Hydraulic control system for stabilizing chassis of overhead working truck

Abstract

The invention discloses a hydraulic control system for stabilizing a chassis of an overhead working truck, and relates to the technical field of overhead working trucks, the hydraulic control system comprises a pair of floating oil cylinders which are respectively arranged at two ends of an axle, a rod cavity and a rodless cavity of each floating oil cylinder are mutually connected through a pipeline, and two ends of each floating oil cylinder are respectively connected with the chassis; the hydraulic control unit is used for adjusting the oil flow direction and controlling the telescopic action of the floating oil cylinder so as to ensure the stability of the chassis; the regulating valve is used for controlling the oil flow direction and regulating the telescopic state of the floating oil cylinder. Floating oil cylinders are arranged at the two ends of an axle, a hydraulic control system is combined, automatic and stable adjustment of a vehicle chassis is achieved, the floating oil cylinders respond to the uneven ground, stability is guaranteed by adjusting the telescopic action, a pull rod valve is introduced to optimize the oil flow direction, hydraulic efficiency is improved, energy loss is reduced, and a pressure sensor monitors the inclination angle; the system is automatically adjusted when the threshold value is exceeded, the response speed and stability are improved, and the service life is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of aerial work vehicles, and specifically relates to a hydraulic control system for the chassis stability of an aerial work vehicle. Background Technique

[0002] Aerial work vehicles are widely used in the field of aerial work. Especially in situations where vehicle stability is required, aerial work vehicles usually include multiple adjustable axles and cylinders to maintain the stability of the vehicle in different working states. In particular, during driving, uneven road surfaces can cause the vehicle to tilt. Therefore, an efficient hydraulic system is needed to adjust the tilt angle of the vehicle body.

[0003] Traditional hydraulic leveling systems usually use floating cylinders to adjust the vehicle chassis, but these systems have problems of energy waste and component wear. For example, when the boom is retracted, the chassis leveling requirement is low, and it may still cause the hydraulic system to work frequently, which will accelerate the aging of the equipment and waste energy. Therefore, how to optimize the hydraulic leveling system, especially when the chassis leveling requirement is low, reduce energy waste and improve the service life of the equipment, has become an urgent problem to be solved. Summary of the Invention

[0004] To solve the above technical problems, a hydraulic control system for the chassis stability of an aerial work vehicle is provided, and this technical solution solves the above problems.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A hydraulic control system for the chassis stability of an aerial work vehicle, comprising: A pair of floating cylinders are respectively arranged at both ends of the axle. The rod chamber and the rodless chamber of each floating cylinder are connected to each other through pipelines, and both ends of the floating cylinder are respectively connected to the vehicle chassis; A hydraulic control unit is connected to two pipelines and is used to adjust the oil flow direction and control the telescopic movement of the floating cylinder to ensure the stability of the vehicle chassis; A regulating valve is used to control the oil flow direction and adjust the telescopic state of the floating cylinder to achieve the stability of the vehicle body; The pull rod valve changes the pressure difference between the rod chamber and the rodless chamber of the floating cylinder by controlling the oil inlet and outlet paths, and further adjusts the telescopic state of the cylinder. In the initial state, the pull rod valve is not connected to the oil circuit to avoid unnecessary energy consumption; in the first leveling state and the second leveling state, the oil flow direction is changed to automatically level the vehicle chassis according to the tilt direction, improving the driving stability and safety. This control method improves the operating efficiency of the hydraulic system and reduces the energy loss caused by frequent start and stop.

[0006] Preferably, the hydraulic control unit includes a pull rod valve which has an initial state, a first leveling state and a second leveling state. The flow direction of the oil fluid is adjusted by this valve to realize the telescopic movement of the floating oil cylinder; The tilt angle of the vehicle body is monitored in real time through a pressure sensor installed on the chassis or axle. When the tilt of the vehicle body exceeds the set threshold, the hydraulic control unit automatically adjusts the flow direction of the oil fluid by adjusting the working state of the pull rod valve, thereby stabilizing the vehicle body. This solution can accurately respond to uneven ground conditions, avoid frequent adjustment actions, and improve the system stability.

