Leveling device
Patent Information
- Application Number
- CN202611245597.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-08-17
- Publication Date
- 2026-10-13
AI Technical Summary
[0004]为解决上述技术问题,本发明提供一种平料装置,旨在至少能够在一定程度上解决依赖人工用钉耙对敞口车厢内的散装物料进行平料处理,导致劳动强度大以及作业条件恶劣的技术问题
由于平料车可移动式地设于两个行驶轨道,平料组件设于平料车内,沿行驶轨道的长度方向,平料组件可摆动式地与平料车连接,推动件设于平料车内,推动件一端与平料组件铰接,另一端与平料车的内壁铰接,两个火车轨道位于两个行驶轨道之间,因此,当要对敞口车厢内的物料进行平整时,此时,敞口车厢在火车轨道上静止,平料车在两个行驶轨道上行驶,在平料车到达敞口车厢之前,在推动件的作用下,平料组件在平料车内摆动,以使得平料组件底部的高度高于敞口车厢顶部的高度,以避免平料组件与敞口车厢发生碰撞,保证平料车运行的稳定性,平料车继续在行驶轨道上行驶,以使得平料车带动平料组件到达敞口车厢的上方,平料组件在平料车内摆动,以使得平料组件进入敞口车厢内,平料车继续在行驶轨道上行驶,以带动平料组件在敞口车厢内沿行驶轨道的长度方向动作,同时,平料组件对敞口车厢内的散装物料进行平整,使物料在敞口车厢内均匀分布,可最大化利用敞口车厢的容积,避免“空载空间”浪费,同时确保轴重分布合理,符合铁路安全载重规范,提升装载均匀性与运载效率,防止敞口车厢内物料偏移,减少敞口车厢侧翻风险,保证了敞口车厢的稳定运行,而且,可以降低人工操作的工作量,提升作业安全性和效率,降低了劳动强度。
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Figure CN122897244A_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of rail transportation technology, specifically relating to a material leveling device. Background Technology
[0002] Material handling in alumina plants is a critical issue in production. In China, open freight wagons are typically used for transporting bulk materials. In the loading bay, the open wagons of empty trains are pushed to the loading position by the locomotive. The materials in the stockpile are grabbed by the grab buckets and then placed into the open wagons. The loaded materials usually form multiple irregular cones inside the wagons. Due to the uneven accumulation of materials, the overall center of gravity of the wagons becomes unbalanced. During train operation, especially when passing through curves, centrifugal force can cause the materials to slide to one side, resulting in a shift in the center of gravity of the wagons and increasing the risk of train derailment or overturning.
[0003] To prevent materials from shifting inside the wagon and reduce the risk of tipping over, it is necessary to level the bulk materials inside the open wagon. Related technologies rely on manual labor using rakes to level the bulk materials inside the open wagon, resulting in high labor intensity and harsh working conditions (open-air, dusty, high / low temperature). Summary of the Invention
[0004] To address the aforementioned technical problems, this invention provides a material leveling device, which aims to at least partially solve the technical problem of relying on manual labor with rakes to level bulk materials in open wagons, resulting in high labor intensity and harsh working conditions.
[0005] The technical solution of this invention is as follows: A leveling device is disclosed for leveling materials inside an open wagon, the open wagon being movably mounted on two train tracks. The leveling device includes: two running tracks; a leveling car movably mounted on the two running tracks; a leveling assembly disposed within the leveling car and pivotally connected to the leveling car along the length of the running tracks; and a pushing member disposed within the leveling car, one end of the pushing member being hinged to the leveling assembly and the other end being hinged to the inner wall of the leveling car; wherein the two train tracks are located between the two running tracks.
[0006] In some implementations, the flatbed cart includes: a cart body; two sets of traveling components connected to the cart body, wherein the two traveling components correspond one-to-one with the two traveling tracks, and the traveling components are movably disposed on the corresponding traveling tracks.
[0007] In some embodiments, the walking assembly includes two walking components arranged at intervals along the length of the travel track. Each walking component includes: a first driver connected to the vehicle body; and a walking wheel connected to the first driver and rotatably mounted on the travel track.
[0008] In some embodiments, the vehicle body includes: two support frames, spaced apart and corresponding one-to-one with the two traveling components, the support frames being connected to the corresponding traveling components; two first connectors, each angled to the top of the two support frames, spaced apart along the length of the travel track; and a support member, connected to the top of the two support frames and located between the two first connectors; wherein, along the length of the travel track, the flat material assembly is swayably connected to the support member.
