94results about How to "Avoid sliding friction" patented technology

The present invention belongs to the technical field of semiconductor integrated circuit manufacturing, and discloses a wafer positioning device for a coating and developing machine, including a base and a pillar, a mounting cylinder is installed on the top of the pillar, a wafer is arranged above the mounting cylinder, a No. 1 cavity and a No. 2 cavity are provided inside the mounting cylinder, and an air pressure hole connected to the No. 1 cavity is provided, and a telescopic rod is installed in the inner cavity of the No. 1 cavity. This device adopts a relatively gentle way to realize the positioning function of the wafer, by providing a supporting mechanism to support the wafer in advance, and using a rotator to rotate the outer surface of the supporting column, so that the roller realizes the synchronous function of self-rotation and revolution, and can rotate and adapt the displacement of the wafer in any direction. This design realizes the full rotation support of the roller to the bottom of the wafer, completely avoiding the sliding friction of the supporting component to the wafer due to the relative displacement during the positioning process, and greatly reducing the wear and damage of the wafer.

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.

The invention provides a decorative paper printing defect detection device, and relates to the technical field of printing defect detection.A detection device body comprises a supporting assembly, an extrusion assembly and a detection assembly, a track is built at the top of the supporting assembly, a winding shaft and a unwinding shaft are inserted into the two ends of the track respectively, and the extrusion assembly is placed on the surface of the track; a supporting plate is installed at the bottom end of the extrusion assembly, a sliding block is integrally formed at the bottom of the supporting plate, the sliding block is integrally embedded into the track, and the detection assembly comprises a shading mechanism and a pressing mechanism. The decorative paper in the undetected area is transferred in a clamping and pulling mode, the decorative paper in the pulled area can be tensioned in the process, the wrinkling phenomenon is avoided, meanwhile, sliding friction between the surface of the decorative paper and the shading mechanism part can be avoided, and the protective effect on the surface of the decorative paper is improved.

The invention relates to the technical field of cable installation, and discloses photoelectric combined cable installation equipment for bridge and culvert communication and a using method, the photoelectric combined cable installation equipment comprises an installation box, a movable block is arranged in the installation box, a plurality of toothed plates are fixedly installed on the inner wall of the bottom of the installation box, an installation cavity is formed in the movable block, and the photoelectric combined cable installation equipment further comprises a movable mechanism, the movable mechanism comprises a driving motor fixedly mounted in the mounting cavity, a rotating shaft is fixedly mounted on an output shaft of the driving motor, the right end of the rotating shaft is rotationally connected with the mounting cavity, and a connecting groove is formed in the inner wall of the bottom of the mounting cavity; when the rotating roller passes through a curve, a large included angle and a small included angle can be generated between the toothed plates, at the moment, the round rod close to the small included angle can make contact with the toothed plate at the curve, the device can continue to move, and the flexibility and flexibility of movement of the device are improved; and the cable can pass through the mounting box more smoothly under the pulling of the movable block, so that the mounting efficiency of the cable 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 invention relates to the technical field of plate stacking, and particularly discloses a processing device for fiberboard production, which comprises a conveying mechanism, a cutting mechanism and a stacking mechanism, the cutting mechanism and the stacking mechanism are respectively arranged at two ends of the conveying mechanism, and the processing device further comprises a feeding mechanism arranged at the rear end of the conveying mechanism; the feeding mechanism comprises two telescopic rods symmetrically installed at the rear end of the conveying mechanism, the front ends of the telescopic rods are installed on the conveying mechanism, a synchronous assembly used for controlling the extension amount of the telescopic rods to be the same is installed between the two telescopic rods, and reset assemblies used for enabling the telescopic rods to restore to the contraction state are installed on the telescopic rods. The bearing face, used for bearing the fiberboard, of the supporting rod is lower than the bottom face of the fiberboard on the feeding mechanism, when the dragging wheel does not make contact with the fiberboard on the stacking mechanism, the spring rod extends under the gravity action of the fiberboard on the supporting rod, the control assembly enables the supporting rod to move backwards relative to the baffle, and therefore the supporting rod is separated from the borne fiberboard, and stacking is completed.

