184results about How to "Avoid wear damage" patented technology

The invention discloses a duel-clutch stepless speed change series parallel hybrid power system in the technical field of automobiles, which comprises an engine, a first clutch, a first motor, a second clutch, a second motor, a speed reduction differential gear, a driving axle, a wheel, an energy storing device, a motor control device, an attachment drive transmission gear and a starting motor, wherein a crank shaft output end of the engine is connected with a rotor of the first motor through the first clutch; the rotor of the first motor is also connected with a rotor of the second motor through the second clutch; the rotor of the second motor is connected with the wheel through the speed reduction differential gear and the driving axle; the energy storing device is electrically connected with the motor control device; the attachment drive transmission gear is connected to the rotor of the first motor to provide hybrid drive for attachments for air-conditioning, braking, steering and the like; and the starting motor is connected with the crank shaft output end of the engine through an input end driving disc of the first clutch. The duel-clutch stepless speed change series parallel hybrid power system has the characteristics of entire car stepless speed change series parallel drive, attachment system hybrid drive, low system cost, low development cost, low maintenance cost and the like.

The invention provides a coaxial coupling driving system of double planetary gear systems and double motors. The coaxial coupling driving system comprises the double motors, the double planetary gear systems and the like. Each planetary gear system comprises a gear ring, a planetary carrier and a sun wheel. A rotor of the first motor is connected with the gear ring of the first planetary gear system. A rotor of the second motor is connected with the sun wheel of the first planetary gear system and the sun wheel of the second planetary gear system through synchronizers correspondingly. The planetary carriers of the two planetary gear systems are connected with an output shaft. The gear ring of the second planetary gear system is connected with a shell. The output shaft is connected with the input end of a deceleration differential. The output end of the deceleration differential is connected with two wheels through two half shafts. A motor control device is connected with an energy storage device and conducts electric power transmission. The motor control device is further connected with the first motor and the second motor and outputs a control command. The coaxial coupling driving system has the characteristic that the vehicle dynamic property, the energy consumption economical efficiency, the geographical adaptability and the application adaptability are better.

A medical apparatus and method of use for implanting a percutaneous catheter in a patient's body which catheter can be easily positioned, repositioned, and replaced. The apparatus includes an elongate sleeve comprising a wall surrounding an interior elongate passageway. The passageway extends from a sleeve proximal end to a sleeve distal end. The sleeve is intended to be percutaneously implanted through an incision in the patient's skin so that the sleeve distal end resides subcutaneously. The sleeve outer peripheral surface carries a layer of porous material intended to be placed just under the patient's outer skin layer in contact with the dermis to promote tissue ingrowth for anchoring the sleeve and forming an infection resistant barrier. The sleeve passageway is dimensioned to snugly accommodate the outer surface of catheter while permitting the catheter to slide relative to the sleeve. A sealing device is mounted around the catheter adjacent to the sleeve proximal end to prevent deleterious material from migrating into the patient's body along the catheter outer surface.

A drive system with mixed power and stepless speed variation is composed of engine with crankshaft output, the first and the second motors and their high-voltage circuits and drive controller, clutch, drive shaft, differential speed reducer, the first and the second semi-shafts, energy accumulator, and the high-voltage circuit for the energy accumulator.

A retractable push button pen includes a barrel, a pen refill, which has a refill body with hooks at the front side and a writing tip extended out of the front side of the refill body, an extending and retracting mechanism formed of a slide, a limiter and a spring member and received inside the barrel around the writing tip received in the barrel, and a press-control mechanism formed of an absorption rod, which is connected to the writing tip to supply an ink, a cylindrical cap holding the absorption rod and extending out of the rear side of the barrel for pressing by a user to move the writing tip out of the barrel for writing and a pen clip, which has a positioning protrusion engageable into the barrel to lock the pen refill in the extended position and a press portion for pressing by a user to unlock the positioning protrusion from the pen refill.

