A high liquid limit powder spreading treatment device

Abstract

This utility model discloses a high liquid limit powder spreading and processing device, including a dump truck. The dump truck's bed contains: a conveying device, the output end of which is driven and connected to a screw distributor via a transmission mechanism; a screening device, located between the feed chute and the conveying device, comprising a supporting screen plate and two opposing movable screen plates. The supporting screen plate is fixed to the conveying device via a connecting frame, and one end of each movable screen plate is hinged to the side of the supporting screen plate, while the other end is connected to the supporting screen plate via a driving device; an adjusting device is located at the top of the conveying device's output end for adjusting the conveying device's output; and a screw distributor is fixedly connected to the dump truck's bed via a connecting plate, with a dustproof cloth on its side. This utility model, through the swinging motion of the movable screen plates and the cooperation of the supporting screen plates, can effectively break up agglomerated high liquid limit powder, resulting in uniformly distributed powder particles after screening, improving spreading quality and ensuring project quality.

Description

Technical fields:

[0001] This utility model relates to the field of spreading and processing technology, specifically to a high liquid limit powder spreading and processing device. Background technology:

[0002] High liquid limit powder is a special building material with high moisture content and a tendency to clump, widely used in engineering fields such as road base stabilization. In actual construction, high liquid limit powder needs to be evenly spread onto the work surface. Due to its inherent characteristics, high liquid limit powder is prone to clumping, and traditional equipment lacks an effective dispersing and screening mechanism, resulting in uneven particle distribution after spreading, affecting project quality. Furthermore, the powder conveying rate is mostly fixed or manually adjusted, making it difficult to control accurately in real time according to construction needs, easily leading to material waste or insufficient spreading. Utility Model Content:

[0003] To address this issue, this utility model provides a high liquid limit powder spreading and processing device to overcome the problems of high liquid limit powders being prone to agglomeration due to their inherent characteristics, traditional equipment lacking an effective dispersing and screening mechanism, resulting in uneven particle distribution after spreading, affecting project quality, and the powder conveying volume being mostly fixed or manually adjustable, making it difficult to control accurately in real time according to construction needs, easily leading to material waste or insufficient spreading.

[0004] This utility model is implemented by the following technical solution:

[0005] A high liquid limit powder spreading and processing device includes a dump truck. The dump truck's bed contains: a conveying device, the output end of which is driven and connected to a screw distributor via a transmission mechanism; a screening device, located between the feed chute and the conveying device, the screening device including a supporting screen plate and two opposing movable screen plates, the supporting screen plate being fixed to the conveying device via a connecting frame, one end of each movable screen plate being hinged to the side of the supporting screen plate, and the other end being connected to the supporting screen plate via a driving device; an adjusting device located at the top of the conveying device's output end for adjusting the conveying device's output; and a screw distributor fixedly connected to the dump truck's bed via a connecting plate, with a dustproof cloth provided on its side.

[0006] Preferably, the conveying device includes a belt conveyor, the driven end of which is rotatably connected to the inside of the dump truck bed via a rotating shaft and bearings, the driving end of which is connected to a drive motor via a first chain drive device, the drive motor being fixed inside the dump truck bed by a bracket, and the other side of the driving end of the belt conveyor extending out of the dump truck bed and being connected to the drive end of the screw distributor via a second chain drive device.

[0007] Preferably, the inner side of the feed trough has an inclined structure to guide the powder to slide to the screening device.

[0008] Preferably, the driving device includes an electric push rod, the fixed end of which is hinged to the supporting screen plate, and the output end is hinged to the movable screen plate through a fixed frame.

[0009] Preferably, the adjusting device includes a fixed plate, both sides of which are slidably connected to the truck bed via sliding components. The sliding components include a sliding plate, a sliding groove, and a toothed plate fixed to the sliding plate. The toothed plate meshes with a gear. The gear is connected to a motor via a rotating shaft and a third chain transmission device. The motor is fixed to the truck bed of the dump truck via a bracket and drives the gear to rotate via the third chain transmission device, thereby causing the fixed plate to slide along the sliding groove.

