77results about How to "Reduce vibration energy" patented technology

The invention provides an efficient damping motor. The motor comprises a motor shell, a first end cover and a second end cover, the first end cover and the second end cover are arranged at the two ends of the motor shell and are in sealed and fixed connection with the motor shell, and the motor shell comprises an inner shell body and an outer shell body; a gap is reserved between the inner shell body and the outer shell body, a damping sleeve which sleeves the inner shell body is arranged in the gap between the inner shell body and the outer shell body, and multiple arc damping parts which extend in the axial direction of the motor are arranged at the side, close to the outer shell body, of the damping sleeve; arc openings of the damping sleeves face the outer shell body, and the arc damping parts are annularly arranged around an inner cavity of the motor shell and abut against the outer shell body. According to the efficient damping motor, the vibration insolation, vibration absorption and vibration reduction effects are achieved by using the damping sleeve and the arc damping parts so that vibration which is generated due to running of the motor can be reduced as much as possible, the arc damping parts are in an arc shape, the arc openings of the arc damping parts face the outer shell body, accordingly, the damping sleeve can firmly sleeve the inner shell body, and the vibration energy which is generated due to running of the motor can be effectively reduced.

The invention relates to small kitchen appliances, in particular to a silent food processor. The processor comprises a cup body assembly, a base body which is arranged below the cup body assembly andused for supporting the cup body assembly, and a shell arranged on the outer side of the cup body assembly in a sleeving mode. The water cup is characterized in that the cup body assembly is positioned on the base body, a first shock absorption piece for isolating the cup body assembly from the base body is arranged between the cup body assembly and the base body, the cup body assembly is not in contact with the shell, and a cup opening of the cup body assembly floats relative to the shell. According to the food processor, the cup body assembly is isolated from the base body and does not makecontact with the shell, the cup opening of the cup body assembly floats relative to the shell, vibration energy generated in the working process of the food processor can be absorbed and converted, and noise generated in the working process can be greatly reduced.

The invention relates to the field of living home appliances and discloses a suspension damping system and a washing machine. The suspension damping system comprises a suspended rod 2 and a damping assembly on the suspended rod, the damping assembly comprises a ball seat 10, a holder 20 and damping elastic parts 30, and at least a part of the inner circumference of the ball seat 10 is pressed andconnected onto the holder 20; the holder 20 comprises a damping adjustment part which can be in surface contact with the suspended rod 2, wherein when the ball seat 10 is stressed and moves toward theholder 20, the friction force between the damping adjustment part 3 and the suspended rod 2 is changed, so that the damping force is changed corresponding to the stress force of the ball seat 10; thevibrational energy of the system can be effectively reduced, and large vibration noise, drum collision, displacement and the like of the whole machine can be avoided; furthermore, the suspension system can be effectively driven to move, and the situation is avoided that vibration is transmitted to a shell of the washing machine and abnormal sound or vibration is generated.

A fan tower load shedding method based on a separated engine room is characterized in that by means of the design of two mass blocks of the separated engine room, the two mass blocks include a sliding mass block formed by a rotor, a hub, a transmission system and a generator and a fixed mass block formed by the engine room, the sliding mass block slides on the fixed mass block through a slide track, and the two portions are connected through an elastic damping device. By means of the method, when a wind turbine vibrates forwards and backwards because wind wheel thrust changes, relative movement of the sliding mass block is caused through stretching and shrinking of the elastic damping device, and an elastic damping system of the two mass blocks is formed. The purpose of reducing tower load and tower vibration is achieved by absorbing the tower vibration energy through a damping characteristic.

The invention provides a damping radiating motor. The damping radiating motor includes a motor shell, two ends of the motor shell are hermetically connected with a first end cover and a second end cover, the motor shell includes an inner shell and an outer shell, a gap is reserved between the inner shell and the outer shell and a damping cavity formed in the gap, a damping sleeve that sleeves theinner shell is arranged in the damping cavity, a gap is reserved between the damping sleeve and the outer shell, a plurality of damping feet are distributed at one side of the damping sleeve which isclose to the outer shell and are arc-shaped, outer cambered surfaces of the damping feet abut against an inner circumferential surface of the outer shell, and the damping feet are connected with the damping sleeve through elastic connecting pieces. The damping radiating motor provided by the invention utilizes the damping sleeve and damping feet to achieve functions of shock insulation, shock absorption and damping between the inner shell and the outer shell, so that shock generated by motor running can be reduced as much as possible, through arrangement of a fan assembly and mutual cooperation of a first strip-shaped opening, a second strip-shaped opening and radiating holes, heat generated by working of elements inside the motor is radiated, a radiating effect is obvious, and the servicelife of the motor can be effectively prolonged.