[0007] Preferably, the hydraulic control unit senses the tilt angle of the vehicle body through a pressure sensor and adjusts the working state of the pull rod valve according to the tilt angle to reduce the frequent adjustments caused by uneven ground; This control logic can automatically switch the working mode of the hydraulic control system according to the working state of the vehicle boom. When the boom is deployed, the vehicle needs to maintain horizontal stability to ensure the safety of the operation; while when the boom is retracted, the chassis has a lower requirement for stability, and the system will automatically enter the energy-saving mode, reducing the working frequency of the hydraulic system, effectively saving energy and extending the service life of the hydraulic system.

[0008] Preferably, it further includes a controller. When the boom of the vehicle is deployed, the controller automatically enters the leveling state to keep the chassis stable; when the boom is retracted, the controller enters the energy-saving mode to reduce the leveling requirement, thereby saving energy; The pull rod valve is designed with an efficient flow path layout, reducing internal friction and fluid resistance, thereby reducing energy loss. In a high-frequency operation environment, the wear-resistant design and sealing technology of the pull rod valve effectively improve its service life, enabling the hydraulic system to continuously and stably operate under harsh conditions. Such a design not only optimizes the performance but also reduces the maintenance cost.

[0009] Preferably, the structural design of the pull rod valve can reduce the energy loss of the hydraulic system and has high durability during high-frequency operation, thereby increasing the service life of the hydraulic leveling device; This system monitors the oil circuit, oil cylinder, and valve group in real time through installed fault diagnosis sensors. If a fault occurs in the system, an alarm signal will be sent through the control unit and automatically switched to the safe mode to prevent further damage to the system or occurrence of safety accidents. This intelligent diagnosis function improves the safety and stability of the system and reduces the occurrence of accidental faults.

[0010] Preferably, the hydraulic control system includes a fault diagnosis function, which monitors the working states of the oil circuit and oil cylinder in real time, automatically alarms when a fault occurs, and takes protective measures to ensure the safety and stability of the system; The inner and outer diameters of the floating oil cylinder are precisely calculated and optimally designed to ensure that the flow velocity of the hydraulic oil is synchronized with the movement of the oil cylinder piston. This design improves the response speed and accuracy of the system, enabling it to respond more quickly to uneven ground conditions and precisely control the telescopic movement of the oil cylinder, thereby rapidly restoring the stability of the chassis. The pressure, flow rate, and temperature parameters in the oil circuit are monitored through sensors to detect any abnormalities in the oil flow. The displacement sensor installed on the oil cylinder is used to monitor the telescopic state and pressure changes of the oil cylinder in real time, ensuring that the oil cylinder operates normally within a predetermined range. The system analyzes the real-time monitoring data through a preset fault diagnosis algorithm. When an abnormality is detected, the system triggers a fault alarm. Among them, the formula for the fault diagnosis algorithm is: In the formula, Y t is the data prediction value at time t, μ is the mean value, is the model parameter, and ∈ t is the white noise term; The predicted value is compared with the safety threshold. If it is greater than or equal to the safety threshold, it is marked as abnormal data. When the system detects an abnormality, the hydraulic control system will automatically send an alarm signal to alert the operator, and the fault information will be displayed on the screen. In case of a fault, the hydraulic control system will automatically take protective measures, including stopping the hydraulic action, closing the valves, and restricting the oil pressure. All fault information and monitoring data are recorded in the system log.

[0011] Preferably, the inner and outer diameters of the floating oil cylinder are optimally designed to ensure that the flow velocity of the hydraulic oil is synchronized with the movement of the floating oil cylinder, improving the response speed and control accuracy of the system. The check valve is installed in the pipeline of the hydraulic system to prevent the oil from flowing back when the system pressure fluctuates, ensuring that the oil only flows along the predetermined path. This design can prevent the unstable oil flow caused by the tilting of the vehicle body, avoid pressure fluctuations or flow rate out-of-control in the hydraulic system, and improve the reliability of the system.

[0012] Preferably, multiple check valves are installed on the pipeline of the control unit to prevent the oil from flowing back and ensure the stability of the system when the vehicle body tilts. All connection components of the hydraulic system, such as pipelines, valves, and oil cylinders, are made of high-performance materials that are resistant to high pressure and wear, to meet the usage requirements of the aerial work platform in harsh environments. These high-strength components ensure that the system can operate efficiently and stably for a long time, reduce faults caused by wear, and thus lower the maintenance cost and frequency.

