156results about How to "Meet the lifting needs" patented technology

The invention discloses a full-set dismantling and installing construction method of a bridge overpassing an existing line. Full-set dismantling and installing construction is conducted on a plurality of beam segments needing to be dismantled of a used beam to be dismantled from front to back. The full-set dismantling and installing construction method comprises the steps that firstly, a pavement layer of the bridge surface is milled; secondly, roof-propping is conducted on the beam segments; thirdly, preparatory work is conducted before hoisting; fourthly, hoisting and moving-out are conducted; fifthly, one beam segment is installed after replacement; sixthly, full-set dismantling and installing construction of the next beam segment is conducted, specifically, full-set dismantling and installing construction is conducted on the next beam segment needing to be dismantled of the used beam to be dismantled according to the first step to the fifth step of the method; and seventhly, the sixth step is repeated once or more than once till full-set dismantling and installing construction of all the beam segments needing to the dismantled in the used beam to be dismantled is completed. The method is simple in step, reasonable in design, easy and convenient to implement and good in using effect, full-set dismantling and installing construction of the bridge overpassing the existing line can be completed easily, conveniently and rapidly, the construction process is safe and reliable, the construction period is short, and the method is economical and practical.

The invention provides a self-loading and unloading carrier vehicle. The self-loading and unloading carrier vehicle comprises a frame, and two suspension frames which are installed on the frame and arranged oppositely, wherein the two suspension frames are matched to lift a container. At least one suspension frame is movable. The movable suspension frame is moveably arranged on the frame so that the distance between the two suspension frames along the length direction of a vehicle body can be adjusted. The self-loading and unloading carrier vehicle provided by the invention is multi-purpose and can be used to lift containers in various specifications.

The invention relates to the technical field of hoisting devices, and particularly discloses a hoisting device for shipway operation, which comprises a hoisting bracket and a lifting driving mechanism, the lifting support comprises a left support and a right support, a lifting base is installed between the left support and the right support, and a left lifting hook and a right lifting hook are installed on the lifting base; the left lifting hook comprises a first left lifting hook and a second left lifting hook, the right lifting hook comprises a first right lifting hook and a second right lifting hook, and the first left lifting hook, the second left lifting hook, the first right lifting hook and the second right lifting hook are connected with the first left roller, the second left roller, the first right roller and the second right roller through steel wire ropes; spacing adjusting mechanisms are installed between the left lifting hooks and the right lifting hooks, between the two left lifting hooks and between the two right lifting hooks. According to the lifting device, the position of each lifting hook can be adjusted according to the volume of a material, so that the lifting work of materials with various volumes is realized, the practicability and the flexibility are relatively high, and the lifting requirements of various materials are met.