48results about How to "Guaranteed friction" patented technology

The invention discloses a punch forming device for producing an automobile engine oil pan, and relates to the technical field of punch forming, and the punch forming device comprises a composite mechanism. According to the punch forming device for production of the automobile engine oil pan, through the design of the composite mechanism, materials are placed in the processing mechanism and conveyed to the composite base through the processing mechanism, then a movable cross beam is controlled through a hydraulic column to enable a pressing module to extrude a bearing module, and therefore the punch forming effect is achieved; the effect of manually laying materials is reduced, potential safety hazards of operators are reduced, the operation environment is optimized, after long-time operation of the bearing module, parts can be seriously abraded, and therefore the stamping precision of follow-up materials is affected, the bearing module can be replaced, and in the process that the pressing module extrudes the materials towards the bearing module, the pressing module can be replaced, and the pressing module can be replaced. And the magazine mechanism contracts to store force, so that after stamping is finished, ejection is performed through the magazine mechanism, the effect of preventing material adhesion is achieved, and the subsequent operation efficiency is prevented from being influenced.

The utility model discloses an anti-skidding ceramic bowl which comprises a ceramic bowl body and an anti-skidding assembly. According to the anti-skid ceramic bowl, when the ceramic bowl body is used, the multiple sets of second friction blocks arranged at the lower end of the base at the bottom of the ceramic bowl body can guarantee the anti-skid effect of the ceramic bowl body in the placing process, and when the anti-skid requirement is too high, the ceramic bowl body can be screwed downwards, so that the stud at the bottom of the ceramic bowl body extrudes the movable disc in the base, and the anti-skid effect is achieved. The movable blocks on the two sides of the bottom of the movable disc are pressed to move downwards, so that the friction force of the ceramic bowl body in the placing process is ensured through the multiple sets of first friction blocks on the lower portions of the movable blocks, the anti-skid performance of the ceramic bowl body in the using process is enhanced, and meanwhile the anti-skid degree is adjusted through rotation adjustment of the ceramic bowl body; the whole height of the ceramic bowl body can be adjusted by holding the base installed at the bottom of the ceramic bowl body, the anti-scalding performance of the ceramic bowl body in use can be achieved by holding the base installed at the bottom of the ceramic bowl body, and therefore the practicability of the ceramic bowl body in use is comprehensively improved.

The utility model belongs to the technical field of cleaning supplies, and particularly relates to a layered solid toilet cleaner which comprises a toilet cleaner body, a packaging assembly is arranged outside the toilet cleaner body, and the problems that functional components of the solid toilet cleaner are unreasonably released, and packaging is not easy to tear are solved. When the toilet cleaner is used, a user can hold the anti-slip lines on the surface of the soluble film with one hand, so that the toilet cleaner body can be firmly held, the tearing piece is pinched with the other hand, tearing is carried out along the direction of the second indicating arrow, the outer-layer protective film is torn along the tearing line, a section of the toilet cleaner is exposed, and at the moment, the exposed toilet cleaner body can be held with the hand, and the other half of the outer-layer protective film is taken down. The surface of the toilet cleaner body is wrapped with the easily-soluble film, so that hands are prevented from making contact with the surface of the toilet cleaner body, the easily-soluble film can be rapidly dissolved after making contact with water, use of the toilet cleaner is not affected, and the problem that the package is not easy to open is effectively solved.

The invention relates to a reverse friction buckling-restrained energy dissipation support and a control method, the reverse friction buckling-restrained energy dissipation support comprises a buckling-free energy dissipation unit, a forward constraint unit and a reverse constraint unit, and the forward constraint unit is arranged at one end of the buckling-free energy dissipation unit and is in sliding connection with the end of the buckling-free energy dissipation unit; the reverse constraint unit is arranged at the other end of the buckling-free energy dissipation unit and is fixedly connected with the end of the buckling-free energy dissipation unit; wherein the forward constraint unit and the reverse constraint unit are oppositely arranged, and when the support bears an axial load, the forward constraint unit and the reverse constraint unit respectively follow different end parts of the buckling-free energy dissipation unit to move in opposite directions, so that a reverse friction mechanism is realized. According to the reverse friction buckling-restrained energy dissipation support and the control method, the double-order yield of the buckling energy dissipation support is fused with the support limiting device, meanwhile, the friction force in the energy dissipation core of the buckling restrained support is self-balanced, the deformation uniformity of the support is improved, and therefore the fatigue performance is improved. The overall structure of the support is free of numerous external additional devices, low in manufacturing cost and convenient for engineering application.

