7results about How to "Frictionless" patented technology

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.

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 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 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.