A rolling sweeper pneumatic dust removal system

Abstract

The application discloses a kind of pneumatic dust removal systems of rolling sweeping road sweeper, comprising: lifting frame, side rubber, rolling brush, dust suction fan, filter dust box, dust collection box, front rubber, rolling brush box, dust baffle, rolling brush box is opened in front upper portion one air inlet, when the rolling brush works, dust in the rolling brush box can be effectively guided into filter cartridge box and dust collection box inside, dust baffle is arranged on the upper portion of dust collection box, dust effectively increased to the inside of dust collection box, reduce the dust into filter cartridge, extend the plugging time of filter cartridge, enhance the filtering effect of filter cartridge to reduce the dust in the process of operation, effectively avoid the influence on passerby and secondary pollution to environment in operation, improve the cleaning quality of road sweeper.

Description

Technical Field

[0001] This invention relates to the field of sanitation and cleaning technology, specifically to a pneumatic dust removal system for a rotary sweeper. Background Technology

[0002] Mechanized street sweeping is an important indicator of modern sanitation, and road sweepers, with their small size and flexible steering, are widely used in cleaning non-motorized vehicle lanes, sidewalks, squares, parks, and other areas. Currently, road sweepers commonly found on the market can be categorized into three types based on their operating mode: pure sweeping, pure suction, and suction-sweeping.

[0003] Roller sweepers can be classified as pure sweeping sweepers, primarily relying on sweeping discs to collect and concentrate garbage. The rotating rollers carry the garbage into a collection bin, while a pneumatic conveying system with a suction fan assists in collecting dust. When the rollers collect garbage, they stir up dust from the road surface, creating a dust cloud. The roller sweeper's suction fan cannot carry most of this dust into the collection and filter bins. Furthermore, due to the large amount of dust inside the bins and the short airflow path, the dust directly enters the filter bins, easily clogging the filter cartridges. This results in significant dust generation at the roller brush box and the rear of the vehicle, impacting pedestrians and the surrounding environment. Clogged filter cartridges require stopping the machine and activating the vibratory motor to clean the dust before resuming operation, greatly reducing continuous working time. Adding additional dust suppression nozzles would increase the vehicle's water consumption, and excessive water at the roller brush area could turn the dust into mud, causing the dust inside the roller brush box to clump together and resulting in secondary pollution of the road surface. Summary of the Invention

[0004] To address the problems existing in the prior art, this invention provides a pneumatic conveying system that effectively avoids excessive dust generation at the roller brush and rear of the vehicle, and minimizes filter cartridge clogging time. This structure is simple and easy to implement, requiring no additional increase in the power of the suction fan, and effectively reduces overall vehicle dust generation and extends the time before filter cartridge clogging occurs. It improves the overall machine's operational capacity and reduces the impact on pedestrians and the surrounding environment during machine operation.

[0005] To achieve the above objectives, the technical solution adopted by this invention is: a pneumatic dust removal system for a roller sweeper, installed on the chassis plane at the bottom of the vehicle body, comprising: a lifting frame, side rubber sheets, a roller brush, a dust suction fan, a dust filter box, a dust collection box, a front rubber sheet, a roller brush box, and a dust baffle. The roller brush box has a mounting port at the bottom front for installing the roller brush, a connection port at the top rear for communicating with the dust filter box, and a mounting port at the rear for installing the dust collection box. The roller brush is mounted on the roller brush box via the lifting frame. The lifting frame controls the up-and-down movement of the roller brush. The dust filter box is installed above the chassis plane, and the roller brush box is installed below the chassis plane, so that the upper rear connection port of the roller brush box is connected to the dust filter box. The dust collection box is installed in the mounting port at the rear of the roller brush box, and the dust collection box is located below the dust filter box. The dust baffle is set between the connection port of the dust filter box and the mounting port of the roller brush. The side rubber and front rubber are installed around the roller brush box. The dust suction fan is fixed on the dust filter box. The roller brush is equipped with a roller brush motor.

[0006] Furthermore, an air inlet is provided at the upper front of the roller brush housing, and the position of the air inlet is tangent to or slightly higher than the top of the roller brush.

[0007] Furthermore, the dust collection box has a drawer-type structure with two rollers installed at the bottom for easy movement. After installation, the four walls of the dust collection box form a sealed space with the roller brush box. The dust baffle is arranged on the upper part of the dust collection box, opposite to the direction in which the roller brush throws the garbage.

[0008] Furthermore, the dust filter box is equipped with a vibrating motor and a filter cartridge. The filter cartridge is mounted on the chassis plane, the vibrating motor is mounted on the filter cartridge, and the dust filter box cover is mounted on the vibrating motor and the filter cartridge and fixed on the chassis plane.