The invention provides a vibration damping system and a washing machine. The vibration damping system is used for the washing machine, and includes a first vibration damping assembly connected with the outer barrel of the washing machine, and a second vibration damping assembly arranged on the bottom of the body of the washing machine, wherein the second vibration damping assembly is connected with the first vibration damping assembly. The vibration damping system is simple in structure and easy to achieve; by arranging the first vibration damping assembly and the second vibration damping assembly which are connected in series to form the secondary vibration damping system, the drastic vibration of a drum during the work of the washing machine is effectively absorbed, it is avoided that the vibration of the drum is transmitted to the body of the washing machine and thus causes the drastic shake of the body of the washing machine, and therefore the stability of the washing machine at work is improved; meanwhile, the system can greatly reduce the vibration noise of the washing machine at work, reduce the environmental noise pollution, and thus improve the user's use satisfaction.

The invention discloses a method for reducing mining vibration energy under a hard rock stratum. The method comprises 1) acquiring the geological exploitation information of a mining area, determining the maximum working face mining width under the condition of no breaking of a hard rock stratum and arranging 50-70m of partition coal pillars between work faces, 2) before mining on the mining face, along the working surface direction, drilling several holes on the ground surface, 3) in a mining process on the coal mining face, carrying out grouting filling on a separation area under the hard rock stratum orderly through the holes, forming several compressed support bands in a goaf through grouting filling pressure, wherein the width of each one of the support bands is 1/3 that of the coal mining face. Through grouting filling, a rock stratum having large thickness can be supported. The ground grouting filling does not disturb coal mining under the shaft. A normal long-wall work face can be arranged without a stripe so that a recovery rat and efficiency are significantly improved.

The invention discloses an axle box rubber cushion of a railway vehicle bogie. The axle box rubber cushion comprises an upper lining plate and a lower lining plate which are vertically distributed, wherein a damping device is arranged between the upper lining plate and the lower lining plate, and the damping device, the upper lining plate and the lower lining plate are arranged in a split manner, or the damping device is formed by the upper lining plate and the lower lining plate. The damping device is used for converting kinetic energy of transverse and/or longitudinal vibration of the upper lining plate and the lower lining plate into internal energy, thereby reducing the kinetic energy of vibration, avoiding snaking motion, caused by vibration, of wheel pairs, and further improving running stability and safety of a railway vehicle. The invention also discloses the railway vehicle bogie and the railway vehicle.

The invention discloses a novel bumper which comprises a bumper body and a steel beam. A damping seat is arranged at the bottom of the bumper body. First damping springs are symmetrically arranged onthe two sides of an inverted-T-shaped groove. A second piston is arranged on the top side of the inverted-T-shaped groove in a sliding and sleeving mode. The two sides of the steel beam are elastically connected with the damping seat through the symmetrical second damping springs respectively. In the novel bumper, part of hitting energy can be counteracted by means of the second damping springs, the rest of energy is first transmitted to damping liquid through a piston rod to be counteracted and finally transmitted to the horizontal symmetrical first damping springs through a first piston to be counteracted, the shaking energy is reduced to the maximum extent, and a certain guarantee is provided for the vehicle structure and the life safety of a driver; meanwhile, through the common effectof a supporting rod and a horizontal third damping spring, torsion resistance of the bumper can be effectively improved, and the structure is effectively protected.

The invention provides a damping-capacity-adjustable passive shock absorber for bridge construction. The passive shock absorber comprises a bottom plate, a mounting cavity is formed in the bottom plate, a motor is arranged in the mounting cavity, a top plate is arranged above the bottom plate, and a piston rod is fixedly connected with the upper surface of the bottom plate through a bolt; throughthe arrangement of the motor, the piston rod, a rotating rod, a first through hole, a piston, a shell and engine oil, the interior of the shell is divided into two oil cavities through the piston, when a bridge is vibrated, the shell is extruded downwards to slide relative to the piston, vibration energy is absorbed under the pressure difference effect of the two oil cavities, the motor is started, the motor drives the rotating rod to rotate, the overlapping area of the first through hole and a round hole in one side of the rotating rod is changed, then the flow of engine oil between the two oil cavities is changed, the pressure difference of the two oil cavities is changed, damping is regulated and controlled, the passive shock absorber can adapt to different using environments conveniently, and the service life of the bridge is prolonged.