[0013] Preferably, all connecting components in the system are made of materials resistant to high pressure and wear, increasing the service life of the system and ensuring long-term efficient and stable operation.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: The present invention proposes to set floating cylinders at both ends of the axle, combined with a hydraulic control system, to achieve automatic and smooth adjustment of the vehicle chassis. The floating cylinders respond to uneven ground and ensure smoothness by adjusting the telescopic action. A pull rod valve is introduced to optimize the oil flow direction, improve the hydraulic efficiency and reduce energy loss. The pressure sensor monitors the tilt angle and automatically adjusts the system when the threshold is exceeded, improving the response speed and stability. The system intelligently switches to an energy-saving mode according to the working state of the boom, extending the service life. The efficient oil circuit design and check valve ensure the stability of the system. At the same time, the functions of fault diagnosis and safety protection are integrated. Using high-pressure-resistant materials improves durability, and the optimized design of the inner and outer diameters of the floating cylinders enhances the response accuracy to ensure the smoothness of the chassis. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a system framework diagram of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0016] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments in the following description are only examples, and those skilled in the art can think of other obvious variations.

[0017] Referring to Figure 1 As shown, a hydraulic control system for the smoothness of an aerial work platform chassis includes: A pair of floating cylinders are respectively arranged at both ends of the axle. The rod chamber and the rodless chamber of each floating cylinder are connected to each other through pipelines, and both ends of the floating cylinder are respectively connected to the vehicle chassis; A hydraulic control unit is connected to two pipelines, and is used to adjust the oil flow direction and control the telescopic action of the floating cylinder to ensure the smoothness of the vehicle chassis; A regulating valve is used to control the oil flow direction and adjust the telescopic state of the floating cylinder to achieve the smoothness of the vehicle body; The pull rod valve changes the pressure difference between the rod chamber and the rodless chamber of the floating cylinder by controlling the oil inlet and outlet paths, and then adjusts the telescopic state of the cylinder. In the initial state, the pull rod valve is not connected to the oil circuit to avoid unnecessary energy consumption; in the first leveling state and the second leveling state, the oil flow direction is changed to make the vehicle chassis automatically level according to the tilt direction, improving the driving stability and safety. This control method improves the operation efficiency of the hydraulic system and reduces the energy loss caused by frequent start and stop.

[0018] The hydraulic control unit includes a pull rod valve. The pull rod valve has an initial state, a first leveling state, and a second leveling state. By adjusting the flow direction of the oil through this valve, the telescopic movement of the floating cylinder is achieved. Through a pressure sensor installed on the chassis, the tilt angle of the vehicle body is monitored in real time. When the tilt of the vehicle body exceeds the set threshold, the hydraulic control unit automatically adjusts the flow direction of the oil by adjusting the working state of the pull rod valve, thereby stabilizing the vehicle body. This solution can accurately respond to uneven ground conditions, avoid frequent adjustment actions, and improve the system stability.

[0019] The hydraulic control unit senses the tilt angle of the vehicle body through the pressure sensor and adjusts the working state of the pull rod valve according to the tilt angle to reduce the frequent adjustments caused by uneven ground. This control logic can automatically switch the working mode of the hydraulic control system according to the working state of the vehicle boom. When the boom is extended, the vehicle needs to maintain horizontal stability to ensure the safety of the operation; when the boom is retracted, the chassis has a lower requirement for stability, and the system will automatically enter the energy-saving mode, reducing the working frequency of the hydraulic system, effectively saving energy and extending the service life of the hydraulic system.

[0020] The system includes a controller. When the boom of the vehicle is extended, the controller automatically enters the leveling state to keep the chassis stable; when the boom is retracted, the controller enters the energy-saving mode, reducing the leveling requirement, thereby saving energy. The pull rod valve is designed with an efficient flow path layout, reducing internal friction and fluid resistance, thereby reducing energy loss. In a high-frequency operation environment, the wear-resistant design and sealing technology of the pull rod valve effectively improve its service life, enabling the hydraulic system to continuously and stably work under harsh conditions. Such a design not only optimizes the performance but also reduces the maintenance cost.

