17results about How to "Avoid sliding friction" patented technology

This utility model relates to the field of pipe processing technology and discloses an inlaid roller mold for preventing damage to the surface of pipe fittings during bending. The mold includes a base, a mounting plate fixedly mounted on the top of the base, an L-shaped plate fixedly mounted on the top of the mounting plate, a cylinder fixedly mounted on the top of the base, two bending rollers symmetrically arranged on the front side of the L-shaped plate, an adjustment component on the rear side of the L-shaped plate, and a lifting component at the output end of the cylinder. This utility model avoids sliding friction between the mold and the pipe fitting by using rollers to contact the pipe fitting surface, thus preventing surface damage. Furthermore, the rollers act as guides during bending, ensuring the pipe fitting moves along a preset bending path. The rollers also distribute the concentrated pressure during bending to multiple contact points, preventing localized deformation or damage to the pipe fitting. The distance between the two bending rollers can be adjusted to accommodate different bending sizes.

The invention discloses a coil spring take-up and pay-off mechanism of a spiral lifting mechanism. A guide take-up and pay-off assembly comprises an upper guide assembly and a lower guide assembly. The upper guide assembly comprises a main guide wheel vertically arranged on the lifting base, an upper arc-shaped elastic piece fixedly arranged on the upper side of the bottom wall of the spring coiling disc and an upper elastic supporting body located at the free end of the upper arc-shaped elastic piece. The lower guiding assembly comprises a lower arc-shaped elastic piece fixedly arranged on the lower side of the bottom wall of the spring coiling disc and a lower elastic supporting body located at the free end of the lower arc-shaped elastic piece, and the upper arc-shaped elastic piece and the lower arc-shaped elastic piece are located at the two ends of the arc-shaped opening correspondingly and are oppositely arranged. The upper elastic supporting body and the lower elastic supporting body are spaced in the vertical direction and the horizontal direction. The transverse coil spring passes through the lower surface of the lower elastic supporting body from bottom to top and penetrates through the arc-shaped opening to be wound between the main guide wheel and the upper elastic supporting body, and the upper arc-shaped elastic piece and the lower arc-shaped elastic piece conduct self-adaptive adjustment on the retracting and releasing angle of the transverse coil spring.

The application relates to the field of new energy vehicle manufacturing, and discloses an automatic regularizing and aligning conveying operation mechanism for a battery liquid cooling plate, which comprises a conveying belt, a mounting frame is arranged above the conveying belt, a fixing block is slidably arranged in the mounting frame, a cylinder is arranged in the fixing block, and a connecting block is fixedly arranged at the extension end of the cylinder. The mechanism is re-designed. The cylinder in the fixing block drives the connecting block, the rotating block and the vacuum suction cup to move downwards, the liquid cooling plate body is lifted by the vacuum suction cup, the liquid cooling plate body is separated from the upper surface of the conveying belt, then the fixing block and the liquid cooling plate body are driven to move rightwards by the ball screw, the liquid cooling plate body is abutted and corrected by the adaptive abutting assembly arranged on the surface of the limiting plate, meanwhile, the regularizing and correcting operation of the liquid cooling plate body is completed through the rotation of the rotating block and the connecting block. The design makes the regularizing process of the liquid cooling plate body efficient and the regularizing precision higher.

The invention relates to the technical field of bearings, and discloses a retainer-free ball self-positioning bearing which comprises an outer ring mechanism and further comprises a ball mechanism and an inner ring mechanism, the inner wall of the side face of the outer ring mechanism is movably connected with the side face of the ball mechanism, and the side face of the inner ring mechanism is movably connected with the side face of the ball mechanism. The outer ring mechanism comprises an outer ring main body; by selecting a proper number of ball mechanisms, the ball bodies are uniformly mounted in the cavities formed by the outer ring ball grooves and the inner ring ball grooves, so that the adjacent ball mechanisms are not in contact with each other, and the positioning teeth are ensured to be engaged with the inner synchronous tooth grooves and the outer synchronous tooth grooves; therefore, the distance between the adjacent ball mechanisms in the running process of the bearing is kept unchanged, a retainer is replaced to fix the balls, sliding friction in the bearing is avoided, the retainer causing heating and abrasion is removed, the abrasion is reduced, the service life is prolonged, and the stability of the bearing is improved.

The utility model discloses a filter paper thermoforming device which comprises a mounting frame, a heating roller is rotatably arranged on the mounting frame, one end of the heating roller is fixedly connected with an inner ratchet wheel, a motor is mounted on the mounting frame, an output shaft of the motor is connected with the heating roller through a ratchet wheel mechanism, the ratchet wheel mechanism comprises a circular ring, and the inner ratchet wheel is fixedly connected with the inner ratchet wheel. The output shaft of the motor is fixedly sleeved with a circular ring, two mounting grooves are symmetrically formed in the circular ring, pawls used in cooperation with the inner ratchet wheels are rotationally arranged in the mounting grooves, and the pawls are connected with the inner walls of the mounting grooves through torsional springs. The ratchet mechanism is reasonably added at the connecting position of the output shaft of the motor and the heating roller, when the motor is damaged, the output shaft of the motor and the heating roller are not locked, sliding friction of filter paper when the filter paper passes through the heating roller corresponding to the damaged motor is avoided, the heating effect of the heating roller is ensured, and the possibility of breakage of the filter paper is reduced.

