Rotary dividing device for coal detection sample preparation

By introducing unblocking and cleaning components into the rotary slitting device, the hopper is automatically unblocked and cleaned using a motor-driven gear and scraper, thus solving the hopper blockage problem and improving the operating efficiency and reliability of the rotary slitting machine.

CN224471358UActive Publication Date: 2026-07-07CHINA INSPECTION & CERTIFICATION GRP QINHUANGDAO CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA INSPECTION & CERTIFICATION GRP QINHUANGDAO CO LTD
Filing Date
2025-06-18
Publication Date
2026-07-07

Smart Images

  • Figure CN224471358U_ABST
    Figure CN224471358U_ABST
Patent Text Reader

Abstract

The utility model relates to coal detection technical field, and disclose a kind of rotary division device for coal detection sample preparation, including installation panel, the top of installation panel is fixed with connecting frame, the top of installation panel is equipped with barrel by rotator, the inside of connecting frame is equipped with hopper, the surface of hopper and connecting frame is provided with dredging assembly and cleaning assembly;The dredging assembly includes: motor, motor is used to provide driving force;Gear one, gear one is used to drive gear two synchronous movement, this coal detection sample preparation is used rotary division device, by the dredging assembly of being set, when hopper is blocked, motor is started, gear one intermittent engagement drives L-shaped plate to move up and down, make long rod and protruding block synchronous movement to loosen animal feed, avoid jamming, card material and block, realize automatic dredging and do not need to stop. When gear two reciprocating rotation, rocker arm drives slider intermittent strike link plate, make hopper vibrate, improve dredging efficiency.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of coal testing technology, specifically a rotary reducing device for coal testing sample preparation. Background Technology

[0002] In the field of coal testing, accurate and efficient coal sample preparation is crucial for ensuring the accuracy and reliability of test results. Rotary fractionators, as a commonly used device, are primarily used in laboratories to prepare representative samples of coal or other particulate materials, providing a basis for subsequent analysis.

[0003] According to the published information on the leveling mechanism of a rotary splitting machine (Announcement No.: CN217845794U), the aforementioned application uses a hopper as the feeding component. The material falls from the hopper, and with the subsequent vibrator and vibrating trough, the material can flow smoothly into the material cylinder, thereby completing the material splitting preparation process. This design, to a certain extent, meets the basic feeding and splitting requirements.

[0004] However, in actual operation, when too much coal is fed into the hopper at once, blockage can easily occur due to the interaction between coal particles and the limitations of the hopper's structure. Once the hopper is blocked, the material cannot fall normally, affecting the operation of the entire rotary separator and preventing the separation process from proceeding smoothly. The usual solution is manual unblocking. Operators need to stop the machine and use tools to clear the blockage from the hopper, a method that is not only time-consuming and labor-intensive but also extremely inefficient. Utility Model Content

[0005] The purpose of this invention is to provide a rotary reducing device for coal testing and sample preparation, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a rotary reducing device for coal testing and sample preparation, comprising an installation panel, a connecting frame fixed to the top of the installation panel, a material cylinder installed on the top of the installation panel via a rotator, a hopper installed on the inner side of the connecting frame, and unblocking components and cleaning components provided on the surfaces of the hopper and the connecting frame.

[0007] The unblocking component includes:

[0008] An electric motor is used to provide driving force.

[0009] Gear 1 is used to drive gear 2 to move synchronously.

[0010] Gear 2 is used to cooperate with gear 1 to make the teeth reciprocate with the L-shaped plate.

[0011] Preferably, the motor is fixed to the outer surface of the connecting frame, a first gear is rotatably connected to the outer surface of the connecting frame, a second gear is rotatably connected to the outer surface of the connecting frame, an L-shaped plate is slidably connected to the outer surface of the connecting frame, a base plate is fixed to the outer surface of the connecting frame, teeth are fixed to the outer surface of the L-shaped plate, the teeth mesh with the second gear, the output shaft of the motor is fixed to the outer surface of the first gear, a long rod is fixed to the bottom of the end of the L-shaped plate away from the base plate, the long rod extends into the hopper, a protrusion is fixed to the outer surface of the long rod, and the surface of the second gear is provided with... A rotating rod passes through gear two and a connecting frame, and is fixedly connected to gear two. The rotating rod is rotatably connected to the connecting frame. A connecting plate is fixed to the outer surface of the hopper. A fixed block is fixed to the end of the rotating rod away from gear two. A groove is formed on the outer surface of the fixed block, and a slider is slidably connected to the inner wall of the groove. A spring is fixed to the outer surface of the slider, and the end of the spring away from the slider is fixed to the inner wall of the groove. When the motor is turned on, gear one intermittently meshes with gear two, and the L-shaped plate moves up and down reciprocally, thereby driving the long rod and the protrusion to move synchronously. During the movement of the protrusion, the material is loosened, effectively preventing material jamming, clogging, and other situations, achieving a clearing function without manual operation or interruption of the processing process. When gear two reciprocates, the rotating rod drives the fixed block and the slider to reciprocate. The slider intermittently strikes the connecting plate during its reciprocating rotation, causing the hopper to vibrate, further improving the clearing efficiency.

