A screed

Abstract

The application provides a material leveler, and belongs to the technical field of metallurgical sintering processes.The material leveler comprises a top frame, a lifting frame, a lifting mechanism and a vibration assembly; the top frame is fixed on a sintering machine platform steel beam; the lifting mechanism is arranged on the top frame and is used to drive the lifting frame to lift; the lifting frame is arranged below the top frame, and a vibration plate and a material leveler plate are sequentially arranged at the bottom of the lifting frame along the direction in which a trolley travels; the vibration plate and the material leveler plate both have circular arc surfaces for material leveling at the bottom; the vibration plate is transversely and slidably connected to the lifting frame along the length direction of the vibration plate, and the material leveler plate is fixed to the lifting frame; the vibration assembly is arranged on the lifting frame and is used to drive the vibration plate to reciprocatingly slide. The vibration assembly drives the vibration plate to reciprocatingly slide at a high frequency and a short distance, so that dynamic material leveling is realized, the air permeability of the material is effectively improved, the material leveler plate further levels and compacts the material that has been preliminarily processed by the vibration plate, the surface of the material is more uniform, and the sintering effect is improved.

Description

Technical Field

[0001] This application belongs to the technical field of metallurgical sintering processes, and more specifically, relates to a leveling device. Background Technology

[0002] In the sintering production process, the sintering machine leveler plays a role in leveling and lightly pressing the material surface. The mixed material is evenly distributed on the sintering trolley by a wide belt feeder and a nine-roller distributor. The leveler installed between the nine-roller distributor and the igniter can make the material surface on the trolley flat and improve the permeability of the material layer, thereby improving the production quality of sintered ore.

[0003] Most of the material levelers used in existing sintering processes are scrapers. During use, the material surface is leveled as the trolley moves and the scraper moves over it. The scraper is connected to the steel beam of the sintering machine platform above it by a chain, and a counterweight is set on the scraper to achieve a flat and dense material surface.

[0004] Because the scraper statically levels the material on the sintering trolley surface, large particles tend to concentrate in areas with large gaps and low resistance, while small particles concentrate in areas with small gaps and high resistance. This results in poor leveling, leading to uneven airflow distribution during sintering and affecting the sintering effect. Furthermore, when the sintering mixture has a slightly high moisture content or contains sticky materials, these materials easily adhere to the scraper surface. As the adhesion layer thickens, it alters the actual shape and effective height of the scraper, thus compromising the leveling effect. Summary of the Invention

[0005] The purpose of this application is to provide a leveling device to solve the technical problems existing in the prior art, such as poor leveling effect, uneven airflow distribution during sintering, affecting the sintering effect, and material easily adhering to the scraper surface, which destroys the leveling effect.

[0006] To achieve the above objectives, the technical solution adopted in this application is: to provide a leveling device, comprising:

[0007] The top frame is fixed to the steel beam of the sintering machine platform;

[0008] A lifting frame is located below the top frame. A vibrating plate and a flat plate are sequentially arranged at the bottom of the lifting frame along the direction of travel of the trolley. Both the vibrating plate and the flat plate have an arc surface at the bottom for leveling. The vibrating plate is laterally slidably connected to the lifting frame, and the flat plate is fixed to the lifting frame.

[0009] A lifting mechanism, mounted on the top frame, is used to drive the lifting frame to move up and down; and

[0010] A vibration assembly is mounted on the lifting frame and is used to drive the vibration plate to slide back and forth.

[0011] In one possible implementation, based on the above technical solutions, the vibration component includes:

[0012] The drive motor is vertically mounted on the lifting frame;

[0013] A turntable is located below the lifting frame and is fixed coaxially with the output shaft of the drive motor.

[0014] An eccentric rod is fixed at a non-coaxial position on the bottom surface of the turntable; and

[0015] A limiting plate is disposed on the vibrating plate. A strip-shaped hole is formed on the top surface of the limiting plate. The length direction of the strip-shaped hole is perpendicular to the sliding direction of the vibrating plate. The eccentric rod is located inside the strip-shaped hole.

