291 results about "Transverse vibration" patented technology

The invention discloses a nickel-based alloy additive manufacturing method for high-frequency ultrasonic dynamic forging printing. The method comprises the steps that nickel-based alloy powder and a base plate are pretreated; scanning the nickel-based alloy powder layer by layer through laser to form a molten pool; in the machining process of each layer, when the temperature of the molten pool ranges from 1000 DEG C to 1400 DEG C, ultrasonic waves are activated to generate compound vibration; the composite vibration comprises axial vibration and transverse vibration; when the ultrasonic vibration phase difference reaches a preset first interval, short pulse laser is triggered; the ultrasonic vibration phase difference is a phase deviation between an ultrasonic vibration waveform and a pulse laser shock triggering moment; and until all layers are machined, a formed part is obtained. According to the scheme, the dislocation density is improved, secondary grain refinement and bubble escape are achieved, and interlayer stress redistribution is made uniform.

The utility model discloses a wafer processing device, and belongs to the technical field of semiconductors. The wafer processing device comprises a carrying table, a shock insulation pad and an ultrasonic device, wherein the carrying table is used for carrying a crystal ingot with a modified layer; the ultrasonic device is arranged above the carrying table, the ultrasonic device can generate transverse vibration waves, and the transverse vibration waves are used for vibrating along the crystal ingot and enabling cracks of the modified layer to extend in the transverse direction; and the bottom of the carrying table is fixedly arranged on the shock insulation pad. According to the utility model, the cracks of the modified layer formed on the crystal ingot by the laser pulse grow and are connected along the transverse direction, the longitudinal growth of the cracks is avoided, the production efficiency of the modified layer is improved, the laser pulse does not need to be intensively emitted, and the wafer processing period is shortened.

The embodiment of the invention provides a simple system for simulating fluctuating motion of ocean conditions, and relates to the field of ocean-related simulation experiments. The device comprises a base, a translation seat, a stand column, a top beam, a lifting seat, a simulation water tank and a transverse vibration mechanism, the translation seat is installed on the base, the stand column is installed on the translation seat, the top beam is installed at the top end of the stand column, the lifting seat is installed on the stand column in a sliding mode, and the simulation water tank is installed on the lifting seat; the translation seat is mounted on the base through a transverse vibration mechanism, and the transverse vibration mechanism can enable the translation seat to do transverse reciprocating motion. Transverse waves can be generated, and corresponding wave fluctuation can be simulated; meanwhile, longitudinal waves can be generated, so that wave fluctuation generated by the longitudinal waves is simulated; the equipment has the two capabilities at the same time, can be selected according to requirements, and is high in universality. In addition, the device can enable the liquid to quickly recover calm, facilitates the switching of different seismic source modes for simulation testing, and improves the efficiency.

This invention discloses a magnetorheological vibration isolator with negative stiffness characteristics, comprising a magnetorheological elastomer (MRE), an iron sheet, a circular magnet, a cylindrical central shaft, an electromagnetic coil, upper and lower base plates, an outer sleeve, and a bar magnet. The MRE, iron sheet, and circular magnet form a multi-layered MRE structure, with the circular magnet providing a portion of the initial magnetic field to the MRE. The electromagnetic coil, located between the multi-layered MRE structure and the outer sleeve, can control the magnetic field strength acting on the MRE in real time, thereby controlling the stiffness and damping of the MRE isolator. The bar magnet and magnet brackets form a negative stiffness generating unit, respectively installed on both symmetrical sides of the isolator. This invention introduces negative stiffness characteristics into a semi-active vibration isolator, improving the vibration reduction effect of semi-active control to the level of active control, while also offering good stability and low system cost. This invention can be applied to lateral vibration control in high-speed trains, improving stability and safety during high-speed operation, and has broad application prospects.