The utility model discloses a kind of for mountain flexible photovoltaic support assembly cable tensioning installation fixing device, including eccentric shaft, roller, rotation-stopping block, rotation-stopping block rotating shaft, rotation-stopping shaft, roller support structure;Roller is connected with the eccentric shaft through bearing, forms a roller assembly;Rotation-stopping block rotating shaft is provided with rotation-stopping block, and rotation-stopping block rotating shaft is together with rotation-stopping shaft and constitutes rotation-stopping assembly;Two pairs of roller assemblies are provided on roller support structure, and the roller assembly is arranged in pairs up and down, wherein the direction of installation of two eccentric shafts in each pair of roller assemblies is exactly opposite;Rotation-stopping assembly is provided on the side of one pair of roller assemblies, and rotation-stopping block rotating shaft one end passes through roller support structure and is fixed by split pin, and the other outer end passes through rotation-stopping block and is fixed by another split pin, and the rotation-stopping shaft is arranged on roller support structure, and located rotation-stopping block side;Groove for placing support structure member is provided on roller support structure, and support structure member is located between two groups of roller assemblies.

The invention discloses a method for solving the problem that a guide groove scratches the surface of round steel in the bar production process, and the method comprises the following steps that at least one scratch-proof guide wheel is installed in the guide groove and corresponds to the position of a round steel passing path, so that when the round steel passes through the guide groove, the surface of the round steel is in rolling contact with the scratch-proof guide wheel, and the round steel passes through the guide groove; a non-contact gap is kept between the bottom surface of the round steel and the bottom plate of the guide groove; and a cooling system and a lubricating system are configured for the scratch-proof guide wheel. Sliding friction between the round steel and the guide groove is converted into rolling contact with the scratch-proof guide wheel, it is guaranteed that a gap is reserved between the round steel and the bottom plate, and sliding scraping is fundamentally avoided, so that the surface quality of the round steel is remarkably improved, and linear scratches are eradicated. Meanwhile, through the matched cooling system and lubricating system, the working temperature of the scratch-proof guide wheel is effectively controlled, abrasion is reduced, and the scratch-proof guide wheel and related parts can still operate stably under the severe working condition.

The invention provides a battery clamp. The battery clamp comprises a lower bottom plate; a floating compensation mechanism is assembled on the upper bottom plate and the lower bottom plate, an assembly hole is formed in the upper bottom plate in a penetrating mode, a battery is placed on the floating compensation mechanism, and one end, provided with a pole, of the battery penetrates through the assembly hole and extends to the upper side of the upper bottom plate; the clamp further comprises a fixed long edge positioning plate, a movable long edge positioning plate, a fixed short edge positioning plate, a movable short edge positioning plate and a height positioning plate, the fixed long edge positioning plate and the movable long edge positioning plate are oppositely arranged in the thickness direction of the battery, and the fixed short edge positioning plate and the movable short edge positioning plate are oppositely arranged in the width direction of the battery; the floating compensation mechanism comprises a carrier plate, the height positioning plate and the carrier plate are oppositely arranged in the height direction of the battery, and the carrier plate has the trend of moving towards the height positioning plate and can move in the width direction and the thickness direction of the battery. The clamping device can adapt to battery remodeling, and is high in clamping precision and low in cost.

The utility model relates to the technical field of welding devices, in particular to a building construction temporary welding device with a magnetic attraction positioning support, which comprises a temporary welding device body, one end of the temporary welding device body is fixedly connected with an operation table assembly, and the upper end of the operation table assembly is fixedly connected with a bearing assembly and a telescopic pushing assembly. The operating table assembly comprises a base plate, the top end of the base plate is fixedly connected with a guide shell, the inner side of the guide shell is provided with a guide groove and a first through opening, the inner side of the guide groove is slidably connected with a guide block, the inner side of the guide block is fixedly connected with a permanent magnet, one side of the guide groove is fixedly connected with an assembly plate, and one side of the assembly plate is fixedly connected with a permanent magnet plate through bolts. The temporary welding device for building construction is adaptive to 360-degree circumferential welding of a carbon steel pipe, sliding friction generated by rotation of the steel pipe during welding can be avoided, the risk of scratching of the pipe wall is reduced, a surface protection layer is protected, and toughness and corrosion resistance after welding are guaranteed.