[0009] In some embodiments, the support component includes: a first support member connected to the top of the two support frames and located between the two first connectors; a support base disposed on the first support member; and a pivot connected to the top of the support base and the flat assembly; wherein the support base is located in the middle of the first support member.
[0010] In some embodiments, the support frame includes: two second support members spaced apart along the length of the travel track, the second support members being connected to the first connector; and at least one second connector extending along the length of the travel track and connected to the two second support members, the second connector being connected to the support member.
[0011] In some embodiments, the support frame further includes two reinforcing members that are staggered and connected to the two second support members.
[0012] In some embodiments, the leveling assembly includes: a third connector disposed inside the leveling cart along the length of the travel track, the leveling assembly being oscillatingly connected to the leveling cart, the third connector being hinged to the pusher; and a leveling component disposed inside the leveling cart and connected to the third connector.
[0013] In some embodiments, the flat material component includes: a carrier, disposed inside the flat material cart and connected to the third connecting member; two second drivers, disposed on the carrier, with the third connecting member located between the two second drivers; and two helical blades, rotatably disposed on the carrier, each helical blade corresponding to one of the two second drivers, and each helical blade connected to its corresponding second driver; wherein the two helical blades rotate in opposite directions.
[0014] In some embodiments, the pusher includes: a pusher portion hinged to the vehicle body; and a connecting portion, one end of which is connected to the pusher portion and the other end of which is hinged to the flat material assembly.
[0015] The beneficial effects of the present invention include at least the following: Because the leveling car is movably mounted on two travel tracks, and the leveling assembly is located inside the car, it can swing and connect to the car along the length of the travel tracks. A pusher is located inside the car, with one end hinged to the leveling assembly and the other end hinged to the inner wall of the car. The two train tracks are located between the two travel tracks. Therefore, when leveling the material in the open car, the open car is stationary on the train tracks, while the leveling car travels on the two travel tracks. Before reaching the open car, the leveling assembly swings within the car under the action of the pusher, ensuring that the bottom of the leveling assembly is higher than the top of the open car. This prevents collisions and ensures the stability of the leveling car's operation. The leveling car then continues to travel on the travel tracks. This system allows the leveling car to carry the leveling assembly to the top of the open car. The leveling assembly swings inside the leveling car to enter the open car. The leveling car continues to travel on the track, causing the leveling assembly to move along the length of the track within the open car. Simultaneously, the leveling assembly levels the bulk materials inside the open car, ensuring even distribution of the materials. This maximizes the utilization of the open car's volume, avoids wasting "empty space," ensures reasonable axle load distribution, complies with railway safety load specifications, improves loading uniformity and transport efficiency, prevents material shifting within the open car, reduces the risk of tipping over, and guarantees stable operation of the open car. Furthermore, it reduces the workload of manual operation, improves operational safety and efficiency, and reduces labor intensity.
[0016] After the leveling assembly has finished leveling the material in the open car, the leveling car travels on the track to the rear of the open car. Under the action of the pusher, the leveling assembly swings inside the leveling car so that the bottom of the leveling assembly is higher than the top of the open car, so that the leveling assembly can leave the open car. The leveling car continues to travel on the track so that the leveling assembly can level the material in the next open car.
[0017] Furthermore, since the pushing component is located inside the leveling car, it drives the leveling assembly to swing, thereby changing the height of the bottom of the leveling assembly. Therefore, it is unnecessary to install a drive component on the top of the leveling car, avoiding encroachment on the space above the leveling car. This ensures that the height of the leveling car meets the height restrictions of the factory building, allowing the leveling car to operate smoothly. Simultaneously, the pushing component can adjust the swing angle of the leveling assembly according to the height of the material in the open car, thereby adjusting the distance between the bottom of the leveling assembly and the material in the open car, allowing the leveling assembly to level the material in the open car. Attached Figure Description
[0018] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0019] Figure 1 These are schematic diagrams of the material leveling device in some embodiments; Figure 2 for Figure 1 Schematic diagram of the movement of the leveling device; Figure 3 for Figure 1 Top view of the leveling device; Figure 4 for Figure 1 Side view of the leveling device; Figure 5 for Figure 1 Front view of the leveling device.
