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554 results about "Structural principle" patented technology

Structural principles - Forces. In any building design, the strength and stability of an overall building and its individual components must be considered. This involves structural calculations to work out the effects of all the forces acting on any component in the building and on the building overall.

Rubber diaphragm antifatigue test device

The invention relates to a fatigue resistance testing device for a rubber membrane. A reciprocating transmission mechanism adopts a double-eccenter connecting rod type structure and is positioned on the top of the device; the top end of a reciprocating rod is connected with a counter; the reciprocating transmission mechanism is in driving communication with a motor arranged on the right top of the device; the bottom end of the reciprocating rod is in mechanical connection with a membrane clamping mechanism; the bottom of the center of the clamping mechanism is provided with a balancing spring; the right end of the membrane clamping mechanism is communicated with an air pressure pump through a valve; the middle part of an air inlet pipe is connected in series with an air pressure sensor and an air pressure meter; the middle part of the reciprocating rod is provided with a fixing piece; the upper part and the lower part of the reciprocating rod are provided with a sliding sleeve respectively; and the sliding sleeve restricts the moving direction of the reciprocating rod. The fatigue resistance testing device has the advantages of simple structural principle, large testing range, high efficiency, convenient operation and use, safe and reliable operation and good automation degree.
Owner:QINGDAO UNIV

Two-dimensional large-diameter transmission-type quick reflecting mirror

The invention relates to a two-dimensional large-diameter transmission-type quick reflecting mirror, which comprises a support base, a mirror body support plate, a beam combiner, mirror body briquettes, three driver assemblies and three flexible hinges. The two-dimensional large-diameter transmission-type quick reflecting mirror achieves vertical changing of a driving direction of a piezoelectric ceramic driver through an elliptical elastic outer frame; compared with the direct driving mode of piezoelectric ceramics, the shear resistance of the driver is improved greatly; in addition, a stroke of the driver is amplified by 2-4 times; center transmission of the quick reflecting mirror is achieved by the three-point dispersing flexible support; the quick reflecting mirror can be applied to precise beam combining and alignment of laser lights with different wave bands at a structure principle level; and as the beam combiner can translate along a Z axis, the quick reflecting mirror can adjust a light beam deviation position. As a resistance-type strain gauge is adopted to indirectly measure a deflection angle of the beam combiner, the quick reflecting mirror is simple in structure and convenient to realize; and the miniaturization of the two-dimensional large-diameter transmission-type quick reflecting mirror is facilitated.
Owner:CHANGCHUN INST OF OPTICS FINE MECHANICS & PHYSICS CHINESE ACAD OF SCI

Vehicle semi-active suspension hybrid control method based on damping multi-mode switching vibration damper

The invention proposes a vehicle semi-active suspension hybrid control method based on a damping multi-mode switching vibration damper, and the method comprises the steps: (1), building a damping nonlinear characteristic mathematical model of a vibration damper according to the structural principle of the damping multi-mode switching vibration damper; (2), carrying out the simulation analysis of the damping nonlinear characteristic mathematical model of the vibration damper, obtaining the speed characteristic curve of the vibration damper, and determining the restoration damping coefficient and compression damping coefficient of the vibration damper in each damping working mode; (3), building a vehicle semi-active suspension hybrid dynamic model comprising the damping multi-mode switching vibration damper based on a hybrid logic dynamic modeling method; (4), combing with the requirements of suspension system control, and completing the design of a vehicle semi-active suspension hybrid model prediction controller. Compared with the prior art, the method can achieve the effective control of a vehicle semi-active suspension comprising the damping multi-mode switching vibration damper, improves the actual control performance of a vehicle semi-active suspension system, is lower in implementation cost of a control strategy, is strong in actual application capability, and is remarkable in advantages.
Owner:采埃孚汽车零部件系统(上海)有限公司

Pole-climbing robot

The invention relates to a pole-climbing robot, and belongs to the field of engineering application. The pole-climbing robot is characterized in that: a support plate is connected with a back plate through holes III in the back plate; a support rod is matched with the support plate through holes II in the front end of the support plate; an upper clamping hand I is connected with an upper sliding block I; an upper clamping hand II is connected with an upper sliding block II; the upper sliding block I is connected with an upper connecting rod I; the upper sliding block II is connected with an upper connecting rod II; the upper clamping hand I is connected with the upper clamping hand II through a spring II; the upper connecting rod I and the upper connecting rod II are connected with a short connecting rod; the short connecting rod is connected with a long connecting rod, and is matched with a rotating disk; the rotating disk is matched with a motor; the long connecting rod is connected with a lower connecting rod I and a lower connecting rod II; the lower connecting rod I is connected with a lower sliding block I; the lower connecting rod II is connected with a lower sliding block II; the lower sliding block I is connected with a lower clamping hand I; the lower sliding block II is connected with a lower clamping hand II; the lower clamping hand I and the lower clamping hand II are connected through a spring I. According to the pole-climbing robot, labor is replaced, resources are saved, the structure principle is simple, processing is convenient, the structure design is reasonable, and operation is stable.
Owner:KUNMING UNIV OF SCI & TECH

