40results about How to "Reduce or eliminate vibration" patented technology

The invention relates to a gyroscope holder of an unmanned aerial vehicle. The gyroscope holder comprises a gyroscope part and a camera part, wherein a gyroscope bracket is composed of an inner frame and an outer frame with the same diameter, a mechanical gyroscope is fixed on the inner frame, a driving wheel is fixed at the end part of an output end of a rotating shaft; a central shaft at an axial side of the holder bracket extends out of the holder bracket, a camera frame with a front opening is fixedly mounted at the end part of the central shaft to be coaxial with the central shaft, a driven wheel is fixedly mounted at the end part of a hinged shaft of a camera support; the driving wheel of the outer frame of the gyroscope part and the driven wheel of the camera support of the camera part are in the same direction, and two synchronous transmission rods are articulately mounted on the surface of an axial disk of the driving wheel, to be in symmetry along the axial direction. The gyroscope holder provided by the invention has a simple and reliable structure and good stability, is easy to regulate and control, has a wide range of applications, and can effectively eliminate shakesin the shooting process, maintain the picture stable, lock the shooting object, obtain clear pictures with high quality and effectively improve the shooting quality.

The invention discloses an elevator car damping structure. The elevator car damping structure comprises a car body; the car body comprises an outer shell and an inner shell; a car liner is fixedly mounted at the bottom end in the inner shell through a spring damper; a hydraulic damper is fixedly mounted at the middle part of the top of the outer shell; a connecting block is integrally mounted at the top of the hydraulic damper; a fixed block is slidingly connected to the top corner of the inner shell; a support rod is hinged between the fixed block and the connecting block; limiting plates arefixedly mounted on the two sides of the top end in the inner shell; force return springs are fixedly mounted among the fixed block, the limiting plates and the inner wall of the inner shell; and pneumatic dampers are fixedly mounted between the bottoms of the limiting plates and the car liner. The elevator car damping structure is simple and reasonable in structural design, convenient to operate,excellent in damping effect and stable in safety, reduces the shaking and the noise, reduces the overload and underload feeling, and improves the elevator passenger comfort.

The invention discloses a beating dust removal device for leatherworking. The beating dust removal device comprises a machine body. A mounting plate is fixedly connected to the inner wall of the machine body. A support is fixedly connected to the top of the mounting plate. The left side of the support is fixedly connected with a supporting rod. The right side of the support is fixedly connected with a connecting rod. A first adjusting rod is hinged to one side of the support through a pin shaft. According to the beating dust removal device, through the arrangement of a first motor, a connecting shaft and a rotating rod, by means of operation of the first motor, a driving gear is driven by a rotary shaft to rotate, the driving gear is engaged with a driven gear, and therefore the connectingshaft and the rotating rod are driven to rotate; a third adjusting rod is driven by the rotating rod to rotate, a lifting rod is driven to operate up and down through transmission of a second adjusting rod, and left-and-right swing of the first adjusting rod is driven by motion of the second adjusting rod; and buffering of a spring to the swing force (amplitude) and the opposite acting force of the spring to the first adjusting rod are adjusted, the swing frequency of the first adjusting rod is improved, and therefore the lifting frequency of the lifting rod is improved, and the dust removalefficiency is improved.

The invention discloses a precision static pressure linear guide rail, which is provided with a bed piece and a sliding base for placing workpieces, wherein the bottom surface of the sliding base is fixedly provided with a sliding block, and a groove with a downward opening is formed in the sliding block; the position, which corresponds to the groove of the sliding block, on the bed piece is fixedly provided with a guide rail which can be embedded into the groove of the sliding block; and the inner peripheral wall of the groove of the sliding block is provided with a plurality of lubrication grooves which are combined with the guide rail to form a lubrication chamber, the inside of each of the lubrication grooves is provided with a sealing element, and the lubrication grooves are communicated with an oil supply mechanism through oil channels. Each oil channel for supplying oil for the lubrication grooves is provided with a check valve. The sealing element arranged in the lubrication groove comprises a guide rail plate, a metal frame and an O-shaped sealing ring, the guide rail plate is arranged on one side, which is close to a base surface of the guide rail, in the lubrication groove, the metal frame is arranged between the guide rail plate and the groove bottom of the lubrication groove, and the O-shaped sealing ring is embedded into a sealing groove formed on the metal frame. The precision static pressure linear guide rail only needs an oil source with small capacity to intermittently work, and radically eliminates heating phenomenon.

