Belt middle sampling machine based on conveyor

Abstract

The invention relates to the technical field of belt sampling, and discloses a belt middle sampling machine based on a conveyor, the belt middle sampling machine comprises a conveying frame and a conveying belt, the belt middle sampling machine further comprises a rack, a driving motor and a machine box are arranged on the two sides of the top of the rack respectively, and a sampling mechanism, a material stirring mechanism and an auxiliary discharging mechanism are arranged in the machine box respectively; according to the ore sampling device disclosed by the invention, through the arranged material stirring mechanism, in the sampling process, a material stirring plate swings, ore materials on a conveying belt are stirred into the bucket during swinging, and part of the ore materials can be shoveled in the downward operation process of the bucket, so that not only can more ore material samples be sampled, but also the situation that part of the ore materials are propped open by the bucket can be prevented; the ore sampling device is simple in structure and convenient to use, sampling operation can be smoothly carried out, through the arranged auxiliary discharging mechanism, ore materials can be vertically discharged, the scheme of material throwing of a bucket in the prior art can be improved, and the situation that the ore splashes to generate crushed materials is effectively prevented.

Description

Technical Field

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

[0002] Belt conveyor is a common material conveying method in mines, ore processing plants and other heavy industrial fields. The basic principle of the belt conveyor system is to use a continuous, driven conveyor belt to convey the ore from one end to the other through the action of rollers and drive devices. This method has been widely used in mining, metallurgy, building materials, coal, electricity and other industries;

[0003] A middle belt sampler is a device for taking samples of materials transported in the middle of the belt. This sampling device can automatically extend into the middle of the conveyor belt and cut materials during the operation of the belt conveyor. Existing sampling equipment uses a hollow structure bucket to scoop samples during sampling. When the edge of the bucket contacts the mineral material during sampling, if the particles of the mineral material are large, it is easy to push part of the mineral material away, resulting in less mineral material samples taken by the bucket, resulting in multiple samplings for further processing and analysis of the samples, which is not conducive to the smooth sampling operation, so it needs to be improved. Summary of the invention

[0004] The purpose of the present invention is to provide a conveyor belt middle sampling machine to solve the problems raised in the above background technology. To achieve the above purpose, the present invention provides the following technical solutions: including a conveyor frame and a conveyor belt, and also including a frame, the top two sides of the frame are respectively provided with a driving motor and a chassis, and the interior of the chassis is respectively provided with a sampling mechanism, a material-pickup mechanism and an auxiliary material-discharging mechanism;

[0005] The material-shifting mechanism comprises a toothed disc, the toothed disc is fixedly connected to the output shaft of the driving motor, a gear 1 is movably connected to the side surface of the toothed disc, a rotating disc is fixedly connected to the axis center of the gear 1, a guide head is fixedly connected to a side of the rotating disc relative to the gear 1, a lifting frame is arranged outside the guide head, the guide head is slidably connected to the lifting frame, a rack 1 is fixedly connected to the bottom surface of the lifting frame, a sliding rod is fixedly connected to the top surface of the lifting frame, the sliding rod is slidably connected to the inside of the chassis, a gear 2 is meshed with the side surface of the rack 1, a worm is fixedly connected to the axis center of the gear 2, and a worm wheel is meshed with the top of the worm;

[0006] The axis of the worm wheel is fixedly connected with a swing frame, the end of the swing frame is rotatably connected with a rotating rod, the end of the rotating rod away from the swing frame is fixedly connected with a material-pickup plate, and the end of the rotating rod close to the swing frame is provided with a connecting piece, and a spring rod is slidably connected to the connecting piece;

[0007] A guide groove 1 is provided on the inner wall of the chassis near the worm gear, and the spring rod is slidably installed in the guide groove 1. The depth of the bottom of the guide groove 1 is shallower than the depth of the top, so that the spring rod can extend outward to flip the material removal plate.

