49results about How to "High overload performance" patented technology

The invention relates to the technical field of engineering machinery transmission, in particular to a spring resetting type overrunning clutch for an energy-conservation type loader with low rotating speed. An inclined angle between a spring resetting hole and an inner ring cam ranges from 30 degrees to 34 degrees; the diameter of the spring resetting hole ranges from 4.49mm to 4.538mm, and the depth of the spring resetting hole ranges from 15mm to 15.1mm; and the cross section of a roller path wall is circular arc-shaped. The spring resetting type overrunning clutch has a simple structure, a low reduction ratio, large transmission torque, good overloading performance and long service life, is stable in working and safe and reliable, and is beneficial to realizing energy conservation and emission reduction of the domestic loader and improving the performances of the whole loader.

The invention provides a variable frequency speed regulating disk type motor which uses sinusoidal windings and is in a double-layered type. Through interactive compensation action of two coils in each electrode of two main windings, the electrodes are sequentially connected, a magnetic filed is made to be distributed more evenly, the waveform is close to the sine wave, and declining of torque can not happen any more at a low rotating speed. Meanwhile, in the starting process, an auxiliary winding is connected with an operating capacitor and a starting capacitor, in the operating process, the auxiliary winding and the operating capacitor are connected, and startability and overload capacity are guaranteed. Meanwhile, through switching of the connecting mode of a high voltage and a low voltage, when the motor works in the high voltage of 200V-240V, the first main winding and the second main winding are in parallel connection with an auxiliary winding circuit after being in series connection, and when the motor works in the low voltage of 100V-120V, the first main winding, the second main winding and the auxiliary winding circuit are in mutual parallel connection. The variable frequency speed regulating disk type motor meets the operating demands in different rotating speed range under a general voltage condition in the global range. In addition, integration of the motor and a pump is achieved when the variable frequency speed regulating disk type motor is applied to a vacuum pump.

An anti-lock hydraulic braking system has a wheel brake circuit with a main brake cylinder, wheel brake cylinder and switching valve, and an auxiliary pressure circuit, connected in parallel between the switching valve and wheel brake cylinder on the wheel brake circuit. With ABS control, the switching valve can be switched from a basic position, where it hydraulically connects the main brake cylinder and wheel brake cylinder, to a switched position where it prevents a build-up of braking pressure on the wheel brake cylinder via the main brake cylinder, while the braking pressure on the wheel brake cylinder can be modulated by the auxiliary pressure circuit.

The invention relates to a preparation method of a heating type thermocouple liquid level measurement sensor. According to the preparation method of the heating type thermocouple liquid level measurement sensor, prepared heating elements and prepared armored cables are assembled together and fully sealed so that the heating type thermocouple liquid level measurement sensor can be obtained. The heating type thermocouple liquid level measurement sensor prepared through the method has the advantages of being capable of accurately judging a liquid-gas (vapor) interface under the conditions of high temperature and high pressure, good in reproducibility and high in resolution, capable of meeting requirements of an overload test, capable of accurately judging the liquid-gas (vapor) interface under severe environments of high temperature and high pressure, simple in process and good in uniformity of products.

A circulating type permanent magnet linear motor belongs to the technical field of electromagnetic power driving. A guide rail type casing of the circulating type permanent magnet linear motor is in a square tube shape, the lower end face of the guide rail type casing is provided with a long straight slot along the direction of an axial lead thereof; a conveyor belt type rotor is formed by laminating of a rubber basic layer and a reinforced fiber layer, and the external part of the conveyor belt type rotor is wrapped with a layer of wrapping layer; a plurality of permanent magnets and permanent magnet support strips are inlaid in the rubber basic layer; the upper end of a first belt wheel support, the upper end of a second belt wheel support, the conveyor belt type rotor, a first belt wheel and a second belt wheel are all arranged in the guide rail type casing, so that a gap is provided between the lower end face of the conveyor belt type rotor and the upper end face of an upper electrode of a plate-type stator; and end faces at two sides of the lower end face of the conveyor belt type rotor are in friction abutting with the upper surfaces at two sides of the long straight slot at the lower end inside the guide rail type casing. The circulating type permanent magnet linear motor of the present invention can achieve long-distance driving of a low-cost linear motor, and has the advantages of simple structure, good heat dissipation, good overload capacity and good climbing performance of a linear motor at the same time.

The invention relates to a motor, in particular to a permanent-magnet synchronous traction motor for a motor train. The permanent-magnet synchronous traction motor for the motor train solves the problem that an existing permanent-magnet synchronous motor is not suitable for being directly used as a permanent-magnet synchronous traction motor for a motor train due to structure defects. The motor adopts a novel rotor magnetic circuit structure punching plate, a high-integration compact type rotor structure, a detachable connecting box structure and a lead structure. A connecting box can be conveniently disassembled so that the motor can be installed easily. A U-shaped magnetic circuit permanent magnet structure of an inner rotor is adopted, the magnetic separation bridge and circular bead design is added, and therefore the start and overload capacity of the motor can be improved. A rotor pressing ring at the driving end integrates rotor core pressing, permanent magnet end face pressing, rotor dynamic balancing and an inner seal ring labyrinth seal structure into a whole, the advantages that the structure is compact, the axial occupied space is small, and the installation is convenient are achieved, and the motor can be widely applied in the field of locomotive trains. According to the research, development and the operation of the permanent-magnet synchronous traction motor for the motor train, realistic bases are supplied for the permanent-magnet motor to research and develop a permanent-magnet traction motor structure with higher power, higher rotation speed and higher power density.

This application is applicable to the technical field of motor drive control, and provides a motor function safety control method and device. The method includes: obtaining the control command data sent by the host computer; obtaining the operation data of the motor; calculating the operation data to obtain the motor safety Running data; compare the size of the control command data and the safe running data; if the control command data is less than or equal to the safe running data, send the control command data to the motor controller, and control the motor controller to drive the motor to run according to the control command data. This application realizes the control of the current or power of the motor, ensuring that the actual temperature value of the motor is not greater than the temperature limit value, and can maximize the overload performance of the motor, and at the same time increases the rotation speed of the motor system through motor overload moment density.

The invention relates to a method for manufacturing a non-aging aluminum alloy wire, in particular to a method for manufacturing an aluminum alloy wire used in an overhead power transmission line, and a product produced by the method. The non-aging aluminum alloy wire of the present invention includes the following ingredients in weight percentage: Mg 0.08-0.20%, Fe 0.10-0.25%, Cu0.05-0.18%, the sum of Ti, V, Mn, Cr elements≤0.01%, and the rest is Aluminum liquid. The conductivity of the aluminum alloy wire produced by the above alloy formula can reach 59%IACS, and the strength can reach 240-255MPa. The aluminum alloy wire stranded with this single wire has high conductivity, low resistance loss, good arc sag characteristics, and no hysteresis. Loss, overload performance and other characteristics.