13results about How to "Effective vibration reduction" patented technology

The invention belongs to the technical field of vehicle suspension damping, and particularly relates to a blade type damper with a buffer structure, which comprises a shell (1), a connecting arm assembly (2), a left buffer assembly (3), a right buffer assembly (4), a blade assembly (5), a partition plate assembly (6) and an end cover assembly (7), according to the technical scheme, the buffer is additionally arranged in a traditional blade type shock absorber, and the damping coefficient of the buffer is smaller than that of the blade type shock absorber. The buffer achieves vibration reduction on high-frequency vibration, so that the low-pass filtering effect on an original blade type vibration damper is achieved, a vibration reduction valve of the original blade type vibration damper effectively reduces vibration in a low-frequency area, but the effect of the vibration reduction valve is restrained in a high-frequency area, and therefore the situation that the vibration reduction valve consumes energy and deteriorates vibration in the high-frequency vibration area is avoided.

This invention provides an electronic device comprising a housing, a hard disk, at least one fan, and at least one vibration damping structure. The hard disk is disposed within the housing. At least one fan is disposed within the housing. At least one vibration damping structure is located between the hard disk and the at least one fan, and includes an elastic element and a mass block. The elastic element includes a mounting portion, a supporting portion, and a swinging portion. The mounting portion is disposed within the housing. The opposite ends of the supporting portion are respectively connected to the mounting portion and the swinging portion. The mounting portion and the swinging portion are located on the same side of the supporting portion. The swinging portion is oscillating relative to the supporting portion and the mounting portion. The mass block is disposed within the swinging portion. The solution provided by this invention enables the vibration damping structure to achieve both low assembly cost and effective vibration damping.

The present invention relates to a spring vibration reduction mechanism with a quick locking function, comprising a base, a mounting seat and two guide rods, two base guide rod supports are fixedly connected on both sides of the base, two mounting seat guide rod supports are fixedly connected on both sides of the mounting seat, one mounting seat guide rod support on each side is located between the two base guide rod supports on the same side, each base guide rod support is provided with a base guide rod support hole, each mounting seat guide rod support is provided with a mounting seat guide rod support hole, and each guide rod passes through the base guide rod support hole and the mounting seat guide rod support hole on the same side in sequence; a vibration reduction device is provided between each base guide rod support and each mounting seat guide rod support, and also includes a locking device; a quick clamping device is provided at the bottom of the base. Beneficial effects: It can solve the problems of guidance and vibration reduction at the same time, ensure the stability of the optical axis of the equipment and the reliability of the equipment in harsh environments such as strong vibration and shock, and the base can be quickly locked on the weapon system.

The embodiment of the invention relates to a railway vehicle secondary transverse damping adjustable oil pressure shock absorber device which comprises a shock absorber body, a piston, a bottom valve, a working cylinder and an oil storage cavity are arranged in the shock absorber body, and unloading valves are arranged on the piston and the bottom valve; the valve block assembly comprises an electromagnetic valve, a damping valve and a valve seat; the controller is used for acquiring relative motion information of a vehicle body and a bogie and state information of the shock absorber body, and generating a control signal according to the relative motion information, the state information and a variable damping instruction after receiving the variable damping instruction of a vehicle main controller; the control signal is sent to the electromagnetic valve so as to control the electromagnetic valve to be switched on or switched off, hydraulic oil in the working cylinder flows when the electromagnetic valve is switched on or switched off, so that the damping valve is switched on or switched off, and the unloading valve is automatically switched on when the actual damping force reaches the unloading force.

The invention provides a foot pad structure and a compressor, the foot pad structure comprises a main body, a plurality of first cavities are arranged in the main body, the plurality of first cavities are sequentially arranged along the circumferential direction of the main body, a balance assembly is arranged on the main body, the balance assembly is used for judging whether the stress of the main body is balanced or not, and the balance assembly is used for balancing the stress of the main body. According to the judgment result of the balance assembly, one or more of the multiple first cavities can conduct air pressure adjustment. According to the compressor foot pad, the technical problem that in the prior art, a compressor foot pad cannot meet the vibration reduction requirements under various working conditions, and consequently the noise of a compressor is large can be solved.

The utility model relates to the field of power electronic equipment, and discloses a fan mounting structure of power electronic equipment and the power electronic equipment comprising the fan mounting structure. The draught fan installation structure comprises a machine box and a draught fan vibration reduction structure assembly, a ventilation opening is formed in the machine box, the draught fan vibration reduction structure assembly comprises a draught fan, a vibration reduction structural part and a fastener, and the vibration reduction structural part is provided with a ventilation opening, a fixing hole and an installation hole corresponding to a fan of the draught fan. The fan is fixed on the vibration reduction structural member through the fixing hole by a fastener to form a fan vibration reduction structural component, and the fan vibration reduction structural component is mounted at the ventilation opening of the case through the mounting hole by a fastener. The fan vibration reduction structure assembly is fixed to the case shell, vibration is effectively reduced, and the fan vibration reduction structure assembly has the advantages of being simple in structure and convenient and fast to install and maintain. The utility model also discloses power electronic equipment comprising the structure.