The invention discloses a four-die stepless speed change series-parallel hybrid power driving system, belonging to the technical field of automobile hybrid driving. The system comprises an engine, a clutch, two motors, corresponding transmission chains of the two motors, a power transfer switching device, a planetary gear differential device, a deceleration differential device, an energy storage device and a motor control device. The system provided by the invention has the characteristics of better technical inheritance with existing vehicles, overall dynamic property, fuel economy and low emission, and has functions of four-die driving, stepless speed change and series-parallel system; the problems of insufficient driving power, lack in ramp starting ability, large system volume and high cost of the existing similar technologies and the problems that the stepless speed regulation of the engine cannot be realized and the batch industrialization is difficult as the electromechanical components are difficult to manufacture are solved, and organic combination of high performance, low development cost, low system cost and easy implementation of scale industrialization is realized.

The invention discloses a subsoiler based on a dynamic bionic principle. The subsoiler comprises a subsoiler mounting handle, a limiting device, a bidirectional torsion spring, a subsoiler handle, a subsoiler tip and a pulley, wherein the subsoiler mounting handle and the subsoiler handle are mounted through a bearing, so that the subsoiler handle can be rotated at the bottom of the soil; the pulley is mounted at the rear end of the subsoiler handle, is in contact with the limiting device and is used for supplying a support force along a heading direction and limiting the rotating angle; the bidirectional torsion spring is mounted at the external end of the bearing, so that the rotating resetting of the subsoiler is realized and the dynamic operation effect is achieved; the subsoiler is optimized through bionic curve design, so that the improvement of the soil-breaking property is ensured; the dynamic bionic principle is designed and the moving form of the whole subsoiler is similar to the forms of the animals, such as, earthworm, mole cricket, and the like, in the moving process, so that the dynamic bionic motion is realized.

A dual-feedback compact type high-precision hollow integrated joint comprises a harmonic reducer (1), a frameless motor (2), a brake (3), an incremental encoder (4), an absolute encoder (5), a high-speed motor shaft (6), a low-speed hollow shaft (7), an output flange (8), motor shaft bearings (9 and 10), a hollow shaft bearing (11), a driver (12), a shell (13), a first bearing stand (14), a secondbearing stand (15), a third bearing stand (17), an inter-joint connection cable (16) and a transitional shaft (18), wherein a motor rotor (22), the incremental encoder (4) and the brake (3) are installed on the high-speed motor shaft (6), and the absolute encoder (5) is installed on the low-speed hollow shaft (7). According to the dual-feedback compact type high-precision hollow integrated joint,the control precision is high, joints are hollow so as to achieve wiring, the structure is compact, the degree of integration is high, the weight is low, and the power density is high; and as the reliable brake is provided, the overall structure curve is smooth and has no corner, safety and reliability are achieved, and the man-machine collaboration is good.

The invention provides a multi-purpose adaptive second-gear multimode stepless speed changing electric transmission integrated power system. The multi-purpose adaptive second-gear multimode stepless speed changing electric transmission integrated power system comprises a first motor and the like; a planetary gear train comprises a gear ring, a planet carrier and a sun gear; the rotor of the first motor is connected with the gear ring of the planetary gear train; the rotor of the second motor is connected with the sun gear of the planetary gear train and the input end of a transmission chain, respectively; a gear shifting device is connected with the input end of a speed reducing differential mechanism and control on power transfer from the planet carrier of the planetary gear train and the output end of the transmission chain to the speed reducing differential mechanism is realized; the output end of the speed reducing differential mechanism is connected with two wheels by use of two half shafts; a motor control device is connected with an energy storage device to transfer electric energy; the motor control device is further connected with the first motor and the second motor, respectively, and outputs control instructions. The multi-purpose adaptive second-gear multimode stepless speed changing electric transmission integrated power system has the characteristics of better technical inheritance to the existing vehicles, whole vehicle dynamic property, fuel economy and low emission.

