Control system and control method for lifting of gearbox of sweeper

Abstract

The invention relates to the technical field of gearbox control, in particular to a sweeper gearbox lifting control system and method, and the system comprises an environment sensing module which measures the ground material and gradient through a laser sensor and an infrared sensor, detects the pollution degree through a sonic sensor, and controls the lifting of a sweeper gearbox according to the ground material, the ground gradient and the pollution degree; determining a ground type and a cleaning demand, and generating ground type judgment; the self-adaptive capacity and energy efficiency performance of the sweeper in different cleaning environments are enhanced, the sensor is used for measuring the ground material and gradient and detecting the pollution degree, various cleaning scenes can be recognized, and the cleaning mode can be adjusted, so that the rotating speed of the gear box and the pressure of the brush can be adjusted according to the ground type, and the cleaning strength can be adjusted; the dynamic optimization not only improves the cleaning efficiency, but also reduces the energy consumption, the cleaning quality is improved and the service life of the equipment is prolonged through detailed adjustment, and the economic and environmental benefits are effectively improved.

Description

Technical Field

[0001] The present invention relates to the technical field of gear box control, and in particular to a control system and a control method for lifting a gear box of a sweeper. Background Art

[0002] A sweeper is a household or commercial cleaning device that is mainly used to automatically or semi-automatically clean the floor. It uses a built-in motor and a broom or vacuum device to remove dust and debris from the floor.

[0003] However, existing sweepers usually have low adaptability when faced with complex cleaning environments, especially in terms of floor material recognition and automatic adjustment of cleaning strategies. The lack of optimized operations for specific pollution and materials leads to low equipment efficiency, inconsistent cleaning results, and increased reliance on manual adjustments. This technical limitation manifests itself in low energy efficiency and poor user experience during use, affecting practicality and market competitiveness. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a control system and a control method for lifting the gear box of a sweeping machine.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: A control system for lifting the gear box of a sweeping machine comprises:

[0006] The environmental sensing module uses laser sensors and infrared sensors to measure the ground material and slope, and uses acoustic sensors to detect the degree of pollution. Based on the ground material, ground slope, and degree of pollution, it determines the ground type and cleaning requirements, and generates a ground type judgment.

[0007] A threshold logic module, according to the ground type determination, sets and compares the thresholds of hard ground and carpet to obtain a threshold comparison result; and uses the threshold comparison result to adjust the gearbox speed and lifting frequency;

[0008] The energy efficiency monitoring module records energy consumption through current sensors and voltage sensors to obtain real-time energy consumption data; analyzes the real-time energy consumption data, adjusts the motor speed and brush pressure of the sweeper, and generates energy efficiency optimization results;

[0009] The parameter adjustment feedback module determines the operating efficiency of the sweeper based on the energy efficiency optimization result and obtains a comprehensive operation evaluation result.

[0010] Preferably, the acquisition steps of the ground type determination are:

[0011] Use laser sensors and infrared sensors to measure ground material and slope, and use acoustic sensors to detect pollution levels, integrating ground material, ground slope and pollution levels to obtain comprehensive ground information;

[0012] Analyze the characteristics of ground material, slope and pollution degree according to the comprehensive ground information, and compare them with the preset ground type standard to obtain the ground type analysis result;

[0013] Based on the ground type analysis result, the ground type is identified and determined to obtain a ground type determination.

[0014] Preferably, the steps of obtaining the threshold comparison result are:

[0015] According to the ground type determination, the thresholds of hard ground and carpet are set, and the threshold of hard ground is set to T h , the threshold of the carpet is set to T c ;

[0016] Comparison of hard ground threshold T h and carpet threshold T c , calculate the threshold difference.

[0017] Preferably, the steps of adjusting the gearbox speed and lifting frequency using the threshold comparison result are:

[0018] According to the threshold comparison result, the reference speed coefficient value is adjusted;

[0019] Using the adjustment reference speed coefficient value, combined with the current speed S0 of the gearbox;

[0020] Based on the new gearbox speed, the lifting frequency F is calculated.

