Chassis with function of preventing breakage and damage of limiting piece, method and operation machine
A technology of limiting parts and functions, applied in drilling equipment and methods, earthwork drilling, vehicle parts, etc., can solve problems such as damage and pin insertion fracture, and achieve the effect of ensuring safe operation
Active Publication Date: 2021-09-07
SANY HEAVY MACHINERY
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Problems solved by technology
During use, there is a problem that the pin is still inserted, and the telescopic hydraulic cylinder operates, which leads to the problem of breakage and damage of the pin.
Method used
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[0059] 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 work fall within the protection scope of the present invention.
[0060] 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 orientation or p...
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The invention provides a chassis with a function of preventing breakage and damage of a limiting piece, a method and an operation machine. The chassis comprises a main frame, a left walking frame, a right walking frame, the limiting pieces, a driving mechanism and a safety circuit. The left walking frame and the right walking frame are respectively connected with the main frame, and are positioned with the main frame through the plurality of limiting pieces; the driving mechanism is arranged on the main frame and is used for realizing extension and retraction of the left walking frame and the right walking frame; the safety circuit is connected with the driving mechanism and the limiting pieces and used for feeding back the state of the limiting pieces to the driving mechanism. When any limiting piece is in the limiting state, the safety circuit and the driving mechanism are in a disconnection state, and the driving execution circuit of the driving mechanism is disconnected. Through the arrangement of the safety circuit, monitoring of the limiting state of the limiting piece is achieved, meanwhile, the driving mechanism controls the left walking frame and the right walking frame according to the monitoring result, and safe operation of equipment is guaranteed.
Description
technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a chassis, a method and an operating machine with the function of preventing the breakage and damage of a limiting member. Background technique [0002] At present, most of the traveling devices of the chassis of the rotary drilling rig adopt a retractable form: generally divided into two modes, one is the fully unfolded working mode; the other is the non-widening transportation mode. In order to improve the reliability and safety of the traveling device, the main frame, the left walking frame and the right walking frame will be limited by the pin limit method. It is guaranteed that in the two modes, if the limit of the telescopic hydraulic cylinder fails, the bolt realizes the mechanical limit. The limiting mode realized by inserting the existing bolt into the limiting hole is to rely on the material strength of the bolt itself. It is necessary to ensure that the...
Claims
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IPC IPC(8): B62D21/18B60R16/02E21B7/02
CPCB62D21/18B60R16/02E21B7/02
Inventor 徐褚郑春红
Owner SANY HEAVY MACHINERY