A road sweeper, an adjustment method and a sweeping device

Abstract

The present invention discloses a road sweeper, an adjustment method and a cleaning device. The cleaning device includes a sweeping disk and an adjustment assembly. When the cleaning device is deployed to the working position, the upper-mounted controller controls the motor of the adjustment assembly to drive the gear to rotate. The gear moves along the rack, and the gear drives the sweeping disk to move, realizing fine adjustment of the cleaning position of the sweeping disk, ensuring that the sweeping disk can effectively clean the road surface near the road curb. At the same time, it is not necessary for the driver to frequently adjust the position of the vehicle, reducing the skill requirements for the driver.

Description

Technical Field

[0001] The present invention relates to the technical field of sweepers, and in particular to a sweeper, an adjustment method and a sweeping device. Background Art

[0002] In the prior art sweepers, the sweeping width of the sweeping disc is pre-adjusted and set, and cannot be changed at will.

[0003] When the road sweeper is cleaning, the driver needs to constantly adjust the steering wheel to adjust the position of the road sweeper to adjust the distance between the sweeping disc and the curb. If the sweeping disc is too close or too far from the curb, the curb cannot be cleaned effectively, and the driver needs to have high driving skills to achieve effective cleaning of the curb.

[0004] Therefore, how to achieve effective cleaning by a sweeper while reducing the skill requirements for the driver has become a technical problem that needs to be urgently solved by those skilled in the art. Summary of the invention

[0005] In view of this, the present invention provides a cleaning device to achieve effective cleaning of a cleaning vehicle while reducing the skill requirements for the driver. The present invention also provides a cleaning vehicle and an adjustment method.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A cleaning device, suitable for a cleaning vehicle, comprises a sweeping disc and an adjusting component, wherein the sweeping disc is connected to a body of the cleaning vehicle via the adjusting component, the adjusting component can adjust the position of the sweeping disc along the width direction of the body, and the adjusting component is communicatively connected to a controller mounted on the cleaning vehicle.

[0008] The adjustment component comprises:

[0009] A sliding rod connected to the vehicle body;

[0010] A rack, arranged in parallel with the sliding rod and connected to the vehicle body, the rack being arranged along the width direction of the vehicle body;

[0011] A gear is meshed with the rack, the gear is connected to a motor, the motor is slidably connected to the sliding rod through a sliding sleeve, and the gear is connected to the sweeping disc.

[0012] Preferably, in the above cleaning device, it also includes:

[0013] A swing rod, which can swing around the circumference of the sweeping disc, one end of the swing rod is connected to the sweeping disc through a rotary assembly, and the other end of the swing rod can abut against the curb;

[0014] A displacement sensor, capable of detecting the swing angle of the swing rod, and the displacement sensor is communicatively connected to the upper-mounted controller.

[0015] Preferably, in the above-mentioned cleaning device, the slewing assembly includes:

[0016] An outer cylinder, connected to the sweeping disc;

[0017] A torsion spring, installed inside the outer cylinder, with the first end of the torsion spring fixedly connected to the outer cylinder, and the second end of the torsion spring connected to the swing rod, and the length extension direction of the second end is the same as the length extension direction of the swing rod.

[0018] Preferably, in the above-mentioned cleaning device, a roller is provided at the free end of the swing rod, and the axis of the roller is perpendicular to the axis of the swing rod.

[0019] Preferably, in the above-mentioned cleaning device, a limiting block is further included, which is used to limit the swing rod and prevent the swing rod from swinging forward towards the vehicle body in the free state.

[0020] A road sweeper, including a vehicle body and a cleaning device,

[0021] A steering wheel angle sensor is provided on the vehicle body, and the steering wheel angle sensor is communicatively connected to the upper-mounted controller,

[0022] The cleaning device is the cleaning device described in any one of the above solutions.

[0023] An adjustment method, applicable to a road sweeper, includes the steps:

[0024] 1) The upper-mounted controller drives the cleaning device to unfold, so that the swing rod swings backward under the thrust of the road edge;

[0025] 2) The displacement sensor collects the swing angle of the swing rod and transmits the first signal of the swing angle to the upper-mounted controller;

[0026] 3) After receiving the first signal, the upper-mounted controller controls the motor to drive the gear to move along the rack, and the gear drives the sweeping disc to move along the width direction of the vehicle body.

