45results about How to "Solve shock absorption" patented technology

The invention discloses a rope-free lifting machine using a lifting force as a brake drive force. The rope-free lifting machine comprises a supporting girder assembly, a cage, a linear electric motor drive device, a location guiding device, a brake device, a pair of safety tongs and a bumper. Concave strip grooves used as braking rails of the brake device and guiding rails of guiding location wheels are arranged on two side surfaces of the supporting girder assembly. A rotor of a linear electric motor is in split sliding connection with the cage and is connected with a brake push rod, the lifting force of the rotor of the linear electric motor is used as the brake releasing force of a boost type clamp brake, the down accelerated speed of the rope-free lifting machine can be automatically limited without using a special brake drive power supply, a brake driver and a controller, thus the structure of the brake is simplified. The rope-free lifting machine has the four defensive functionsof the power-off protection of the brake, the safety speed-limiting of the brake, the power-off dynamicbraking of the linear electric motor and the overspeed brake of the safety tongs, and fundamentally ensures the safety and the reliability of the lifting machine.

The invention provides an efficient compression smashing device of straw. The efficient compression smashing device of the straw comprises a case, a compression cavity, a smashing cavity and a motor cavity, wherein the case is provided with a feed hopper, a bottom seat and a discharge pipe, the compression cavity is formed in the lower end of the feed hopper, compression plates, an air cylinder, a telescopic shaft and a sliding chute are arranged in the compression cavity, the number of the compression plates is two, the compression plates are connected with the telescopic shaft, support legs are arranged at lower ends of the compression plates, the smashing cavity is formed in the lower end of the compression cavity, the smashing cavity is provided with a discharge outlet, a cross rod, a left vertical rod, a feeding case and a right vertical rod, the feeding case is arranged in the middle of the smashing cavity, and fixed on the inner wall of the lower end of the case, the feeding case is provided with a smashing blade, a rotation shaft and a feed inlet, the rotation shaft runs through the lower end of the case, a conveying blade is arranged on the rotation shaft, the upper end of the rotation shaft is connected onto a bearing, the motor cavity is formed in the lower end of the case, and a drive motor and a damping device are arranged in the motor cavity. The efficient compression smashing device of the straw can be stretched out and drawn back, is prevented from jamming, performs cyclic grinding, is thorough in smashing and high in smashing efficiency, and can achieve shock absorption.

The invention provides a signal lamp for intelligent transportation, and relates to the field of intelligent transportation equipment. The signal lamp comprises a base, an installing rod is fixedly connected to the bottom of the base, universal wheels are arranged at the bottom of the installing rod, the top of the base is fixedly connected with a lifting device and a stretchable rod separately, asupporting frame is fixedly connected to the top of the stretchable rod, a lifting rod is fixedly connected to the top of an inner cavity of the supporting frame, a foot pad is fixedly connected to the bottom of the supporting frame, a stretchable device is fixedly connected to the top of the supporting frame, and a lamp box is fixedly connected to the top of the stretchable device. According tothe traffic lamp for intelligent transportation, due to the foot pad and an antiskid pad at the bottom of the supporting frame, equipment can be effectively fixed and stabilized, the equipment is prevented from moving freely, and the equipment can be fixed conveniently; due to the lifting device and the lifting rod, the supporting frame can be effectively lifted, the supporting frame is lifted when the signal lamp needs to be moved, and the signal lamp can be conveniently moved through the universal wheels.

The invention relates to an underground electromagnetic control damping elastic centralizing device. The device is characterized by mainly comprising a supporting connecting mechanism, an electromagnetic control system and a damping elastic centralizing mechanism. The underground electromagnetic control damping elastic centralizing device can be connected to a matched underground traction apparatus or a matched logging instrument; four groups of centralizing arm units at the included angles of 90 degrees are adopted to realize the centralizing effect; the device is capable of adapting to the change of the underground pipe diameter under the combined action of the electromagnetic control system and the elastic stretching of the spiral damping spring, wherein the electromagnetic control system is capable of realizing continuous self-adaptive regulation of the vibration and the elastic impact force of the damping spring and the case that the damping of the centralizing device completely depends on the rigid stretching of the spiral damping spring, and therefore, the service life and the stability of the centralizing device can be improved and the centralizing effect can be guaranteed; the normal underground operations of the logging instrument can be prevented from being affected by the fatigue damage of the centralizing device and the like.

