Automatic coal leveler
By introducing adjustment and limiting mechanisms into the coal leveler, and utilizing electric push cylinders and pressure sensors, the size of the coal leveling plate is automatically adjusted to adapt to different vehicle top openings, solving the problem of limited applicability in existing technologies and achieving wider applicability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG HAOCHUAN ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD
- Filing Date
- 2025-09-29
- Publication Date
- 2026-07-28
AI Technical Summary
The existing coal leveling device cannot adapt to the inconsistent opening sizes on the top of different conveying vehicles, thus limiting its applicability.
An automatic coal leveler was designed, which includes an adjustment mechanism and a limiting mechanism. The adjustment plate is driven to expand or contract by an electric push cylinder to adapt to different vehicle top opening sizes. The expansion distance is controlled by a pressure sensor and a limiting mechanism.
It enables automatic adjustment based on the size of the opening on the vehicle's roof, expanding the device's applicability and avoiding issues of insufficient or excessive unfolding length.
Smart Images

Figure CN224563757U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of adjustable coal levelers, specifically an automatic coal leveler. Background Technology
[0002] The coal leveler includes a lifting mechanism and a leveling plate. The lifting mechanism is used to move the leveling plate up and down. During the movement of the vehicle, the leveling plate scrapes down the coal protruding from the top of the vehicle body to facilitate better transportation.
[0003] In the existing technology, the opening size on the top of different conveyor vehicles is inconsistent, and flat coal plates with fixed dimensions cannot be used in this situation. Utility Model Content
[0004] The purpose of this utility model is to provide an automatic coal leveler in order to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: an automatic coal leveler, comprising a coal leveling plate, a connecting rod fixedly installed on the top of one side of the coal leveling plate, an adjusting mechanism slidably installed inside the coal leveling plate, a fixing member fixedly installed on the top of the outer side of the coal leveling plate, an electric push cylinder installed at the center of the top horizontal plate of the fixing member, the piston rod of the electric push cylinder extending downward and penetrating into the interior of the coal leveling plate and connected to the adjusting mechanism, the two ends of the adjusting mechanism penetrating to the outside of both ends of the coal leveling plate, and a limiting mechanism installed on the top of the coal leveling plate, the limiting mechanism being used to limit the distance the adjusting plate extends outward.
[0006] As a further embodiment of this utility model: the adjustment mechanism includes two adjustment plates axially slidably installed in the inner cavity of the coal leveling plate. The two adjustment plates are symmetrically distributed from left to right. The ends of the two adjustment plates that are far apart from each other extend to the outside of the coal leveling plate. The sides of the two adjustment plates that are close to each other are integrally formed with a pressure-bearing inclined surface. A squeezing plate is provided between the two pressure-bearing inclined surfaces. Both ends of the squeezing plate are integrally formed with squeezing inclined surfaces that match the pressure-bearing inclined surfaces. The top of the piston rod of the electric push cylinder is fixedly connected to the top of the squeezing plate.
[0007] As a further embodiment of this utility model: the limiting mechanism includes a fixed ear fixedly connected to the top of the adjusting plate, a movable rod fixedly installed on the side of the fixed ear near the electric push cylinder, an integrally formed mounting plate on the end of the movable rod away from the fixed ear, an extrusion shaft axially slidably installed in the top protrusion of the mounting plate, a protrusion detachably connected to one end of the extrusion shaft by bolts, and a spring sleeved with the extrusion shaft fixedly installed between the protrusion and the mounting plate.
[0008] As a further embodiment of this utility model: the limiting mechanism further includes a sliding member slidably installed on the outer periphery of the moving rod, a pressure sensor is installed inside the top of the sliding member, and a fixed plate protruding outward is installed on one side of the coal leveling plate.
[0009] As a further improvement of this utility model: the fixing plate has an axially formed groove, and the crossbar of the sliding member has a through hole aligned with the groove.
[0010] As a further embodiment of this utility model: the inner wall of the coal leveling plate is provided with a circumferential groove, and the two sides of the adjusting plate are integrally formed with a sliding plate that is slidably connected to the groove.
[0011] Compared with the prior art, the beneficial effects of this utility model are: 1. By setting up adjustment and limiting mechanisms, the device can be adapted to the size of the top opening of the transport vehicle, thus improving its applicability. Attached Figure Description
[0012] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 For the present utility model Figure 1 Enlarged view of a portion of point A in the middle; Figure 3 This is a schematic diagram of the internal structure of the present invention; Figure 4 This is the intended sliding connection between the sphere and the groove of this utility model.
