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34results about How to "Small corner" patented technology

Steering redundancy and integrated control system and method of four-wheel independent driving electric automobile

The invention relates to a steering redundancy and integrated control system and method of a four-wheel independent driving electric automobile. The control method comprises the steps that a differential action power reference curve is determined by an automobile controller according to the steering wheel hand power demands of a driver; an electric power steering module obtains a power torque command according to the measured steering wheel rotating angle data and sends the power torque command to an EPS (Electronic Power Steering, electronic power steering system); a differential action powersteering module utilizes the differential action power reference curve to obtain a front axle differential action torque of the electric automobile according to the measured data; a reference yaw angle velocity is obtained according to the measured automobile practical yaw angle velocity, the steering wheel rotating angle and the automobile speed data, and accordingly the additive yawing moment is obtained; and the automobile controller utilizes the front axle differential action torque and the additive yawing moment to obtain a four-wheel driving motor target output torque. Compared with theprior art, the steering redundancy and integrated control system and method have the advantages that the individualized demands of the driver can be met, the driving safety of the automobile is improved, and the manipulation burden of the driver is relieved.
Owner:TONGJI UNIV

Offshore wind power multi-pile bearing platform composite foundation and construction method

The invention provides an offshore wind power multi-pile bearing platform composite foundation. The offshore wind power multi-pile bearing platform composite foundation comprises a bucket foundation and multiple steel pipe piles. The bucket foundation comprises an upper-layer bucket body with an opening in the upper portion and a lower-layer bucket body with an opening in the lower portion. The upper-layer bucket body and the lower-layer bucket body are separated by a separation plate. Multiple connecting sleeve parts are arranged on the separation plate. Each steel pipe pile sequentially penetrates the corresponding connecting sleeve part and the separation plate to be inserted into a seabed. The steel pipe piles and the connecting sleeve parts are in grouting connection. Concrete is poured into the upper-layer bucket body. A tower tube connecting segment is further arranged in the upper-layer bucket body. The invention further provides a construction method based on the offshore wind power multi-pile bearing platform composite foundation. The offshore wind power multi-pile bearing platform composite foundation is simple in structure and novel in design and is provided with the upper-layer bucket body with the opening in the upper portion and the lower-layer bucket body with the opening in the lower portion. The concrete is arranged in the upper-layer bucket body to serve as a bearing platform, the lower-layer bucket body is sunk below the seabed, corners on the foundation soil face are reduced, and the horizontal bearing performance of the foundation is further improved.
Owner:CCCC THIRD HARBOR ENG +2

Vehicle steering device

The vehicle is structured so that a steering shaft 12 is installed rotatably on a body frame, a tie rod and a knuckle arm are installed in the lower part of the steering shaft 12 through a steering arm 66, and wheels are mounted on the knuckle arm rotatably, wherein the steering shaft 12 is divided into a plurality of shaft sections (an upper shaft 71, a middle shaft 73, and a lower shaft 75), which are coupled together by hook type joints (a first hook joint 72 and a second hook joint 74).
Owner:HONDA MOTOR CO LTD

Full-automatic deceleration clutch and washing machine thereof

A wholly automatic decelerating clutch and a washing machine thereof pertain to washing machine technical field; an output shaft of the wholly automatic decelerating clutch consists of a small whirlpool agitator shaft, a large whirlpool agitator shaft and a dewatering shaft that are sleeved concentrically; the whirlpool agitator of the washing machine adopting the wholly automatic decelerating clutch is a small whirlpool agitator and a large whirlpool agitator, wherein the small whirlpool agitator is fixedly arranged on the small whirlpool agitator shaft and in the center part of the large whirlpool agitator, and the large whirlpool agitator is fixedly arranged on the large whirlpool agitator shaft, and an inner bucket is fixedly arranged on the dewatering shaft. The washing manner of the washing machine adopting the wholly automatic decelerating clutch is that: the small whirlpool agitator, the large whirlpool agitator and the inner bucket are mutually, reversely and bidirectionally rotated to and fro at a certain ratio, different speeds and different rotating angles, to produce complicated, vertically and horizontally crossed impacting water flow, to strike and rinse clothes, and fully roll, strongly rub and sway the clothes, thus improving the cleanness rate of clothes and not twisting the clothes; when the clothes are dewatered, a torsional spring automatically integrates the decelerating clutch into a whole, and decenters and dewater the clothes in high speed, without needing a whole set of clutch parts and operating mechanisms of the normal decelerating clutch.
Owner:NINGGUO JULONG IND