[0010] Preferably, the first chain drive device, the second chain drive device, and the third chain drive device all include a driving sprocket, a driven sprocket, and a drive chain.

[0011] Preferably, the spiral distributor is a spiral conveying mechanism that receives the power output of the conveying device through the transmission mechanism, and the dustproof cloth covers the side of the spiral distributor to form a dustproof barrier.

[0012] The advantages of this invention are: the swing of the movable sieve plate and the cooperation of the supporting sieve plate can effectively break up the agglomeration of high liquid limit powder, and the powder particles after screening are evenly distributed, which improves the spreading quality and ensures the quality of the project. In addition, the stepless sliding of the fixed plate can be achieved by the adjustment device through gear and toothed plate transmission, which can control the opening of the channel at the output end of the conveying device in real time and thus adjust the powder output. It can adapt well to different construction needs and avoid material waste or insufficient spreading. Attached image description:

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, 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 utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure described in this utility model;

[0015] Figure 2 This is a cross-sectional view of the structure described in this utility model.

[0016] In the diagram: 1. Dump truck; 2. Feed chute; 3. Conveying device; 4. Support screen plate; 5. Movable screen plate; 6. Drive mechanism; 7. Screw distributor; 8. Dustproof cloth; 9. Adjusting device. Detailed implementation method:

[0017] 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.

[0018] like Figure 1 , Figure 2 As shown, a high liquid limit powder spreading and processing device includes a dump truck 1. The dump truck 1 has an integrated feeding trough 2, a conveying device 3, a screening device, a screw distributor 7, a dustproof cloth 8, and an adjusting device 9 in its truck bed.

[0019] Feed chute 2: Fixed inside the dump truck 1, its inner side is set with a slope, and the tilt angle can be designed to be 30° to 60° as needed, so that the high liquid limit powder can slide to the screening device under the action of gravity and avoid the accumulation of powder.

[0020] Screening device: Located between the feed trough 2 and the conveying device 3, including a supporting screen plate 4 and two oppositely arranged movable screen plates 5;

[0021] The supporting screen plate 4 is fixedly connected to the frame of the conveying device 3 through a connecting frame, and its surface is evenly distributed with screen holes for screening powder materials;

[0022] One end of the movable sieve plate 5 is hinged to the side end of the supporting sieve plate 4 via a hinge, and the other end is connected to the supporting sieve plate 4 via a drive device 6. The drive device 6 is an electric push rod, whose fixed end is hinged to the bottom of the supporting sieve plate 4 via a hinge connector, and whose output end is hinged to the bottom surface of the movable sieve plate 5 via a fixed frame. It can drive the movable sieve plate 5 to swing around the hinge point, thereby breaking up agglomerated powder and adjusting the screening efficiency.

[0023] Conveying device 3: A belt conveyor is adopted. Its driven end is rotatably connected to the inner wall of the dump truck 1 through a rotating shaft and bearings. The driving end is connected to the drive motor fixed in the truck bed through a first chain transmission device. The other side of the driving end extends out of the side wall of the truck bed and is connected to the drive end of the screw distributor 7 through a second chain transmission device, so as to realize the linkage of single motor driven conveying and material distribution.

[0024] Spiral distributor 7: It is fixed to the bottom of the outside of the dump truck 1 by a connecting plate. Its main body is a spiral conveying mechanism, which receives the powder conveyed by the conveying device 3 and spreads it evenly along the length direction. A dustproof cloth 8 is fixed on its side. It can be made of wear-resistant canvas. The dustproof cloth 8 hangs down to the ground to form a closed space to block dust.

[0025] Adjustment device 9: Located at the top of the output end of conveying device 3, it includes a fixed plate, a sliding assembly and a drive mechanism. The fixed plate is used to block part of the conveying channel to adjust the output. The sliding assembly includes sliding plates fixed on both sides of the fixed plate and a chute fixed on the truck bed. The sliding plate and the chute slide together. A toothed plate is fixed on the sliding plate. The drive mechanism includes a gear meshing with the toothed plate, a rotating shaft, a third chain transmission device and a motor fixed on the support of the truck bed. The motor drives the gear to rotate through the third chain transmission device, which drives the toothed plate and the fixed plate to slide up and down along the chute to achieve stepless adjustment of the output.

