133results about How to "Reduce drag torque" patented technology

The invention discloses an outside pressurized type dynamic and static pressure gas lubricating and sealing device, which comprises a moving ring (5) and a seal static ring (11), wherein the moving ring (5) is fixed on a moving ring seat (1) and rotates along with a spindle, and the seal static ring (11) is fixed on a seal cavity (2) and a seal end cover (12); channels (9) for introducing outsidepressurized gas from outside are arranged in the seal static ring (11), and the channels (9) of certain numbers are distributed in the seal static ring (11) along circumference; throttle devices (8) are arranged in the channels (9), and pressure equalizing troughs (7) of certain depth are arranged at the outlets of the channels (9); various dynamic pressure troughs (6) having dynamic pressure effects are formed on the end face of the moving ring (5) or the seal static ring (11), and the inside and outside of the pressure equalizing troughs (7) are provided with seal dams not communicated withthe pressure equalizing troughs; and on-line monitoring is realized by adjusting the pressure of the outside pressurized gas. The pressurized type dynamic and static pressure gas lubricating and sealing device greatly lowers resistance moment and power consumption and improves the phenomenon that the traditional end face seal abrasion is severe.

A friction plate for a wet type multiplate clutch has a substantially ring-shaped core plate and a friction member attached to the core plate. The friction member has a surface which includes a passage formed on a surface of the friction member, the passage extending from an inner peripheral edge of the friction member to an outer peripheral edge of the friction member, and a groove having an opened end which opens to the inner peripheral edge of the friction member and a closed end which is closed at a middle of the surface of the friction member. A width of the groove decreases towards a direction to the outer peripheral edge from the inner peripheral edge of the friction member.

The object of the present invention is to provide an optimizing method for a groove structure of a friction disk of a wet-type friction engaging element, which can reduce drag torque by increasing outgoing flow of lubricating oil on the friction surface and increasing the content of air in the lubricating oil. The optimizing method for a groove structure of a friction disk of a wet-type friction engagement element comprising a sectoral inner section 12 of a groove 10 widening inwardly formed on the surface of a friction member of the wet-type friction engaging element, wherein the outgoing flow per groove area is calculated based on the entrance angle (opening angle) θ of the inner section 12 and the ratio h/w of the full length w of the groove 10 to the length h of the inner section; and then a range of the entrance angle (opening angle) θ of the inner section and the ratio h/w of the full length w of the groove to the length h of the inner section is determined where the outgoing flow per groove area is at least a certain value.

A hydrodynamic coupling device is provided including a housing, a lock up clutch, a friction surface mechanism, a fluid duct and three connecting ducts. The lock up clutch has a clutch element arranged in the housing and may be pressed against the housing. The friction surface mechanism is arranged between the clutch element and the housing. The clutch element and the friction surface mechanism separate an interior of the hydrodynamic coupling device into a first fluid space and a second fluid space. The fluid duct means is in the friction surface mechanism and permits the working fluid to flow into and out of the first fluid space while preventing the working fluid from flowing out of the first fluid space into the second fluid space. The connecting ducts are in the fluid duct, with the first connecting duct is capable of permitting flow of the working fluid to the first fluid space, the second connecting duct is capable of permitting flow of the working fluid into and out of the second fluid space. The third connecting duct is capable of circulating the working fluid within the first fluid space before permitting the working fluid to flow out of the first fluid space, at least when the clutch element is pressed up to the housing with the friction surface arrangement interposed between them.

The invention discloses a vehicle-carried display turning device, and relates to a control mechanism for fixing or mounting a display. The invention provides the vehicle display turning device which does not need to add a self-locking mechanism and a braking device, ensures that the whole friction mechanism has no clearance, has damping function on impact suffered by an output shaft, has a small structure and high mechanical efficiency, makes the output shaft bear larger impact and effectively removes free clearance, and has other characteristics of the output shaft. The device is provided with a motor, a double-wormgear worm, a permanent seat, a damping shaft, an upper friction sheet, a lower friction sheet, a damping block, a clutch shaft, a left mounting bracket, a right mounting bracket, a display screen mounting bracket, a mounting rack, a switch shaft, an angle block, and a switch plate. The double-wormgear worm is arranged inside the permanent seat; the double-wormgear worm is provided with a first wormgear worm and a second wormgear worm; a motor gear is engaged with a worm gear; a worm of the second wormgear worm is fixedly connected with a wormgear of the first wormgear worm; a wormgear of the second wormgear worm is connected with a first damping shaft; and an inner hole of the damping block is matched with the output shaft of the wormgear of the second wormgear worm.