[0027] Preferably, in the above adjustment method, step 3) further includes the steering wheel angle collected by the steering wheel angle sensor and transmits the second signal of the steering wheel angle to the upper-mounted controller.

[0028] Preferably, in the above adjustment method, step 3) is specifically:

[0029] The swing angle is less than arccos(d / r) - 5°, and the angle of the steering wheel is 0 - 30°. The upper controller controls the motor to drive the gear to rotate. The gear drives the rack to move, and the rack drives the sweeping disk to move towards the curb direction until the swing angle of the swing rod is arccos(d / r) - 5° - arccos(d / r) + 5°;

[0030] The swing angle is arccos(d / r) + 5°, and the angle of the steering wheel is 0 - 30°. The upper controller controls the motor to drive the gear to rotate. The gear drives the rack to move, and the rack drives the sweeping disk to move away from the curb direction until the swing angle of the swing rod is arccos(d / r) - 5° - arccos(d / r) + 5°.

[0031] Preferably, in the above adjustment method, it further includes step 4) after step 3):

[0032] The angle of the steering wheel is greater than 30°. The upper controller controls the motor to drive the gear to rotate. The gear drives the rack to move, and the rack drives the sweeping disk to return to the initial position and controls the motor to stop.

[0033] It can be seen from the above technical solutions that the cleaning device provided by the present invention includes a sweeping disk and an adjustment assembly. When the cleaning device is unfolded to the working position, the upper controller controls the motor of the adjustment assembly to drive the gear to rotate. The gear moves along the rack, and the gear drives the sweeping disk to move, realizing fine adjustment of the cleaning position of the sweeping disk, ensuring that the sweeping disk can effectively clean the road surface near the curb. At the same time, it is not necessary for the driver to frequently adjust the position of the vehicle, reducing the skill requirements for the driver.

[0034] This solution also discloses a road sweeper, including a vehicle body and a cleaning device. A steering wheel angle sensor is provided on the vehicle body, and the steering wheel angle sensor is communicatively connected to the upper controller. The cleaning device is the cleaning device described in any of the above solutions. Since the cleaning device has the above technical effects, the road sweeper with this cleaning device also has the same technical effects and will not be elaborated here.

[0035] This solution also discloses an adjustment method applicable to the above road sweeper. Since the road sweeper has the above technical effects, the adjustment method using this road sweeper also has the same technical effects and will not be elaborated here. Description of the Drawings

[0036] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0037] Figure 1 Structural schematic diagram of the cleaning device provided by the embodiment of the present invention;

[0038] Figure 2 Structural schematic diagram of the cleaning device provided by the embodiment of the present invention after removing the motor;

[0039] Figure 3 Structural schematic diagram of the rotary assembly provided by the embodiment of the present invention;

[0040] Figure 4 Structural schematic diagram of the cooperation between the rotary assembly and the swing rod provided by the embodiment of the present invention;

[0041] Figure 5 Flow chart of the adjustment method provided by the first embodiment of the present invention;

[0042] Figure 6 Flow chart of the adjustment method provided by the second embodiment of the present invention;

[0043] Figure 7 Flow chart of the adjustment method provided by the third embodiment of the present invention.

[0044] Among them,

[0045] 1. Sweeping disc, 2. Adjustment assembly, 21. Gear, 22. Rack, 3. Swing rod, 4. Displacement sensor, 5. Rotary assembly, 51. Outer cylinder, 52. Torsion spring, 6. Roller, 7. Limit block, 8. Motor. Detailed implementation manners

[0046] The present invention discloses a cleaning device to achieve effective cleaning of a cleaning vehicle and at the same time reduce the skill requirements for the driver. The present invention also discloses a cleaning vehicle and an adjustment method.

[0047] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0048] The present invention discloses a cleaning device applicable to a cleaning vehicle.

