35results about How to "Bad luck" patented technology

The invention discloses a track slab banding and pressing process for plate-type ballastless tracks. In the invention, banding and compaction construction can be carried out on multiple sections from front to back. The construction process is as follows: 1, crosswise banding of track slabs: supporting a vertical board, filling narrow seams to be compacted, laying exhaust pipes and completing the banding process of all the narrow seams in the constructed ballast bed slab sections; 2, longitudinal banding of the track slab: laying out, compacting and fixing a left longitudinal banding device and a right longitudinal banding device and completing the longitudinal banding process of all concrete ballast bed slabs in all of the constructed ballast bed slab sections; and 3, completing the banding and pressing process of all track slab sections in the ballastless track bed slabs. The process disclosed by the invention has the advantages of reasonable design, simple process steps, good using effect and high construction quality, and is convenient to realize, and the problems that the existing track slab banding and pressing process for the plate-type ballastless tracks has complicated process steps, low efficiency of construction, difficultly in construction quality control, high level of pollution to the environment and the like can be solved.

The invention discloses a tunnel lining structure of an existing railway line and a construction method thereof. The tunnel lining structure comprises multiple steel arch frames and a cast-in-place reinforced concrete lining; the construction method comprises steps: 1. Existing lining is chiseled ; 2. Determine the installation position of the steel arch; 3. Process and manufacture the steel arch; 4. Lower the steel arch; 5. Erection of the steel arch; Applied as lining steel bars; 9. Applied as lining concrete; 10. Grouting reinforcement. The structure of the invention is reasonably arranged, the cast-in-place reinforced concrete lining is closely connected with the existing lining, and the existing lining can be effectively reinforced without affecting the existing lining structure, and the outer formwork can be reused during the concrete pouring process. The construction cost is effectively reduced. At the same time, the steel arch frame is used as a side formwork. It does not need to be dismantled after use. It can be stressed and work together with the existing lining, which greatly improves the safety of the cast-in-place reinforced concrete lining structure.

The invention discloses a dismounting and transporting trolley comprising an upper trolley and a lower trolley. The upper trolley is located above the lower trolley and comprises a closed upper frame, roller wheels are arranged at the bottom of the upper frame, and the upper frame is also provided with two support bars arranged in parallel; the lower trolley comprises a lower frame with an opening at one end, the roller wheels are arranged at the bottom of the lower frame, and the lower frame is detachably connected to the upper frame. The dismounting and transporting trolley has simple structure and convenient operation, the dismounting and the transporting of a material flow valve and a corrugated pipe in a COREX (Iron Making By Smelting Reduction)-C3000 shaft furnace can be quickly realized, the labor intensity of an operator is reduced, the construction time is shortened, the replacing speed of an ore charge distributor is quickened and the working efficiency is improved.

The invention discloses a safety ladder and an installation method thereof. The safety ladder includes a ladder foundation, the ladder foundation is connected to the main body of the ladder through a base, and the main body of the ladder includes a standard section, an entrance section, and a staircase arranged inside the standard section and the entrance section; The entrance section includes four entrance poles placed in a rectangle, the entrance poles on the left and right sides are connected by long cross-links, the entrance poles on the rear side are connected by short cross-links, and the entrance poles on the front side are provided with entrance cross-links; The standard section includes four vertical poles placed in a rectangle, the vertical poles on the left and right sides are connected by long horizontal links, and the vertical poles on the front and rear sides are connected by short horizontal links. When installing, first install the base on the ladder foundation, then install the entrance section on the base, then install the standard section on the entrance section, install the stairs inside the entrance section and the standard section, install the anti-throwing net inside the entrance section and the standard section, and finally Install the attachment on the standard section. The invention is detachable, can be pre-assembled, is convenient to transport, and can extend the height of the ladder.

The invention discloses a system for changing a sling of a suspension bridge and a method for changing the sling of the suspension bridge, and relates to the technical field of change of the sling of the suspension bridge. The system comprises a sling clip, a towing wheel, a lifting appliance and two winches, wherein the towing wheel is arranged on the sling clip and comprises a pedestal and a plurality of rolling wheels; the rolling wheels are arranged on the pedestal; the plurality of rolling wheels are arranged along the arc-shaped path side by side to form an arc-shaped traction path; the lifting appliance is arranged above the sling clip and is used for lifting the sling to switch between the sling clip and the traction path; and the winches are connected with anchor heads arranged on two end parts of the sling correspondingly through steel wire ropes. According to the system and the method, the sling can be changed quickly and conveniently under the condition of low lifting height.

