A hitching device, a counterweight device and a hooking method
A technology of counterweight and connecting device, applied in cranes and other directions, can solve the problems of inability to achieve precise positioning, inability to complete the articulation, lowering of the counterweight, etc., to improve articulation efficiency, fast articulation, and ensure safety and reliability. Effect
Active Publication Date: 2016-10-05
XUZHOU HEAVY MASCH CO LTD
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Problems solved by technology
[0006] In the first solution, the weight of the balance weight is all concentrated on the cylinder rod of the hydraulic cylinder, and after the installation is completed, the balance valve is locked to fix the balance weight, so that the hydraulic cylinder must maintain a high pressure during the whole working process. It is easy to cause seal failure, balance weight drop, and danger
[0007] In the second solution, the distance between the lower side of the rear tail frame of the turntable and the upper surface of the chassis is limited, and the balance weight bracket is placed on the upper side of the chassis. During the turning process of the turntable, sometimes the turntable will interfere with the balance weight bracket, and the connection cannot be completed. Secondly, the limit guide block positioning device of the hitch system cannot be machined at the same time as the positioning hole on the lower side, and the size is deviated, so accurate positioning cannot be achieved
Method used
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Embodiment Construction
[0036] The technical solutions of the present invention will be described in further detail below with reference to the accompanying drawings and embodiments.
[0037] Such as figure 1 with figure 2Shown is a specific embodiment of a mounting system of the present invention. The hooking system in this embodiment includes a first hooking part 1 and a second hooking part 2 . The first hooking part 1 includes a first upper limiting device 11 and a first lower limiting device 12; the second hooking part 2 includes a second upper limiting device 21 and a second lower limiting device. Positioning device 22; when the first hooking part 1 and the second hooking part 2 are hooked, the first upper side limiting device 11 and the second upper side limiting device 21 can cooperate with each other to limit all The first hooking part 1 and the second hooking part 2 are in the front-rear direction (the front-back direction here is relative to the first hooking part 1 and the second hooki...
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The invention relates to a hitching system, which comprises a first hitching part and a second hitching, wherein the first hitching part consists of a first upper side limiting device and a first lower side limiting device; the second hitching part consists of a second upper side limiting device and a second lower side limiting device. The invention also relates to a balance weight device comprising the hitching system and a hitching method of the balance weight device. The hitching device can ensure the hitching safety and reliability of a turntable and a balance weight support, the lifting performance of a mobile crane is guaranteed so as to realize the positioning accuracy and hitching fastness, the turning clearance of a balance weight and a frame can be guaranteed, so that the hitching efficiency is improved; in addition, according to the balance weight device and the hitching method, the weight of the balance weight is hitched on the turntable through the balance weight support in a mechanical connection manner, and the reliability of the balance weight hitching system can be enhanced.
Description
technical field [0001] The invention relates to the field of engineering machinery, in particular to a hitch device, a balance weight device and a hitch method. Background technique [0002] The counterweight is one of the important components of the crane, which determines the lifting performance of the crane. During the crane hoisting process, it is necessary to assemble the counterweight. Whether the counterweight assembly is convenient and fast is an important indicator to measure the convenience of the crane. On large-tonnage cranes, the balance weight coupling system realizes assembly for the movement of the balance weight bracket driven by the hydraulic cylinder. [0003] At present, large-tonnage cranes generally use combined counterweights to meet the needs of different operating conditions for counterweights. This requires the assembly of counterweights during the hoisting process of the crane. Whether the counterweight assembly is convenient and fast is a measure...
Claims
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IPC IPC(8): B66C23/62B66C23/76
CPCB66C23/62B66C23/76
Inventor 张伟龙翁艳艳董丽娜袁高明曹艳军
Owner XUZHOU HEAVY MASCH CO LTD