[0049] The cleaning device includes a sweeping disk 1 and an adjustment assembly 2.

[0050] The sweeping disk 1 is used to clean the road surface. The sweeping disk 1 includes a fixed disk and bristles. The fixed disk is a circular fixed disk, and the bristles are evenly arranged on the fixed disk.

[0051] The adjustment assembly 2 is used to adjust the distance between the sweeping disk 1 and the vehicle body. Specifically, the adjustment of the position of the sweeping disk 1 by the adjustment assembly 2 is carried out after the cleaning device is deployed, and the adjustment direction of the adjustment assembly 2 is along the width direction of the vehicle body. The adjustment assembly 2 can realize fine adjustment of the position of the sweeping disk 1 to ensure that the sweeping disk 1 can contact the road edge and effectively clean the road surface near the road edge.

[0052] The distance between the sweeping disk 1 and the road edge cannot be too close. If the bristles of the sweeping disk 1 are on the road edge, it is easy to cause wear of the bristles and shorten the service life of the sweeping disk 1.

[0053] The adjustment assembly 2 is in communication connection with the upper-mounted controller of the cleaning vehicle, and the operation of the adjustment assembly 2 is controlled by the upper-mounted controller.

[0054] In a specific embodiment of this solution, as Figure 4 shown, the adjustment assembly 2 includes a sliding rod, a gear 21 and a rack 22. The gear 21 is connected to the motor 8, the motor 8 is installed on the sliding rod through a sliding sleeve, and the gear 21 meshes with the rack 22..

[0055] The cleaning device disclosed in this solution includes a sweeping disk 1 and an adjustment assembly 2. When the cleaning device is deployed to the working position, the upper-mounted controller controls the motor of the adjustment assembly 2 to drive the gear 21 to rotate. The gear 21 moves along the rack 22, and finally drives the sweeping disk 1 to move, realizing fine adjustment of the cleaning position of the sweeping disk 1, ensuring that the sweeping disk 1 can effectively clean the road surface near the road edge, and at the same time, it is not necessary for the driver to frequently adjust the position of the vehicle, reducing the skill requirements for the driver.

[0056] The cleaning device disclosed in this solution further includes a swing rod 3 and a displacement sensor 4.

[0057] The swing rod 3 can rotate around the circumference of the sweeping disk 1. As Figure 1 and 2 shown, the first end of the swing rod 3 is connected to the middle of the sweeping disk 1, the other end of the swing rod 3 is a free end, and the free end of the swing rod 3 can abut against the road edge.

[0058] After the swing rod 3 contacts the road edge, as the vehicle body moves, the swing rod 3 will move towards the rear of the vehicle body. At this time, the distance between the sweeping disk 1 and the road edge decreases, and the edge of the sweeping disk 1 contacts the road edge.

[0059] The displacement sensor 4 can detect the swing angle of the swing rod 3 and transmit the first signal of the detected swing angle to the upper controller.

[0060] The upper controller receives the first signal and determines the rotation direction of the control gear 21 according to the first signal. In this solution, by improving the rotation direction of the gear 21, it is realized whether the sweeping disc 1 moves towards the vehicle body or away from the vehicle body.

[0061] In this solution, through the cooperation of the upper controller and the displacement sensor 4, the automatic adjustment of the position of the sweeping disc 1 is realized.

[0062] The slewing assembly 5 is used to realize that after the swing rod 3 rotates towards the rear of the vehicle body, it can return to the initial position under the action of the slewing assembly 5.

[0063] In a specific embodiment of this solution, as Figure 2 and 3 shown, the slewing assembly 5 includes an outer cylinder 51 and a torsion spring 52.

[0064] The torsion spring 52 is installed inside the outer cylinder 51, and the outer cylinder 51 is connected to the sweeping disc 1.

[0065] The first end of the torsion spring 52 is fixedly connected to the outer cylinder 51, the second end of the torsion spring 52 is connected to the swing rod 3, and the length extension direction of the second end of the torsion spring 52 is the same as the length extension direction of the swing rod 3.

