14results about How to "Avoid friction" patented technology

This utility model discloses a backrest lock, including a base plate. A locking hook and a locking plate are movably disposed on the base plate. The end of the locking plate has a pull head for connecting and cooperating with an external car pull rod, so that when the pull rod is pulled, the locking plate swings to release the restriction on the swing of the locking hook. The inner wall of the locking hook has a positioning strip for synchronously moving along the swing trajectory of the locking hook when it swings. The inner wall of the base plate has a positioning structure that works in conjunction with the positioning strip to guide the swing trajectory of the locking hook and limit the direction of the hook's swing, and an auxiliary structure that works in conjunction with the positioning structure to limit the wobbling or loosening of the locking hook when it is subjected to vibration and to improve the smoothness of the hook's swing. This utility model solves the problems of unstable hook swing trajectory and insufficient positioning accuracy in traditional backrest locks, easy loosening or wobbling of the locking hook under vibration, and insufficient smoothness of the hook's swing leading to operational jamming.

The utility model belongs to high -voltage electric porcelain technical field, concretely is a kind of anti-deformation pottery clay wine jar forming die, including support frame, still include: spraying assembly is set to support frame top inside;Send mud component, is set to support frame top outside;Moving assembly is set to support frame both sides inside;Die is real component, is set to moving assembly moving end;The utility model provides a kind of anti-deformation pottery clay wine jar forming die, before the two sides pottery clay mould is real, and spraying release agent on pottery clay mould inner wall, and release agent can reduce pottery clay and the adhesion of mould, ensure that pottery clay smoothly demould, avoid deformation or damage, secondly, it helps to ensure that pottery clay wine jar keeps stable shape during forming process, avoid partial pressure and deformation, furthermore, release agent can improve demoulding efficiency, reduce friction, to speed up production process, it can also protect mould surface, reduce wear and tear, extend the service life of mould, and reduce maintenance frequency.

Nuclear power turbine high pressure valve hydraulic control mechanism and driving system. In the first hydraulic passage of the nuclear power turbine high pressure valve hydraulic control mechanism, the first end of the first emergency electromagnetic valve is connected with the oil supply device through an oil return passage, the second end is connected with the control oil chamber of the first pilot cartridge valve through a first throttle hole, and is also connected with the first end of the first check valve; the second end of the first check valve is connected with the pressure oil chamber of the first pilot cartridge valve, and is also connected with the first end of the first main cartridge valve; the second end of the first main cartridge valve is connected with the driving mechanism through a power passage; the first pilot cartridge valve and the first main cartridge valve are also connected with the oil supply device through oil return passages; in the case that the first emergency electromagnetic valve is closed by power-off, the first pilot cartridge valve and the first main cartridge valve are opened in turn, forming an oil path from the driving mechanism to the oil supply device. The nuclear power turbine high pressure valve hydraulic control mechanism can eliminate the driving mechanism failure.

The utility model discloses an auxiliary structure based on primary and secondary separate current -limiting complete equipment, and the utility model relates to electrical equipment technical field. This auxiliary structure based on primary and secondary separate current -limiting complete equipment of the utility model includes the bottom plate, and the top of bottom plate is provided with the limiting mechanism, and the top of bottom plate is used for limiting the position of connecting component, and connecting component includes the limiting frame that is embedded and is installed in the top of support component, and the inside of limiting frame is inserted and is installed with the connecting column, and the top of connecting column is inserted and is installed with the insulating plate, and the below of limiting frame swing installation has the movable frame, and damping rod is inserted and is installed with support spring elastic deformation by the inclination rotation characteristic of itself, and the top insulating plate is rubber material, can effectively absorb, buffer shock energy, avoid that shock is directly transmitted to equipment ontology, solve the problem that the existing clamping structure has no buffer and the service life of equipment is shortened by vibration, improve equipment operation stability and service life.

The utility model discloses a temperature input type signal isolator, including shell and installation portion, the shell is by half edge shell I and half edge shell II through bolt tight cover and is made, the top of installation portion has the slot for the plug -in installation shell, and has the ladder -shaped groove in the bottom of installation portion, and the both sides in the ladder -shaped groove are located with the vertical board, pass through the positioning structure between the " " shaped push frame and vertical board to make push frame relative to vertical board after moving and opposite fixed with vertical board, and with " " shaped support plate body is inserted into the aperture in the middle of guide rail for supporting, two clamping teeth are symmetrically installed in the ladder -shaped groove, and be used for clamping on guide rail. The utility model, avoided when using external bolt when signal isolation and guide rail installation fixed need extra punching and the inconvenience in the narrow space operation's disadvantages, bring the convenience to the installation and dismount of this signal isolator.

This invention belongs to the technical field of phase change heat transfer elements, specifically relating to a device and method for removing segmented mandrels. The invention includes a hydraulic motor, a winch, steel wire, a special clamp, a support platform, a baffle, and a worktable. The winch is mounted on the worktable, and the hydraulic motor is connected to the winch via a coupling. Steel wire is wound on the winch, with one end connected to one end of the special clamp, and the other end of the special clamp connected to the segmented mandrel. The upper surface of the support platform has a V-groove, and the workpiece containing the four-segmented mandrel is placed in and fixed within the V-groove of the support platform. A baffle is provided at the end of the support platform near the segmented mandrel. This invention provides a stable and powerful axial pulling force through a hydraulic system, and utilizes a special clamp and a step-by-step blocking mechanism to achieve reliable clamping and sequential, individual pulling of the segmented mandrel, solving the problems of difficult, inefficient, and easily damaged manual removal, thus improving the manufacturing quality and production efficiency of phase change heat transfer elements.

