104results about How to "Increase friction torque" patented technology

A hinge for controlling a pivotal rate of movement. The hinge includes a first hinge part and a second hinge part that is pivotally mounted to the first hinge part. The first hinge part movable to and between open and closed positions relative to the second hinge part. A connector extends along an axis and the first and second hinge parts are pivotally mounted around the connector on the axis. A gap is defined between at least one of the first and second hinge parts and the connector. A damping fluid is located within the gap for controlling a relative rate of movement of the first and second hinge parts between the open and closed positions.

The invention discloses a gear-shifting control method for an automatic hydraulic speed changer. The gear-shifting control method comprises the steps that in the one-time gear shifting process, only one clutch is started, the other clutch is combined, the torque exchanging process is carried out between the two movement clutches, oil pressure is controlled through the combination of the clutch controlling step and the separated clutch controlling step, and the flexible clutch combination is guaranteed by adjusting the K1 and K2 control pressure in the gear shifting process. The engine torque changing is controlled, and easy, efficient and smooth gear shifting controlling of the automatic hydraulic speed changer is achieved. The test carried out under the full accelerator aperture and other limiting conditions such as gear lifting and gear jumping and reducing in a low-gear gear area shows that the control method can meet the requirements for gear shifting quality of forward torque gear lifting, forward torque gear reducing, negative torque gear lifting and negative toque gear reducing.

A disk brake includes a brake disk with a preferred rotational direction, with a first brake pad with a first center of gravity on a first side of the brake disk, a second brake pad with a second center of gravity on a second side of the brake disk, and a caliper for transmitting the braking forces produced by the second brake pad to the first side of the brake disk. The second center of gravity is offset from the first center of gravity by a predetermined distance in the direction toward the side of the brake disk that trails when the disk is rotating in its preferred direction.

The invention is a 3D surface synchronizer, belonging to automobile driving device field, including: two-stage gear, inner conical ring, outer conical ring, medium ring, synchronizer spring, tooth case, gear hub, slide block, one-stage gear, first groove, slide block groove, and second groove, where inner conical ring, outer conical ring and medium ring are set in sequence from inside to outside to compose a friction ring on the gear, the inner conical ring is covered on the conical surface of the gear, the medium ring covered on the inner conical ring and the outer conical covered the medium ring, the medium ring is connected with the two-stage gear and one-stage gear by the grooves on the stage tooth, the slide groove is on the inner wall of the tooth case, the whole slide block is inserted in the groove of the gear hub, two synchronizer springs tightly adhere to two sides of the gear hub, respectively, and the outer conical ring is set with groove at the big end. It largely enhances synchronous torque, thus shortens synchronous time and widens the working range of the synchronizer, etc.

An extruder having an operative unit composed of a cylinder and at least two screw shafts which are rotatably accommodated therein, a gear unit having at least two output shafts, wherein each output shaft, via a connecting element, is connected in a rotationally fixed manner to one screw shaft, a motor which drives the gear unit and is coupled to the gear unit via a clutch, and a controller installation, wherein each connecting element or each output shaft is assigned a separate measuring installation for determining the applied torque, wherein the measuring installations communicate with the controller installation which, depending on the individual determined torques, controls the clutch which is implemented as a switchable clutch, wherein the controller installation is configured for opening the clutch both when a determined torque exceeds a torque limit value and also when the difference between the two determined torques exceeds a limit value.

The invention discloses an on track maintainable low-power consumption high-reliability space brake, which relates to a space brake. The invention aims to solve the problems of low reliability, high power consumption and incapability of on track maintenance for the existing space brake. A duplex-winding redundant magnet coil provided by the invention is installed in a circular groove; an air gap adjusting sleeve cylinder is sleeved on a connecting shafting; an armature friction plate is connected with a brake shell through a plurality of spring guide rods and a nut; a brake spring is sleeved on each spring guide rod; a large brake gear is fixedly sleeved on the connecting shafting; the end surface of a friction plate boss is in contact with the end surface of a gear boss; a gear shaft is penetrated on a brake cover; the inner shaft end of the gear shaft is provided with a small gear; a spring pressing cover is positioned at the outer side of the brake cover and is fixedly sleeved on the gear shaft; a manual spring is sleeved on the gear shaft; and when the brake works, the small gear is separated from the large brake gear, and when the brake is maintained, the small gear is meshed with the large brake gear. The on track maintainable low-power consumption high-reliability space brake is used for space service equipment.

An adjustable positioning hinge and an assembling method thereof are provided. The adjustable positioning hinge includes a first leaf set, a second leaf set, plural friction damping pieces, a positioning pin and a shaft. The first leaf set includes a first sleeve with a positioning groove concavely formed and disposed along an axial direction of the first sleeve. The plural friction damping pieces are fitted in the first sleeve and configured to form at least one adjustable sleeve set. Each of the plural damping pieces includes a positioning part engaged with the positioning pin accommodated in the positioning groove. The shaft is fixed to the second leaf set. The first leaf set is pivotally connected with the second leaf set via the shaft and the plural friction damping pieces, so that the first leaf set and the second leaf set are rotatable and positioned relative to each other.

