CN-122016358-A - Method and system for testing climbing capacity of excavator

CN122016358ACN 122016358 ACN122016358 ACN 122016358ACN-122016358-A

Abstract

The invention relates to the technical field of engineering machinery, and provides a method and a system for testing climbing capacity of an excavator, wherein the method and the system are used for acquiring state parameters of a travelling motor of the excavator, determining a climbing traction calculation equation of the excavator, and determining influence parameters influencing the climbing capacity according to a climbing traction algorithm equation; the method comprises the steps of obtaining real-time state parameters of the excavator, constructing a calculation equation of maximum evaluation climbing capacity of the excavator by utilizing influence parameters, determining a maximum climbing angle, judging whether the maximum climbing angle meets a climbing angle design value or not according to the maximum climbing angle, and finishing dynamic climbing capacity test.

Inventors

ZHANG CHUNHAI
WANG MENG
LIU HONGWEI
CHEN HONGQIAN
JIANG XUESONG
ZHANG SHAOJIE

Assignees

雷沃重工集团有限公司
潍柴(青岛)智慧重工有限公司

Dates

Publication Date: 20260512
Application Date: 20260128

Claims (10)

1. A method for testing climbing capacity of an excavator is characterized in that, Acquiring state parameters of a walking motor of the excavator, determining a climbing traction calculation equation of the excavator, and determining influence parameters influencing climbing capacity according to the climbing traction algorithm equation; Acquiring real-time state parameters of the excavator, constructing a calculation equation of maximum evaluation climbing capacity of the excavator by utilizing the influence parameters, and determining a maximum climbing angle; Judging whether the design value of the climbing angle is met according to the maximum climbing angle.
2. The method of claim 1, wherein the travel motor status parameters include left motor pressure, right motor pressure, motor displacement, and wherein the excavator climbing traction calculation equation: wherein F is the actual traction force under the slope angle, P is the pressure of the left and right sides of the excavator walking motor P, q is the displacement of the excavator walking motor, and eta is the total efficiency (0.85) of the volumetric efficiency and the mechanical efficiency of the excavator walking motor; the speed reduction ratio of the excavator walking motor is set, and r is the radius of the driving wheel of the excavator walking motor.
3. The method for testing the climbing capacity of the excavator according to claim 2, wherein the influencing parameter is motor pressure according to an equation of the climbing traction algorithm of the excavator, only walking motor pressure is related to an actual climbing capacity activity variable of the excavator, and other quantities are constant, so that the maximum climbing capacity of the excavator is estimated and tested to be related to the climbing process pressure of the walking motor.
4. The method for testing the climbing capacity of an excavator according to claim 1, wherein the real-time state parameter of the excavator comprises an actual climbing real-time angle of the excavator, wherein the maximum climbing angle reflects the maximum climbing capacity of the excavator, and the calculation equation of the maximum estimated climbing capacity of the excavator is as follows: for the maximum climbing angle, Setting rated pressure for excavator hydraulic system The real-time angle of climbing of the actual excavator is obtained, P is a larger value of a left motor or a right motor of the excavator walking, and Rt is a friction coefficient of different road conditions.
5. An excavator climbing capability test system, comprising: The pressure sensing module is used for acquiring state parameters of a walking motor of the excavator; The whole vehicle control module determines a climbing traction calculation equation of the excavator, and determines influence parameters influencing climbing capacity according to the climbing traction algorithm equation; the gyroscope detection module is used for acquiring state parameters of the walking motor; The whole vehicle control module utilizes the influence parameters to construct a calculation equation of the maximum evaluation climbing capacity of the excavator, and determines the maximum climbing angle; and the data analysis module is used for judging whether the design value of the climbing angle is met according to the maximum climbing angle.
6. The system for testing the climbing capacity of the excavator according to claim 5, further comprising a signal processing system, wherein the signal processing system comprises a signal amplifying unit, a signal conversion unit, a signal synchronization unit and a signal analysis module, the walking motor state parameters collected by the pressure sensing module and the walking motor state parameters collected by the gyroscope detection module are simultaneously transmitted to the signal synchronization unit through the signal conversion unit, the whole vehicle control module is connected with the signal analysis module, and the signal analysis module is connected with the signal synchronization unit.
7. The system according to claim 6, wherein the signal synchronization unit transmits the processed data to the signal storage module, the signal storage module transmits the signal to the data analysis module, and the data analysis module transmits the signal to the remote terminal display module through the data transmission module.
8. The system for testing the climbing capacity of the excavator according to claim 6, wherein the power module is electrically connected with the signal acquisition and processing system, the power module is electrically connected with the pressure sensing module, and the power module is electrically connected with the gyroscope detection module.
9. The system for testing the climbing capacity of an excavator according to claim 5, wherein the pressure sensing module is installed at an oil inlet and an oil outlet of a traveling motor of the excavator.
10. The system of claim 5, wherein the gyroscope detection module is mounted below the chassis frame of the excavator.