The invention discloses an external-cold-source natural-gas-hydrate hole-bottom freezing rope sampler and a sampling method. The external-cold-source natural-gas-hydrate hole-bottom freezing rope sampler is composed of a salvaging device, an internal-pipe assembly and an external-pipe assembly. The salvaging device comprises a salvaging mechanism, a cold-source storing mechanism, a connecting positioning and locking mechanism and a connection valve mechanism; the internal-pipe assembly comprises a connection valve mechanism, an elastic-clamp lifting mechanism, an elastic-clamp positioning mechanism, a hanging mechanism, a single action mechanism, an adjusting mechanism and a core mechanism. According to the external-cold-source natural-gas-hydrate hole-bottom freezing rope sampler and the sampling method, the salvaging device carrying cold sources can be connected with the internal-pipe assembly underground in a sealed mode, low-temperature cold sources are controlled by the connecting positioning and locking mechanism and the connection valve mechanism to be injected into a core freezing cavity from a cold-source storing cavity, and the core freezing process is completed through heat conduction between low-temperature cold sources and a core. Sealing connection between the salvaging device and the internal-pipe assembly is controlled, and connection is accurate and stable. According to the external-cold-source natural-gas-hydrate hole-bottom freezing rope sampler and the sampling method, sealing connection between a cold storing cavity and an underground drilling tool does not rely on impact of the salvaging device.

The invention discloses an electric power communication engineering cable laying device which comprises a base, a first supporting plate, a second supporting plate, a guide roller mechanism and a guide mechanism. The guide roller mechanism and the guide mechanism are sequentially arranged according to the moving direction of a cable; one end of the first supporting plate is arranged on the upper surface of the base, and the second supporting plate can move up and down along the first supporting plate; the guide roller mechanism comprises two guide rollers and a guide roller frame, the guide roller frame is fixedly arranged on the upper surface of the second supporting plate, the guide rollers are rotatably mounted on the guide roller frame, and a gap allowing a cable to penetrate through is formed between the two guide rollers; the guide mechanism comprises two guide wheels and a guide wheel frame, the guide wheel frame is fixedly arranged on the upper surface of the second supportingplate, the guide wheels are rotatably installed on the guide wheel frame, and a gap allowing a cable to penetrate through is formed between the two guide wheels. When cables are laid, the cables are not easy to abrade and pull apart.

A fender hook for a boating vessel is provided. The fender hook includes a rigid core form having a leather outer covering and a sheep's wool interior lining. The fender hook is particularly designed for use with yachts having a relatively steep-pitched exterior hull wall. In further aspects, the fender hook may have a fishing rod holder or a mooring whip holder fixedly attached thereto.

A hose assembly includes a length of hose and a bracket. The bracket includes a rigid insert and a resilient overmold encapsulating at least a portion of the insert and mechanically bonding with at least a portion of an exterior of the hose. A method to produce this assembly may employ thermoplastic injection molding and include the steps of associating the rigid insert with the length of hose and overmolding the rigid insert and a section of the length of hose associated with the rigid insert with the resilient material, thereby encapsulating a portion of the insert and mechanically bonding the resilient material with the section of the length of the hose. A portion of the rigid insert may extend from the bracket and provide amounting holes and a bearing surface for mounting fasteners.

Guitar bridge pins are formed of hard materials shaped to mechanically cooperate with standard guitar bridge configurations. Either molded or machined into a prescribed shape, guitar bridge pins fit into tapered shaped holes of most common guitar bridges. Guitar bridge pins of these systems include a main body portion into which a recess seat is formed. Further a string via is arranged from the recess seat to an exit aperture, the string via provides a path through which a guitar string may pass. These guitar pins provide a high-performance system for mounting and fixing guitar strings at the bridge of a standard guitar. Specifically these bridge pin devices include at least four major integrated elements including a main body, a recess seat, a string via and a stud element. Additionally, these bridge pin systems may also include cooperating spacing and locking washers which may be used in conjunction with threaded fasteners. When fastened to a guitar bridge as prescribed, these bridge pins securely couple guitar strings there to while additionally holding together a bridge assembly including the bridge plate, sound board and bridge.

