Dead-weight positioning pulley catch lever frame and erector arm
A technology of retaining rod frame and pulley, which is applied in the direction of crane, earth mover/excavator, construction, etc.
Inactive Publication Date: 2012-04-18
BEIJING SANY HEAVY MASCH CO LTD
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- Application Information
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Problems solved by technology
Due to the fixed connection between the protective cover and the pulley, the protective cover cannot be automatically adjusted according to the specific position of the pulley
Method used
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Embodiment 1
[0021] see figure 1 , figure 2 , figure 1 It is a structural schematic diagram of the self-weight positioning pulley bar frame of the present invention, figure 2 It is a structural schematic diagram of the bar bracket in the present invention.
[0022] The present invention proposes a self-weight positioning pulley stop rod frame, which includes two stop rod brackets 1 , a first connecting rod 2 , a second connecting rod 3 and a counterweight rod 4 . Wherein, the bar bracket 1 includes a first bracket body 11 , a second bracket body 12 and a third bracket body 13 . One end of the first support body 11 , the second support body 12 and the third support body 13 are fixedly connected, and a shaft hole 14 is provided at the junction of the three support bodies. And the first support body 11 and the third support body 13 are arranged at a certain angle. The first support body 11 and the second support body 12 are arranged at a certain angle. The first bracket bodies 11 of t...
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The invention provides a dead-weight positioning pulley catch lever frame and an erector arm. The catch lever frame comprises two catch lever supports, a first connecting rod, a second connecting rod and a balance weight rod, wherein each catch lever support comprises a first support body, a second support body and a third support body, one end of the first support body, one end of the second support body and one end of the third support body are fixedly connected, and a shaft hole is formed at the joint of the three support bodies; the first support bodies and the third support bodies form an angle of between 139 and 188 degrees, and the first support bodies and the second support bodies form an angle of between 68 and 131 degrees; and the first support bodies of the two catch lever supports are connected by the first connecting rod, the second support bodies of the two catch lever supports are connected by the second connecting rod, and the third support bodies of the two catch lever supports are connected by the balance weight rod. The catch lever frame is arranged with a pulley coaxially and can rotate relative to the pulley, and the catch lever frame is always in one state during operation, namely the balance weight rod is always positioned at the lowest point in the vertical direction to prevent steel wire ropes, cables and the like from being separated from the pulley.
Description
technical field [0001] The invention relates to the field of engineering machinery, in particular to a self-weight positioning pulley bar frame and a boom. Background technique [0002] For construction machinery, such as grabs for underground diaphragm walls, steel wire ropes and cables at the top of the boom bypass the pulleys and connect to the working device below. slot slides out. At present, the most commonly used method is to add a protective cover on the outside of the pulley, and the protective cover and the pulley are fixedly assembled concentrically. Since the protective cover and the pulley are fixedly connected, the protective cover cannot be automatically adjusted according to the specific position of the pulley. Contents of the invention [0003] The invention proposes a self-weight positioning pulley stop bar frame, which can rotate relative to the pulley for self-adjusting positioning, so as to ensure less damage to steel wire ropes and cables and preven...
Claims
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Login to View More IPC IPC(8): E02F5/14B66C23/62B66C23/88
CPCB66C23/88B66C23/62E02F5/14
Inventor 雷冀赵长春朱晓勇
Owner BEIJING SANY HEAVY MASCH CO LTD