The utility model discloses an underground pipe gallery inspection disposal robot which comprises a first robot and a second robot, the tail end of the first robot is movably connected with the head end of the second robot, and the top of the first robot is connected with a rail through a driving wheel set. The driving wheel set is connected with the first robot and the second robot through slewing bearings, the bottom of the first robot is connected with a five-axis mechanical arm, the end of the five-axis mechanical arm comprises a camera shooting assembly and a fire extinguishing spray head, the second robot comprises a fire extinguisher, and the fire extinguisher is connected with the fire extinguishing spray head. The beneficial effects of the utility model are that the robot can adapt to detection and walking at small space, corners and the like, is stronger in adaptability, is expanded in inspection engineering, and makes up the blind area and dead point of machine monitoring.

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 utility model relates to a drawer type bearing mechanism which comprises a movable rail used for bearing a bearing plate assembly, an elastic assembly is arranged between the bearing plate assembly and the movable rail, the bearing plate assembly is arranged on the movable rail in an up-and-down elastic floating mode through the elastic assembly, and when the bearing plate assembly is in a bearing state, the elastic assembly is arranged on the movable rail. The elastic assembly is elastically limited and deformed between the supporting plate assembly and the movable rail. The supporting plate assembly floats upwards on the movable rail due to elasticity, so that when the supporting plate assembly is pulled on the cabinet body, the bottom of the supporting foot piece does not make contact with the supporting face, sliding friction between the supporting foot piece and the supporting face in the storage process of the supporting plate assembly is avoided, and then the anti-abrasion effect is achieved; when the elastic component is compressed, the supporting foot piece is contacted with the supporting surface.

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 relates to the technical field of photovoltaic module welding, and discloses a welding and cutting integrated tool for a photovoltaic module, which comprises a pressure welding and cutting assembly, an operating rod and a heating assembly, the pressure welding cutting assembly comprises a heat insulation head and a pressure welding cutting roller rotationally connected to the heat insulation head. The heating assembly is electrically connected with the pressure welding cutting roller so as to heat the pressure welding cutting roller to enable the heating temperature to be higher than the welding material melting point and lower than the battery piece heat damage temperature; the outer wall of the pressure welding cutting roller is gradually concave inwards towards the axis from the left end part to the right end part to the middle part, so that arc-shaped grooves are formed in the top surface and the bottom surface of the longitudinal section of the pressure welding cutting roller, and the longitudinal section of the pressure welding cutting roller is integrally H-shaped; the heat insulation head is connected with the operating rod so as to drag the operating rod to drive the pressure welding cutting roller to roll on the surface of the welding material, and the operating rod is pressed downwards to enable the pressure welding cutting roller to apply pressure to the surface of the welding foil. Therefore, the tool can realize cutting and pressure welding of the welding foil in one step, the process is greatly simplified, the cost is low, and the damage to the battery piece is small.

A V-shaped telescopic thrust rod comprises a left telescopic thrust rod body and a right telescopic thrust rod body which are arranged between a frame and a wheel axle in a V shape, the left telescopic thrust rod body and the right telescopic thrust rod body each comprise a thrust cylinder with the two ends closed, the thrust cylinders are installed on the wheel axle through spherical bearings, and thrust cavities are formed in the thrust cylinders; a thrust cavity is formed in the thrust cylinder, a thrust piston is installed in the thrust cavity and divides the thrust cavity into two oil cavities which are independent of each other, hydraulic oil is arranged in the oil cavities, the two ends of the thrust piston are fixedly connected with thrust rod bodies, and the other end of the thrust rod body close to one side of the frame extends out of the thrust cylinder from the thrust cylinder and is connected with the frame through a spherical bearing. The other end, close to one side of the wheel axle, of the thrust rod body extends out of the thrust cylinder from the interior of the thrust cylinder and extends to the outer side of the thrust cylinder. Axial force borne by the dragging arm can be effectively reduced, reasonable amount of motion is provided for the wheel axle, tires and the connecting position of the dragging arm and the frame can be protected, and safety is good.

