Tower crane with variable triangular hoisting rope
A tower crane, triangular technology, applied in cranes and other directions, can solve the problems of unstable operation, wear, and large local force of the boom
Inactive Publication Date: 2014-12-10
WUHU HEJIAN ROADS & BRIDMACHINERY
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Problems solved by technology
However, since the lifting and traveling device and the hook are on a vertical line, the force on the boom is also concentrated in the area where the lifting and traveling device is located. Rotation may occur in the middle, resulting in unstable operation and prone to danger
Method used
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Embodiment Construction
[0013] Embodiment 1 of the present invention proposes a variable-triangle hoisting rope tower crane, which is used to transport materials 14, such as figure 1 As shown, it includes: base 1, tower body 2, turntable 3, boom 4, lifting and traveling device 5, balance arm 6, hook 7, counterweight 8, counterweight traveling device 9, tower spire 10, movable pulley 11, fixed Pulley, rope 13. Among them, the tower body 2 is fixed on the base 1; the tower spire 10 is located on the top of the tower body 2; the turntable 3 is located between the tower body 2 and the tower apex 10; 6; the fixed pulley 12 is located at the end of the boom 4 away from the tower body 2; the hoisting walking device 5 is arranged at one end of the crane, 4 is close to the tower body 3, and can move to the fixed pulley 12 along the length of the boom; the movable pulley 11, The rope 13 is arranged between the hoisting and traveling device 5 and the fixed pulley 12. One end of the rope 13 is fixed on the hois...
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The invention discloses a tower crane with a variable triangular hoisting rope. The tower crane is characterized in that one end of a crane jig, which is far away from a tower body, is provided with a fixed pulley; a hoisting and running device is arranged at on one end of the crane jig, which is close to the tower body, and can move toward the fixed pulley along the length direction of the crane jig; a hoisting hook is connected with a movable pulley; one end of the rope is fixed on the hoisting and running device, and the other end of the rope sequentially penetrates through the fixed pulley and the movable pulley, and is connected with a driving rotary disc on the hoisting and running device; the fixed pulley, the movable pulley and the hoisting and running device form a triangular shape; the weight of a material is uniformly distributed to the fixed pulley and the hoisting and running device without generating great acting force to the crane jig partially; moreover, the rope in triangular distribution can prevent from rotating and winding together under the driving by the material.
Description
technical field [0001] The invention relates to the technical field of cranes, in particular to a variable-triangle hoisting rope tower crane. Background technique [0002] Crane refers to a multi-action hoisting machine that vertically lifts and horizontally transports heavy objects within a certain range. The working characteristic of the crane is to do intermittent motion, that is, the corresponding mechanisms for taking material, moving, unloading and other actions in a working cycle work alternately. The lifting machinery used in bridge construction projects can generally be divided into four categories: light and small lifting equipment, bridge type lifting machinery, jib type cranes, and cable cranes according to their structure and performance. Light and small lifting equipment such as: jacks, pneumatic hoists, electric hoists, balance hoists (also known as balance cranes), hoists, etc.; bridge type hoisting machinery such as beam cranes, etc.; jib type cranes such ...
Claims
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IPC IPC(8): B66C23/66B66C23/62
Inventor 陈敏兆赵理郁
Owner WUHU HEJIAN ROADS & BRIDMACHINERY