Electric control separation mechanism of unmanned aerial vehicle and parachute

The invention discloses an electric control separation mechanism of an unmanned aerial vehicle and a parachute. The electric control separation mechanism comprises a rotary device, an electromagnet and a locking device; when the locking device is located in the locked device, the electromagnet is not electrified, an electromagnet armature does not extend out, a driving rod and a connecting rod form into a straight line, and a driving rod cannot rotate under the action of the tension of the parachute through the position of a dead point of a hinge four-bar mechanism; when the locking device is located in the unlocked state, the electromagnet is electrified, the electromagnet armature extends out, and the driving rod of the hinge four-bar mechanism is pushed to rotate to damage the position of the dead point of the hinge four-bar mechanism. According to the electric control separation mechanism of the unmanned aerial vehicle and the parachute, the large tension of the parachute is borne by components such as the driving rod, the connecting rod and the driven rod of the hinge four-bar mechanism and the components are high in self-strength and bearing capacity; an output thrust value of the electromagnet is small and accordingly the appearance size and the mass of the electromagnet and the electric control separation mechanism can be effectively reduced; the structural principle is simple and practical, the reliability is high, and the application value is large.
Owner:ZHEJIANG COLLEGE OF ZHEJIANG UNIV OF TECHOLOGY +1

Method and device for simulating formation of reverse faults in laboratory

The invention discloses a method and device for simulating formation of reverse faults in a laboratory, and relates to the technical field of coal mine geology. A structure principle of traditional fault simulation experimental equipment is changed, a fault induction device is designed on the bottom of the interior of the equipment, and the role of inducing crack initiation of the faults is playedunder the conditions of upper pressing and lateral pressing; the position of the induction device can be adjusted and changed at any time, and formation process information of the simulated reverse faults with different inclination angles is obtained; the induction device is arranged on an elastic leather cushion, and the elastic leather cushion is connected with left and right compression steelplates into one whole, and the friction between a simulated formation material and a base is reduced in the process of lateral pressing. When the similar simulated formation material is laid, stress sensors are laid at a certain distance, stress changes are recorded in real time, and a transmission action mechanism of the faults to mining-induced stress is explained. The formation process of the reverse faults can be reproduced, the stress redistribution characteristics of a fault area after mining is mastered, and the influence of the existence of the reverse faults on mining is reflected.
Owner:SHANDONG UNIV OF SCI & TECH

Bamboo and wood composite container bottom plate manufactured by one-step hot pressing and having high elastic modulus and manufacture method thereof

ActiveCN102717408AGrow fastAccording to the modulus of elasticityLaminationLamination apparatusEngineeringPerformance index
The invention is a bamboo and wood composite container bottom plate manufactured by one-step hot pressing and having high elastic modulus and a manufacture method thereof. The structure of the plate is that materials for an upper surface and a lower surface are respectively 3-5 layers of thin bamboo curtains dipped with phenolic glue or melamine glue; an inner layer is a layer of transverse veneer and still inner layers are structural particleboards; or inner layers are all wood veneers; or the longitudinal and transverse wood veneers are replaced by a partial of bamboo curtains; and the number of layers and the fiber direction of the wood veneers or the bamboo curtains are determined by structural principles of wood container bottom plates. The plate has advantages in that by utilizing the outermost layers of bamboo curtain surfaces which are pressed densely and have a high elastic modulus, the elastic modulus of the bottom plate is increased greatly and the energy consumption is small. In addition, the surface bamboo curtains are characterized by low absorbent expansion rate, high hardness and good wear-resistance. Raw material sources of the bottom plate are widened. The finished composite container bottom plate has stable quality, and the performance indexes of the bottom plate, such as strength, elasticity modulus, etc., measure up to the technical requirements of the international container industry.
Owner:NANJING FORESTRY UNIV

Solar energy electric heat utilization device and utilization method thereof

The invention relates to a solar energy electric heat utilization device and a utilization method thereof and aims at solving the technical problems that structure is unreasonable, solar energy utilization method is single and efficiency is low of similar products in the prior art. The solar energy electric heat utilization device comprises a Fresnel lens, a coating film frequency division mirror, a photovoltaic cell, a heat receiver and a condensation reflector, and is characterized in that the Fresnel lens and the coating film frequency division mirror are arranged between the photovoltaic cell and the heat receiver, the Fresnel lens and the coating film frequency division mirror receive condensation light beams of the condensation reflector, one of the photovoltaic cell and the heat receiver are placed on a focusing portion of the Fresnel lens, and the other is placed on a focusing portion of the coating film frequency division mirror reflection condensation light beams. The solar energy electric heat utilization device is simple in structural principle, flexile in design, low in manufacturing cost, wide in application range, capable of distributing light utilization and heat utilization reasonably and effectively improving solar energy electric utilization efficiency and heat utilization efficiency, and is suitable for being used in solar energy utilization fields or structural improvements of similar products.
Owner:新昌县明盛纺织有限公司

Electronic lock control system, control method and electronic failure removing method thereof

ActiveCN103184817AExtended use timeSolve the problem that is difficult to openNon-mechanical controlsControl systemControl manner
The invention relates to an electronic lock control system, a control method and an electronic failure removing method thereof, and aims to solve the technical problems that conventional like electronic locks are poor in energy-saving effect and difficult to unlock after failure. The control system comprises an electronic control part and a mechanical control part, and the design feature of the control system is that the electronic control part comprises a power supply and a control switch controlled by a signal source; the mechanical control part comprises an electromagnet, a mechanical lock and a lock cylinder switch acting while a mechanical key is inserted into the mechanical lock; the power supply, the control switch, the electromagnet and the lock cylinder switch are in a serial connection to form a control loop; the electromagnet and a lock cylinder of the mechanical lock are in interlocking under the electrifying condition; and in an initial state, the control switch is in a closure state, and the lock cylinder switch is in an off state. According to the electronic lock control system, the control method and the electronic failure removing method thereof, the structural principle is simple, the control mode is reliable, the power is saved, even though the power is used up, the mechanical lock can still be used for unlocking, so that the electronic lock control system, the control method and the electronic failure removing method thereof are suitable for being applied to control systems of various types of electronic locks or improvement of the control modes of the electronic locks.
Owner:宁波生久科技有限公司
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