Intelligent sweeping mechanism for new energy washing and sweeping vehicle

Abstract

The utility model discloses an intelligent cleaning mechanism for a new energy cleaning and sweeping vehicle, and relates to the technical field of cleaning and sweeping equipment. The swing frame is rotationally connected with the other end of the support arm through a first rotating shaft which is vertically arranged; one end of the swing arm is rotationally connected with the swing frame through a second rotating shaft which is horizontally arranged; the first driving device is used for driving the swing frame to rotate relative to the support arm; the second driving device is used for driving the swing arm to rotate relative to the swing frame; the mounting frame is hinged to the other end of the swing arm; the telescopic adjusting mechanism is used for adjusting the angle of the mounting frame relative to the swing arm; the driving motor is fixedly arranged on the mounting frame; the driving motor is used for driving the sweeping disc to rotate; the sweeping brush is fixedly connected with the sweeping disc; and the motor controller is in signal connection with the main controller. The cleaning effect can be improved, and abrasion of the sweeping brush can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of washing and sweeping equipment, in particular to an intelligent cleaning mechanism for a new energy washing and sweeping vehicle. Background Art

[0002] Existing new energy sweepers use an electric motor to drive a hydraulic oil pump, which in turn drives a hydraulic motor to rotate the sweeping disc. This solution is costly and consumes significant energy. Furthermore, when the existing sweeping mechanism is operating, the sweeping brush may excessively contact the ground or have a large gap with the ground. The sweeping disc speed cannot be adjusted according to actual operating conditions, resulting in poor cleaning performance. Excessive contact with the ground also increases brush wear. Utility Model Content

[0003] The purpose of the utility model is to provide an intelligent cleaning mechanism for a new energy washing and sweeping vehicle, so as to solve the problems existing in the above-mentioned prior art, improve the cleaning effect and reduce the wear of the sweeping brush.

[0004] To achieve the above purpose, the present invention provides the following solutions:

[0005] The utility model provides an intelligent cleaning mechanism for a new energy washing and sweeping vehicle, comprising:

[0006] A support arm, one end of which is fixedly connected to the body of the new energy washing and sweeping vehicle;

[0007] a swing frame, the swing frame being rotatably connected to the other end of the support arm via a vertically arranged first rotating shaft;

[0008] a swing arm, one end of which is rotatably connected to the swing frame via a horizontally arranged second rotating shaft;

[0009] a first driving device for driving the swing frame to rotate relative to the support arm;

[0010] a second driving device for driving the swing arm to rotate relative to the swing frame;

[0011] a mounting frame, the mounting frame being hinged to the other end of the swing arm;

[0012] a telescopic adjustment mechanism, one end of the telescopic adjustment mechanism being hinged to the mounting frame and the other end being hinged to the swing frame;

[0013] A drive motor, wherein the drive motor is fixed on the mounting frame and is equipped with a motor controller;

[0014] A sweeping disc, wherein the driving motor is used to drive the sweeping disc to rotate;

[0015] a sweeping brush, the sweeping brush being fixedly connected to the sweeping disc;

[0016] A main controller, the motor controller is signal - connected to the main controller, and the motor controller can feedback the current, voltage and speed of the drive motor to the main controller. The main controller can calculate the torque of the drive motor based on the current, voltage and speed, and the main controller can compare the calculated torque with a preset torque value in the main controller and adjust the height of the sweeping brush through the second driving device.

[0017] Preferably, a water - spraying frame is further arranged on the mounting frame. The water - spraying frame is provided with a water inlet and a plurality of water - spraying nozzles. Any one of the water - spraying nozzles is communicated with the water inlet, and the water inlet is used for being communicated with a water source through a pipeline.

[0018] Preferably, when the torque calculated by the main controller is greater than or equal to a preset safety torque value in the main controller, the main controller turns off the drive motor through the motor controller.

[0019] Preferably, both the first driving device and the second driving device adopt air cylinders or electric push rods.

