30results about How to "Increased torque range" patented technology

An axial gap type motor according to the present invention includes: a rotor; and a pair of stators which are arranged to face each other and hold the rotor from both sides thereof along a rotation axis. The rotor includes: electromagnets which are provided on the rotor as main magnets, and arranged along a circumferential direction so that directions of magnetic fluxes thereof are parallel to the rotation axis; and sub permanent magnets which are provided on the rotor, arranged in the vicinities of circumferential end portions of the main magnets, and are magnetized orthogonal to the rotation axis and a radial direction.

An axial gap type motor according to the present invention includes: a rotor; and a pair of stators which are arranged to face each other and hold the rotor from both sides thereof along a rotation axis. The rotor includes: electromagnets which are provided on the rotor as main magnets, and arranged along a circumferential direction so that directions of magnetic fluxes thereof are parallel to the rotation axis; and sub permanent magnets which are provided on the rotor, arranged in the vicinities of circumferential end portions of the main magnets, and are magnetized orthogonal to the rotation axis and a radial direction.

This electric motor of the present invention is formed by an inner circumferential side rotor, an outer circumferential side rotor, and a planetary gear mechanism that are placed coaxially. The planetary gear mechanism is a single pinion type that includes a first planetary gear train and a second planetary gear train that are each single gear train. A first planetary carrier that supports the first planetary gear train is able to pivot around an axis of rotation, and a second planetary carrier that supports the second planetary gear train is fixed to a stator. The electric motor is further provided with an actuator that pivots the first planetary carrier by a predetermined pivot amount around the axis of rotation.

An electric-motor-equipped vehicle of the present invention includes an electric motor which receives a power supply from a storage apparatus and drives the vehicle, or assists a driving of the vehicle by an internal combustion engine. The electric motor includes: an inner circumference side rotor and an outer circumference side rotor which are each provided with magnet pieces, and rotation axes of which are coaxially arranged; a stator which is arranged on an outer circumferential side or an inner circumferential side of the inner circumference side rotor and the outer circumference side rotor; and a phase modification device capable of modifying a relative phase between the inner circumference side rotor and the outer circumference side rotor.

The invention discloses a power tool. The power tool comprises a shell, a motor, a planet gear reducing mechanism, a power output mechanism, a first function switching mechanism, a first impact switching mechanism, a second function switching mechanism and a second impact switching mechanism, wherein the first function switching mechanism is used for selectively setting the power tool in one of a drilling function, an impact wrench function and a screwdriver function; the second function switching mechanism is used for selectively setting the power tool in an impact drill starting or stopping function; the second impact switching mechanism comprises a second clutch part, static end teeth and movable end teeth; the static end teeth are fixedly arranged in the shell; the movable end teeth are arranged on a working shaft in a sleeving way; the movable end teeth can move axially under the driving action of the working shaft so as to be meshed with the static end teeth; the second clutch part is driven by the second function switching mechanism to cut off or allow the meshed transmission connection between the static end teeth and the movable end teeth. According to the power tool, the impact drill function is integrated on the basis of the conventional four-function power tool, and the torque range of the screwdriver function is expanded, so that the application performance is improved greatly.

A torque converter comprises a pump having a pump shell and impellers; a turbine having a turbine shell and runners; a stator arranged between the pump and the turbine and is supported by the housing; and an operation fluid filled in the pump and in the turbine. Transmission torque limit means is arranged between the stator and the housing to so limit the transmission of torque transmitted to the stator as will not to increase in excess of a predetermined value.

The invention discloses a dual-redundancy electric steering engine which is composed of two motors, a planetary gear transmission reducing mechanism, a planetary pin roller lead screw pair and a sleeve push rod; the working principle of a planetary differential gear train is utilized to transmit movement from the two motors to the sleeve push rod through driving the planetary pin roller lead screw pair by the planetary gear transmission reducing mechanism, and rotary movement of a lead screw is converted to straight reciprocating motion of the sleeve push rod through revolution and rotation of a pin roller. The dual-redundancy motors and the planetary pin roller lead screw pair are adopted for driving to realize large stroke and ensure straight line actuation property of an actuator; the planetary pin roller lead screw pair has the characteristics of high carrying capacity and accurate positioning of reciprocating motion; when one motor breaks down, the other motor can still drive a system to act normally so as to improve the reliability of the system; when the two motors work normally, power confluence is realized to provide larger input power for the system; and the dual-redundancy electric steering engine is simple in structure, convenient to maintain and excellent in speed regulation property.

The invention relates to a diaphragm coupler which comprises a coupler body and a connector. A first radial slot is arranged between the coupler body and the connector. A first axial slot and a second axial slot are formed in the connector outwards from the center of an axle hole, and the first axial slot and the second axial slot are located in one straight line. The axial end face of the connector and the axial end face of the coupler body are in cross shapes. The axial end face of the coupler body and the axial end face of the coupler body are each provided with four diaphragm fixing bolt holes, and two diaphragm fixing bolt holes are located in the center line of the first axial slot and the second axial slot. The first axial slot leads to the outer circle face of the connector and communicates with the radial slot, the outer side end of the second axial slot blocks the corresponding diaphragm fixing bolt hole, and the second axial slot does not communicate with the radial slot. According to the diaphragm coupler, a semi-separated structure and a bolt connecting structure are adopted, the torque range of the diaphragm coupler is effectively widened, demounting and mounting are convenient, and the diaphragm coupler is suitable for lengthened couplers.