In a wet friction material, a plurality of segment pieces is disposed at both sides of inter-segment grooves. The segment pieces are composed of first segment pieces and second segment pieces. The first segment piece has at least two inner peripheral recesses formed on an inner periphery thereof and at least two outer peripheral recesses formed on an outer periphery thereof. The outer periphery of the first segment piece has a short dimension. The second segment piece has at least two inner peripheral recesses formed on an inner periphery thereof and at least two outer peripheral recesses formed on an outer periphery thereof. The outer periphery of the second segment piece has a long dimension.

The invention relates to a magnetic suspension bearing disc hybrid excitation doubly salient wind generator, and aims to solve the technical problem that an existing magnetic suspension wind generator system is too complicated in structure, high in energy consumption, inapplicable to small and medium fans and the like. The technical scheme includes that the magnetic suspension bearing disc hybrid excitation doubly salient wind generator comprises a rotor, two generator stators, two permanent magnet rings, three magnetic suspension bearing stators, fan blades and a rotor shaft, magnetic suspension bearing control windings are wound on the magnetic suspension bearing stators, the fan blades are mounted at one end of the rotor shaft, the rotor is mounted at the other end of the rotor shaft, the fan blades, the rotor and the rotor shaft synchronously rotate, the two permanent magnet rings are connected with the two generator stators respectively and further connected with the magnetic suspension bearing stators, the permanent magnet rings are embedded among the magnetic suspension bearing stators and the generator stators, the magnetic suspension bearing stators are uniformly distributed on the periphery of the rotor, the periphery of the rotor extends into the magnetic suspension bearing stators, and air gaps are reserved among the magnetic suspension bearing stators and two planes of the rotor.

A forward and rearward motion switching device to be used in an automatic transmission system for a vehicle, comprises a planetary mechanism provided with an input element, an element to be fixed and an output element which are disposed coaxially and are rotatable relative to each other, the planetary mechanism outputting a rotational driving force of an internal combustion engine transmitted to the input element as a rotational driving force in the reverse direction to the rotation of the input element from the output element through the input element, the element to be fixed and the output element, and a brake capable of fixing the element to be fixed of the planetary mechanism. The brake comprises a rotational drum which is integrally formed with the element to be fixed and has an outer peripheral surface, and a brake band that surrounds the outer peripheral surface of the rotational drum to fix the same.

An anti-storm vertical-shaft wind turbine which is based on a blade angle control comprises a vertical shaft, a blade frame, a gravity pendulum mechanism, blades, a double-layer cam, a gear, a rack mechanism and so on, wherein the blades are evenly distributed on a circumference in three pairs. When wind speeds are different, the blade angle is controlled separately through the different guides of the double-layer cam; when the wind speed is normal, the blades are made to always bear the thrust force of the wind with a broad size in one semicircle and to reduce the thrust force of the wind with a narrow streamlined body in the other semicircle and under the blowing of the wind, the blades can produce an inertia which drives the vertical shaft to rotate; when the wind speed exceeds the normal working wind speed, owing to the rack mechanism enhancing and changing the functional cam guide, the blades are made to face the wind with the narrow streamlined body in the two semicircles and to reduce the effect of big wind, which protects the safety of equipment. The wind turbine can make use of the wind force to drive every kind of machine to generate power, pump, irrigate and so on with the safety, the efficiency and the practicality.