The invention relates to a damper for wind power generation. The damper for wind power generation comprises a cylinder body and further comprises a damping friction plate with the self-lubricating performance. One face of the damping friction plate is fixed to the lower end of the cylinder body in a bonded or embedded manner. The other face of the damping friction plate is pressed on a connectingring plate of a tower cylinder. The damper has the beneficial effects of being simple in structure, stable in friction damping, low in cost and long in service life.

Provided is a motorized power steering device which is equipped with a structure wherein it is possible to prevent the occurrence of stick-slip between the outer peripheral surface of a rotation shaft (13) and the inner peripheral surfaces of the inner races (20a, 20b) of anti-friction bearings (19a, 19b). For this purpose, lubricant (24) or an elastic member (25) is interposed between the outer peripheral surface of the rotation shaft (13) and the inner peripheral surface of at least either one of the inner races (20a, 20b). In a case where the lubricant (24) is to be additionally interposed on the rotation shaft (13), the pertinent portion is provided with recessed surfaces which hold the lubricant (24).

The invention provides a trolley limiting device of a magnetic suspension railroad switch. The trolley limiting device comprises a limiting component which is connected with a trolley foundation plateand a limiting shaft connected with a trolley crossbeam, wherein the free end of the limiting component is located on the free end of the limiting shaft, and is provided with a part which can be in contact with the free end of the limiting shaft. Through the adoption of the trolley limiting device disclosed by the invention, vibration generated on a trolley and a railroad switch beam when a magnetic suspension train passes can be reduced or removed; and the trolley limiting device is simple in structure and convenient to mount and maintain, so that the cost is low.

Disclosed is a current varying control method of double-coil of permanent mechanisms of vacuum circuit breakers. In closing process, a trip coil is reversely galvanized to offset a part of permanent magnet retaining force, to reduce closing action current, simultaneously adjust the current of a closing coil, and reduce iron core kinetic energy on the premise of ensuring instantaneous closing speed. In switching off time, the trip coil is directly galvanized, the closing coil is reversely galvanized or the trip coil is directly galvanized and the closing coil is directly galvanized. Voltage and current of the trip coil and the closing coil are sampled by a coil current measuring module, and collected data is fed back to a central control module. A central treatment module calculates rate of current change in current coils and adjusts current value in the trip coil according to calculated result. The invention adjusts current amplitude in coils by sampling feedback of current and voltage of the trip coil and the closing coil of a permanent mechanism, and enables the operating characteristic of the permanent mechanism and the spring load characteristic of the circuit breaker to realize ideal engagement.

The invention provides a dynamic balance adjusting device for a roll shaft. The dynamic balance adjusting device comprises a counterweight ring sleeved on the roll shaft, and a cylindrical cavity radially arranged on the counterweight ring. A rod-free piston is arranged in the cylindrical cavity, a water injection passage is arranged at one end of the cylindrical cavity, the water injection passage is communicated with the water injection port arranged on the outer surface of the counterweight ring, a water valve is arranged on the water injection port, the water injection passage side of the rod-free piston is filled with water, and the non-water-injection passage side of the rod-free piston is filled with air. Water is used as a counterweight, weight of the counterweight can be adjusted infinitely, and accordingly a dynamic balance index of the roll shaft is more accurate.