[0013] In the diagram: 1. Coal leveling plate; 2. Connecting rod; 3. Adjusting plate; 4. Moving rod; 5. Fixing component; 6. Electric push cylinder; 7. Fixing plate; 8. Sliding component; 9. Pressure sensor; 10. Mounting plate; 11. Extrusion shaft; 12. Spring; 13. Groove; 14. Slide plate; 15. Extrusion plate; 16. Slide groove. Detailed Implementation
[0014] 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.
[0015] Please see Figures 1-4In this embodiment of the utility model, an automatic coal leveler includes a coal leveling plate 1. A connecting rod 2 is fixedly installed on the top of one side of the coal leveling plate 1. An adjusting mechanism is slidably installed inside the coal leveling plate 1. A fixing member 5 is fixedly installed on the top of the outer side of the coal leveling plate 1. An electric push cylinder 6 is installed at the center of the top horizontal plate of the fixing member 5. The piston rod of the electric push cylinder 6 extends downward and penetrates into the interior of the coal leveling plate 1 and is connected to the adjusting mechanism. The two ends of the adjusting mechanism penetrate to the outside of both ends of the coal leveling plate 1. A limiting mechanism is installed on the top of the coal leveling plate 1. The limiting mechanism is used to limit the distance that the adjusting plate 3 extends outward.
[0016] In this embodiment: when the coal leveling plate 1 is at its highest position, the car body loaded with coal moves to below the coal leveling plate 1. Then, the lifting mechanism (such as a lifting hydraulic cylinder) connected to the connecting rod 2 is activated to push the connecting rod 2 downward. The connecting rod 2 drives the coal leveling plate 1 downward until it contacts the opening at the top of the car body. At this time, the adjustment mechanism is activated to push out the adjustment plate 3 so that the device can adapt to the top opening of the vehicle. The limiting mechanism restricts the unfolding distance of the adjustment mechanism to avoid the problem of insufficient unfolding length or excessive unfolding length.
[0017] Please refer to this carefully. Figure 1 , Figure 3 and Figure 4 The adjustment mechanism includes two adjustment plates 3 axially slidably installed in the inner cavity of the coal leveling plate 1. The two adjustment plates 3 are symmetrically distributed from left to right. The ends of the two adjustment plates 3 that are far apart from each other extend to the outside of the coal leveling plate 1. The sides of the two adjustment plates 3 that are close to each other are integrally formed with a pressure inclined surface. A squeezing plate 15 is provided between the two pressure inclined surfaces. Both ends of the squeezing plate 15 are integrally formed with squeezing inclined surfaces that match the pressure inclined surfaces. The top of the piston rod of the electric push cylinder 6 is fixedly connected to the top of the squeezing plate 15. A sliding groove 16 is provided circumferentially on the inner wall of the coal leveling plate 1. The two sides of the adjustment plate 3 are integrally formed with a sliding plate 14 that is slidably connected to the sliding groove 16.
[0018] In this embodiment: by activating the electric push cylinder 6, the electric push cylinder 6 shortens, pulling the extrusion plate 15 upward. The extrusion slope of the extrusion plate 15 extrudes the pressure slope of the adjusting plate 3. At this time, the two adjusting plates 3 move outward to increase the coal leveling area to accommodate different vehicles. When the electric push cylinder 6 extends, the spherical structure at the end of the extrusion plate 15 pulls the ball groove on the inclined surface of the slide plate 14 for the ball to slide, thereby resetting the two adjusting plates 3 (e.g., ...). Figure 4 (As shown).
[0019] Please refer to this carefully. Figure 2The limiting mechanism includes a fixed ear fixedly connected to the top of an adjusting plate 3. A moving rod 4 is fixedly installed on the side of the fixed ear near the electric push cylinder 6. An installation plate 10 is integrally formed on the end of the moving rod 4 away from the fixed ear. An extrusion shaft 11 is axially slidably installed in the protrusion at the top of the installation plate 10. One end of the extrusion shaft 11 is detachably connected to a protrusion by bolts. A spring 12 that is sleeved with the extrusion shaft 11 is fixedly installed between the protrusion and the installation plate 10. The limiting mechanism also includes a sliding member 8 slidably installed on the outer periphery of the moving rod 4. A pressure sensor 9 is installed in the top of the sliding member 8. A fixed plate 7 protruding outward is installed on one side of the leveling plate 1.