[0012] Preferably, the cleaning assembly includes a scraper rod rotatably connected to the inner wall of the hopper. A long rod passes through a ring, and a short rod is fixed to the inner side of the ring. An arc-shaped groove is formed on the outer surface of the long rod, and the short rod abuts against the inner wall of the arc-shaped groove. The end of the scraper rod away from the hopper is fixed to the outer surface of the ring. When the long rod reciprocates, the surface of the short rod abuts against the inner wall of the arc-shaped groove, causing the ring to drive the scraper rod to rotate reciprocally. At this time, the scraper rod scrapes the inner wall of the hopper, which can prevent material from adhering and clogging.

[0013] Preferably, a vibrator is installed on the top of the mounting panel, and a vibration groove is installed on the top of the vibrator. The vibration groove is located below the hopper to facilitate material feeding.

[0014] Preferably, a mounting plate is fixed to the right side of the connecting frame, a limiting plate is slidably connected to the inner side of the mounting plate, a locking button is provided on the outer surface of the limiting plate, and a through hole is provided at the connection between the mounting plate and the locking button to facilitate the leveling of coal, which can be adjusted.

[0015] Preferably, the second gear is configured as a half gear, and the surface of the first gear is equipped with four teeth, which are arranged in two groups in a circumferential array on the outer surface of the first gear. When the first gear rotates continuously, the second gear can engage with the teeth to perform reciprocating rotation.

[0016] Preferably, the end of the slider away from the spring is set in an arc shape, so that when it contacts the connecting plate, the slider can move into the groove.

[0017] Compared with the prior art, this utility model provides a rotary reducing device for coal testing and sample preparation, which has the following beneficial effects:

[0018] 1. This rotary reducing device for coal testing and sample preparation, through its unblocking components, activates the motor when the hopper becomes clogged. Gear one intermittently engages, driving the L-shaped plate up and down, causing the long rod and protrusion to move synchronously to loosen the material, preventing jamming, material accumulation, and blockage. This achieves automatic unblocking without requiring machine shutdown. When gear two reciprocates, the rotating rod drives the slider to intermittently strike the connecting plate, causing the hopper to vibrate and improving unblocking efficiency.

[0019] 2. This rotary reducing device for coal testing and sample preparation, through its cleaning components, uses a long rod that reciprocates while a short rod and an arc groove cause the ring to drive the scraper to rotate back and forth, scraping the inner wall of the hopper and preventing material adhesion and blockage. Attached Figure Description

[0020] Figure 1 This is a front view structural diagram of the present invention;

[0021] Figure 2 This is a side view of the structure of this utility model;

[0022] Figure 3 This is a top view schematic diagram of part of the structure of this utility model;

[0023] Figure 4 This is a cross-sectional view of some of the unblocking and cleaning components of this utility model;

[0024] Figure 5 This is a schematic diagram of the exploded structure of some of the unblocking and cleaning components of this utility model.

[0025] In the diagram: 1. Mounting panel; 2. Material cylinder; 3. Connecting frame; 4. Hopper; 5. Vibration groove; 6. Vibrator; 7. Mounting plate; 10. Locking button; 11. Limiting plate; 8. Unblocking component; 80. Motor; 81. Gear 1; 82. Gear 2; 83. L-shaped plate; 84. Tooth; 85. Base plate; 86. Rotating rod; 87. Long rod; 88. Protrusion; 89. Linking plate; 800. Fixing block; 801. Slide groove; 802. Sliding block; 803. Spring; 9. Cleaning component; 90. Scraper; 91. Ring; 92. Arc groove; 93. Short rod. Detailed Implementation

[0026] like Figures 1-5As shown, this utility model provides a technical solution: a rotary reducing device for coal testing and sample preparation, including a mounting panel 1, a connecting frame 3 fixed to the top of the mounting panel 1, a material cylinder 2 mounted on the top of the mounting panel 1 via a rotator, a hopper 4 mounted on the inner side of the connecting frame 3, and a clearing component 8 and a cleaning component 9 provided on the surfaces of the hopper 4 and the connecting frame 3; the clearing component 8 includes: a motor 80, a gear 1 81, a gear 2 82, an L-shaped plate 83, teeth 84, a base plate 85, a rotating rod 86, a long rod 87, a protrusion 88, a connecting plate 89, a fixing block 800, a sliding groove 801, a slider 802, and a spring 803.

