Belt sampling machine

Abstract

The invention relates to the technical field of sampling, and discloses a belt sampling machine which comprises a supporting frame and a belt conveyor, an electric telescopic rod is fixedly connected to the upper surface of the supporting frame, one end of a telescopic part of the electric telescopic rod penetrates through the supporting frame to be fixedly connected with a connecting block, and one side of the connecting block is fixedly connected with a first air cylinder; a connecting frame is fixedly connected to one end of a pneumatic rod of the first air cylinder, a sampling box is arranged in the connecting frame, and fixing plates are fixedly connected to the outer walls of the two sides of the sampling box. According to the belt sampling machine, the sampling mode can be changed, objects on the upper middle edge of the belt can be sampled, friction force between the sampling box and the belt is reduced, so that abrasion to the belt is reduced, the service life of the belt sampling machine is prolonged, funds are saved, material boxes with different depths can be placed for collecting samples, and the sampling efficiency is improved. The use effect of the belt sampling machine is improved, the material box can be prevented from moving on the carrier plate, and the stability of placing the material box is improved.

Description

Technical Field

[0001] The invention relates to the technical field of sampling, in particular to a belt sampler. Background Art

[0002] Belt conveyor: It is mainly composed of a frame, conveyor belt, belt roller, tensioning device, transmission device, etc. It is used to transport loose materials or pieced items. During the transportation process, in order to ensure that the items meet the standards, the items need to be sampled and tested.

[0003] After searching, a Chinese patent with announcement number CN206974748U discloses a belt sampler, including a frame, a feeding device is arranged on the frame, a sampling mechanism and a collecting device are arranged at both ends of the feeding device, the feeding device is a belt conveyor, and the collected coal powder can be evenly distributed in a collecting bucket, etc. However, there are still the following defects: the existing device adopts a pendulum sampling method, and the sampling amount of the middle edge of the belt is small, and the belt wear will be aggravated. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the present invention provides a belt sampler, which is mainly used to solve the problem that the existing device adopts a pendulum-type sampling method, which may aggravate the belt wear.

[0006] (II) Technical solution

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] A belt sampling machine comprises a support frame and a belt conveyor, wherein an electric telescopic rod is fixedly connected to the upper surface of the support frame, one end of the telescopic portion of the electric telescopic rod passes through the support frame and is fixedly connected to a connecting block, one side of the connecting block is fixedly connected to a first cylinder, one end of the pneumatic rod of the first cylinder is fixedly connected to the connecting frame, a sampling box is arranged in the connecting frame, both outer walls of the sampling box are fixedly connected to a fixing plate, one side of the fixing plate is provided with a slide groove, a convex block is arranged in the slide groove, and the convex block is rotatably connected to the connecting frame, a second cylinder is fixedly connected to the top inner wall of the sampling box, one end of the pneumatic rod of the second cylinder passes through the sampling box and is fixedly connected to the connecting plate, one side of the connecting plate is fixedly connected to two connecting rods, and the connecting rod is fixed to the convex block, one side of the sampling box is fixedly connected to two fixing blocks at the bottom, a roller is rotatably connected between the two fixing blocks, a plurality of balls are arranged at the bottom of the sampling box, a third inclined surface is arranged at the edge of the bottom inner wall of the sampling box, a supporting plate is fixedly connected to the bottom of the support frame, and a material collecting component for collecting sampled items is arranged on the upper surface of the supporting plate.

[0009] Furthermore, the material receiving assembly includes a fixing frame, which is fixedly connected to the upper surface of the support plate, and a threaded hole is provided on the upper surface of the fixing frame, a threaded rod is threadedly connected to the threaded hole, a carrier plate is rotatably connected to the top of the threaded rod, a groove is provided on the upper surface of the carrier plate, a material box is clamped in the groove, a guide component is provided at the bottom of the carrier plate to enable the carrier plate to move vertically, and a material guide component is provided at the top of the support frame to allow the sample in the sampling box to enter the material box.

