Method and structure for controlling and reinforcing lateral stability of crawler crane boom
A crawler crane, stability control technology, applied in the direction of cranes, etc., can solve the problems of limited transportation size and weight, and the inability to substantially change the lateral stability of the boom
Active Publication Date: 2013-08-21
ZHEJIANG SANY EQUIP
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Problems solved by technology
Traditionally, a large aspect ratio design is generally adopted for the jib to coordinate the structural capabilities of the jib in the luffing plane and the slewing plane, but it is also easy to cause the problem of transportation size and weight limitations, and it is still impossible to solve the problem substantially. The problem of lateral stability when changing the jib up, especially under unfavorable conditions such as lateral slopes
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[0017] The features of the present invention will be further described below in conjunction with the accompanying drawings.
[0018] see Figure 1 to Figure 6 , the lateral stability control and strengthening structure of the crawler crane of the present invention is installed on the main platform 1 to control the boom 2. The control structures are two sets, which are relatively installed on both sides of the connection between the main platform 1 and the boom 2, It includes a support base 3, a support pipe 4, a cylinder fixing base 5, an adjustment cylinder 6, a pressure sensor 7 and a support cable 8.
[0019] The supporting base 3 is installed on the two outer sides of the main platform 1 of the crawler crane. The supporting base 3 includes a connecting plate 31 and two supporting plates 32 . The connecting plate 31 is welded on the outer surface of the main platform 1 of the crawler crane. The two support plates 32 are welded at right angles and are vertically welded on...
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The invention discloses a method for controlling and reinforcing lateral stability of a crawler crane boom, which is characterized by respectively adding a support cable at the two sides in the rotary surface of the main boom of the crawler crane, respectively adding a side pulling fixing device at the two sides of the joint of a main platform and the boom, connecting the main boom and the side pulling fixing devices by the support cables and additionally installing pressure sensors on cylinders on the side pulling fixing devices. When the boom is subjected to lateral bending deformation due to oblique dragging, gradient or dynamic load and the lateral stability of the boom is affected, the invention realizes effective control of lateral deformation of the boom by utilizing the resiliencegenerated by the support cables or by adjusting and setting the length, the installation positions and the tension of the support cables in advances. At the same time, the lateral support cables are adopted, thus changing the constrained state of the boom in the rotary surface and further effectively improving the integral lateral rigidity and stability of the crane boom.
Description
technical field [0001] The invention relates to a boom frame of a crawler crane, in particular to a method for controlling and strengthening the lateral stability of the boom frame of the crawler crane, and also relates to a structure designed for realizing the method. Background technique [0002] The lateral stability of the crawler crane jib system is the most unfavorable weak link of the jib, especially under adverse conditions such as a long jib, a large slope on the ground, oblique pull, sudden rotation of the jib or strong wind, etc., these factors will affect the jib. The lateral stability of the frame. Traditionally, a large aspect ratio design is generally adopted for the jib to coordinate the structural capabilities of the jib in the luffing plane and the slewing plane, but it is also easy to cause the problem of transportation size and weight limitations, and it is still impossible to solve the problem substantially. The problem of lateral stability when changin...
Claims
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IPC IPC(8): B66C23/88B66C23/64B66C23/36
Inventor 刘金江李明奇刘玉泉王秀杰
Owner ZHEJIANG SANY EQUIP