Cargo boom and tower crane with same
A boom and boom section technology is applied in the field of booms and tower cranes having the boom, which can solve problems such as affecting product versatility and increasing production costs, and achieve the effects of reducing production and use costs and improving versatility
Active Publication Date: 2015-05-13
ZOOMLION HEAVY IND CO LTD
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- Claims
- Application Information
AI Technical Summary
Problems solved by technology
When the height of the jib section main body of the boom changes, the height between the center plane of the upper chord and the lower chord changes, but the height of the original jib tip is fixed, so it is necessary to redesign the jib tip The tooling needs to be redesigned during production, resulting in increased production costs and affecting the versatility of the product
Method used
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Embodiment Construction
[0022] It should be noted that the features in the various embodiments of the present invention may be combined with each other in the absence of explicit limitation or conflict. The present invention will be described in detail below with reference to the accompanying drawings and examples.
[0023] In order to overcome the deficiencies of the jib of the tower crane in the prior art, the present invention provides an improved jib with a jib tip section capable of matching jib section bodies of different heights.
[0024] figure 2 It is the front view of the structure and installation of the boom of the present invention. At this time, the section height of the boom (that is, the height of the vertical section of the boom section main body, the same below) is A; image 3 yes figure 2 The schematic diagram of the structure and installation of the boom is shown.
[0025] Such as figure 2 with 3 As shown, the boom includes a boom section body 10 and a boom tip section 20 ...
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The invention relates to a cargo boom and a tower crane with the same. The cargo boom comprises a main boom section body and a boom tip joint connected to tail end of the main boom section body, wherein the boom tip joint comprises a base and a length-adjustable pull rod; the base is connected with the bottom of the tail end of the main boom section body; and the length-adjustable pull rod is connected between the top of the tail end of the main boom section body and the base. According to the technical scheme disclosed by the invention, the cargo boom comprises the main boom section body and the boom tip joint and the boom tip joint comprises the base and the length-adjustable pull rod which is connected between the top of the tail end of the main boom section body and the base, so that the actual height of the boom tip joint can be changed through the length-adjustable pull rod; and therefore, the boom tip joint can be matched with the main boom section bodies with different heights, the production cost and the use cost of the cargo boom are reduced and the commonality of products is improved.
Description
technical field [0001] The invention relates to the field of tower cranes, in particular to a boom and a tower crane with the same. Background technique [0002] At present, the ends of the booms of tower cranes are provided with jib tips. figure 1 It is the structure and installation diagram of the boom in the prior art, such as figure 1 As shown, the boom includes a jib section body 100 and a jib tip section 200 installed at the end of the jib section body. The arm tip section 200 is a welded one-piece, including a base 201 , a tie rod 202 and two diagonal rods 203 . At the top where the tie rod 202 and the two diagonal rods 203 converge together, a connecting head 204 is arranged, which is connected to the end of the upper chord 101 of the jib 100 through a pin 300 and a bolt 301 . The two ends of the base 201 are also connected to the ends of the two bottom chords 102 of the boom 100 through the connecting pin 500 and the bolt 501 respectively. [0003] In the struct...
Claims
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IPC IPC(8): B66C23/64
Inventor 钱建军郭纪斌刘毅蒋孝德
Owner ZOOMLION HEAVY IND CO LTD