove wheel and the passive groove wheel are arranged relatively and a space for accommodating the sampling rod is formed between the two. The present invention overcomes the problem of poor stability of the slender rod structure of the sampling rod, effectively avoids the phenomenon of bending or even breaking of the sampling rod, and the fixed point control makes it easy to accurately insert the sampling rod into the grain pile.

Description

Technical Field

[0001] The invention relates to the field of grain sampling equipment, and in particular to a gantry-type multi-point grain purchasing intelligent sampling device. Background Art

[0002] Although there are many types of sampling equipment on the market, there are only two types: one is a small, simple manual handheld sampler, and the other is a medium or large electric or hydraulic mechanical sampler operated manually. These samplers cannot be separated from manual on-site operation, and the personnel responsible for sampling will inevitably come into direct or indirect contact with the materials, and even with the direct beneficiaries. In this way, some human factors may occur, resulting in a large deviation between the samples sent to the inspection and testing personnel and the actual goods, making the inspection and testing report data not objective and fair, and the user unit purchases raw materials that are far from the actual demand, thereby causing irreparable losses to the demanding enterprise unit.

[0003] Secondly, the existing large electric or hydraulic mechanical samplers are driven by a driving device to drive the large frame to move vertically up and down so that the slender sampling rod is mixed into the truck bucket or grain bin. Since the sampling rod is equivalent to the slender rod, the structural stability is poor, and the sampling rod is bent or even broken during use; at the same time, the large frame is large in size, heavy in mass, and has a large inertia of up and down movement, which is not easy to control at a fixed point, often resulting in the sampling rod being inserted into the grain pile at an inaccurate depth. Therefore, it is necessary to improve the existing technology to solve the above technical problems. Summary of the invention

[0004] In order to solve the above technical problems, the present invention provides a gantry-type multi-point grain purchasing intelligent sampling device, which is specifically implemented by the following technical solutions:

[0005] The present invention discloses a gantry-type multi-point grain purchasing intelligent sampling device, comprising a sampling mechanism and a gantry body for driving the sampling mechanism to perform planar motion, wherein the sampling mechanism comprises a bracket for connecting the gantry body and the sampling mechanism, a material airflow conveyor connected in sequence, a sample conveying hose, a sampling rod and a vertical drive device and a central control device, wherein the direct drive device comprises a fixed plate connected to the front end of the bracket, an adjustment frame arranged at the side end of the bracket, a passive groove wheel rotatably connected to the adjustment frame, an active groove wheel rotatably connected to the fixed plate, and a groove wheel driving device arranged on the fixed plate for driving the active groove wheel to rotate, wherein the active groove wheel and the passive groove wheel are arranged opposite to each other and a space for accommodating the sampling rod is formed therebetween.

[0006] The preferred solution is that the passive sheave includes a passive sheave I and a passive sheave II which are arranged in parallel up and down, the active sheave includes an active sheave I and an active sheave II, the sheave driving device includes an upper gear and a lower gear which are respectively connected to the active sheave I and the active sheave II, and a rotating driving element which is fixedly connected to a fixed plate, the rotating driving element is connected to a gear shaft, the gear shaft is provided with a driving gear, and the driving gear is respectively meshed with the upper gear and the lower gear.

[0007] According to a preferred embodiment, the adjustment frame includes a sheave frame, an adjustment rod connected to one side of the bracket, an elastic element arranged between the adjustment frame and the adjustment rod, and a connecting rod for connecting the sheave frame and the bracket.

[0008] According to a preferred solution, a guide column is provided at the front end of the groove wheel frame, a slide groove cooperating with the guide column is provided on the fixed plate, and the guide column is slidably connected with the fixed plate in a single degree of freedom.

[0009] Preferably, rubber sleeves are provided on the outer circumferences of the active sheave and the passive sheave.

[0010] According to a preferred embodiment, the gantry body includes a frame, a crossbeam and a longitudinal drive device for driving the crossbeam to move on the frame, the bracket is slidably connected to the crossbeam, and the gantry body also includes a transverse drive device for driving the bracket to move along the length direction of the crossbeam.