The present invention belongs to the technical field of plant pollination devices, and particularly relates to a handheld electric fruit tree pollinator and a pollination method. The handheld electric fruit tree pollinator includes: a depth camera (1), a lateral vibration motor (2), a lateral vibration motor cover (3), a solenoid valve (4), a solenoid valve cover (5), a sealing ring (6), a filter screen (7), a filter screen connecting piece (8), a fluff brush connecting piece (9), a fluff brush (10), a longitudinal vibration motor cover (11), a longitudinal vibration motor (12), a powder chamber cover (13), a powder chamber (14), an elastic rod (15), a screw (16), a multi-joint arm hand rod (17), and an intelligent controller (18); the present invention is convenient to carry and simple to operate; the solenoid valve is closed in the non-working state, reducing pollen waste; based on the pollination principle of insects (bees), the pollen is charged with static electricity through the fluff brush and high-frequency vibration, improving the pollination success rate and reducing the damage to the inflorescence.

The invention relates to the technical field of transformer vibration testing, and discloses a transformer vibration testing device and method.The transformer vibration testing device comprises a transverse vibration mechanism, a vertical vibration mechanism and a rack mechanism, according to an occasion needing simulation, an inclined rack is controlled to obliquely swing around a first horizontal axis to a set inclination angle relative to a rotary rack, and the inclined rack is driven to rotate; meanwhile, the tool rack is controlled to obliquely swing around a second horizontal axis to a set inclination angle relative to the inclined rack, so that the transformer is controlled to obliquely swing around a first horizontal axis and the second horizontal axis, coupling inclined swing control is achieved, and the transformer can swing to a set inclination posture in any direction in a three-dimensional space; the rotating rack is driven by the rotating driving structure to rotate relative to the vertical vibration table so as to drive the transformer to rotate, excitation vibration on the periphery of the transformer can be achieved in a rotating mode under driving of the transverse vibrator, and the testing cost can be reduced.

The invention relates to the technical field of insulator fault early warning, in particular to an insulator mechanical pulse electrification early warning system. The system comprises a pulse signal acquisition module which is used for setting sampling points at equal intervals at each height of an insulator and acquiring vibration pulse signals of the sampling points; the vibration abnormity identification module is used for determining the transverse vibration abnormity degree and the longitudinal vibration abnormity degree of the vibration pulse signal of each sampling point; the pulse signal denoising early warning module is used for acquiring a standard comprehensive abnormal index of the vibration pulse signal of each sampling point; identifying the non-low-frequency energy intensity of the vibration pulse signal of each sampling point, and adjusting a fixed threshold value in a wavelet denoising algorithm in combination with the standard comprehensive abnormal index so as to perform defect early warning on the insulator by using the denoised vibration pulse signal; according to the invention, the accuracy of defect early warning of the insulator is improved.

The utility model discloses a multi-dimensional vibration manufacturing test device which comprises a vibration plate, the lower end face of the vibration plate is fixedly connected with a fixing frame, the upper end face of the fixing frame is fixedly connected with a vibration motor, the upper end face of the vibration plate is slidably connected with a second sliding plate, the upper end face of the second sliding plate is slidably connected with a first sliding plate, and the upper end face of the first sliding plate is fixedly connected with a positioning block. The upper end face of the positioning block is fixedly connected with a driving motor, the output end of the driving motor is connected with a rotating shaft, the outer wall of the rotating shaft is fixedly connected with a cam, the whole vibration plate vibrates through operation of the vibration motor, and vibration testing of products on the mounting plate is achieved; the cam is in contact with the movable block in the rotating process and abuts against the movable block to move up and down in a reciprocating mode, the first sliding plate drives the mounting plate to conduct transverse vibration testing, the second sliding plate drives the mounting plate to conduct longitudinal vibration testing, multi-dimensional vibration of the vibration testing device is effectively achieved, and the using flexibility of the device is improved.