The invention discloses a planet wheel type viscous coating automatic efficient mixing device. The planet wheel type viscous coating automatic efficient mixing device comprises a lifting device, a rotating shaft system, a rotating device, a rotating shaft supporting device, a main body support, a transmission device and a planet wheel mixing device; a vertical motor of the lifting device is arranged on the main body support; the rotating shaft system is connected with the rotating device through a spline; the rotating shaft system is connected with the rotating shaft supporting device; the rotating shaft supporting device is connected with the lifting device; the rotating device is fixed on the side wall of the main body support; the transmission device is arranged on a bottom plate of themain body support; and the planet wheel mixing device is connected with the rotating shaft system. The planet wheel type viscous coating automatic efficient mixing device provided by the invention has the remarkable advantages of simple structure, stable work, high mixing efficiency and high stability, realizes large-torque transmission in the working process, reduces starting resistance moment,prevents the motor from being burned out, adopts automatic positive and negative rotation and up-and-down lifting combination, and is high in automation degree and labor-saving.

A friction plate (2) with a friction lining carrier (18) and a paper friction lining (24) arranged on one side of the friction lining carrier (18) to form a friction surface, which comprises at least one first friction lining portion (32) and at least one second friction lining portion (34), the friction surface (36) in the first friction lining portion (32) being raised relative to the friction surface (38) in the second friction lining portion (34). The first friction lining portion (32) exhibits a lower resin absorption than the second friction lining portion (34). The invention furthermore relates to a method for producing such a friction plate (2) and to a wet-running multiplate clutch or brake comprising such a friction plate (2).

The invention discloses a gap-adjustable magneto-rheological brake device. The gap-adjustable magneto-rheological brake device comprises a shaft assembly, a brake disc, a brake disc shell and a coil, wherein the shaft assembly consists of a shaft, a bearing, a bearing top ring and a bearing sleeve; the coil is mounted in the brake disc shell; the bearing sleeve is fixedly connected to the brake disc shell; the brake disc is fixed at the end of the shaft; a gap between the brake disc and the brake disc shell is filled with magneto-rheological fluid; the brake disc shell comprises a front disc, a coil inner ring, an outer ring, a rear disc and a tail disc; the tail disc is mounted in a central hole of the rear disc; the tail disc is parallel to the front disc; the front disc, the coil inner ring, the rear disc and the outer ring encircle to form a space for accommodating the coil; the front disc, the coil inner ring and the tail disc encircle to form a space for accommodating the brake disc and the magneto-rheological fluid; and linear grooves distributed radially are formed in the two sides of the brake disc and the inner surfaces of the front disc and the tail disc. The brake moment of the brake device is obviously increased; the brake effect is improved; and the resistance moment of the disc during rotation is reduced.

The invention relates to a transmission stability optimal design method of a vehicle-borne radar radiating surface antenna multi-position rotating feed source turntable. A vehicle-borne radar multi-position rotating feed source turntable can realize the gap switching of a feed source through a geneva mechanism, and can realize the feed source location function by driving an ejector rod to enter a location hole through a cam by use of the idle stroke of the geneva mechanism. The transmission stability optimal design method of the feed source turntable is characterized in that sliding friction changes to rolling friction by mounting a liner (4) on a geneva wheel deflector rod (5) and by mounting a liner (6) on the ejector rod (2) driven by the cam; and the cam (7) with the parabolic developed curve can keep the ejector rod (2) moving at a stable speed in the movement process. Accordingly, the design method provided by invention can remarkably improve the transmission stability of the feed source turntable.

The invention relates to a novel vertical shaft windmill device, which consists of a vertical shaft, a vane rack, vanes, a guide rail, a pinion-and-rack mechanism and so on. Through control of vane corners, the vanes are guaranteed to be able to always bear the wind thrust in a semicircle with wide area; moreover, the wind thrust is reduced in the other semicircle with a narrow streamline body, thereby the vanes not only can generate the driving force which drives the vertical shaft to rotate under the action of wind and rotate around the vertical shaft but also can rotate around axial lines of the vanes according to stress requirements. Under the condition of reasonable distribution of the vanes (for example, uniform distribution of three pairs or four pairs), the thrust difference can be generated under the action of certain wind speed so as to form the operation torque which directly drives the vertical shaft to rotate. A service machine can be driven without the necessity for changing the direction of torque output of the device, and the efficiency of a windmill can be effectively improved, thereby being simple and practical.