[0016] In conjunction with the above technical solutions, in one possible implementation, the vibration component further includes:

[0017] A reinforcing spring is connected at one end to the lifting frame and at the other end to the vibrating plate. The extension and contraction direction of the reinforcing spring is consistent with the sliding direction of the vibrating plate.

[0018] In one possible implementation, based on the above technical solutions, the vibrating plate and the limiting plate are divided into two parts along the centerline of the length direction of the strip hole; a connecting assembly is provided between the two parts of the vibrating plate; both ends of the reinforcing spring are detachably connected to the lifting frame and the vibrating plate.

[0019] In one possible implementation, based on the above technical solutions, the connection component includes:

[0020] Multiple sets of connecting plates, each set consisting of two pairs of plates facing each other and respectively fixed to the two sections of the vibrating plate; and

[0021] Multiple sets of bolt and nut groups correspond one-to-one with each of the connecting plates. The bolts pass through two of the connecting plates and are then tightened into the threads of the nuts.

[0022] In one possible implementation, based on the above technical solutions, the bottom surface of the lifting frame is provided with two guide grooves along the sliding direction of the vibrating plate. The guide grooves are open at both ends, and the tops of both parts of the vibrating plate are fixed to guide strips for inserting into the corresponding guide grooves. The cross-sections of the guide grooves and the guide strips are both T-shaped.

[0023] In one possible implementation, based on the above technical solutions, the lifting mechanism includes:

[0024] Two lifting rods are vertically slidably mounted at both ends of the top frame, and the bottom ends of the lifting rods are fixed to the lifting frame;

[0025] Two threaded sleeves are rotatably connected to both ends of the top frame, and each threaded sleeve is threadedly connected to a corresponding lifting rod; and

[0026] A synchronous drive assembly is mounted on the top frame to drive the two screw sleeves to rotate synchronously.

[0027] In one possible implementation, based on the above technical solutions, the top frame has two through holes through which the lifting rod passes, a slide bar is vertically fixed in the through holes, and a slide groove is vertically opened on the circumference of the lifting rod, with the slide bar located in the corresponding slide groove.

[0028] In one possible implementation, based on the above technical solutions, the synchronization drive component includes:

[0029] Two worm gears are coaxially fixed to the two screw sleeves, one-to-one with each of them.

[0030] Two worm gears are rotatably mounted on the top frame and mesh with the two worm wheels in a corresponding manner.

[0031] The connecting shaft is rotatably mounted on the top frame and coaxially fixed with the two worm gears; and

[0032] A drive component, mounted on the top frame, is used to drive the connecting shaft to rotate.

[0033] In one possible implementation, based on the above technical solutions, the driving component includes:

[0034] The lifting motor is mounted on the top frame; and

[0035] A gear set is connected between the output shaft of the lifting motor and the connecting shaft; the lifting motor is used to drive the connecting shaft to rotate through the gear set.

[0036] The beneficial effects of the material leveler provided in this application are as follows: Compared with the prior art, this application can dynamically level the material by driving the vibrating plate to perform high-frequency, short-distance reciprocating sliding through the vibration component during operation. This avoids the problem of uneven distribution of large and small particles caused by the static leveling of traditional scrapers, and effectively improves the air permeability of the material. The leveling plate further flattens and compacts the material after the initial treatment by the vibrating plate, making the material surface more uniform, which helps to achieve uniform airflow distribution, improves the sintering effect, and avoids sintering quality problems caused by uneven airflow distribution.

[0037] Furthermore, the continuous lateral movement of the vibrating plate makes it difficult for adhering substances to adhere stably to the scraper surface. Even if there is temporary adhesion, it will be peeled off under the vibration, which greatly reduces the maintenance frequency and labor intensity, ensures the long-term consistency of the leveling effect, and allows the material to pass more smoothly under the scraper, reducing blockage and accumulation.