[0011] According to a preferred embodiment, the longitudinal driving device comprises a roller group arranged at the end of the crossbeam, a rack I arranged on a frame, a gear I meshing with the rack I and a control motor I driving the gear I, and the control motor I is fixed to the crossbeam.

[0012] According to the preferred embodiment, the lateral drive device includes a guide rail arranged at the upper end of the beam, a rack II, a gear II connected to the rack II, a control motor II connected to the upper end of the bracket, and a roller connected to the rear end of the bracket and cooperating with the guide rail, and the gear II is connected to the control motor II.

[0013] According to a preferred solution, the frame includes upright posts and an I-shaped frame arranged parallel to the upright posts, wherein the I-shaped frame is formed by splicing a plurality of I-shaped steels.

[0014] According to a preferred solution, support columns for auxiliary support are provided at the joints of the I-beams, and fixed struts are provided between the support columns or between the support columns and the columns.

[0015] Beneficial effects of the present invention: the sampling rod of the present invention is clamped between the active groove wheel and the passive groove wheel, and the active groove wheel rotates to generate downward or upward friction force to continuously and gradually insert into the grain pile, while the sampling rod on the upper part of the active groove wheel is not subjected to force, thus overcoming the problem of poor stability of the slender rod structure of the sampling rod, and effectively avoiding the phenomenon of bending or even breaking of the sampling rod. Furthermore, the sampling rod of the present invention is inserted into the grain pile by a vertical drive device driving the sampling rod itself to move up and down, and there is no need to drive a large frame with large volume, heavy mass and large inertia to move up and down, and its fixed-point control makes it easy to accurately insert the sampling rod into the grain pile. Other beneficial effects of the present invention will be further described in conjunction with the specific embodiments below. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments:

[0017] Figure 1 It is a schematic diagram of the structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the connection structure between the beam and the bracket;

[0019] Figure 3 It is a structural schematic diagram of a vertical drive device;

[0020] Figure 4 is a schematic diagram of the fixed plate structure;

[0021] Figure 5 Schematic diagram of the connection between the sample delivery hose and the sampling rod. DETAILED DESCRIPTION

[0022] As shown in the figure: a gantry-type multi-point grain purchasing intelligent sampling device described in the present invention includes a sampling mechanism 2 and a gantry body 1 for driving the sampling mechanism 2 to make planar motion, the sampling mechanism 2 includes a bracket 3 for connecting the gantry body 1 and the sampling mechanism 2, a material airflow conveyor 8 connected in sequence, a sample conveying hose 4, a sampling rod 5 and a vertical drive device 6 and a central control device 7, the direct drive device includes a fixed plate 61 connected to the front end of the bracket 3, an adjustment frame 62 arranged at the side end of the bracket 3, a passive groove wheel rotatably connected to the adjustment frame 62, an active groove wheel rotatably connected to the fixed plate 61 and a groove wheel driving device 63 arranged on the fixed plate 61 for driving the active groove wheel to rotate, the active groove wheel and the passive groove wheel are arranged opposite to each other and a space for accommodating the sampling rod 5 is formed between the two.

[0023] When in use, in the initial state, the sampling rod 5 is placed between the active groove wheel and the passive groove wheel, and there is a certain pre-tightening force between the three through the extrusion of the adjustment frame 62. When the gantry body 1 is driven to stop above the position to be detected in the grain pile, the groove wheel driving device 63 drives the active groove wheel to rotate. Since there is a certain pre-tightening force between the active groove wheel, the passive groove wheel and the sampling rod 5, there is friction between the three when the active groove wheel rotates. Under the action of the friction force, the active groove wheel drives the sampling rod 5 to move downward, and the rotation of the passive groove wheel has a leading and supporting effect on the sampling rod 5, making the sampling rod 5 as vertical as possible. In the above process, the sampling rod 5 will be continuously and gradually inserted into the grain pile, and it is not easy to bend and deform, and it will not be broken. Furthermore, since the sampling rod 5 enters the grain pile continuously and gradually, and after entering the grain pile, it is inserted through the grain pile to guide the sampling rod 5, and at the same time, the sampling rod 5 itself has a small mass and a small inertia, the groove wheel driving device 63 can increase the speed of the active groove wheel to accelerate the movement speed of the sampling rod 5, that is, the sampling rod 5 will not bend or deform, nor will it cause inaccurate positioning due to "overstepping" caused by large inertia after moving to the point.