[0021] The structural design of the rod valve can reduce the energy loss of the hydraulic system and has high durability during high-frequency operation, thereby increasing the service life of the hydraulic leveling device. This system monitors the oil circuit, oil cylinder, and valve group in real time through installed fault diagnosis sensors. If a fault occurs in the system, an alarm signal will be sent through the control unit and it will automatically switch to the safety mode to prevent further damage to the system or occurrence of safety accidents. This intelligent diagnosis function improves the safety and stability of the system and reduces the occurrence of accidental faults.

[0022] The hydraulic control system includes a fault diagnosis function, which monitors the working states of the oil circuit and oil cylinder in real time, automatically alarms when a fault occurs, and takes protective measures to ensure the safety and stability of the system. The pressure, flow rate and temperature parameters in the oil circuit are monitored through sensors to detect whether the oil flow is abnormal. The telescopic state and pressure change of the oil cylinder are monitored in real time through the displacement sensor installed on the oil cylinder to ensure that the oil cylinder works normally within a predetermined range. The system analyzes the real-time monitoring data through a preset fault diagnosis algorithm. When an abnormality is detected, the system triggers a fault alarm. Among them, the formula of the fault diagnosis algorithm is: In the formula, Y t is the data prediction value at time t, μ is the mean value, is the model parameter, ∈ t is the white noise term; The predicted value is compared with the safety threshold, and the data greater than or equal to the safety threshold is marked as abnormal data. When the system detects an abnormality, the hydraulic control system will automatically send an alarm signal to remind the operator, and the fault information is displayed on the screen. When a fault occurs, the hydraulic control system will automatically take protective measures, including stopping the hydraulic action, closing the valve and restricting the oil pressure. All fault information and monitoring data are recorded in the system log.

[0023] The inner diameter and outer diameter of the floating oil cylinder are optimized to ensure that the flow velocity of the hydraulic oil is synchronized with the action of the floating oil cylinder, improving the response speed and control accuracy of the system. The check valve is installed in the pipeline of the hydraulic system to prevent the oil from flowing back when the system pressure fluctuates, ensuring that the oil only flows along the predetermined path. This design can prevent the unstable oil flow caused by the tilting of the vehicle body, avoid the pressure fluctuation or flow rate out of control of the hydraulic system, and improve the reliability of the system. The inner and outer diameters of the floating oil cylinder are accurately calculated and optimized to ensure that the flow velocity of the hydraulic oil is synchronized with the action of the oil cylinder piston. This design improves the response speed and accuracy of the system, can respond more quickly to the uneven ground conditions, and precisely control the telescopic action of the oil cylinder, so as to quickly restore the smoothness of the chassis.

[0024] Multiple check valves are set on the pipeline of the control unit to prevent the oil from flowing back and ensure the stability of the system when the vehicle body tilts. All the connecting components of the hydraulic system, such as pipelines, valves and oil cylinders, are made of high-performance materials with high pressure resistance and wear resistance to meet the use requirements of the aerial work platform in harsh environments. These high-strength components ensure that the system can operate efficiently and stably for a long time, reduce the faults caused by wear, and thus reduce the maintenance cost and frequency.

[0025] All connecting components in the system are made of materials resistant to high pressure and wear, increasing the service life of the system and ensuring long-term efficient and stable operation. The aerial work platform also includes a chassis, axles, and a hydraulic system. The hydraulic system includes an oil tank, a supply pump, an oil supply pipeline, and an oil return pipeline. The oil tank is used to store hydraulic oil. The inlet end of the supply pump is connected to the oil tank, and the outlet end is connected to the oil supply pipeline. The oil return pipeline is connected to the oil tank; In this design, the oil tank of the hydraulic system stores hydraulic oil. The supply pump transports the hydraulic oil to the hydraulic cylinder through the oil supply pipeline, and the oil return pipeline is responsible for returning the hydraulic oil in the system to the oil tank. Such an oil circuit design ensures the closed-loop circulation of the hydraulic system, improving the efficiency and continuous working ability of the system. In addition, the reasonable design of the control of the oil pump and the oil supply pipeline enables the system to stably supply hydraulic oil under different working conditions, further ensuring the smoothness and safety of the chassis of the aerial work platform.