[0021] Preferably, the steps of acquiring the real-time energy consumption data are:

[0022] The current sensor and the voltage sensor work synchronously to monitor the current and voltage changes of the sweeping machine in real time and obtain the monitoring data of the current and voltage;

[0023] Integrate the collected current and voltage monitoring data and convert the monitoring data into real-time energy consumption data.

[0024] Preferably, the steps of obtaining the energy efficiency optimization result are:

[0025] Analyze the real-time energy consumption data, determine the current energy consumption mode of the sweeper, and obtain energy consumption analysis results;

[0026] According to the energy consumption analysis results, an adjustment target is set, and the motor speed that needs to be adjusted is calculated to match the cleaning requirements and energy efficiency standards of the floor type;

[0027] Implement motor speed adjustments, update motor speed settings, and continuously monitor real-time energy consumption data to achieve energy efficiency optimization results.

[0028] Preferably, the steps for obtaining the comprehensive operation evaluation result are:

[0029] Based on the energy efficiency optimization results, monitor and analyze the operating efficiency of the sweeper to obtain integrated data;

[0030] performing efficiency analysis on the integrated data to calculate an operating efficiency percentage;

[0031] Based on the operating efficiency percentage, the motor speed is repeatedly adjusted to optimize the operating efficiency percentage and obtain a comprehensive operating evaluation result.

[0032] The present invention provides a method for controlling the lifting of a sweeping machine gearbox, comprising the following steps:

[0033] The laser sensor and infrared sensor are used to measure the material and slope of the ground, and the acoustic sensor is used to detect the degree of pollution. The data is calculated and integrated to determine the ground type and the corresponding cleaning requirements, and the ground type determination result is obtained;

[0034] According to the ground type determination result, the preset thresholds of hard ground and carpet are compared, the gearbox speed and lifting frequency are adjusted, and the gearbox adjustment result is generated;

[0035] Current and voltage sensors are used to record and analyze energy consumption, the sweeper motor speed and brush pressure are adjusted based on the gearbox adjustment results, and the operating efficiency is evaluated to obtain a comprehensive operating evaluation result.

[0036] The present invention provides a gear box lifting structure for a sweeping machine, comprising a frame, a gear box shell being installed on the inner side of the frame, a motor being fixedly installed on the top surface of the gear box shell, a motor gear being installed on the output end of the motor, an inner wall of the gear box shell being rotatably connected with side brush output teeth meshing with the motor teeth and a first bevel gear, an inner wall of the gear box shell being rotatably connected with a second bevel gear meshing with the first bevel gear, an inner wall of the gear box shell being rotatably connected with a first spur gear, a screw being fixedly installed on the inner side of the frame, a second spur gear being rotatably connected on the inner side of the gear box shell, a spring being sleeved on the surface of the first spur gear, a guide column being fixedly installed on the inner side of the frame, a side brush being fixedly installed on the bottom end of the side brush output teeth, a gear shaft being installed on the inner wall of the gear box shell, the second bevel gear being sleeved on the surface of the gear shaft, and an end face ratchet structure being provided at the bottom end of the first spur gear and the top end of the second bevel gear.

[0037] Compared with the prior art, the advantages and positive effects of the present invention are:

[0038] 1. The present invention enhances the adaptive ability and energy efficiency of the sweeper in different cleaning environments. By using sensors to measure the ground material and slope and detect the degree of pollution, it is possible to identify various cleaning scenarios and adjust the cleaning mode. Therefore, the gearbox speed and brush pressure can be adjusted according to the ground type to achieve cleaning force adjustment. Dynamic optimization not only improves cleaning efficiency, but also reduces energy consumption. Through meticulous adjustment, it improves cleaning quality and equipment life, effectively improving economic and environmental benefits.

[0039] 2. In the present invention, the function of overall lifting of the gear box assembly is realized, and a variety of lifting heights can be achieved without the need for additional motor drive, which saves costs. The lifting function can be achieved by the forward and reverse rotation of the motor, solving the problem of secondary ground contamination by the side brush assembly of the sweeper and limitations in certain usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] Figure 1 It is a flow chart of the control system of the gear box lifting of the sweeping machine in the present invention;

[0041] Figure 2 It is a schematic diagram of the lifting structure of the gear box of the sweeping machine in the present invention;

[0042] Figure 3 An exploded view of the gear box lifting structure of the sweeping machine in the present invention;

[0043] Figure 4 It is a partial schematic diagram of the gear box lifting structure of the sweeping machine in the present invention.