The invention relates to a cable pipeline structure in a spacecraft ventilating duct. The cable pipeline structure comprises a flange (1) and a connecting pipe (2), wherein the flange comprises a base(11) and a main body (12); the connecting pipe (2) is a hose with two layers of high-temperature resistant cloth; the connecting pipe (2) sleeves the main body (12), and the connecting pipe (2) and the main body (12) are fastened through a nylon ribbon. Through holes on the side wall communicate with the flange, and the hose and the flange are fastened through the nylon ribbon, so that the wholecable pipeline structure and the ventilating pipeline are mutually isolated, and the gas leakage in the ventilating pipeline is avoided; therefore, the airtightness of the whole ventilating pipeline is guaranteed.

The invention provides a damping device for mechanical equipment. The damping device for the mechanical equipment is simple and reasonable in structural design, can achieve the damping effect, improvethe damping effects and also can achieve the effect of stabilizing the equipment at the same time. The bearing capacity of the damping device can be adjusted according to the change of weights of different kinds of equipment, and the use flexibility can be greatly improved. The damping device for mechanical equipment comprises a lower plate and an upper plate. A damping mechanism is fixedly installed between the lower plate and the upper plate and comprises hydraulic dampers and a compressed air bin. An air inflation connector is welded to one side face of the compressed air bin. A damping column is welded to the middle of the top end face of the upper plate. Damping grease is arranged in the damping column. A bolt fixing hole is formed in the middle of the damping column.

The invention discloses a safety and environment-friendly cutting machine, which comprises a workbench, four outriggers are evenly and symmetrically arranged at the bottom of the workbench, a shock absorbing device is arranged at the bottom of the outriggers, and the top of the workbench is fixedly arranged sequentially from left to right The material propulsion device, the first material fixing device, the cutting device and the second material fixing device, the cutting device includes a cutting box and a cutting mechanism inside the cutting box. The beneficial effects of the invention are: when the cutting machine is working, the sparks and noises generated when the cutting saw is in contact with the material to be cut are greatly reduced or eliminated, and the metal or non-metal waste generated by cutting will not spread around, threatening The health of the staff, at the same time, the setting of the shock absorbing device makes the cutting machine work, the maximum reduction or elimination of the vibration of the cutting machine, thereby avoiding the damage of the internal parts of the cutting machine, which greatly prolongs the life of the cutting machine. service life.

The present invention relates to a process pump having a crank drive (1) and having at least three cylinders, which, as viewed clockwise or counterclockwise about the crank drive (1), constitute a first cylinder, a second cylinder and a third cylinder, wherein the crank drive (1) has a vertical crankshaft and, for each cylinder, in each case one crosshead (7, 10, 13) and one connecting rod (8, 11, 14) with in each case one large connecting-rod eye (8a, 11a) for receiving the crankshaft, wherein the crossheads (7, 10, 13) are functionally connected to the crankshaft via the connecting rods (8, 11, 14). The invention is distinguished by the fact that the crankshaft is in the form of an eccentric shaft (5) with a first eccentric and a second eccentric, wherein the connecting rod (8) of the first cylinder and the connecting rod (14) of the third cylinder are arranged on the first eccentric, and wherein the connecting rod (11) of the second cylinder is arranged on the second eccentric, such that the large connecting-rod eye (8a) of the connecting rod (8) of the first cylinder and the large connecting-rod eye of the connecting rod (14) of the third cylinder have a common central axis.

This invention relates to a guide wire device when electric spark line cutting machine tool, which comprises retaining bracket and godet block, wherein the godet block is fixed in the retaining bracket, and on the surface of the godet block it has a couple of symmetrical camber intersecting to a V form slot in the bottom of the camber. Said invention has several merits as follows: a, it can eliminate or decrease the shake when the electrode line entering into the processing area, which ensures the stability of the electrode line in the processing area; b, the godet block is fixed, which avoids creating new shaking source; c, it divides the godet block into two same small units to produce.