The invention discloses a frame style automatic mixing and stirring device for viscous materials, which comprises a lifting device, a rotary shaft system, a rotary device, a rotary shaft supporting device, a main body support, a clamping device and a planet wheel stirring device. A vertical motor of the lifting device is arranged on the main body support; the rotary shaft system is connected withthe rotary device through a spline; the rotary shaft system is connected with the rotary shaft supporting device; the rotary shaft supporting device is connected with the lifting device; the rotary device is fixed onto a side wall of the main body support; the clamping device is located on a bottom plate of a frame system; the planet wheel stirring device is connected with the rotary shaft system.The frame style automatic mixing and stirring device for the viscous materials provided by the invention has the remarkable advantages of simple structure, stability in operation, high mixing efficiency and good stability, large torque shift and transfer are realized during a working process, a starting resistance moment is reduced, the motor is prevented from burning out, and the device automatically rotates in a forward and backward direction and lifts up and down, so that the automation level is high, and the manpower is saved.

The invention relates to an electric vehicle parking device. When a vehicle is parked, a motor is operated forwards, power of the motor is decelerated through a worm, a worm gear, a screw and a pushing rod and used for pushing a belleville spring and a taper ring, the acting force of the spring is gradually overcome by a pawl pushed by the taper ring, so that the pawl is pushed to rotate towards a ratchet wheel, a single tooth arranged on the pawl is meshed with a toothed groove formed in the ratchet wheel, and therefore the vehicle is parked. When the vehicle is relieved, the motor is operated in the opposite direction, the power of the motor is decelerated through the worm, the worm gear, the screw and the pushing rod, so that the pushing force of the belleville spring and the pushing force of the taper ring are eliminated, the pawl rotates in the direction far away from the ratchet wheel under the acting force of the spring, the single tooth arranged on the pawl is separated from the toothed groove in the ratchet wheel, and therefore the vehicle is relieved. According to the electric vehicle parking device, the structure is simple, an ignition switch is used for sending a switching signal, interference of a driver is not needed in the parking process, and a parking brake is made to work automatically, so that the parking and braking effect is achieved, operation behaviors of the driver are reduced, operation is smooth, and work is reliable.

A vehicle transfer case has a first input drive means, a first output drive means and a second output drive means. A first epicyclic gear set is provided in the transfer case. The first epicyclic gear set includes a first sun gear, a plurality of first planetary gears, a first planet carrier and a first ring gear. A first clutch means is configured to control the first epicyclic gear set. The first output drive means is drivingly coupled to the first input drive means; and the first clutch means selectively drivingly couples the second output drive means to the first input drive means.

In a driving force transmission apparatus, an oil inlet portion for introducing hydraulic fluid from one of spaces to the other one of the spaces is formed, and an apparatus case has an oil outlet portion for delivering the hydraulic fluid from the other one of the spaces to an outside of the other one of the spaces with an oil delivery capacity lower than an oil introducing capacity of the oil inlet portion. A pressure regulation valve for bringing the oil inlet portion into an open state upon reception of hydraulic pressure higher than or equal to a predetermined pressure from hydraulic fluid is arranged at the oil inlet portion.

The invention discloses a frame-type adhesive coating mixing device which comprises a lifting device, a rotating shaft device, a rotating device, a rotating shaft supporting device and a main body supporting device, wherein a vertical motor of the lifting device is arranged on the main body supporting device; the rotating shaft device is connected with the rotating device through spline; the rotating shaft device is connected with the rotating shaft supporting device; the rotating shaft supporting device is connected with the lifting device; the rotating device is fixed on side walls of the main body supporting device. The frame-type adhesive coating mixing device provided by the invention has obvious advantages of simple structure, stable operation, high mixing efficiency and excellent stability. Large-torque transfer in the operating process is realized, start resistance moment is reduced so as to avoid the motor from being burnt out, the automatic positive and reverse rotating and up-and-down lifting operations of the device are combined, the automation level is high, and manual labor is saved.