[0008] Preferably, the sampling mechanism includes a swing arm rotatably installed inside the chassis, the swing arm is fixedly connected to the output shaft of the driving motor, one end of the swing arm is fixedly connected to a bucket, and two mounting rods are symmetrically arranged on the swing arm, and one end of the two mounting rods away from the swing arm is fixedly connected to the bucket.

[0009] Preferably, a sealing plate is slidably connected to one side of the two mounting rods, and a spring is movably sleeved on the other side. A roller is rotatably connected to the side wall of the sealing plate, and the interior of the bucket is hollow.

[0010] Preferably, the auxiliary discharging mechanism includes a material baffle plate rotatably installed inside the chassis, a material discharge guide rail is arranged above the material baffle plate, a guide opening and a release opening are respectively opened at the bottom and top of the material discharge guide rail, a rack 2 is slidably connected to the material discharge guide rail, and a baffle is fixedly connected to one end of the rack 2 close to the material discharge guide rail.

[0011] Preferably, the surface of the rack two is meshed with gear three, and the gear three is rotatably connected to the outer wall of the chassis, the top of the gear three is meshed with rack three, and the rack three is slidably connected to the outer wall of the chassis, the bottom of the rack three is fixedly connected to a telescopic rod, and the bottom of the telescopic rod is fixedly connected to roller two, and the roller two passes through the outer wall of the chassis and is rotatably connected to the baffle plate.

[0012] Preferably, a guide groove 2 is provided on the outer wall of the chassis perpendicular to the lower side of the rack 3, a spring 2 is installed inside the guide groove 2, a push plate is slidably connected to one end of the guide groove 2, and the push plate abuts against the outer wall of the telescopic rod.

[0013] Preferably, the roller 1 is slidably connected to the discharge guide rail, and the side of the discharge guide rail close to the guide port is arc-shaped, so that the roller 1 slides upward along the discharge guide rail when passing through the guide port, which is beneficial to buffer the roller 1.

[0014] Preferably, a semi-circular disk is fixedly connected to the surface of the toothless disk, and a clamping plate is fixedly connected to the surface of the gear one. The semi-circular disk is in movably contact with the clamping plate, and its function is to limit the position of gear one when the toothless disk is not meshing with gear one.

[0015] Preferably, a material leakage port is provided on the material shifting plate, which serves to reduce the resistance of the material shifting plate during the material shifting process.

[0016] Preferably, a discharge port is provided at the bottom of the chassis near one end of the baffle plate.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. In the present invention, the material-digging mechanism is provided, and during the sampling process, the rotating rod is moved toward the swing arm through the transmission of the toothed disc. When the material-digging plate moves to the lower position of the chassis, the material-digging plate is swung according to the provided guide groove 1, and the ore material on the conveyor belt is diverted into the interior of the bucket during the swinging, and part of the ore material can be shoveled during the downward movement of the bucket, which can not only take more ore material samples, but also prevent part of the ore from being pushed away by the bucket, so as to facilitate the smooth sampling operation;

[0019] 2. In the present invention, by providing the material-diverting plate, the guide groove and the spring rod, after sampling, the material-diverting plate can block the opening on one side of the bucket and move synchronously with the direction of the bucket movement. When the opening of the bucket faces upward, the material-diverting plate swings and automatically separates from the bucket, thereby preventing the ore material inside the bucket from leaking out and reducing the occurrence of ore material splashing;

[0020] 3. In the present invention, by setting up the auxiliary discharging mechanism, after the sampling is completed, the roller 1 on the sealing plate enters the interior of the discharging guide rail from the guide port, so that the roller 1 moves along the track of the discharging guide rail. During the process, the sealing plate is continuously opened, and the ore material in the bucket automatically leaks out, so that the ore material can be dropped vertically, which can improve the bucket throwing scheme in the prior art and effectively prevent the occurrence of ore splashing and generating broken materials;

