39results about How to "Avoid sliding friction" patented technology

The invention relates to a high-strength tungsten alloy ultra-fine wire drawing device, comprising a traction structure and a drawing structure, wherein the traction structure comprises an inner winding piston, an outer electromagnetic coil, a linear guide rail and a clamp; the drawing structure comprises a clamping jaw, an electromagnetic valve and an eye mold; the inner winding piston and the outer electromagnetic coil are both sleeved on the linear guide rail, and the outer electromagnetic coil is sleeved on the outside of the inner winding piston, and the outer electromagnetic coil is fixed on the linear guide rail through a clamp, and the inner winding piston is provided with an inner electromagnetic coil; the eye mold is arranged on one side of the linear guide rail, the clamping jaw is fixedly installed on the inner winding piston, and the clamping jaw is connected to the electromagnetic valve, the tungsten wire is fixedly clamped by the clamping jaw after passing through the eye mold, and the opening and closing of the clamping jaw is controlled by the electromagnetic valve. The purpose of the invention is to provide a high-strength tungsten alloy ultra-fine wire drawing device, aiming at the existing technology of online heating tower wheel type slip differential drawing, and solving the defect caused by the sliding friction between the tower wheel and the metal filament in the tower wheel type slip differential drawing.

The invention relates to the field of steel cutting equipment, in particular to die steel fixed-length cutting equipment which comprises a base, supporting pieces are fixedly installed on the front side of the base in a bilateral symmetry mode, a cutting saw is arranged on the upper side of the front portion of the supporting piece on the left side in a left-right sliding mode through an electric sliding block, and a pushing mechanism for pushing die steel materials in a fixed-length mode is arranged in the middle of the base. The positioning mechanism is in contact with the die steel material in a rolling contact mode, rolling contact points are evenly distributed in the upper direction, the lower direction, the left direction and the right direction of the die steel material, and therefore sliding friction between the positioning mechanism and the die steel material is prevented; and the cutting effect and the cutting precision of the die steel materials are guaranteed, the pushing plate is controlled to be not in contact with the die steel materials during reset movement through the control assembly, and the cutting effect and the cutting precision are further guaranteed.

The invention discloses a vibration reduction boring rod with a self-adaptive aperture supporting rod, and belongs to the technical field of machining. Comprising a boring rod body and a supporting rod, a cavity is formed in the position, close to a tool bit, of the boring rod body, four symmetrical grooves communicated with the cavity are formed in the cavity in the circumferential direction, the grooves and the cavity form an integrated hollowed-out part facilitating deslagging, the boring rod body is provided with a damping supporting device through the four grooves, and the damping supporting device is used for providing stable axial supporting for the boring rod. The damping supporting device comprises supporting rods, the front ends of the four supporting rods are movably connected with grooves in rod bodies through pin shafts and torsion springs, the torsion springs provide spring force for the supporting rods to be inclined and opened backwards all the time, and a plurality of universal balls arranged front and back are arranged on the outer sides of the supporting rods. When the boring rod feeds a workpiece, the universal balls make contact with the workpiece, the supporting rod provides stable circumferential supporting for the boring rod in the working process through the torsion spring, the supporting effect of the boring rod is improved, vibration is reduced, vibration in the part machining process is reduced, and the quality of the machined surface is improved.

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 high-pressure hydraulic machine comprises a hydraulic machine body, a bearing rack is arranged on the top face of the hydraulic machine body, and a supporting arm mechanism is fixedly assembled on the side face of the hydraulic machine body. The transverse supporting arm and the fixed longitudinal arm are fixed to the side of the hydraulic machine body, and the fixed longitudinal arm, the electric hydraulic push rod mechanism, the restraining and supporting platform plate and other structures are supported, so that the electric hydraulic push rod mechanism drives the plate restraining rotating roller mechanism to move transversely; the steerable plate restraining roller mechanism can be located at the side edge of a machined plate, so that a plate workpiece placed in the machined plate is laterally restrained, the position of the plate workpiece is located in the middle, the situation that the plate deflects and is disengaged is avoided, the plate restraining roller mechanism is greatly convenient to adapt to the working conditions that the plate structure is long, and continuous pushing is needed for section-by-section pressing forming, and the machining efficiency is greatly improved. The centering and stability of the plate workpiece are guaranteed, the machining stability is improved, and the forming machining efficiency is also improved.