[0044] Figure numerals: 1, frame; 2, motor; 3, gear box housing; 4, motor teeth; 5, side brush output teeth; 6, first bevel gear; 7, second bevel gear; 8, first spur gear; 9, second spur gear; 10, screw; 11, spring; 12, guide column; 13, side brush; 14, gear shaft. DETAILED DESCRIPTION

[0045] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0046] See also Figure 1 The present invention provides a technical solution: a control system for lifting the gear box of a sweeping machine includes:

[0047] The environmental sensing module uses laser sensors and infrared sensors to measure the ground material and slope, and uses acoustic sensors to detect the degree of pollution. Based on the ground material, ground slope, and degree of pollution, it determines the ground type and cleaning requirements, and generates a ground type judgment.

[0048] The threshold logic module sets and compares the thresholds of hard ground and carpet according to the ground type, and obtains the threshold comparison result; the gearbox speed and lifting frequency are adjusted according to the threshold comparison result;

[0049] The energy efficiency monitoring module records energy consumption through current sensors and voltage sensors to obtain real-time energy consumption data; analyzes the real-time energy consumption data, adjusts the motor speed and brush pressure of the sweeper, and generates energy efficiency optimization results;

[0050] The parameter adjustment feedback module determines the operating efficiency of the sweeper based on the energy efficiency optimization results and obtains comprehensive operation evaluation results.

[0051] The steps to obtain the ground type determination are:

[0052] Use laser sensors and infrared sensors to measure ground material and slope, and use acoustic sensors to detect pollution levels, integrating ground material, ground slope and pollution levels to obtain comprehensive ground information;

[0053] Based on the comprehensive ground information, the characteristics of ground material, slope and pollution degree are analyzed and compared with the preset ground type standards to obtain the ground type analysis results;

[0054] Based on the ground type analysis result, the ground type is identified and determined to obtain a ground type judgment.

[0055] Specifically, laser sensors and infrared sensors measure the hardness and slope angle of the ground material, and ultrasonic sensors simultaneously assess the degree of ground pollution. The sensor data are aggregated through the built-in data fusion module, and preliminary cleaning is performed to remove noise and correct deviations to ensure data accuracy and consistency. The comprehensive data are standardized so that the data format meets the requirements of subsequent analysis. This information contains the preliminary basis for determining the ground type, and comprehensive ground information is obtained.

[0056] Specific data points are extracted from the comprehensive ground information, such as the material hardness index and slope values, as well as the quantitative values ​​of the pollution index. The data points are compared and analyzed, and the measured values ​​are matched with the preset ground type characteristic values, such as the typical hardness and slope ranges of hard floors and carpets. The possibility of each type is evaluated by the degree of matching, and it is analyzed which ground type is closest to the current conditions to obtain the ground type analysis results.

[0057] Based on the ground type analysis results, a numerical comparison method is used to determine the ground type that best matches the current measured features. This process determines the ground type by directly comparing the differences between the characteristic values ​​of each type and the measured values, such as hardness, slope and degree of pollution.

[0058] The steps for obtaining the threshold comparison result are:

[0059] According to the ground type, set the thresholds for hard ground and carpet. The threshold for hard ground is set to T h , the threshold of the carpet is set to T c ;

[0060] Comparison of hard ground threshold T h and carpet threshold T c , calculate the threshold difference, the calculation formula is:

[0061]

[0062] Based on the threshold difference ΔT, a threshold comparison result is obtained.

[0063] Specifically, based on the determination of the floor type, we first set the cleaning requirement thresholds for hard floors and carpets. These thresholds are set using data collected in actual environments. For example, a higher threshold may be set for hard floors due to the hardness of the material and the difficulty in keeping them clean. A different threshold may be set for carpets due to their fiber structure and the tendency to accumulate dust. The setting of the threshold takes into account the physical and chemical properties of the floor material. This requires multiple tests and surveys to determine the most appropriate value. By classifying and studying different floor materials, we determine their degree of response to cleaning intensity and set the threshold accordingly. This process involves detailed data analysis and experimental verification to ensure that the thresholds can truly reflect the cleaning requirements of different floor types and obtain the initial threshold settings for hard floors and carpets.