[0038] The lifting mechanism can drive the lifting frame to rise and fall, allowing the leveler to flexibly adjust the height of the vibrating plate and the leveling plate according to different production needs and material characteristics, thereby achieving efficient leveling of materials of different thicknesses and densities. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1 This is a schematic diagram of the structure of a leveling device provided in an embodiment of this application;

[0041] Figure 2 This is a schematic diagram of the structure of the vibration plate and connecting assembly provided in the embodiments of this application;

[0042] Figure 3 Vertical sectional view of the vibrating plate and vibrating assembly provided in the embodiments of this application. Figure 1 ;

[0043] Figure 4 Vertical sectional view of the vibrating plate and vibrating assembly provided in the embodiments of this application. Figure 2 .

[0044] The labels for the attached figures are as follows:

[0045] 1. Top frame;

[0046] 2. Lifting frame; 21. Vibrating plate; 22. Flat material plate;

[0047] 3. Lifting mechanism; 31. Lifting rod; 32. Screw sleeve; 33. Synchronous drive assembly; 331. Worm gear; 332. Worm; 333. Connecting shaft; 334. Drive component; 3341. Lifting motor; 3342. Gear set;

[0048] 4. Vibration assembly; 41. Drive motor; 42. Turntable; 43. Eccentric rod; 44. Limiting plate; 441. Strip hole; 45. Reinforcing spring;

[0049] 5. Connecting components; 51. Connecting plate; 52. Bolt and nut assembly. Detailed Implementation

[0050] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of this application, not all of them. The specific embodiments described herein are only used to explain this application and are not intended to limit this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] It should be further noted that the accompanying drawings and embodiments of this application mainly describe the concept of this application. Based on this concept, some specific forms and arrangements of connection relationships, positional relationships, power mechanisms, power supply systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of this application, they can implement the above-mentioned specific forms and arrangements in a well-known manner.

[0052] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0053] The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself. The terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0054] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0055] In the description of this application, "multiple" means two or more, and "several" means one or more, unless otherwise expressly and specifically defined.

[0056] The following describes a leveling device provided in this application.

[0057] like Figure 1 As shown, one embodiment of this application provides a leveling device, including a top frame 1, a lifting frame 2, a lifting mechanism 3, and a vibration assembly 4. The top frame 1 is fixed on the steel beam of the sintering machine platform; the lifting mechanism 3 is mounted on the top frame 1 and is used to drive the lifting frame 2 to rise and fall.

[0058] The lifting frame 2 is located below the top frame 1. The bottom of the lifting frame 2 is provided with a vibrating plate 21 and a flat plate 22 in sequence along the traveling direction of the trolley. The bottom of both the vibrating plate 21 and the flat plate 22 has an arc surface for flattening. The vibrating plate 21 is slidably connected to the lifting frame 2 along its own length direction, that is, the sliding direction of the vibrating plate 21 is perpendicular to the traveling direction of the trolley. The flat plate 22 is fixed to the lifting frame 2. The vibration assembly 4 is provided on the lifting frame 2 and is used to drive the vibrating plate 21 to slide back and forth.

[0059] The material leveling device provided in this embodiment, compared with the prior art, can dynamically level the material by driving the vibrating plate 21 to perform high-frequency, short-distance reciprocating sliding through the vibrating component 4 during operation. This avoids the problem of uneven distribution of large and small particles caused by the static leveling of traditional scrapers, and effectively improves the air permeability of the material. The leveling plate 22 further levels and compacts the material after the initial treatment by the vibrating plate 21, making the material surface more uniform, which helps to achieve uniform airflow distribution, improves the sintering effect, and avoids sintering quality problems caused by uneven airflow distribution.

[0060] Furthermore, the continuous lateral movement of the vibrating plate 21 makes it difficult for the adhering material to adhere stably on the scraper surface. Even if there is temporary adhesion, it will be peeled off under the vibration, which greatly reduces the maintenance frequency and labor intensity, ensures the long-term consistency of the leveling effect, and allows the material to pass more smoothly under the scraper, reducing blockage and accumulation.

[0061] The lifting mechanism 3 can drive the lifting frame 2 to rise and fall, so that the leveler can flexibly adjust the height of the vibrating plate 21 and the leveling plate 22 according to different production needs and material characteristics, thereby achieving efficient leveling of materials of different thicknesses and densities.