[0020] In the attached image: 10 open-top carriages; Train track 20; Track 30; Flat material cart 40, cart body 41, support frame 411, second support member 4111, second connecting member 4112, reinforcing member 4113, first connecting member 412, support component 413, first support member 4131, support seat 4132, rotating shaft 4133, walking assembly 42, walking component 421, first driver 4211, walking wheel 4212; Flat material assembly 50, third connector 51, flat material component 52, bearing component 521, second driver 522, spiral blade 523; Pushing component 60, pushing part 61, connecting part 62. Detailed Implementation
[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0022] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.
[0023] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.
[0024] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.
[0025] Specific technical solutions will now be described in detail with reference to the accompanying drawings, which are not necessarily drawn to scale. Similar or identical reference numerals may be used to designate the same or similar parts in different figures. The use of similar or identical reference numerals in different figures does not mean that all figures including similar or identical reference numerals constitute a single or the same embodiment. The accompanying drawings illustrate the various embodiments discussed in this application in a generalized, illustrative, and not restrictive manner.
[0026] Combination Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5This application embodiment describes a leveling device for leveling materials within an open carriage 10. The open carriage 10 is movably mounted on two train tracks 20. The leveling device includes: a running track 30, a leveling cart 40, a leveling assembly 50, and a pushing member 60. The leveling cart 40 is movably mounted on the two running tracks 30. The leveling assembly 50 is located within the leveling cart 40 and is sway-connected to the leveling cart 40 along the length of the running track 30. The pushing member 60 is located within the leveling cart 40, with one end hinged to the leveling assembly 50 and the other end hinged to the inner wall of the leveling cart 40. The two train tracks 20 are located between the two running tracks 30, such that the open carriage 10 is positioned between the two running tracks 30.
[0027] Train track 20 is parallel to running track 30.
[0028] Because the leveling car 40 is movably mounted on two travel tracks 30, and the leveling assembly 50 is located inside the leveling car 40, the leveling assembly 50 is swayably connected to the leveling car 40 along the length of the travel tracks 30. A pushing member 60 is located inside the leveling car 40, with one end hinged to the leveling assembly 50 and the other end hinged to the inner wall of the leveling car 40. The two train tracks 20 are located between the two travel tracks 30. Therefore, when materials need to be moved into the open car 10... During leveling, the open carriage 10 is stationary on the train track 20, while the leveling car 40 travels on the two tracks 30. Before the leveling car 40 reaches the open carriage 10, the leveling assembly 50 swings within the leveling car 40 under the action of the pusher 60, ensuring that the bottom of the leveling assembly 50 is higher than the top of the open carriage 10. This prevents the leveling assembly 50 from colliding with the open carriage 10 and ensures the stability of the leveling car 40's operation. The leveling car 40 then... The material leveling car 40 continues to travel on the track 30, allowing the leveling component 50 to reach the top of the open car 10. The leveling component 50 swings within the leveling car 40, allowing it to enter the open car 10. The leveling car 40 continues to travel on the track 30, causing the leveling component 50 to move along the length of the track 30 within the open car 10. Simultaneously, the leveling component 50 levels the bulk materials within the open car 10, ensuring even distribution of the materials. This maximizes the utilization of the open car 10's volume, avoids wasting "empty space," ensures reasonable axle load distribution, complies with railway safety load specifications, improves loading uniformity and transport efficiency, prevents material shifting within the open car 10, reduces the risk of the open car 10 tipping over, and guarantees stable operation of the open car 10. Furthermore, it reduces the workload of manual operation, improves operational safety and efficiency, and reduces labor intensity.
[0029] After the leveling component 50 has finished leveling the material in the open car 10, the leveling car 40 travels on the travel track 30 to the rear of the open car 10. Under the action of the pusher 60, the leveling component 50 swings inside the leveling car 40 so that the bottom of the leveling component 50 is higher than the top of the open car 10, so that the leveling component 50 can leave the open car 10. The leveling car 40 continues to travel on the travel track 30 so that the leveling component 50 can level the material in the next open car 10.
[0030] Furthermore, since the pusher 60 is located inside the leveling cart 40, and the leveling assembly 50 is oscillating via the pusher 60 to change the height of the bottom of the leveling assembly 50, it is unnecessary to install a drive component on the top of the leveling cart 40. This avoids encroaching on the space at the top of the leveling cart 40, ensuring that the height of the leveling cart 40 meets the height restrictions of the factory building and allowing the leveling cart 40 to operate smoothly. Simultaneously, the oscillation angle of the leveling assembly 50 can be adjusted via the pusher 60 according to the height of the material inside the open carriage 10, thereby adjusting the distance between the bottom of the leveling assembly 50 and the material inside the open carriage 10, enabling the leveling assembly 50 to level the material inside the open carriage 10.
