Pure electric road sweeper with double-fan structure

Abstract

The utility model relates to the technical field of special vehicles, and discloses a pure electric road sweeper with a double-fan structure, which comprises a frame, a garbage can, a sweeping device, a first fan, a second fan and a driving motor, the first fan and the second fan are used for generating negative pressure in a box body of the garbage can, and the driving motor is used for directly driving the first fan and the second fan. The first draught fan and the second draught fan are connected to the two ends of a rotating shaft of the driving motor in a direct drive mode correspondingly and communicate with an inner cavity of the dustbin through a first pipeline and a second pipeline correspondingly. The bottom of the garbage can is connected with a suction structure used for sucking garbage into a box of the garbage can, and the suction structure is arranged close to the sweeping equipment. According to the utility model, motor rotation stability and vehicle energy efficiency are effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to special vehicle technical field, concretely is a kind of double-fan structure pure electric road sweeper. BACKGROUND

[0002] Pure electric washing and sweeping vehicle is a road cleaning vehicle produced and refitted on the basis of pure electric two-type chassis.Currently, there are two arrangement forms of the washing and sweeping device of the pure electric washing and sweeping vehicle, one is to install two disc brushes and one suction disc in the middle of the chassis, and the other is to install four disc brushes in the middle of the chassis and one suction disc at the rear of the chassis, and both of the two arrangement forms belong to single-fan suction mode, that is, one permanent magnet synchronous motor directly drives or drives the fan through a belt wheel, and the road garbage and sewage are sucked into the garbage bin through the negative pressure and kinetic energy formed by the operation of the fan.The washing and sweeping effect of the single-fan washing and sweeping vehicle is relatively good when it is used to wash and sweep the road in a general polluted area, but due to the limited power of the single fan, the speed of the suction disc with the vehicle is relatively fast, and the washing and sweeping effect is poor in a seriously polluted area, which easily causes the leakage of road garbage, so the vehicle needs to return to wash and sweep the road again, thereby prolonging the working time and reducing the working efficiency.

[0003] To solve the above technical problems, the Chinese invention patent CN115821832A discloses a washing and sweeping vehicle with a double-fan system, which comprises a vehicle chassis, a box body, a first fan, a second fan, a first motor, a second motor, disc brushes, a first suction disc and a second suction disc.The box body comprises a front cover, a clean water tank, a large garbage bin, a small garbage bin and a rear door.The clean water tank comprises a front water tank, a bottom water tank, a left water tank and a right water tank.The first fan, the second fan, the first motor and the second motor are located in the front cover, and the first motor drives the first fan, and the second motor drives the second fan.The washing and sweeping vehicle with the double-fan system can improve the washing and sweeping effect on a seriously polluted road, reduce the power loss and water consumption on a generally polluted road, and prolong the working time.

[0004] However, the above structure drives one fan to work with one motor, and when the fan operates, the huge rotational inertia of the fan affects the stability of the rotation of the rotating shaft of the driving motor, which requires the rotating shaft of the driving motor to have a high bearing capacity for the support and sealing elements, and the transmission efficiency is reduced due to the use of a belt transmission between the fan and the driving motor and the fan, thereby reducing the energy efficiency of the vehicle. UTILITY MODEL CONTENTS

[0005] The utility model aims to provide a double-fan structure pure electric road sweeper which effectively improves the motor rotation stability and the energy efficiency of the vehicle.

[0006] The utility model is implemented as follows:

[0007] A double-fan structure pure electric road sweeper, comprising a vehicle frame, a garbage bin, a cleaning device, further comprising a first fan and a second fan for generating negative pressure in the bin body of the garbage bin, and a driving motor for directly driving the first fan and the second fan, the first fan and the second fan are respectively directly connected at both ends of the rotating shaft of the driving motor, the first fan and the second fan are respectively connected with the bin cavity of the garbage bin through a first pipeline and a second pipeline, the bottom of the garbage bin is connected with a suction structure for sucking garbage into the bin, and the suction structure is arranged close to the cleaning device.

[0008] Further, the suction structure comprises a suction channel for sucking garbage, and an atomizing nozzle for dust reduction is arranged on the suction channel.

[0009] Further, the outlet end of the suction channel is provided with a baffle, and the baffle is arranged close to one side of the first pipeline and the second pipeline.