The invention provides an arc surface positioning and punching device for driving shaft machining and an operation method of the arc surface positioning and punching device, and relates to the field of punching. According to the arc surface positioning and punching device for machining the driving shaft and the operation method of the arc surface positioning and punching device, swing supports are installed on a base, supported through elastic pieces, provided with triangular structures and rotate around rotating shafts of the swing supports when stressed, the two sets of swing supports are symmetrically arranged, and pressure applying wheels and supporting wheels are rotatably arranged on the swing supports. The pressure applying wheel is used for applying pressing force to the driving shaft, and the supporting wheel is used for supporting the driving shaft; according to the arc surface positioning and punching device for driving shaft machining and the operation method of the arc surface positioning and punching device, rapid positioning and alignment can be achieved, driving shafts with different diameters can be automatically adapted, the driving shafts are directly driven through the friction force between an anti-skid belt and the driving shafts, circumferential angle adjustment is achieved, a winding wheel is controlled to rotate through a double-shaft servo motor, and the working efficiency is improved. And moving the unworn new section of the anti-skid belt to a contact area with the driving shaft to replace the original worn contact surface.

The utility model discloses a gearbox housing snatchs the grab hand belongs to gearbox production technical field. The device includes hoisting subassembly, and hoisting subassembly output is provided with the hoisting plate, and the front clamping plate is fixedly arranged in the hoisting plate front side, and the back clamping plate that cooperates with the front clamping plate is movably connected to the hoisting plate rear end, and the hoisting plate is provided with the clamping mechanism that is used for driving the back clamping plate bottom to draw close to the front clamping plate to hold the gearbox housing for cooperation, and the vertical vibration motor that is used for generating the up and down direction vibration is fixedly arranged on the front clamping plate top. The utility model discloses when using, and the vertical vibration motor is with 200 300Hz high frequency micro amplitude vibration direct action on the shell joint surface, and only needs 5 seconds to make the up and down shell body and internal component accurate adhesion, and the efficiency is improved. The first, second cooperation piece of rubber material guarantees friction force and prevents slipping, and also avoids shell surface damage, and the vibration energy is evenly transmitted through the contact surface simultaneously, thereby improve the overall assembly efficiency.

The application relates to the technical field of welding platforms, and discloses a three-dimensional welding platform with a protection structure, which comprises a machining table, a horizontal moving component is fixedly installed at the front side edge of the machining table, a lifting component is arranged at the top of the horizontal moving component, a deflection component is fixedly installed at the top of the lifting component, a protection plate is fixedly installed at the top of the deflection component, and an adjusting component is fixedly installed at the left end of the deflection component. When welding workpieces at different positions on the top of the machining table, the left hand holds the holding handle, then walks leftward and rightward, the demand for face protection is met, the left hand holds the holding handle again, the pressing switch is pressed by fingers, the output end of the electric push rod is elongated, the mounting plate is driven to move upwards along the guide rod, the holding handle is pushed by the left hand, the rotating shaft rotates in the shaft sleeve, the inclination angle of the protection plate is adjusted, and the purpose of protecting the operator in a large area is achieved.

The utility model discloses a roll adjusting device of a roll grinder, which belongs to the technical field of roll grinders and comprises a first electric guide rail and a protective mechanism, the surface of the first electric guide rail is slidably connected with a clamp seat, the protective mechanism comprises a protective cylinder fixedly connected to the top of the clamp seat, and the inner wall of the protective cylinder is rotatably connected with a screw rod. A first servo motor is fixedly connected to the inner wall of the clamp base, an output shaft of the first servo motor is fixedly connected to the bottom end of a lead screw, a placing base is slidably connected to the inner wall of the protective cylinder, and the surface of the lead screw is in threaded connection to the lower end of the inner wall of the placing base. By means of the mode, the surface of the lead screw is enclosed through the protective cylinder, metal chippings generated in the grinding process are prevented from being attached to the surface of the lead screw, abrasion between the lead screw and the containing base is reduced, the installation effect of the roller is guaranteed, friction between the rotating roller and the containing base is reduced through the balls, and it is guaranteed that the roller is smooth in the rotating process.