[0064] formula The benefit of this method is that it measures the difference between two thresholds by combining the absolute value and the geometric mean, thus improving the flexibility and sensitivity of the threshold comparison.

[0065] Calculation process: Hard ground threshold T h is 70, the threshold T of the carpet c is 50, substitute it into the formula to calculate:

[0066]

[0067] The results show that the cleaning requirements of hard floors are about 33.8% higher than those of carpets. This difference helps cleaning equipment develop more targeted cleaning strategies, thereby effectively allocating cleaning resources and improving cleaning efficiency.

[0068] By comparing the hard ground threshold T h and carpet threshold T cNot only did we obtain the threshold difference, but we also used this difference to determine which type of floor has a higher cleaning requirement. This process is not just a simple comparison of numbers, but a detailed data analysis and calculation based on the actual cleaning effect requirements. For example, by testing floors of different materials on the spot and recording their satisfaction after cleaning, we adjust the threshold to ensure that the threshold can effectively reflect the actual needs of different floors. Then, we use an algorithm to compare the thresholds of the two floors to determine the higher cleaning requirements, provide an execution guide for the cleaning equipment, and ensure that the best cleaning effect can be achieved in actual operation.

[0069] The steps for adjusting the gearbox speed and lifting frequency using the threshold comparison results are:

[0070] According to the threshold comparison result, the reference speed coefficient value is adjusted;

[0071] By adjusting the reference speed coefficient value and combining the current gearbox speed S0, the new gearbox speed S is calculated. new , the calculation formula is:

[0072]

[0073] Where R is the reference speed coefficient value;

[0074] Based on the new gearbox speed, calculate the lifting frequency F, the calculation formula is:

[0075] F=10·ln(S new ).

[0076] Specifically, based on the threshold comparison results, the ground type with higher cleaning requirements is identified. If the hard ground has higher requirements, the base speed coefficient R is set to 1.2, otherwise the base speed coefficient R is set to 1.0. This process depends on the ground type and its corresponding cleaning requirements. The setting of the base speed coefficient is dynamically adjusted according to the difficulty of the actual cleaning task. The setting value of R is not selected arbitrarily, but is based on the evaluation results of the ground material and the degree of pollution, ensuring that the sweeping robot can adjust its operating mode according to different environments and improve cleaning efficiency. For example, hard floors generally require higher speeds to remove stains, while carpets may require lower speeds to prevent damage to the fiber structure. This dynamic adjustment strategy enables the device to more effectively respond to the challenges of different cleaning scenarios, optimize energy use and extend the service life of the equipment.

[0077] formula The benefit is that by considering the reference speed coefficient R and the inverse square root of the difference between R and 1 for nonlinear adjustment, the speed adjustment is more delicate and can be effectively adjusted according to different ground types. The steps for obtaining R are to evaluate and determine the ground type with higher cleaning requirements. If the hard ground requirement is higher, R is set to 1.2, otherwise it is 1.0;

[0078] Calculation process: The current gearbox speed S0 = 1500rpm, the hard floor cleaning requirement is high, and R = 1.2:

[0079] ΔR=|R-1|=0.2

[0080]

[0081] S new =1500·(1.2+0.913)=1500·2.113=3170rpm

[0082] The result shows that the new gearbox speed is 3170rpm, which means that in situations with higher hard floor cleaning demands, the gearbox speed is significantly increased, thereby improving cleaning efficiency.

[0083] Formula F=10·ln(S new ) is beneficial in that the speed of the new gearbox is converted into the lifting frequency through the operation of natural logarithm, so that the frequency adjustment is more in line with the needs of actual mechanical operation, and the adjustment process conforms to the characteristics of logarithmic response and is suitable for the needs of nonlinear adjustment;

[0084] Calculation process: Use the new gearbox speed S mentioned above new =3170rpm,

[0085] ln(S new )=ln(3170)≈8.06

[0086] F=10·8.06=80.6Hz

[0087] The results show that the lifting frequency is adjusted to 80.6 Hz, which indicates that when the gearbox speed increases significantly, the related mechanical movement frequency also increases accordingly, which will directly affect the robot's operating efficiency and cleaning effect.

