13results about How to "Frictionless" patented technology

The invention provides an automatic feeding device and an automatic feeding method for a lithium battery winding machine. The automatic feeding device comprises a conveying unit, a winding material barrel, a feeding clamp and a winding material hanging shaft, the transportation unit comprises a chassis and a supporting frame, the supporting frame is longitudinally and fixedly arranged on the chassis, and the chassis drives the supporting frame to move in any direction on a plane; the outer wall of the roll material barrel bears roll materials; the feeding clamp is installed on the supporting frame through the lifting module, and the lifting module is arranged in the longitudinal direction of the supporting frame. The coil stock hanging shaft is used for hanging a coil stock barrel, the coil stock hanging shaft comprises a telescopic assembly and a tensioning assembly, and the telescopic movement of the telescopic assembly drives the tensioning assembly to stretch or retract; and the automatic feeding device is used for feeding the coil stock. Through mutual cooperation of all the parts, the coil stock is automatically conveyed to the designated position of the winding machine, a coil stock barrel is automatically, smoothly and accurately placed into a coil stock hanging shaft in a friction-free mode, manpower is saved, friction is avoided in the whole process, and automatic feeding is achieved in the whole process.

The invention discloses a six-degree-of-freedom flexible parallel active vibration isolation platform which comprises an effective load platform, a first decoupling actuation supporting leg, a second decoupling actuation supporting leg, an actuator and a lower platform arranged under the effective load platform. The three first decoupling actuation supporting legs are evenly distributed and transversely and fixedly arranged on the side wall of the effective load platform, and the tail ends of the first decoupling actuation supporting legs are fixedly connected with the corresponding positions of the lower platform. The three second decoupling actuation supporting legs are evenly distributed and transversely and fixedly arranged on the side wall of the effective load platform, and the first decoupling actuation supporting legs and the second decoupling actuation supporting legs are arranged at intervals. According to the invention, six groups of parallel straight plate flexible beams are used for guiding an actuator to carry out translation action so as to apply a load to the middle rigid body, and then the middle rigid body is used for respectively carrying out active control on micro vibration generated by the effective load platform on each No.1 folding flexible beam and each No.2 folding flexible beam.

The application relates to a fast mirror system based on a transmissive application of an eddy current sensor, which comprises a detector seat, a working mirror body, a mirror seat, a flexible hinge, a voice coil motor, an inner ring seat, an outer ring seat, a rotating ring, an eddy current sensor and a controller; the working mirror body is fixedly connected with the mirror seat; the mirror seat is fixedly connected with the inner ring seat through the flexible hinge; the inner ring seat is fixedly connected with the outer ring seat through the flexible hinge; the outer ring seat is fixedly connected with the rotating ring; the rotating ring is fixedly connected with the inner ring seat and the outer ring seat through the flexible hinge; the outer ring seat is fixedly connected with the detector seat; four eddy current sensors are assembled in the detector seat to collect angle information when the mirror seat rotates; the application has the characteristics of high bandwidth and high precision, can realize the ability of reflecting and transmitting light paths of the working mirror body, provides more possibilities and operability for application environments of a light path stabilization system, and provides a good selection scheme in the directions of light path stabilization and system light path design.

This invention provides a water-blocking device for a tunneling machine and a tunneling machine in the field of tunneling equipment technology. The water-blocking device for the tunneling machine includes a fixing member for fixing to the bottom of the shield body. A sealing member for sealing the gap between the bottom of the shield body and the tunnel wall is installed on the fixing member. The sealing member has a contact surface for contacting the tunnel wall. The water-blocking device also includes a control structure connected to the sealing member to control the contact surface's contact or detachment from the tunnel wall. The contact surface of the sealing member can seal the gap between the bottom of the shield body and the tunnel wall, preventing water from seeping into the tunnel, flowing water behind the tunnel, or water used for construction from flowing to the front of the shield body and mixing with the excavated rock. This prevents the excavated rock transported to the conveyor belt from having excessive moisture content, causing transportation difficulties and ensuring the normal excavation function of the conveyor belt. Excavation is not required by manual assistance, saving manpower and time. The contact surface of the sealing member can also detach from the tunnel wall, facilitating the tunneling machine's forward movement and avoiding excessive friction that could affect its service life.

