Raising unit, crane with raisable jib comprising such a raising unit, and method for assembling such a crane
A lifting unit, crane technology, used in cranes, transportation and packaging, hoisting devices, etc., can solve the problems of reduced working life, pollution, large number of parts, etc. Effect
Active Publication Date: 2018-08-31
MANITOWOC CRANE GROUP FRANCE
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] However, the lifting unit of GB137253A is bulky, which necessitates the removal of the cylinder from the jib and mast before transporting the crane
However, due to the repeated disassembly of the crane, in the disassembled configuration, the connection members between the jib, cylinder and mast are subject to impact and contamination, which reduces their working life
In addition, the assembly or disassembly operations of the crane take considerable time
Furthermore, the number of parts to be managed and stored individually is relatively large
Method used
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Embodiment Construction
[0095] figure 1 , figure 2 , image 3 , Figure 4 , Figure 5 and Figure 6 A lifting unit 1 constituting a luffing jib crane 100 according to the invention is shown. luffing jib crane 100 in Figure 8 and Figure 9 shown in . The luffing jib crane 100 includes:
[0096] - the swing arm 102 configured to distribute the suspended load (not shown);
[0097] - a mast 104 configured to support the jib and suspend the load;
[0098] - a lifting unit 1 mechanically connected to the mast 104 and fixed to the jib 102 (described below); and
[0099] - The cab unit 107 , here attached to the mast 104 .
[0100] The lifting unit 1 includes a swing arm leg 2 , a balance swing arm 4 , a fixing part 6 and a cylinder body 8 . Lifting unit 1 is configured to be placed:
[0101] In the job construct ( Figure 7 and Figure 8 ), wherein the cylinder 8 can displace the swing arm leg 2 between the lowered position and the raised position; and
[0102] In transport construction ( ...
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Abstract
What is proposed is a raising unit (1) comprising: a jib root (2) forming the proximal portion of a jib in the service configuration, a counter-jib (4) supporting a counterweight (5), a securing portion (6) between the jib root (2) and the counter-jib (4) for securing the raising unit (1) to a tower (104), and an actuator (8) connected to the jib root (2) such that the jib root (2) is able to movebetween a lowered position and a raised position. The second actuator portion (8.2) being connected to the securing portion (6). Also proposed is a tower crane (100) comprising such a raising unit (1). Additionally proposed is a method (200) for assembling such a crane (100).
Description
technical field [0001] The invention relates to a lifting unit for forming a luffing jib crane. Furthermore, the invention relates to a luffing jib crane comprising such a lifting unit. Furthermore, the invention relates to an assembly method for assembling such a luffing jib crane. Background technique [0002] The invention is applied to the field of tower cranes including pitching jibs. The invention can be applied to various crane structures, for example to structures consisting of latticework and chords. [0003] GB1372533A describes a tower crane comprising a mast, a luffing jib, a lifting unit and a swivel for rotating the lifting unit. The lifting unit of GB137253A includes the proximal part of the pitching arm, the balancing arm supporting the balance ballast, the fixing part arranged between the arm and the balancing arm, and a cylinder, which is approximately vertical and has a On the one hand it is connected to the jib and on the other hand to the mast. [0...
Claims
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Login to View More IPC IPC(8): B66C23/34B66C23/36B66C23/62B66C23/82
CPCB66C23/365B66C23/62B66C23/82B66C23/344B66C23/54B66C2700/0392
Inventor 米歇尔·利桑德雷西尔万·雷蒙德加布里埃尔·弗赖斯迈克尔·莫伦蒂埃尔塔尼娅·加西亚·罗维拉弗洛朗·穆兰
Owner MANITOWOC CRANE GROUP FRANCE