[0010] Further, the baffle is in a "C" shape, and the concave side of the baffle is arranged towards the outlet end of the suction channel.

[0011] Further, a filter screen is arranged between the first pipeline and the second pipeline and the suction structure, and the filter screen is connected with the garbage bin.

[0012] Further, the driving motor, the first fan and the second fan are all arranged in a sound insulation partition arranged in one end of the garbage bin.

[0013] Further, the first fan and the second fan are respectively connected with a first exhaust channel and a second exhaust channel for exhaust.

[0014] Further, the first exhaust channel and the second exhaust channel are respectively provided with a sound reduction device for noise reduction.

[0015] Further, the cleaning device is a brush.

[0016] Further, the garbage bin is arranged at the upper part of the rear side of the vehicle frame, and the cleaning device is arranged at the bottom of the front side of the vehicle frame.

[0017] Compared with the prior art, the utility model has the advantages that:

[0018] 1. The rotating shaft of the driving motor is directly connected with a fan at both ends, the fan is used as a load at the front and rear ends of the rotating shaft, the load at both ends of the rotating shaft is balanced, the stability of rotation is greatly improved, and the load requirements of the rotating shaft on the supporting member and the sealing member are reduced.

[0019] 2. The double-fan negative pressure structure can greatly reduce the volume of the negative pressure structure, optimize the space layout, reduce the air duct resistance, and improve the vehicle operation efficiency.

[0020] 3. The negative pressure structure built in the garbage can body greatly reduces the noise of the fan and provides a guarantee for further noise reduction. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0022] Figure 1 is a top view of the internal structure schematic diagram of the present application;

[0023] Figure 2 is a side view of the internal structure schematic diagram of the present application.

[0024] Reference signs: vehicle frame 1; garbage can 2; cleaning equipment 3; first fan 4; second fan 5; driving motor 6; first pipeline 7; second pipeline 8; suction duct 9; atomizing nozzle 10; baffle 11; filter screen 12; sound insulation partition 13; first exhaust duct 14; second exhaust duct 15; sound insulation device 16. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only to represent selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] Please refer to Figure 1 and Figure 2The utility model provides a kind of double-fan structure pure electric road sweeper, including frame 1, garbage box 2, cleaning equipment 3, further include the first fan 4 and the second fan 5 for the negative pressure generation in the box of the garbage box 2, and the drive motor 6 for directly driving the first fan 4 and the second fan 5, the first fan 4 and the second fan 5 are directly driven and connected at the both ends of the rotating shaft of the drive motor 6 respectively, the first fan 4 and the second fan 5 are communicated with the box cavity of the garbage box 2 by first pipeline 7 and second pipeline 8 respectively, the garbage box 2 bottom is connected with the suction structure for suctioning garbage into the box of the garbage box 2, and the suction structure is close to the cleaning equipment 3.

[0027] The suction structure includes suction channel 9 for suctioning garbage, and atomizing nozzle 10 for dust reduction is arranged on the suction channel 9.

[0028] The outlet end of the suction channel 9 is provided with baffle 11, and the baffle 11 is arranged close to one side of the first pipeline 7 and the second pipeline 8.

[0029] The baffle 11 is in the shape of "C", and the concave side of the baffle 11 is arranged towards the outlet end of the suction channel 9.

[0030] The first pipeline 7 and the second pipeline 8 are provided with filter screen 12 between the suction structure, and the filter screen 12 is connected with the garbage box 2.

[0031] The drive motor 6, the first fan 4 and the second fan 5 are all placed in the sound insulation partition 13 built-in in one end of the garbage box 2.

[0032] The first fan 4 and the second fan 5 are respectively connected with first exhaust duct 14 and second exhaust duct 15 for exhaust.

[0033] The first exhaust duct 14 and the second exhaust duct 15 are respectively provided with sound reduction device 16 for noise reduction.

[0034] The cleaning equipment 3 is a brush.

[0035] The garbage box 2 is arranged on the upper part of the rear side of the frame 1, and the cleaning equipment 3 is arranged on the bottom of the front side of the frame 1.

