41results about How to "Increase axial load" patented technology

A plug-type connection arrangement for a hose and a pipe, the connection arrangement comprising a sleeve having an outer wall and an inner wall, wherein the hose is insertable from an end of the sleeve and is clampable in the sleeve, wherein the sleeve has at another end thereof a first annular groove with an open resilient connecting ring which extends over more than 180° and is lockable to the sleeve and the pipe, and a sealing ring for sealing the sleeve relative to the pipe in a connected state of the pipe and the hose, the connecting ring being comprised of a plate spring ring with inwardly directed flanges at both circumferential edges thereof, wherein the flanges of one circumferential edge are engageble in the first annular groove and the flanges of the other circumferential edge are engageable behind a holding rib on the pipe, wherein the sealing ring is mounted in a second annular groove formed by the inner wall of the sleeve and the axially inner wall of the first annular groove, and wherein an end portion of the pipe is insertable into the sleeve.

A threaded joint comprises a pin coupled to a box with an annular groove, one or a pair of seal rings, and hydraulic actuating means to pressurize the seal ring or rings against the pin to provide sealability of the joint. The seal ring or rings comprise a frustoconical surface, an external surface, and an internal surface with one or more protruding annular ribs. In the unpressurized state, the seal ring or rings do not protrude from the groove. In the pressurized state, the frustoconical surface of the sealing ring is in sealing contact with an internal surface of the annular groove of the box, and the annular ribs of the sealing ring are in sealing contact with the external surface of the pin.

For heating a pipe-in-pipe pipeline with power provided through an electric cable, mid-line connector is provided including: a connector housing joinable to the outer pipe of the pipeline; a blank pipe positioned within the connector housing and joinable to the inner pipe of the pipeline; at least one pocket mounted in the connector housing, wherein the cable is mateable with the at least one pocket; a blank pipe conductor electrically coupled between the at least one pocket and the blank pipe; and an outer pipe conductor electrically coupled between the at least one pocket and the outer pipe.

The invention relates to a wing box (1) of an aircraft (2) with a stiffened shell structure (3), consisting of fiber reinforced material comprising a skin (4) for absorbing shear loads, and several stringers (5) arranged on the inner side of the wing box (1) for absorbing axial loads, in which at least 60% of the mass of the stiffened shell structure (3) is concentrated in the stringers (5), wherein the stringers (5) provide at least 80% of the axial stiffness of the stiffened shell structure (3). In the specific case of wing structure, this embodiment allows the use of unbalanced laminates for the skin (4) to induce higher nose-down twist of the wing box (1) without any loss in bending stiffness and so envisaging higher weight saving capability.

Load sharing stacked bearing structure including first bearing having a first inner race, first outer race and first set of roller elements housed between first inner race and first outer race and a second bearing having a second inner race, second outer race and second set of roller elements housed between second inner race and the second outer race. A housing surrounds the first and second bearings. First compliant element is provided with the first compliant element connected between the housing and the first outer race. The first compliant element, first outer race and housing define at a pressure chamber. The first outer race axially slidable relative to the second outer race such that an increase in pressure in pressure chamber causes a change in axial spacing between the outer races. This induces an additional axial load on the bearings which helps balance thrust load sharing.

A wind turbine which includes a direct drive generator is disclosed. The direct drive generator includes an inner stator arrangement and an outer rotor arrangement and a stationary shaft with a center axis. The stator arrangement is arranged on the outside of the stationary shaft, the rotor arrangement is substantially arranged around the stator arrangement, on the front side at least indirectly supported or arranged on the stationary shaft by a main bearing and on the rear side at least indirectly supported or arranged on the stationary shaft by a support bearing. The main bearing and / or the support bearing is a four-point bearing.

A rolling bearing provides an inner ring and an outer ring concentrically about a rotation axis X-X′ running in an axial direction, and at least first and second axial bearings each axially disposed between the inner ring and the outer ring and each having at least one row of rolling elements, the first and second axial bearings being spaced apart from each other in the axial direction. The rolling bearing further provides only one radial bearing radially disposed between the inner ring and the outer ring and having at least one row of rolling elements. The radial bearing is disposed between an outer raceway located on the inner ring and an inner raceway located on the outer ring.

