Hoisting apparatus for assembly of steel tube stiffening rings
A hoisting device and stiffening ring technology, which is applied in the field of large-scale steel pipe manufacturing and construction, can solve the problems of increasing the manufacturing cost of steel pipes, frequent batch hoisting operations, and affecting the progress of other processes, and achieves simple structure, improved production efficiency, and easy operation. convenient effect
Active Publication Date: 2015-07-29
SINOHYDRO BUREAU 8 CO LTD
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Problems solved by technology
Especially in the case of large steel pipe production volume, batch hoisting operations will be more frequent
It can be found that the process of assembling the stiffening ring has a serious phenomenon of "big cow pulling a small cart", which not only takes up a long time for the lifting equipment, but also affects the progress of other processes, greatly reduces the production efficiency, and will greatly increase the production cost of steel pipes.
Method used
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[0021] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0022] Figure 1 to Figure 5 It shows an embodiment of the hoisting device used for assembling steel pipe stiffening rings according to the present invention. The hoisting device includes a central column 1, a cross bar 2 and a base 3. The end is connected with the base 3, and the top of the central column 1 extends to the outside of the steel pipe 4 and then connects with the center of the cross bar 2. The two ends of the cross bar 2 are equipped with supporting parts 5, and the bottom of the supporting part 5 is pressed on the top of the steel pipe 4. The cross bar 2 Lifting equipment 7 for lifting the stiffening ring 6 to a predetermined position on the outer wall of the steel pipe 4 is also installed at both ends. When in use, first fasten the bottom end of the center column 1 to the base 3, then place the center column 1 with th...
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The invention discloses a hoisting apparatus for assembly of steel tube stiffening rings. The hoisting apparatus includes a center stand column, a cross bar and a base, wherein the axis of the center stand column coincides with that of a steel tube; the bottom end of the center stand column is connected with the base; the top end of the center stand column extends out of the steel tube to be connected with the center position of the cross bar; support members are mounted at the two ends of the cross bar; the bottoms of the support members press against the top end of the steel tube; lifting devices used for lifting the stiffening rings to preset positions on the outer wall of the steel tube are mounted at the two end parts of the cross bar. The hoisting apparatus has the advantages of being simple in structure, low in cost, convenient to operate, easy to dismount, and capable of greatly improving the steel tube manufacturing efficiency.
Description
technical field [0001] The invention mainly relates to the field of manufacturing and construction of steel pipes in large quantities, in particular to a hoisting device for assembling stiffening rings of steel pipes. Background technique [0002] In the process of steel pipe manufacturing and construction, the outer circumference of the steel pipe often needs to be provided with a stiffening ring, that is, the stiffening ring needs to be assembled and welded with the steel pipe to improve the overall strength and performance of the steel pipe. When the diameter of the steel pipe is large, the weight of a single piece of the stiffening ring will be several hundred kilograms, which cannot be assembled by manpower. [0003] In the prior art, it is usual to utilize large-tonnage hoisting equipment such as door cranes or bridge cranes in the workshop to complete hoisting, positioning, and spot welding. Especially in the case of large steel pipe production volume, batch hoisting...
Claims
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IPC IPC(8): B66C25/00
CPCB66C25/00
Inventor 李如钢毛健王文明张大文
Owner SINOHYDRO BUREAU 8 CO LTD