4results about How to "Solve transportation difficulties" patented technology

This invention provides a water-blocking device for a tunneling machine and a tunneling machine in the field of tunneling equipment technology. The water-blocking device for the tunneling machine includes a fixing member for fixing to the bottom of the shield body. A sealing member for sealing the gap between the bottom of the shield body and the tunnel wall is installed on the fixing member. The sealing member has a contact surface for contacting the tunnel wall. The water-blocking device also includes a control structure connected to the sealing member to control the contact surface's contact or detachment from the tunnel wall. The contact surface of the sealing member can seal the gap between the bottom of the shield body and the tunnel wall, preventing water from seeping into the tunnel, flowing water behind the tunnel, or water used for construction from flowing to the front of the shield body and mixing with the excavated rock. This prevents the excavated rock transported to the conveyor belt from having excessive moisture content, causing transportation difficulties and ensuring the normal excavation function of the conveyor belt. Excavation is not required by manual assistance, saving manpower and time. The contact surface of the sealing member can also detach from the tunnel wall, facilitating the tunneling machine's forward movement and avoiding excessive friction that could affect its service life.

The application discloses a latch sleeve advance positioning method and advance positioning device, which comprises the following steps: designing an upper beam, marking the longitudinal center line and the transverse center line of the upper beam, assembling a latch support on both sides of the bottom of the upper beam, assembling a pair of upper pads at the bottom end of the upper beam, marking the longitudinal center line and the transverse center line of the latch support, locating the center of the latch hole of the latch support on the longitudinal center line, boring the latch hole of the latch support, placing the upper beam and the latch support assembly on the upper cover plate of the machine arm, installing the processed latch sleeve at the front end of the latch, and pushing the latch so that the latch sleeve is just pushed into the ear beam hole on the machine arm. According to the application, the processed latch sleeve is pushed into the ear beam holes on both sides of the machine arm along the installation path of the bridge crane support leg to be installed according to the upper beam and the latch support, and then is positioned and welded, so that the workload of welding and then processing the latch sleeve is reduced, and the coaxiality of the latch sleeves on both sides of the ear beam is further ensured.

According to the underground excavation arch cover method, the construction method utilizing the permanent and temporary combination of the middle plate and serving as the supporting system adopts an open excavation and underground excavation partition collaborative operation mode, and through the permanent and temporary combination design of the top plate, the middle plate and the bottom plate of internal facilities, the supporting arch cover, the unit top plate, the unit middle plate, the unit bottom plate and other structures serve as temporary supports in the construction stage; the operation stage is directly converted into a permanent structure, dismantling of a temporary support and material waste in a traditional open excavation method are avoided, consumption of building materials such as steel and concrete is remarkably reduced, meanwhile, manpower and time cost of the dismantling procedure is reduced, and comprehensive economic benefits are obviously improved. The method can flexibly adapt to the scene that existing buildings exist around the foundation pit, and the influence on the surface buildings is reduced to the maximum extent through reasonable division of the open excavation area and the underground excavation area.

The utility model relates to the technical field of supporting frames, in particular to an anti-vibration supporting frame for an ultrahigh altitude tower drum. According to the technical scheme, the tower drum supporting frame mainly aims at solving the problems that an existing tower drum supporting frame is not adaptive to extreme working conditions such as strong wind, low temperature and complex vibration in an ultrahigh altitude area due to structural design and material selection, vibration resistance is insufficient, materials are prone to losing efficacy, and the stability of a tower drum is difficult to guarantee. The multiple sets of connecting rings are arranged on the outer side of the inner supporting frame, flange plates are installed on the side faces of the connecting rings, and the flange plates are connected with the tower drum through bolts; the connecting assembly is installed in the inner supporting frame and used for connecting multiple sections of tower barrels; and the buffering mechanism is arranged on the connecting assembly and used for improving the bearing capacity. The supporting frame effectively overcomes the defects of an existing supporting frame under the ultrahigh altitude extreme working condition, guarantees stable operation of the tower drum, reduces safety risks and improves power generation efficiency.