Description

Method and system for testing climbing capacity of excavator Technical Field The invention relates to the technical field of engineering machinery, in particular to a method and a system for testing climbing capacity of an excavator. Background The invention relates to the technical field of engineering machinery, in particular to equipment and a method for testing the climbing capacity of an excavator, which are suitable for measuring and verifying the climbing capacity of the whole excavator at different angles by different excavators, and analyzing the maximum adaptive climbing angle or climbing capacity of the whole excavator according to test data results. In the field of engineering machinery, the excavator is gradually widely applied, and the climbing capacity of the excavator is different under different working conditions (dry hard soil, loose sand and stone and wet slimy land); the conventional measuring method measures the limit climbing capacity of the excavator through correcting or adjusting the climbing angle scheme, the maximum actual climbing capacity cannot be comprehensively estimated by the prior art measurement, and the limit climbing capacity test is difficult to realize. Disclosure of Invention In order to achieve the above object, the present invention provides a method for testing climbing ability of an excavator, Acquiring state parameters of a walking motor of the excavator, determining a climbing traction calculation equation of the excavator, and determining influence parameters influencing climbing capacity according to the climbing traction algorithm equation; Acquiring real-time state parameters of the excavator, constructing a calculation equation of maximum evaluation climbing capacity of the excavator by utilizing the influence parameters, and determining a maximum climbing angle; Judging whether the design value of the climbing angle is met according to the maximum climbing angle. Further, the running motor state parameters include left motor pressure, right motor pressure, motor displacement, wherein the excavator climbing traction force calculation equation: wherein F is the actual traction force under the slope angle, P is the pressure of the left and right sides of the excavator walking motor P, q is the displacement of the excavator walking motor, and eta is the total efficiency (0.85) of the volumetric efficiency and the mechanical efficiency of the excavator walking motor; the speed reduction ratio of the excavator walking motor is set, and r is the radius of the driving wheel of the excavator walking motor. Furthermore, according to the equation of the climbing traction algorithm of the excavator, the influence parameter is motor pressure, only walking motor pressure is used for calculating the actual climbing capacity activity variable of the excavator, and other quantities are constant, so that the maximum climbing capacity of the test excavator is estimated and related to the climbing process pressure of the walking motor. Further, the real-time state parameters of the excavator comprise real climbing real-time angles of the excavator, wherein the maximum climbing angle reflects the maximum climbing capacity of the excavator, and the calculation equation of the maximum estimated climbing capacity of the excavator is as follows: for the maximum climbing angle, Setting rated pressure for excavator hydraulic systemThe real-time angle of climbing of the actual excavator is obtained, P is a larger value of a left motor or a right motor of the excavator walking, and Rt is a friction coefficient of different road conditions. According to a second aspect of the embodiments of the present disclosure, there is provided an excavator climbing capability test system, which specifically includes: The pressure sensing module is used for acquiring state parameters of a walking motor of the excavator; The whole vehicle control module determines a climbing traction calculation equation of the excavator, and determines influence parameters influencing climbing capacity according to the climbing traction algorithm equation; the gyroscope detection module is used for acquiring state parameters of the walking motor; The whole vehicle control module utilizes the influence parameters to construct a calculation equation of the maximum evaluation climbing capacity of the excavator, and determines the maximum climbing angle; and the data analysis module is used for judging whether the design value of the climbing angle is met according to the maximum climbing angle. Further, the intelligent walking motor system further comprises a signal processing system, the signal processing system comprises a signal amplifying unit, a signal converting unit, a signal synchronizing unit and a signal analyzing module, the walking motor state parameters collected by the pressure sensing module are simultaneously transmitted to the signal synchronizing unit through the signal converting unit, the whole