[0066] The swing rod 3 moves towards the rear of the vehicle body, driving the second end of the torsion spring 52 to move. The torsion spring 52 accumulates a certain elastic force. The elastic force of the torsion spring 52 is used to realize that after the cleaning is completed or after the distance between the sweeping disc 1 and the road edge increases, the swing rod 3 can rotate in the opposite direction to ensure that the swing rod 3 can make effective contact with the road edge.

[0067] In a specific embodiment of this solution, the outer cylinder 51 is a metal outer cylinder 51.

[0068] In order to reduce the wear on the swing rod 3, a roller 6 is provided at the free end of the swing rod 3 in this solution. As Figure 3 and 4 shown, the axis of the roller 6 is perpendicular to the axis of the swing rod 3. When the swing rod 3 contacts the road edge, the circumferential surface of the swing rod 3 makes rolling contact with the road edge, so as to achieve the purpose of reducing the wear on the swing rod 3.

[0069] Preferably, the swing rod 3 is a rubber or plastic swing rod 3. The cost of the rubber or plastic swing rod 3 is relatively low, reducing the maintenance cost of the cleaning device.

[0070] In order to prevent the swing rod 3 from swinging towards the front of the vehicle body in the free state, a limiting block 7 is provided on the sweeping disc 1 in this solution.

[0071] The limiting block 7 can limit the swing rod 3 to prevent the swing rod 3 from swinging forward towards the vehicle body in the free state.

[0072] In this solution, the front and the rear are both referenced to the vehicle body. The end of the vehicle body where the driver's seat is set is the front, and the end of the vehicle body opposite to the end where the driver's seat is set is the rear.

[0073] This solution also discloses a road sweeper, which includes a vehicle body and a cleaning device.

[0074] A steering wheel angle sensor is arranged on the vehicle body, and the steering wheel angle sensor is communicatively connected to the upper mounting controller.

[0075] The cleaning device is the cleaning device described in any of the above solutions. Since the cleaning device has the above technical effects, the road sweeper with this cleaning device also has the same technical effects, which will not be elaborated here.

[0076] This solution also discloses an adjustment method, which is applicable to the road sweeper described in the above solution. Since the road sweeper has the above technical effects, the adjustment method using this road sweeper also has the same technical effects, which will not be elaborated here.

[0077] As Figure 5 shown, the adjustment method includes the following steps:

[0078] 1) The upper mounting controller drives the cleaning device to unfold, so that the swing rod 3 swings backward under the thrust of the road edge.

[0079] 2) The displacement sensor 4 collects the swing angle of the swing rod 3 and transmits the first signal of the swing angle to the upper mounting controller.

[0080] 3) After receiving the first signal, the upper mounting controller controls the motor 8 to drive the gear 21 to move along the rack 22, and the gear 21 drives the sweeping disk 1 to move along the width direction of the vehicle body.

[0081] When the road sweeper enters the cleaning operation mode, the cleaning device unfolds and extends to both sides in the width direction of the vehicle body, so that the swing rod 3 of the sweeping disk 1 close to the road edge contacts the road edge. As the vehicle body moves, the road edge pushes the swing rod 3 to swing backward towards the vehicle body.

[0082] The displacement sensor 4 collects the swing angle of the swing rod 3 and transmits the first signal of the swing angle to the upper mounting controller. The upper mounting controller receives the first signal, analyzes the first signal, and adjusts the moving direction of the sweeping disk 1 according to the analysis result.

[0083] As Figure 6 shown, step 3) of the adjustment method disclosed in this solution also includes the steering wheel angle collected by the steering wheel angle sensor and transmits the second signal of the steering wheel angle to the upper mounting controller.

[0084] The upper controller receives the first signal and the second signal, combines and analyzes the first signal and the second signal, and adjusts the adjusting assembly 2 and the steering wheel.

[0085] In this solution, step 3) is specifically as follows:

[0086] When the swing angle is less than arccosd / r - 10° and the angle of the steering wheel is 0 - 30°, the upper controller controls the motor 8 to drive the gear 21 to rotate. The gear 21 moves along the rack 22, and the gear 21 drives the sweeping disc 1 to move towards the road edge.