The invention provides an ultra-deep well large annulus flexible righting transverse vibration reduction method, which belongs to the technical field of well drilling and drilling, and comprises the following steps of: inputting pre-drilling well drilling engineering information, and calculating a whole well section drill string vibration distribution form based on an established drill string finite element dynamic model; the tripping-in positions and the number of the flexible stabilizers and the layer number and the compression space of plate springs in the flexible stabilizers are designed, and an initial vibration reduction scheme is generated; comparing the real-time vibration data with the predicted vibration distribution pattern, carrying out real-time risk assessment, carrying out dynamic optimization on the initial vibration reduction scheme according to the real-time risk assessment, adjusting the tripping-in position and number of flexible stabilizers, the number of plate spring layers and the compression space, and generating an optimized real-time vibration reduction scheme; a flexible stabilizer is put in the designated position of the drill column; when the drill column transversely vibrates and collides with the well wall, the buffer block of the flexible stabilizer is pressed, the plate spring is driven to generate radial elastic deformation, part of radial impact kinetic energy is converted into elastic potential energy of the plate spring to be stored, and radial vibration reduction is achieved.

The present invention discloses a micro-friction and wear testing device and method for aviation transmission components, which belongs to the field of aerospace manufacturing. The device comprises a support assembly, an axial force loading assembly, a lateral vibration assembly, a first test piece and a second test piece. The support assembly comprises a vibration platform, a first support and a second support, the first support is fixed on the vibration platform, the axial force loading assembly comprises a sliding plate, a servo motor, a lead screw and a nut, the sliding plate is slidably connected to the vibration platform, the servo motor is connected to the lead screw, the nut is fixedly connected to the sliding plate, and the second support is fixed on the sliding plate; the lateral vibration assembly comprises a variable frequency motor, an eccentric wheel, a connecting rod, a vibration rod and a limit plate, the variable frequency motor is fixed on the sliding plate, the eccentric wheel comprises a rotating shaft and an eccentric shaft, the variable frequency motor is transmission-connected to the rotating shaft, one end of the connecting rod is rotationally connected to the eccentric shaft, and the other end is rotationally connected to the vibration rod, thereby simulating the working condition of the aviation transmission component in a lateral vibration environment.

A field of electric drive devices and electric machines, such as electric motors and electric generators for industrial applications, and more particularly to a method, an arrangement and a frequency converter for controlling lateral vibration of an electric machine. The arrangement of the present invention for controlling lateral vibration of an electric machine includes a frequency converter, one or more vibration sensors and an electric machine, wherein the one or more vibration sensors is / are arranged for measuring the lateral vibration from the electric machine and for producing measured vibration data; and wherein the frequency converter is arranged for generating a control torque for exerting the control torque on the stator of the electric machine, the control torque being determined utilizing the measured vibration data.

The utility model provides a fluid medium pressure gauge adopting an embedded damping device, which comprises a damping plate, bottom plates are arranged on two sides in a sliding chute, a supporting seat is movably arranged at the top of each bottom plate, an outer protection plate is mounted at the top of each supporting seat, and a pressure gauge body is mounted on each outer protection plate. An inner buffer rubber block is arranged between the bottom of the pressure gauge body and the outer protection plate; according to the utility model, the top of the damping plate is provided with the supporting seat sliding on the bottom plate, the top of the supporting seat is provided with the outer protection plate, the pressure gauge body is supported by the outer protection plate, and one side of the supporting seat is provided with the damper, so that the pressure gauge body can be damped through cooperation of the supporting seat and the damper when being subjected to transverse vibration; and meanwhile, the inner buffer rubber block is arranged between the pressure gauge body and the outer protection plate, so that the transmitted vibration can be reduced through the inner buffer rubber block when the pressure gauge body is subjected to vertical vibration, and the impact on the pressure gauge body is reduced.

The present invention provides a multi-directional vibration identification fault-tolerant sensor, comprising a housing, a slider, a stopper, and a plurality of side blocks; the upper portion of the slider is connected to the top of the housing via a first elastic member, the side of the slider is provided with a plurality of first nanomaterial friction layers spaced apart, and the first nanomaterial friction layers are inclined; the stopper is fixedly provided below the slider; each side block is connected to the stopper via a second elastic member, the upper end of each side block is provided with a first metal electrode inclined, each first metal electrode is fitted with a first nanomaterial friction layer, the outer wall of each side block is provided with a second nanomaterial friction layer, and a second metal electrode is provided on the inner wall of the housing at a position opposite to each nanomaterial friction layer. The present invention has the following beneficial effects: the frequencies of axial vibration and lateral vibration are measured simultaneously, and the cooperation of the stopper, the side block, and the second elastic member isolates the axial vibration from the lateral vibration, thereby reducing the overall measurement error.