[0010] On the basis of the above-mentioned solution, the guiding components are two positioning posts, both of which are fixedly connected to the bottom of the carrier plate, and both of which pass through the fixing frame.

[0011] As a further solution of the present invention, the material guide assembly includes a material baffle plate, which is fixedly connected to the top of the support frame, and the bottom of the material baffle plate is fixedly connected to a material guide frame, and a avoidance opening is opened on one side of the material box, and the material guide frame extends into the material box through the avoidance opening.

[0012] Furthermore, a baffle is fixedly connected to a position above the sampling box in the connecting frame, and a first inclined surface and a second inclined surface are provided at the bottom of the baffle for resisting the sampling box.

[0013] Based on the above solution, the first inclined surface and the second inclined surface are distributed in a triangular shape.

[0014] As a further solution of the present invention, two first telescopic rods are fixedly connected to one side of the connecting block, and one end of the telescopic parts of the two first telescopic rods is fixed to the connecting frame.

[0015] Furthermore, a filter screen is provided inside the sampling box (15).

[0016] (III) Beneficial effects

[0017] Compared with the prior art, the present invention provides a belt sampling machine, which has the following beneficial effects:

[0018] 1. Through the coordinated use of the rotating sampling box, rollers and balls, when the sampling box contacts the belt conveyor, the sampling box rotates so that the opening of the sampling box fits with the belt conveyor, thereby sampling the items. By changing the sampling method, the items on the middle edge of the belt can be sampled. When the sampling box contacts the belt conveyor, the rollers and balls will reduce the friction between the sampling box and the belt, thereby reducing the wear on the belt, increasing the service life of the belt sampler and saving money.

[0019] 2. By setting the threaded rod and rotating the threaded rod, the threaded rod will drive the carrier plate to move, thereby changing the height of the carrier plate. It can be used to place material boxes of different depths to collect samples, thereby improving the use effect of the belt sampler.

[0020] 3. By setting the groove, the material box is placed in the groove on the carrier plate. The groove will limit the material box, thereby preventing the material box from moving on the carrier plate and improving the stability of the material box placement.

[0021] 4. Through the coordinated use of the first inclined surface and the second inclined surface, when the sampling box rotates, the baffle plate will resist and limit the sampling box in two different rotation directions through the first inclined surface and the second inclined surface, thereby preventing the sampling box from rotating too much. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the three-dimensional structure of a belt sampling machine proposed by the present invention;

[0023] Figure 2 A schematic cross-sectional structure diagram of a fixing frame of a belt sampling machine proposed by the present invention;

[0024] Figure 3 This is a schematic cross-sectional structure diagram of a material baffle plate of a belt sampling machine proposed by the present invention;

[0025] Figure 4 This is a partial enlarged structural schematic diagram of a belt sampling machine proposed by the present invention;

[0026] Figure 5 This is a schematic diagram of the enlarged structure of part A of a belt sampling machine proposed by the present invention;

[0027] Figure 6 This is a schematic cross-sectional structural diagram of a sampling box of a belt sampler proposed by the present invention.

