A balance weight moving and clamping device for a tower crane
A technology of tower crane and clamping device, which is applied to cranes and other directions, can solve the problems of immovable counterweight, inclination of tower body, fracture, etc., and achieve the effect of improving stability and safety and reducing lever arm.
Active Publication Date: 2016-04-27
GUANGXI UNIV
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Problems solved by technology
[0002] With the rapid development of my country's economic construction, tower cranes are more and more widely used. When the crane is unloaded, it must bear unnecessary balance arm moment, and it will bear a lot of torque and bending moment load when it is loaded. The balance weight cannot be moved. , resulting in the non-adjustable moment of the boom and the balance arm, causing the crane to receive a lot of unnecessary moments. When the load exceeds the bearing range, the tower body will tilt, causing the tower crane to fall or break as a whole, causing major accidents, so it is urgently needed A device with adjustable counterweights for increased stability and safety
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[0014] The present invention will be further described below in conjunction with the accompanying drawings.
[0015] Such as figure 1 with figure 2 As shown, two symmetrically arranged chutes 2 are installed in the steel frame 6 of the crane, and a side panel 4 is welded to the front and rear sides of the balance weight 5 respectively, and a roller placed in the chute 2 is installed under the side panel 4 3. The bottom of the chute 2 is equipped with several spring hydraulic rod devices 1 in different positions, and the spring hydraulic rod device 1 is fixed on the steel frame 6, see image 3 shown. The top of the push rod of the spring hydraulic rod device 1 is fixedly connected to a plate 7 that can carry the side panel 4. The width of the plate 7 is slightly larger than the width of the side panel 4. The plate 7 can be raised to the level with the chute 2 through the spring hydraulic rod device 1. position, it can also be lowered to a position lower than chute 2, see ...
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The invention discloses a balancing weight moving and clamping device for a tower crane. The balancing weight moving and clamping device comprises two winches (8) installed on the crane, wherein ropes of the two winches (8) are respectively connected with the left end and the right end of a balancing weight (5); two chutes (2) which are symmetrical are formed in a steel frame (6) of the crane; side wing panels (4) are fixedly connected with the front side and the rear side of the balancing weight, and are provided with roller wheels (3) arranged in the chutes (2); a plurality of spring hydraulic rod devices (1) at different positions are installed below the chutes (2); a plate (7) for bearing the side wing panels (4) and the roller wheels (3) is fixedly connected with the tops of push rods of the spring hydraulic rod devices (1). By changing the length of moment arm of the balancing weight, counter-balance moment is increased in case of heavy load, and moment load of the tower body is reduced in case of no load, so that the safety of the crane and the using flexibility of the full load area are increased, the load of the tower body is greatly reduced, and the service life is prolonged.
Description
Technical field: [0001] The invention relates to the technical field of tower crane accessories, in particular to a balance weight moving and locking device for tower cranes. Background technique: [0002] With the rapid development of my country's economic construction, tower cranes are more and more widely used. When the crane is unloaded, it must bear unnecessary balance arm moment, and it will bear a lot of torque and bending moment load when it is loaded. The balance weight cannot be moved. , resulting in the non-adjustable moment of the boom and the balance arm, causing the crane to receive a lot of unnecessary moments. When the load exceeds the bearing range, the tower body will tilt, causing the tower crane to fall or break as a whole, causing major accidents, so it is urgently needed A device with adjustable counterweights for increased stability and safety. Invention content: [0003] The technical problem to be solved by the present invention is to provide a coun...
Claims
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IPC IPC(8): B66C23/76
CPCB66C23/76
Inventor 周晓蓉徐敏陈定堃黎培辉袁禄
Owner GUANGXI UNIV