The invention belongs to the technical field of power equipment, and provides a novel motor with a damping effect. The novel motor comprises a motor body. A bottom plate is arranged at the bottom of the motor body. Four corners of the bottom of the bottom plate are movably connected with one end of a telescopic device respectively, and the other end of the telescopic device is fixedly connected with a damping base. Each telescopic device is sleeved by an elastic device. One end of each elastic device is a free end, and the other end is fixedly connected with the damping base. Accommodating cavities are arranged at four corners of the damping base. Each accommodating cavity accommodates a telescopic device. Landing rods are movably arranged at four corners of the bottom plate. According tothe novel motor with the damping effect, the motor can be protected from vibration or collision through the damping protection design; the safety performance is improved; friction between a large shaft and a bearing is reduced; the temperature of equipment is reduced; and the service life of the motor is extended.

The invention discloses a leaky coaxial cable clamp mechanism and a leaky coaxial cable bearing system.The leaky coaxial cable clamp mechanism comprises a bearing support, a main clamp and at least two auxiliary clamps, the bearing support is fixed to an installation wall body, the main clamp and the at least two auxiliary clamps are all fixed to the bearing support, the at least two auxiliary clamps are arranged on the two sides of the main clamp at intervals, and the main clamp and the at least two auxiliary clamps are fixed to the bearing support. The auxiliary clamp can generate elastic deformation in the vibration state of the leaky coaxial cable so as to have a damping and buffering effect, and the main clamp is fixed relative to the bearing support in the vibration state of the leaky coaxial cable. According to the leaky coaxial cable clamp, the bearing requirement of the leaky coaxial cable can be met, the installation number of the leaky coaxial cable clamp mechanisms is effectively reduced, the situation that the bearing support is loosened due to the fact that the stress between the bearing support and the installation wall body is influenced by vibration can be avoided, the influence of the vibration on the stress between the main clamp and the leaky coaxial cable can be relieved or eliminated, larger clamping force can be applied to the leaky coaxial cable, and the leaky coaxial cable is prevented from being damaged. Therefore, the leaky coaxial cable is prevented from loosening, the safety performance is effectively improved, and axial displacement of the leaky coaxial cable under the action force of the tunnel wind tunnel effect is reduced or eliminated.

The invention provides a magnetic latch, a vehicle container and a system. A magnetic latch for a lid and a bin of a container in a vehicle includes at least one overmolded magnet removably connected to the lid. The metal portion is magnetically attracted by the overmolded magnet. At least one over-molded magnet is connected to the box having a magnetic attraction with the cover over-molded magnet to magnetically open and close the cover and the box of the container. An overmold on the magnet encapsulates the magnet with a vibration damping material, such as rubber. The metal portion may be a second at least one overmolded magnet. The container can be a central control board, a glove box, an ashtray, a luggage box, a skylight sunshade curtain and a cover. A lance, clip, fork, or other suitable fastener may be formed on one side of the overmold to allow insertion and attachment to a corresponding hole in the cover.

The invention discloses an adjustable damping type Cs axis continuous machining stabilizing device. The adjustable damping type Cs axis continuous machining stabilizing device comprises a mounting bracket. A hydraulic tank and a hydraulic motor are arranged in the mounting bracket. The hydraulic tank is connected with the hydraulic motor. A main shaft is arranged on the middle portion of the mounting bracket and penetrates through the mounting bracket. A brake disc is arranged on the end portion of the main shaft, and a braking damping device is connected to the brake disc and connected with the hydraulic tank. The hydraulic motor is connected with a pressure reducing valve connected with a reversing valve. The adjustable damping type Cs axis continuous machining stabilizing device is reasonable in design and simple in structure. By adjusting the pressure of a clamping device to make a mechanism generate certain damping, the vibration during Cs axis interpolation operation can be reduced or eliminated. The adjustable damping type Cs axis continuous machining stabilizing device is convenient to install and use, low in price and wide in application prospect.