The invention relates to the technical field of saline-alkali soil nursery stock protection, and provides a saline-alkali soil tree protecting device which comprises a supporting frame and a mulching film. The supporting frame comprises at least three clamp hoops, a clamp hoop ribbon which is adjusted and fixed through a ribbon locking device is connected between every two adjacent clamp hoops, and a supporting rod is hinged to a hinging part of a clamp hoop hinging lifting lug on each clamp hoop. Each supporting rod comprises an inner supporting rod body and an outer supporting rod body connected with the inner supporting rod body in a sleeving mode, wherein a directional locking device is arranged at the upper end of the outer supporting rod body, a supporting rod base is hinged to the lower end of the outer supporting rod body, a water injecting pipe penetrates through the supporting rod base, and the output end of the water injecting pipe communicates with a water seepage and ventilation pipe network. Each base table is sleeved with a mulching film tightening clamp hoop, and a tree base is sleeved with a mulching film binding band. The supporting height and surrounding diameter of the saline-alkali soil tree protecting device can be automatically adjusted along with growth of a tree, the tree is effectively supported and protected, the breathing requirement of the root is met, watering and fertilizer and pesticide applying can be conveniently conducted on the tree, and the mulching film can be effectively protected.

The invention discloses an intelligent flexible composite constant oil pipe for underground and a manufacturing technology thereof. The intelligent flexible composite constant oil pipe for the underground replaces a traditional oil extraction method of steel oil pipes along with external applying cables, avoids the corrosion damage of a pipeline and related safety accidents on the basis of solving the problems of corrosion, scale formation and wax deposition, and meanwhile, an oil-submerged electric cable is internally arranged in a pipe body and plays a protective function on the pipe body so as to prevent the pipe body from being corroded by outside oil gas and being worn and damaged by rountrip operation. A related sensor which is internally arranged in the pipe body conducts collecting and monitoring on underground information, and back-feeds the information to a ground control system. According to the intelligent flexible composite constant oil pipe for underground and the manufacturing technology thereof, a multi-row and multi-bundle fiber dip forming technology is adopted to achieve the manufacturing technology, after resin impregnating and forming are conducted on fiber dried silk, a multi-row fiber strip with certain toughness and high strength is formed, the fiber strip is applied to various kinds of function layers, such as compressive armored and tensile armored of the pipeline, therefore the structural strength of the pipeline is improved, and meanwhile, a resin substrate further has the properties of being swelling resistant, hydrolyzing resistant, oil and gas corrosion resistant and high temperature resistant to chemical agents, and a better protection for fiber is facilitated.

The present invention provides a sealing chain, capable of preventing lubricant between a connecting pin and a sleeve from leaking as well as preventing dust from enterring, avoiding the sleeve and an outer link plate to sliding contact with each other directly, so to play excellent sealing performance for a long time and have long sealing lifetime without implementing surface thin processing to the outer link plate. The sealing mechanism (160) of the sealing chain (100) setting between the outer link plate (150) and an inner link plate (110) includes: a ring sealing piece supporting component (161), a first elastic sealing piece (162), a second elastic sealing ring (163) and a steeliness sealing ring (164).

The invention provides a double synchronizing clutch and a planetary gear coupling double-motor power system. The double synchronizing clutch comprises an inner synchronizer and an outer synchronizer which are arranged inside and outside in the radial direction, a first spline hub of the outer synchronizer and a second spline hub of the inner synchronizer are mechanically connected into a spline hub of an integrated structure, a channel is formed in the spline hub, an axial protrusion is arranged on a combining sleeve of the inner synchronizer, penetrates through the channel in the spline hub and is connected with a shifting fork ring groove of the inner synchronizer, an operation mechanism of the inner synchronizer is movably connected with the shifting fork ring groove of the inner synchronizer, an operation mechanism of the outer synchronizer is movably connected with a combining sleeve of the outer synchronizer, a combination tooth ring of the inner synchronizer is connected with a first input / output end, a combination tooth ring of the outer synchronizer is connected with a second input / output end, and the spline hub is connected with a third output / input end. The double synchronizing clutch and the planetary gear coupling double-motor power system have the stepless speed change function and the like, and have the advantage of meeting all-region and multipurpose application requirements.