[0009] Furthermore, the lifting frame includes: a square tube, a rotating sleeve, ear plates, a spring, and a lifting line. Two ear plates are welded to the upper and lower sides of the square tube. The lower ear plate is connected to the brush housing via a spring, and the upper ear plate is connected to the lifting line. The lifting line can control the up and down movement of the brush. Rotating sleeves are welded to both ends of the square tube, one fixed to the brush housing and the other fixed to the brush, for raising and lowering the brush.

[0010] Furthermore, the dust baffle is one or more of rubber, plastic, and fabric.

[0011] A method for operating a pneumatic dust removal system for a roller sweeper: During operation, a control drive unit drives the roller brush and a dust extraction fan. The roller brush sweeps garbage from the ground into its housing, and the dust extraction fan and roller brush work together to propel the garbage towards the dust collection box. After passing through the roller brush housing, the gas comes into contact with the dust baffle and then bends downwards into the dust collection box before rising upwards into the filter housing. Some dust settles at the bottom of the dust collection box, while the remaining dust enters the filter cartridge with the airflow before being discharged by the dust extraction fan. When too much dust is adsorbed in the filter cartridge, a vibrating motor is controlled to shake the dust into the dust collection box.

[0012] The beneficial effects of this invention are as follows: An air inlet is opened at the upper front of the roller brush box, which can effectively guide the dust in the roller brush box into the filter cartridge box and the dust collection box when the roller brush is working. A dust baffle is set on the upper part of the dust collection box, which can effectively increase the amount of dust settling into the dust collection box, reduce the amount of dust entering the filter cartridge, prolong the clogging time of the filter cartridge, enhance the filtration effect of the filter cartridge, thereby reducing dust during operation, effectively avoiding the impact on pedestrians and secondary pollution to the environment during operation, and improving the sweeping quality of the sweeper. The system has a simple and reliable structure, and can reduce the dust of the whole vehicle and enhance the continuous operation capability of the whole machine without adding fan power. It can effectively avoid the impact on pedestrians and secondary pollution to the environment during operation, and improve the sweeping quality of the sweeper. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0014] Figure 2 This is a side view of the structure of the present invention;

[0015] Figure 3 This is a schematic diagram of the working structure of the present invention, away from the analysis structure.

[0016] In the diagram: 1. Lifting frame; 2. Side rubber sheet; 3. Roller brush; 4. Dust extraction fan; 5. Dust filter box; 501. Vibrating motor; 502. Filter cartridge; 6. Dust collection box; 7. Front rubber sheet; 8. Roller brush box; 81. Air inlet; 9. Dust baffle; 10. Chassis plane. Detailed Implementation

[0017] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. However, it should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of the invention.

[0018] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention.

[0019] like Figure 1-2 As shown, a pneumatic dust removal system for a rotary sweeper is installed on the chassis plane 10 at the bottom of the vehicle body. It includes: a lifting frame 1, side rubber strips 2, a rotary brush 3, a dust suction fan 4, a dust filter box 5, a dust collection box 6, a front rubber strip 7, a rotary brush box 8, and a dust baffle 9. The rotary brush box 8 and the dust filter box 5 are installed on the chassis plane 10 of the sweeper. The rotary brush box 8 has a mounting port for installing the rotary brush 3 at the bottom front, a connection port for connecting to the dust filter box 5 at the top rear, and a mounting port for installing the dust collection box 6 at the rear. The rotary brush 3 is mounted on the rotary brush box 8 via the lifting frame 1, and the vertical movement of the rotary brush 3 is controlled by the lifting frame 1. The dust collection box 5 is located above the connection port at the rear of the roller brush box 8. The dust collection box 6 is installed in the mounting port at the rear of the roller brush box 8, and is located below the dust filter box 5. The dust baffle 9 is located between the connection port of the dust filter box 5 and the mounting port of the roller brush 3. The side rubber 2 and the front rubber 7 are installed around the box of the roller brush box 8. The dust suction fan 4 is fixed on the dust filter box 5 to provide the power source for air. The operation of the fan causes the air to flow from the roller brush box 8 into the dust filter box. The roller brush 3 is equipped with a roller brush 3 motor. The rotation of the roller brush 3 motor drives the roller brush 3 to rotate from back to front, bringing the garbage into the dust collection box 6.

[0020] Side rubber 2 and front rubber 7 are installed around the roller brush box 8, with the bottom clearance from the ground maintained at 5mm-10mm. This is to prevent garbage from splashing out and to serve as the air intake of the vacuum fan 4, suppressing dust from escaping. The front rubber 7 can be flipped upwards, making it easier for large pieces of garbage to enter the roller brush box 8 and be carried by the roller brush 3 into the dust collection box 6.