[0062] like Figures 2 to 4 As shown, this application provides another specific implementation method based on the above-described implementation method as follows:

[0063] The vibration assembly 4 includes a drive motor 41, a turntable 42, an eccentric rod 43, and a limiting plate 44. The drive motor 41 is vertically mounted on the lifting frame 2; the turntable 42 is located below the lifting frame 2 and is coaxially fixed with the output shaft of the drive motor 41.

[0064] The eccentric rod 43 is fixed at a non-coaxial position on the bottom surface of the turntable 42; the limiting plate 44 is set on the vibrating plate 21, and the top surface of the limiting plate 44 has a strip hole 441, the length direction of the strip hole 441 is perpendicular to the sliding direction of the vibrating plate 21, and the eccentric rod 43 is located in the strip hole 441.

[0065] When the drive motor 41 drives the turntable 42 to rotate, the eccentric rod 43 will move in a circular motion along with the turntable 42. The strip hole 441 can effectively constrain the motion trajectory of the eccentric rod 43, ensuring that the circular motion of the eccentric rod 43 can only be converted into the lateral reciprocating sliding of the vibrating plate 21, avoiding displacement in other directions.

[0066] When the eccentric rod 43 is making circular motion, it drives the limiting plate 44 and the vibrating plate 21 to slide back and forth together through the strip hole 441. The sliding distance of the vibrating plate 21 can be calculated by the distance between the eccentric rod 43 and the axis of the turntable 42. Combined with the speed of the drive motor 41, the vibrating plate 21 can achieve stable and appropriate high-frequency short-distance reciprocating sliding.

[0067] like Figures 2 to 3 As shown, this application provides another specific implementation method based on the above-described implementation method as follows:

[0068] The vibration assembly 4 also includes a reinforcing spring 45, one end of which is connected to the lifting frame 2 and the other end is connected to the vibration plate 21. The extension and retraction direction of the reinforcing spring 45 is consistent with the sliding direction of the vibration plate 21.

[0069] During the reciprocating sliding of the vibrating plate 21, the reinforcing spring 45 can store and release energy. When the vibrating plate 21 slides to one side, the reinforcing spring 45 is stretched or compressed and stores elastic potential energy. When the vibrating plate 21 returns to the original position on the other side, the reinforcing spring 45 releases elastic potential energy, providing an auxiliary driving force for the resetting of the vibrating plate 21. It can also buffer and dampen the movement of the vibrating plate 21, improving the reciprocating sliding stability of the vibrating plate 21.

[0070] like Figures 2 to 3 As shown, this application provides another specific implementation method based on the above-described implementation method as follows:

[0071] The vibrating plate 21 and the limiting plate 44 are divided into two parts along the centerline of the length direction of the strip hole 441; a connecting component 5 is provided between the two parts of the vibrating plate 21; both ends of the reinforcing spring 45 can be detachably connected to the lifting frame 2 and the vibrating plate 21.

[0072] Specifically, in this embodiment, both ends of the reinforcing spring 45 have hooks, and both the lifting frame 2 and the vibration plate 21 have fixing plates with hanging rings, and the hooks are connected to the corresponding hanging rings (not shown in the figure).

[0073] The split-type structure design solves the transportation and installation difficulties caused by the large size of the integral vibrating plate 21, reducing the difficulty of equipment transportation and on-site assembly. During installation, the two parts of the vibrating plate 21 can be installed on the lifting frame 2 respectively, and then connected by the connecting component 5, so that the eccentric rod 43 is located in the strip hole 441.

[0074] When the vibrating plate 21 is severely worn or otherwise damaged after long-term use, the fixing between the two parts of the vibrating plate 21 and the limiting plate 44 can be released by connecting component 5, and then the reinforcing spring 45 can be removed, so that the vibrating plate 21 can be maintained and replaced, which improves the maintainability of the leveler.

