6results about How to "Avoid vibration noise" patented technology

The application discloses a wire outlet terminal suitable for a dry type variable winding and wrapped by an elastic insulator, which comprises a copper nut and a clamping plate. The copper nut is in a column shape and comprises a quadrangular body and a cylinder body. The end of the cylinder body is connected with a wire outlet head of the variable winding, thereby forming the wire outlet terminal of the variable winding. The clamping plate is provided with a square hole in the middle. The quadrangular body of the copper nut is embedded into the square hole, so that the copper nut is fixed on the clamping plate. After the copper nut is fixed, the clamping plate is fused with the elastic insulator as a whole. The application can strengthen and adapt to the elastic insulator wrapped winding.

The invention discloses a high-speed motor centrifugal magnetic adjusting device, which comprises a composite rotating shaft, a magnetic adjusting rotor, a rigid rotor and a magnetic adjusting device, and is characterized in that the composite rotating shaft is divided into a tooth-shaped section with circumferential transmission teeth and an optical axis section with a smooth surface, the magnetic adjusting rotor is sleeved on the tooth-shaped section and can slide along the axial direction, and the rigid rotor is fixed on the optical axis section; the magnetic adjusting devices are arranged on the end face between the magnetic adjusting rotor and the rigid rotor and evenly distributed in the circumferential direction, each magnetic adjusting device comprises a triangular groove piece, a boss piece and a tension ball, and the triangular groove pieces are fixed to the end face of the rigid rotor and provided with guide slopes to form slope sliding rails. The upper end of the boss piece is embedded into a radial groove in the bottom of the flux adjusting rotor, the lower end of the boss piece is in slope sliding fit with the guide slope, and the tension ball is arranged in a spherical cavity in the radial outer end of the boss piece and limited. Centrifugal force is generated through rotation of the tension ball, the centrifugal force is converted into axial component force through the slope sliding rail to push the magnetic field adjusting rotor to move axially, so that the magnetic field coupling strength of the motor is adjusted, and the device is suitable for a wide-speed-range high-speed motor system.

The utility model discloses a control panel mounting mechanism and window opener for window opener, wherein control panel mounting mechanism for window opener includes outer cylinder, and the middle part of outer cylinder forms step part, and one side of step part forms first mounting hole, and the first mounting hole is installed with screw rod motor, and one end of screw rod motor and step part are in abutment with each other, and the other end of screw rod motor is equipped with circuit board mounting bracket in first mounting hole, and circuit board mounting bracket is detachably connected with circuit board, and the both sides of circuit board are mutually inserted with the power line of screw rod motor and window opener power line through binding post, and circuit board mounting bracket is equipped with the first cap of screw thread connection outer cylinder in the end away from screw rod motor, and the first cap, circuit board mounting bracket and screw rod motor are sequentially pasted between. The utility model can conveniently replace control chip and circuit board for user, and removes the fixing screw on the surface of window opener.

The utility model relates to the field of municipal works, and disclose a kind of municipal rainwater and sewage diversion pipeline automatic switching diverter, including diversion well, the side of diversion well is connected with inlet pipe, the other side of diversion well is connected with rainwater pipe and sewage pipe, the diversion well cavity is provided with diversion subassembly, diversion subassembly includes rotating plate, flow guide part and rotating part, the water inlet of fixed installation at the top end of rotating plate is included in flow guide part, the side of water inlet is connected with converging pipe, the one end of converging pipe is connected with bellow. Set diversion subassembly, rotating part and flow guide part work cooperatively, can be automatically adjusted flow guide direction according to flow, the water flow of sewage is smaller, directly through diversion well through sewage pipe and flow into sewage treatment station, when rain is heavy, the rainwater flow in inlet pipe is big, so that rotating part drives flow guide part to rotate from inclined state to horizontal state, rainwater enters rainwater pipe through diversion subassembly, directly direct discharge natural water body, reduce pipe network pressure.

The application discloses a novel tram frog, which comprises a frog main body, a sliding block and four groove rails fixedly welded with four end heads of the frog main body, an assembly cavity is formed on the upper end face of the frog main body, the sliding block is movably assembled in the assembly cavity, two groups of symmetrical "eight" type frog rim grooves are formed on the upper end face of the frog main body and located on the left and right sides of the assembly cavity, the upper end face of the sliding block is formed with a first butt joint rim groove and a second butt joint rim groove, the first butt joint rim groove and the second butt joint rim groove are in the "eight" type, the position of the sliding block is adjusted, the first butt joint rim groove and the second butt joint rim groove are communicated with corresponding frog rim grooves in the two groups of "eight" type frog rim grooves, and the grooves of the four groove rails are communicated with corresponding frog rim grooves in the two groups of "eight" type frog rim grooves. The tram frog can improve the passing speed of the tram, avoid vibration and noise and reduce the frog point wear.

The air duct assembly of the up-down air-out air conditioner comprises an air duct, a first air guide component and a volute tongue, the air duct comprises an air duct upper air opening and an air duct lower air opening, the first air guide component is arranged at the air duct lower air opening, and in a refrigeration mode, the volute tongue is arranged at the air duct upper air opening. In the heating mode, the first air guide component can move to a first position, the volute tongue can move to a third position, and in the heating mode, the first air guide component moves to a second position, and the volute tongue moves to a fourth position; the air passing area of the air duct lower air opening when the first air guide component is located at the first position is larger than the air passing area of the air duct lower air opening when the first air guide component is located at the second position. According to the air conditioner, the air inlet amount of air entering from the lower portion can be increased in a refrigeration mode, left side air flue vortexes caused by air inlet and air entraining are reduced, vibration noise is avoided, the problem that when a lower air outlet of the air conditioner with the upper air outlet and the lower air outlet serves as the air inlet, large vortexes are generated due to the arrangement of the air guide plate is solved, and the vibration reduction effect is improved.