Crawler belt automatic tensioning device, walking mechanism and automatic tensioning control method
A technology of automatic tensioning device and control method, applied in the direction of fluid pressure actuating device, valve device, crawler vehicle, etc., can solve the problems of low degree of automation and complex control method, and achieve high degree of automation, strong adaptability and saving The effect of human and material resources
Pending Publication Date: 2022-07-12
SANY HEAVY MACHINERY
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[0004] The embodiment of the present invention provides an automatic crawler tensioning device, a traveling mechanism and an automatic tensioning control method to solve the technical problems of low automation of the tensioning mechanism and complicated control methods in the prior art
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[0045] In order to make the purposes, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments These are some embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0046] In the description of the embodiments of the present invention, it should be noted that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right" , "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. indicate the orientation or positional relationship based on the orienta...
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The invention relates to the technical field of engineering machinery, and provides an automatic caterpillar band tensioning device, a walking mechanism and an automatic tensioning control method.The automatic caterpillar band tensioning device comprises an electromagnetic proportional pressure reducing valve, an electromagnetic reversing valve, an electromagnetic proportional unloading valve and two tensioning oil cylinders, and one end of the electromagnetic proportional pressure reducing valve is connected with an oil source pump; the end, away from the electromagnetic proportional pressure reducing valve, of the electromagnetic reversing valve is connected with a first oil way and a second oil way, the first oil way is connected with a rod cavity of the tensioning oil cylinder, and the second oil way is connected with a rodless cavity of the tensioning oil cylinder. The tensioning device further comprises a pressure sensor and a controller, one end of the pressure sensor is connected with the second oil way, the pressure sensor is used for detecting the tensioning pressure value of a tensioning wheel connected with the tensioning oil cylinder, and the pressure sensor, the electromagnetic reversing valve and the electromagnetic proportional pressure reducing valve are all connected with the controller. And according to different external impacts, the controller can adjust the internal pressure for adaptation, and the adaptability is higher.
Description
technical field [0001] The invention relates to the technical field of construction machinery, in particular to an automatic tensioning device for crawler tracks, a traveling mechanism and an automatic tensioning control method. Background technique [0002] Crawler traveling device, corresponding to excavators, road rollers and cranes, has many advantages such as large traction force, low grounding ratio, strong climbing ability, and small turning radius, and has been widely used in the field of construction machinery. During the use of the crawler tensioning device, its pre-tensioning force has a great influence on the running performance of the crawler. If the pre-tensioning force is too large, the rigidity of the crawler will be too large, and the tensioning device will not play a buffering role, and at the same time, the crawler will travel. The increase of the internal friction force of the machine leads to low transmission efficiency and excessive wear of the track; i...
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IPC IPC(8): F15B11/028F15B11/16F15B13/02F15B13/06F16K31/06B62D55/30
CPCF15B11/028F15B11/161F15B13/025F15B13/06F16K31/0603B62D55/30F15B2211/405F15B2211/50554F15B2211/6313F15B2211/857F15B2211/8606
Inventor 乔康张登湑仲保霖
Owner SANY HEAVY MACHINERY