[0087] When the swing angle is -arccosd / r + 10° and the angle of the steering wheel is 0 - 30°, the upper controller controls the motor 8 to drive the gear 21 to rotate. The gear 21 moves along the rack 22, and the gear 21 drives the sweeping disc 1 to move away from the road edge.

[0088] The driver operates the vehicle to drive and approaches the road edge. The swing rod 3 contacts the road edge.

[0089] The driver continues to operate the vehicle to approach the road edge. The swing rod 3 continues to rotate backward. The displacement sensor 4 collects the swing angle of the swing rod 3 and transmits the collected swing angle as the first signal to the upper controller. When the swing angle is arccosd / r - 10° and the angle of the steering wheel is 0 - 30°, the upper controller controls the motor 8 to drive the gear 21 to rotate. The gear 21 moves along the rack 22, and the gear 21 drives the sweeping disc 1 to move towards the road edge until the swing angle of the swing rod 3 is arccosd / r - 5° - arccosd / r + 5°; when the swing angle is arccosd / r + 5° and the angle of the steering wheel is 0 - 30°, the upper controller controls the motor 8 to drive the gear 21 to rotate. The gear 21 moves along the rack 22, and the gear 21 drives the sweeping disc 1 to move away from the road edge until the swing angle of the swing rod 3 is arccosd / r - 5° - arccosd / r + 5°.

[0090] When the swing angle of the swing rod 3 is arccosd / r - 5° - arccosd / r + 5°, the upper controller does not adjust the position of the sweeping disc 1, and the vehicle keeps moving straight.

[0091] The driver drives straight and the angle of the steering wheel does not change. If the road edge changes, the swing angle of the swing rod 3 will also change, and the first signal of the swing angle collected by the position sensor will also change. The adjusting assembly adjusts the position of the sweeping disc 1 left and right according to the change of the first signal, so that the angle of the swing rod 3 is kept within arccosd / r - 5° - arccosd / r + 5°.

[0092] During driving operation, when the angle of the steering wheel is within the set range of 0 - 30°, the adjustment component adjusts left and right to keep the angle of the swing rod 3 within arccosd / r - 5° - arccosd / r + 5°.

[0093] When the steering wheel angle is between 0 - 30° and the angle of the swing rod 3 is between arccosd / r - 5° - arccosd / r + 5°, the sweeper's broom disk 1 is in the best cleaning state for the roadside.

[0094] As Figure 7 shown, the adjustment method disclosed in this solution further includes step 4) after step 3). When the angle of the steering wheel is greater than 30°, the upper-mounted controller controls the motor 8 to drive the gear 21 to rotate. The gear 21 drives the rack 22 to move, and the rack 22 drives the broom disk 1 to return to the initial position, and controls the motor 8 to stop.

[0095] During driving operation, when the angle of the steering wheel exceeds 30°, it indicates that the current straight-line driving mode has ended. The offset mechanism returns to the initial position and the upper-mounted controller stops adjusting the adjustment component.

[0096] Here, an explanation of the initial position is as follows:

[0097] The broom disk 1 is unfolded. At this time, the mating position of the gear 21 and the rack 22 is the initial position of the broom disk 1. The adjustment of the initial position is controlled by the energization duration of the solenoid valve. When the broom disk 1 is retracted and the work of the broom disk 1 ends, the rack 22 is at the initial position and drives the broom disk 1 to return to the initial position.

[0098] When the broom disk 1 is working, the position of the broom disk 1 is adjusted. The broom disk 1 deviates from the initial position and is located on the left or right side of the initial position to achieve the left and right adjustment of the broom disk 1.

[0099] The left and right directions of the broom disk 1 are the width direction of the vehicle body.

[0100] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be obvious to those skilled in the art. The general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments shown herein, but rather to the broadest scope consistent with the principles and novel features disclosed herein.