The utility model provides a safety protection device for a horizontal machining machine tool base, and relates to the technical field of horizontal machining machine tool bases. The horizontal machining machine tool base comprises a base body, a strip-shaped groove is formed in the base body, and the safety protection device comprises two L-shaped plates. Mounting lugs are mounted at the bottoms of the two L-shaped plates, and two-way threaded rods are connected to the two mounting lugs in a penetrating and threaded mode; an anti-slip strip is detachably mounted on one side of the L-shaped plate; a felt is adhered between the two L-shaped plates; a rotating ring is mounted in the center of the outer side of the two-way threaded rod; an L-shaped groove is formed in the L-shaped plate, the L-shaped plate is provided with a hook face hook-and-loop fastener through the L-shaped groove, the device is plugged into the strip-shaped groove, the anti-slip strip is extruded and fixed into the strip-shaped groove by means of friction force between the anti-slip strip and the base body, the strip-shaped groove is covered with the felt, and therefore the phenomenon that in the machining process of a machine tool, the anti-slip strip is prone to falling off is avoided as much as possible. And scattered metal chips are clamped in the strip-shaped grooves which are not used.

The utility model discloses a synchronous speed -regulation's glass -steel traction machine antiskid clamping mechanism, including mounting panel, the symmetrical bottom plate that is equipped with on mounting panel, is equipped with the top plate through the lifting assembly on mounting panel, is equipped with synchronous conveying assembly between two bottom plates, two top plates, the symmetrical limit mechanism that is equipped with in two ends of two top plates, limit mechanism and lifting assembly are matched. The utility model lifting assembly lower supporting plate is fixedly connected with mounting panel through fixed column, can play the guiding and spacing effect in the glass -steel conveying traction process, avoid the deviation of glass -steel, guarantee the accuracy of conveying direction, the upper clamp plate in spacing mechanism is connected with the connecting plate through buffer assembly, and is matched with lower supporting plate, in the glass -steel conveying traction process, can cooperate lifting assembly and carry out the clamping and fixing and spacing of glass -steel, effectively prevent the deviation of glass -steel, guarantee the smooth operation of traction process.

The utility model provides a self-adjusting balance device for lifting a fireproof curtain, which belongs to the field of stage performance equipment and comprises a balance plate, rigging turnbuckles and connecting supports. The connecting support is mounted in the center of the top edge of the fireproof curtain, and the balance plate is connected with the connecting support through a rotating shaft; one end of the rigging turnbuckle is connected with the balance plate through a connecting pin shaft, and the other end is connected with the lifting steel wire rope; the connecting support is further provided with a pair of baffles, and when the balance plate rotates around the rotating shaft to the position where the lower edge of the balance plate makes contact with the baffles, the limiting position is achieved. And the distances between the two connecting pin shaft holes in the balance plate and the rotating shaft hole are equal. The device solves the problems that two lifting steel wire ropes for lifting an existing fireproof curtain are unequal in tensile force and inconsistent in length, so that the fireproof curtain inclines, the abrasion of a guide rail is increased, even the clamping stagnation phenomenon occurs, meanwhile, the abrasion of the steel wire ropes with large stress is increased, and the service life is shortened, ensures that the fireproof curtain does not incline and deviate, and improves the safety of the fireproof curtain. Friction of the guide rail is reduced.

The utility model discloses a work piece feeding device for bamboo wood component drilling equipment, which comprises a drilling workbench and a feeding mechanism, the feeding mechanism comprises a group of isolation plates, and corresponding baffle plates are respectively and fixedly connected between the upper parts of two sides of the isolation plates; the material separating assembly comprises a set of S-shaped blocking and pushing pieces which are installed on the lower portion of the baffle in a swinging mode, and the S-shaped blocking and pushing pieces are driven by a set of synchronous pushing air cylinders respectively; the separation discharging assembly comprises a set of conveying belts, and the conveying belts are installed between the corresponding tensioning rollers in a tensioning mode; the middles of the tensioning rollers are arranged in a concave mode, the middles of the tensioning rollers located on the lower portion are fixedly connected with corresponding cylindrical magnet pieces in a sleeved mode, and the middles of the conveying belts are movably provided with corresponding bearing plates. And the material pushing stop block is used for pushing the bamboo and wood components to the drilling station of the drilling workbench one by one. According to the feeding device, excessive friction of the bamboo components in the feeding process can be avoided, and feeding smoothness can be effectively guaranteed.

