Excavator and its pushing force control method
A technology of excavator and pushing force, which is applied to mechanically driven excavators/dredgers, earth movers/shovels, construction, etc. It can solve the problem of affecting production efficiency, boom height, and torque limit range that cannot be adjusted in real time and other problems to achieve the effect of reducing the probability of occurrence and high production efficiency
Active Publication Date: 2021-07-16
TAIYUAN HEAVY IND
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Problems solved by technology
The torque limit in the prior art cannot be adjusted in real time according to the actual working conditions. If the output torque limit is too small, it will affect production efficiency. If the output torque limit is too large, the probability of the boom being jacked up is high
Method used
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[0023] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with specific embodiments of the present invention and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts fall within the protection scope of the present invention.
[0024] The technical solutions provided by the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0025] as attached figure 1 As shown, the embodiment of the present invention provides an excavator, and the excavator includes: a base 1, a bucket 2, a stick 3, a boom 4, a pushing unit 5, a lift...
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The invention discloses an excavator and a method for controlling its pushing force. The method includes: a first detection unit detects the telescopic stroke of a bucket, and sends the telescopic stroke to the control unit. The second detection unit detects the lifting stroke of the bucket, and sends the lifting stroke to the control unit. The control unit determines the output torque threshold of the first motor according to the telescopic stroke and the lifting stroke, controls the output torque of the first motor to be equal to the output torque threshold, and outputs a preset pushing force through the pushing unit. The excavator and its pushing force control method of the present invention detect the telescoping stroke and lifting stroke of the bucket, determine the position of the bucket relative to the boom, and then determine the output torque threshold at the current position, so that different working conditions can be obtained in real time The lower output torque threshold, the first motor outputs an output torque equal to the output torque threshold, which not only reduces the occurrence probability of the boom jacking phenomenon, but also has higher production efficiency.
Description
technical field [0001] The invention relates to the technical field of material excavation, in particular to an excavator and a method for controlling its pushing force. Background technique [0002] An excavator is a commonly used equipment for material excavation, which includes: a base, a bucket, a stick, a lifting arm, a rack and pinion pushing device and a lifting device. The boom forms a certain inclination angle with the base, the bottom end is hinged to the base through a pin shaft, and the top end is suspended in the air. The bucket is connected to one end of the stick, and the stick is connected to the lifting arm through a rack and pinion pushing device. The first motor drives the gear to rotate, which makes the rack expand and contract, and then drives the stick to expand and contract. Take control. One end of the lifting device is connected to the second motor on the base, and the other end is connected to the bucket around the top of the boom, and the rotatio...
Claims
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IPC IPC(8): E02F3/30E02F3/36E02F3/43
CPCE02F3/308E02F3/36E02F3/43
Inventor 仝雷强岳海峰王勇澎赵腾云雷正杰温坚石欣杨哲朱海成张宇常远朱涛尉建龙
Owner TAIYUAN HEAVY IND