The invention relates to a lockwasher which is to be inserted between a bearing element (38) and a screwable element (42), and which includes two rings (12, 14), each of which have an engagement surface (24, 22). Said rings (12, 13), which engage with one another and maintained compressed under axial pressure between said screwable element (42) and said bearing element (38), are capable, when said screwable element is unscrewed, of rotatably engaging with said screwable element (42) and said bearing element (38), respectively, so as to rotate said rings (12, 14) relative to one another, in order to rotatably lock said screwable element (42). According to the invention, said lockwasher (10) is frusto-conical, and said lockwasher (10) is elastically deformable in order to be able to be flattened, forming a spring such that said axial pressure is maintained substantially constant.

The invention discloses a small-diameter shaft shoulder stirring head. The small-diameter shaft shoulder stirring head comprises a clamping part, a shaft shoulder part and a stirring needle which aresequentially connected, the diameter of the needle tip part of the stirring needle is defined as L1, the diameter of the needle root part of the stirring needle is defined as L2, the diameter of the shaft shoulder part is defined as L3, the ratio of L1 to L2 is equal to 1 to 1-1.7, the ratio of L2 to L3 is equal to 1 to 1.8-2.5, the end face of the shaft shoulder part comprises a stirring area close to the stirring needle in the radial direction and an envelope area away from the stirring needle, and the stirring area is provided with a non-concentric circle structure for improving the friction torque. The stirring head has the advantages that stirring and heat production effects can be increased, welding defects can be avoided, and the stirring head is suitable for producing narrow-edge welds.

A ball joint for a vehicle, with a ball pin that has a joint ball, a joint housing that encloses the joint ball and is provided with a pin opening, in which the joint ball of the ball pin is fitted and able to move. The ball pin extends out of the joint housing through the pin opening. An actuator can press a pressure element, in an axial direction, against the joint housing in such a manner that pressure can be exerted by the joint housing and the pressure element onto the joint ball. The actuator acts upon a spring which acts upon the pressure element. The length of the spring can be measured by a displacement sensor.

The invention provides a loading device for testing performance stability of a servo valve. The loading device comprises an elastic force loading mechanism, a friction force loading mechanism, an inertia force loading mechanism, a tested servo mechanism, a main shaft and a support connection mechanism, wherein the elastic force loading mechanism is in threaded connection with the main shaft through a spring shaft; a friction plate of the friction force loading mechanism is coaxially matched with the main shaft; the left end of the inertia force loading mechanism is in threaded connection with the main shaft, and the right end of the inertia force loading mechanism is connected with a hydraulic cylinder piston rod. The loading device is used for loading the elastic force, the friction force and the inertia force of the servo valve so as to detect stability and reliability of performance of the servo valve under the load condition and particularly detect the zero-position stability of the servo valve; the hydraulic test condition of long-term operation of the servo valve is provided; through test of the product performance under long-term operation condition of the servo valve, the reliability of the product can be improved, so that the reliability of the product in the operation time can be ensured.

The invention relates to a housing cover made from plastic on an engine housing or gearbox housing made from metal in an internal combustion engine, said housing cover being secured by a plurality of fastening screws (5) against the housing, wherein the housing cover is secured against a bearing surface of the housing by an encircling fastening flange (3) made from plastic, and the fastening flange (3) is provided with penetration openings (4) through which the fastening screws (5) extend into threaded bores (13), which are coaxial with respect thereto, in the housing, wherein the fastening screws (5) are supported by a screw head (7) against the fastening flange (3) directly or with the interposition of a washer, the fastening flange (3) bears without a gap against the bearing surface of the housing, and the fastening screws (5) are secured within the threaded bore (13) against automatic unscrewing.

The invention discloses a ceramic high-performance disc brake pad for a bus. The disc brake pad comprises, by weight, 14-18% of modified phenolic resin, 18-23% of a fabric material, 50-60% of filler and 8-10% of ceramic fibers, wherein the ceramic fibers are made of at least two of common aluminum silicate fibers, high-alumina aluminum silicate fibers, aluminum silicate fibers containing chromium oxide, aluminum silicate fibers containing zirconium oxide, aluminum silicate fibers containing boron oxide, polycrystalline alumina fibers and polycrystalline mullite; the fabric material is composed of one or more kinds in mineral fibers, glass fibers and paper fibers. The invention further discloses a manufacturing method of the ceramic high-performance disc brake pad for the bus. The ceramic high-performance disc brake pad for the bus is stable in high-temperature friction coefficient, good in abrasion resistance, simple in manufacturing method and low in cost.

A thermal compensation element which has an inner ring, an outer ring, and a washer. The washer is arranged within the inner ring and the outer ring is mounted over the inner ring, encapsulating the washer, which can be a split wave spring. The inner ring and the outer ring each have retention features to ensure they are retained relative to each other. The thermal compensation, which is positioned between a housing or a shaft, can account for variations in loading and/or temperature that may occur to a bearing and a shaft system when the shaft and an associated component are made of different materials and have different coefficients of thermal expansion by ensuring a proper axial preload is maintained on the bearing.