4results about How to "Solve Vibration Problems" patented technology

This utility model relates to the field of high-voltage electrical system technology, and particularly to a DC copper busbar with single-phase conduction function, comprising: an input copper busbar, an output copper busbar, a power diode, and an insulating material; the input and output copper busbars are arranged in parallel, and the two copper busbars have an overlapping area in a direction perpendicular to the plane of the copper busbars, with a predetermined gap between the input and output copper busbars in the overlapping area; the power diode is disposed within the gap in the overlapping area of ​​the input and output copper busbars, and its two ends are electrically connected to the input and output copper busbars respectively; the insulating material fills the remaining gaps outside the power diode in the overlapping area of ​​the input and output copper busbars. This utility model solves the problems of high cost, reliance on manual operation, and complex structure of existing anti-reverse protection measures.

The utility model relates to mechanical processing technical field discloses a machine tool protection structure for protecting Y axis system, machine tool protection structure includes front end board, and front end board is installed on the workstation, and is located the processing table mobile route one end, rear end board is installed on the workstation, and is located the processing table mobile route other end, metal cover is along Y and is arranged in the processing table lower part, and one end of metal cover is installed in the front end board, and the other end is installed in the rear end board, third protective cover and fourth protective cover are two, and are all set up between the two sides of guide rail seat and corresponding side metal cover, one end of third protective cover is connected with the front end board, and the other end is connected with the processing table, one end of fourth protective cover is connected with the rear end board, and the other end is connected with the processing table. The utility model solves the technical problem that the interval exists between the protective cover side wall and Y axis system in the prior art, and part of pollutants enters Y axis system from the interval, resulting in the technical problem that machine tool precision reduces, equipment service life shortens.

This invention relates to a sealing device for a steam turbine, which is disposed at the end of a bearing housing and fitted onto the turbine rotor. The sealing device has a bearing side near the bearing and an air side on the other side. The sealing device includes an upper sealing assembly and a lower sealing assembly. The arc-shaped inner edges of the upper sealing assembly and the lower sealing assembly together form a rotor through hole, and the rotor is located in the rotor through hole. Airtight channels are respectively provided inside the upper sealing assembly and the lower sealing assembly. The airtight channels include a main vent hole, a group of auxiliary vent holes, and an air chamber. The main vent hole extends from the outer edge of the upper or lower sealing assembly into the air chamber. The group of auxiliary vent holes includes several auxiliary vent holes, which extend from the arc-shaped inner edge of the upper or lower sealing assembly into the air chamber.

The application provides a dehumidifier return air pipe and a dehumidifier, the dehumidifier return air pipe is used for conveying refrigerant from an evaporator to a compressor, and comprises: a first return air section, one end of which is connected with the evaporator, and the other end of which extends towards the compressor; a second return air section, one end of which is connected with the compressor, and the other end of which extends towards the evaporator; and a damping section, which is connected with the first return air section and the second return air section respectively to form a conveying path from the evaporator to the compressor. Wherein, the damping section is provided with a first return bend, a first included angle is formed between the first return bend and the other end of the first return air section, a second included angle is formed between the first return bend and the other end of the second return air section, and the first included angle and the second included angle are 90-110 degrees. The dehumidifier return air pipe can effectively control the conveying speed of the refrigerant, reduce the vibration and noise of the dehumidifier return air pipe during work, and provide a better use experience.