An elastomer bush bearing, wherein the bearing body (2) is encapsulated through axial flanges (4, 4′) of the outer bearing sleeve (3), with the bush bearing having an elastomer bearing body (2) with a special profile in the axial direction. The bearing body (2) is employed in constructing the bush bearing of the invention, which is capable of supporting high radial loads even with low radial stiffness and without adversely affecting its stability and service life. The two axial end faces (5, 5′) of the bearing body (1) each have undulated contours which extend in the circumferential direction (u) in the same direction, both with respect to one another and also over the entire region of the material thickness (d) of the bearing body (2). The end faces (5, 5′) of the bearing body (2) thus have wave troughs (6, 6′, 7, 7′) and wave crests (8, 8′, 9, 9′), whereby the corresponding wave troughs (6, 6′, 7, 7′) of both end faces (5, 5′) and their wave crests (8, 8′, 9, 9′) are formed so as to face one another, and each extend radially over the entire material thickness (d) of the bearing body (2) in the respective circumferential segment.

An intermediate roller assembly for a straightening machine for medium and thick plates is used for a sixfold type medium and thick plate straightening machine roller box in steel and nonferrous industries. An intermediate roller is provided with a spiral groove, two ends of the intermediate roller are provided with a thrust cylindrical roller bearing and a needle bearing, an end cover is arranged on the end face of the intermediate roller, the needle bearing and the thrust cylindrical roller bearing are arranged in a bearing casing, and the thrust cylindrical roller bearing is located axially. A lip opening of a sealing ring is attached to a sealing loop, the sealing ring is arranged on the bearing casing, an inner hole of the sealing loop is provided with an annular groove, a dustproof cover fastens the sealing loop on the intermediate roller through a screw, an inner conical face of the dustproof cover enables metal foreign matters to be thrown out in a centrifugal mode or fall freely, a top cover is connected with the bearing casing through a screw, the outer end face of the top cover is a spherical face, and the bearing casing is located axially through the end cover. The intermediate roller assembly has good sealing performance, can effectively prevent the foreign matters from entering the bearings, is high in bearing capacity, can reduce fault hidden danger and avoids tremendous economical loss caused by unexpected halt and overhauling.

The invention discloses a servo heat dissipation and damping motor. The motor comprises a motor body, a cooling cavity, a ventilation cavity and a motor cavity are formed in the motor body from left to right respectively, and a motor shaft is arranged in the middle of the motor body and rotatably connected with the motor body through first ball thrust bearings and second ball thrust bearings separately; blades are installed on the portion, located at the left end of the motor shaft, in the ventilation cavity, multiple vent holes communicated with an inner cavity of the motor shaft are furtherformed in the side surface of the left end of the motor shaft, and multiple exhaust covers are arranged on the left side wall of the ventilation cavity in the circumference direction; ventilation pipes are connected to the left ends of the exhaust covers, the vertical parts of the ventilation pipes are located in the cooling cavity, and the upper horizontal parts of the ventilation pipes extend out of the right end of the motor body. The servo heat dissipation and damping motor is high in stability, can conduct heat dissipation by itself during operation, and has a good heat dissipation effect, the motor works for a long time conveniently, and the service life of the motor is prolonged.

The invention discloses a straight beam buckling electrostatic type micro mechanical optical switch which mainly solves the problem that the existing switch is high in driving voltage, long in switching time, high in energy consumption and the like. The straight beam buckling electrostatic type micro mechanical optical switch comprises a micro beam (307) with a diamond-shaped structure in the middle position, a fixed base (304), an outer framework (310), driving electrode pairs (305 and 306), adjusting electrode pairs (302 and 303), a micro reflecting mirror (314) and optical fibers (313), wherein the micro beam (307) is connected with the fixed base (304) together, and a span supporting structure (309) is adopted at the junction of the micro beam (307) and the fixed base (304); the fixed base (304) is fixed with the outer framework (310) through a wedge-shaped extrusion structure (301), and guide mechanisms (308) are arranged at the two ends of the fixed base (304); the adjusting electrode pairs (302 and 303) adopt comb tooth-shaped structures and are symmetrical to each other up and down; a guide groove (312) is formed in the middle position of the outer framework (310); the optical fibers (131) are perpendicularly placed in a crossed manner; and the micro reflecting mirror (314) is fixed at the front end of a micro mirror bracket (311). The straight beam buckling electrostatic type micro mechanical optical switch has the advantages of low driving voltage, short switching time, low energy consumption and expandable switch array and can be used for key optical devices of optical communication network equipment.