6results about How to "Meet replacement" patented technology

This utility model discloses a replacement device for the cutterhead seal seat of a tunnel boring machine (TBM), relating to the field of tunnel engineering machinery technology. Its structure includes a cylindrical section and an end cap located at one end of the cylindrical section. The end of the cylindrical section away from the end cap has an ear seat for connecting a cutterhead replacement fixture. The cylindrical section is hollow and cylindrical, and its outer diameter can mate with the mounting hole of the seal seat and slide axially along the mounting hole. The outer diameter of the end cap is the same as that of the cylindrical section. Multiple telescopic rods are evenly arranged circumferentially within the end cap, and these rods are radially arranged along the end cap and can extend or retract from the edge of the end cap. Applying this utility model allows for the replacement of the seal seat to be pushed to the front end of the cutterhead. After the device is fixed using the telescopic rods, the seal seat is isolated from the water and soil pressure at the front of the cutterhead, enabling the seal seat to be removed and replaced under normal pressure. This solves the technical problem that existing technologies cannot replace the cutterhead seal seat of a TBM under normal pressure.

This utility model discloses a plate dumbbell, relating to the field of fitness equipment technology. The plate dumbbell consists of a connector, dumbbell plates, and a dumbbell bar. The screw of the connector passes through the dumbbell plates and is inserted into the dumbbell bar. Locking devices are provided on the connecting terminals at both ends of the dumbbell bar. One end of the locking device engages with the screw of the connector to fix the screw, so that the end of the connector and the connecting terminal clamp the dumbbell plates to form the plate dumbbell. When the screw is disengaged from the dumbbell bar, the screw can slide relative to the dumbbell bar, which facilitates quick adjustment of the position of the connector and completes the assembly and disassembly of the dumbbell plates, realizing the rapid assembly of the plate dumbbell. By moving the locking device, the fixing and loosening of the connector can be controlled, thereby completing the assembly and disassembly of the dumbbell plates and adjusting the weight of the plate dumbbell. The locking device in this plate dumbbell has a simple structure and is easy to operate.

This invention discloses a bending and shaping device for automotive sunroof guide rails, relating to the field of automotive parts processing technology. The device includes a processing table, a wheel-changing assembly, a bending assembly, and a positioning assembly. A rotation opening is provided on the processing table; the wheel-changing assembly is located on the processing table. This device, through a bending motor driving a bending auxiliary wheel to rotate, can stably perform bending operations on the guide rail. The action is smooth and the force is even, ensuring regular bending formation, reducing deformation deviation, and improving bending quality and processing stability. By adjusting the movement of the bending auxiliary wheel driven by the motor, the position of the bending auxiliary wheel can be flexibly adjusted according to the diameter of the main bending wheel. The position adjustment is precise and convenient, requiring no complex debugging. It is adaptable to bending main bending wheels of different diameters, facilitating the bending of the guide rail to various angles to meet diverse bending processing needs.

The utility model discloses a high beryllium aluminum alloy extrusion forming machine which comprises an extrusion forming machine body, an extrusion head is installed on the extrusion forming machine body, an extrusion module is arranged on one side of the extrusion head, the extrusion module comprises an extrusion die installed at the end of the extrusion forming machine body, and an installation hole site is formed in the extrusion die. A containing space is formed in the middle of the extrusion die, an extrusion forming die core is installed in the containing space, an extrusion die cavity is formed in the extrusion forming die core, and an empty knife edge is formed in one side of the extrusion die cavity. According to the high-beryllium aluminum alloy extrusion forming machine, extrusion die cavities in various shapes can be prefabricated through different die cores, enterprises can flexibly respond to the requirements of the market for multi-variety and small-batch products through rapid core replacement, the order bearing capacity is improved, and the market competitiveness is enhanced; a whole set of die does not need to be customized for each product, and die development cost is saved.

The invention relates to the technical field of skid-mounted transformer substations, in particular to a skid-mounted transformer substation based on an intelligent power distribution network, and solves the problems that when an existing skid-mounted transformer substation is applied, a used insulating medium cannot continuously keep pure quality, and positive voltage insulation treatment is inconvenient to carry out on the transformer substation through the insulating medium. Comprising a box type protection mechanism, an insulation regulation and control mechanism is installed on the inner side of one end of the box type protection mechanism, the insulation regulation and control mechanism comprises an insulation gas conveying module, a backflow heat dissipation module is installed on the inner side of the insulation gas conveying module, and a circulation purification module is installed on one side of the backflow heat dissipation module. The backflow heat dissipation module comprises a heat dissipation box, and a condenser is fixedly installed at the bottom end of the heat dissipation box. Through the backflow heat dissipation module and the circulating purification module, circulating conveying and processing of insulating gas are facilitated, and insulating operation of a transformer substation in the protection box and the quality of the insulating gas are kept.

The utility model relates to a board detection device for wooden furniture production, which comprises a base and a pressing block, a movable groove is arranged at the top of the base, a first movable seat is arranged in the movable groove, a first hydraulic cylinder is arranged on the left side of the base, a piston rod of the first hydraulic cylinder is connected with the first movable seat, and a second movable seat is arranged in the movable groove. A second hydraulic cylinder is mounted on the right side of the base, a piston rod of the second hydraulic cylinder is connected with a second moving seat, a first placing seat is mounted at the top of the first moving seat, a placing groove is formed in the inner side of the first placing seat, a second placing seat is mounted at the top of the second moving seat, and a rack is fixedly connected to the top of the base; according to the plate detection device, the stability is improved, normal detection is facilitated, the flexibility is high, the plate detection device is suitable for placement of plates of various sizes, different positions of the plates are simply detected through operation keys, time is saved, and the efficiency is improved.