The invention belongs to the technical field of power accessories, and particularly discloses a line fixing device for a power distribution cabinet, which comprises a shell, a transmission wheel is rotatably mounted in the shell through a shaft, a rotating plate is fixedly connected to one side of the outer wall of the transmission wheel, and yoke plates which are uniformly distributed are fixedly connected to the outer wall of the rotating plate. A linkage ring is fixedly connected to the outer wall of the linkage plate, a second adjusting wheel is fixedly connected to the outer wall of the linkage ring, the second adjusting wheel is inserted and rotationally connected to the outer wall of the shell, a pressing plate is fixedly installed in the shell, and cable holes allowing cables to penetrate through are formed in the upper face and the lower face of the outer wall of the shell. A buffer assembly is arranged on one side of the outer wall of the shell, a cable penetrates through a cable hole in the lower side of the shell, and convenient adjustment of the cable inside and outside the shell is achieved through rotation of a second adjusting wheel and a transmission wheel, so that a user can easily adjust the cable whether the user is inside or outside the power distribution cabinet.

The utility model discloses an anti-slip knurled door handle, belongs to the technical field of household articles, and aims to provide a knurled door handle with more stable anti-slip effect, the knurled door handle comprises a holding handle, the outer side surface of the holding handle is fixedly connected with a plurality of friction salient points, one end of the holding handle is fixedly connected with a connecting handle, and the connecting handle comprises an extension shaft; the end of the extension shaft is fixedly connected with a lock shaft sleeve through a limiting baffle ring, and a rotation stopping groove is formed in the end face of the lock shaft sleeve. According to the door handle, the protruding friction structure is arranged on the holding part of the handle, so that the friction structure is not prone to being completely covered by sliding substances on the door handle, the handle can be in contact with the palm with a larger probability, friction force is guaranteed, and the anti-sliding performance of the handle is more stable; the friction salient points are fixed in the countersunk grooves formed on the outer surface of the holding handle due to knurling, so that the friction salient points are connected with the holding handle very stably, and the whole handle has the appearance similar to a bitter gourd and has a certain decorative purpose.

The utility model relates to the field of gaskets, in particular to a double-layer stacked saddle-shaped gasket which comprises a main body ring and a limiting ring, the main body ring is in a saddle shape, the limiting ring is also in a saddle shape, the limiting ring is arranged in an inner hole of the main body ring, and the outer side wall of the limiting ring is partially or completely contacted with the inner side wall of the main body ring. The thickness of the limiting ring is larger than that of the main body ring, and two abutting blocks are further arranged on the upper surface of the limiting ring. The limiting ring and the main body ring which are different in thickness are arranged, so that the position of the tightened bolt is limited through the limiting ring, the main body ring can be kept bent to a certain degree, and the anti-loosening performance is kept.

The utility model relates to the technical field of road construction, in particular to a road curb mounting device. Comprising a base, a second telescopic motor, a transverse rod frame, a driving motor, a lead screw and a sliding block are installed at the top of the base, a mounting frame is installed below the sliding block, a third telescopic motor is installed in the mounting frame, a rotating transverse rod is connected to the lower portion of the third telescopic motor, and first connecting rods are rotationally connected to the two ends of the rotating transverse rod; a clamping rod is connected to the lower portion of the first connecting rod through a rotating shaft, and a clamping plate is integrally welded to the bottom of the clamping rod. When the device is used, a third telescopic motor pushes a rotating cross rod to ascend and descend, the rotating cross rod pushes a clamping rod and a clamping plate to unfold or clamp a curb through a first connecting rod, a second telescopic motor pushes a cross rod frame to ascend, and a driving motor drives a sliding block and the curb to move towards an installation foundation pit through a lead screw; and then the position of the curb is adjusted through the sliding block, operation can be conducted by a single person through the mode, and time and labor are saved during installation.