[0026] Transmission devices: The first, second and third chain drive devices are all composed of a driving sprocket, a driven sprocket and a transmission chain. Power is transmitted through the meshing of the chain and the sprocket. The structure is simple and the transmission efficiency is high.

[0027] Actual work process:

[0028] High liquid limit powder is loaded into the dump truck 1. The powder slides into the screening device through the inclined surface of the feed chute 2. The electric push rod of the drive device 6 extends and retracts, causing the movable screen plate 5 to swing and break up the powder. After the agglomerated powder is broken up, it falls into the conveying device 3 along with the fine powder through the screen holes of the supporting screen plate 4. The drive motor starts and drives the belt conveyor of the conveying device 3 to operate through the first chain transmission device, conveying the screened powder to the output end. At the same time, the drive motor drives the screw distributor 7 to operate synchronously through the second chain transmission device. According to the construction requirements, the motor of the adjustment device 9 is started and drives the gear to rotate through the third chain transmission device, causing the fixed plate to slide along the chute, changing the channel opening at the output end of the conveying device 3, thereby adjusting the powder output. After the powder enters the screw distributor 7, it is evenly pushed and spread to the working surface by the screw blades along the length direction. The dustproof cloth 8 prevents the powder from scattering and reduces dust pollution.

[0029] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high liquid limit powder spreading and processing device, comprising a dump truck (1), characterized in that, The dump truck (1) is equipped with: The output end of the conveying device (3) is driven and connected to the screw distributor (7) through a transmission mechanism; A screening device is set between the feed trough (2) and the conveying device (3). The screening device includes a supporting screen plate (4) and two oppositely arranged movable screen plates (5). The supporting screen plate (4) is fixed to the conveying device (3) through a connecting frame. One end of the movable screen plate (5) is hinged to the side end of the supporting screen plate (4), and the other end is connected to the supporting screen plate (4) through a driving device (6). Adjustment device (9) is located at the top of the output end of conveying device (3) and is used to adjust the output of conveying device (3); The spiral distributor (7) is fixedly connected to the dump truck (1) via a connecting plate, and a dustproof cloth (8) is provided on its side.

2. The high liquid limit powder spreading and processing device according to claim 1, characterized in that, The conveying device (3) includes a belt conveyor, whose driven end is rotatably connected to the inside of the dump truck (1) through a rotating shaft and bearings, and whose active end is connected to the drive motor through a first chain drive device. The drive motor is fixed inside the dump truck by a bracket. The other side of the active end of the belt conveyor extends out of the dump truck and is connected to the drive end of the screw distributor (7) through a second chain drive device.

3. The high liquid limit powder spreading and processing device according to claim 2, characterized in that, The inner side of the feed trough (2) is a sloping structure, which guides the powder to slide to the screening device.

4. The high liquid limit powder spreading and processing device according to claim 3, characterized in that, The drive device (6) includes an electric push rod, the fixed end of which is hinged to the support screen plate (4), and the output end is hinged to the movable screen plate (5) through a fixed frame.

5. The high liquid limit powder spreading and processing device according to claim 4, characterized in that, The adjusting device (9) includes a fixed plate, which is slidably connected to the truck bed on both sides by a sliding assembly. The sliding assembly includes a sliding plate, a groove and a toothed plate fixed to the sliding plate. The toothed plate meshes with a gear. The gear is connected to a motor through a rotating shaft and a third chain transmission device. The motor is fixed to the truck bed of the dump truck (1) by a bracket and drives the gear to rotate through the third chain transmission device, thereby driving the fixed plate to slide along the groove.

6. The high liquid limit powder spreading and processing device according to claim 5, characterized in that, The first chain drive device, the second chain drive device, and the third chain drive device all include a driving sprocket, a driven sprocket, and a drive chain.

7. The high liquid limit powder spreading and processing device according to claim 1, characterized in that, The spiral distributor (7) is a spiral conveying mechanism that receives the power output of the conveying device (3) through the transmission mechanism. The dustproof cloth (8) covers the side of the spiral distributor (7) to form a dustproof barrier.

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