The invention relates to a combined electric appliance fixing seat with a wire inlet device. The combined electric appliance fixing seat comprises a support seat, a base body and the wire inlet device, wherein the support seat comprises a detachable upper support plate, a lower support plate and two groups of support assemblies, chutes are formed in both sides of the upper support plate in a transverse direction, first bulges are arranged on the upper edges of the chutes in the forming direction of the chutes, and the support assemblies comprise four support rods and L-shaped connecting plates; the base body comprises a plurality of bottom plates, first round holes are formed in the middle of the bottom plates, an upper pressing plate is arranged above the first round holes, a sleeve is installed below the first round holes, a first damping spring sleeves the sleeve, and a lower pressing plate which is the same as the inside diameter of the sleeve is arranged in the middle of the uppersupport plate; and the wire inlet device comprises a boss arranged on the lower support plate and a containing cavity formed in the middle of the boss, and a wire and cable clip is arranged in the containing cavity. The combined electric appliance fixing seat has the advantages of the simple structure, easiness in removal and installation and good damping effect and is suitable for electric appliances of different sizes, less space is occupied after retraction, and electric appliance wires are safely arranged.

The invention discloses a mixing device for building light wall board production. A mixing box is included and fixed to a supporting frame. Damping rods are fixed to the bottom of the supporting frameand sleeved with damping springs. The bottoms of the damping rods are fixedly connected with the top of a base. Universal wheels with brakes are arranged at the bottom of the base. A feeding port isformed in the top of the mixing box and internally provided with an electromagnetic valve. The electromagnetic valve is arranged at the bottom of a metering box. The metering box is fixed to a weighing sensor. The weighing sensor is fixed to the mixing box. A stirring shaft is arranged in the mixing box and provided with a spiral blade and a frame type blade. Through the arrangement of the metering box, the spiral blade, the frame type blade, a stirring bar and an air cylinder, the problems that a traditional mixing device for light wall board production is poor in mixing uniformity, and quantitative feeding is not convenient are solved.

The invention discloses an active damping vibration isolation bearing device. The active damping vibration isolation bearing device comprises a lower base, and an upper base arranged on the lower base, wherein the lower base comprises a lower base lower baseplate; a lower base force transfer core pole is mounted in the center of the lower base lower baseplate; a lower base upper top plate is mounted at the top of the lower base force transfer core pole; the upper base comprises an upper base upper top plate arranged on the lower base upper top plate; an upper base outer wall is mounted on the upper base upper top plate; an upper base lower end plate is mounted at the lower end of the upper base outer wall; a piezoelectric stack coats the external of the lower base force transfer core pole; a first force transfer cushion plate is arranged at the upper end of the piezoelectric stack; and a second force transfer cushion plate is arranged at the lower end of the piezoelectric stack. The active damping vibration isolation bearing device can effectively stop when solving the transfer of vibration to the upper structure of a bearing and the transfer of vibration of the upper structure to a foundation, and can consume the vibration energy through a frictional layer; and the active damping vibration isolation bearing device has such advantages as definite force transfer path and strong capacity to adapt to environment.

The invention discloses a damping device in the machinery field. The device comprises a baseplate, hydraulic retractable rods and a mounting plate, the two sides of the bottom of the mounting plate are connected with the baseplate through the hydraulic retractable rods, and three damping mechanisms are arranged between the two hydraulic retractable rods in the horizontal direction of the mountingplate at equal intervals. According to the damping device in the machinery field, firstly, air springs can absorb partial vibration energy, vertical rods move up and down under the vibration effect, and accordingly horizontal plates fluctuate up and down; the vibration energy is further absorbed through a connection rod structure, damping springs are stretched or compressed under the dragging effect of the horizontal plates, the vibration energy is lowered to the minimum accordingly, and mechanical equipment is effectively protected; secondly, through arrangement of reset springs and a rollershaft, movement of the damping device is facilitated, after the mechanical equipment is installed, the roller shaft does not have the bearing function at the same time, the baseplate is directly in contact with the ground and has the bearing function, and accordingly the structure is kept stable.

The invention discloses an embedded installation type mobile power distribution cabinet which comprises a power distribution cabinet body, a power distribution drawer, an electric push rod, a lifting mechanism, a supporting unit and a servo motor. Universal wheels are installed at the bottom of the power distribution cabinet body, a cooling fan is installed at the bottom of the inner side of the power distribution cabinet body, a dust blocking net is fixed to an air outlet of the cooling fan, a moving mechanism is installed at the bottom of the power distribution cabinet body, a cleaning unit is installed on the side face of the moving mechanism, the cleaning unit is arranged corresponding to the dust blocking net, and sliding rails are fixed to the inner side of the power distribution cabinet body in the front-back direction. A first sliding groove is formed in the side face of the power distribution drawer, the sliding rails are in sliding connection with the first sliding groove, and a temperature sensor is installed on the side face of the power distribution drawer. The embedded installation type mobile power distribution cabinet is convenient to move, good in heat dissipation effect, convenient to maintain and high in stability.