[0088] The steps to obtain real-time energy consumption data are as follows:

[0089] The current sensor and the voltage sensor work synchronously to monitor the current and voltage changes of the sweeping machine in real time and obtain the monitoring data of the current and voltage;

[0090] Integrate the collected current and voltage monitoring data and convert the monitoring data into real-time energy consumption data.

[0091] Specifically, in each operating state of the sweeper, current sensors and voltage sensors are synchronously enabled to monitor the energy consumption of the equipment. The data captured by these sensors reflect the instant changes in current and voltage when the machine performs different tasks. The equipment status includes start, run, no load and stop, etc. The sensors continuously record data to ensure a comprehensive view of current and voltage from multiple angles. By comparing these data with the energy consumption standards of different operating states of the machine, the energy efficiency performance of the equipment can be monitored in real time. This method can ensure real-time updating of data and capture any possible abnormal consumption. The monitored current and voltage data are recorded in detail and stored in the form of timestamps.

[0092] Converting these current and voltage data into real-time energy consumption data includes converting the raw readings of current and voltage into calculations of power consumption. The actual energy consumption value is obtained by combining the product of voltage and current with the time factor. These energy consumption values ​​are further analyzed to determine the energy efficiency of the equipment under different operating conditions. This real-time data on energy consumption provides a direct view of the operating efficiency of the equipment.

[0093] The steps to obtain energy efficiency optimization results are:

[0094] Analyze real-time energy consumption data, determine the current energy consumption mode of the sweeper, and obtain energy consumption analysis results;

[0095] According to the energy consumption analysis results, set the adjustment target and calculate the motor speed that needs to be adjusted to match the cleaning requirements and energy efficiency standards of the floor type. The calculation formula is:

[0096]

[0097] Among them, V new represents the adjusted motor speed, V0 is the initial motor speed, E current is the current energy consumption, E target is the target energy consumption;

[0098] Implement motor speed adjustments, update motor speed settings, and continuously monitor real-time energy consumption data to achieve energy efficiency optimization results.

[0099] Specifically, during the operation of the sweeper, current sensors and voltage sensors deployed on key mechanical components record current and voltage data in real time. These data are directly related to the operating status and energy consumption level of the equipment, and identify the specific energy consumption of the machine in different cleaning modes, especially in high-load and low-load working stages. Through detailed current and voltage readings, the energy consumption peak of the equipment under specific operations is found, such as more energy is consumed when cleaning carpets than when cleaning hard floors. These data are then analyzed to determine in which cleaning mode the equipment is least efficient, and potential points for optimizing energy use are found, such as adjusting the cleaning path or changing the brush speed. In this way, energy distribution is optimized, overall energy efficiency is improved, and energy consumption at each operation stage is ensured to be accurately calculated and analyzed to obtain energy consumption analysis results.

[0100] formula The benefit of V0 is that by adjusting the motor speed in response to the difference between actual energy consumption and target energy consumption, it can optimize energy use and improve energy efficiency while reducing unnecessary energy waste. The steps for obtaining the V0 parameter are to obtain the initial motor speed of the sweeper under standard operation from the equipment technical manual, which is usually the standard speed setting provided by the equipment manufacturer. current The parameter acquisition step is to collect the current actual energy consumption data through the real-time energy consumption monitoring system. This data is recorded and calculated in real time by current and voltage sensors; E target The parameters are obtained by following the energy efficiency standards of the equipment or the target energy consumption level determined by energy efficiency experts, which is usually based on the energy consumption performance of similar equipment or the expected energy consumption target after energy-saving improvements;

[0101] Calculation process: V0 = 1500 rpm, E current =500 watts, E target =400 watts,

[0102]

[0103] The result shows that if the current energy consumption exceeds the target energy consumption, the motor speed needs to be significantly reduced. This calculation result directly guides the actual adjustment of the motor speed to ensure energy efficiency optimization.