The invention discloses a low noise frequency converter. The low noise frequency converter comprises, a passive filter, a prime amplifier, a prime mixer, an active filter, a second-level amplifier, a mixer, a final amplifier and an alternating current reactor which are sequentially connected, the prime mixer is connected with a fourth-level amplifier and a radiator, a frequency synthesizer is further connected to the fourth-level amplifier, and the frequency synthesizer is also connected with a power divider; the mixer is also connected with the radiator and a third-level amplifier, the third-level amplifier is also connected with a lock-in amplifier, the lock-in amplifier is also connected with the power divider, and the power divider is connected with a local oscillator providing 10 MHz signals. By means of the above principles, the low noise frequency converter can reduce noise, avoid damage of other mechanical components caused by vibration and reduce temperature to avoid overhigh temperature of the device and further enables the electronic element to work more stably.

An anti-tremor tool, an anti-tremor device thereof, and an auxiliary holding device are disclosed. The anti-tremor device includes a tool unit, a carrying portion, and an anti-tremor module. The toolunit is mounted on the carrying portion. The anti-tremor module is disposed on the carrying portion. The anti-tremor module includes a rotary transmission mechanism and a control module. The control module includes a sensing unit and a control unit. The sensing unit is coupled to the control unit, and the control module is coupled to the rotary transmission mechanism. When the sensing unit sensesthe tremor of the carrying portion, the control unit controls the rotary transmission mechanism to increase the inertia of the anti-tremor module to eliminate or reduce the tremor of the carrying portion.

The invention discloses a damping method used for a lift car. The method comprises the steps that S1, an outer shell and an inner shell of a lift car body are fixed to pneumatic dampers through damping spring pieces between the outer shell and the inner shell, and the inner shell and a lift car liner of the lift car body are fixed to the pneumatic dampers through spring dampers between the inner shell and the lift car liner; S2, when the lift car is in an ascending acceleration state, a hydraulic damper is stretched; S3, when the lift car is in an ascending deceleration state, the hydraulic damper is contracted; S4, when the lift car is in an descending acceleration state, the lift car liner can be in a weightlessness state; and S5, when the lift car is in an descending deceleration state,the lift car liner can be in a hypergravity state, and the damping capacity and stability of the lift car liner can be improved through the functions of the spring dampers and the pneumatic dampers.Through the damping method, the damping effect is good, safety and stability are achieved, shake and noise are reduced, the feelings of hypergravity and weightlessness are reduced, and comfort of liftpassengers is improved.

The invention relates to a gyroscope holder of an unmanned aerial vehicle. The gyroscope holder comprises a gyroscope part and a camera part, wherein a gyroscope bracket is composed of an inner frame and an outer frame with the same diameter, a mechanical gyroscope is fixed on the inner frame, a driving wheel is fixed at the end part of an output end of a rotating shaft; a central shaft at an axial side of the holder bracket extends out of the holder bracket, a camera frame with a front opening is fixedly mounted at the end part of the central shaft to be coaxial with the central shaft, a driven wheel is fixedly mounted at the end part of a hinged shaft of a camera support; the driving wheel of the outer frame of the gyroscope part and the driven wheel of the camera support of the camera part are in the same direction, and two synchronous transmission rods are articulately mounted on the surface of an axial disk of the driving wheel, to be in symmetry along the axial direction. The gyroscope holder provided by the invention has a simple and reliable structure and good stability, is easy to regulate and control, has a wide range of applications, and can effectively eliminate shakesin the shooting process, maintain the picture stable, lock the shooting object, obtain clear pictures with high quality and effectively improve the shooting quality.

The invention relates to a cable pipeline structure in a spacecraft ventilating duct. The cable pipeline structure comprises a flange (1) and a connecting pipe (2), wherein the flange comprises a base(11) and a main body (12); the connecting pipe (2) is a hose with two layers of high-temperature resistant cloth; the connecting pipe (2) sleeves the main body (12), and the connecting pipe (2) and the main body (12) are fastened through a nylon ribbon. Through holes on the side wall communicate with the flange, and the hose and the flange are fastened through the nylon ribbon, so that the wholecable pipeline structure and the ventilating pipeline are mutually isolated, and the gas leakage in the ventilating pipeline is avoided; therefore, the airtightness of the whole ventilating pipeline is guaranteed.