Offshore single pile foundation with compacted grouting reinforcement foundation

The invention relates to an offshore single pile foundation with a compacted grouting reinforcement foundation in the pile foundation field of ocean engineering. According to the technical scheme, a steel pipe pile is sunk to a seabed, the seabed is a soft soil foundation, in the soft soil foundation, a reinforced foundation with compacted grouting technology is arranged on the periphery of the steel pipe pile, and the reinforced foundation includes a compacted grouting bubble, a drainage channel and soft soil between the compacted grouting bubble and the drainage channel; and the reinforced foundation is a rotating body coaxial with the steel pipe pile. The offshore single pile foundation has high horizontal bearing capacity, small pile top horizontal displacement, small pile body inclination and large foundation stiffness, adapts to the characteristics of large horizontal load of an offshore wind turbine, meets the strict requirements of the offshore wind turbine on foundation horizontal displacement and pile body inclination, and meets the requirements of 'structure + foundation' integral natural vibration frequency.
Owner:SHANGHAI INVESTIGATION DESIGN & RES INST

Offshore single pile foundation with high pressure jet grouting pile reinforced foundation

The invention discloses an offshore single pile foundation with a high pressure jet grouting pile reinforced foundation, and belongs to the field of pile foundations of ocean engineering. According tothe technical scheme, the offshore single pile foundation includes a steel pipe pile sunk into a seabed soft soil foundation, in the soft soil foundation, the reinforced foundation formed by a high pressure jet grouting method is arranged on the periphery of the steel pipe pile, and the reinforced foundation is a rotating body coaxial with the steel pipe pile; the reinforced foundation includes high pressure jet grouting piles and soft soil between the high pressure jet grouting piles; the inner ring high pressure jet grouting piles in the reinforced foundation are arranged to form an inner ring high pressure jet grouting pile wall body; and the inner ring high pressure jet grouting pile wall body is in contact with a pile body of the steel pipe pile. According to the offshore single pilefoundation, the horizontal bearing capacity is high, the horizontal displacement of the pile top is small, the pile body inclination is small, the foundation stiffness is large, the offshore single pile foundation adapts to the characteristics of large horizontal load of an offshore wind turbine, the strict requirements of the offshore wind turbine on foundation horizontal displacement and pile body inclination are met, and the requirements of the 'structure and foundation' integral natural vibration frequency are met.
Owner:SHANGHAI INVESTIGATION DESIGN & RES INST

Active headrest with hinge structure

The invention relates to an active headrest with a hinge structure, which comprises a front cover of the headrest and a rear cover of the headrest. The middle upper part of the front cover of the headrest and the rear cover of the headrest is equipped with a hinge ejection system; A pole fixing and activating system is provided under the ejection system; a rack locking system is provided between the hinge ejection system and the pole fixing and activating system; the pole fixing and activating system is composed of a pole and a cable; The cable is located between the seat back and the hinge ejection system; the strut is fixed on the seat frame; the rack locking system is composed of a fixed rack and a movable rack; the The headrest front cover is made of energy-absorbing material. The invention makes it possible for the active headrest to instantly rise and tilt forward in order to protect the head when the passenger car collides, and the distance between the occupant's head and the headrest is reduced at the moment of collision, thereby greatly reducing the The turning angle of the head of the small occupant reduces or eliminates whiplash on the occupant's neck.
Owner:NINGBO JIFENG AUTO PARTS