[0021] 4. In the present invention, by providing the baffle and the material baffle plate, while the ore material in the bucket is falling, the baffle is pushed upward by roller one, and the material baffle plate is gradually opened by driving rack two, so that the material baffle plate can match the corresponding inclination angle according to the opening distance of the sealing plate, so as to facilitate the falling of the sample in the bucket, and can automatically return to its original position after opening. After returning to its original position, the material baffle plate is in a vertical state, which can prevent excessive adhesion of some sticky ore materials. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0023] Figure 2 It is a schematic diagram of the top view structure of the present invention;

[0024] Figure 3 It is a schematic diagram of the cutaway structure of the chassis of the present invention;

[0025] Figure 4 For the present invention Figure 3 Schematic diagram of the enlarged structure of the A area in the middle;

[0026] Figure 5 It is a structural schematic diagram of the sampling mechanism of the present invention;

[0027] Figure 6 It is a structural schematic diagram of the material shifting mechanism of the present invention;

[0028] Figure 7 It is a schematic diagram of the installation structure of the semi-circular disk and the clamping plate of the present invention;

[0029] Figure 8 It is a partial structural schematic diagram of the material shifting mechanism of the present invention;

[0030] Fig. 9 It is a schematic diagram of the cross-section structure of the guide groove 1 of the present invention;

[0031] Fig.10 It is a schematic diagram of the installation structure of the chassis and the material diverting plate of the present invention;

[0032] Fig.11 For the present invention Fig.10 Schematic diagram of the enlarged structure of the middle B area;

[0033] Fig.12 It is a schematic diagram of the installation structure of the chassis, the material-diverting plate and the material-discharging port of the present invention;

[0034] Fig.13 For the present invention Fig.12 Schematic diagram of the enlarged structure of the C area in the middle.

[0035] In the figure: 1, conveyor frame; 2, conveyor belt; 3, frame; 4, drive motor; 5, chassis; 6, sampling mechanism; 601, swing arm; 602, bucket; 603, mounting rod; 604, sealing plate; 605, spring 1; 606, roller 1; 7, material dispensing mechanism; 701, toothed disc; 702, gear 1; 703, turntable; 704, guide head; 705, lifting frame; 706, rack 1; 707, slide bar; 708, gear 2; 709, worm; 710, worm wheel; 711, semicircular disc; 712 , card plate; 713, swing frame; 714, rotating rod; 715, material shifting plate; 716, connecting piece; 717, spring rod; 718, guide groove one; 719, material leakage port; 8, auxiliary material discharge mechanism; 801, material baffle plate; 802, material discharge guide rail; 803, guide port; 804, release port; 805, rack two; 806, baffle plate; 807, gear three; 808, rack three; 809, telescopic rod; 810, roller two; 811, guide groove two; 812, spring two; 813, push plate; 814, material discharge port. DETAILED DESCRIPTION

[0036] 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 technical personnel in this field without creative work are within the scope of protection of the present invention.

[0037] See also Figures 1 to 13 The present invention comprises a conveyor frame 1 and a conveyor belt 2, and also comprises a frame 3, a driving motor 4 and a chassis 5 are respectively arranged on both sides of the top of the frame 3, and a sampling mechanism 6, a material-discharging mechanism 7 and an auxiliary material-discharging mechanism 8 are respectively arranged inside the chassis 5;

[0038] Embodiment 1:

[0039] See also Figures 1 to 9 , this embodiment provides a technical solution: the sampling mechanism 6 includes a swing arm 601 rotatably mounted inside the chassis 5, the swing arm 601 is fixedly connected to the output shaft of the driving motor 4, one end of the swing arm 601 is fixedly connected to a bucket 602, two mounting rods 603 are symmetrically arranged on the swing arm 601, one end of the two mounting rods 603 away from the swing arm 601 is fixedly connected to the bucket 602, one side of the two mounting rods 603 is slidably connected to a sealing plate 604, and the other side is movably sleeved with a spring 605, a roller 606 is rotatably connected to the side wall of the sealing plate 604, and the interior of the bucket 602 is hollow;