[0031] Combination Figure 3 , Figure 4 and Figure 5 In some embodiments, the flatbed cart 40 includes a cart body 41 and a traveling assembly 42. Two sets of traveling assemblies 42 are connected to the cart body 41, and the two traveling assemblies 42 correspond one-to-one with two travel tracks 30. The traveling assemblies 42 are movably disposed on the corresponding travel tracks 30, and the cart body 41 is moved on the travel tracks 30 by traveling on the travel tracks 30.
[0032] Combination Figure 3 , Figure 4 and Figure 5 In some embodiments, the walking assembly 42 includes two walking members 421, which are spaced apart along the length of the travel track 30 to ensure the stability of the vehicle body 41 supported by the walking members 421. Each walking member 421 includes a first driver 4211 and a walking wheel 4212. The first driver 4211 is connected to the vehicle body 41. The walking wheel 4212 is connected to the first driver 4211 and is rotatably mounted on the travel track 30. The first driver 4211 drives the walking wheel 4212 to rotate on the travel track 30, thereby enabling the vehicle body 41 to move on the travel track 30. For example, the first driver 4211 can be a motor.
[0033] Combination Figure 3 , Figure 4 and Figure 5In some embodiments, the vehicle body 41 includes: a support frame 411, a first connecting member 412, and a support component 413. Two support frames 411 are spaced apart and correspond one-to-one with two traveling components 42. The support frame 411 is connected to the corresponding traveling component 42, and the traveling component 42 supports the corresponding support frame 411. Two first connecting members 412 are respectively angled and connected to the tops of the two support frames 411. Along the length direction of the travel track 30, the two first connecting members 412 are spaced apart to connect the two support frames 411. The support component 413 is connected to the tops of the two support frames 411 and is located between the two first connecting members 412. Along the length direction of the travel track 30, a flat material assembly 50 is swayably connected to the support component 413, and the support component 413 carries the flat material assembly 50. For example, the length of the first connecting member 412 is greater than the width of the open-top vehicle body 10.
[0034] Combination Figure 4 and Figure 5 In some embodiments, to enable the flattening assembly 50 to be oscillatingly connected to the support member 413, the support member 413 includes: a first support member 4131, a support base 4132, and a rotating shaft 4133. The first support member 4131 is connected to the top of two support frames 411 and is located between two first connecting members 412. The support base 4132 is disposed on the first support member 4131 and supports the support base 4132 through the first support member 4131. The rotating shaft 4133 is connected to the support base 4132 and the top of the flattening assembly 50, and the flattening assembly 50 can rotate relative to the support base 4132 through the rotating shaft 5133, so that the flattening assembly 50 can oscillate. The support base 4132 is located in the middle of the first support member 4131 to facilitate the arrangement of the flattening assembly 50.
[0035] Combination Figure 3 , Figure 4 and Figure 5 In some embodiments, the support frame 411 includes a second support member 4111 and a second connector 4112. Two second support members 4111 are spaced apart along the length of the travel track 30, and the second support members 4111 are connected to the first connector 412. At least one second connector 4112 extends along the length of the travel track 30 and is connected to the two second support members 4111. The second support members 4111 support the second connector 4112, and the second connector 4112 is connected to a support member 413, thus supporting the support member 413.
[0036] Combination Figure 4In some embodiments, the support frame 411 further includes two reinforcing members 4113. The two reinforcing members 4113 are staggered and connected to the two second supporting members 4111 to ensure the structural strength of the support frame 411. For example, the two reinforcing members 4113 are arranged in an X-shape.
[0037] Combination Figure 5 In some embodiments, the leveling assembly 50 includes a third connector 51 and a leveling component 52. The third connector 51 is disposed within the leveling carriage 40 along the length of the travel track 30, and the leveling assembly 50 is pivotally connected to the leveling carriage 40. The third connector 51 is hinged to the pusher 60. The leveling component 52 is disposed within the leveling carriage 40 and connected to the third connector 51.
[0038] The pusher 60 drives the third connector 51 to move, and the third connector 51 swings inside the flat material carriage 40, thereby driving the flat material 41 to swing.