[0020] Preferably, a rocking plate is fixedly arranged on the swing frame. The free end of the piston rod of the first driving device is hinged to one end of the rocking plate far away from the swing frame, and the cylinder body of the first driving device is hinged to the vehicle body or the supporting arm.

[0021] Preferably, a bracket is fixedly arranged on the swing frame. The cylinder body of the second driving device is hinged to the bracket, and the free end of the piston rod of the second driving device is hinged to one end of the swing arm far away from the swing frame; one end of the rocking plate far away from the piston rod of the first driving device is fixedly connected to the bracket.

[0022] Preferably, the telescopic adjusting mechanism includes a first connecting piece, a bidirectional lead screw and a second connecting piece. The first connecting piece is hinged to the mounting frame, the second connecting piece is hinged to the swing frame, and one end of the bidirectional lead screw is in threaded connection with the first connecting piece and the other end is in threaded connection with the second connecting piece.

[0023] Preferably, a planetary reducer is further included. The drive motor adopts a permanent - magnet synchronous motor, and the planetary reducer is integrally formed with the permanent - magnet synchronous motor; the planetary reducer is a two - stage planetary reducer. The first - stage sun gear of the planetary reducer is fixedly connected to the output shaft of the drive motor. The first - stage planetary carrier of the planetary reducer is rotationally matched with the outer shell of the drive motor through a first bearing. The second - stage sun gear of the planetary reducer is rotationally matched with the second - stage planetary carrier through a second bearing. The first - stage internal gear ring and the second - stage internal gear ring of the planetary reducer are both fixedly arranged on the outer shell of the planetary reducer; the output shaft of the planetary reducer is fixedly connected to the rotating shaft of the sweeping disc.

[0024] The present utility model also provides an intelligent cleaning method for a new energy washing and sweeping vehicle, based on the above-mentioned intelligent cleaning mechanism for a new energy washing and sweeping vehicle: the motor controller feeds back the current, voltage and rotation speed of the drive motor to the main controller in real time, and the main controller calculates the real-time torque of the drive motor according to the current, the voltage and the rotation speed, and the main controller compares the real-time torque with a preset torque value and a safety torque value in the main controller;

[0025] If the real-time torque is less than the preset torque value, the main controller drives the swing arm to rotate through the second driving device, so that the mounting frame, the sweeping disc and the sweeping brush descend until the real-time torque is equal to the preset torque value;

[0026] If the real-time torque is equal to the preset torque value, the main controller turns off the second driving device to keep the height of the mounting frame, the sweeping disc and the sweeping brush unchanged;

[0027] If the real-time torque is greater than the preset torque value and less than the safety torque value, the main controller drives the swing arm to rotate through the second driving device, so that the mounting frame, the sweeping disc and the sweeping brush rise until the real-time torque is equal to the preset torque value;

[0028] If the real-time torque is greater than or equal to the safety torque value, the main controller turns off the drive motor through the motor controller.

[0029] The present utility model has achieved the following technical effects compared with the prior art:

[0030] The intelligent cleaning mechanism for a new energy washing and sweeping vehicle of the present utility model can obtain the real-time torque of the drive motor, and adjust the height of the sweeping disc and the sweeping brush according to the comparison result of the real-time torque with the preset torque value and the safety torque value, that is, adjust the gap between the sweeping brush and the ground, so that the real-time torque of the drive motor reaches the preset torque value, thereby improving the cleaning efficiency; at the same time, it can also reduce the wear of the sweeping brush.