The invention provides a phase-locked loop. The phase-locked loop comprises an active filter, a voltage-controlled oscillator, two phase detectors, a charge pump and a digital/analogue converter, wherein the voltage-controlled oscillator generates an oscillation signal according to a control signal provided by the output end of the active filter; a first phase detector generates a phase difference signal according to a reference signal and a feedback signal corresponding to the oscillation signal; the charge pump provides a charging current to a first input end of the active filter according to the phase difference signal; a second phase detector generates a digital reference voltage according to the phase difference of the reference signal and the feedback signal; and the digital/analogue converter converts the digital reference voltage into an analogue reference voltage, and provides the analogue reference voltage to a second input end of the active filter.

The invention relates to the field of electric vehicles, in particular to a battery box installation structure applied to the electric vehicles. A rubber gasket and a bushing are arranged at the upper part and the lower part of a through hole of an installation lug respectively, the purposes of loosening prevention and damping can be achieved, and various external forces transferred to a battery box are reduced; only installation lugs are arranged in the prior art, the difference between the installation lugs provided by the invention and the existing installation lugs is that a reinforced extending part bent along a bottom angle of the battery box is integrally formed, firstly due to the fact that the reinforced extending parts are integrally formed on the installation lugs, the hardness between the reinforced extending parts and the installation lugs is higher, secondly the reinforced extending parts are bent to the bottom of the battery box, and then in the combination with installation strips arranged on the bottom of the battery box, the reinforced extending parts are wrapped on the installation strips, so that the strength of the installation lugs is strengthened.

The invention provides an energy consumption support device with replaceable frames. The energy consumption support device comprises a frame structure and a middle connecting part, wherein the inner side of the frame structure is provided with at least three frame end lug plates, the middle connecting part is arranged in a polygon which is defined by the at least three frame end lug plates, a replaceable energy consumption support unit is connected between the middle connecting part and each frame end lug plate, and each replaceable energy consumption support unit comprises an end part damper, a steel tie rod and a middle part damper, wherein the end part damper, the steel tie rod and the middle part damper are connected. When an earthquake action happens, the dampers of the energy consumption support device can largely absorb, consume and store input energy of earthquake motion, and the earthquake action is dramatically reduced. By means of the energy consumption support device with the replaceable frames, the problem of shock absorbing of a multi-story frame structure is solved, the purpose that the shock absorbing is provided for the multi-story frame structure which must need shock absorbing to guarantee that the multi-story frame structure is safe under the earthquake loading function is achieved, and quick dismantling and replacing can be achieved after earthquake.

The invention provides high-elasticity and high-stretchability shadowless glue and a preparation method thereof. The high-elasticity and high-stretchability shadowless glue is prepared from the following raw materials in percentage by weight: 30-50% of polyurethane acrylate, 1-5% of 2,4,6-trimethylbenzoyl-diphenyl phosphine oxide, 1-5% of 1-hydroxycyclohexyl phenyl ketone, 20-35% of hydroxyethyl methacrylate, 20-35% of isobornyl acrylate, 1-5% of methyl acrylate and 1-5% of 3-(2,3-epoxypropoxy)propyltrimethoxysilane. Compared with the prior art, the product provided by the invention has the characteristics of high stretchability, favorable weather resistance and high bonding strength, is long in service life, and can absorb the stress of a bonded product so as to solve the problem on shock absorption in the bonding position. Besides, the UV (ultraviolet) glue provided by the invention is soft in texture but not the existing hard lump.