The invention discloses laser datum line alignment calibration equipment for printing registration, and relates to the technical field of laser instrument calibration. Comprising a mounting table, a suspension mounting mechanism is arranged at the top of the mounting table and used for reducing vibration conduction during operation of the printing equipment, and a linear adjusting mechanism is mounted on the bottom wall of the mounting table. The defects that a traditional lead screw sliding block has a residual gap and is prone to being affected by vibration to move are overcome in a targeted mode, a triangular locking piece can convert transverse vibration force into longitudinal compression force, and it is guaranteed that the locking piece is accurately embedded into a locking groove to achieve mechanical locking in cooperation with limiting guiding of a lug block and a lug groove. After the electromagnet is powered on, secondary fixing is formed through attraction force to be tightly attached to the locking piece and the inner wall of the locking groove, residual gaps are thoroughly eliminated, the double locking enables the position precision and the anti-vibration stability of the laser emitting device to be higher, and it is guaranteed that a datum line is accurate and stable in the whole printing process.

The application provides a bearing assembly for chemical mechanical polishing, comprising a damping module, a driving module and a bearing head; wherein the damping module comprises a spindle with a cavity inside and a first damping unit in the cavity, the first damping unit comprises a core and a plurality of damping blocks arranged on the outer wall of the core, the damping blocks extrude the inner wall of the cavity to absorb the transverse vibration of the spindle. The core is placed in the spindle, which enhances the damping and anti-vibration effect, in addition, the plurality of damping blocks arranged on the outer wall of the core can absorb the transverse excitation generated from the polishing head grinding, the compression resistance of the damping blocks is fully utilized, the original shearing and tensile working state is changed to a compression working state, the transverse damping capacity is increased, and the reset and limiting effects are also exerted.

The application discloses a fuel beach buggy engine suspension assembly and belongs to the technical field of installation and arrangement of internal combustion engines. The fuel beach buggy engine suspension assembly comprises a base and a framework. A buffer assembly one is arranged at the corner of the framework. The buffer assembly one is assembled and connected with a vehicle frame. A buffer assembly two is arranged at the middle section of the framework. The buffer assembly two is assembled and connected with an engine. The buffer assembly one comprises two hierarchical bushings and two rubber bushings. The buffer assembly one and the buffer assembly two are arranged to decouple and process impacts and vibrations in different directions. The buffer assembly one mainly bears impacts in the vertical direction and the vehicle longitudinal direction, and the buffer assembly two focuses on processing impacts and vibrations in the vehicle transverse direction. The design with clear division of labor enables the suspension system to efficiently cope with the complex stress environment of the beach buggy, and significantly improves the inhibition capacity for transverse vibrations.

The application discloses a BLDC rivet automatic feeding detection mechanism, which comprises two transverse vibration supports arranged on a workbench, a longitudinal feeding plate arranged corresponding to a channel, a rivet detection assembly for detecting defective rivets and a defective product dropping mechanism for receiving defective rivets. The transverse vibration supports and the longitudinal feeding plate are arranged to quickly convey the rivets to be detected, so that manual feeding is avoided and the work efficiency is improved. Meanwhile, the rivet detection assembly and the defective product dropping mechanism are arranged to cooperate with each other to detect the rivets. The automatic detection improves the detection accuracy and realizes synchronous detection of a conveying line, thereby reducing the complexity of an assembly line.

