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

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.

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 provides a power converter for an inverter air conditioner. The power converter comprises a rectification circuit, an AC current collection circuit, an AC voltage collection circuit, a DC voltage collection circuit and a digital signal processor; the rectification circuit is controlled to carry out rectification on a three-phase AC power supply; the AC current collection circuit collects an input current signal of the three-phase AC power supply; the AC voltage collection circuit collects an input voltage signal of the three-phase AC power supply; the DC voltage collection circuit collects an output voltage signal after rectification by the rectification circuit; and the digital signal processor calculates an input current value and an input voltage value of the three-phase AC power supply and an output voltage value of the rectification circuit, carries out real-time feedback calculation to provide a control signal for the rectification circuit according to a feedback calculation result, so that the output voltage of the rectification circuit is stabled in a reference voltage value and the input current phase of the three-phase AC power supply follows the input voltage phase of the three-phase AC power supply. According to schemes of the invention, the power factor is high, the content of harmonic waves is low, and the complex degree and sampling errors of circuits are reduced.

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.

A suspension assembly (40) in an automobile vehicle includes a support frame (42), a control arm (44) movable relative to the support frame (42), and a torsion bar (46) connected to the control arm (44) for resisting movement of the control arm (44). An adjustment lever (50, 150, 250, 350, 450, 550, 650) is connected to the torsion bar (46) for placing the torsion bar (46) in torsion. A hub (74, 174, 274, 374, 474, 574, 674) is positioned in a socket in the adjustment lever (50, 150, 250, 350, 450, 550, 650) for connecting the adjustment lever (50, 150, 250, 350, 450, 550, 650) to the torsion bar (46) at a plurality of primary drive positions at first angular increments as defined by a hexagonal connection. The hub (74, 174, 274, 374, 474, 574, 674) is connected to the adjustment lever (50, 150, 250, 350, 450, 550, 650) by an indexing system to allow positioning of the adjustment lever (50, 150, 250, 350, 450, 550, 650) at a plurality of intermediate drive positions other than the first angular increments defined by the hexagonal connection to the torsion bar (46).

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 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.

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.

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 disc type magnetorheological dual clutch. The disc type magnetorheological dual clutch comprises a first shell, a second shell, a first outer partition plate, a second outerpartition plate, a first excitation coil partition plate, a second excitation coil partition plate, a first excitation coil, a second excitation coil, a first output disc, a first magnetic input disc,a second output disc, a second magnetic input disc and a plurality of connection rods, wherein the first shell and the second shell are fixedly connected with each other in a circumferential adhesionmanner and are enclosed to form a sealed hollow cylindrical structure; the first outer partition plate and the second outer partition plate are arranged between the first shell and the second shell at intervals and are circumferentially fixedly connected with the first shell and the second shell; the first excitation coil partition plate and the second excitation coil partition plate are ring-shaped and are respectively coaxially arranged in a first cavity and a second cavity and are respectively enclosed to form a first ring cavity and a second ring cavity which are sealed; the first excitation coil and the second excitation coil are respectively coaxially arranged in the first ring cavity and the second ring cavity; the connection rods respectively rotatably pass through the first outerpartition plate and the second outer partition plate; and two axial ends of each connection rod are circumferentially fixedly connected with the first magnetic input disc and the second magnetic input disc respectively.

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 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.

According to the present embodiments, a torque applied to a torsion bar is attenuated to thus relatively increase the rigidity of the torsion bar, thereby improving the response performance to a driver's steering wheel operation, increasing a responsive torque range, securing the durability of components such as the torsion bar, and simplifying adjustment of the moving distance of a rack bar compared to the number of revolutions of the steering wheel.

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.

Provided is a device used in the air induction tube of an internal combustion engine after the air filter and before the throttle body, and in particular to a device used to separate an air flow into a plurality of segments. The device can be made of two pieces. Each piece is initially a flat plate. A slit is formed half way through each plate and the corners are cut off or clipped. Each plate is then formed to have two generally curved portions. The pieces are joined via the slits resulting in the device. The pieces are generally perpendicular to each other at their intersection. The device is fitted into the air induction tube upstream of the throttle body, whereby it separates the air flow into distinct segments. The curved walls can be slightly compressed when inserted into an induction tube to hold the assembly in place.

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.

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 cutter with a novel port. The cutter comprises a cutter body and a cutter head which are connected through a bolt, wherein a blade is connected to the cutter head; the cutterbody is in clearance fit with the cutter head through a bicylinder port; the bicylinder port comprises a dual countersunk structure located at one end of the cutter body and a dual boss structure located at one end of the cutter head; and the matching surfaces of the dual countersunk structure and the dual boss structure are multi-section curve surfaces. According to the cutter disclosed by the invention, centering is performed through the guidance of a bicylinder, so that the concentricity of the cutter body and the cutter head is guaranteed; torque is transmitted by the port through the multi-section curve surfaces, so that the torque scope which can be borne by the port can be substantially increased, and the dynamic balance effect is good; the bicylinder port is adopted, so that the cutter can rotate positively or negatively, and the application range is more extensive; and in addition, the cutter disclosed by the invention is good in port hiding performance, so that when the cutter is used, the port is not liable to be influenced by outside, and the maintenance cost is reduced.

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 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.

The invention relates to a diaphragm coupling, comprising a coupling body and a connecting body, a radial slit is arranged between the coupling body and the connecting body, and a radial seam is arranged on the connecting body from the center of the shaft hole to the outside. The first axial slit and the second axial slit, the first axial slit and the second axial slit are on a straight line, the connecting body and the axial end surface of the coupling body are cross-shaped, The connecting body and the axial end surface of the coupling body are provided with four diaphragm fixing bolt holes, two of which are located in the center of the first axial slit and the second axial slit On the line, the first axial slit leads to the outer circular surface of the connecting body and communicates with the radial slit, and the outer end of the second axial slit ends at the corresponding diaphragm fixing bolt hole, And the second axial slit is not connected to the radial slit. The diaphragm coupling of the present invention adopts a semi-separated structure and a bolt connection structure, which effectively increases the torque range of the diaphragm coupling, is convenient to assemble and disassemble, and is more suitable for lengthening the shaft coupling.