Marine single pile foundation with sand pile reinforcement foundation

The invention relates to a marine single pile foundation with a sand pile reinforcement foundation, and belongs to the field of pile foundations of ocean engineering. The technical scheme adopted by the invention is that a steel pipe pile is sunken in a seabed, the seabed is a soft soil foundation, a reinforcement foundation with a sand pile process is arranged in a local area of the soft soil foundation, and the steel pipe pile is inserted in and penetrates through the reinforcement foundation and is sunken in the soft soil foundation; the reinforcement foundation comprises sand piles and soft soil among the sand piles; the sand piles are uniformly arranged at intervals; and the center longitudinal axis of the reinforcement foundation is consistent with that of the steel pipe pile. Each sand pile comprises a compaction sand pile. With the characteristics of high horizontal bearing capacity, small horizontal displacement of a pile top, small inclination angle of a pile body, high foundation stiffness, and adaption to large horizontal load of an offshore wind turbine, the marine single pile foundation meets the strict requirements of the offshore wind turbine on the foundation horizontal displacement and the pile body inclination angle, and meets the requirement of 'structure+foundation" overall natural vibration frequency.
Owner:SHANGHAI INVESTIGATION DESIGN & RES INST

Spiral double-rocker composite hinge groove cam combination space mechanism for sliding-plug door

ActiveCN102305005BThe plug seal of the plug door is reliableSierra seal is reliablePower-operated mechanismDoor arrangementEngineeringCam
The invention discloses a spiral double-rocker composite hinge groove cam combination space mechanism for a sliding-plug door, and relates to a sliding and plug, sealing, opening and closing mechanism for the sliding-plug door of a vehicle, in particular to a spiral double-rocker composite hinge groove cam combination space mechanism for the sliding-plug door of high-speed rail or other railway vehicles. The mechanism comprises a motor, a coupler, a screw, a bearing shaft, a shaft sleeve, a nut, a short rocker, a door carrying rocker (a rocker for short), a connection rod, a door handle, a roller, a roller shaft, a groove cam, a door leaf and a door frame, wherein a spiral mechanism consists of the screw, the nut and the door frame; a double-rocker mechanism consists of the bearing shaft, the shaft sleeve, the short rocker, the rocker, and the connection rod; a groove cam mechanism consists of the bearing shaft, the rocker, the roller, the roller shaft, the groove cam, the door handle, the door leaf, and the door frame; a rotation pair consists of the upper end of the connection rod and the short rocker; a composite hinge consists of the lower end of the connection rod, the rocker and the door handle; and the spiral mechanism, the double-rocker mechanism and the groove cam mechanism are connected to form the spiral double-rocker composite hinge groove cam combination space mechanism.
Owner:HAIMEN BIWEI INTPROP SERVICE CO LTD

Full-automatic deceleration clutch and washing machine thereof

A wholly automatic decelerating clutch and a washing machine thereof pertain to washing machine technical field; an output shaft of the wholly automatic decelerating clutch consists of a small whirlpool agitator shaft, a large whirlpool agitator shaft and a dewatering shaft that are sleeved concentrically; the whirlpool agitator of the washing machine adopting the wholly automatic decelerating clutch is a small whirlpool agitator and a large whirlpool agitator, wherein the small whirlpool agitator is fixedly arranged on the small whirlpool agitator shaft and in the center part of the large whirlpool agitator, and the large whirlpool agitator is fixedly arranged on the large whirlpool agitator shaft, and an inner bucket is fixedly arranged on the dewatering shaft. The washing manner of thewashing machine adopting the wholly automatic decelerating clutch is that: the small whirlpool agitator, the large whirlpool agitator and the inner bucket are mutually, reversely and bidirectionally rotated to and fro at a certain ratio, different speeds and different rotating angles, to produce complicated, vertically and horizontally crossed impacting water flow, to strike and rinse clothes, and fully roll, strongly rub and sway the clothes, thus improving the cleanness rate of clothes and not twisting the clothes; when the clothes are dewatered, a torsional spring automatically integrates the decelerating clutch into a whole, and decenters and dewater the clothes in high speed, without needing a whole set of clutch parts and operating mechanisms of the normal decelerating clutch.
Owner:NINGGUO JULONG IND