[0040] The material-dispensing mechanism 7 comprises a toothed disc 701, which is fixedly connected to the output shaft of the driving motor 4, a gear 702 is movably connected to the side of the toothed disc 701, a rotating disc 703 is fixedly connected to the axis of the gear 702, a guide head 704 is fixedly connected to one side of the rotating disc 703 relative to the gear 702, a lifting frame 705 is arranged outside the guide head 704, the guide head 704 is slidably connected to the lifting frame 705, a rack 706 is fixedly connected to the bottom surface of the lifting frame 705, a sliding rod 707 is fixedly connected to the top surface of the lifting frame 705, the sliding rod 707 is slidably connected to the inside of the chassis 5, a gear 708 is meshed on the side of the rack 706, a worm 709 is fixedly connected to the axis of the gear 708, and a worm wheel 710 is meshed on the top of the worm 709;

[0041] A swing frame 713 is fixedly connected to the axis of the worm gear 710, and a rotating rod 714 is rotatably connected to the end of the swing frame 713. A material-pickup plate 715 is fixedly connected to the end of the rotating rod 714 away from the swing frame 713. A connecting piece 716 is provided at the end of the rotating rod 714 close to the swing frame 713, and a spring rod 717 is slidably connected to the connecting piece 716.

[0042] A guide groove 718 is provided on the inner wall of the chassis 5 near the worm gear 710, and a spring rod 717 is slidably installed in the guide groove 718. The depth of the bottom of the guide groove 718 is shallower than the depth of the top, so that the spring rod 717 extends outward to flip the material removal plate 715.

[0043] A semicircular disc 711 is fixedly connected to the surface of the toothless disc 701, and a clamping plate 712 is fixedly connected to the surface of the gear 1 702. The semicircular disc 711 and the clamping plate 712 are in active contact with each other, and their function is to limit the position of the gear 1 702 when the toothless disc 701 and the gear 1 702 are not meshed.

[0044] The material dispensing plate 715 is provided with a material leakage port 719, which is used to reduce the resistance of the material dispensing plate 715 during the material dispensing process;

[0045] In this embodiment, the spring rod is outputted from the inner part of the guide groove 718, so that the rotating rod 714 is pulled to rotate when the material-pickup plate 715 returns to its original position;

[0046] In this embodiment, one side of the material-diverting plate 715 is arranged in an arc shape, so as to prevent the surface of the conveyor belt 2 from being scratched by the sharp corners when the material-diverting plate 715 is rotated and swung downward;

[0047] Embodiment 2:

[0048] See also Figures 10 to 13 , this embodiment provides a technical solution: the auxiliary discharging mechanism 8 includes a baffle plate 801 rotatably mounted inside the chassis 5, a discharging guide rail 802 is arranged above the baffle plate 801, a guide opening 803 and a release opening 804 are respectively opened at the bottom and top of the discharging guide rail 802, a rack 805 is slidably connected to the discharging guide rail 802, and a baffle 806 is fixedly connected to one end of the rack 805 close to the discharging guide rail 802;

[0049] The surface of the rack 2 805 is meshed with a gear 3 807, which is rotatably connected to the outer wall of the chassis 5, the top of the gear 3 807 is meshed with a rack 3 808, which is slidably connected to the outer wall of the chassis 5, the bottom of the rack 3 808 is fixedly connected to a telescopic rod 809, and the bottom of the telescopic rod 809 is fixedly connected to a roller 2 810, which passes through the outer wall of the chassis 5 and is rotatably connected to the baffle plate 801;

[0050] A second guide groove 811 is provided on the outer wall of the chassis 5 perpendicular to the lower side of the rack 3 808. A second spring 812 is installed inside the second guide groove 811. A push plate 813 is slidably connected to one end of the second guide groove 811. The push plate 813 abuts against the outer wall of the telescopic rod 809.

[0051] The roller 606 is slidably connected to the discharge guide rail 802. The side of the discharge guide rail 802 close to the guide port 803 is arranged in an arc shape, so that the roller 606 slides upward along the discharge guide rail 802 when passing through the guide port 803, which is conducive to buffering the roller 606.