[0075] When the reinforcing spring 45 experiences elastic fatigue, breakage, or other failures, operators can quickly disassemble and replace it with a new reinforcing spring 45 without having to disassemble the equipment on a large scale, thus shortening the downtime for equipment maintenance and improving production efficiency.

[0076] like Figure 2 As shown, this application provides another specific implementation method based on the above-described implementation method as follows:

[0077] The connecting assembly 5 includes multiple sets of connecting plates 51 and multiple sets of bolt and nut groups 52. Each set of connecting plates 51 is paired and fixed to two parts of the vibrating plate 21 respectively; the multiple sets of bolt and nut groups 52 correspond one-to-one with each set of connecting plates 51, and the bolts pass through two connecting plates 51 and are then tightened with the threads of the nuts. In this embodiment, an operating port is provided on the lifting frame 2.

[0078] The connecting plate 51 increases the connection area between the two vibrating plates 21, improving connection stability. The bolt and nut assembly 52 makes the connection adjustable; during installation, the tightness of the connection between the two vibrating plates 21 can be adjusted by tightening or loosening the nuts, ensuring that the vibrating plates 21 do not loosen or shift during operation. When maintaining or replacing the vibrating plates 21, simply loosening the bolt and nut assembly 52 allows for easy separation of the two vibrating plates 21, improving maintenance efficiency and reducing maintenance costs.

[0079] The distributed arrangement of multiple sets of connecting plates 51 and bolt and nut groups 52 makes the force on the two parts of the vibrating plate 21 more uniform, avoids problems such as deformation and breakage of the connecting plate 51 caused by local stress concentration, extends the service life of the connecting components 5, and further improves the structural reliability of the leveler.

[0080] like Figures 1 to 3As shown, this application provides another specific implementation method based on the above-described implementation method as follows:

[0081] The bottom surface of the lifting frame 2 has two guide grooves along the sliding direction of the vibration plate 21. The guide grooves are open at both ends. The top of the two vibration plates 21 are fixed to guide strips for inserting into the corresponding guide grooves. The cross-section of the guide grooves and guide strips is T-shaped.

[0082] The guide groove and guide bar provide precise guidance for the sliding of the vibrating plate 21. The T-shaped cross-section design makes the guide bar more stable when sliding in the guide groove, and it is not easy to derail. This ensures that the vibrating plate 21 always maintains a straight line during the reciprocating sliding process, avoids the deviation and shaking of the vibrating plate 21, and improves the accuracy and stability of the movement of the vibrating plate 21.

[0083] The guide groove has openings at both ends, allowing the guide strip to be freely installed and removed from both ends of the guide groove. This makes it easy for operators to remove the vibrating plate 21 from the lifting frame 2 for maintenance and replacement, further improving the ease of operation and maintenance of the equipment.

[0084] like Figure 1 As shown, this application provides another specific implementation method based on the above-described implementation method as follows:

[0085] The lifting mechanism 3 includes two lifting rods 31, two threaded sleeves 32, and a synchronous drive assembly 33. The two lifting rods 31 are vertically slidably mounted at both ends of the top frame 1, and the bottom ends of the lifting rods 31 are fixed to the lifting frame 2. The two threaded sleeves 32 are rotatably connected to both ends of the top frame 1, and the threaded sleeves 32 are threadedly connected to the lifting rods 31 in a one-to-one correspondence. The synchronous drive assembly 33 is mounted on the top frame 1 and is used to drive the two threaded sleeves 32 to rotate synchronously.

[0086] The synchronous drive assembly 33 drives the two screw sleeves 32 to rotate synchronously, enabling the two lifting rods 31 to drive the lifting frame 2 to move synchronously, ensuring the balance and stability of the lifting frame 2 during the lifting process. Furthermore, the screw drive lifting has higher precision, allowing for fine-tuning of the height of the lifting frame 2. This allows operators to precisely adjust the distance between the leveling plate 22, the vibrating plate 21, and the material surface according to the material thickness, further optimizing the leveling quality. Simultaneously, the screw drive has a self-locking characteristic; when the synchronous drive assembly 33 stops working, the threaded engagement between the screw sleeves 32 and the lifting rods 31 prevents the lifting frame 2 from sliding down due to its own weight or material impact, ensuring the operational safety of the equipment.

