A flat coal conveyer drum coal guide plate
By setting inner arc, flat arc, and outer arc scrapers on the coal guide plate of the coal leveler and adjusting their height using an adjustment component, the problem of uneven coal piles is solved, improving the quality and efficiency of coal leveling and reducing the need for manual trimming.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- WUHAN DANGHUIKANG TECH CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-06-26
AI Technical Summary
Existing coal levelers tend to create ridges on both sides of the car body when pushing coal, resulting in uneven coal piles, which affects loading capacity and transportation safety, requiring manual repair and increasing operating costs.
Design a coal leveler roller guide plate, comprising an inner arc scraper, a flat arc scraper, and an outer arc scraper. The height can be adjusted by an adjustment component to form a continuous and smooth rake profile, preventing coal from gathering in the middle, promoting lateral coal distribution, and eliminating ridges on both sides.
It effectively eliminates the ridge formation on both sides of the coal pile, ensures the uniformity of the coal pile, improves the quality and efficiency of coal leveling, adapts to the needs of different carriages, and reduces the cost of manual trimming.
Smart Images
Figure CN224410868U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of coal leveling machine technology, specifically to a coal leveling machine drum guide plate. Background Technology
[0002] Coal levelers are key equipment used to level coal piles during coal loading and transportation. Their core working components flatten the coal in the car body through rotation or pushing motion to improve loading efficiency and ensure transportation safety. Among them, roller-type coal levelers are widely used in coal pile leveling operations of various freight cars because they use a spiral structure to separate and level coal.
[0003] Existing coal levelers, when pushing coal to both sides, are prone to "ridged" phenomena on both sides of the auger axis due to the influence of coal quality, pushing speed, and car body structure. This means that the coal piles too high on both sides of the car body, while depressions and grooves appear in the middle or on the side edges, resulting in poor coal pile flatness. This unevenness not only affects subsequent loading capacity but may also cause transportation safety hazards due to the shift in the center of gravity of the coal pile, requiring manual secondary adjustments and increasing operating costs and time. Therefore, we propose a rotary guide plate for coal levelers. Utility Model Content
[0004] The purpose of this utility model is to provide a coal leveling machine roller guide plate to solve the problem mentioned in the background art. When the existing coal leveling machine pushes coal to both sides, it is affected by the coal quality, pushing speed and the structure of the car body. The coal is easily formed on both sides of the spiral shaft, that is, the coal piles too high on both sides of the car body, while the middle or the side edges are concave and have grooves, resulting in poor flatness of the coal pile. This unevenness not only affects the subsequent loading capacity, but may also cause transportation safety hazards due to the shift of the center of gravity of the coal pile, requiring manual secondary adjustment, increasing the operating cost and time.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a coal leveling machine drum guide plate, comprising: a coal leveling machine body, a coal leveling auger rotatably connected to the coal leveling machine body, inner arc scrapers on both axial sides of the coal leveling auger, a flat arc scraper fixedly connected to one side of the inner arc scraper, and an outer arc scraper fixedly connected to the other side of the flat arc scraper, the inner arc scraper, the flat arc scraper and the outer arc scraper trimming the coal pile after leveling, and an adjustment component between the flat arc scraper and the coal leveling machine body, the adjustment component adjusting the height of the inner arc scraper, the flat arc scraper and the outer arc scraper.
[0006] The adjustment component includes a fixed half-ring that is fixedly connected to the main body of the coal leveler. The fixed half-ring has a first mounting hole. A movable half-ring is provided on one side of the fixed half-ring. A second mounting hole is provided on the movable half-ring. Fixing bolts are inserted into the first mounting hole and the second mounting hole. The fixed half-ring is fixedly connected to the flat arc scraper.
[0007] The diameters of the first mounting hole and the second mounting hole are matched.
[0008] The inner arc scraper is located on the side near the center of the coal leveling spiral and extends towards the coal leveling spiral, with the inner arc scraper partially overlapping the end of the coal leveling spiral.
[0009] The outer arc scraper is located on the side away from the coal leveling spiral body, and extends away from the main body of the coal leveling machine.
[0010] Among them, the inner arc scraper, flat arc scraper, and outer arc scraper on both sides of the axial direction of the flat coal spiral are symmetrically distributed.
[0011] The inner arc scraper, the flat arc scraper, and the outer arc scraper are integrally formed.
[0012] The first mounting hole and the second mounting hole are provided in multiples along the axial direction of the fixed half ring and the movable half ring, respectively, and the number of the first mounting holes is greater than the number of the second mounting holes.
[0013] This utility model has at least the following beneficial effects:
[0014] In use, this utility model uses inner arc, flat arc, and outer arc scrapers to form a continuous and smooth coal-raking profile, effectively preventing coal from gathering in the center, promoting lateral coal distribution, eliminating ridges on both sides, and ensuring uniform coal pile. Through the adjustment component, multiple sets of mounting holes of fixed and movable half rings are used to achieve graded height adjustment, adapting to different carriages. The adjustment only requires loosening bolts, selecting hole positions, and locking, which is efficient and convenient. The overall combination greatly improves the quality and efficiency of coal leveling, meeting diverse operational needs. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0016] Figure 2 This is a schematic diagram of the adjustment component of this utility model;
[0017] Figure 3 This is a schematic diagram of the front view of the flat arc scraper of this utility model;
[0018] Figure 4 This is a side view of the fixed semi-ring of this utility model.