The utility model relates to a kind of toy moving device and toy car, and toy car is provided with toy moving device.In toy moving device, by setting mutually adaptive anti-skid convex part and anti-skid profiling groove structure, and make it be located on wheel frame and bead respectively, on the basis that bead is supported in wheel frame, further formed the physical inlay and interlocking mechanism between wheel frame and bead.Consequently, it significantly enhances the mechanical meshing action force between wheel frame and bead in circumferential and / or axial direction, fundamentally overcomes the inherent defects of simply relying on friction transmission, ensures that rim and tire can still reliably transmit torque under long-term dynamic load.Secondly, the mutual adaptation of anti-skid convex part and anti-skid profiling groove on profile can increase the contact area of rim and bead, so that stress transmission can be carried out through larger area, to avoid excessive wear between rim and tire due to stress concentration, thereby further consolidating the anti-skid effect.

The utility model relates to the technical field of disc brakes, and discloses a bicycle disc brake module which comprises a frame used for connecting a brake module and a bicycle body, the right end of the frame is fixedly connected with a combination convex part, and the upper end and the lower end of the combination convex part are meshed with a first bolt and a second bolt respectively. The surface of the first bolt is sleeved with a first gasket and a third gasket, the surface of the second bolt is sleeved with a second gasket and a fourth gasket, and the spherical surface combination part is used for adjusting the angle of the brake module. Through the angle adjusting device composed of the spherical surface combination part, the connecting assembly and the first brake assembly, multi-angle adjustment and installation can be achieved, operation is more convenient during installation and arrangement, the brake disc clamping device can be suitable for adjustment of brake discs of more sizes, the brake disc clamping area can be adjusted and controlled, the friction area can be adjusted, and the service life of the brake disc is prolonged. And then the braking sensitivity is ensured by controlling the friction area, so that the durability of the disc brake is improved.

This utility model provides a conveying device at a conveyor junction, relating to the field of conveyor technology. It includes a belt conveyor with a flat belt at its top and a motor at its bottom. A power shaft is located on one side of the motor, and two mounting brackets are located on top of the power shaft. Each mounting bracket has a rotating shaft bracket on its top, and a connecting plate is located on one side of each rotating shaft bracket. The drive pulley is connected to the driven pulley via a bevel gear meshing on its shaft. During conveyor operation, the power shaft drives the round belt via a series of transmissions. Material entering the connecting plate is slightly squeezed by the round belts on both sides, and the friction causes the material to move to the right. A roller is located in the middle of the bottom of the two mounting brackets to reduce material sliding resistance and accommodate small-sized materials. This device utilizes two pairs of meshing bevel gears to ensure that the friction force on both sides of the material is directed to the right, solving the problem of insufficient power supply in transition devices leading to uneven transitions and incomplete material discharge.

The utility model discloses a shell clamp type waste acid concentration pump, which relates to the technical field of pump bodies, and comprises a support frame and a motor, the right side surface of the motor is provided with a sealing protection assembly, and the motor drives a pump coupler to drive a pump shaft to rotate, so as to ensure that the rotating torque of the motor can be effectively transmitted to a pump body to bear the work of balancing load. The arranged bearing can bear radial force and axial force generated in the operation process of the pump rotor, support rotation of the impeller, ensure the use stability of the pump body, reduce friction force, improve the overall transmission efficiency and reduce energy consumption, a lubricating oil film formed in the rotation process of the bearing can isolate impact and vibration between components, and the service life of the pump body is prolonged. The mechanical seal moving ring and the mechanical seal static ring are arranged, the mechanical seal static ring can fix the impeller to a proper position, the impeller is prevented from generating too large deviation or movement, the mechanical seal static ring can play a role in buffering and damping under the flow and pressure of a pump, and the mechanical seal is prevented from being damaged due to excessive vibration.