In-service rigid hanger load measurement method

ActiveCN110307922ASolve the problem that the load cannot be obtainedReduce windMachine part testingForce measurementPull forceEngineering
The invention relates to the technical field of pipeline hangers, in particular to an in-service rigid hanger load measurement method. The method comprises the following steps: the hanging rod of therigid hanger is simplified to simply supported beams at two ends; assuming the axial tension borne by the hanging rod is T0, a transverse shear force F is applied to the midpoint of the hanging rod, the hanging rod is bent and deformed under the joint action of the T0 and the F, the deflection curve equation of the hanging rod after deformation is represented by w(x), the deflection of any point on the hanging rod is obtained, the deflection corresponding to the midpoint of the hanging rod is obtained, the influences of the axial tension T0 on bending and deformation of the hanging rod are quantized, a corresponding influence factor is deduced, the axial tension T0 of the hanging rod is deduced backwardly through measuring the transverse shear force F and the deflection at the action point, and the T0 is the rigid hanger load which needs to be measured. The method is simple and easy to operate, the measurement precision is high enough, in-service measurement can be realized, and the pipeline is not influenced during the measurement process.
Owner:SUZHOU NUCLEAR POWER RES INST +2

Rapid contrast adjusting structure and projector

InactiveCN104317147AContrast adjustment is quickFast adjustmentProjectorsDrive shaftEngineering
The invention discloses a rapid contrast adjusting mechanism. The rapid contrast adjusting mechanism comprises a base plate, a first light blocking sheet and a second light blocking sheet. The base plate is provided with three base plate axle holes in the same straight line. A crescent base plate limiting groove is formed between every two adjacent base plate shaft holes. A transmission shaft of a transmission gear penetrates through the base plate axle hole in the middle and then is connected with one end of a compression spring, and the other end of the compression spring is connected with a control frame. The transmission gear is connected with a motor. A light blocking sheet center shaft and a light blocking sheet limiting shaft are arranged at the lower portion of the first light blocking sheet, a light blocking sheet center shaft and a light blocking sheet limiting shaft are arranged at the lower portion of the second light blocking sheet, the light blocking sheet center shafts penetrate through the base plate axle holes in the edges respectively, the light blocking sheet limiting shafts penetrate through the base plate limiting grooves, the two light blocking sheet center shafts are connected with a second return spring and a third return spring respectively after penetrating through the base plate, and the other end of the second return spring and the other end of the third return spring are fixed to the base plate.
Owner:深圳市安曼特微显示科技有限公司

Pneumatic hydraulic jack

The invention discloses a pneumatic hydraulic jack which comprises a jacking oil cylinder, an oil tank, a transiting plate and a pneumatic booster, wherein the oil tank is connected with the jacking oil cylinder through an oil supply channel on the transiting plate and is used for pumping hydraulic oil into the jacking oil cylinder through the pneumatic booster connected with the oil supply channel; an oil passing interface, a first one-way valve, a plunger pump interface and a second one-way valve are arranged in the oil supply channel; the oil passing interface, the first one-way valve and the plunger pump interface are communicated with each other in turn; the second one-way valve is communicated with the jacking oil cylinder; the second one-way valve is vertically arranged and is in a same axis with the plunger pump interface; the first one-way valve is arranged in the oil supply channel between the plunger pump interface and the second one-way valve; a third one-way valve is arranged in an oil return channel; the jacking oil cylinder is communicated with one end of the third one-way valve; the oil passing interface is communicated with the other end of the third one-way valve; and a pressure-relieving component for controlling the switch-on / off of the third one-way valve is arranged in the transiting plate. The pneumatic hydraulic jack provided by the invention has the advantages that the structure is simple, the oil-way corner is few, the friction of hydraulic oil is reduced, the temperature rise and pressure loss of the hydraulic oil are reduced and the jacking tonnage of the jack is increased.
Owner:衡阳市锦泰工具有限公司