The present invention discloses a device for improving the density and vibration quality of large-volume concrete pouring, which comprises: a vibrating steel mesh, which comprises longitudinal vibrating steel bars and transverse vibrating steel bars, wherein the longitudinal vibrating steel bars are arranged in the gaps between the structural steel bars of the concrete structure, one end of the longitudinal vibrating steel bars is connected to the inner formwork via a fixed sleeve, and the other end is connected to the outer formwork via a fixed sleeve; the transverse vibrating steel bars are arranged in the gaps between the structural steel bars of the concrete structure, and the transverse vibrating steel bars are connected to the longitudinal vibrating steel bars; a vibrating motor, which is connected to the vibrating steel mesh via a vibration transmission member to transmit vibration to the vibrating steel mesh. The present invention achieves vibration of the concrete by laying the vibrating steel mesh in the gaps between the structural steel bars of the concrete structure and using the vibrating motor to drive the vibrating steel mesh to vibrate. Vibrating in the form of a vibrating steel mesh has the advantages of uniform and comprehensive vibration, and effectively avoids the occurrence of vibration leakage, uneven vibration, and the like.

The mixing tank for latex paint production comprises a bottom plate, two connecting rods are installed on the upper end face of the bottom plate in a sliding and penetrating mode through a supporting plate, a tank body is fixedly installed at the ends of the two connecting rods together through a fixing mechanism, and an extrusion block is fixedly connected to the outer walls of the two connecting rods together. The inner wall of the extrusion block is connected with the outer wall of the supporting plate through an elastic mechanism, a first motor is fixedly installed on the outer wall of the supporting plate through a connecting mechanism, an eccentric wheel is fixedly installed on the outer wall of an output shaft of the first motor, and an extrusion groove matched with the eccentric wheel is formed in the outer wall of the extrusion block. Through the arrangement of the eccentric wheel, the extrusion block, the spring and other components, when the eccentric wheel is in rotating contact with the extrusion groove in the outer wall of the extrusion block, the tank body can generate transverse vibration under the cooperation of the elastic effect of the spring, and the transverse vibration is combined with the stirring effect of the stirring blades, so that the mixing uniformity of materials is greatly improved; the problem that a traditional mixing tank is uneven in mixing is effectively solved.

The invention discloses a method for predicting machine tool guide rail straightness degradation induced by assembly pretightening force relaxation. The method comprises the following steps that 1, a machine tool guide rail system refined finite element model considering thread contact nonlinearity is established; and 2, constructing a pretightening force relaxation dynamic simulation model under the transverse vibration load. And 3, calculating the deformation distribution of the machine tool guide rail joint surface along the length direction at the corresponding moment. And 4, processing the deformation distribution curve of the guide rail at each moment by adopting an envelope method, calculating the straightness of the guide rail, and analyzing the evolution law of the straightness at m moments. And step 5, establishing a nonlinear mapping model of the straightness and the time based on the data that the straightness changes along with the time, and verifying a prediction result through a test. The method can effectively predict and improve the precision retentivity of the combined surface of the key parts of the machine tool.

The application provides a multiple-redundancy anti-loosening uniform load nut system based on biaxial counter-pressing and vibration energy conversion and an assembling method, which comprises an anti-loosening locking module and a standard nut; the anti-loosening locking module is used for cooperating with a bolt; the standard nut is used for cooperating with the bolt; when the anti-loosening locking module and the standard nut cooperate to lock a workpiece, biaxial counter-pressing is formed between the standard nut and the anti-loosening locking module. The application establishes a static mechanical balance of biaxial counter-pressing, and utilizes the rotation direction characteristics of the positive and reverse threads to lock the nut and intelligently convert the energy component leading to loosening in random transverse vibration into a driving force of dynamic enhanced locking force, so that a positive feedback anti-loosening mechanism of the tighter the better is realized.