The utility model relates to the technical field of household cleaning electric appliances, in particular to a scrubber power-assisted mechanism which comprises a base, a connecting frame, a swing arm, a limiting element and a power-assisted wheel, the connecting frame is arranged on one side of the base, a rotating shaft is arranged at one end of the swing arm, and a mounting part is arranged at the other end of the swing arm. The swing arm is movably mounted on one side of the connecting frame through a rotating shaft, a tension element is arranged on the side, away from the rotating shaft, of the connecting frame, one end of the tension element is connected with the swing arm and used for providing tension for the swing arm, the limiting element is used for limiting movement of the swing arm, and one end of the power assisting wheel is mounted on the mounting part. The power-assisted wheel can continuously apply pressure to the ground through the tension provided by the tension spring, so that the friction force between the power-assisted wheel and the ground is kept, and the slipping of the power-assisted wheel caused by insufficient friction force is overcome.

The application discloses an automatic soldering machine for electric vehicle controller circuit boards and relates to the technical field of soldering machines.The technical scheme is as follows: the automatic soldering machine comprises a workbench, a moving table, a placing frame, a pressing plate, a pushing mechanism and a mounting rack, the top end of the placing frame is provided with a placing groove for placing circuit boards, the bottom end of the pressing plate is provided with a plurality of sleeves, each sleeve is slidably connected with a supporting column, the pushing mechanism is used for pushing each supporting column to extend downward until abutting against elements on the circuit board, and the mounting rack can be turned over and placed on the moving table, so that the turned-over supporting columns support each element from below, thereby supporting the elements on the circuit board during soldering and reducing displacement or falling of the elements during soldering.

This invention provides a pile foundation structure for offshore wind turbine towers, belonging to the field of offshore wind power technology. The pile foundation structure includes a pile cylinder extending vertically along its axis and cast-in-place piles fixedly installed at the bottom of the pile cylinder. The pile cylinder and the cast-in-place piles are coaxially arranged. Each cast-in-place pile includes a pile tube. Multiple support fins extending along the axial direction are fixedly installed on the outer wall of the pile tube, evenly distributed along the circumference of the pile tube. A protective cylinder is slidably sleeved on the outer wall of the pile cylinder. A fixing plate is fixedly sleeved on the outer wall of the pile cylinder, located above the protective cylinder, to limit the movement of the protective cylinder along its axial direction. A protective frame is fixedly sleeved on the bottom of the outer wall of the protective cylinder. The protective frame includes a fixing disc coaxially arranged with the protective cylinder. Two sets of protective components are fixedly installed at the bottom of the fixing disc to prevent the pile cylinder from sinking and tilting due to geological changes after long-term use.

This invention relates to the technical field of material transfer devices, specifically a method for conveying slotted cylinder liners. This method utilizes an adaptive rotating roller conveyor to transfer slotted cylinder liners from a loading station to a unloading station. The method includes the following steps: placing the slotted cylinder liner onto a material tray, ensuring the concave groove of the cylinder liner is embedded in the limiting block on the tray; starting a reducer to drive a drive sprocket and chain, which in turn drives the rollers to rotate. The rollers include a drive roller and driven rollers, with the drive roller driving each driven roller via a chain; the material tray is transferred from the loading station to the unloading station under the frictional force generated by the drive roller and driven rollers; when the rollers are fully loaded, the pulley on the driven roller rotates freely, and the driven roller does not rotate. This invention reduces friction and wear between the rollers and material trays when the roller conveyor is fully loaded, thus extending the service life of both.

The utility model provides a titanium alloy sheet strain fatigue buckling prevention device structure which comprises a first supporting frame and a second supporting frame which are of an I-shaped structure and arranged oppositely, screw holes formed in the two ends of the first supporting frame and the two ends of the second supporting frame respectively, and fastening bolts matched with the screw holes in size and identical to the screw holes in number. The first supporting frame and the second supporting frame are the same in structure, and the fastening bolts are screwed into the screw holes to fixedly connect the first supporting frame and the second supporting frame. The buckling-restrained device for the strain control fatigue test of the titanium alloy thin plate has the advantages that the distance between the supporting frame and the sample groove is adjusted by arranging the gaskets with different thickness specifications, so that the test requirements of thin plate samples with different thickness specifications can be met, and the applicability of the buckling-restrained device is improved.