The invention relates to a clearing support tool of a rotor of an MW (megawatt)-level permanent magnetic direct drive wind driven generator. The clearing support tool comprises a support H steel, an upper support end plate welded on the top of the support H steel, rib plates welded on two flanks of the support H steel, and a lower support end plate welded on the bottoms of the support H steel and the rib plates, wherein a protection end plate is arranged on the upper support end plate; the protection end plate is fixedly connected with the upper support end plate by virtue of a fastener; and lower support square pipes are welded beneath the lower support end plates. According to the clearing support tool of the rotor of the MW-level permanent magnetic direct drive wind driven generator, the support stability of the rotor can be realized by adopting three or more than three clearing support tools, and the cylindricity quality of the rotor is improved. By utilizing the clearing support tool, the clearing work of the inner wall of the rotor is safely, easily, conveniently and fast completed, the clearing efficiency is high, and the production efficiency is improved.

The invention provides container type movable surfacing equipment. The equipment includes a container body (10) and is characterized in that the container body (10) includes a first functional zone (1), a second functional zone (2) and a third functional zone (3); and the first functional zone (1), the second functional zone (2) and the third functional zone (3) are arranged at the internal of thecontainer body (10) and are in successive arrangement. Through the provided equipment, the design of each part of the equipment can be more convenient and reliable than traditional equipment; a series of parts can be completely integrated in one container; simple and convenient cargo transport and on-site preparation work can be realized; and on-site construction time ca be saved in actual application, the number of workers can be reduced, and therefore, equipment maintenance costs of mill users can be finally reduced.

The invention discloses a rotary lifting device for repairing a coke oven door. The rotary lifting device comprises a main frame, a docking mechanism, a rotating mechanism, a lifting mechanism, a traveling mechanism and a control system, wherein the docking mechanism and the rotating mechanism are arranged on the main frame; the main frame is connected with the traveling mechanism by virtue of the lifting mechanism; the traveling mechanism can move along a ground guide rail; and the control system controls each mechanism to finish the actions such as docking and clamping, rotating, lifting, elevating and traveling of a traveling trolley on the coke oven door. Compared with the prior art, the rotary lifting device disclosed by the invention has the beneficial effects that 1) the device is suitable for two different bolt structures of a pressing mode and a rotating mode; 2) a main frame of a single-side frame structure is adopted, each part of the oven door is convenient to maintain, and the maintenance efficiency is high; 3) the operation is stable and reliable; 4) the lifting action is realized by virtue of retraction and rotation of a folding arm, and the operation is stable and reliable; 5) the left and right folding arms synchronously retract, so that the oven door is lifted to a proper height, and the working conditions are improved; and 6) a set of device can be shared on the machine and coke side, and the cost is saved.

The invention discloses a quick construction method for an over-crossing business line hangar tunnel T-shaped girder in narrow space. The quick construction method includes the following steps that ahangar tunnel foundation pit is dug according to a designed location and a hangar tunnel stand column is constructed; a hangar tunnel vertical girder is constructed, a bracket support is pre-buried and a gantry crane walking railway is set up on the bracket support; a distributive girder and a form board are laid on the top of the hangar tunnel vertical girder to be used as a T-shaped girder primary prefabricating platform, and a gantry crane is arranged on the gantry crane walking railway; a T-shaped girder is poured on the T-shaped girder primary prefabricating platform and hoisted to a vacant zone; if the vacant zone can not be laid fully, then the step is conducted repeatedly; the T-shaped girder primary prefabricating platform is demolished, and the form board is laid on the T-shapedgirder to be used as a T-shaped girder secondary prefabricating platform; a T-shaped girder is poured on the T-shaped girder secondary prefabricating platform and hoisted to a vacant zone and erectingof the T-shaped girder is completed; the T-shaped girder secondary prefabricating platform is demolished and auxiliary facilities are exerted; and other unnecessary facilities are demolished. The problem of insufficient prefabricating places can be solved and the risk of the hoisting operation near the business line is avoided.