This application relates to the field of vehicle technology and discloses a power supply device for vehicle windows, including a drive assembly, a lifting assembly, a first conductive wire, and a second conductive wire. The lifting assembly includes a lifting rail and a slider, with the slider movably mounted on the lifting rail and used to fix the vehicle window glass. The first conductive wire has a first end and a second end, and the second conductive wire has a third end and a fourth end. The first end is connected to the slider via the upper end of the lifting rail and is electrically connected to the vehicle window glass. The third end is connected to the slider via the lower end of the lifting rail and is electrically connected to the vehicle window glass. The second and fourth ends are both electrically connected to an external circuit. The vehicle window power supply device provided by this application, without the need for additional power supply lines, can not only drive the vehicle window glass to rise or fall but also supply power to the vehicle window glass, thereby simplifying the structure of the vehicle window power supply device and avoiding interference or friction with surrounding components.

This utility model relates to the field of slurry pump maintenance technology and discloses a slurry pump cover hoisting tool, including a vertical, U-shaped lower hoisting frame and a horizontal C-shaped connecting frame. The open end of the hoisting frame faces downward, and the open end of the hoisting frame and the open end of the connecting frame are hinged. The connecting frame is provided with a connecting flange for connecting to the suction pipe flange of the pump cover. Lifting lugs for attaching to the hoisting tool are fixedly connected to the hoisting frame. The opening width of both the hoisting frame and the connecting frame is greater than the width of the pump cover. After the connecting flange is connected to the suction pipe flange, the hinge axis of the hoisting frame and the connecting frame passes through the center of gravity of the pump cover in the horizontal direction. During the process of leveling the pump cover, the pump cover never needs to contact the ground, thus preventing collisions with surrounding facilities and scratches to the ground. Furthermore, there is no need to operate a crane for horizontal movement or release the wire rope, so the pump cover is less prone to shaking when leveled.

This invention provides a two-dimensional electro-hydraulic servo valve based on a wet-dry separation transmission mechanism, comprising a valve body connected to a motor via a mechanical transmission mechanism; the valve body includes a valve core, a valve sleeve, and a valve body; the mechanical transmission mechanism includes a housing disposed between the valve body and the motor, within which are a wet operating chamber and a dry operating chamber, the wet operating chamber being connected to the internal oil passage of the valve body; the dry operating chamber is located on one side of the wet operating chamber, and the motor rotor extends into the dry operating chamber; the mechanical transmission mechanism also includes a transmission assembly, comprising a first-stage torque amplification mechanism and a second-stage torque amplification mechanism connected together. This invention addresses the problems of high-pressure dynamic seal friction loss and short lifespan in existing two-dimensional electro-hydraulic servo valve structures by incorporating a wet operating chamber; simultaneously, the dry operating chamber ensures that the hydraulic oil does not directly contact the motor; the transmission assembly amplifies the motor's output torque, overcoming various resistances encountered by the valve body during operation.

The utility model provides a waste edge yarn tension frame relates to textile technical field, including the waste edge yarn frame, first yarn guide device, tension device and second yarn guide device who sets up in sequence, and the waste edge yarn frame includes the yarn frame bottom plate, is provided with a plurality of groups of connecting rods on the yarn frame bottom plate, and the inclination of same group's a plurality of connecting rods is same, and the connecting rod is used for placing the waste edge yarn drum, first yarn guide device includes a plurality of yarn guide frame, and a plurality of groups of connecting rods are respectively towards the yarn guide frame inclination, is provided with a plurality of first yarn guide porcelain eye on the yarn guide frame, tension device includes a plurality of vertical yarn frame bottom plate setting's tension frame bottom plate, is provided with a plurality of tension ware on the tension frame bottom plate, and a plurality of yarn guide frames are respectively close to the tension frame bottom plate setting, second yarn guide device includes the yarn guide plate, and the yarn guide plate is perpendicular to the tension frame bottom plate setting, is provided with a plurality of second yarn guide porcelain eye on the yarn guide plate, makes the waste edge yarn's yarn route tend to straight line, avoids the instability of tension in the loom operation process.

The utility model discloses an anti-rotation mechanism and a seat of a telescopic component, the anti-rotation mechanism of the telescopic component and the telescopic component comprise a shell and an ejector rod, one end of the ejector rod is located in the shell, the ejector rod axially moves along the shell, the anti-rotation mechanism comprises a buckle component, the buckle component is clamped on the shell and the ejector rod, and the buckle component is connected with the shell and the ejector rod. The fixing device is used for radially fixing the shell and the ejector rod. According to the utility model, the buckle assembly is matched with the telescopic assembly, so that when rotation needs to be prevented, the buckle assembly is clamped on the telescopic assembly.