The invention provides a manufacturing method of a high-conductivity and low-reflectivity metal mesh. The processing technologies of photoresist layer coating, embossing, plasma etching, metal mesh material plating and cleaning are adopted. The thickness of a photoresist layer is 20-60 microns, the photoresist layer is formed by two photoresist layer bodies with different etching rates in an overlaying mode, and the plasma etching rate of a photoresist material selected by the upper photoresist layer body is larger than the plasma etching rate of a photoresist material selected by the lower photoresist layer body. The plasma etching condition is that plasma power is 2000-3000 W, and the etching time is 2-30 minutes. The manufacturing method can be used for manufacturing the metal mesh with the width of an outgoing line being lower than 40 microns, and is suitable for manufacturing metal meshes which are made of all low resistance value metal materials such as gold, silver, copper and aluminium. In addition, the metal mesh which is manufactured by the method and is provided with a wide upper portion and a narrow lower portion has the advantages of being low in reflectivity and high in conductivity.

A radial sliding bearing provided with a sliding bearing (1), an inner ring (2), and an outer ring (3), the inner ring (2) is made of melt-cast metal and the outer ring (3) being constituted by an article molded from a resin composition, the inner ring (2) comprising a concavely curved surface (2a) on part of the axial direction of the outer circumference and a bearing hole (4) for mating with a support shaft on the inner circumference, the outer ring (3) having a convexly curved surface (3a) that contacts and slides against the concavely curved surface (2a) on the outer circumference of the inner ring (2) along part of the axial direction of the inner circumference, and the inner ring (2) and the outer ring (3) relatively rotating without contacting each other apart from the contact between the convexly curved surface and the concavely curved surface.

A hose assembly includes a length of hose and a bracket. The bracket includes a rigid insert and a resilient overmold encapsulating at least a portion of the insert and mechanically bonding with at least a portion of an exterior of the hose. A method to produce this assembly may employ thermoplastic injection molding and include the steps of associating the rigid insert with the length of hose and overmolding the rigid insert and a section of the length of hose associated with the rigid insert with the resilient material, thereby encapsulating a portion of the insert and mechanically bonding the resilient material with the section of the length of the hose. A portion of the rigid insert may extend from the bracket and provide amounting holes and a bearing surface for mounting fasteners.

Provided is a pressurized coal gasifier in which a general low head pump can be used, abrasion damage of a control valve and pump due to flushing can be prevented and maintenance cost and device cost can be reduced. Also, provided is a coal gasification combined cycle power plant that can efficiently use gas generated by the pressurized coal gasifier for power generation. In a pressurized coal gasifier for thermally processing a coal material under pressure to be gasified, the gasifier having a bottom portion thereof provided with a water tank (4) for water-granulating a slag, the water tank being connected with one end of a feed water pipe (5) and one end of a drain pipe (6), the other ends of the feed water pipe and drain pipe are connected so as to communicate with each other to form a circulating channel (7) of closed system and the circulating channel is provided with a cooler (8) and circulating pump (9) of circulating water.

Provided is a control device for a handrail drive device, configured to match a step speed and a handrail speed to each other while minimizing damage to equipment of a traction drive unit. A control device for a handrail drive device, comprising: a step speed detector (9); a handrail speed detector (18); a roller rotational speed detector (15); a speed difference comparison unit (19) for generating a speed command value for the drive unit of the handrail drive device (11) on the basis of the difference between a step speed and a handrail speed and of the difference between a roller rotational speed and the handrail speed; and a speed change device (20) for driving the electric motor of the handrail drive device (11) depending on the speed command value from the speed difference comparison unit (19). When the difference between the step speed and the handrail speed is within the range of a set value and the difference between the handrail speed and the roller rotational speed is within the range of a set value, the control device generates a handrail speed command value obtained by correcting the difference between the handrail speed and the roller rotational speed with reference to the step speed.