Novel digital servo hydraulic cylinder

A novel digital servo hydraulic cylinder comprises a cylinder barrel and an upper cover. The upper cover is arranged at the upper end of the cylinder barrel, the cylinder barrel is placed on the leftside of a piston rod, the left side of the piston rod is provided with an arch-shaped oil return valve, a triangular spiral oil passing groove is formed in the oil cylinder inner wall at the lower endof the arch-shaped oil return valve, an oil return valve is arranged in the center position of the lower portion of the triangular spiral oil passing groove and disposed on a plunger, and a base plate is arranged at the lower end of the plunger. The novel digital servo hydraulic cylinder has the advantages of good structural machinability, small rotation angle, continuous control, quick response,good speed stability, high precision, great simplification of structure, and improvement on anti-pollution capacity of oil, and thus the structure of the novel digital servo hydraulic cylinder has advancement, reasonability and practicability, and development potential is great.
Owner:沈佩军

Special cable for intelligent monitoring of rail transit and production process thereof

The invention discloses a special cable for intelligent monitoring of rail transit and a production process thereof. The structure of the cable comprises a cable core, a metal shielding layer, an inner sheath, a flame-retardant belt, a metal armor layer, a wrapping belt and an outer sheath which are sequentially arranged from the inside to the outside. The metal shielding layer comprises two layers of semi-conductive wrapping tapes, and detection optical fibers, shielding copper wires and semi-conductive fillers which are arranged between the semi-conductive wrapping tapes and are distributedcircumferentially; the detection optical fibers and the shielding copper wires are uniformly distributed along the periphery of the cable core. The semi-conductive fillers are distributed between theadjacent detection optical fibers and shielding copper wires and between the adjacent shielding copper wires; and the outer diameters of the shielding copper wires and the semi-conductive fillers aregreater than the outer diameter of the detection optical fibers. According to the invention, optical fibers implanted into the cable can be effectively prevented from being damaged, and the cost of the cable can be reduced.
Owner:FAR EAST CABLE +2

Wedge block type one-way clutch

The invention relates to a wedge-block type one-way clutch. The surface of a star wheel inner hole is a smooth cylindrical face. A drive gear in a drive gear assembly is arranged in the star wheel inner hole, and the peripheral surface of the drive gear is a smooth cylindrical face. A plurality of wedge blocks are arranged between the star wheel inner hole and the periphery of the drive gear, and the multiple wedge blocks are tightly arranged to form a circle in a surrounding manner in the circumferential direction. Each wedge block is provided with a slotted groove with an opening located in the outer end of the wedge block. The bottom faces of the slotted grooves are inclining faces, and the inclining directions of the bottom faces of the slotted grooves of all the wedge blocks are the same. Elastic rings are embedded in the slotted grooves of the wedge blocks forming one circle in the surrounding manner and have inward tightening force for the wedge blocks forming one circle in the surrounding manner. Under the action of the tightening force of the elastic rings, the outer ends of the wedge blocks conduct wedge-caulking on the surface of the star wheel inner hole, and the inner ends of the wedge blocks conduct wedge-caulking on the surface of the periphery of the drive gear. The wedge-block type one-way clutch is compact in structure, ingenious in design, small in size, small in weight, large in transmission power and high in machining precision, and the one-way clutch can have more stable work performance, higher reliability and longer service life.
Owner:无锡市神力齿轮冷挤有限公司