[0104] Update the motor speed setting, input the new speed parameters calculated directly into the motor control unit, and make actual speed adjustments to the device. During the adjustment process, continuously monitor the current and voltage readings of the device to track the adjustment effect in real time to ensure that the new settings can reduce energy consumption and improve cleaning efficiency in actual operation. By comparing the data before and after the adjustment, a significant decrease in energy consumption was observed, which shows that the adjustment strategy is effective. Through these adjustments, ensure that the sweeper meets the cleaning standards while reducing unnecessary energy waste and achieving the goal of energy efficiency optimization. Systematically collect performance data after adjustment, verify the actual impact of energy efficiency improvement measures, and obtain energy efficiency optimization results.

[0105] The steps to obtain the comprehensive operation evaluation results are as follows:

[0106] Based on the energy efficiency optimization results, monitor and analyze the operating efficiency of the sweeper to obtain integrated data;

[0107] Perform efficiency analysis on the integrated data and calculate the operating efficiency percentage using the following formula:

[0108]

[0109] Among them, E eff Indicates the operating efficiency percentage, O actual is the actual operation output, O expected is the expected operation output;

[0110] Based on the operating efficiency percentage, the motor speed is repeatedly adjusted to optimize the operating efficiency percentage and obtain a comprehensive operating evaluation result.

[0111] Specifically, monitoring and analyzing the operating efficiency of the sweeper involves collecting and integrating the energy efficiency data of the machine under different operating conditions. Through these data, the difference in energy consumption when the machine cleans different types of floors can be observed. For example, the load of the motor is significantly different when working on hard floors and carpets, which is directly related to the formulation of subsequent energy efficiency optimization strategies.

[0112] In the formula, O actual The acquisition steps are as follows: the energy consumption of the sweeper cleaning a standard area is monitored in real time by sensors, and the actual operation output is calculated based on this. expected The steps of obtaining are: based on the equipment design parameters and past performance data, calculate the expected output of the same operation under ideal conditions;

[0113] Calculation process: Set O actual =150,O expected =100, then

[0114]

[0115] This result indicates that the current sweeper operates more efficiently than expected, possibly because the machine encounters fewer obstacles in actual operation or the motor is adjusted to be more efficient.

[0116] Based on the operating efficiency percentage, repeatedly adjusting the motor speed involves real-time adjustment of the motor control parameters. This process requires adjusting the motor's power output based on real-time monitoring data to ensure that the machine achieves the best cleaning effect without increasing excessive energy consumption. The steps to optimize the operating efficiency percentage involve analyzing the impact of different floor types on the cleaning effect. The adjustment strategy needs to consider the impact of floor material on friction. For example, the high friction characteristics of carpets require the motor to provide a higher speed to maintain cleaning efficiency, while hard floors may require a lower speed to reduce energy consumption.

[0117] The present invention provides a method for controlling the lifting of a sweeping machine gearbox, comprising the following steps:

[0118] The laser sensor and infrared sensor are used to measure the material and slope of the ground, and the acoustic sensor is used to detect the degree of pollution. The data is calculated and integrated to determine the ground type and the corresponding cleaning requirements, and the ground type determination result is obtained;

[0119] According to the ground type determination result, the preset thresholds of hard ground and carpet are compared, the gearbox speed and lifting frequency are adjusted, and the gearbox adjustment result is generated;

[0120] Current and voltage sensors are used to record and analyze energy consumption, the sweeper motor speed and brush pressure are adjusted based on the gearbox adjustment results, and the operating efficiency is evaluated to obtain a comprehensive operating evaluation result.