The utility model relates to the technical field of varnished wire detection, in particular to a varnished wire finished product quality rapid detection device which comprises two fixing discs, two limiting blocks and a base, the two fixing discs are arranged on the surfaces of the limiting blocks respectively, one side of each fixing disc is connected with a driving motor, the two limiting blocks are connected through a spring rod, and the spring rod is connected with the base. A sliding way is arranged on the side portion of the base, the limiting block is connected to the surface of the sliding way in a sliding mode, a detection frame is arranged on the surface of the base, and a friction block and two fixing disc spring rods installed on the sliding block are installed at the front end of the detection frame. And whether the self-rotating column rotates or not can be controlled by dismounting the fixed pin on the detection frame, so that different wear conditions of the friction block in a rolling state and a static state are tested, and test scenes of the enameled wire are increased.

The utility model relates to the technical field of road cleaning, and provides an auxiliary engine driven double-fan structure and a high-speed road sweeper. The output end of an auxiliary engine is connected with the input end of a belt wheel transmission assembly, the output end of the belt wheel transmission assembly is connected with a first fan, an adjusting plate is arranged on a mounting frame, and an adjusting frame is movably arranged on the upper portion of the adjusting plate through a first connecting piece; a tensioning wheel is rotationally arranged on the adjusting frame and abuts against a transmission belt of the belt wheel transmission assembly. A negative pressure pipeline is arranged at the top in the compartment and communicated with air inlets of the first fan and the second fan, two dust suction nozzles are symmetrically arranged below the chassis, connected with the first fan and the second fan respectively and connected with an inner cavity of the compartment through a suction and pickup pipeline, and the blocking cover is located above an outlet of the suction and pickup pipeline. The belt wheel transmission assembly is low in maintenance cost, and the transmission efficiency, the stability and the service life of the belt wheel transmission assembly are optimized by adjusting the position of the tensioning wheel.

The utility model relates to air conditioner air pipe cleaning technical field especially discloses an airport air conditioner air pipe dust cleaning device, including the chassis, both ends of chassis are rotatively connected with the track, every cleaning mechanism includes the installation shaft, the cleaning roller and the cleaning plate, the outside fixed mounting of cleaning roller has a plurality of brush hairs, when the track rotates and removes to the cleaning roller, the brush hair on cleaning roller surface contact with the track, because the cleaning roller rotatively connected in the outside of installation shaft, under the track friction drive, the cleaning roller rotates, and the brush hair unceasingly rubs with the track surface, makes the dust that adheres on the track loose, and along with the rotation of cleaning roller, the brush hair and the sharp board on the cleaning plate realize self-cleaning, and the brush hair makes the dust on the track loose and makes the dust fall, reduces the track abrasion, maintains the friction between the track and the air pipe, guarantees the moving stability of track type chassis, prevents the problem such as skidding, power transmission not smooth, and further guarantees the normal travel and operation efficiency of cleaning device.

This invention provides a substrate handling apparatus that can more reliably transfer a substrate from a preceding process device. The substrate handling apparatus includes: a conveyor belt for transferring a substrate from the preceding process device; a drive source for rotating the conveyor belt; and a control device that controls the drive source to keep the rotation speed of the conveyor belt below the speed at which the substrate is transferred from the preceding process device before the front end of the substrate is transferred to the conveyor belt, and controls the drive source to accelerate the rotation speed of the conveyor belt based on the timing of the transfer of the front end of the substrate from the preceding process device to the conveyor belt, thereby transferring the substrate from the conveyor belt.

The invention relates to the technical field of fasteners, in particular to a torque tensile expansion bolt which comprises a stud, a sleeve, a flat washer, a spring washer and a nut, the stud is coaxially sleeved with the sleeve, one end of the stud extends out of the sleeve, and the flat washer, the spring washer and the nut are coaxially connected to the end, extending out of the sleeve, of the stud; according to the torque stretching expansion bolt, the stud with the wedge-shaped section and the sleeve with the wedge-shaped surface and the limiting section are arranged, and the expansion groove of the sleeve penetrates through the end close to the nut, so that even if the expansion section is subjected to plastic deformation, the torque stretching expansion bolt can still be recycled under the condition that the internal diameter of the connecting hole is not damaged; and when the recycled torque stretching expansion bolt is continuously adopted, the hole diameter of the connecting hole does not need to be increased, so that recycling and reusing of the torque stretching expansion bolt are guaranteed, and the waste rate of the expansion bolt is reduced.