Super-lift pulley bracket device, arm support and crane
A technology of pulley brackets and brackets, which is applied in the field of jibs, cranes, and superlift pulley bracket devices. It can solve the problems of low installation efficiency and complicated process, and achieve the effect of improving installation efficiency.
Pending Publication Date: 2021-09-17
HUNAN SANY MEDIUM TONNAGE HOISTING MASCH CO LTD
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
However, the process of transferring the bracket to the jib for fixing is complicated and the installation efficiency is low
Method used
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[0027] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0028] The Z-axis in the drawings represents the vertical direction, that is, the up and down position, and the positive direction of the Z-axis (that is, the arrow pointing to the Z-axis) represents the top, and the reverse of the Z-axis represents the bottom; the X-axis in the drawings represents the horizontal direction , and specified as the left and right positions, and the positive direction of the X-axis represents the right side, and the reverse direction of the X-axis represents the left side; Reverse represents the front side; at the same time, it should be noted that the meanings of the aforementioned Z-axis, Y-axis and X-axis are only for the convenience of describing the present invention and simplifying the description, rather...
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The invention provides a super-lift pulley bracket device, an arm support and a crane. The super-lift pulley bracket device comprises a fixing device, a bracket, a first limiting piece, a second limiting piece and a third limiting piece; the fixing device is suitable for being arranged on a super-lift arm; the bracket is rotationally connected with the fixing device, the first limiting piece is arranged on the bracket, the second limiting piece is suitable for being arranged on a cargo boom, and the third limiting piece is arranged on the fixing device. When the super-lift arm is in a retracted or extended state, the first limiting piece and the second limiting piece are arranged in a contact mode or are arranged at an interval, and the bracket makes contact with the third limiting piece, so that the bracket is kept balanced under the dead weight; and when the super-lift arm is raised, the bracket is separated from the third limiting piece, and the first limiting piece and the second limiting piece are suitable for making contact, so that the bracket can be supported on the cargo boom.
Description
technical field [0001] The invention relates to the technical field of engineering machinery, in particular to a superlift pulley bracket device, a jib and a crane. Background technique [0002] At present, the super-lift device is used on the crane, which includes the super-lift arm and the super-lift pulley bracket. When in use, the super-lift arm needs to rotate around the hinge point of the super-lift arm and the boom before the pulley Lift off the superlift block bracket. During the raising process of the super-lifting jib, the bracket of the super-lifting pulley cannot rotate together with the super-lifting jib, otherwise the pulley will rotate together, which will cause the pulley to fail to support or directly fall off from the bracket, causing accidents. At present, the bracket needs to be transferred to the jib for fixing before the super-lift jib is raised, so as to ensure that the positions of the bracket and the jib remain unchanged during the super-lift jib. ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B66C23/62B66C23/64B66C23/88
CPCB66C23/62B66C23/64B66C23/88B66C2700/0392
Inventor 石丽君邵吉吉贾壮军
Owner HUNAN SANY MEDIUM TONNAGE HOISTING MASCH CO LTD