[0019] In the diagram: 1. Main body of the coal leveler; 2. Coal leveling auger; 3. Inner arc scraper; 4. Flat arc scraper; 5. Outer arc scraper; 6. Adjustment component; 61. Fixed half ring; 62. First mounting hole; 63. Movable half ring; 64. Second mounting hole; 65. Fixing bolt. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Example 1
[0022] Please see Figures 1 to 4 This utility model provides a technical solution: a coal leveling machine roller guide plate, comprising: a coal leveling machine body 1, a coal leveling auger 2 rotatably connected to the coal leveling machine body 1, inner arc scrapers 3 on both axial sides of the coal leveling auger 2, a flat arc scraper 4 fixedly connected to one side of the inner arc scraper 3, and an outer arc scraper 5 fixedly connected to the other side of the flat arc scraper 4. The inner arc scraper 3, flat arc scraper 4, and outer arc scraper 5 trim the coal pile after leveling. An adjustment component 6 is provided between the flat arc scraper 4 and the coal leveling machine body 1, and the adjustment component 6 adjusts the height of the inner arc scraper 3, flat arc scraper 4, and outer arc scraper 5. The inner arc scraper 3, flat arc scraper 4, and outer arc scraper 5 together form a continuous and smoothly transitioning rake profile, which can perform secondary trimming of the coal pile after leveling, effectively eliminating the ridge formation on both sides of the coal pile. The adjustment component 6 uses a multi-position positioning structure to adjust the working height of the inner arc scraper 3, the flat arc scraper 4 and the outer arc scraper 5 in a stepped manner to adapt to freight cars of different heights and meet the diverse needs of coal leveling operations.
[0023] The adjusting assembly 6 includes a fixed half-ring 61 fixedly connected to the main body 1 of the coal leveler. The fixed half-ring 61 has a first mounting hole 62. A movable half-ring 63 is located on one side of the fixed half-ring 61, and a second mounting hole 64 is located on the movable half-ring 63. Fixing bolts 65 pass through the first mounting hole 62 and the second mounting hole 64. The fixed half-ring 61 is fixedly connected to the flat arc scraper 4. The fixed half-ring 61 is made of steel that has undergone heat treatment, and its inner wall is machined with anti-slip serrations to increase the friction between it and the movable half-ring 63. The movable half-ring 63 uses the same material and processing technology as the fixed half-ring 61. Its outer wall fits tightly against the inner wall of the fixed half-ring 61. Tightening the fixing bolts 65 can achieve rigid locking of the fixed half-ring 61 and the movable half-ring 63, with a radial displacement not exceeding 0.1 mm after locking. In use, depending on the height of the carriage to be loaded, first loosen the fixing bolts 65 on the fixed half-ring 61 and the movable half-ring 63. Utilize the matching of the first mounting hole 62 and the second mounting hole 64, along with their center-to-center distance design, to achieve multi-position adjustment. After aligning the holes, insert the fixing bolts 65. At this point, the inner arc, flat arc, and outer arc scrapers 5 are height-adapted with the adjusting component 6. During operation, the rigid locking structure of the adjusting component 6 ensures the scraper position remains stable, preventing displacement due to vibration. When changing to a different model of carriage, repeat the above steps of loosening bolts, selecting hole positions, and tightening to quickly readjust the scraper height without requiring complete disassembly, significantly improving adaptation efficiency.
[0024] The first mounting hole 62 and the second mounting hole 64 have matching diameters, and the hole walls are chamfered to avoid scratches during bolt installation. The center distance error between the first mounting hole 62 and the second mounting hole 64 is strictly controlled to not exceed 0.3mm to ensure that the bolt can be smoothly inserted and accurately positioned. This also enhances the locking strength of the fixed half ring 61 and the movable half ring 63, preventing the bolts from loosening due to vibration during operation, thereby ensuring the long-term stable operation of the adjustment component 6.
[0025] The inner arc scraper 3 is positioned near the center of the leveling auger 2 and extends towards the leveling auger 2. The inner arc scraper 3 partially overlaps with the end of the leveling auger 2, with an extension length of 90-110mm and an overlap length of 35-45mm. The overlapping area of the inner arc scraper 3 and the end of the leveling auger 2 forms a guide channel. When the auger rotates, the coal moves outward under centrifugal force. The inner arc scraper 3, through the overlapping portion, prevents accumulation in the middle and simultaneously guides the coal into the trimming area of the leveling arc scraper 4, reducing coal accumulation in the middle from the source. Precise gap control avoids mechanical interference between the inner arc scraper 3 and the auger, and also prevents coal from leaking through the gap, causing guide failure. This ensures a more uniform initial distribution of coal on both sides of the coal pile during secondary leveling, laying a good foundation for subsequent leveling and outer arc scraper 5 operations. It effectively prevents coal from accumulating in the middle of the car and ensures the coal's movement towards both sides of the car.