[0028] In the figure: 1. electric telescopic rod; 2. support frame; 3. belt conveyor; 4. support plate; 5. fixed frame; 6. carrier plate; 7. material box; 8. material guide frame; 9. material baffle plate; 10. groove; 11. positioning column; 12. threaded rod; 13. connecting block; 14. first telescopic rod; 15. sampling box; 16. third inclined plane; 17. connecting frame; 18. first cylinder; 19. bump; 20. connecting rod; 21. connecting plate; 22. fixed plate; 23. slide groove; 24. roller; 25. fixed block; 26. ball; 27. second cylinder; 28. first inclined plane; 29. ​​second inclined plane; 30. baffle plate. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Reference Figure 1-Figure 6 A belt sampling machine includes a support frame 2 and a belt conveyor 3. An electric telescopic rod 1 is fixed to the upper surface of the support frame 2 by bolts. One end of the telescopic portion of the electric telescopic rod 1 passes through the support frame 2 and is fixed to a connecting block 13 by bolts. A first cylinder 18 is fixed to one side of the connecting block 13 by bolts. One end of the pneumatic rod of the first cylinder 18 is fixed to a connecting frame 17 by bolts. A sampling box 15 is arranged in the connecting frame 17. Both sides of the outer wall of the sampling box 15 are welded with a fixing plate 22. A slide groove 23 is opened on one side of the fixing plate 22. A protrusion 19 is arranged in the slide groove 23, and the protrusion 19 is rotatably connected to the connecting frame 17, and a plurality of balls 26 are provided at the bottom of the sampling box 15. When the electric telescopic rod 1 is started to extend, the electric telescopic rod 1 will push the connecting block 13 to move downward, and the connecting block 13 will drive the connecting frame 17 to move through the first cylinder 18, and the connecting frame 17 will drive the sampling box 15 to move downward through the protrusion 19. When the sampling box 15 moves to contact the conveying belt on the belt conveyor 3, it stops moving, and the conveying belt is in the state of conveying materials. At this time, the balls 26 on the sampling box 15 will reduce the friction between the conveying belt and the sampling box 15;

[0031] A second cylinder 27 is fixed to the top inner wall of the sampling box 15 by bolts, and one end of the pneumatic rod of the second cylinder 27 passes through the sampling box 15 and is fixed to a connecting plate 21 by bolts. Two connecting rods 20 are welded to one side of the connecting plate 21, and the connecting rod 20 is fixed to the protrusion 19. Two fixed blocks 25 are welded to the bottom position of one side of the sampling box 15, and a roller 24 is rotatably connected between the two fixed blocks 25. A third inclined surface 16 is provided on the bottom inner wall of the sampling box 15 at the edge position, and a support plate 4 is welded to the bottom of the support frame 2, and a material receiving assembly for collecting sampled items is provided on the upper surface of the support plate 4. When the second cylinder 27 is started to extend, the second cylinder 27 will push the connecting plate 21. Since the connecting plate 21 is fixed to the protrusion 19 by the connecting rod 20, and the protrusion 19 rotates with the connecting frame 17, the sampling box 15 will move, so that the protrusion 1 9 moves in the slide 23. When the sampling box 15 moves to a certain position, the center of gravity of the sampling box 15 will rotate, so that the sampling box 15 rotates, so that the opening of the sampling box 15 faces downward, so that the roller 24 contacts the conveyor belt. At this time, under the action of the third inclined surface 16 on the sampling box 15, the conveyor belt will transport the objects into the sampling box 15 for sampling. At this time, the roller 24 will reduce the friction between the conveyor belt and the sampling box 15, thereby reducing the wear on the belt, improving the service life of the belt sampler, and saving money. A filter is provided in the sampling box 15, and the roller 24 can push the coal powder when it contacts the conveyor belt to spread it out, so that the sampling machine can ensure that large and small coal particles can be collected at one time, and after sampling, the coal particles of various sizes can be evenly divided by screening through the filter.