[0087] like Figure 1 As shown, this application provides another specific implementation method based on the above-described implementation method as follows:

[0088] The top frame 1 has two through holes through which the lifting rod 31 passes. A slide bar is vertically fixed in the through holes. A slide groove is vertically opened on the circumference of the lifting rod 31, and the slide bar is located in the corresponding slide groove.

[0089] The cooperation between the slider and the groove further guides and stabilizes the movement of the lifting rod 31, providing precise guidance for the lifting and lowering movement of the lifting rod 31, limiting the rotational freedom of the lifting rod 31, and ensuring that the lifting rod 31 always maintains linear movement during vertical sliding, thus avoiding swaying and deviation of the lifting rod 31.

[0090] like Figure 1 As shown, this application provides another specific implementation method based on the above-described implementation method as follows:

[0091] The synchronous drive assembly 33 includes two worm gears 331, two worms 332, a connecting shaft 333, and a set of drive components 334. The two worm gears 331 correspond one-to-one with the two threaded sleeves 32 and are coaxially fixed; the two worms 332 are rotatably mounted on the top frame 1 and mesh with the two worm gears 331 in a corresponding manner; the connecting shaft 333 is rotatably mounted on the top frame 1 and coaxially fixed with the two worms 332; the drive components 334 are mounted on the top frame 1 and are used to drive the connecting shaft 333 to rotate.

[0092] The worm gear 331 and worm 332 transmission can achieve a large transmission ratio, enabling the drive component 334 to rotate the screw sleeve 32 with a small torque, reducing the power requirement of the drive component 334 and saving energy. At the same time, the worm gear 331 and worm 332 transmission has a self-locking function, which can prevent the screw sleeve 32 from rotating on its own due to external forces when the equipment is not running, thus ensuring the positional stability of the lifting frame 2.

[0093] The connection shaft 333 enables the two worm gears 332 to rotate synchronously, thereby driving the two worm wheels 331 and the screw sleeve 32 to rotate synchronously, ensuring the balance and stability of the lifting frame 2 during the lifting process, and avoiding the problem of poor material leveling effect caused by uneven lifting.

[0094] like Figure 1 As shown, this application provides another specific implementation method based on the above-described implementation method as follows:

[0095] The drive unit 334 includes a lifting motor 3341 and a gear set 3342. The lifting motor 3341 is mounted on the top frame 1; the gear set 3342 is connected between the output shaft of the lifting motor 3341 and the connecting shaft 333; the lifting motor 3341 is used to drive the connecting shaft 333 to rotate through the gear set 3342.

[0096] The lifting motor 3341 drives the connecting shaft 333 to rotate via the gear set 3342. The transmission ratio can be flexibly adjusted according to actual needs, achieving both speed reduction and torque increase, ensuring that the power output of the lifting motor 3341 is sufficient to drive the lifting frame 2, the vibrating plate 21, and the flat plate 22. It can also adjust the lifting speed of the lifting frame 2 to adapt to different production rhythms. Simultaneously, the gear set 3342 has high transmission efficiency and a compact structure, enabling stable power transmission within limited installation space and ensuring the operational stability of the lifting mechanism 3.

[0097] Specifically, in this embodiment, a protective cover can be provided on the top frame 1 to cover the transmission structure such as the gear set 3342, worm gear 331 and worm 332.

[0098] In summary, the leveler of this application solves the problems of poor leveling effect, uneven airflow distribution, and easy material adhesion to the scraper in the prior art, significantly improving the leveling effect and subsequent sintering quality, and has good economic benefits and application prospects.