The invention provides a noise reduction type water seal for an automobile water pump. The water seal comprises a movable ring assembly and a static ring assembly; a first outer side ring extending outwards in the radial direction of a shaft sleeve is arranged at one end of the shaft sleeve, an installation base is arranged at the end, away from the first outer side ring, of the shaft sleeve in a sleeving mode, a second outer side ring extending outwards in the radial direction of the installation base is arranged at the end, away from the first outer side ring, of the installation base, and a first annular ring extending towards the first outer side ring is arranged on the outer edge of the second outer side ring; a moving ring is arranged on the outer side of the shaft sleeve in a sleeving mode; an inner sleeve is arranged on the outer side of the installation base in a sleeving mode; a static ring is arranged on the outer side of the inner sleeve in a sleeving mode and abuts against the moving ring; an outer sleeve is arranged on the outer side of the static ring in a sleeving mode; a corrugated rubber pipe is arranged in the gap among the installation base, the inner sleeve, the static ring, the outer sleeve and an inner side ring; and an elastic noise-reducing ring is arranged in the gap between the outer sleeve and the installation base. According to the water seal, the metal elastic noise-reducing ring is additionally arranged in the gap between the outer sleeve and the installation base to reduce or eliminate vibration, and therefore noise can be avoided or lowered to be lower than the human ear hearing range.

An aircraft, comprising a fuselage, a sensing assembly and a supporting part arranged in the fuselage, and the fuselage includes a main casing. The main casing includes a bottom wall and a side wall connected with the bottom wall, and the side wall and the bottom wall jointly enclose a receiving space. The sensing component and the support are accommodated in the accommodation space, the support is connected to the bottom wall, the sensing component is arranged on the support and has a gap with the side wall . The aircraft will use a support to arrange the sensing assembly on the bottom wall of the fuselage and keep a gap between the sensing assembly and the side wall of the fuselage, which can effectively reduce or eliminate the parallel motion of the sensing assembly. Vibration in the direction of the bottom wall.

A manual height-adjustment mechanism (MHAM) for a vehicle driveshaft, includes a movable bracket assembly configured to attach to the driveshaft and a vehicle cross-member; and a user input device remotely located with respect to the movable bracket assembly, configured to control the movable bracket assembly.

The purpose of the present invention is to propose a helical end mill that can reduce or eliminate harmonic vibration generated during processing, thereby improving processing quality and processing efficiency. The helical end mill of the present invention includes a shank and a cutting edge, and the cutting edge is provided with a plurality of parabolic side cutting edges along its own axial direction. The key point is that the helical angles of the plurality of side cutting edges are different. During the machining process, multiple side edges with different helix angles can generate a cutting motion of a different phase, thereby preventing the generation of resonance, thereby reducing or eliminating the vibration during machining, reducing the wear of the tool, and improving the cutting performance. Workpiece surface finish. The helical end mill of the present invention reduces or eliminates the harmonic vibration generated during processing by setting the unique helix angle and spacing of the side cutting edge, so it can perform high-speed processing or high-efficiency cutting, and the surface quality of the processed workpiece is stable and reliable. Tool life is increased by 28%, resulting in lower machining costs.

The invention provides a dynamic balance adjusting device for a roll shaft. The dynamic balance adjusting device comprises a counterweight ring sleeved on the roll shaft, and a cylindrical cavity radially arranged on the counterweight ring. A rod-free piston is arranged in the cylindrical cavity, a water injection passage is arranged at one end of the cylindrical cavity, the water injection passage is communicated with the water injection port arranged on the outer surface of the counterweight ring, a water valve is arranged on the water injection port, the water injection passage side of the rod-free piston is filled with water, and the non-water-injection passage side of the rod-free piston is filled with air. Water is used as a counterweight, weight of the counterweight can be adjusted infinitely, and accordingly a dynamic balance index of the roll shaft is more accurate.