[0032] In the present invention, the material receiving assembly includes a fixing frame 5, which is fixed to the upper surface of the support plate 4 by bolts. A threaded hole is provided on the upper surface of the fixing frame 5, and a threaded rod 12 is threadedly connected in the threaded hole. The top of the threaded rod 12 is rotatably connected to a carrier plate 6. A groove 10 is provided on the upper surface of the carrier plate 6, and a material box 7 is clamped in the groove 10. A guide component is provided at the bottom of the carrier plate 6 to enable the carrier plate 6 to move vertically. The guide component is two positioning columns 11, and the two positioning columns 11 are welded to the bottom of the carrier plate 6. The two positioning columns 11 pass through the fixing frame 5. The top of the support frame 2 is provided with a groove 10 to enable the sample in the sampling box 15 to enter the material. The material guide assembly in the box 7 rotates the threaded rod 12, and the threaded rod 12 is engaged with the threaded hole to drive the carrier plate 6 to move up and down vertically under the action of the positioning column 11, so that the height of the carrier plate 6 can be changed to place material boxes 7 of different depths. The material guide assembly includes a baffle plate 9, which is fixed to the top of the support frame 2 by bolts, and a material guide frame 8 is welded to the bottom of the baffle plate 9. A avoidance opening is opened on one side of the material box 7, and the material guide frame 8 extends into the material box 7 through the avoidance opening. When the carrier plate 6 moves downward, the material guide frame 8 will be disengaged from the avoidance opening on the material box 7, so that it is convenient for the staff to unload the material box 7;

[0033] In particular, a baffle 30 is welded at a position above the sampling box 15 in the connecting frame 17, and a first inclined surface 28 and a second inclined surface 29 are provided at the bottom of the baffle 30 to resist the sampling box 15. The first inclined surface 28 and the second inclined surface 29 are distributed in a triangular shape. When the sampling box 15 swings, the baffle 30 will resist and limit the two directions of the swing of the sampling box 15 through the first inclined surface 28 and the second inclined surface 29, thereby preventing the sampling box 15 from swinging too much. Two first telescopic rods 14 are fixed to one side of the connecting block 13 by bolts, and one end of the telescopic part of the two first telescopic rods 14 is fixed to the connecting frame 17.

[0034] The working principle of this embodiment is as follows: when in use, the electric telescopic rod 1 is started to extend, the electric telescopic rod 1 will push the connecting block 13 to move downward, the connecting block 13 will drive the connecting frame 17 to move through the first cylinder 18, the connecting frame 17 will drive the sampling box 15 to move downward through the protrusion 19, when the sampling box 15 moves to contact the conveying belt on the belt conveyor 3 and stops moving, and the conveying belt is in the state of conveying materials, at this time, the ball 26 on the sampling box 15 will reduce the friction between the conveying belt and the sampling box 15, and then the second cylinder 27 is started to extend, the second cylinder 27 will push the connecting plate 21, and since the connecting plate 21 is fixed to the protrusion 19 by the connecting rod 20, and the protrusion 19 rotates with the connecting frame 17, the sampling box 15 will move, so that the protrusion 19 moves in the slide groove 23, when the sampling box 15 moves to a certain position, the center of gravity of the sampling box 15 will rotate, so that the sampling box 15 rotates, so that the opening of the sampling box 15 faces downward, so that the roller 24 and The conveyor belt contacts the sampling box 15. At this time, under the action of the third inclined surface 16 on the sampling box 15, the conveyor belt will transport the items into the sampling box 15, so as to carry out sampling. By changing the sampling method, the items on the middle edge of the belt can be sampled. At this time, the roller 24 will reduce the friction between the conveyor belt and the sampling box 15, thereby reducing the wear on the belt, improving the service life of the belt sampler, and saving money. After the sampling is completed, the second cylinder 27 is started to contract. At this time, the sampling box 15 will be restored, and the opening of the sampling box 15 will face upward, thereby preventing the items from slipping out of the sampling box 15. Subsequently, the electric telescopic rod 1 is contracted to move the sampling box 15 upward for resetting. Then, the first cylinder 18 is extended to push the connecting frame 17 to drive the sampling box 15 to move into the baffle plate 9, so that the sampling box 15 moves to the top of the guide rack 8. Subsequently, the second cylinder 27 is started again to extend, so that the opening of the sampling box 15 faces downward, so that the items in the sampling box 15 fall into the guide rack 8, and then slide through the guide rack 8 into the material box 7 for collection.

[0035] The electrical components mentioned in this article are all connected to an external main controller and 220V mains electricity, and the main controller can be a conventional known device for controlling a computer or the like.