Claims

1. A cleaning device, applicable to a road sweeper, characterized in that, it includes a sweeping disk (1) and an adjusting assembly (2). The sweeping disk (1) is connected to the vehicle body of the road sweeper through the adjusting assembly. The adjusting assembly (2) can adjust the position of the sweeping disk (1) in the width direction of the vehicle body. The adjusting assembly (2) is communicatively connected to the upper-mounted controller of the road sweeper. The adjusting assembly (2) includes: a sliding rod, connected to the vehicle body; a rack (22), arranged parallel to the sliding rod and connected to the vehicle body. The rack (22) is arranged in the width direction of the vehicle body; a gear (21), meshing with the rack (22). The gear (21) is connected to a motor (8). The motor (8) is slidably connected to the sliding rod through a sliding sleeve. The gear (21) is connected to the sweeping disk; The cleaning device further includes: a swing rod (3), capable of swinging around the circumference of the sweeping disk (1). One end of the swing rod (3) is connected to the sweeping disk (1) through a swing assembly (5). The other end of the swing rod (3) can abut against the road edge; a displacement sensor (4), capable of detecting the swing angle of the swing rod (3). The displacement sensor (4) is communicatively connected to the upper-mounted controller; The swing assembly (5) includes: an outer cylinder (51), connected to the sweeping disk (1); a torsion spring (52), installed inside the outer cylinder (51). The first end of the torsion spring (52) is fixedly connected to the outer cylinder (51). The second end of the torsion spring (52) is connected to the swing rod (3). The length extension direction of the second end is consistent with the length extension direction of the swing rod (3).

2. The cleaning device according to claim 1, characterized in that, a roller (6) is provided at the free end of the swing rod (3). The axis of the roller (6) is perpendicular to the axis of the swing rod (3).

3. The cleaning device according to claim 1, characterized in that, it further includes a limit block (7) for limiting the swing rod (3) to prevent the swing rod (3) from swinging forward towards the vehicle body in the free state.

4. A road sweeper, characterized in that, it includes a vehicle body and a cleaning device, a steering wheel angle sensor is provided on the vehicle body. The steering wheel angle sensor is communicatively connected to the upper-mounted controller, and the cleaning device is the cleaning device according to any one of claims 1 - 3.

5. An adjusting method, applicable to the road sweeper according to claim 4, characterized in that, for adjusting the cleaning device according to any one of claims 1 - 3, it includes the steps of: 1) The upper-mounted controller drives the cleaning device to unfold, so that the swing rod (3) swings backward under the thrust of the road edge; 2) The displacement sensor (4) collects the swing angle of the swing rod (3) and transmits the first signal of the swing angle to the upper-mounted controller; 3) After receiving the first signal, the upper-mounted controller controls the motor (8) to drive the gear (21) to move along the rack (22), and the gear (21) drives the sweeping disk (1) to move in the width direction of the vehicle body.

6. The adjusting method according to claim 5, It is characterized in that Step 3) further includes the steering wheel angle collected by the steering wheel angle sensor, and transmits the second signal of the steering wheel angle to the upper controller 7. The adjustment method according to claim 6 It is characterized in that Step 3) is specifically: When the swing angle is less than arccos(d / r) - 5° and the angle of the steering wheel is 0 - 30°, the upper controller controls the motor (8) to drive the gear (21) to rotate, the gear (21) moves along the rack (22), and the gear (21) drives the sweeping disc (1) to move towards the road edge direction until the swing angle of the swing rod (3) is arccos(d / r) - 5° - arccos(d / r) + 5°; When the swing angle is arccos(d / r) + 5° and the angle of the steering wheel is 0 - 30°, the upper controller controls the motor (8) to drive the gear (21) to rotate, the gear (21) moves along the rack (22), and the gear (21) drives the sweeping disc (1) to move away from the road edge direction until the swing angle of the swing rod (3) is arccos(d / r) - 5° - arccos(d / r) + 5°.

8. The adjustment method according to claim 6 It is characterized in that It further includes step 4) after step 3): When the angle of the steering wheel is greater than 30°, the upper controller controls the motor (8) to drive the gear (21) to rotate, the gear (21) moves along the rack (22), the gear (21) drives the sweeping disc (1) to return to the initial position, and controls the motor (8) to stop.

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