36results about How to "Vibration balance" patented technology

The invention relates to an air-screen specific gravity separator. The air-screen specific gravity separator comprises a frame, a supporting rod which is fixedly connected with the frame, a lifter which is arranged on the frame, a vertical air screen which is connected with the lifter, a dust removing system which is connected with the vertical air screen, a specific gravity screening device which is arranged below the vertical air screen and a power distribution box which is arranged on the frame; the air-screen specific gravity separator is characterized in that a front half screen and a front half screen driving device which is connected with the front half screen and the specific gravity screening device are also arranged between the vertical air screen and the specific gravity screening device; the front half screen is additionally arranged between the vertical air screen and a specific gravity screening part, namely a screening mechanism is added; before a material enters the specific gravity screening device, most of small crushed particles are effectively removed from the material, so the crushed particles in the material falling to a specific gravity platform surface are greatly reduced, the load of the specific gravity screening part is alleviated and the specific gravity separation effect is enhanced.

The invention provides a loudspeaker. The loudspeaker comprises a basin frame, a vibration system and a magnetic circuit system. The basin frame comprises a bottom frame for accommodating the magneticcircuit system and a top cover fixed on the magnetic circuit system. The vibration system comprises a first annular vibrating diaphragm, a second annular vibrating diaphragm, a third annular vibrating diaphragm, an annular spherical top, a voice coil and a framework. The outer side of the first annular vibrating diaphragm is connected with the first side plate. The inner side of the first annularvibrating diaphragm is connected with the outer side of the annular dome. The outer side of the second annular vibrating diaphragm is connected with the second side plate, the framework extends fromthe outer side wall of the voice coil to be connected between the inner side of the annular dome and the inner side of the second annular vibrating diaphragm, the outer side of the third annular vibrating diaphragm is connected with the inner side of the annular dome, and the inner side of the third annular vibrating diaphragm is connected with the top cover. According to the loudspeaker providedby the invention, by arranging the vibration system and adopting a three-diaphragm structure, the vibration of the vibration system can be more balanced, noise generated due to unbalanced vibration iseffectively reduced, and the tone quality is effectively improved.

A dual set super statically net beam laser vibrating model combined bearing beam big scale vibrating screen comprises screening box, elastic support under the screening box, super statically net beam device, motor and wheel tier type flexible articulator, model type horizontal rigid super statically combined bearing beam, several Y shape super statically combined reinforcing beam spaced on the side plate of the screening box, with the super statically net beam being dual super statically net beam laser vibrator that connects several net beams to the super statically connected plate and side plate forming into a beam combined container, the laser vibrator of the super statically net beam having 8 horizontally parallel arranged laser vibrating components and connected in series through universal joint, connecting with dual set super statically net beam forming an integral net beam big rigidity vibrator. It is simple in structure, fine in composite mechanical feature, good in structural process, reliable in vibrating stability with extensive application.

The invention discloses a vibration sounding structure which comprises a casing, a first fixed side, a second fixed side, a vibration plate, a coupling pad and a piezoelectric loudspeaker. The first and second fixed sides wrap two opposite ends of the casing respectively, and comprise a first flange and a second flange, which are arranged in a bent manner, respectively, the first flange is arranged opposite to the second flange, the first and second flanges extend opposite to each other, the vibration plate is connected with the first and second flanges, a gap exists between the vibration plate and the casing, the coupling pad is arranged in the gap, and the piezoelectric loudspeaker is pasted into an area wherein the casing is connected with the coupling pad to transmit vibration energy to the vibration plate via the coupling pad and generate sound waves. According to the vibration sounding structure, the coupling pad transmits the vibration energy of the piezoelectric loudspeaker to the vibration plate, high-efficiency sound waves can be generated via vibration of the vibration plate, and the flexibility can be improved.

An industrial truck comprises a lift frame having a load part for carrying a load and a hydraulic system including at least one hydraulic cylinder having a piston rod disposed within a cylindrical housing, and a hydraulic power unit. At least one sensor is configured to determine at least one of: (i) an actual speed of the piston rod of the at least one hydraulic cylinder, and (ii) an actual acceleration of the piston rod of the at least one hydraulic cylinder. Furthermore, a control unit is configured to: (i) receive at least one of a target speed of the piston rod and a target acceleration of the piston rod, (ii) determine at least one of a speed control deviation value from the target speed, and an acceleration control deviation value from the target acceleration, and, (iii) regulate atleast one of the actual speed of the piston rod based on the actual speed control deviation value and the actual acceleration of the piston rod based on the actual acceleration control deviation value.