[0121] See also Figure 2-4 The present invention provides a gear box lifting structure for a sweeping machine, comprising a frame 1, a gear box housing 3 is installed on the inner side of the frame 1, a motor 2 is fixedly installed on the top surface of the gear box housing 3, a motor tooth 4 is installed on the output end of the motor 2, a side brush output tooth 5 and a first bevel gear 6 meshing with the motor tooth 4 are rotatably connected to the inner wall of the gear box housing 3, a second bevel gear 7 meshing with the first bevel gear 6 is rotatably connected to the inner wall of the gear box housing 3, a first spur gear 8 is rotatably connected to the inner wall of the gear box housing 3, a screw rod 10 is fixedly installed on the inner side of the frame 1, a second spur gear 9 is rotatably connected to the inner side of the gear box housing 3, a spring 11 is sleeved on the surface of the first spur gear 8, a guide column 12 is fixedly installed on the inner side of the frame 1, a side brush 13 is fixedly installed on the bottom end of the side brush output tooth 5, a gear shaft 14 is installed on the inner wall of the gear box housing 3, the second bevel gear 7 is sleeved on the surface of the gear shaft 14, and an end face ratchet structure is provided at the bottom end of the first spur gear 8 and the top end of the second bevel gear 7.

[0122] Working principle: Ascending process: Motor 2 reverses, and motor teeth 4 drives the first bevel gear 6, which in turn drives the second bevel gear 7 to rotate. The second bevel gear 7 has an end face ratchet structure, which enables it to drive the first spur gear 8 to move up at the same time when it rotates. The movement of the first spur gear 8 is controlled by the pressure of the spring 11 to ensure the engagement with the second bevel gear 7. When the first spur gear 8 contacts the top of the gearbox housing 3, it no longer moves up, but continues to rotate. The rotation of the first spur gear 8 drives the second spur gear 9 to rotate through the internal thread engagement, and the second spur gear 9 realizes the upward movement of the overall gearbox housing 3 by combining with the screw 10 until the limit switch is triggered.

[0123] Descending process: Motor 2 rotates forward, driving the second bevel gear 7 to move downward. At this time, the first spur gear 8 also moves downward due to the pressure of the spring 11 until the second bevel gear 7 returns to the initial position in the gearbox housing 3. After the second bevel gear 7 and the first spur gear 8 return to the initial position, they continue to rotate, thereby driving the second spur gear 9 to rotate. The second spur gear 9 moves downward by meshing with the screw 10, pulling the entire gearbox housing 3 down to the initial position. When the gearbox housing 3 is completely lowered to the initial position, the second bevel gear 7 is disengaged from the limiting step on the gear shaft 14, and the second bevel gear 7 can rotate freely. At this time, the side brush 13 is in normal working condition.

Claims

1. A control system for lifting the gearbox of a sweeping machine, characterized in that: The system comprises: The environmental sensing module uses laser sensors and infrared sensors to measure the ground material and slope, and uses acoustic sensors to detect the degree of pollution. Based on the ground material, ground slope, and degree of pollution, it determines the ground type and cleaning requirements, and generates a ground type judgment. A threshold logic module, according to the ground type determination, sets and compares the thresholds of hard ground and carpet to obtain a threshold comparison result; and uses the threshold comparison result to adjust the gearbox speed and lifting frequency; The energy efficiency monitoring module records energy consumption through current sensors and voltage sensors to obtain real-time energy consumption data; analyzes the real-time energy consumption data, adjusts the motor speed and brush pressure of the sweeper, and generates energy efficiency optimization results; The parameter adjustment feedback module determines the operating efficiency of the sweeper based on the energy efficiency optimization result and obtains a comprehensive operation evaluation result.

2. The control system for lifting the gearbox of a sweeping machine according to claim 1, characterized in that: The acquisition steps of the ground type determination are: Use laser sensors and infrared sensors to measure ground material and slope, and use acoustic sensors to detect pollution levels, integrating ground material, ground slope and pollution levels to obtain comprehensive ground information; Analyze the characteristics of ground material, slope and pollution degree according to the comprehensive ground information, and compare them with the preset ground type standard to obtain the ground type analysis result; Based on the ground type analysis result, the ground type is identified and determined to obtain a ground type determination.

3. The control system for lifting the gearbox of a sweeping machine according to claim 1, characterized in that: The steps for obtaining the threshold comparison result are: According to the ground type determination, the thresholds of hard ground and carpet are set, and the threshold of hard ground is set to T h , the threshold of the carpet is set to T c ; Comparison of hard ground threshold T h and carpet threshold T c , calculate the threshold difference.