[0027] Motor 80 is fixed to the outer surface of connecting frame 3. Gear 1 81 is rotatably connected to the outer surface of connecting frame 3, and gear 2 82 is rotatably connected to the outer surface of connecting frame 3. L-shaped plate 83 is slidably connected to the outer surface of connecting frame 3. Base plate 85 is fixed to the outer surface of connecting frame 3. Teeth 84 are fixed to the outer surface of L-shaped plate 83, and teeth 84 mesh with gear 2 82. The output shaft of motor 80 is fixed to the outer surface of gear 1 81. The bottom of the end of L-shaped plate 83 away from base plate 85 is fixed with... A long rod 87 extends into the hopper 4. A protrusion 88 is fixed to the outer surface of the long rod 87. A rotating rod 86 is provided on the surface of the gear 2 82, passing through the gear 2 82 and the connecting frame 3. The rotating rod 86 is fixedly connected to the gear 2 82 and rotatably connected to the connecting frame 3. A connecting plate 89 is fixed to the outer surface of the hopper 4. A fixing block 800 is fixed to the end of the rotating rod 86 away from the gear 2 82. A groove 801 is formed on the outer surface of the fixing block 800. A slider 802 is slidably connected to the inner wall, and a spring 803 is fixed to the outer surface of the slider 802. The end of the spring 803 away from the slider 802 is fixed to the inner wall of the slide groove 801. Gear 2 82 is set as a half gear, and four teeth are installed on the surface of gear 1 81. The four teeth are arranged in two groups in a circumferential array on the outer surface of gear 1 81. The end of the slider 802 away from the spring 803 is set as an arc. When the motor 80 is turned on, gear 1 81 intermittently meshes with gear 2 82 and teeth 84. The L-shaped plate 83 moves up and down back and forth, which drives the long rod 87 and the protrusion 88 to move synchronously. The protrusion 88 loosens the material, avoiding the phenomenon of material jamming, blockage, and clogging. Unblocking work can be carried out without manual unblocking and without stopping the processing work. When gear 2 82 rotates back and forth, the rotating rod 86 drives the fixed block 800 and slider 802 to rotate back and forth. The slider 802 rotates back and forth and intermittently strikes the connecting plate 89, causing the hopper 4 to vibrate, further improving the unblocking efficiency.

[0028] The cleaning component 9 includes a scraper 90, which is rotatably connected to the inner wall of the hopper 4. A long rod 87 passes through a ring 91, and a short rod 93 is fixed to the inner side of the ring 91. An arc-shaped groove 92 is formed on the outer surface of the long rod 87, and the short rod 93 abuts against the inner wall of the arc-shaped groove 92. The end of the scraper 90 away from the hopper 4 is fixed to the outer surface of the ring 91. When the long rod 87 reciprocates, the surface of the short rod 93 abuts against the inner wall of the arc-shaped groove 92, which causes the ring 91 to drive the scraper 90 to rotate reciprocally. At this time, the scraper 90 scrapes the inner wall of the hopper 4, which can prevent material from adhering and causing blockage.

[0029] A vibrator 6 is installed on the top of the mounting panel 1, and a vibration groove 5 is installed on the top of the vibrator 6. The vibration groove 5 is located below the hopper 4. A mounting plate 7 is fixed on the right side of the connecting frame 3. A limit plate 11 is slidably connected to the inner side of the mounting plate 7. A locking button 10 is provided on the outer surface of the limit plate 11. A through hole is provided at the connection between the mounting plate 7 and the locking button 10 to facilitate the shrinking process.

[0030] When coal needs to be split, coal is poured into hopper 4, and vibrator 6 and rotator are turned on. The coal then enters the vibrating trough 5 through hopper 4. Using the operation of vibrator 6, the material flows into cylinder 2 through the gap between limit plate 11 and vibrating trough 5. The material is flattened, and the rotator sequentially feeds the material into cylinder 2 for splitting. Locking button 10 has a threaded hole or threaded post, and this threaded hole or threaded post is connected to the limit plate 11... The threaded posts or threaded holes correspond to each other, allowing adjustment of the distance between the limiting plate 11 and the vibrating groove 5. When the hopper 4 is blocked, the motor 80 is turned on, and gear 1 81 rotates. When gear 1 81 meshes with gear 2 82, gear 2 82 rotates, driving the tooth 84 and L-shaped plate 83 upward. When gear 1 81 is not meshed with gear 2 82, gear 1 81 meshes with tooth 84, driving tooth 84 and L-shaped plate 83 downward. At this time, gear 2 82 reverses, thus adjusting the distance between the limiting plate 11 and the vibrating groove 5. During continuous operation, the L-shaped plate 83 moves up and down reciprocally, which drives the long rod 87 and the protrusion 88 to move synchronously. At this time, the protrusion 88 loosens the material, preventing material jamming, clogging, and blockage, thus enabling unblocking without manual intervention or stopping the processing. When the long rod 87 reciprocates, the surface of the short rod 93 abuts against the inner wall of the arc-shaped groove 92, causing the ring 91 to drive the scraper 90 to rotate reciprocally. At this time, the inner wall of the hopper 4 inside the scraper 90 is scraped, preventing material adhesion. When a blockage occurs, as gear 2 82 reciprocates, the rotating rod 86, fixed block 800, and slider 802 reciprocate. When the arc-shaped surface of slider 802 contacts the surface of connecting plate 89, slider 802 moves into slide groove 801, and spring 803 is compressed. When slider 802 disengages from connecting plate 89, spring 803 is released, and slider 802 resets. Thus, when fixed block 800 and slider 802 reciprocate, they can intermittently strike connecting plate 89, causing hopper 4 to vibrate and further improving unblocking efficiency.