Pneumatic hydraulic jack

The invention discloses a pneumatic hydraulic jack which comprises a jacking oil cylinder, an oil tank, a transiting plate and a pneumatic booster, wherein the oil tank is connected with the jacking oil cylinder through an oil supply channel on the transiting plate and is used for pumping hydraulic oil into the jacking oil cylinder through the pneumatic booster connected with the oil supply channel; an oil passing interface, a first one-way valve, a plunger pump interface and a second one-way valve are arranged in the oil supply channel; the oil passing interface, the first one-way valve and the plunger pump interface are communicated with each other in turn; the second one-way valve is communicated with the jacking oil cylinder; the second one-way valve is vertically arranged and is in a same axis with the plunger pump interface; the first one-way valve is arranged in the oil supply channel between the plunger pump interface and the second one-way valve; a third one-way valve is arranged in an oil return channel; the jacking oil cylinder is communicated with one end of the third one-way valve; the oil passing interface is communicated with the other end of the third one-way valve; and a pressure-relieving component for controlling the switch-on / off of the third one-way valve is arranged in the transiting plate. The pneumatic hydraulic jack provided by the invention has the advantages that the structure is simple, the oil-way corner is few, the friction of hydraulic oil is reduced, the temperature rise and pressure loss of the hydraulic oil are reduced and the jacking tonnage of the jack is increased.
Owner:衡阳市锦泰工具有限公司

Unmanned driving emergency obstacle avoidance path tracking method

The invention provides an unmanned driving emergency obstacle avoidance path tracking method. The method comprises the following steps: acquiring driving state information and position information of a vehicle and surrounding environment information of the vehicle; determining an obstacle avoidance strategy according to the road curvature, the collision time of the vehicle and the front vehicle, and the obstacle avoidance area and the constraint condition of the adjacent lane; when the obstacle avoidance strategy is an emergency steering mode, an optimal obstacle avoidance path is planned according to the vehicle driving state information, the position information and the vehicle surrounding environment information; predicting wheel rotation angles and wheel rotation speeds of front wheels and rear wheels corresponding to vehicle positions at different moments on the optimal obstacle avoidance path; and controlling the vehicle to track the optimal obstacle avoidance path to run according to the calculated wheel rotation angle and wheel rotation speed of each wheel of the vehicle. Under the high-speed limit working condition, various obstacle avoidance strategies are combined, active four-wheel steering path tracking is adopted, and the operation stability and safety at the high speed can be improved.
Owner:VOYAH AUTOMOBILE TECH CO LTD

sprag type one-way clutch

The invention relates to a wedge-block type one-way clutch. The surface of a star wheel inner hole is a smooth cylindrical face. A drive gear in a drive gear assembly is arranged in the star wheel inner hole, and the peripheral surface of the drive gear is a smooth cylindrical face. A plurality of wedge blocks are arranged between the star wheel inner hole and the periphery of the drive gear, and the multiple wedge blocks are tightly arranged to form a circle in a surrounding manner in the circumferential direction. Each wedge block is provided with a slotted groove with an opening located in the outer end of the wedge block. The bottom faces of the slotted grooves are inclining faces, and the inclining directions of the bottom faces of the slotted grooves of all the wedge blocks are the same. Elastic rings are embedded in the slotted grooves of the wedge blocks forming one circle in the surrounding manner and have inward tightening force for the wedge blocks forming one circle in the surrounding manner. Under the action of the tightening force of the elastic rings, the outer ends of the wedge blocks conduct wedge-caulking on the surface of the star wheel inner hole, and the inner ends of the wedge blocks conduct wedge-caulking on the surface of the periphery of the drive gear. The wedge-block type one-way clutch is compact in structure, ingenious in design, small in size, small in weight, large in transmission power and high in machining precision, and the one-way clutch can have more stable work performance, higher reliability and longer service life.
Owner:无锡市神力齿轮冷挤有限公司