This invention discloses a frictionless, gapless fluid flow controller, comprising a housing and a flow control assembly. The housing has several fluid outlets on its sides and bottom, and the flow control assembly is located inside the housing. The flow control assembly includes a central shaft, an upper end face, a lower end face, and a side baffle. The central shaft has an upper end face and a lower end face at its upper and lower ends, respectively, and a side baffle is located between the upper and lower end faces. The width of the side baffle is greater than the width of the fluid outlets. The upper and lower ends of the central shaft are rotatably connected to the housing, and a gap exists between the side baffle and the inner wall of the housing. This design of the flow control assembly, with a gap between the side baffle and the inner wall of the housing, eliminates friction and improves service life. Foreign objects in the cooling system can pass directly through the gap without obstruction. Compared to existing technologies, it eliminates high-value components such as springs and seals.

The utility model provides a non-contact induction identification sharing device, which comprises a cabinet, a plurality of return bins are arranged in the cabinet, a power bank main body is arranged in each return bin, a power bank PCBA, a Hall switch and a wireless signal transmitter are respectively arranged on the surface of each power bank main body, magnets are arranged on the surfaces of the return bins, and the magnets are arranged on the surfaces of the return bins. One end of the return bin is provided with a connector, the wireless signal receiver is installed at one end of the return bin, one end of the return bin is connected with an elastic needle, and one end of the return bin is connected with a connector. According to the non-contact induction and identification sharing device provided by the utility model, the wireless signal transmitter and the wireless signal receiver which can transmit radio signals are added in the cabinet, the magnet is added in the return bin of the cabinet to induce the returned power bank main body, after the power bank main body enters the bin, the magnet turns on the Hall switch, and the wireless signal transmitter and the wireless signal receiver transmit the radio signals to the wireless signal receiver. And the power bank main body sends a signal to the cabinet, and the cabinet successfully returns after identifying the signal of the power bank main body.

The utility model relates to a compact projection type LED car light, including base one, still including setting on the upper end of base one half -reflector cover, and half -reflector cover is composed of multiple continuous free surface, and the upper end surface of base one is provided with the locating groove, and the inside of locating groove is provided with the locating seat, and the upper end of locating seat is installed with LED light source, and the left end of base one is provided with mobile assembly, and mobile assembly is installed with the light shield on, and mobile assembly is used for moving to the light shield, and it realizes light regulation, and the half -reflector cover of multiple continuous free surface composition, the novel mobile assembly utilizes the magnetic force to realize the non -contact drive, and there is no mechanical friction, and the service life is long, and there is no noise in operation, and the response speed is fast, and the magnet layout of magnetic pole opposition is adopted to form controllable magnetic field, and the control precision is promoted, and the reset spring is combined with PWM signal regulation, ensures that the light shield moves steadily accurately, realizes stable and reliable accurate intelligent dimming.

This invention provides a tunnel-type garment smoothing machine, belonging to the field of garment smoothing technology. It includes a housing with through slots at both ends, forming a smoothing channel between the slots. A steam ironing component and a drying component are installed within the smoothing channel. A conveyor component runs through the smoothing channel, passing sequentially through the steam ironing and drying components to smooth the garments. This invention uses a conveyor component to guide the garments through the smoothing channel, and the steam ironing and drying components, sequentially arranged within the channel, achieve steam smoothing and drying of the garments. Compared to tumble drying, this method causes less damage to the garments, and the entire process is friction-free and undamaged.

The embodiment of the invention discloses a micro-motion magnetic suspension Z-axis driving device which comprises a voice coil motor stator assembly, a voice coil motor rotor assembly and a magnetic suspension gravity compensation assembly, and the magnetic suspension gravity compensation assembly comprises a dynamic magnetic force assembly and a static magnetic force assembly. The dynamic magnetic assembly and the static magnetic assembly are respectively connected with the voice coil motor stator assembly and the voice coil motor rotor assembly; the magnetizing directions of the dynamic magnetic assembly and the static magnetic assembly are opposite; repulsive force generated by the magnetic suspension gravity compensation assembly in the Z-axis direction is equal to the sum of gravity of the load, the voice coil motor rotor assembly and the static magnetic force assembly. Through cooperative work of magnetic suspension guiding, permanent magnet constant force compensation and coil dynamic magnetic field compensation, negative influences of load changes on Z-axis dynamic response and control precision are effectively overcome, and the overall efficiency and the product yield of semiconductor device packaging and testing are remarkably improved.