[0036] In the description of this article, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection; it can be a mechanical connection, it can be an electrical connection, or it can be a direct connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the description herein, it should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A belt sampling machine, comprising a support frame (2) and a belt conveyor (3), characterized in that: The upper surface of the support frame (2) is fixedly connected to an electric telescopic rod (1), one end of the telescopic portion of the electric telescopic rod (1) passes through the support frame (2) and is fixedly connected to a connecting block (13), one side of the connecting block (13) is fixedly connected to a first cylinder (18), one end of the pneumatic rod of the first cylinder (18) is fixedly connected to a connecting frame (17), a sampling box (15) is arranged in the connecting frame (17), both sides of the outer wall of the sampling box (15) are fixedly connected to a fixing plate (22), one side of the fixing plate (22) is provided with a slide groove (23), a convex block (19) is arranged in the slide groove (23), and the convex block (19) is rotatably connected to the connecting frame (17), the top inner wall of the sampling box (15) is fixedly connected to a second cylinder (27), and the second One end of the pneumatic rod of the cylinder (27) passes through the sampling box (15) and is fixedly connected to a connecting plate (21). Two connecting rods (20) are fixedly connected to one side of the connecting plate (21), and the connecting rods (20) are fixed to the protrusion (19). Two fixed blocks (25) are fixedly connected to one side of the sampling box (15) at the bottom. A roller (24) is rotatably connected between the two fixed blocks (25). A plurality of balls (26) are provided at the bottom of the sampling box (15). A third inclined surface (16) is provided at the edge of the bottom inner wall of the sampling box (15). The bottom of the support frame (2) is fixedly connected to a support plate (4), and the upper surface of the support plate (4) is provided with a material collecting component for collecting sampled items.

2. A belt sampling machine according to claim 1, characterized in that: The material receiving assembly comprises a fixing frame (5), wherein the fixing frame (5) is fixedly connected to the upper surface of the support plate (4), a threaded hole is provided on the upper surface of the fixing frame (5), a threaded rod (12) is threadedly connected in the threaded hole, a carrier plate (6) is rotatably connected at the top of the threaded rod (12), a groove (10) is provided on the upper surface of the carrier plate (6), a material box (7) is clamped in the groove (10), a guide component is provided at the bottom of the carrier plate (6) to enable the carrier plate (6) to move vertically, and a material guide component is provided at the top of the support frame (2) to enable the sample in the sampling box (15) to enter the material box (7).

3. A belt sampling machine according to claim 2, characterized in that: The guiding components are two positioning columns (11), and the two positioning columns (11) are both fixedly connected to the bottom of the carrier plate (6), and the two positioning columns (11) pass through the fixing frame (5).

4. A belt sampling machine according to claim 2, characterized in that: The material guide assembly comprises a material baffle plate (9), the material baffle plate (9) is fixedly connected to the top of the support frame (2), the bottom of the material baffle plate (9) is fixedly connected to a material guide frame (8), one side of the material box (7) is provided with an avoidance opening, and the material guide frame (8) extends into the material feed box (7) through the avoidance opening.

5. A belt sampling machine according to claim 1, characterized in that: A baffle (30) is fixedly connected to a position above the sampling box (15) in the connecting frame (17), and a first inclined surface (28) and a second inclined surface (29) for blocking the sampling box (15) are provided at the bottom of the baffle (30).

6. A belt sampling machine according to claim 5, characterized in that: The first inclined surface (28) and the second inclined surface (29) are distributed in a triangular shape.

7. A belt sampling machine according to claim 1, characterized in that: Two first telescopic rods (14) are fixedly connected to one side of the connection block (13), and one end of the telescopic parts of the two first telescopic rods (14) is fixed to the connection frame (17).

8. A belt sampling machine according to claim 1, characterized in that: The sampling box (15) is provided with a filter screen.

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