In-jib chain transmission jib crane
A chain drive and crane technology, applied in cranes and other directions, can solve problems such as the limitation of the use range of the jib crane, affecting the lifting performance of the jib crane, etc., and achieve the effect of a wide range of use.
Inactive Publication Date: 2011-08-10
吴江市麒麟起重机械有限公司
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Problems solved by technology
However, the electric hoist is far away from the lifting point, which will affect the lifting performance of the jib crane.
Therefore, the scope of use of jib cranes is limited
Method used
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Embodiment 1
[0020] Embodiment one: see attached figure 1 to attach image 3 shown.
[0021] An arm-in-arm chain-driven jib crane, comprising a column 1, a jib 2 fixed at one end on the column 1, and an electric chain hoist 3;
[0022] The swing arm 2 includes a fixed arm 4 and a telescopic arm 5 which are nested in a hollow structure. The fixed arm 4 is fixedly connected to the column 1. The telescopic arm 5 can move along the axial direction of the fixed arm 4. The electric chain hoist 3 is arranged on a fixed The upper part of one end of the arm 4 close to the column 1;
[0023] The inside of the swing arm 2 is provided with a chain transmission mechanism, and the chain transmission mechanism includes a first sprocket 6 installed in the fixed arm 4, a second sprocket 7 installed in the telescopic arm 5, and a lifting chain 8; the approach of the fixed arm 4 One end of the column 1 is provided with a first rotating shaft 9 in the horizontal direction fixed thereon, the first rotating ...
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The invention relates to an in-jib chain transmission jib crane, which comprises a vertical post, a jib and a link chain electric hoist, wherein one end of the jib is fixedly arranged on the vertical post; the link chain electric hoist is arranged on the upper part of one end, which is close to the vertical post, of the jib; a chain transmission mechanism is arranged inside the jib and comprises a first chain wheel at one end, which is close to the vertical post, of the jib, a second chain wheel at one end, which is far away from the vertical post, of the jib and a hoisting chain; the first chain wheel and the second chain wheel are rotated in the vertical surface parallel to the axial direction of the jib; the hoisting chain is led out by the link chain electric hoist, pass through the lower part of the first chain wheel, is extended to the second chain wheel along the jib, moves around the upper part of the second chain wheel and then is output; the output end of the hoisting chain is connected with a lifting hook; and a heavy punch is arranged on the lifting hook. In the jib crane, the link chain electric hoist is far away from a lifting point and is transmitted by a built-in chain transmission mechanism, so that the hoisting performance of the jib crane is not influenced by a special environment when the lifting point is positioned in the environment, and the jib crane hasa wide application range.
Description
technical field [0001] The invention relates to a jib crane with chain drive in the jib. Background technique [0002] The jib crane is used to lift heavy objects. The structure of a common fixed column jib crane usually includes a fixed column installed on the ground, a rotatable jib fixed on the fixed column at one end, and an electric hoist installed above the lifting point. . The jib crane with this structure is used in some special occasions, such as the occasions where the temperature and humidity above the lifting point are high, the electric hoist is in a high temperature and high humidity environment, and the motor and electrical appliances are easily damaged, which affects the performance of the jib crane. For normal use, the electric hoist should be kept away from the lifting point. However, if the electric hoist is far away from the lifting point, it will affect the lifting performance of the jib crane. Therefore, the scope of use of the jib crane is limited. ...
Claims
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IPC IPC(8): B66C23/16B66C23/66B66C23/687
Inventor 周建森王方明徐刚
Owner 吴江市麒麟起重机械有限公司