[0031] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A rotary reducing device for coal testing and sample preparation, comprising a mounting panel (1), characterized in that: A connecting frame (3) is fixed on the top of the mounting panel (1), a material cylinder (2) is mounted on the top of the mounting panel (1) via a rotator, a hopper (4) is mounted on the inner side of the connecting frame (3), and a dredging component (8) and a cleaning component (9) are provided on the surface of the hopper (4) and the connecting frame (3). The unblocking component (8) includes: Motor (80), motor (80) is used to provide driving force; Gear 1 (81) is used to drive gear 2 (82) to move synchronously; Gear 2 (82) is used to cooperate with gear 1 (81) so that the teeth (84) and L-shaped plate (83) reciprocate.

2. The rotary reducing device for coal testing and sample preparation according to claim 1, characterized in that: The motor (80) is fixed to the outer surface of the connecting frame (3). Gear 1 (81) is rotatably connected to the outer surface of the connecting frame (3). Gear 2 (82) is rotatably connected to the outer surface of the connecting frame (3). An L-shaped plate (83) is slidably connected to the outer surface of the connecting frame (3). A base plate (85) is fixed to the outer surface of the connecting frame (3). Teeth (84) are fixed to the outer surface of the L-shaped plate (83). Teeth (84) mesh with gear 2 (82). The output shaft of the motor (80) is fixed to the outer surface of gear 1 (81). A long rod (87) is fixed to the bottom of the L-shaped plate (83) away from the base plate (85). The long rod (87) extends into the hopper (4). A protrusion is fixed to the outer surface of the long rod (87). 88), the surface of the gear two (82) is provided with a rotating rod (86), the rotating rod (86) passes through the gear two (82) and the connecting frame (3), and the rotating rod (86) is fixedly connected to the gear two (82). The rotating rod (86) is rotatably connected to the connecting frame (3). The outer surface of the hopper (4) is fixed with a connecting plate (89). The end of the rotating rod (86) away from the gear two (82) is fixed with a fixing block (800). The outer surface of the fixing block (800) is provided with a sliding groove (801). The inner wall of the sliding groove (801) is slidably connected with a slider (802). The outer surface of the slider (802) is fixed with a spring (803). The end of the spring (803) away from the slider (802) is fixed on the inner wall of the sliding groove (801).

3. The rotary reducing device for coal testing and sample preparation according to claim 2, characterized in that: The cleaning assembly (9) includes a scraper (90) which is rotatably connected to the inner wall of the hopper (4). A long rod (87) passes through a ring (91). A short rod (93) is fixed to the inner side of the ring (91). An arc groove (92) is provided on the outer surface of the long rod (87). The short rod (93) abuts against the inner wall of the arc groove (92). The end of the scraper (90) away from the hopper (4) is fixed to the outer surface of the ring (91).

4. The rotary reducing device for coal testing and sample preparation according to claim 1, characterized in that: A vibrator (6) is installed on the top of the mounting panel (1), and a vibration groove (5) is installed on the top of the vibrator (6), which is located below the hopper (4).

5. The rotary reducing device for coal testing and sample preparation according to claim 1, characterized in that: The right side of the connecting frame (3) is fixed with an installation plate (7), and the inner side of the installation plate (7) is slidably connected with a limiting plate (11). The outer surface of the limiting plate (11) is provided with a locking button (10), and a through hole is provided at the connection between the installation plate (7) and the locking button (10).

6. The rotary reducing device for coal testing and sample preparation according to claim 2, characterized in that: The second gear (82) is configured as a half gear, and the surface of the first gear (81) is equipped with four teeth, which are arranged in two groups in a circumferential array on the outer surface of the first gear (81).

7. A rotary reducing device for coal testing and sample preparation according to claim 2, characterized in that: The end of the slider (802) away from the spring (803) is set to be arc-shaped.