[0052] A discharge port 814 is provided at the bottom of the chassis 5 near one end of the baffle plate 801;

[0053] In this embodiment, the bottom of the discharge guide rail 802 is set to an arc shape, which can buffer the contact of the roller 606 and prevent the roller 606 from being stuck;

[0054] In this embodiment, according to the arrangement of the telescopic rod 809, during the rotation and opening process of the baffle plate 801, the output end of the telescopic rod 809 extends outward to adapt to the running track of the baffle plate 801;

[0055] The use method and advantages of the present invention: The middle belt sampling machine based on the conveyor has the following working process:

[0056] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 , Fig.11 , Fig.12 , Fig.13 As shown:

[0057] S1: In the initial state, the swing arm 601, the bucket 602 and the rotating rod 714 are in a relatively horizontal position. When the materials on the conveyor belt 2 are evenly distributed, the sampling operation can be carried out. The operator starts the driving motor 4. The output shaft of the driving motor 4 drives the swing arm 601 and the toothed disc 701 to rotate synchronously. The swing arm 601 drives the bucket 602 to move in the direction close to the conveyor belt 2. At the same time, the toothed disc 701 meshes with the gear 1 702 and drives the gear 1 702 to rotate. The rotating disc 703 fixedly connected to the gear 1 702 rotates synchronously, and the guide head 704 is driven to rotate during the process. During the rotation of the guide head 704, it slides back and forth on the lifting frame 705. During the half-circle rotation, The slide bar 707 on the top of the lifting frame 705 is driven to slide downward, and the rack 1 706 fixedly connected to the lifting frame 705 moves downward synchronously. During the process, the transmission gear 2 708 rotates and drives the worm 709 to rotate. The worm 709 drives the worm wheel 710 meshing with its top to rotate. According to the rotation direction of the worm wheel 710, the worm wheel 710 drives the swing frame 713 to move in the direction close to the conveyor belt 2. In the process of the swing frame 713 gradually rotating downward, when the spring rod slides inside the guide groove 1 718, according to the downward trajectory of the guide groove 1 718 that gradually changes from deep to shallow, the spring rod gradually extends outward when moving to a lower position. In the process, the rotating rod 714 is pushed, so that the rotating rod 71 4 rotates. In this stage, the contact position between the spring rod and the connecting piece 716 slides and slides toward the direction close to the rotating rod 714. When the spring rod moves to the bottom end of the guide groove 1 718, the material-dispensing plate 715 completes a rotation close to 90 degrees, and at the same time, the swing arm 601 rotates to a vertical state. The inner cavity of the bucket 602 is opposite to the material-dispensing plate 715. When the bucket 602 rotates on the conveyor belt 2, it contacts the ore material pile on the conveyor belt 2, and a part of the ore is dug into the bucket 602. In addition, the material-dispensing plate 715 swings during the downward movement, and a part of the ore is dispensed into the bucket 602, so that the interior of the bucket 602 is filled with more ore materials, and part of the ore is squeezed by the edge of the bucket 602. The ore material pushed away can be pushed into the interior of the bucket 602 by the material-pushing plate 715, and then the guide head 704 is driven upward by the rotating disk 703, and the rack 706, the sliding rod 707 and the lifting frame 705 are driven to move vertically upward in the process, and the gear, the worm 709 and the worm wheel 710 are driven to move in the opposite direction in the process, so that the material-pushing plate 715 is returned to its original position. In the process, the swing arm 601 rotates in the same direction as the rotating rod 714, and the material-pushing plate 715 is attached to the outer wall of the bucket 602, which can prevent the ore material inside the bucket 602 from leaking out. After a certain distance of movement, the spring rod slides deep into the guide groove 718, so that the material-pushing plate 715 is returned to its original position and gradually breaks away from the contact with the bucket 602.