[0024] In this embodiment, the passive sheave includes a passive sheave Ⅰ65 and a passive sheave Ⅱ66 which are arranged in parallel up and down, the active sheave includes an active sheave Ⅰ67 and an active sheave Ⅱ68, the sheave driving device 63 includes an upper gear 631 and a lower gear 632 which are respectively connected to the active sheave Ⅰ67 and the active sheave Ⅱ68, and a rotating driving element 633 which is fixedly connected to the fixed plate 61, the rotating driving element 633 is connected to a gear shaft, and a driving gear 634 is provided on the gear shaft, and the driving gear 634 is respectively meshed with the upper gear 631 and the lower gear 632. The active groove wheel and the passive groove wheel are both provided in pairs, which greatly enhances the leading and guiding effect in the length direction of the sampling rod 5, is conducive to overcoming the deformation of the sampling rod 5, and is also conducive to maintaining its own structure, ensuring that the sampling rod 5 can smoothly and vertically enter the grain pile at the moment of contact with the grain pile, avoiding the skewness of the sampling rod 5 when entering the grain pile, and reducing the unnecessary resistance of the sampling rod 5. Secondly, the active groove wheel I 67 and the active groove wheel II 68 are provided to realize the synchronous movement with the upper gear 631 and the lower gear 632 respectively through the active gear 634, and the friction force of the active groove wheel on the sampling rod 5 can be increased when rotating under the drive of the rotating drive element 633, providing the sampling rod 5 with sufficient power for downward movement.

[0025] In this embodiment, the adjustment frame 62 includes a sheave frame 621, an adjustment rod 622 connected to one side of the bracket 3, an elastic element 623 provided between the adjustment frame 62 and the adjustment rod 622, and a connecting rod 624 for connecting the sheave frame 621 and the bracket 3. A guide column 625 is provided at the front end of the sheave frame 621, and a slide groove 626 cooperating with the guide column 625 is provided on the fixing plate 61, and the guide column 625 is connected to the fixing plate 61 in a single degree of freedom sliding manner. The guide column 625 is connected to the fixing plate 61 in a single degree of freedom sliding manner, which ensures that the passive sheave I 65 and the passive sheave II 66 provided on the sheave frame 621 can contact the sampling rod 5 in parallel and at the same time no matter how the elastic element 623 is adjusted, and ensures that the passive sheave I 65 and the passive sheave II 66 effectively guide and lead the sampling rod 5. Furthermore, by adjusting the elastic element 623, the squeezing force of the active groove wheel and the passive groove wheel on the sampling rod 5 can be adjusted, and then the magnitude of the friction force can be adjusted to adjust the force driving the sampling rod 5 to move downward.

[0026] In this embodiment, the gantry body 1 includes a frame 101, a crossbeam 102, and a longitudinal driving device 103 for driving the crossbeam 102 to move on the frame 101. The bracket 3 is slidably connected to the crossbeam 102. The gantry body 1 also includes a transverse driving device 104 for driving the bracket 3 to move along the length direction of the crossbeam 102. Further, the longitudinal driving device 103 is provided with a roller group 1031 at the end of the crossbeam 102, a rack I 1032 provided on the frame 101, a gear I 1033 meshing with the rack I 1032, and a control motor I 1034 driving the gear I 1033, and the control motor I 1034 is fixed to the crossbeam 102. The lateral drive device 104 includes a guide rail 1041, a rack II 1042, a gear II 1043 connected to the rack II 1042, a control motor II 1044 connected to the upper end of the bracket 3, and a roller 1045 connected to the rear end of the bracket 3 and matched with the guide rail 1041. The gear II 1043 is connected to the control motor II 1044. Preferably, the control motor I 1034 and the control motor II 1044 are preferably stepper motors or servo motors, so that the motion displacement can be obtained by measuring the number of revolutions of the stepper motor or servo motor and the gear structure modulus and transmission ratio, and then accurate positioning can be obtained.