The invention discloses a television loudspeaker with balanced vibration, which comprises an antimagnetic cover and a fixing ring, and is characterized in that the fixing ring is internally provided with a dustproof mechanism; the dustproof mechanism comprises a cavity formed in the fixing ring, an air inlet hole is formed in the side, close to the cavity, of the fixing ring, an exhaust hole is formed in the side, away from the air inlet hole, of the fixing ring, a mounting base is mounted on the side, close to the air inlet hole, of the cavity, an air bag is mounted outside the mounting base, and two springs are mounted on the side, close to the air bag, of the cavity. The side, close to the air inlet hole, of the air bag is fixedly connected with an air inlet ring, and the side, close to the exhaust hole, of the air bag is fixedly connected with an exhaust ring. When the loudspeaker works, a ventilation wall appears at the port, dust is blocked outside the loudspeaker, the dust is prevented from being accumulated outside the loudspeaker, the tone quality of the loudspeaker is greatly improved, meanwhile, static electricity generated among the dust is prevented from influencing equipment inside the loudspeaker, and the loudspeaker is safer and more reliable.

The invention discloses an oxygen pump which comprises an oxygen pump shell, wherein a motor is mounted in the middle of the inner cavity of the air pump shell; two eccentric gears are fixedly connected with the output shaft of the motor; the eccentric gears are rotationally embedded inside round holes in ends of swinging rods; diaphragm chambers are formed in two sides of the air pump shell; diaphragms are in sealed connection with the inner sides of the diaphragm chambers; air inlet one-way valves and air outlet one-way valves are respectively arranged on the outer sides of the diaphragm chambers; the other ends of the swinging rods are connected with the diaphragms; air chambers are formed in the upper sides of the diaphragm chambers; an air guide tube is connected between the two air chambers. The oxygen pump is relatively low in power, low in heating capacity, small in vibration noise and long in service life, a rotation speed of the motor can be changed, the oxygen discharge quantity of the oxygen pump can be freely adjusted, and in addition, due to adoption of two air pumping swinging rods and eccentric gear structures, not only is the air pumping efficiency improved, but also vibration of a single eccentric gear shaft can be balanced.

The invention provides a technical scheme of a balanced connection mechanism for a finishing mill bracket, which is characterized in that: a left lever is arranged on a left central shaft; a left lower connecting rod is connected on the left side of the left lever through a connecting shaft of the left lower connecting rod. T; the left lower connecting rod and a left mounting lug of a lower bracket are in adjustable fixed connection; a left upper connecting rod is connected on the right side of the left lever through a connecting shaft of the left upper connecting rod; the left upper connecting rod is connected with the left mounting lug of an upper bracket through the connecting shaft of the left lug of the upper bracket; a right lever is arranged on a right central shaft; a right lower connecting rod is connected on the right side of the right lever through a connecting shaft of the right lower connecting rod; the right lower connecting rod and a right mounting lug of a lower bracket are in adjustable fixed connection; a right upper connecting rod is connected on the left side of the right lever through a connecting shaft of the right upper connecting rod; the right upper connecting rod is connected with a right mounting lug of the upper bracket through the right lug of the upper bracket; the distance between the axis of the connecting shaft of the left lower connecting rod and the axis of the left central shaft and between the axis of the connecting shaft of the left upper connecting rod and the axis of the left central shaft is equal to the distance between the axis of the connecting shaft of the right lower connecting rod and the axis of the right central shaft and between the axis of the connecting shaft of the right upper connecting rod and the axis of the right central shaft.

A dynamic balance speaker includes a diaphragm, a voice coil, a printed circuit board, a base frame, a first tuning paper, a washer, a main magnet, and a U-yoke. The base frame is formed with a plurality of spaced first vents and a mounting groove in the middle between adjacent two of the first vents. The mounting groove is provided with positioning grooves. The printed circuit board is provided with positioning portions. The positioning portions are fixed in the positioning grooves, respectively. The voice coil is provided with a pair of lead wires. The lead wires are symmetrical to the center of the printed circuit board. The dynamic balance speaker provides good sound quality.

The invention relates to a musical instrument, namely an efficient-vibration vertical piano. The piano comprises a soundboard (1), a cast iron plate (2), tuning pegs (3), strings (5), a string nut (4), a string saddle (7) and string-hanging poles (6). The strings (5) are supported by the string nut (4) and the string saddle (7). The two ends of each string are respectively fixed to one of the tuning pegs (3) and one of the string-hanging poles (6). A plurality of keys of the piano are corresponding to the strings (5) in different zones. The piano is characterized in that: the cross section of the string nut (4), namely the cross section of the string nut (4) along the passing direction of the strings (5), is an obtuse triangle formed by two acute angles and one obtuse angle, and the obtuse angle is at one side of striking points of the strings (5) and is connected to the plate surface of the cast iron plate (2). Beneficial effects of the piano are that: vibration space behind the string striking points is largely broadened, so that the vibration at the two sides of the striking points is more balanced, the pronunciation efficiency of the strings is largely increased, the vibration effect is enhanced, the tone and the sound volume are significantly improved, and revolutionary changes of traditional vertical pianos and present vertical pianos occur.

The embodiment of the present application relates to a method, device, speaker and storage medium for balancing the vibration of a speaker. The method includes: acquiring the parameter value of the cavity environment parameter of the speaker, and determining whether the vibration amplitude of the diaphragm of the speaker reaches The set upper limit is reached, and then the vibration of the diaphragm is balanced according to whether the vibration amplitude of the diaphragm reaches the set upper limit. Through the above method, the vibration of the diaphragm of the loudspeaker can be balanced, and the amplitude of the auxiliary diaphragm can reach the upper limit, so as to keep the vibration of the diaphragm in place and improve the smoothness of the operation of the loudspeaker.