[0021] like Figure 1-2 As shown, an air inlet 81 is opened at the upper front of the roller brush box 8. The optimal position of the air inlet 81 is tangent to or slightly higher than the top of the roller brush 3. The size of the opening can be matched according to the actual size of the box and the air volume of the vacuum fan 4. The airflow at this position can effectively guide the dust carried by the roller brush 3 into the dust collection box 6 and the dust filter box, thereby reducing the problem of dust being carried by the roller brush 3 during rotation and remaining inside the roller brush box 8, which causes a large amount of dust to be stirred up at the roller brush 3.

[0022] like Figure 1-2As shown, the dust collection box 6 has a drawer-type structure with two rollers installed at the bottom for easy movement. After installation, the four walls of the dust collection box 6 form a sealed space with the roller brush box 8, which can prevent dust from overflowing and reduce air intake points, thus ensuring that the airflow is completely drawn from the roller brush box 8 to the exhaust fan. The dust baffle 9 is arranged on the upper part of the dust collection box 6, opposite to the direction of the garbage thrown by the roller brush 3. The upper part of the dust baffle 9 is fixed to the roller brush box 8 or the dust collection box 6, and the lower part is suspended above the inside of the dust collection box 6. It can block the garbage and dust brought in by the roller brush 3 and the vacuum fan 4, which helps the garbage and dust to settle, increases the amount of dust settling into the dust collection box 6, reduces the amount of dust entering the filter cartridge 502, effectively prolongs the clogging time of the filter cartridge 502, and reduces the amount of dust in the exhaust gas.

[0023] like Figure 1-2 As shown, the dust filter box 5 is equipped with a vibrating motor 501 and a filter cartridge 502. The filter cartridge 502 is installed on the base plane 10, and the vibrating motor 501 is installed on the filter cartridge 502. The dust filter box 5 covers the vibrating motor 501 and the filter cartridge 502 and is fixed above the base plane. The airflow carries the dust into the filter cartridge 502 and then discharges it through the dust suction fan 4. At this time, the dust will be adsorbed on the inner wall of the filter cartridge 502. When too much dust is adsorbed on the filter cartridge 502, the vibrating motor 501 can vibrate the filter cartridge 502 to make the dust fall off and be collected in the dust collection box 6.

[0024] like Figure 1-2 As shown, the lifting frame 1 includes: a square tube, a rotating sleeve, ear plates, a spring, and a lifting line. Two ear plates are welded to the upper and lower sides of the square tube. The lower ear plate is connected to the roller brush box 8 through the spring, and the upper ear plate is connected to the lifting line. The roller brush 3 can be moved up and down by the lifting line. Rotating sleeves are welded to both ends of the square tube. One is fixed to the roller brush box 8, and the other is fixed to the roller brush 3 for raising and lowering the roller brush 3.

[0025] like Figure 1-2 As shown, the dust baffle 9 is one or more of rubber, plastic, and fabric.

[0026] A method for operating a pneumatic dust removal system for a roller sweeper: During operation, the control drive device drives the roller brush 3 and the dust suction fan 4 to work. The roller brush 3 sweeps the garbage on the ground into the roller brush box 8, and through the action of the dust suction fan 4 and the roller brush 3, the garbage is thrown towards the dust collection box 6. After the gas passes through the roller brush box 8, it contacts the dust baffle 9 and then bends downward into the dust collection box 6, and then rises into the dust filter box 5. Some of the dust will settle to the bottom of the dust collection box 6, and the remaining part of the dust will enter the filter cartridge 502 with the airflow and then be discharged by the dust suction fan 4. When too much dust is adsorbed in the filter cartridge 502, the vibration motor 501 is controlled to shake the dust into the dust collection box 6.

[0027] like Figure 2As shown in the figure, the three directional arrows A, B, and C indicate the direction of gas flow, and the rotating arrow indicates the direction of rotation of the roller brush 3.

[0028] When the roller brush box 8 has no Figure 2 When the air inlet 81 is open, the vacuum fan 4 starts and the roller brush 3 rotates during operation. Figure 3 As shown in the figure, the pneumatic system of the whole vehicle is as indicated by the arrows in directions A and B. Because the roller brush 3 rotates in a clockwise direction, the airflow in direction B will be canceled out, and the air intake will be reduced. This will reduce the wind force guiding the dust filter box, and it will be unable to effectively guide the garbage and dust into the dust filter box 5 and the dust collection box 6. At this time, some dust will be carried back into the roller brush box 8 along with the rotation direction of the roller brush 3, resulting in a large amount of dust in the roller brush box 8. Excessive dust accumulation will overflow from the roller brush box 8, resulting in excessive dust.