Methods and systems for cranking an engine are disclosed. In one example, the engine may be started in one of two ways depending on operating conditions. Specifically, the engine can be started via a lower power output electric motor or a higher power output electric motor.

The invention relates to an automotive transmission, in particular to an all-gear automotive automatic transmission, which is mainly characterized in that an electromagnetic valve is arranged on an oil way of a hydraulic power mechanism, a gear handle and a latch are arranged on a hydraulic power output rod and unilaterally combined by a gear A and a gear B which are the same in tooth number and diameter, a plurality of AB gear sets are serially connected on a pair of channel slot shafts, the channel slot shafts in forward series connection serve as a spindle, the channel slot shafts in reverse series connection serve as a counter shaft, the gear A on the spindle serves as an advancing gear, the gear A on the counter shaft serves as a non-out-of gear, velometers are arranged on the spindle and the counter shaft respectively, and a sensor is arranged on the latch. The all-gear automotive automatic transmission has the remarkable advantages of simple structure, reasonable design, starting convenience, few faults, speed change smoothness, quick response and high transmission efficiency.

The invention provides a gear with teeth capable of being independently disassembled and assembled. The gear comprises a tooth disc and a tooth ring. The tooth disc comprises a tooth disc body and a first mounting hole. The tooth ring comprises convex teeth, concave teeth and reinforcing teeth. The convex teeth comprise buckle strips and second mounting holes. The concave teeth comprise buckle grooves and second mounting holes. The reinforcing teeth comprise buckle strips, buckle grooves and second mounting holes. According to the gear with the teeth capable of being independently disassembled and assembled, the teeth on the gear are modularized, and the multiple fixing effect is achieved through cooperation of the buckle strips and the buckle grooves and the first mounting hole and the second mounting holes which are correspondingly formed. When the gear with the teeth capable of being independently disassembled and assembled is used, on the premise that unnecessary parts are not disassembled, one or more teeth needing to be replaced are independently replaced, disassembling and assembling are convenient, the bearable torque is high, the work efficiency is improved, and the maintaining cost is reduced.

A transmission system capable of achieving three variable transmission processes comprises an input shaft, a sun gear shaft, an input gear, a linkage gear, an intermediate driving gear, a first clutch, a second clutch, a planetary mechanism, a hydraulic pump and a hydraulic motor. The input shaft and the sun gear shaft are arranged in parallel. The input gear is meshed with the linkage gear. The input end of the first clutch is in transmission connection with the input shaft. The driven end of the first clutch is fixedly connected with the input gear. The input end of the second clutch is in transmission connection with the sun gear shaft, and the driven end of the second clutch is fixedly connected with the linkage gear. A sun gear in the planetary mechanism is fixedly connected with thesun gear shaft. A tooth ring is fixedly connected with the intermediate driving gear. A planet carrier is fixedly connected with the linkage gear. A rotor of the hydraulic pump is fixedly connected with the input shaft. A rotor of the hydraulic motor is fixedly connected with the sun gear shaft. The hydraulic pump and the hydraulic motor are connected into an oil supply loop in series. The transmission system capable of achieving the three variable transmission processes enables the variable-speed transmission process to both have the features of mechanical transmission and hydraulic transmission, and therefore the transmission system capable of achieving the three variable-speed transmission processes can meet the variable transmission needs of different types of mechanical equipment.

The invention discloses a control method and circuit of a single-phase motor. The method includes steps: obtaining a to-be-output torque of the single-phase motor; determining the torque range which the to-be-output torque belongs to from a plurality of torque ranges preset by the single-phase motor, wherein each torque range corresponds to a winding and a control switch; and controlling the switch-on of the corresponding control switch according to the torque range which the to-be-output torque belongs to so that the corresponding winding is regarded as the working winding of the single-phase motor. According to the control method and circuit, the technical problem that in the prior art, the working torque range of the single-phase motor is fixed, and the utilization rate and the application range of the motor are limited is solved.

The invention discloses a double-gain clutch control system of automobiles, which comprises a main pressure source, a variable electromagnetic valve, a clutch regulating valve, a gain control device and a cutch. The clutch is provided with a pressure oil chamber which is connected to the regulating valve oil outlet of the clutch regulating valve through a clutch pressure oil passage; the clutch regulating valve is connected to the main pressure source through an oil-supply oil passage; the gain control device comprises a pressure increasing valve, a trigger pressure oil passage, a clutch control oil passage, a gain control oil passage and an oil outlet, is connected to the clutch regulating valve through the clutch control oil passage and the gain control oil passage and controls the gain of a clutch control pressure according to the signals of the trigger pressure oil passage so that the clutch has a high gain for a high torque and has a low gain for a low torque. Therefore, the automatic gearbox has a high torque range at a low speed and has a better gear-shifting quality at a high speed.

A threaded connection includes a pin including a wedge male thread having a varying-thread-width portion and a box including a wedge female thread having a varying-thread-width portion. The threaded connection is constructed such that, when both stab flanks and load flanks of the male thread of the pin contact the box, the shoulder on the pin is not in contact with the shoulder on the pin, and, with a further rotation in the make-up direction, the shoulder on the pin is capable of contacting the shoulder on the pin before the threads (i.e. male and female threads) yield.