The utility model relates to the technical field of new energy automobile compressors, and particularly discloses a vibration-damping electric compressor shell structure which comprises a main shell and a reinforcing rib, the reinforcing rib is fixedly connected with the main shell and located at the lower end of the main shell, the main shell is provided with a plurality of screw mounting holes, the screw mounting holes are formed in the peripheral side of the main shell respectively, and the reinforcing rib is fixedly connected with the main shell and located at the lower end of the main shell. The main shell is further provided with a plurality of receding holes, and the receding holes are formed in the peripheral side of the main shell. And the overall structure is reinforced, so that the denaturation resistance of the overall structure is enhanced, the resonance risk is reduced, the effective vibration reduction and noise reduction effects can be achieved, vibration force is dispersed, and stress and vibration force concentration is prevented.

The invention relates to the technical field of damping thrust bearings of submersible vehicles, in particular to a seawater pressure compensation device for a damping thrust bearing. According to the seawater pressure compensation device structure, the external environment water pressure of the submersible vehicle can be flexibly conducted to an internal hydraulic system, hydrostatic thrust balance of the vibration reduction thrust bearing is achieved, and the seawater pressure compensation device structure has important significance on full-depth effective vibration reduction of the vibration reduction thrust bearing; the seawater pressure compensation device has displacement monitoring and alarming functions, an operator can be timely and effectively reminded, and function loss of the compensation device caused by pipeline corrosion and leakage in the external environment water pressure transmission process is avoided; the self-sealing submersible vehicle has a self-sealing function under extreme conditions of pipeline damage and the like, and can prevent a large amount of water from entering the submersible vehicle under the extreme conditions to damage the use safety of the submersible vehicle.

The invention provides an electronic device. The electronic device comprises a machine shell, a hard disk, at least one fan and at least one vibration reduction structure. The hard disk is arranged in the case. The at least one fan is arranged in the machine shell. The at least one damping structure is located between the hard disk and the at least one fan and comprises an elastic piece, a first mass block, at least one compression spring and at least one second mass block. The elastic sheet comprises two mounting parts and a bending part. The two installation parts are installed on the machine shell. The two opposite ends of the bending part are connected to the two installation parts respectively. The distance between the middle section of the bending part and the casing is larger than the distance between the two opposite ends of the bending part and the casing. The first mass block is arranged at the middle section of the bending part. One end of at least one compression spring is arranged on one of the two mounting parts. One end of the at least one second mass block is connected to the other end of the at least one compression spring. According to the vibration reduction structure, the low assembly cost and the vibration reduction effect can be achieved at the same time.

The application provides an impact-resistant damper. The impact-resistant damper comprises an eddy current damping unit and a buffer damping unit. The eddy current damping unit comprises a ball screw drivingly connected with a controlled structure and a fixed outer sleeve arranged outside the ball screw. The buffer damping unit comprises a resilient stiffness member arranged close to a driving connection end of the ball screw. One end of the resilient stiffness member is sleeved outside a screw rod of the ball screw, and the other end of the resilient stiffness member is connected with the outer sleeve. When the controlled structure reaches a preset displacement value or a preset impact value, one end of the resilient stiffness member is deformed to start the buffer damping unit. The application has the advantages of guaranteeing the vibration reduction and impact resistance effect of the controlled structure under large displacement and impact, compact structure and the like.

The utility model discloses a kind of damping devices for rotating parts, including shell and the base connected with shell lower end, damping liquid is contained in shell, sealing body is equipped in shell upper center position, rotating shaft is rotationally connected in the center position of shell upper portion, damping plate is fixedly connected in the lower end of rotating shaft, the lower portion of damping plate is fixedly connected with the damping piece of several radial directions along damping plate, the upper portion of base is fixedly provided with the fixed piece of several staggered settings with damping piece. The utility model and through damping piece and damping plate reduce the speed of rotating shaft, complete the damping vibration reduction effect, and change the original friction damping into the damping mode of high viscosity liquid, completely eliminate the wear of damping original piece, reduce the high temperature generated by friction, improve the service life of damper and rotating part, and avoid the problem that rotating part generates vibration, can effectively reduce the vibration of rotating part.

The utility model discloses an annular nonlinear energy trap device for reducing vibration of a cable-stayed bridge cable, which comprises a stay cable, a mounting mechanism is mounted in the middle of the stay cable, and an annular mass block is arranged on the outer side of the mounting mechanism. The device can effectively reduce the vibration of the stay cable in any direction through the synergistic effect of the damper and the connecting spring within the range of 0-2 pi of the annular mass block, and the annular mass block vibration reduction device has the advantages that the frequency robustness is high, the excellent broadband vibration reduction capacity is shown, the vibration energy of a main body structure can be effectively captured, and the vibration of the stay cable in any direction can be effectively reduced. According to the stay cable damping device, the damping component is arranged on the stay cable and transfers the damping component to the stay cable, finally energy dissipation is carried out through the damping component, efficient damping of the stay cable can be achieved only through the single annular structure, and therefore the damping performance is improved, material use optimization is achieved, and economic cost is reduced at the same time.

The present application provides a fixing clamp assembly and a heat exchange system having the same, including a fixing structure and a mounting structure, wherein the fixing structure is used to fix a structure to be fixed; the number of fixing structures is set to at least two; a first vibration reduction structure is set between two adjacent fixing structures; the mounting structure includes a first mounting structure and a second mounting structure; one of the two adjacent fixing structures is the first fixing structure, and the other fixing structure is the second fixing structure; the first fixing structure is connected to the first mounting structure, the second fixing structure is connected to the second mounting structure, and the first mounting structure is slidably connected to the second mounting structure. According to the fixing clamp assembly of the present application and the heat exchange system having the same, the vibration of the structure to be fixed can be effectively reduced.