[0029] And when the roller brush housing 8 is opened Figure 2 When the air intake is 81, an additional airflow is added tangentially to the roller brush 3 during operation. At this time, the entire vehicle's pneumatic system is as follows: Figure 3 As indicated by the arrows in directions A, B, and C, the airflow direction in direction C will cause the dust stirred up by the rotating roller brush 3 to have an additional airflow towards the dust collection box 6 and the dust filter box 5. This will better allow the dust to escape the traction force of the rotating roller brush 3 and enter the dust filter box 5 and the dust collection box 6, reducing the amount of dust circulating inside the roller brush box 8, and effectively reducing the dust situation of the whole vehicle.

[0030] Similarly, without the dust baffle 9, the dust kicked up by the roller brush 3 will directly enter the filter cartridge 502 with the airflow direction. This will cause the filter cartridge 502 to clog for a short time, requiring the machine to be stopped and the vibrating motor 501 to shake the dust in the filter cartridge 502 into the dust collection box 6. However, with the dust baffle 9 installed, the dust kicked up by the roller brush 3 will hit the dust baffle 9 with the airflow. At this time, some of the dust will settle into the dust collection box 6, and the remaining dust will enter the filter cartridge 502. This can prolong the clogging time of the filter cartridge 502, thereby increasing the continuous operation time of the whole machine.

[0031] The pneumatic dust removal system for roller sweepers, which combines the air inlet 81 on the roller brush housing 8 and the dust baffle 9, can effectively solve the problems of large dust emissions at the roller brush 3, easy clogging of the filter cartridge 502, and short continuous operation time of the whole machine.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pneumatic dust removal system for a rotary sweeper, installed on the chassis plane at the bottom of the vehicle body, characterized in that, include: The system includes a lifting frame, side rubber sheets, a roller brush, a vacuum fan, a dust filter housing, a dust collection box, a front rubber sheet, a roller brush housing, and a dust baffle. The roller brush housing has a mounting port at the bottom front for installing the roller brush, a connection port at the top rear for connecting to the dust filter housing, and a mounting port at the rear for installing the dust collection box. The roller brush is mounted on the roller brush housing via the lifting frame, which controls the up-and-down movement of the roller brush. The dust filter housing is mounted above the chassis plane, and the roller brush housing is mounted below the chassis plane. The upper rear connection port is connected to the dust filter box. The dust collection box is installed in the mounting port at the rear of the roller brush box, and the dust collection box is located below the dust filter box. The dust baffle is set between the connection port of the dust filter box and the mounting port of the roller brush. The side rubber and front rubber are installed around the roller brush box. The dust suction fan is fixed on the dust filter box. The roller brush is equipped with a roller brush motor. An air inlet is opened at the upper front of the roller brush box. The dust baffle is arranged on the upper part of the dust collection box opposite to the direction of the roller brush throwing garbage.

2. The pneumatic dust removal system for a rotary sweeper according to claim 1, characterized in that, The air intake is positioned tangent to or slightly above the top of the roller brush.

3. The pneumatic dust removal system for a rotary sweeper according to claim 1, characterized in that, The dust collection box has a drawer-type structure with two casters installed at the bottom for easy movement. After installation, the four walls of the dust collection box form a sealed space with the roller brush box.

4. The pneumatic dust removal system for a rotary sweeper according to claim 1, characterized in that, The dust filter box is equipped with a vibrating motor and a filter cartridge. The filter cartridge is installed on the chassis plane, the vibrating motor is installed on the filter cartridge, and the dust filter box cover is installed on the vibrating motor and the filter cartridge and fixed to the chassis plane.

5. The pneumatic dust removal system for a rotary sweeper according to claim 1, characterized in that, The lifting frame includes: a square tube, a rotating sleeve, ear plates, a spring, and a lifting line. Two ear plates are welded to the upper and lower sides of the square tube. The lower ear plate is connected to the roller brush box through the spring, and the upper ear plate is connected to the lifting line. The roller brush can be moved up and down by the lifting line. Rotating sleeves are welded to both ends of the square tube, one fixed to the roller brush box and the other fixed to the roller brush, for raising and lowering the roller brush.

6. The pneumatic dust removal system for a rotary sweeper according to claim 1, characterized in that, The dust baffle is made of one or more of the following materials: rubber, plastic, and fabric.

7. The pneumatic dust removal system for a rotary sweeper according to claim 1, characterized in that, During operation, the control drive unit drives the roller brush and the vacuum fan. The roller brush sweeps the garbage on the ground into the roller brush box, and through the action of the vacuum fan and the roller brush, the garbage is thrown towards the dust collection box. After the air passes through the roller brush box and comes into contact with the dust baffle, it bends downwards into the dust collection box and then rises into the dust filter box. Some of the dust will settle to the bottom of the dust collection box, and the remaining dust will enter the filter cartridge with the airflow and then be discharged by the vacuum fan. When too much dust is adsorbed in the filter cartridge, the vibration motor is controlled to shake the dust into the dust collection box.

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