[0026] The usage process of the present invention is as follows: Step 1: Ensure that the oil tank of the hydraulic system is full of hydraulic oil, and check whether the oil pump and the oil supply pipeline are properly connected; Step 2: Turn on the power system of the aerial work platform and check the battery power and the circuit; Step 3: Start the supply pump of the hydraulic system and check whether the system is in a normal working state, ensuring that there is no leakage in the oil supply pipeline; Step 4: Check whether the pipeline connections between the rod chamber and the rodless chamber of the floating cylinder are normal, and confirm that there is no abnormal leakage in the cylinder; Step 5: Check the connection between the hydraulic control unit and the two pipelines to ensure the normal function of the oil flow regulation; Step 6: According to the current working state of the vehicle, activate the pull rod valve to adjust the oil flow direction and make the floating cylinder start to work; Step 7: The system continuously monitors the tilting state of the vehicle through a pressure sensor and automatically starts the leveling program; Step 8: When the tilting of the vehicle body exceeds the set threshold, the hydraulic control unit automatically adjusts the pull rod valve to control the telescopic movement of the floating cylinder for automatic leveling; Step 9: Select the first leveling state or the second leveling state according to the need to accurately adjust the smoothness of the chassis; Step 10: Continuously monitor the system pressure through the pressure sensor installed in the system to ensure that there are no excessive or too low fluctuations; Step 11: When the boom of the vehicle is extended, the controller in the hydraulic control system automatically switches to the leveling mode to keep the chassis stable; Step 12: When the boom is retracted, the controller automatically enters the energy-saving mode to reduce the frequent adjustment of the hydraulic system; Step 13: The system design optimizes the oil flow, reducing energy loss through an efficient flow path layout; Step Fourteen: The system monitors the states of the oil circuit, oil cylinders, and valve groups in real time through fault diagnosis sensors and gives alarms in a timely manner; Step Fifteen: If a fault occurs in the system, the hydraulic control unit automatically switches to the safety mode to avoid further damage; Step Sixteen: Through the check valve design, it is ensured that the oil fluid only flows along the predetermined path in the system to prevent backflow; Step Seventeen: According to the feedback of the pressure sensor, adjust the telescopic state of the floating oil cylinder to cope with different ground unevenness; Step Eighteen: Regularly check the quality of the hydraulic oil to ensure that the oil fluid is clean and meets the specified viscosity requirements; Step Nineteen: Conduct regular inspections and maintenance on all hydraulic components in the system to ensure their working stability; Step Twenty: After the work is completed, shut down the hydraulic system and the control unit, and conduct necessary maintenance inspections to ensure that the system is in good condition.

[0027] In summary, the advantages of the present invention are as follows: By arranging floating oil cylinders at both ends of the axle and connecting their rodless chambers and rod chambers through pipelines, the automatic and smooth adjustment of the vehicle chassis is realized. The floating oil cylinder can accurately respond to the ground unevenness, automatically adjust the telescopic action of the oil cylinder, and ensure the smoothness of the vehicle chassis; The pull rod valve is introduced to adjust the oil fluid flow direction and control the telescopic state of the floating oil cylinder. This design can realize the automatic leveling of the vehicle body by changing the oil circuit, effectively improve the operation efficiency of the hydraulic system, reduce energy loss, and avoid frequent start-stop operations; By installing a pressure sensor to monitor the tilt angle of the vehicle body in real time, when the tilt of the vehicle body exceeds the set threshold, the hydraulic control unit automatically adjusts the working state of the pull rod valve to ensure the rapid response of the hydraulic system and improve the system stability and response speed.

[0028] According to the working state of the vehicle boom, the controller can automatically switch the working mode. When the boom is extended, the hydraulic system enters the leveling mode to ensure the smoothness of the vehicle chassis, while when the boom is retracted, the controller automatically enters the energy-saving mode to reduce the working frequency of the hydraulic system, thereby saving energy and prolonging the service life of the system; Adopt an efficient oil circuit layout to reduce internal friction and fluid resistance, improve the energy efficiency of the hydraulic system. At the same time, the check valve design can effectively prevent the backflow of the oil fluid and ensure the stability and reliability of the system; The system integrates a fault diagnosis function, which can monitor the key components of the hydraulic system in real time. When a fault occurs, the system will automatically send an alarm signal and switch to the safety mode to ensure the safe and stable operation of the system and avoid more serious damage or safety accidents; The connecting components of the hydraulic system are made of high-performance materials that are resistant to high pressure and wear, capable of meeting the usage requirements of the aerial work platform in harsh environments, extending the service life of the system and reducing the maintenance frequency; The inner and outer diameters of the floating cylinder are precisely calculated and optimized to ensure that the flow rate of the hydraulic oil is synchronized with the movement of the cylinder piston, thereby improving the response speed and control accuracy of the system and quickly restoring the chassis stability.