[0026] The outer arc scraper 5 is located on the side away from the coal leveling auger 2. The outer arc scraper 5 extends away from the main body 1 of the coal leveling machine. The angle between the tangent of the arc surface of the outer arc scraper 5 and the horizontal direction is 18°-22°. This angle design can maximize the diversion of coal to both sides of the car body and further optimize the coal leveling effect.
[0027] The inner arc scraper 3, the flat arc scraper 4, and the outer arc scraper 5 on both sides of the coal leveling spiral 2 are symmetrically distributed. Their symmetrical center plane is completely coincident with the central axis of the coal leveling spiral 2. The spacing between the scrapers on both sides is adapted to the axial length of the coal leveling spiral 2 to ensure that the coal leveling effect on both sides is consistent.
[0028] The inner arc scraper 3, the flat arc scraper 4, and the outer arc scraper 5 are integrally formed. The inner arc scraper 3, the flat arc scraper 4, and the outer arc scraper 5 are integrally cast from high manganese steel. After forming, the surface is subjected to overall quenching treatment, and the hardness reaches HRC47-48. The scraper thickness is 12-13mm. The joints of each scraper are provided with transition rounded corners to avoid coal accumulation at the transition points.
[0029] Multiple first mounting holes 62 and second mounting holes 64 are respectively provided along the axial direction of the fixed half ring 61 and the movable half ring 63, and the number of first mounting holes 62 is greater than the number of second mounting holes 64. By selecting the first mounting holes 62 and the second mounting holes 64 at different positions to cooperate, the height adjustment can be achieved in stages to meet the precise adaptation requirements of different carriage heights.
[0030] Before operation, the height of the scraper can be adjusted and the locking bolts tightened by selecting the matching mounting holes through the adjustment component 6, based on the height of the car body. After startup, the leveling auger 2 rotates to transport the coal to both sides. The inner arc scraper 3 guides the coal to flow to both sides, the flat arc scraper 4 "cuts the high and fills the low" of the coal ridge, and the outer arc scraper 5 pushes the coal to the edge of the car body. The one-piece formed scraper ensures smooth coal flow. During operation, the trimming effect can be observed through monitoring, and the forward speed can be fine-tuned. When changing cars, simply slide the adjustment component 6 and re-lock it. After completion, clean and inspect the components. The overall coordination ensures the stability of the coal leveling area and guarantees operational efficiency and safety.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A coal leveling machine drum guide plate, comprising: The main body of the coal leveling machine is characterized in that: a coal leveling auger is rotatably connected to the main body of the coal leveling machine; an inner arc scraper is provided on both sides of the axial direction of the coal leveling auger; a flat arc scraper is fixedly connected to one side of the inner arc scraper; and an outer arc scraper is fixedly connected to the other side of the flat arc scraper. The inner arc scraper, flat arc scraper, and outer arc scraper trim the coal pile after leveling. An adjustment component is provided between the flat arc scraper and the main body of the coal leveling machine, and the adjustment component adjusts the height of the inner arc scraper, flat arc scraper, and outer arc scraper.
2. The coal guide plate of the coal leveler drum according to claim 1, characterized in that: The adjustment assembly includes a fixed half-ring that is fixedly connected to the main body of the coal leveler. The fixed half-ring has a first mounting hole. A movable half-ring is provided on one side of the fixed half-ring. A second mounting hole is provided on the movable half-ring. Fixing bolts are inserted into the first mounting hole and the second mounting hole. The fixed half-ring is fixedly connected to the flat arc scraper.
3. The coal guide plate of the leveling machine drum according to claim 2, characterized in that: The diameters of the first mounting hole and the second mounting hole are matched.
4. The coal guide plate of the leveling machine drum according to claim 1, characterized in that: The inner arc scraper is located on one side near the center of the coal leveling spiral and extends towards the coal leveling spiral, with the inner arc scraper partially overlapping the end of the coal leveling spiral.
5. The coal guide plate of the leveling machine drum according to claim 1, characterized in that: The outer arc scraper is located on the side away from the coal leveling auger, and the outer arc scraper extends away from the main body of the coal leveling machine.
6. The coal guide plate of the leveling machine drum according to claim 1, characterized in that: The inner arc scraper, flat arc scraper, and outer arc scraper on both sides of the axial direction of the coal leveling spiral are symmetrically distributed.
7. The coal guide plate of the leveling machine drum according to claim 1, characterized in that: The inner arc scraper, the flat arc scraper, and the outer arc scraper are integrally formed.
8. The coal guide plate of the leveling machine drum according to claim 2, characterized in that: The first mounting hole and the second mounting hole are provided in multiples along the axial direction of the fixed half ring and the movable half ring, respectively, and the number of the first mounting holes is greater than the number of the second mounting holes.