[0031] The main controller in the intelligent cleaning mechanism for a new energy washing and sweeping vehicle of the present utility model can also compare the real-time torque of the drive motor with the safety torque value, and directly turn off the drive motor when the real-time torque of the drive motor is greater than or equal to the safety torque value, so as to avoid damage to the drive motor and the sweeping brush. Description of the Drawings

[0032] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0033] Figure 1 This is a schematic diagram of the structure of the intelligent cleaning mechanism for the new energy washing and sweeping vehicle of the present utility model;

[0034] Figure 2 This is a schematic diagram of the three-dimensional structure of the drive motor and planetary reducer in the intelligent cleaning mechanism for a new energy washing and sweeping vehicle of the present utility model;

[0035] Figure 3 This is a schematic diagram of the structure of the drive motor and planetary reducer in the intelligent cleaning mechanism for a new energy washing and sweeping vehicle of the present utility model;

[0036] Figure 4 for Figure 3 AA cross-sectional diagram;

[0037] Among them, 1. Support arm; 2. Swing frame; 3. First rotating shaft; 4. Bracket; 5. Rocker plate; 6. First driving device; 7. Swing arm; 8. Second driving device; 9. Planetary reducer; 10. Driving motor; 11. Sweeping disc; 12. Sweeping brush; 13. Water spray frame; 14. Bidirectional screw; 15. First bearing; 16. Second bearing; 17. Mounting frame;

[0038] 901. Planetary reducer housing; 902. Primary sun gear; 903. Primary planet gear; 904. Primary planet carrier; 905. Secondary sun gear; 906. Secondary planet gear; 907. Secondary planet carrier; 908. Planetary reducer output shaft; 101. Motor output shaft. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] The purpose of the utility model is to provide an intelligent cleaning mechanism for a new energy washing and sweeping vehicle, so as to solve the problems existing in the above-mentioned prior art, improve the cleaning effect and reduce the wear of the sweeping brush.

[0041] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0042] Embodiment 1

[0043] As Figures 1-4 shown, this embodiment provides an intelligent cleaning mechanism for a new energy washing and sweeping vehicle, which includes a support arm 1, a swing frame 2, a swing arm 7, a first driving device 6, a second driving device 8, a sweeping disk 11, a driving motor 10, a sweeping brush 12, a main controller, and a water spraying frame 13.

[0044] Among them, one end of the support arm 1 is fixedly connected to the vehicle body of the new energy washing and sweeping vehicle; the swing frame 2 is rotatably connected to the other end of the support arm 1 through a vertically arranged first rotating shaft 3; one end of the swing arm 7 is rotatably connected to the swing frame 2 through a horizontally arranged second rotating shaft, the mounting frame 17 is hinged to the other end of the swing arm 7, and the sweeping brush 12 is located below the sweeping disk 11 and fixedly installed on the sweeping disk 11.

[0045] It should be noted that the mounting frame 17 is also connected to the swing frame 2 through a telescopic adjustment mechanism. One end of the telescopic adjustment mechanism is hinged to the mounting frame 17, and the other end is hinged to the swing frame 2. By adjusting the length of the telescopic adjustment mechanism, the attitude of the mounting frame 17 relative to the swing arm 7 can be adjusted.

[0046] In this embodiment, the telescopic adjustment mechanism includes a first connecting piece, a bidirectional lead screw 14, and a second connecting piece. The first connecting piece is hinged to the mounting frame 17, the second connecting piece is hinged to the swing frame 2, and one end of the bidirectional lead screw 14 is threadedly connected to the first connecting piece and the other end is threadedly connected to the second connecting piece. The bidirectional lead screw is also called a reverse thread lead screw or a left - right hand lead screw. One side has a left - hand thread and the other side has a right - hand thread, which can achieve the structure of simultaneous opposite - direction movement. It is an existing component, and its structure will not be elaborated here; in this embodiment, when the bidirectional lead screw 14 is rotated, the first connecting piece and the second connecting piece can move towards or away from each other, so as to achieve the purpose of adjusting the overall length of the telescopic adjustment mechanism. By adjusting the length of the telescopic adjustment mechanism, the angle of the mounting frame 17 relative to the swing arm 7 can be adjusted, thereby adjusting the inclination angles of the sweeping disk 11 and the sweeping brush 12.

[0047] It should be noted that in actual production applications, components with length adjustment functions such as electric telescopic rods, cylinders, and hydraulic cylinders can also be selected according to actual needs as the telescopic adjustment mechanism in this embodiment.