[0099] The above are merely preferred embodiments of this application and are not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

[0100] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0101] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

Claims

1. A spreader, characterized in that include: The top frame (1) is fixed on the steel beam of the sintering machine platform; A lifting frame (2) is located below the top frame (1). The bottom of the lifting frame (2) is provided with a vibrating plate (21) and a flat plate (22) in sequence along the traveling direction of the trolley. The bottom of the vibrating plate (21) and the flat plate (22) both have an arc surface for flattening. The vibrating plate (21) is slidably connected to the lifting frame (2) in the lateral direction, and the flat plate (22) is fixed to the lifting frame (2). A lifting mechanism (3) is mounted on the top frame (1) and is used to drive the lifting frame (2) to rise and fall; and The vibration assembly (4) is mounted on the lifting frame (2) and is used to drive the vibration plate (21) to slide back and forth. The vibration component (4) includes: The drive motor (41) is vertically mounted on the lifting frame (2); A turntable (42) is located below the lifting frame (2) and is fixed coaxially with the output shaft of the drive motor (41); An eccentric rod (43) is fixed at a non-coaxial position on the bottom surface of the turntable (42); and A limiting plate (44) is provided on the vibrating plate (21). A strip hole (441) is provided on the top surface of the limiting plate (44). The length direction of the strip hole (441) is perpendicular to the sliding direction of the vibrating plate (21). The eccentric rod (43) is located inside the strip hole (441). The vibration assembly (4) also includes: A reinforcing spring (45) is connected at one end to the lifting frame (2) and at the other end to the vibrating plate (21). The extension and retraction direction of the reinforcing spring (45) is consistent with the sliding direction of the vibrating plate (21). The vibrating plate (21) and the limiting plate (44) are divided into two parts along the centerline of the length direction of the strip hole (441); a connecting assembly (5) is provided between the two parts of the vibrating plate (21); both ends of the reinforcing spring (45) can be detachably connected to the lifting frame (2) and the vibrating plate (21). The connection component (5) includes: Multiple sets of connecting plates (51), each set of connecting plates (51) being opposite each other and respectively fixed to the two parts of the vibrating plate (21); and Multiple sets of bolt and nut groups (52) correspond one-to-one with each set of connecting plates (51). The bolts pass through the two connecting plates (51) and are then threaded onto the nuts. The bottom surface of the lifting frame (2) is provided with two guide grooves along the sliding direction of the vibration plate (21). The guide grooves are open at both ends. The top of both parts of the vibration plate (21) is fixed with guide strips for inserting into the corresponding guide grooves. The cross-sections of the guide grooves and the guide strips are T-shaped.

2. A screed as claimed in claim 1 wherein, The lifting mechanism (3) includes: Two lifting rods (31) are vertically slidably disposed at both ends of the top frame (1), and the bottom end of the lifting rods (31) is fixed to the lifting frame (2). Two threaded sleeves (32) are rotatably connected to both ends of the top frame (1), and the threaded sleeves (32) are threadedly connected to the lifting rods (31) in a one-to-one correspondence; and A synchronous drive assembly (33) is mounted on the top frame (1) and is used to drive the two screw sleeves (32) to rotate synchronously.

3. A screed as claimed in claim 2 wherein, The top frame (1) has two through holes through which the lifting rod (31) passes. A slide bar is vertically fixed in the through hole. A slide groove is vertically opened on the circumference of the lifting rod (31), and the slide bar is located in the corresponding slide groove.

4. A screed as claimed in claim 2 wherein, The synchronous drive component (33) includes: Two worm gears (331) correspond one-to-one with the two threaded sleeves (32) and are coaxially fixed; Two worm gears (332) are rotatably mounted on the top frame (1) and mesh with the two worm wheels (331) in a one-to-one correspondence; The connecting shaft (333) is rotatably mounted on the top frame (1) and coaxially fixed with the two worm gears (332); and A drive unit (334) is mounted on the top frame (1) and is used to drive the connecting shaft (333) to rotate.

5. A leveling device as described in claim 4, characterized in that, The drive unit (334) includes: A lifting motor (3341) is mounted on the top frame (1); and A gear set (3342) is connected between the output shaft of the lifting motor (3341) and the connecting shaft (333); the lifting motor (3341) is used to drive the connecting shaft (333) to rotate through the gear set (3342).

Images