4results about How to "Timely support" patented technology

The application discloses a kind of near vertical medium-thick, thick coal seam filling mining method, it is related to coal mine filling mining technical field.In near vertical coal seam, the working face that is arranged downward is carried out, and according to the depth of coal seam, the working face is divided into multiple mining stages;In the top and bottom of each mining stage, horizontal direction goaf strip is respectively constructed, and goaf strip is filled with high water-cement ratio cementing material to form artificial false roof and artificial false bottom;From artificial false roof, the working face is downwardly mined until artificial false bottom, forming the goaf of mining stage;The goaf is completely filled with low water-cement ratio cementing material;Repeat the step to realize the filling mining of entire near vertical medium-thick, thick coal seam.This method can solve the mining problem of near vertical medium-thick, thick coal seam coal resources, release the stagnant coal resources caused by complex occurrence conditions, and can effectively reduce strata movement and surface deformation.

The application relates to the technical field of two-plate slide feet, in particular to a two-plate slide foot structure with strong magnetic suspension. The structure comprises a slide rail and a slide foot, the lower end of the slide rail is provided with a main magnet, the slide foot is provided with a main electromagnet, the main electromagnet is arranged below the main magnet, the structure further comprises a protection assembly, the protection assembly comprises a plurality of mounting blocks, the mounting blocks are arranged at the lower ends of four corners of the slide foot respectively, the lower ends of the mounting blocks are provided with mounting grooves, the mounting grooves are movably provided with moving blocks, and the moving blocks are provided above driving assemblies for driving the moving blocks to move. Through the arrangement of the moving blocks, the moving blocks and the slide rail are in contact, no collision occurs between the main magnet and the main electromagnet, the installation is facilitated, the slide foot can be supported in time when the main electromagnet stops running, the main electromagnet and the main magnet are protected, the falling distance of the two plates is reduced, and the two plates are protected.

The application relates to the field of ultra-thin stainless steel production, in particular to a double-opening automatic switching winding device which comprises a base and a winding mechanism slidably installed on the base, the winding mechanism comprises two driving winding seats, the two driving winding seats are slid on the base through a driving assembly, when one driving winding seat completes winding, the driving assembly drives the driving winding seat to move away from a discharging area, meanwhile, another driving assembly drives the driving winding seat to be wound to move to the discharging area to continue winding. The driving winding seat is slidably connected with the base sliding rail through a sliding block module 23. The driving assembly comprises a lead screw, a support, a sleeve and a driving motor. The device further comprises a supporting assembly for supporting a steel coil, the supporting assembly comprises a supporting table, a lifting piece and a supporting bottom, and the supporting assembly is slid on the base through a pulley module. The device can be alternately operated, downtime is reduced, winding efficiency is improved, and the stability and safety of the winding process are ensured.

This application discloses a battery device and an electrical device. The battery device includes: a housing; multiple battery cells, each having a casing and an electrical connection portion. In a first direction, the electrical connection portion is located on one side of the casing, and the multiple battery cells are electrically connected via electrical connectors. The housing has a first cavity wall opposite to the electrical connectors. A support structure is at least partially located between the casing and the first cavity wall, with a minimum distance between the support structure and the first cavity wall that is less than the minimum distance between the electrical connectors and the first cavity wall. At least one support structure is a first support structure and includes a first support portion and a second support portion connected together. The first support portion is located between two adjacent electrical connectors, and the second support portion is located between the casing and the electrical connectors. In the above technical solution, the support structure can transmit and disperse the external impact force borne by the first cavity wall. The first support structure can support the electrical connectors and increase the mating area with the casing, effectively reducing the risk of damage to the electrical connection structure.