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 utility model provides flatness measuring equipment, which comprises a base, a stand column arranged on the edge of one side of the upper surface of the base, an adjusting arm arranged on the upper side of the base, a first vertical hole processed at one end of the adjusting arm, a second vertical hole processed at one end of the adjusting arm far away from the first vertical hole, and a digital display altimeter inserted in the second vertical hole and used for measuring flatness. A first clamping lug and a second clamping lug matched with each other are installed at the end, close to the second vertical hole, of the adjusting arm, a third clamping lug and a fourth clamping lug matched with each other are installed at the end, close to the first vertical hole, of the adjusting arm, a small knob head is arranged on the side, away from the second clamping lug, of the first clamping lug, and a large knob head is arranged on the side, away from the third clamping lug, of the fourth clamping lug. One side of the small knob head is provided with a connecting piece used for reducing the width of the first gap, and one side of the large knob head is provided with a connecting piece used for reducing the width of the second gap.

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 utility model discloses a lifting transmission mechanism for air conditioner controller assembly, which comprises a mounting bin, a mounting rack and a base, one end of the base is provided with a fixing plate, the inner side of the fixing plate is provided with a second sliding assembly, and one end of the second sliding assembly far away from the fixing plate is slidably provided with a lifting support plate. A mounting frame is mounted at the top of the lifting supporting plate, a conveying belt is mounted in the mounting frame, and a mounting bin is mounted at the end, away from the fixing plate, of the mounting frame. The conveyor belt lifting device is provided with the lifting supporting plate, the first threaded rod, the supporting rod, the first threaded pipe and the second sliding assembly, when the conveyor belt lifting device is used, the first threaded rod can be rotated clockwise or anticlockwise, so that the first threaded pipe moves through threads, the supporting rod is stressed to push or pull the lifting supporting plate to move, and the conveyor belt can be lifted to different heights; and the air conditioner controller part can be lifted and conveyed to a specified height position according to requirements.

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 present invention discloses an adjustable ship external anti-collision component, including a plurality of airbag-type fender bodies arranged and installed on the outside of the ship, the airbag-type fender body including a fixed plate, a support frame, a moving part and an airbag body; the support frame is provided with two pieces, both of which are fixed on the outside of the fixed plate, the fixed plate is fixed on the outside of the ship, the moving part is clamped between the two support frames, and its direction can be changed. The present invention drives the ship to move up and down through wind and waves, and the airbag body squeezed by the dock is attached to the dock. Under the action of the up and down movement of the ship, the airbag body rolls along the dock, avoiding sliding friction with the dock, so that the airbag body remains intact, the service life and stability are improved, the situation of excessive force on a single point is reduced, the ship and dock facilities are protected, a certain degree of angle compensation is achieved, and the ship can dock more smoothly.

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 present invention discloses a stamping forming machine for metal material processing, which relates to the technical field of stamping equipment, and comprises a machine body, wherein a cylinder is fixedly connected to the top corner of the machine body, and a platform is fixedly connected to the top of the cylinder, and a stamping mechanism comprises a lifting column fixedly installed at the center of the top of the platform, and a stamping die is fixedly connected to the output end of the lifting column, a pressing roller is rotatably connected to the bottom of the stamping die and close to the cavity, and a conical wheel is fixedly connected to the outer cylindrical end of the pressing roller, and an auxiliary component is arranged on the side surface of the stamping die, and a material discharge component comprises a fixed die fixedly installed at the center of the top of the machine body by screws, and a supporting module is arranged on the side surface of the fixed die and close to the auxiliary component. The stamping forming machine for metal material processing achieves an anti-wear effect, and the stamping is fast and accurate, and the wear on the metal sheet is reduced, so that the stamping effect is good.

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 relates to the field of electrical equipment, and discloses a roller structure, a mopping system and cleaning equipment, the roller structure can effectively clean corner areas, the telescopic process of a roller assembly is stable, and secondary pollution and obstacle avoidance can be avoided. The roller structure comprises a roller assembly, a guide rail mechanism and a telescopic mechanism. The guide rail mechanism is arranged between the first support and the roller assembly, and the roller assembly telescopically moves relative to the first support through the guide rail mechanism. The telescopic mechanism comprises a first control assembly and a second control assembly, the first control assembly is arranged on the guide rail mechanism, and when the acting force of the second control assembly on the roller assembly is smaller than that of the first control assembly on the roller assembly, the first control assembly drives the roller assembly to stretch out relative to the first support. When the acting force of the second control assembly on the roller assembly is larger than that of the first control assembly on the roller assembly, the second control assembly drives the roller assembly to retract relative to the first support.