4results about How to "Improve traction efficiency" patented technology

This application relates to a slipform device for slope pouring, comprising a winch and a slipform. The winch is connected to the slipform via a steel wire rope and drives the slipform to move along the slope. The slipform includes a slipform body, on which two sets of auger assemblies are symmetrically arranged on one side facing upwards on the slope. The two sets of auger assemblies are used to transport concrete to both sides of the slipform body. At least one leveling mechanism is provided inside the slipform body. The leveling mechanism includes a first support arranged along the length of the slipform body. Both sides of the first support are connected to the slipform body via several sets of translational components. A movable seat that reciprocates along the length of the first support is provided in the middle of the first support. A second support perpendicular to the first support is connected to the bottom of the movable seat. A leveling device is provided in the middle of the second support, and the leveling device freely reciprocates along the length of the second support. A vibrating plate and a smoothing roller are provided on the bottom surface of the leveling device. This application improves the working efficiency and pouring quality of slope pouring.

This utility model relates to the field of wood grain paper processing and discloses a tear-resistant wood grain paper traction machine, including a base. A support frame is fixedly connected to the middle of the base. A contact element is slidably connected to the inner wall of the support frame. A pressure sensor is fixedly connected to the upper part of the contact element. An electric telescopic rod is fixedly connected through the upper part of the support frame. The output shaft of the electric telescopic rod is fixedly connected to the upper part of the pressure sensor. A fixing component is provided on the left side of the base, and a support component is provided behind the fixing component. The fixing component includes a support cylinder rotatably connected to the upper part of the base. In this utility model, through the cooperative use of the support component and the fixing component, when changing the wood grain paper take-up drum, rotating the threaded rod drives the moving component to move, causing the support component to release its restriction on the take-up drum. At the same time, rotating the limiting component releases its restriction on the support rod, achieving rapid replacement and improving traction efficiency.

This invention discloses a trenchless removal device and method for abandoned pipelines. A vibrating device and a grouting pipe are installed on an electric trolley. Before removal, the trolley vibrates the abandoned pipeline back and forth to reduce the density of the surrounding soil, facilitating removal. Before grouting, an air bladder is inflated so that it abuts against the inner wall of the abandoned pipeline, sealing the gap between the grouting pipe and the abandoned pipeline to prevent concrete from flowing back into the abandoned pipeline during grouting. Grouting is performed simultaneously with pipeline removal, promptly filling the voids left after removal. The concrete solidifies rapidly after flowing out of the grouting pipe, minimizing ground settlement. This construction method efficiently removes underground pipelines, completing the removal and grouting processes in one operation, offering advantages such as high safety and efficiency.

This invention discloses a method for assisting ships in passing through navigation tunnels. It includes the following steps: Step 1: retracting the wheeled drive mechanism; Step 2: moving the towing platform to the waiting ship; Step 3: extending the wheeled drive mechanism; Step 4: the bow of the ship entering the concave structure of the towing platform; Step 5: connecting the towing platform to the bow mooring bollard or hull of the ship; Step 6: activating the wheeled drive mechanism to tow the towing platform and ship; Step 7: moving the towing platform to the exit of the navigation tunnel and disconnecting the towing platform from the bow of the ship; Step 8: the towing platform exiting the channel and waiting for oncoming ships in the double-lane navigation tunnel; Step 9: the oncoming ship passes through by its own propulsion; Step 10: the towing platform connecting with the oncoming ship and towing it through the tunnel; Step 11: the towing platform returning to the starting point of the navigation tunnel. This invention has the advantage of enabling ships to pass through long-distance navigation tunnels under conditions of large water level fluctuations.