[0058] S2: When the swing arm 601 and the bucket 602 complete sampling and gradually swing upward, the roller 1 606 enters the inside of the discharge guide rail 802 from the guide port 803 opened below the discharge guide rail 802, and rolls obliquely upward inside the discharge guide rail 802. When the swing arm 601 and the bucket 602 continue to swing upward, the sealing plate 604 slidably mounted on the bucket 602 is gradually pulled open according to the inclined discharge guide rail 802. During the process, the spring 1 605 is compressed, and the ore in the bucket 602 leaks downward. When the sealing plate 604 is synchronously opened, the roller 1 606 lifts the baffle 806 and drives the rack 2 808. 05 slides upward, rack 2 805 drives gear 3 807 to rotate, during which gear 3 807 drives rack 3 808 meshing therewith to rotate, and telescopic rod 809 fixedly connected below rack 3 808 pulls baffle plate 801 to swing through roller 2 810, so that baffle plate 801 catches the ore material leaking from the inside of bucket 602, and the ore material leaks out from discharge port 814 along the surface of baffle plate 801, so that baffle plate 801 can adapt to the corresponding inclination according to the opening amplitude of sealing plate 604 on bucket 602, so that all the ore material in bucket 602 falls from discharge port 814 and will not splash back onto conveyor belt 2;

[0059] S3: According to the set spring 2 812 and push plate 813, during the movement of the telescopic rod 809, the spring 2 812 is compressed by the push plate 813, and during the upward sliding of the roller 1 606 along the discharge guide rail 802, the sealing plate 604 is fully opened, and all the ore in the bucket 602 leaks out, and then the roller 1 606 is disengaged from the release port 804 opened at the top of the discharge guide rail 802, the spring 1 605 is opened to return the sealing plate 604, and the rack 2 805 loses its upward thrust. After that, spring 2 812 is reset, and during the process of pushing the push plate 813 back, the material blocking plate 801 is driven back through the telescopic rod 809. After all the ore materials have leaked out from the discharge port 814, the sampling operation is completed. Then the swing arm 601 continues to rotate half a circle and then resets. During the resetting process of the swing arm 601, the toothed disk 701 is disconnected from the meshing with the gear 1 702, so that the material removing plate 715 does not move, and during the process, the clamping plate 712 fits against the outer wall of the semi-circular disk 711 to prevent the gear 1 702 from rotating.

[0060] The above shows and describes the basic principles, main features and advantages of the present invention. Technical personnel in this industry should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not used to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A conveyor belt mid-section sampling machine, comprising a conveyor frame (1) and a conveyor belt (2), characterized in that: It also comprises a frame (3), wherein a driving motor (4) and a chassis (5) are respectively arranged on both sides of the top of the frame (3), and a sampling mechanism (6), a material discharging mechanism (7) and an auxiliary material discharging mechanism (8) are respectively arranged inside the chassis (5); The material shifting mechanism (7) comprises a toothed disc (701), the toothed disc (701) being fixedly connected to the output shaft of the driving motor (4), a gear 1 (702) being movably connected to the side of the toothed disc (701), a rotating disc (703) being fixedly connected to the axis of the gear 1 (702), a guide head (704) being fixedly connected to a side of the rotating disc (703) opposite to the gear 1 (702), a lifting frame (705) being arranged outside the guide head (704), and the guide head (704) being movable connected to the side of the gear 1 (702). 04) is slidably connected to a lifting frame (705), the bottom surface of the lifting frame (705) is fixedly connected to a rack 1 (706), the top surface of the lifting frame (705) is fixedly connected to a slide bar (707), the slide bar (707) is slidably connected to the inside of the chassis (5), the side surface of the rack 1 (706) is meshed with a gear 2 (708), the axis of the gear 2 (708) is fixedly connected to a worm (709), and the top of the worm (709) is meshed with a worm wheel (710); The axis of the worm wheel (710) is fixedly connected to a swing frame (713), the end of the swing frame (713) is rotatably connected to a rotating rod (714), one end of the rotating rod (714) away from the swing frame (713) is fixedly connected to a material-pickup plate (715), and one end of the rotating rod (714) close to the swing frame (713) is provided with a connecting piece (716), and a spring rod (717) is slidably connected to the connecting piece (716); A guide groove (718) is provided on the inner wall of the chassis (5) near the worm gear (710), and the spring rod (717) is slidably installed in the guide groove (718). The depth of the bottom of the guide groove (718) is shallower than the depth of the top, so that the spring rod (717) can extend outward to flip the material removal plate (715).