The invention relates to the technical field of label printing, in particular to a label printing device for a marking machine, which comprises a base, a shell fixedly covers the base, a groove is formed in the top end of the base, a paper outlet is formed in one end of the shell in a penetrating manner, and a cutting mechanism is arranged at the position, close to the paper outlet, of the inner top wall of the shell. A paper tube is detachably and rotatably connected to the interior of the shell, thermo-sensitive paper is wound on the paper tube, a penetrating opening is formed in the top end of the shell in a penetrating mode, and the position of the penetrating opening corresponds to the position of the paper tube. According to the invention, not only can offset or inclined thermo-sensitive paper be corrected before printing work, but also continuous sliding friction between the heating block and the thermo-sensitive paper in the printing process can be effectively avoided, and the influence of the heating block with residual heat on the thermo-sensitive paper after use can be effectively avoided; and effective heat dissipation of the other heating blocks which do not move downwards can be achieved while normal printing of the heating blocks which move downwards is guaranteed, and then the printing quality and the printing efficiency of the device are guaranteed.

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 invention discloses a hollow shaft motor test loading mechanism, which comprises an extension shaft fixedly butted with the outer end of a motor shaft and a torque device for applying downward pressure to the motor shaft through the extension shaft, and is characterized in that the front end and the rear end of the extension shaft are respectively provided with a supporting stress point and a pressing stress point; the torque device provides upward supporting force F0 and downward pressing force F1 for the supporting force bearing point and the pressing force bearing point respectively, and the magnitude of the supporting force F0 and the magnitude of the pressing force F1 and the proportion of the supporting force F0 and the pressing force F1 are adjusted, so that the motor shaft bears loads exceeding the minimum load in the front end bearing and the rear end bearing in the motor. The device has the advantages that loads of the front end bearing and the rear end bearing are increased in a balanced manner, so that the rolling units can rotate along with rotation of the motor shaft, friction between the rolling units and the inner ring and the outer ring is rolling friction, sliding friction is avoided, and it is guaranteed that the front end bearing and the rear end bearing are not damaged in the test process of the hollow shaft motor; the structure is simple and reasonable, and operation is very easy.

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 relates to engineering machinery technical field discloses a kind of engineering machinery, telescopic arm and telescopic arm arm code detection device, wherein, telescopic arm arm code detection device includes support, pin shaft being installed on support and extending along first direction, spring being sleeved on pin shaft and fixed frame being installed to pin shaft and being opposite with support interval, spring is abutted to support and fixed frame, to when fixed frame can overcome spring elasticity and move along pin shaft towards the support when bearing pressure towards support, wherein, fixed frame is installed with guiding structure being arranged mutually interval in second direction perpendicular to first direction and inductive unit being arranged between guiding structure, guiding structure includes rolling element being installed on fixed frame, to when telescopic joint arm telescopes along second direction, it can be guided by the rolling element so that arm code block on it extrudes fixed frame, and telescopic state of telescopic joint arm is inducted by inductive unit, to avoid the situation that friction occurs between rolling element and arm code block.

The present invention relates to the technical field of cable installation, and discloses an optoelectronic combination cable installation device for bridge and culvert communication and a method for using the device, comprising an installation box, wherein a movable block is arranged in the installation box, a plurality of tooth plates are fixedly installed on the bottom inner wall of the installation box, an installation cavity is provided in the movable block, and further comprising: a movable mechanism, wherein the movable mechanism comprises a driving motor fixedly installed in the installation cavity, a rotating shaft is fixedly installed on the output shaft of the driving motor, the right end of the rotating shaft is rotatably connected to the installation cavity, and a connecting groove is provided on the bottom inner wall of the installation cavity; in the present invention, when the roller passes through a curve, a larger angle and a smaller angle are generated between the tooth plates, at which time the circular rod close to the smaller angle will contact the tooth plate at the curve, so that the device can continue to move, thereby improving the flexibility and adaptability of the device movement, and the cable can pass through the installation box more smoothly under the pulling of the movable block, thereby improving the installation efficiency of the cable.

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 relates to spring winding technical field discloses a waveform spring winding device, including base, the base top is provided with winding mechanism, the top of base is provided with collection mechanism, the top of base is provided with cutting mechanism, the top of base is provided with discharge mechanism, the top of base is provided with feeding device, the inside fixed connection of feeding device has heating pipe, the winding mechanism includes hydraulic pressure rod no.