A wide-format high-speed wood grain paper printing machine

The invention relates to a wide-width high-speed printing machine for woodgrained paper. The machine comprises an uncoiling unit, an uncoiling traction system, a plurality of printing units, a coiling traction mechanism and a coiling unit which are sequentially arranged based on the process; each printing unit comprises a printing body; a drying structure is arranged at a subsequent station of each printing body, comprising a bullet-shaped supporting frame, wherein the bullet-shaped supporting frame is composed of two arc-shaped surfaces; a plurality of positioning guide rollers for fixing paper tapes are arranged on the outer surfaces of the supporting frames; an air box which is in a shape matched with the arc shape of the outer surface of each supporting frame 33 is arranged at the outside of the outer surface of each supporting frame. According to the machine, a paper coil is supported by hydraulic propping and a variable width discharging and coiling mechanism is utilized for coiling and uncoiling; the width ranges from 1,210 to 2,150mm; compared with the traditional expansion shaft chuck, the machine has the advantages that the labor intensity in material replacement is reduced, the time of material replacement can be decreased, and the production can be performed at a high speed.
Owner:SOTECH SMARTER EQUIP CO LTD

Cleaning device and cleaning robot

The embodiment of the invention discloses a cleaning device and a cleaning robot. The cleaning device comprises a recycling device, a spraying washing device, an adjusting device and a limiting device; the recycling device is connected to the work face in a sealed manner; the spraying washing device is installed on the inner side of the recycling device; the adjusting device is movably connected with the recycling device through an adjusting connection piece; the recycling device can perform the rotational movement around the adjusting connection piece relative to the adjusting device; and thelimiting device is installed on the outer side of the recycling device, and used for controlling the movement amplitude of the recycling device. According to the cleaning device and the cleaning robot, due to the fact that the limiting device is arranged on the cleaning device, the movement amplitude of the control device can be effectively controlled, and then the safety of the cleaning device is guaranteed.
Owner:BEIJING SHIHE TECH CO LTD

Construction method of fan foundation, fan foundation and wind generating set

PendingCN114059577AGuaranteed to meet the position requirementsGuaranteed Connection RequirementsWind motor supports/mountsFoundation engineeringArchitectural engineeringTurbine
The invention relates to a construction method of a fan foundation, the fan foundation and a wind generating set, the construction method comprises a reinforcing assembly providing step, a pretreatment step, a penetration step and a grouting step, and the provided reinforcing assembly comprises an adapter and more than two reinforcing cylinders. In the pretreatment step, a reinforcing assembly can be matched with a main supporting piece through an adapting piece, when the penetration step is executed, the reinforcing assembly can penetrate into a preset depth in a mud layer in the height direction of the main supporting piece through the adapting piece and is fixedly connected with the main supporting piece, and through the correspondingly arranged grouting step, a reinforcing barrel is in close contact with a mud layer. The reinforcing barrels of the reinforcing assembly and the main supporting piece can form a whole and jointly act, the overall rigidity of the wind turbine foundation is improved, the overall horizontal bearing capacity of the wind turbine foundation is improved, the corner of the main supporting piece on the surface of a mud layer is reduced, and the safety requirement of the wind turbine foundation is better met.
Owner:JIANGSU GOLDWIND SCI & TECH CO LTD