[0048] The first driving device 6 is used to drive the swing frame 2 to rotate relative to the support arm 1, and the second driving device 8 is used to drive the swing arm 7 to rotate relative to the swing frame 2; in this embodiment, both the first driving device 6 and the second driving device 8 adopt air cylinders or electric push rods. A swing plate 5 is fixedly arranged on the swing frame 2. The free end of the piston rod of the first driving device 6 is hinged to one end of the swing plate 5 away from the swing frame 2, and the cylinder body of the first driving device 6 is hinged to the vehicle body or the support arm 1. A support 4 is fixedly arranged on the swing frame 2. The cylinder body of the second driving device 8 is hinged to the support 4, and the free end of the piston rod of the second driving device 8 is hinged to one end of the swing arm 7 away from the swing frame 2; in this embodiment, one end of the swing plate 5 away from the piston rod of the first driving device 6 is fixedly connected to the support 4.

[0049] The driving motor 10 is fixedly arranged on the mounting frame 17. The driving motor 10 is equipped with a motor controller and is used to drive the sweeping disc 11 and the sweeping brush 12 to rotate.

[0050] This embodiment further includes a planetary reducer 9. The driving motor 10 adopts a permanent magnet synchronous motor, and the planetary reducer 9 is integrally formed with the permanent magnet synchronous motor; the planetary reducer 9 is a two-stage planetary reducer. The first-stage sun gear 902 of the planetary reducer 9 is fixedly connected to the motor output shaft 101 (i.e., the output shaft of the driving motor). The first-stage planetary carrier 904 of the planetary reducer 9 is rotationally matched with the end face housing of the driving motor 10 through the first bearing 15. The second-stage sun gear 905 of the planetary reducer 9 is fixedly connected to the first-stage planetary carrier 904. The second-stage sun gear 905 of the planetary reducer 9 is rotationally matched with the second-stage planetary carrier 907 through the second bearing 16. The second-stage planetary carrier 907 is fixedly connected to the output shaft 908 of the planetary reducer. The first-stage internal gear ring and the second-stage internal gear ring of the planetary reducer 9 are both fixedly arranged on the housing of the planetary reducer 9. The first-stage sun gear 902 and the first-stage internal gear ring are respectively meshed with the first-stage planetary gears 903, and the second-stage sun gear 905 and the second-stage internal gear ring are respectively meshed with the second-stage planetary gears 906; the output shaft 908 of the planetary reducer is fixedly connected to the rotating shaft of the sweeping disc 11. The planetary reducer 9 converts the output of the driving motor 10 into the mechanical energy output with low speed and large torque required by the sweeping brush 12 to drive the rotating operation of the sweeping disc 11 and the sweeping brush 12; the setting of the first bearing 15 and the second bearing 16 in the planetary reducer 9 reduces the noise during the operation of the planetary reducer 9 and makes the operation of the planetary reducer 9 more stable.

[0051] The motor controller adopts a sine vector controller. The motor controller outputs three-phase sinusoidal alternating current with a voltage range of 110VAC - 380VAC and a power range of 500W - 3000W. The motor controller outputs electric energy to the driving motor 10, and the motor controller can adjust the power and speed of the driving motor 10.

[0052] The permanent magnet synchronous motor adopted by the driving motor 10 is designed with an energy-efficient solution. The motor housing is a stretch-formed shell with built-in heat dissipation fins, eliminating the need for additional heat dissipation facilities. The static seal uses an O-ring, and the rotating shaft end uses a skeleton oil seal for sealing. The power cable adopts a quick-release plug with an IP67 rating or an overall sealed wiring harness, and the overall protection level is IP67 or above.