The invention provides a lamp anti-vibration detection device. The lamp anti-vibration detection device comprises a shell, two mounting plates above the shell, a transverse vibration assembly between the two mounting plates, a longitudinal vibration assembly and a driving assembly, wherein the longitudinal vibration assembly and the driving assembly are arranged in the shell; the longitudinal vibration assembly comprises a rotating shaft connected with the shell, a rotating rod on the rotating shaft and sliding rods on the two sides of the rotating rod, the sliding rods are arranged in vertical grooves of the shell, and each sliding rod comprises two parallel vertical rod parts, a cylindrical part connected with the bottoms of the two vertical rod parts and a first sliding block part connected with the tops of the two vertical rod parts; transverse grooves matched with the cylindrical parts are formed in the two sides of the rotating rod, and first sliding grooves matched with the first sliding block parts are formed in the bottom of the mounting plate; the transverse vibration assembly comprises two inclined grooves connected with the shell and two connecting transverse rods. One sides of the connecting transverse rods are connected with the mounting plate, and the other sides of the connecting transverse rods are provided with sliding rods matched with the inclined grooves. The driving assembly is used for driving the rotating rod to rotate. The problem that the detection result of the lamp anti-vibration detection device in the prior art is not accurate enough is solved.

The utility model relates to the technical field of scrap recovery, in particular to a plastic plate production and processing scrap recovery mechanism which comprises a base, a connecting frame is installed on the base through a sliding mechanism, the connecting frame is connected with a transverse vibration mechanism, and an installation frame is transversely arranged above the connecting frame. A limiting rod movably penetrating through the mounting frame is vertically and fixedly mounted at the corner of the upper end face of the connecting frame, a butt-joint groove is formed in the inner side wall of the connecting frame, a screening frame is slidably matched with the inner wall of the connecting frame, and a butt-joint strip slidably matched with the butt-joint groove is transversely and fixedly mounted on the outer wall of the screening frame; a driving shaft rotationally connected with the connecting frame is transversely arranged below the screening frame, the outer wall of the driving shaft is fixedly sleeved with a cam in sliding fit with the mounting frame, the driving shaft is connected with a power mechanism, and a collecting tank movably embedded in the upper end face of the base is arranged below the screening frame. According to the utility model, the screening frame moves more complexly, so that the passing of chips is accelerated, and the screening and recycling efficiency is improved.

The application discloses a self-supporting structure deep water transducer based on a relaxor ferroelectric single crystal, which comprises a certain number of transducer units, each of which comprises a piezoelectric element, a transition block, a curved shell, a force transmission plate and a radiation panel; the piezoelectric element adopts a relaxor ferroelectric single crystal element; the curved shell adopts a type VII bending-stretching transducer shell form with the long axis and the short axis vibrating in phase, one force transmission plate is added to the outside of the short axis of the shell, a certain number of transducer units are arranged in a certain rule, the radiation panel is connected to the transducer units through the force transmission plates at both ends of the transducer units, the transverse vibration of the single crystal element is amplified in displacement through the curved shell at the short axis of the shell, the vibration is transmitted to the radiation panel through the force transmission plate, the radiation panel is used for reducing the working frequency, unifying the vibration phase of the transducer units, directly facing the fluid to bear the hydrostatic pressure, and isolating the internal space from the external fluid; the static pressure of the external fluid acts on the radiation panel and then acts on the short axis of the shell through the force transmission plate.

A kind of high-density coil-based vibration transducer, the upper part of the transduction structure support is provided with A vibration pickup beam, the lower part of the transduction structure support is fixed B vibration pickup beam, A vibration pickup beam and B vibration pickup beam are provided with permanent magnet, the top cover center of transduction structure support is provided with upper laminated flexible coil, the bottom end center of the shell base below B vibration pickup beam is provided with lower laminated flexible coil;The positive and negative poles of upper laminated flexible coil and lower laminated flexible coil are connected to the electrode sheet of line lead-out terminal in cascaded manner, lead-out terminal is fixed at the center reserved hole of shell top cover, shell top cover and shell base are adapted to form vibration transducer shell together;The present application adopts double-beam plus double-coil output, reduces the transverse vibration of device;Improve device sensitivity, change the previous magnet through-type structure of magnetoelectric transduction structure using winding coil, adopt the upper and lower integrated mode of magnet and coil, effectively reduce the overall size of device.