The invention discloses a gas storage tank with temperature regulation, comprising a gas storage tank main body, a supporting device and an adjusting device; wherein the supporting device comprises asupporting ring and shock absorbing assemblies; the supporting ring is fixedly sleeved at a lower part of the gas storage tank main body; the shock absorbing assembly is a plurality of groups; each group of shock absorbing assembly comprises a fixing cylinder, a supporting rod and a compression spring; the fixing cylinder is fixedly arranged at the lower end of the supporting ring; the upper end of the supporting rod is slidingly arranged in the fixing cylinder up and down; the compression spring is located in the fixing cylinder; one end contacts with the supporting ring and the other end contacts with the supporting rod; the adjusting device comprises a liquid storage tank and a sealing ring; the sealing ring is arranged in the middle of the gas storage tank main body and forms a sealingspace with the gas storage tank main body; the liquid storage tank is connected to the input end of a water pump; the output end of the water pump is connected to the lower end of the sealing space through a liquid inlet pipe, and the upper end of the sealing space is connected to the liquid storage tank through a liquid outlet pipe. With a simple structure, the gas storage tank with temperatureregulation can not only dampen the gas storage tank but also adjust the temperature.

The invention provides a high-stability assembled bridge based on a steel structure. The high-stability assembled bridge based on the steel structure comprises a bridge pier, a bridge frame fixedly mounted at the top of the bridge pier, a first supporting plate fixedly mounted on the inner bottom surface of the bridge frame, telescopic supporting rods fixedly mounted at the top of the first supporting plate, a first fixing plate arranged at the tops of the telescopic supporting rods, first springs having one ends fixedly mounted at the top of the first supporting plate and the other ends fixedly installed at the bottom of the first fixing plate, and internally connected with the telescopic supporting rods, and a bridge body arranged at the top of the first fixing plate. The high-stabilityassembled bridge based on the steel structure has the advantages of being convenient to use and install, capable of effectively fixing the bridges and capable of achieving good shock absorption and buffering between the bridges.

The invention belongs to the technical field of packaging boxes, and particularly relates to a disposable fruit packaging fresh-keeping plastic box which comprises a box body and a box cover. The operation part is held by hand to pick up the box cover and place the box cover above the box body, so that the avoiding groove is aligned with the pressing part between the avoiding notches, then the box cover is moved downwards to enable the lower surface of the box cover to be in contact with the supporting part, and then the operation part is rotated by hand to drive the box cover to rotate; when the avoiding grooves are aligned with the avoiding notches, rotation is stopped, the pressing part is opened by the box cover, the pressing part is elastically deformed, the pressing part extrudes the box cover, and then the box cover is locked on the box body. Therefore, the box cover is prevented from being automatically opened, fruits are prevented from being scattered in the moving process, meanwhile, the situation that evaporation of water of the fruits is accelerated in the environment with large air circulation is avoided, and the fruits are kept fresh.

The invention relates to the technical field of bearing seat equipment, in particular to a self-lubricating bearing seat. The self-lubricating bearing seat comprises a bearing seat body, a fixing structure, a cooling structure, a lubricating structure, limiting structures and oil dripping structures. A bearing is fixed in the bearing seat body through the fixing structure, so that the fixing effect is good, the bearing does not easily deviate, and the rotating effect of bearing operation is improved; the bearing seat body is cooled through the cooling structure, and heat generated by the bearing and the bearing seat body is effectively dissipated, so that the service life of the bearing is prolonged; lubricating oil is dropwise added to the bearing seat body and the bearing in the fixing structure through the lubricating structure, so that the rotation of the bearing is more lubricant, and the working efficiency of bearing operation is improved; the lubricating structure is more stableduring oil dripping through the limiting structures, and the lubricating effect of the lubricating oil is improved; the lubricating oil is added to a bolt for fixing the bearing seat body and a vehicle body through the oil dripping structures, so that the phenomenon that the bolt is difficult to screw due to rusting is avoided, the bearing seat body is convenient to disassemble and assemble, anddisassembling efficiency is improved.