[0053] The main controller is set on the vehicle body. The motor controller is signal-connected to the main controller, and the motor controller can feedback the current, voltage, and speed of the driving motor 10 to the main controller. The main controller can calculate the real-time torque of the driving motor 10 based on the real-time obtained current, voltage, and speed. Multiplying the current by the voltage can obtain the power of the driving motor 10, and dividing the power of the driving motor 10 by the speed of the driving motor 10 can obtain the real-time torque of the driving motor 10. The main controller can compare the calculated real-time torque with the preset torque value in the main controller and adjust the heights of the mounting frame 17, the sweeping disc 11, and the sweeping brush 12 through the second driving device 8. When the real-time torque calculated by the main controller is greater than or equal to the preset safety torque value in the main controller, the main controller shuts down the driving motor 10 through the motor controller.

[0054] It should be noted that it is achievable for those skilled in the art to set an algorithm in the main controller to calculate the real-time torque of the driving motor 10 according to the description of this application, and thus it will not be elaborated here. The preset torque value is the torque when the cleaning efficiency of the sweeping brush 12 is the highest, which needs to be obtained by technicians through actual tests and written into the main controller; the safety torque value is the torque value that will be exceeded when the sweeping brush 12 encounters an obstacle and cannot rotate, and it also needs to be determined by technicians through tests and written into the main controller.

[0055] The water spraying frame 13 is set on the mounting frame 17. The water spraying frame 13 is provided with a water inlet and multiple water spraying nozzles. Any one of the water spraying nozzles is communicated with the water inlet, and the water inlet is used to be communicated with a water source through a pipeline.

[0056] The specific working principle of the intelligent cleaning mechanism for the new energy washing and sweeping vehicle provided in this embodiment is as follows:

[0057] Drive the swing frame 2 to rotate through the first driving device 6. The swing frame 2 drives the support arm 1, the mounting frame 17, the driving motor 10, the sweeping disc 11, and the sweeping brush 12 to rotate above the area to be cleaned together. Then drive the mounting frame 17 to descend through the second driving device 8. Drive the sweeping disc 11 and the sweeping brush 12 to rotate through the driving motor 10. The sweeping brush 12 gradually descends to contact the ground. The motor controller feedbacks the current, voltage, and speed of the driving motor 10 to the main controller, and the main controller can calculate the real-time torque of the driving motor 10 based on the real-time obtained current, voltage, and speed.

[0058] Embodiment Two

[0059] This embodiment provides an intelligent cleaning method for a new energy washing and sweeping vehicle, based on the intelligent cleaning mechanism of the new energy washing and sweeping vehicle in Embodiment 1, which is as follows:

[0060] The motor controller feeds back the current, voltage, and speed of the drive motor 10 to the main controller in real time. The main controller calculates the real-time torque of the drive motor based on the current, voltage, and speed, and compares the real-time torque with the preset torque value and the safety torque value in the main controller;

[0061] If the real-time torque is less than the preset torque value, the main controller drives the swing arm to rotate through the second drive device, causing the mounting bracket 17, the sweeping disk 11, and the sweeping brush 12 to descend until the real-time torque is equal to the preset torque value;

[0062] If the real-time torque is equal to the preset torque value, the main controller turns off the second drive device 8 to maintain the height of the mounting bracket 17, the sweeping disk 11, and the sweeping brush 12 unchanged;

[0063] If the real-time torque is greater than the preset torque value and less than the safety torque value, the main controller drives the swing arm to rotate through the second drive device, causing the mounting bracket 17, the sweeping disk 11, and the sweeping brush 12 to rise until the real-time torque is equal to the preset torque value;

[0064] If the real-time torque is greater than or equal to the safety torque value, the main controller turns off the drive motor 10 through the motor controller.

[0065] It should be noted that after the real-time torque is equal to the preset torque value, the motor controller still feeds back the current, voltage, and speed of the drive motor 10 to the main controller in real time. The main controller also continuously calculates the real-time torque of the drive motor 10 and performs real-time adjustment.

[0066] In the description of the present invention, it should be noted that the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0067] Specific examples are used in the present invention to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the method and its core idea of the present invention; at the same time, for those of ordinary skill in the art, according to the idea of the present invention, there will be changes in the specific implementation manner and application scope. In summary, the content of this specification should not be construed as a limitation to the present invention.