[0029] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification is only the principle of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed. The scope of protection claimed by the present invention is defined by the appended claims and their equivalents.

Claims

1. A hydraulic control system for the chassis stability of an aerial work platform, characterized in that, Comprising: A pair of floating cylinders, respectively arranged at both ends of the axle. The rod chamber and the rodless chamber of each floating cylinder are connected to each other through pipelines, and both ends of the floating cylinder are respectively connected to the vehicle chassis; A hydraulic control unit, which is connected to two pipelines, and is used to adjust the oil flow direction and control the telescopic movement of the floating cylinder to ensure the smoothness of the vehicle chassis; A regulating valve, which is used to control the oil flow direction and adjust the telescopic state of the floating cylinder to achieve the smoothness of the vehicle body.

2. The hydraulic control system for the chassis stability of an aerial work platform according to claim 1, characterized in that, The hydraulic control unit includes a pull rod valve, which has an initial state, a first leveling state and a second leveling state. The oil flow direction is adjusted through this valve to achieve the telescopic movement of the floating cylinder.

3. The hydraulic control system for the chassis stability of an aerial work platform according to claim 2, wherein, The hydraulic control unit senses the tilt angle of the vehicle body through a pressure sensor and adjusts the working state of the pull rod valve according to the tilt angle to reduce the frequent adjustment caused by uneven ground.

4. A hydraulic control system for the chassis stability of an aerial work platform according to claim 3, wherein, It also includes a controller. When the boom of the vehicle is unfolded, the controller automatically enters the leveling state to keep the chassis stable; when the boom is retracted, the controller enters the energy-saving mode to reduce the leveling requirement, thereby saving energy.

5. A hydraulic control system for the chassis stability of an aerial work platform according to claim 4, characterized in that, The structural design of the pull rod valve can reduce the energy loss of the hydraulic system and has high durability during high-frequency operation, thereby increasing the service life of the hydraulic leveling device.

6. The hydraulic control system for the chassis stability of an aerial work platform according to claim 5, characterized in that, The hydraulic control system includes a fault diagnosis function, which monitors the working state of the oil circuit and the cylinder in real time, automatically alarms and takes protective measures when a fault occurs, ensuring the safety and stability of the system; The pressure, flow rate and temperature parameters in the oil circuit are monitored through sensors to detect whether the oil flow is abnormal. Through the displacement sensor installed on the cylinder, the telescopic state and pressure change of the cylinder are monitored in real time to ensure the normal operation of the cylinder within a predetermined range; the system analyzes the real-time monitoring data through a preset fault diagnosis algorithm. When an abnormality is detected, the system triggers a fault alarm; Among them, the fault diagnosis algorithm formula is: where Y t is the predicted value of data at time t, μ is the mean value, is the model parameter, and ∈ t is the white noise term; Compare the predicted value with the safety threshold, and mark the value greater than or equal to the safety threshold as abnormal data; When the system detects an abnormality, the hydraulic control system automatically issues an alarm signal to remind the operator, and the fault information is displayed on the screen; When a fault occurs, the hydraulic control system will automatically take protective measures, including stopping the hydraulic action, closing the valve and restricting the oil pressure; All fault information and monitoring data are recorded in the system log.

7. A hydraulic control system for the chassis stability of an aerial work platform according to claim 6, characterized in that, The inner diameter and outer diameter of the floating cylinder are optimized to ensure that the flow rate of the hydraulic oil is synchronized with the movement of the floating cylinder, improving the response speed and control accuracy of the system.

8. A hydraulic control system for the chassis stability of an aerial work platform according to claim 7, characterized in that, A plurality of check valves are arranged on the pipeline of the control unit to prevent the reverse flow of oil and ensure the stability of the system when the tilt of the vehicle body changes.

9. A hydraulic control system for the chassis stability of an aerial work platform according to claim 8, characterized in that, All connecting components in the system are made of materials resistant to high pressure and wear, increasing the service life of the system and ensuring long-term efficient and stable operation.

Images