Three-freedom-degree hinge-joint chassis of engineering machinery and obstacle-navigation control method
A technology of construction machinery and degrees of freedom, applied in vehicle components, substructure, transportation and packaging, etc., can solve the problem that vehicles cannot pass through deep V-shaped obstacle roads, and achieve the effect of improving passability
Inactive Publication Date: 2016-11-09
JILIN UNIV
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Problems solved by technology
[0004] The purpose of the present invention is to provide a three-degree-of-freedom articulated chassis for construction machinery and an obstacle-surmounting control method, which overcomes the limitation that the chassis of construction machinery cannot cross large-sized raised obstacles in the prior art, and can also solve the problem that vehicles cannot pass through deep obstacles. The problem of V-shaped obstacle road surface, improve the passability and maneuverability of engineering vehicles
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[0040] The invention will be described in detail below in conjunction with the accompanying drawings.
[0041] figure 1 It is a schematic diagram of the overall structure of the three-degree-of-freedom articulated chassis of construction machinery of the present invention, which is mainly composed of the front body 2, the three-degree-of-freedom articulation device 1 and the rear car body 3; 2 are connected, and the rear end of the three-degree-of-freedom hinge device 1 is connected with the rear body 3; Among them, the yaw degree of freedom is used to realize the articulated steering function of the chassis, the roll degree of freedom is used to improve the rolling stability of the vehicle when the wheels on one side of the vehicle cross obstacles, and the pitch degree of freedom is used to realize the vehicle's crossing of large-sized raised obstacles objects and through deep V-shaped obstacles.
[0042] figure 2 It is a structural schematic diagram of the three-degree-of-...
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The invention discloses a three-freedom-degree hinge-joint chassis of engineering machinery and an obstacle-navigation control method. The chassis comprises a front car body, a rear car body and a three-freedom-degree hinge-joint device, wherein the front end of the three-freedom-degree hinge-joint device is connected to the front car body, and the rear end is connected to the rear car body; the front car body has a yaw freedom degree, a lateral inclination freedom degree and a pitching freedom degree relative to the rear car body; and because of the added pitching freedom degree, pitching motion can be generated between the front car body and the rear car body. In this way, when a car meets a large-scale obstacle, the pitching angle between the front car body and the rear car body is adjusted to form an inverse V-shaped, so that the large-scale obstacle can be prevented from scraping or colliding the chassis; and when the car passes a deep V-shaped terrain, the pitching angle between the front car body and the rear car body is adjusted to form a V-shaped, so that the front end of the car is prevented from colliding the V-shaped terrain, and thus trafficability of the car is increased.
Description
technical field [0001] The invention belongs to the technical field of vehicle chassis, and in particular relates to a three-degree-of-freedom articulated chassis for engineering machinery and a control method for overcoming obstacles. Background technique [0002] In emergency rescue, operations such as landslide clearance, road dredging, reinforced concrete crushing and cutting, and rescue site clearance are mainly completed by construction machinery such as excavators, loaders, and cranes. It can be seen that construction machinery plays a huge role in emergency rescue. However, the existing construction machinery lacks a special chassis for high-mobility rescue vehicles, which has poor maneuverability and cannot pass through narrow areas and complex terrains, resulting in untimely and inefficient rescue and aggravating the damage. Due to the existing chassis is mostly one-piece structure, when the vehicle passes through a raised obstacle, it often scratches the chassis, ...
Claims
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Login to View More IPC IPC(8): B62D21/15B62D21/18
CPCB62D21/15B62D21/18
Inventor 李学飞王继新李健曹玥倪志学仝展汪昶李博宇
Owner JILIN UNIV