Claims

1. An intelligent cleaning mechanism for a new energy washing and sweeping vehicle, characterized in that: Comprising: A support arm, one end of which is fixedly connected to the vehicle body of the new energy washing and sweeping vehicle; A swing frame, which is rotationally connected to the other end of the support arm through a vertically arranged first rotating shaft; A swing arm, one end of which is rotationally connected to the swing frame through a horizontally arranged second rotating shaft; A first driving device for driving the swing frame to rotate relative to the support arm; A second driving device for driving the swing arm to rotate relative to the swing frame; A mounting frame, which is hinged to the other end of the swing arm; A telescopic adjustment mechanism, one end of which is hinged to the mounting frame and the other end is hinged to the swing frame; A driving motor, which is fixedly arranged on the mounting frame, and the driving motor is equipped with a motor controller; A sweeping disk, and the driving motor is used to drive the sweeping disk to rotate; A sweeping brush, which is fixedly connected to the sweeping disk; A main controller, and the motor controller is signal-connected to the main controller.

2. The intelligent cleaning mechanism for the new energy washing and sweeping vehicle according to claim 1, wherein: A water spraying frame is further arranged on the mounting frame. The water spraying frame is provided with a water inlet and a plurality of water spraying nozzles. Any one of the water spraying nozzles is communicated with the water inlet, and the water inlet is used to be communicated with a water source through a pipeline.

3. The intelligent cleaning mechanism for a new energy washing and sweeping vehicle according to claim 1, wherein: When the torque obtained by the main controller through calculation is greater than or equal to the preset safety torque value in the main controller, the main controller turns off the driving motor through the motor controller.

4. The intelligent cleaning mechanism for a new energy washing and sweeping vehicle according to claim 1, wherein: Both the first driving device and the second driving device adopt cylinders or electric push rods.

5. The intelligent cleaning mechanism for new energy washing and sweeping vehicles according to claim 4, wherein: A swing plate is fixedly arranged on the swing frame. The free end of the piston rod of the first driving device is hinged to the end of the swing plate far away from the swing frame, and the cylinder body of the first driving device is hinged to the vehicle body or the support arm.

6. The intelligent cleaning mechanism for the new energy washing and sweeping vehicle according to claim 5, characterized in that: A support is fixedly arranged on the swing frame. The cylinder body of the second driving device is hinged to the support, and the free end of the piston rod of the second driving device is hinged to the end of the swing arm far away from the swing frame; the end of the swing plate far away from the piston rod of the first driving device is fixedly connected to the support.

7. The intelligent cleaning mechanism for a new energy washing and sweeping vehicle according to claim 1, characterized in that: The telescopic adjustment mechanism includes a first connecting piece, a bidirectional lead screw and a second connecting piece. The first connecting piece is hinged to the mounting frame, the second connecting piece is hinged to the swing frame, and one end of the bidirectional lead screw is threadedly connected to the first connecting piece and the other end is threadedly connected to the second connecting piece.

8. The intelligent cleaning mechanism for a new energy washing and sweeping vehicle according to claim 1, characterized in that: It further includes a planetary reducer. The driving motor adopts a permanent magnet synchronous motor, and the planetary reducer is integrally formed with the permanent magnet synchronous motor; the planetary reducer is a two-stage planetary reducer. The first-stage sun gear of the planetary reducer is fixedly connected to the output shaft of the driving motor. The first-stage planetary carrier of the planetary reducer is rotationally matched with the outer shell of the driving motor through a first bearing. The second-stage sun gear of the planetary reducer is rotationally matched with the second-stage planetary carrier through a second bearing. The first-stage internal gear ring and the second-stage internal gear ring of the planetary reducer are both fixedly arranged on the outer shell of the planetary reducer; the output shaft of the planetary reducer is fixedly connected to the rotating shaft of the sweeping disk.

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