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 finished product storage device for aluminum profile machining comprises a containing bin, classification partition plates, a U-shaped frame and a sliding plate, installation inserting grooves are evenly formed in the bottom of the interior of the containing bin, the classification partition plates are installed in the installation inserting grooves, through holes are evenly formed in one end of the containing bin, and the U-shaped frame is arranged in the containing bin. A U-shaped frame is installed at the end, close to the through hole, of the containing bin, sliding assemblies are installed on the two sides of the interior of the U-shaped frame, sliding plates are slidably installed on the inner sides of the sliding assemblies, and fixing insertion holes are formed in the ends, close to the U-shaped frame, of the classification partition plates. According to the aluminum profile storage device, the classification partition plates are installed, the multiple sets of installation inserting grooves are evenly formed in the containing bin, when the aluminum profile storage device is used, the classification partition plates can be inserted into the different installation inserting grooves, the distance between the two sets of classification partition plates can be adjusted, and a worker can adjust the size of the storage space according to the size of aluminum profiles.

The utility model relates to the technical field of vacuum coating, in particular to a roller structure of vacuum coating equipment and a conveying device, and aims to solve the problem that the coating quality and the service life of a support plate are influenced by the abrasion of the support plate caused by the friction between a flange of the conventional roller and the support plate. The utility model provides a roller structure of vacuum coating equipment. The roller structure comprises a roller body and a guide component, the plurality of guide assemblies are uniformly distributed around the axis of the roller body; the guide assembly comprises a guide wheel, and the guide wheel can rotate around the axis of the guide wheel; the axis of the guide wheel is perpendicular to the axis of the roller body. According to the utility model, the guide assemblies which are annularly and uniformly distributed are used for replacing flanges, and the guide wheels rotate to generate rolling friction with the side edges of the carrier plate, so that the sliding friction between the carrier plate and the flanges is avoided, and the abrasion degree of the carrier plate is reduced; and the guide wheels are in linear contact with the carrier plate, so that compared with surface contact of flanges, the contact area is smaller, the abrasion area is correspondingly reduced, and the abrasion of the carrier plate is further relieved.

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 relates to the field of switching valve technology, and in particular to a diaphragm-type one-way switching valve suitable for various adhesive viscosities. The valve includes a valve body, an adhesive inlet device, and an adhesive outlet device. The valve body has an adhesive inlet channel, an adhesive outlet channel, and a cavity. The adhesive inlet channel and the adhesive outlet channel are respectively connected to the cavity. An adhesive inlet valve chamber is provided between the adhesive inlet channel and the cavity, and an adhesive outlet valve chamber is provided between the adhesive outlet channel and the cavity. The adhesive inlet device includes an adhesive inlet cylinder, a first sealing mounting plate, and an adhesive inlet valve core rod. The first sealing mounting plate has a first transition hole penetrating the plate surface, and a first diaphragm is disposed within the first transition hole. The first sealing mounting plate is mounted on the adhesive inlet cylinder, and the adhesive inlet valve core rod is powered and mounted on the adhesive inlet cylinder. By changing the sealing method of the switching valve from the traditional V-type seal to a seal using a first diaphragm and a second diaphragm, sliding friction between the first and second diaphragms during operation is avoided, thereby increasing the service life of the device.

The application belongs to the technical field of additive manufacturing, and particularly relates to a metal 3D printing fine wire feeding device and an additive manufacturing equipment comprising the same. The fine wire feeding device comprises a shell assembly, a metal wire guiding assembly and a metal wire driving assembly. The shell assembly surrounds the metal wire driving assembly. The metal wire guiding assembly is installed in the shell assembly along the longitudinal direction. The metal wire penetrates through the metal wire guiding assembly and is fed by the metal wire driving assembly. The metal wire driving assembly comprises a driving wheel assembly, a driven wheel assembly and an anti-rolling assembly. The driving wheel assembly and the driven wheel assembly jointly constitute a clamping and conveying mechanism for the metal wire. The anti-rolling assembly comprises two side wall supporting discs which are symmetrically arranged on both sides of the metal wire and used for limiting the rolling of the metal wire in the horizontal plane. The problems of poor stability of fine metal wire conveying and difficulty in guaranteeing the quality of finished parts are solved.