The invention discloses a device for monitoring the abrasion amount of a mill lining plate in real time. The device includes a monitoring assembly, an information interaction assembly and a control mechanism; the monitoring assembly is provided with a detection bolt, one end of the detection bolt penetrates through a mill cylinder body and the mill lining plate in sequence and is flush with the inner edge of the mill lining plate, and the other end of the detection bolt extends outside the mill cylinder body; and the inner part of the detection bolt is of a hollow structure, and a sensor probeis fixed to the hollow structure part through an insulating castable in a sealing mode. According to the device for monitoring the abrasion amount of the mill lining plate in real time, the abrasionamount of the mill lining plate can be effectively and accurately monitored in real time without stopping a mill, so that the effective utilization of the mill lining plate is improved, and the mill production efficiency is improved.

The invention discloses a screw feeder for underwater coarse mineral particles. The screw feeder for the underwater coarse mineral particles comprises a cylinder and a rotary shaft. The rotary shaft is arranged in the cylinder and provided with screw blades. The two ends of the rotary shaft are pivoted to the cylinder. A feed port and a discharge port are formed in the outer walls of the two endsof the cylinder. The ends, close to the feed port and the discharge port, of the rotary shaft are each sleeved with an annular partition plate. The edges of the annular partition plates extend to positions near the inner wall of the cylinder. According to the screw feeder for the underwater coarse mineral particles, the internal pressure and the external pressure of the screw feeder can be kept balanced, so that uniform conveying of materials is achieved; meanwhile, the service life of the whole screw feeder is prolonged through the multiple sealing technique; and in addition, the adaptabilityof the feeder is improved through the replaceable screw blades.

The invention provides a cable release and obstacle crossing construction device, comprising a cable pay-off stand, a cable reel, a cable, a cable release machine, a casing, a steel wire rope, and a winching machine, wherein the cable release device is matched with the winching machine, so that the release of the cable is matched with the laying construction of the cable crossing the bottom of an obstacle, and an auxiliary device is provided in the process that the cable crosses the casing, so that the cable is protected in the process that the cable crosses the casing at the bottom of the obstacle, the traction resistance borne by the cable is reduced, and the wear and tear of a protective covering of the cable are reduced. The construction device provided by the invention is simple to operate in cable laying construction, the cable release and crossing traction are simultaneously realized, the impact of the laying distance of the cable crossing the bottom of the obstacle on the construction can be effectively avoided, the cost is reduced, and the range of application is wide.

The method of centralizing a rotating string within the bore of a subsea blowout preventer stack and a drilling riser comprising providing a multiplicity of rollers having a first position and a second position, when the rollers are in the first position the rollers defining a first circle which is proximately the size of the bore of the drilling riser, when the rollers are in the second position the rollers defining a second circle which is smaller than the first circle, and when the rollers are in the second position the rollers prevent the rotating string from contacting the bore of the subsea blowout preventer stack or the drilling riser proximate the rollers.

The invention provides an integrally structured motor and controller assembly. The integrally structured motor and controller assembly includes a motor shell. The rear end of the motor shell is open, and a cylindrical first cavity is formed in the rear end of the motor shell. A stator, a rotor and a motor shaft are installed in the first cavity. A plurality of first threaded holes and a plurality of second threaded holes are formed in the motor shell in the circumferential direction. The integrally structured motor and controller assembly is concise and compact in structure; a motor part and a controller part are next to each other, so that the usage number of cables and the usage number of plug-in connectors are reduced; accordingly, the production cost is reduced, and production efficiency is enhanced; furthermore, as the cables are free of exposed parts basically, the situation that the exposed parts of the cables make contact with a compartment, so that the exposed parts of the cables are abraded, damaged and corroded by rainwater is avoided, and the failure rate is lowered; due to the integrated structure, the assembly can be returned to a manufacturer for repairing in a unified mode when the motor or the controller has a failure, the situation of returning by mistake will not occur, and then the after cost of the manufacturer is also greatly lowered.