The invention belongs to the technical field of clothing treatment, and aims to solve the problem that the installation position of the counterweight on the outer tub of the existing clothing treatment equipment is limited. To this end, the present invention provides a clothes treating apparatus, the clothes treating apparatus includes a box body, an outer tub and a shock absorber, the clothes treating apparatus further includes a weight member disposed on the outer tub and a weight member disposed on the outer tub The mounting member is connected to the box body through the shock absorber. In the present invention, the installation member connected with the shock absorber is arranged on the counterweight member, so as to avoid the interference between the counterweight member and the shock absorber in the structural arrangement of the laundry treatment device, thereby avoiding the occurrence of interference caused by the shock absorber. The installation position of the counterweight member cannot be installed due to the inability to install the counterweight member, which provides more flexibility for the installation and arrangement of the counterweight member, and at the same time, it can also facilitate the installation of the counterweight member to a certain extent and improve the assembly efficiency.

The present disclosure discloses a speaker box. The speaker box includes a housing which has a receiving space and a side wall having a sound hole, and a sound generator received in the receiving space and including a diaphragm including a dome and a periphery connected to the dome. The periphery includes a near-end which is near the sounding hole and a far-end which is farther the sounding hole. A width of the near-end of the periphery perpendicular to a vibration direction of the diaphragm is smaller than a width of the far-end of the periphery perpendicular to the vibration direction.

The invention provides a pneumatic separating device. The pneumatic separating device comprises a frame; a separation chamber is arranged on the frame; the top and the bottom of the separation chamber are each provided with an opening; an air blowing device is arranged below the separation chamber and is used for blowing air upwards from the lower portion of the separation chamber; the air blowing device is provided with a control valve which is used for intermittently blowing air. The pneumatic separating device is capable of separating materials different in density by one time. During continuous running of the device, the materials can be layered quite clearly and obviously; therefore, the pneumatic separating device is simple in structure, capable of separating the materials different in density by one time, and quite good in separation effect.

The invention belongs to the technical field of laundry processing equipment, and aims to solve the problem that in the existing laundry processing equipment, installing a counterweight on an outer cylinder results in a limited installation position of an installation member for installing the outer cylinder. To this end, the present invention provides a laundry processing device, which includes a box body and an outer cylinder, and the laundry treatment equipment also includes a counterweight member arranged on the outer tube and a connecting link between the counterweight member and the box body. Install components. In the present invention, by installing the installation member on the counterweight member of the drum, the interference between the installation member and the counterweight member in the structural arrangement of the laundry processing equipment is avoided, so that the installation position of the installation member will not be affected by the counterweight configuration. The limitation of the installation position of the components improves the flexibility of the arrangement of the installation components, and at the same time facilitates the installation of the counterweight components to a certain extent, avoiding the situation that the installation space of the counterweight components is insufficient.

The embodiment of the invention relates to a method and a device for balancing the vibration of a loudspeaker, the loudspeaker and a storage medium, and the method comprises the steps: obtaining a parameter value of a cavity environment parameter of the loudspeaker, and determining whether the amplitude of a diaphragm of the loudspeaker reaches a set upper limit value or not according to the parameter value, and balancing the vibration of the vibrating diaphragm according to whether the amplitude of the vibrating diaphragm reaches a set upper limit value or not. Through adoption of the method,the vibration of the diaphragm of the loudspeaker can be balanced, and the amplitude of the auxiliary diaphragm reaches the upper limit value, so that the diaphragm is kept vibrating in place, and the working fluency of the loudspeaker is improved.

The invention relates to the technical field of permanent magnet speed adjustment, in particular to a permanent magnet governor with a shift lever-type air gap adjusting device. The permanent magnet governor comprises a conductor rotor, a permanent magnet rotor, an intermediate shaft and an air gap adjusting mechanism. The permanent magnet governor is characterized in that the air gap adjusting mechanism comprises a linear driver, a shaft lever and an adjusting sleeve; the adjusting sleeve is connected with the permanent magnet rotor through a permanent magnet side hub; the permanent magnet side hub is connected with the intermediate shaft in a sliding manner; one end of the intermediate shaft is connected with an intermediate plate; a U-shaped opening is formed in one end of the shaft lever; one end of the shaft lever is hinged with the outer wall of the adjusting sleeve; the middle point of the shaft lever is hinged with the end part of a support rod; the support rod is fixed on a support base; and the other end of the shaft lever is hinged with a piston end of the linear driver. Compared with the prior art, the permanent magnet governor has the beneficial effects that, compared with an existing inner and outer barrel cam structure, the permanent magnet governor has the characteristics of a large arm of acting force and an external maximum stress point; enough acting force can be generated to balance vibration of the magnet rotor; a damageable part is easier to inspect and maintain; and the permanent magnet governor has relatively high safety and reliability.