2. A conveyor belt middle sampling machine according to claim 1, characterized in that: The sampling mechanism (6) comprises a swing arm (601) rotatably mounted inside the chassis (5); the swing arm (601) is fixedly connected to the output shaft of the drive motor (4); one end of the swing arm (601) is fixedly connected to a bucket (602); two mounting rods (603) are symmetrically arranged on the swing arm (601); one end of the two mounting rods (603) away from the swing arm (601) is fixedly connected to the bucket (602).

3. A conveyor belt middle sampling machine according to claim 2, characterized in that: One side of the two mounting rods (603) is slidably connected to a sealing plate (604), and the other side is movably sleeved with a spring (605). A roller (606) is rotatably connected to the side wall of the sealing plate (604), and the interior of the bucket (602) is hollow.

4. The conveyor belt middle sampling machine according to claim 1 is characterized in that: The auxiliary discharging mechanism (8) comprises a baffle plate (801) rotatably mounted inside the chassis (5); a discharge guide rail (802) is arranged above the baffle plate (801); a guide opening (803) and a release opening (804) are respectively provided at the bottom and top of the discharge guide rail (802); a second rack (805) is slidably connected to the discharge guide rail (802); and a baffle (806) is fixedly connected to one end of the second rack (805) close to the discharge guide rail (802).

5. The conveyor belt middle sampling machine according to claim 4, characterized in that: The surface of the rack gear 2 (805) is meshed with a gear gear 3 (807), and the gear gear 3 (807) is rotatably connected to the outer wall of the chassis (5). The top of the gear gear 3 (807) is meshed with a rack gear 3 (808), and the rack gear 3 (808) is slidably connected to the outer wall of the chassis (5). The bottom of the rack gear 3 (808) is fixedly connected to a telescopic rod (809), and the bottom of the telescopic rod (809) is fixedly connected to a roller 2 (810), and the roller 2 (810) passes through the outer wall of the chassis (5) and is rotatably connected to the baffle plate (801).

6. The conveyor belt middle sampling machine according to claim 5, characterized in that: A guide groove 2 (811) is provided on the outer wall of the chassis (5) perpendicular to the lower side of the rack 3 (808), a spring 2 (812) is installed inside the guide groove 2 (811), and a push plate (813) is slidably connected to one end of the guide groove 2 (811), and the push plate (813) abuts against the outer wall of the telescopic rod (809).

7. The conveyor belt middle sampling machine according to claim 3 is characterized in that: The roller one (606) is slidably connected to the discharge guide rail (802), and the side of the discharge guide rail (802) close to the guide opening (803) is arranged in an arc shape, so that the roller one (606) slides upward along the discharge guide rail (802) when passing through the guide opening (803), which is conducive to buffering the roller one (606).

8. The conveyor belt middle sampling machine according to claim 1, characterized in that: A semicircular disk (711) is fixedly connected to the surface of the toothless disk (701), and a clamping plate (712) is fixedly connected to the surface of the gear one (702). The semicircular disk (711) and the clamping plate (712) are in movable contact with each other, and their function is to limit the position of the gear one (702) when the toothless disk (701) and the gear one (702) are not meshed.

9. The conveyor belt middle sampling machine according to claim 1, characterized in that: The material shifting plate (715) is provided with a material leakage opening (719) for reducing the resistance of the material shifting plate (715) during the material shifting process.

10. The conveyor belt middle sampling machine according to claim 4, characterized in that: A discharge port (814) is provided at the bottom of the chassis (5) near one end of the baffle plate (801).

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