[0039] Combination Figure 5 In some embodiments, the flattening component 52 includes a carrier 521, a second actuator 522, and a spiral blade 523. The carrier 521 is disposed within the flattening cart 40 and connected to a third connecting member 51. Two second actuators 522 are disposed on the carrier 521, and the third connecting member 51 is located between the two second actuators 522, supporting the two second actuators 522 via the carrier 521. Two spiral blades 523 are rotatably disposed on the carrier 521, each corresponding to one of the two second actuators 522. The spiral blades 523 are connected to their corresponding second actuators 522, and are driven to rotate by the second actuators 522. The two spiral blades 523 rotate in opposite directions, pushing the material in the open cart 10 from the center towards both sides of the open cart 10. For example, the second actuator 522 can be a motor.
[0040] Combination Figure 4 In some embodiments, the pusher 60 includes a pusher portion 61 and a connecting portion 62. The pusher portion 61 is hinged to the vehicle body 41. One end of the connecting portion 62 is connected to the pusher portion 61, and the other end is hinged to the leveling assembly 50. The pusher portion 61 can drive the leveling assembly 50 within the leveling carriage 40 via the connecting portion 62. Exemplarily, the pusher portion 61 can be a cylinder, a hydraulic cylinder, or an electric push rod.
[0041] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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.
[0042] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.
[0044] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.
[0045] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.
Claims
1. A material leveling device, characterized in that, A device for leveling materials inside an open wagon, the open wagon being movably mounted on two railway tracks, the leveling device comprising: Two tracks; The flatbed cart is movable and positioned on the two aforementioned travel tracks; A leveling assembly is disposed inside the leveling cart and is oscillatingly connected to the leveling cart along the length of the travel track. A pusher is provided inside the flattening cart. One end of the pusher is hinged to the flattening assembly, and the other end is hinged to the inner wall of the flattening cart. The two train tracks are located between the two running tracks.
2. The leveling device according to claim 1, characterized in that, The flatbed cart includes: Vehicle body; Two sets of walking components are connected to the vehicle body. The two walking components correspond one-to-one with the two travel tracks. The walking components are movably mounted on the corresponding travel tracks.
3. The leveling device according to claim 2, characterized in that, The traveling assembly includes two traveling components, which are spaced apart along the length of the traveling track. Each traveling component includes: A first drive unit is connected to the vehicle body; The traveling wheels are connected to the first drive and are rotatably mounted on the travel track.
4. The leveling device according to claim 2, characterized in that, The vehicle body includes: Two support frames are spaced apart and correspond one-to-one with the two walking components, and the support frames are connected to the corresponding walking components; Two first connectors are respectively connected at an angle to the top of the two support frames, and the two first connectors are spaced apart along the length of the travel track; A support component is connected to the top of the two support frames and is located between the two first connectors; Along the length of the travel track, the flat material assembly is oscillatingly connected to the support component.
5. The leveling device according to claim 4, characterized in that, The supporting component includes: A first support member is connected to the top of the two support frames and is located between the two first connectors; A support base is provided on the first support member; The pivot is connected to the top of the support base and the flat assembly; The support base is located in the middle of the first support member.
6. The leveling device according to claim 4, characterized in that, The support frame includes: Two second support members are spaced apart along the length of the travel track, and the second support members are connected to the first connecting member; At least one second connector extends along the length of the travel track and is connected to two second supports, the second connectors being connected to the support components.
7. The leveling device according to claim 6, characterized in that, The support frame also includes: Two reinforcing members are connected in an alternating manner, and the reinforcing members are connected to the two second supporting members.
8. The leveling device according to any one of claims 1-7, characterized in that, The flat material assembly includes: The third connecting member is located inside the flat material cart and along the length of the travel track. The flat material assembly is oscillatingly connected to the flat material cart, and the third connecting member is hinged to the pusher. A flat material component is disposed inside the flat material carriage and connected to the third connecting component.
9. The leveling device according to claim 8, characterized in that, The flat material includes: The support component is located inside the flat material cart and is connected to the third connecting component; Two second actuators are disposed on the carrier, and the third connector is located between the two second actuators; Two helical blades are rotatably mounted on the carrier, and the two helical blades correspond one-to-one with the two second drivers. The helical blades are connected to the corresponding second drivers. The two helical blades rotate in opposite directions.
10. The leveling device according to any one of claims 1-7, characterized in that, The pushing component includes: The propulsion unit is hinged to the vehicle body; The connecting part is connected to the pushing part at one end and hinged to the flat material assembly at the other end.