The utility model discloses a low-torque gate valve, which relates to the technical field of valves, and comprises a valve body, a valve rod, a valve seat and a gate plate, the valve body is provided with a medium channel, the gate plate is movably arranged in the valve body along the direction perpendicular to the medium channel, the valve seat is arranged in the medium channel and can form sealing fit with the gate plate, and the valve rod is arranged in the valve body. The gate plate is formed by connecting a left gate plate and a right gate plate in a rotary inserting mode, a driving groove is formed in the middle of the two gate plates, an opening mechanism is arranged in the driving groove and comprises a supporting plate and a crank, and the supporting plate is in transmission connection with the bottom of the valve rod through the crank. The valve rod moves up and down to drive the supporting plate to be away from the side wall of the driving groove or abut against the inner wall of the driving groove so as to open the double gate plates. When the gate valve is opened or closed, no friction exists between the gate plate and the valve seat, the opening and closing torque of the valve is reduced, and the service life of the valve is effectively prolonged.

The utility model discloses a ratchet wheel type variable torque synchronous double-shaft rotating shaft which comprises a rotating shaft body, a fixing plate is installed on the rotating shaft body, an LCD shaft and a BASE shaft are arranged on the fixing plate respectively, the bottom of the LCD shaft and the bottom of the BASE shaft are sleeved with an S buckle, an intermediate gear is installed on one side of the S buckle, a gear A is installed on one side of the intermediate gear, a gear B is installed on the other side of the intermediate gear, and the gear A and the gear B are meshed with each other. A ratchet wheel is arranged on one side of the pawl, and a limiting block is installed at the bottom of the ratchet wheel. And a limiting staddle is mounted on one side of the S-shaped buckle. According to the ratchet wheel type variable-torque synchronous double-shaft rotating shaft, the ratchet wheel and the limiting block generate relative motion, the number of friction surfaces is increased, and the torque is increased; through cooperation between the pawl and the limiting block and the one-way rotation characteristic of the pawl and the ratchet wheel, variable-torque rotation of the rotating shaft body in a specific angle state is achieved; the design of variable torsion enables a user to realize accurate positioning when adjusting the angle of the screen.

The invention provides a precise air motorized spindle for wafer chamfer cutting. The precise air motorized spindle comprises a spindle rotor, a driving motor, a front air bearing, a rear air bearing, a cooling water jacket, a rear thrust bearing, a front cover, a rear cover and a shell sleeve. The main shaft rotor is installed in the driving motor, the front end and the rear end of the main shaft rotor are sleeved with the front air bearing and the rear air bearing respectively, the cooling water sleeve is arranged on the outer sides of the front air bearing, the driving motor and the rear air bearing in a sleeving mode, and the rear thrust bearing is located on the outer side of a flying disc of the main shaft rotor. The front cover and the rear cover are located on the front side of the front air bearing and the rear side of the rear thrust bearing respectively and installed on the cooling water jacket, and the outer side of the cooling water jacket is sleeved with the shell sleeve. According to the precise air motorized spindle, the problems that a traditional wafer chamfering machine is insufficient in precision, large in vibration, fast in abrasion and the like are solved, the reliability of the whole system is improved, the service life of the whole system is prolonged, and a more efficient and more precise solution is provided for the semiconductor manufacturing industry.

The present application relates to the field of vehicle parts, in particular to a multi-gear switch assembly for vehicle, a multi-gear switch for vehicle and a vehicle. The multi-gear switch assembly for vehicle comprises a key, a sliding block, a reset piece, a force arm piece, a conductive rubber, a circuit board and a shell. The key drives the sliding block to move in two directions relative to the reference surface. The sliding block is provided with a plurality of guide pieces in contact with the force arm piece. The force arm piece is provided with an elastic arm, and the free end of the elastic arm is provided with a pressing column. When the sliding block moves, the pressing column end cooperates with the guide piece to make the pressing column move perpendicular to the reference surface. The other end of the pressing column extrudes the conductive rubber to the circuit board, so that the pressing column, the conductive rubber and the circuit board are electrically connected. The sliding switch cooperates with the inclined surface to shift gears, and the gear shifting is free of friction, noise and high reliability. The shell force arm structure is combined into one part, the assembly is simple, the process is less, the production efficiency is higher, the cost of the product is reduced, and the product has more market competitiveness.