[0020] In this embodiment: when the adjustment plate 3 has been extended to the specified distance, the bolts fixing the sliding member 8 are loosened first, and then the sliding member 8 is pulled to move. According to the length scale engraved on the sliding member 8 (the scale is designed along the length direction of the coal leveling plate 1), the position of the sliding member 8 is adjusted. After the adjustment is completed, the bolts are tightened on the sliding member 8. Then, when the adjustment plate 3 moves, one adjustment plate 3 pulls the moving rod 4 to move. The moving rod 4 drives the extrusion shaft 11 to move through the mounting plate 10 until the extrusion shaft 11 contacts the sensing end of the pressure sensor 9. At this time, the extrusion shaft 11 stops moving. Then the moving mounting plate 10 continues to move. At this time, the spring 12 is compressed, generating a reaction force and extruding the pressure sensor 9 through the extrusion shaft 11 until the preset pressure threshold is reached. At this time, the pressure sensor sends an electrical signal to the controller to control the electric push cylinder 6 to stop running.
[0021] Please refer to the figure carefully. The fixed plate 7 has a slot 13 axially opened inside, and the crossbar of the sliding member 8 has a through hole that is aligned with the slot 13.
[0022] In this embodiment, the design of the through hole and the slot 13 can fix the position of the moved sliding member 8.
[0023] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. An automatic coal leveler, comprising a coal leveling plate (1), characterized in that, A connecting rod (2) is fixedly installed on the top of one side of the flat coal plate (1). An adjustment mechanism is slidably installed inside the flat coal plate (1). A fixing member (5) is fixedly installed on the top of the outer side of the flat coal plate (1). An electric push cylinder (6) is installed at the center of the top horizontal plate of the fixing member (5). The piston rod of the electric push cylinder (6) extends downward and penetrates into the interior of the flat coal plate (1) and is connected to the adjustment mechanism. The two ends of the adjustment mechanism penetrate to the outside of both ends of the flat coal plate (1). A limiting mechanism is installed on the top of the flat coal plate (1). The limiting mechanism is used to limit the distance that the adjustment plate (3) extends outward.
2. An automatic coal leveler according to claim 1, characterized in that, The adjustment mechanism includes two adjustment plates (3) axially slidably installed in the inner cavity of the coal leveling plate (1). The two adjustment plates (3) are symmetrically distributed on the left and right. The ends of the two adjustment plates (3) that are far apart from each other extend to the outside of the coal leveling plate (1). The sides of the two adjustment plates (3) that are close to each other are integrally formed with a pressure inclined surface. A squeezing plate (15) is provided between the two pressure inclined surfaces. Both ends of the squeezing plate (15) are integrally formed with squeezing inclined surfaces that match the pressure inclined surfaces. The top of the piston rod of the electric push cylinder (6) is fixedly connected to the top of the squeezing plate (15).
3. An automatic coal leveler according to claim 2, characterized in that, The limiting mechanism includes a fixed lug fixedly connected to the top of an adjusting plate (3). A moving rod (4) is fixedly installed on the side of the fixed lug near the electric push cylinder (6). An installation plate (10) is integrally formed on the end of the moving rod (4) away from the fixed lug. An extrusion shaft (11) is axially slidably installed in the top protrusion of the installation plate (10). One end of the extrusion shaft (11) is detachably connected to a protrusion by bolts. A spring (12) that is sleeved with the extrusion shaft (11) is fixedly installed between the protrusion and the installation plate (10).
4. An automatic coal leveler according to claim 3, characterized in that, The limiting mechanism also includes a sliding member (8) that is slidably installed on the outer periphery of the moving rod (4), a pressure sensor (9) is installed in the top of the sliding member (8), and a fixed plate (7) protruding outward is installed on one side of the coal leveling plate (1).
5. An automatic coal leveler according to claim 4, characterized in that, The fixed plate (7) has an axially oriented slot (13) inside, and the sliding member (8) has a through hole on its crossbar that is aligned with the slot (13).
6. An automatic coal leveler according to claim 5, characterized in that, The inner wall of the flat coal plate (1) is provided with a circumferential groove (16), and the two sides of the adjusting plate (3) are integrally formed with a sliding plate (14) that is slidably connected to the groove (16).