[0036] The working principle of the present application: the rotating shaft of the driving motor 6 is directly connected with the first fan 4 and the second fan 5 at the front and rear ends, respectively, and the air in the inner cavity of the garbage bin 2 is drawn out through the first pipeline 7 and the second pipeline 8, so that the negative pressure is generated in the garbage bin 2, and the road garbage swept by the sweeping device 3 enters the garbage bin 2 through the suction passage 9 under the action of the negative pressure, in the process of the garbage entering the garbage bin 2, the water mist sprayed by the atomizing nozzle 10 connected with the water source through the pipeline condenses the small particles in the garbage and adheres to the large particles, realizing the initial dust reduction, when the large particles pass through the outlet end of the suction passage 9, under the guiding action of the "C" shaped baffle 11, the large particles are thrown to the side away from the first pipeline 7 and the second pipeline 8, and due to the inertia and gravity, the large particles fall to the end of the garbage bin 2 away from the negative pressure, effectively reducing the flying of the light objects, the air and a small amount of light objects rush to the air inlet ends of the two fans, the light objects are blocked by the coarse filter screen 12, and the air enters the relatively independent first exhaust passage 14 and the second exhaust passage 15 to be discharged into the atmosphere, the negative pressure structure including the driving motor 6, the first fan 4 and the second fan 5 is arranged in the sound insulation partition 13 arranged in one end of the garbage bin 2, greatly reducing the noise generated by the negative pressure structure, the sound insulation device 16 arranged at the end of the first exhaust passage 14 and the second exhaust passage 15 further reduces the wind noise of the present application, the sweeping device 3 is a brush, and the garbage bin 2 is arranged at the upper part of the rear side of the vehicle frame 1, and the sweeping device 3 is arranged at the bottom of the front side of the vehicle frame 1.

[0037] The above only describes the preferred embodiments of the present application and is not used to limit the present application, and the present application can be variously changed and modified for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pure electric sweeper with a dual-fan structure, comprising: The vehicle frame (1), the garbage bin (2), and the cleaning equipment (3) are characterized in that: they further include a first fan (4) and a second fan (5) for generating negative pressure inside the garbage bin (2), and a drive motor (6) for directly driving the first fan (4) and the second fan (5). The first fan (4) and the second fan (5) are respectively directly connected to the two ends of the rotating shaft of the drive motor (6). The first fan (4) and the second fan (5) are respectively connected to the inner cavity of the garbage bin (2) through the first pipe (7) and the second pipe (8). The bottom of the garbage bin (2) is connected to a suction structure for sucking garbage into the garbage bin (2). The suction structure is set close to the cleaning equipment (3).

2. The pure electric sweeper with a dual-fan structure according to claim 1, characterized in that, The suction structure includes a suction duct (9) for sucking in garbage, and the suction duct (9) is provided with an atomizing nozzle (10) for dust suppression.

3. The pure electric sweeper with a dual-fan structure according to claim 2, characterized in that, A baffle (11) is provided at the outlet end of the inhalation duct (9), and the baffle (11) is provided on the side close to the first pipe (7) and the second pipe (8).

4. The pure electric sweeper with a dual-fan structure according to claim 3, characterized in that, The baffle (11) is C-shaped, and the concave side of the baffle (11) is disposed facing the outlet end of the inhalation channel (9).

5. A pure electric sweeper with a dual-fan structure according to claim 1, characterized in that, A filter screen (12) is provided between the first pipe (7) and the second pipe (8) and the suction structure, and the filter screen (12) is connected to the trash can (2).

6. A pure electric sweeper with a dual-fan structure according to claim 1, characterized in that, The drive motor (6), the first fan (4), and the second fan (5) are all placed inside the soundproof partition (13) built into one end of the garbage bin (2).

7. A pure electric sweeper with a dual-fan structure according to claim 1, characterized in that, The first fan (4) and the second fan (5) are respectively connected to a first exhaust duct (14) and a second exhaust duct (15) for exhausting air.

8. A pure electric sweeper with a dual-fan structure according to claim 7, characterized in that, The first exhaust duct (14) and the second exhaust duct (15) are respectively equipped with a noise reduction device (16).

9. A pure electric sweeper with a dual-fan structure according to claim 1, characterized in that, The trash can (2) is located on the upper part of the rear side of the vehicle frame (1), and the cleaning device (3) is located on the bottom of the front side of the vehicle frame (1).

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