Adaptive stimulation systems combine impulse-generated swept-frequency stimulation vibration with cyclically-varying hydraulic pressure to provide adaptive down-hole stimulation. Swept-frequency stimulation vibration arises from cyclical shifts of the power spectral density (PSD) of each stimulator's fluid interface vibration (via closed-loop control of the rebound cycle time and/or the fluid interface's effective elastic modulus). PSD's are adjusted for resonance excitation and fracturing of geologic materials at varying distances from a wellbore, closed-loop control incorporating backscatter vibration from stimulated geologic material. One or more stimulators generate vibration in bursts comprising a plurality of vibration frequencies. Timed signals from a programmable controller affect directional propagation of combined vibration wave fronts from a stimulator array. As fracturing proceeds to smaller (e.g., proppant-sized) fragments having higher resonant frequencies, PSD's are up-shifted, increasing relative stimulation vibration power in higher frequencies. Progressive stimulation is thereby optimized, facilitating plain-water (or liquefied propane) fracs with self-generated proppant.

The invention discloses a wave-shaped steel damping wall and concrete filled steel tubular column structure energy dissipation system. The wave-shaped steel damping wall and concrete filled steel tubular column structure energy dissipation system comprises a wave-shaped steel damping wall and concrete filled steel tubular columns. Cross-shaped steel cores are arranged in hollow steel tubes, and concrete mortar is injected to form the concrete filled steel tubular columns; and the wave-shaped steel damping wall is formed by combining wave-shaped steel plates and energy dissipation inner core plates. The upper connecting end part and the lower connecting end part of the wave-shaped steel damping wall are connected with I-shaped steel beams through bolts, and the left connecting end part and the right connecting end part of the wave-shaped steel damping wall are connected with the concrete filled steel tubular columns through shear keys. The I-shaped steel beams are connected with the concrete filled steel tubular columns through web connecting pieces and flange connecting pieces. The damping wall surface adopts the two-side pressure wave type steel plates to cooperatively dissipate energy, the two-side pressure wave type steel plates are connected and combined into a row of embedded columns to support the upper-layer I-shaped steel beam to increase the stability of the whole structure, the energy dissipation inner core plates and the concrete filled steel tubular columns are connected through the shear keys, the energy dissipation inner core plates and the concrete filled steel tubular columns are linked to dissipate energy when vibration occurs, and the characteristic of reducing vibration energy is achieved.

A fan assembly includes a vibration damping system (12) to reduce induced vibrational energy generated as a result of fan motor (26) operation. The vibration damping system (12) includes a plurality of arms (100) and damping material (102). The vibration damping system arms extend between a fan motor and a shroud assembly disposed circumferentially outward from the fan motor housing. The damping material (102) is attached to an end of each of the vibration damping system arms (100) and connects each arm to the shroud assembly. The damping material (102) absorbs induced vibrational energy generated by fan motor operation.

The invention relates to the technical field of roads, in particular to a well lid periphery road surface protection device used for the concrete road surface. The well lid periphery road surface protection device comprises universal wheels, control mechanisms, supporting columns, a box body, a collecting mechanism, fixing mechanisms, enclosure mechanisms, a partition plate, a storage battery, a compression mechanism, an electromagnetic valve, a cooling mechanism and damping mechanisms. When the temperature in concrete is high, the control mechanism opens the electromagnetic valve, the coolingmechanism sprays water on the surface of the concrete in an atomizing mode to decrease the temperature of the concrete, the water is not directly sprayed on the surface of the concrete, and the situation that the water impacts the surface of the concrete is prevented. The enclosure mechanisms are arranged on the periphery of the concrete to enable the uncongealed concrete to be enclosed, sunlightand rainwater are prevented from being directly sprayed on the surface of the concrete, and thus the concrete is protected. The damping mechanisms are arranged on the periphery of the concrete, whena vehicle passes by the concrete, the ground transmits vibration to enable the damping mechanisms to vibrate, vibrating energy is reduced, thus the concrete is damped, thus the situation that due to ground vibration, the uncongealed concrete greatly vibrates, and thus the concrete is cracked is prevented.