The online operation state evaluation method for the main driving chain of the escalator comprises the steps that an image collection system is built, and state images of the main driving chain are continuously collected in the historical operation process of the escalator; the collected state image is processed, and a transverse vibration signal generated in the running process of the driving chain is extracted; performing sample labeling, signal denoising, signal fragmentation and data standardization processing on the collected original transverse vibration signals to obtain a real historical data sample set for model training; a real historical data sample set is used as training data, and a data enhancement model based on a time sequence generation framework is constructed and trained; inputting a random noise vector into the trained data enhancement model, generating different types of abnormal samples, and forming a health state evaluation training set by real historical data samples and the abnormal samples; and establishing and training a health state assessment model based on the health state assessment training set.

The utility model discloses an anti-vibration electronic compass structure, which comprises an electronic compass main body and four groups of damping components respectively arranged at four corners of the electronic compass main body, mounting holes are arranged at the four corners of the electronic compass main body, and each group of damping component comprises an outer sleeve arranged in the corresponding mounting hole. A mounting sleeve is coaxially arranged in the outer sleeve, the outer wall of the mounting sleeve is connected with the inner wall of the outer sleeve through a plurality of transverse elastic pieces, the two ends of the mounting sleeve are connected with the electronic compass main body through longitudinal elastic pieces respectively, and transverse vibration and longitudinal vibration of equipment during working can be absorbed through the transverse elastic pieces and the longitudinal elastic pieces; the vibration reduction effect is good, parts on the electronic compass main body are prevented from being damaged due to vibration, and the service life of the electronic compass is prolonged.

The utility model discloses a swing device of swing bogie, including H type frame, the H type frame is fixedly connected with the butt joint board for connecting train in the position of center, the top fixed connection of H type frame has two air springs, the both ends of H type frame are all rotatably connected with wheelset through bearing, and the outside fixed connection of wheelset has two limit stops, two L type boards are fixedly connected in the H type frame, and wheelset passes through L type board, the top fixed connection of L type board has two fixed blocks, and one side of two fixed blocks is all fixedly connected with the rotating plate. The utility model not only can effectively reduce the impact between wheel and rail, improve the running stability of vehicle, reduce wheel and rail wear, prolong the service life, promote the operation efficiency, but also can restrain the lateral vibration and swing of carriage in the horizontal plane, especially prevent dangerous "snake movement", ensure the running stability and safety.

A device for local friction modulation via vibration includes a vibrating interface with a contact surface, a plurality of actuators with active surfaces that are arranged against this vibrating interface, designed to vibrate the vibrating interface in a transverse direction through the transmission of mechanical bending waves to create at least one local friction modulation on the contact surface, and a generator which generates a plurality of control signals for controlling the actuators. Each control signal comprises a carrier signal at a non-radiating frequency for the actuator that it controls. At least two of the actuators share an overlapping common portion of their active surfaces.

The utility model relates to a novel ultrasonic elliptical vibration coupling mechanical rubber tapping system which is suitable for high-precision low-damage harvesting operation of natural rubber trees. Through cooperative work of the ultrasonic power source, the ultrasonic transducer, the ultrasonic amplitude-change pole, the tool holder and the rubber tapping system base, controllable elliptical vibration of the rubber tapping knife is achieved, and the defects in the prior art are effectively overcome. The system adopts a full-bridge structure high-frequency inverter circuit with an auxiliary network, so that the switching loss is reduced, and the power conversion efficiency is improved; the bimodal composite vibration type ultrasonic transducer generates elliptical vibration through the transverse vibration set and the longitudinal vibration set, and the cutting effect is improved. The exponential ultrasonic amplitude-change pole amplifies a vibration signal, and the cutting strength and efficiency are enhanced; the rubber tapping system base ensures stable connection between the system and the robot; and the cutter clamping seat adopts a clamping type positioning groove, so that the blade is convenient to replace. The rubber tapping device has the advantages of being efficient, accurate and low in abrasion, and the quality and efficiency of rubber tapping operation are remarkably improved.