A Fast Contrast Adjustment Structure and Projector

InactiveCN104317147BContrast adjustment is quickFast adjustmentProjectorsDrive shaftEngineering
The invention discloses a rapid contrast adjusting mechanism. The rapid contrast adjusting mechanism comprises a base plate, a first light blocking sheet and a second light blocking sheet. The base plate is provided with three base plate axle holes in the same straight line. A crescent base plate limiting groove is formed between every two adjacent base plate shaft holes. A transmission shaft of a transmission gear penetrates through the base plate axle hole in the middle and then is connected with one end of a compression spring, and the other end of the compression spring is connected with a control frame. The transmission gear is connected with a motor. A light blocking sheet center shaft and a light blocking sheet limiting shaft are arranged at the lower portion of the first light blocking sheet, a light blocking sheet center shaft and a light blocking sheet limiting shaft are arranged at the lower portion of the second light blocking sheet, the light blocking sheet center shafts penetrate through the base plate axle holes in the edges respectively, the light blocking sheet limiting shafts penetrate through the base plate limiting grooves, the two light blocking sheet center shafts are connected with a second return spring and a third return spring respectively after penetrating through the base plate, and the other end of the second return spring and the other end of the third return spring are fixed to the base plate.
Owner:深圳市安曼特微显示科技有限公司

Double-wishbone suspension

The invention relates to the technical field of automobile suspensions, and discloses a double-fork-arm suspension which comprises a steering knuckle, a first fork arm, a second fork arm and a linkage assembly. The first fork arm comprises a first fork arm body and a first connecting part arranged on the first fork arm body, and one end of the first fork arm body is connected with the upper end of the steering knuckle; the second fork arm comprises a second fork arm body and a second connecting part arranged on the second fork arm body, the second connecting part corresponds to the first connecting part, and one end of the second fork arm body is connected with the lower end of the steering knuckle; one end of the linkage assembly is connected with the first connecting part, and the other end of the linkage assembly is connected with the second connecting part. According to the invention, the rigidity of the suspension in the X-axis direction is reduced without reducing or even improving the backward tilting towing torque rigidity, so that the performance of the whole vehicle is improved, and the linear braking stability and the curve braking safety are ensured.
Owner:GUANGZHOU AUTOMOBILE GROUP CO LTD

A Method of Measuring the Load of Rigid Hanger in Service

ActiveCN110307922BSolve the problem that the load cannot be obtainedReduce windMachine part testingForce measurementPull forceClassical mechanics
The invention relates to the technical field of pipeline hangers, in particular to an in-service rigid hanger load measurement method. The method comprises the following steps: the hanging rod of therigid hanger is simplified to simply supported beams at two ends; assuming the axial tension borne by the hanging rod is T0, a transverse shear force F is applied to the midpoint of the hanging rod, the hanging rod is bent and deformed under the joint action of the T0 and the F, the deflection curve equation of the hanging rod after deformation is represented by w(x), the deflection of any point on the hanging rod is obtained, the deflection corresponding to the midpoint of the hanging rod is obtained, the influences of the axial tension T0 on bending and deformation of the hanging rod are quantized, a corresponding influence factor is deduced, the axial tension T0 of the hanging rod is deduced backwardly through measuring the transverse shear force F and the deflection at the action point, and the T0 is the rigid hanger load which needs to be measured. The method is simple and easy to operate, the measurement precision is high enough, in-service measurement can be realized, and the pipeline is not influenced during the measurement process.
Owner:SUZHOU NUCLEAR POWER RES INST +2

Intelligent rail vehicle base

The invention belongs to the technical field of intelligent rail transportation, and provides an intelligent rail vehicle base which includes a garage, a first main track rail, a second main track rail, and an entry and exit track rail. The garage is built on a construction site, and the garage includes a first side wall, a second side wall, a third side wall and a fourth side wall which are sequentially connected end to end to form a parallelogram. The first main track rail is set on the field outside the first side wall, the second main track rail is set on the field outside the third side wall, the entry and exit track rail is set in the garage, the first end of the entry and exit track rail obliquely penetrates out through the first side wall and is connected to the first main track rail through a first connecting track rail, and the second end of the entry and exit track rail penetrates out through the third side wall and is connected to the second main track rail through a secondconnecting track rail, wherein the entry and exit track rail is parallel to the second side wall or the fourth side wall. The intelligent rail vehicle base occupies a small area, can be adapted to beconstructed on a narrow and irregular plot, and meets the construction requirements in different situations.
Owner:中铁四院集团新型轨道交通设计研究有限公司 +1
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