4. The control system for lifting the gearbox of a sweeping machine according to claim 1, characterized in that: The steps of adjusting the gearbox speed and lifting frequency using the threshold comparison result are as follows: According to the threshold comparison result, the reference speed coefficient value is adjusted; Calculate a new gearbox speed by using the adjustment reference speed coefficient value and combining it with the current gearbox speed S0; Based on the new gearbox speed, the lifting frequency F is calculated.

5. The control system for lifting the gearbox of a sweeping machine according to claim 1, characterized in that: The steps for acquiring the real-time energy consumption data are as follows: The current sensor and the voltage sensor work synchronously to monitor the current and voltage changes of the sweeping machine in real time and obtain the monitoring data of the current and voltage; Integrate the collected current and voltage monitoring data and convert the monitoring data into real-time energy consumption data.

6. The control system for lifting the gearbox of a sweeping machine according to claim 1, characterized in that: The steps for obtaining the energy efficiency optimization result are: Analyze the real-time energy consumption data, determine the current energy consumption mode of the sweeper, and obtain energy consumption analysis results; According to the energy consumption analysis results, an adjustment target is set, and the motor speed that needs to be adjusted is calculated to match the cleaning requirements and energy efficiency standards of the floor type; Implement motor speed adjustments, update motor speed settings, and continuously monitor real-time energy consumption data to achieve energy efficiency optimization results.

7. The control system for lifting the gearbox of a sweeping machine according to claim 1, characterized in that: The steps for obtaining the comprehensive operation evaluation results are as follows: Based on the energy efficiency optimization results, monitor and analyze the operating efficiency of the sweeper to obtain integrated data; performing efficiency analysis on the integrated data to calculate an operating efficiency percentage; Based on the operating efficiency percentage, the motor speed is repeatedly adjusted to optimize the operating efficiency percentage and obtain a comprehensive operating evaluation result.

8. A method for controlling the lifting of a sweeping machine gearbox, characterized in that: The control system for lifting the gearbox of a sweeping machine according to any one of claims 1 to 7 comprises the following steps: The laser sensor and infrared sensor are used to measure the material and slope of the ground, and the acoustic sensor is used to detect the degree of pollution. The data is calculated and integrated to determine the ground type and the corresponding cleaning requirements, and the ground type determination result is obtained; According to the ground type determination result, the preset thresholds of hard ground and carpet are compared, the gearbox speed and lifting frequency are adjusted, and the gearbox adjustment result is generated; Current and voltage sensors are used to record and analyze energy consumption, the sweeper motor speed and brush pressure are adjusted based on the gearbox adjustment results, and the operating efficiency is evaluated to obtain a comprehensive operating evaluation result.

9. A sweeping machine gearbox lifting structure, characterized in that: The control system for lifting the gearbox of a sweeping machine according to any one of claims 1 to 7 comprises a frame (1), a gearbox housing (3) is installed on the inner side of the frame (1), a motor (2) is fixedly installed on the top surface of the gearbox housing (3), a motor tooth (4) is installed on the output end of the motor (2), the inner wall of the gearbox housing (3) is rotatably connected to a side brush output tooth (5) meshing with the motor tooth (4) and a first bevel gear (6), the inner wall of the gearbox housing (3) is rotatably connected to a second bevel gear (7) meshing with the first bevel gear (6), and the inner wall of the gearbox housing (3) is rotatably connected to a side brush output tooth (5) meshing with the motor tooth (4). A first spur gear (8) is provided, a screw rod (10) is fixedly mounted on the inner side of the frame (1), a second spur gear (9) is rotatably connected to the inner side of the gear box housing (3), a spring (11) is sleeved on the surface of the first spur gear (8), a guide column (12) is fixedly mounted on the inner side of the frame (1), a side brush (13) is fixedly mounted on the bottom end of the side brush output tooth (5), a gear shaft (14) is mounted on the inner wall of the gear box housing (3), the second bevel gear (7) is sleeved on the surface of the gear shaft (14), and an end face ratchet structure is provided at the bottom end of the first spur gear (8) and the top end of the second bevel gear (7).

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