The utility model discloses a U-shaped plate frame plate turnover mechanism which comprises a conveying frame, a conveying platform used for conveying a U-shaped plate frame to move is arranged below the conveying frame, and a plurality of plates are vertically inserted in the U-shaped plate frame. A plurality of groups of conveying rotating shafts for conveying plates are rotationally mounted on the conveying frame, and a plurality of groups of conveying rollers are mounted on each conveying rotating shaft; the plate turnover mechanism is arranged on the conveying frame and used for transferring the plates on the U-shaped plate frame to the conveying rotating shaft; the plate turnover mechanism comprises a lifting assembly and a plate turnover assembly, the lifting assembly is used for inserting the plates into the plate turnover assembly, and the plate turnover assembly is used for driving the plates to turn over so that the plates can be stably placed on the conveying rotating shaft. And the use requirements can be better met.

This invention discloses an intelligent sorting device, belonging to the field of logistics equipment technology. The intelligent sorting device includes a support frame, a main conveyor belt, and sub-conveyor belts. It also includes: an identifier containing the address information of packages mounted on the main conveyor belt; a guide plate, with the movement direction of the sub-conveyor belts forming an acute angle with the movement direction of the main conveyor belt, a rotating shaft connected to one side of the guide plate, the rotating shaft being connected to a bearing on the support frame, and a power unit connected to the rotating shaft; multiple rollers, each roller's lower surface abutting against the main conveyor belt; and a controller electrically connected to the identifier and the power unit. Each sub-conveyor belt corresponds to one address information, and the controller compares the package's address information with the address information corresponding to the sub-conveyor belt. When the two information match, the controller controls the power unit to operate. This intelligent sorting device avoids the risk of damage to the items inside packages caused by unreliable gripping or excessive clamping force when using clamps to grip packages.

This application relates to the field of cable winding and unwinding equipment technology, and more specifically, to a construction cable winding and unwinding device. In the construction cable winding and unwinding device provided in this application embodiment, two guide pulleys are symmetrically installed on the inner surface of the cable tray, and the two guide pulleys are symmetrically distributed along the length direction of the cable tray. Furthermore, the guide planes of the two guide pulleys are located inside the inner surfaces of two discs. Thus, when the cable follows the cable winding mechanism close to the inner surface of the discs, the cable is guided by the guide pulleys, thereby avoiding sliding friction with the inner surface of the discs. Adopting the above structural design can effectively protect the outer surface and insulation layer of the cable, thereby extending the service life of the cable.

The invention relates to the technical field of filling, in particular to a dome type valve rod sealing filling gun which comprises a material pipe, a valve rod, a plug and a sealing structure, the material pipe is in a hollow pipe shape and communicates with a material inlet, the valve rod is arranged in the material pipe in a penetrating mode and can do axial reciprocating motion, and the plug is fixed to the bottom of the valve rod and can plug an opening in the bottom end of the material pipe; the sealing structure comprises a cavity and a sealing component, the cavity is arranged above the material pipe and communicated with the material pipe, a fixed part of the sealing component is fixedly sealed with the inner wall of the cavity, and a movable part of the sealing component is fixedly arranged on the valve rod in a sleeving mode and generates controllable elastic deformation along with movement of the valve rod to form static sealing. Traditional sliding sealing is converted into a static sealing structure, the fixed part of the sealing component and the cavity are fixedly sealed, the movable part of the sealing component moves along with the valve rod, the sealing state is maintained by means of elastic deformation, sliding friction between the valve rod and the sealing ring is avoided fundamentally, and the sealing performance is improved. And the problem of sealing failure caused by abrasion of the sealing ring and scratching of the sealing ring by crystal particles is fundamentally solved.

The utility model discloses a cam motion matching structure and discloses a door closer with the cam motion matching structure, the cam motion matching structure comprises a shell, a plunger, a reset spring, a transmission shaft and a cam part, and the plunger is arranged in the shell in a sliding mode; one end of the reset spring abuts against the shell, and the other end of the reset spring abuts against the plunger. The transmission shaft is rotationally connected with the shell; the cam part is arranged on the transmission shaft; the cam part comprises a first cam layer and a second cam layer, the first cam layer is provided with a first roller pin, the plunger is provided with a second roller pin, when the transmission shaft rotates within a first angle range, the first roller pin and the plunger roll in an abutting mode, and when the transmission shaft rotates within a second angle range, the second roller pin and the second cam layer roll in an abutting mode. According to the cam motion matching structure, the friction resistance between the cam and the plunger can be reduced, the abrasion between the cam and the plunger is reduced, the cam and the plunger are not prone to being damaged, and the service life is guaranteed.

The application relates to a tension adjusting mechanism for a warping machine, which comprises a support plate, three tension wheels and an adjusting device, the three tension wheels are distributed in an equilateral triangle, the tension wheels are connected to the end surface of the support plate in a sliding mode close to or away from the circumcenter of the equilateral triangle, and the adjusting device is used for simultaneously changing the size of the equilateral triangle formed by the three tension wheels, and yarns pass through the three tension wheels in sequence. The application has the effect of reducing the slippage friction of the warp yarns relative to the tension wheels, thereby improving the quality of the warp yarns.