[0027] In this embodiment, the frame 101 includes columns 1011 and an I-shaped frame arranged parallel to the columns 1011. The I-shaped frame is formed by splicing a plurality of I-shaped steels 1012. The splicing positions of the I-shaped steels 1012 are provided with support columns 1013 for auxiliary support. Fixed struts 1014 are provided between the support columns 1013 or between the support columns 1013 and the columns 1011. Therefore, the upper end of the I-shaped steel 1012 can serve as a track for the roller, and the lower end can be installed with a rack I 1032. The I-shaped steel 1012 is a standard part, so the frame 101 of the present invention has a simplified structure, simple manufacturing, good interchangeability, easy assembly, low processing and manufacturing cost, and good economy.

[0028] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solution of the present invention can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the present invention, which should be included in the scope of the claims of the present invention.

Claims

1. A gantry-type multi-point grain purchasing intelligent sampling device, comprising a sampling mechanism and a gantry body for driving the sampling mechanism to make planar motion, characterized in that: The sampling mechanism includes a bracket for connecting the gantry body and the sampling mechanism, a material airflow conveyor connected in sequence, a sample conveying hose, a sampling rod and a vertical drive device and a central control device. The vertical drive device includes a fixed plate connected to the front end of the bracket, an adjustment frame arranged at the side end of the bracket, a passive groove wheel rotatably connected to the adjustment frame, an active groove wheel rotatably connected to the fixed plate, and a groove wheel driving device arranged on the fixed plate for driving the active groove wheel to rotate. The active groove wheel and the passive groove wheel are arranged opposite to each other and a space for accommodating the sampling rod is formed between the two. The passive groove wheel includes a passive groove wheel I and a passive groove wheel II arranged in parallel up and down. The active groove wheel includes an active groove wheel Groove wheel I and active groove wheel II, the groove wheel driving device includes an upper gear and a lower gear respectively connected to the active groove wheel I and the active groove wheel II, and a rotating driving element fixedly connected to the fixed plate, the rotating driving element is connected to a gear shaft, the gear shaft is provided with a driving gear, and the driving gear is respectively engaged with the upper gear and the lower gear; the adjusting frame includes a groove frame, an adjusting rod connected to one side of the bracket, an elastic element arranged between the adjusting frame and the adjusting rod, and a connecting rod for connecting the groove wheel frame and the bracket; a guide column is provided at the front end of the groove wheel frame, and a sliding groove cooperating with the guide column is provided on the fixed plate, and the guide column is connected to the fixed plate in a single degree of freedom sliding manner.

2. The gantry-type multi-point grain purchasing intelligent sampling device according to claim 1 is characterized in that: The outer circumferences of the active sheave and the passive sheave are provided with rubber sleeves.

3. The gantry-type multi-point grain purchasing intelligent sampling device according to claim 1 is characterized in that: The gantry body includes a frame, a crossbeam and a longitudinal driving device for driving the crossbeam to move on the frame, the bracket is slidably connected to the crossbeam, and the gantry body also includes a transverse driving device for driving the bracket to move along the length direction of the crossbeam.

4. The gantry-type multi-point grain purchasing intelligent sampling device according to claim 3 is characterized in that: The longitudinal driving device comprises a roller group arranged at the end of the crossbeam, a rack I arranged on a frame, a gear I meshing with the rack I and a control motor I driving the gear I, and the control motor I is fixed to the crossbeam.

5. The gantry-type multi-point grain purchasing intelligent sampling device according to claim 3 is characterized in that: The transverse driving device includes a guide rail arranged at the upper end of the beam, a rack II, a gear II connected to the rack II, a control motor II connected to the upper end of the bracket, and a roller connected to the rear end of the bracket and matched with the guide rail, and the gear II is connected to the control motor II.

6. The gantry-type multi-point grain purchasing intelligent sampling device according to claim 3 is characterized in that: The frame body comprises upright posts and an I-shaped frame arranged parallel to the upright posts, and the I-shaped frame is formed by splicing a plurality of I-shaped steels.

7. The gantry-type multi-point grain purchasing intelligent sampling device according to claim 6 is characterized in that: The I-shaped steel joints are provided with support columns for auxiliary support, and fixed support rods are provided between the support columns or between the support columns and the columns.

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