13results about How to "Reduce direct friction" patented technology

The application relates to the technical field of automobile part molds, and discloses an automobile part mold guide column, which comprises a lower mold and an upper mold, wherein the upper mold is located above the lower mold. The automobile part mold guide column is provided with a soft sleeve outside the ball guide column, can play a buffering and isolating role when the mold and the ball guide column relatively move, and the soft sleeve made of polytetrafluoroethylene has very low friction coefficient and good self-lubricating property. When the guide hole of the mold is in contact with the ball guide column and relatively slides, the soft sleeve first contacts the inner wall of the guide hole, the soft and smooth surface of the soft sleeve can effectively reduce the direct friction force between the two, the surface material of the ball guide column or the guide hole of the mold is prevented from being scraped and worn due to high-intensity friction, meanwhile, the soft sleeve can also fill the possible tiny gap between the ball guide column and the guide hole, the movement is more stable, the additional friction and wear caused by shaking and impact are reduced, and the pulling phenomenon of the ball guide column and the mold is avoided.

This application provides a beverage device, relating to the field of beverage equipment technology. The beverage device includes a frame, a brewing assembly, a liquid injection pipe, and a scraping assembly. The brewing assembly is mounted on the frame and includes a brewing chamber and a liquid injection hole, with the liquid injection hole communicating with the brewing chamber. The liquid injection pipe is located outside the brewing assembly, opposite to the liquid injection hole, and is movably connected to the frame. The scraping assembly includes a scraping rod and a transmission linkage. The scraping rod is located at the top of the brewing assembly and is used to push the extracted residue at the top of the brewing assembly out of the brewing assembly during rotation. One end of the transmission linkage is fixedly connected to the scraping rod, and the other end is drivenly connected to the liquid injection pipe. The transmission linkage is used to drive the scraping rod to rotate during rotation and to drive the liquid injection pipe to insert or remove from the brewing assembly, thereby connecting or separating the liquid injection pipe from the liquid injection hole. This beverage device has a simple structure, is easy to assemble, and has low cost.

The utility model relates to mechanical design technical field discloses a high accuracy balance air conditioner engine crankshaft, including front end spindle neck, the front end spindle neck rear side fixedly connected with first connecting sleeve, first intermediate spindle neck is fixedly connected with first connecting sleeve rear portion, first intermediate spindle neck outside fixedly connected with front balance ring, first intermediate spindle neck left and right sides all fixedly connected with primary crank arm, primary crank arm inside fixedly connected with primary connecting rod axle neck, primary crank arm bottom fixedly connected with primary crank balance weight, the crank balance weight bottom fixedly connected with balance counterweight sliding block, first intermediate spindle neck rear portion fixedly connected with secondary crank assembly, the utility model discloses, this crankshaft passes through multiple spindle neck dispersion load, promotes the alternating complex load capacity, axle neck cover and lubrication structure stable gap, balance weight and adjusting screw optimization dynamic balance, reduce the failure risk greatly.

The utility model discloses a part transfer trolley for an automobile part machining workshop, and belongs to the technical field of automobile part machining equipment. The trolley comprises a trolley base, a trolley hopper and idler wheels. The trolley base is provided with a bottom plate, a baffle, universal wheels and a pushing handle. The car hopper is provided with a rectangular shell, a positioning plate, a positioning hole, a supporting rod, a clamping tenon and a car hopper clamping groove. The rollers are provided with cross rods and rotating shafts. The engine hood is convenient to store and take through rolling of the rollers, abrasion is reduced through the rubber sleeves, and stacking storage is achieved through cooperation of the clamping grooves and the clamping tenons. The problems that an existing transfer trolley is inconvenient to store and take, prone to abrasion and incapable of being stacked are solved, and the transfer trolley is suitable for transfer of automobile part machining workshops.

The utility model discloses a strip mine blast hole charging structure above a goaf and a layered explosion control system, which adopt a subsection charging structure, adjacent explosive sections are separated by an air column, a buffer layer with a honeycomb structure is arranged between the explosive section at the bottommost layer and the bottom of a blast hole, the air column is arranged above the explosive section at the topmost layer, and the hole is sealed by stemming; the explosive section is filled in the blasting energy gathering pipe and is separated from the wall of a blast hole, a main stress compensation layer and an auxiliary buffer layer are sequentially and fixedly arranged close to the wall of a goaf top plate, the main stress compensation layer is laid by foam blocks, the auxiliary buffer layer is a hard plate, direct friction between the foam blocks of the main stress compensation layer and the goaf top plate is reduced, and local stress concentration is dispersed. According to the utility model, through directional energy release of the blast hole charging structure of the strip mine at the upper part and cooperation of active stress compensation and vibration monitoring in the goaf at the lower part, dual improvement of blasting efficiency and safety under the condition that the goaf exists is realized.

This application discloses a hyperboloid roller skating rink, belonging to the field of sports field construction structure technology. It includes an outer field, an inner field, fencing, protective mechanisms, and reinforcing support mechanisms. The rink is divided into an outer field and an inner field by the fencing. The inner field includes a track and a lawn. The track has a hyperboloid design, including a smooth zone, a transition zone, and an acceleration zone. This application uses the fencing to distinguish the inner and outer fields. The inner field has a track and a lawn. The hyperboloid design, with its continuous undulations, not only increases the difficulty of the track but also enhances its fun factor, making it popular among sports enthusiasts. It has a high usage rate and popularity, thereby improving productivity and promoting the expansion of roller skating rinks and the popularization of roller skating. By placing the roller skating rink outdoors, it can accommodate more people to watch. Simultaneously, the lawn outside the track in the inner field reduces direct friction between the skater and the ground after a fall, thus reducing injury and greatly improving the practicality of the device.

The utility model relates to a kind of airing rod telescopic mechanism and clothes airing machine, to solve the problem of not smooth, easy to wear and tear of airing rod telescoping in prior art, by setting movable roller assembly in the rod cavity bottom wall of fixed main rod, and setting second roller on the end face of the plug of telescopic rod, when telescopic rod is telescoped in fixed main rod, multiple rollers support and limit telescopic rod from different directions, reduce the friction between telescopic rod and inner wall of fixed main rod, realize more smooth telescoping effect, at the same time, through the cooperation of multiple roller design, sliding slot and roller assembly, avoid telescopic rod shaking, tilting, improve the stability of telescopic rod telescoping, reduce the wear and tear of telescopic rod and main rod, prolong service life.

This utility model relates to the field of hydraulic transmission equipment technology, specifically to a composite dual-turbine hydraulic torque converter, comprising a dual-turbine hydraulic torque converter body, an input shaft disposed at the input end of the dual-turbine hydraulic torque converter body, and an output shaft disposed at the output end of the dual-turbine hydraulic torque converter body. Both the input and output shafts are fitted with sealing sleeves, which are detachably mounted on the dual-turbine hydraulic torque converter body. A rigid clamping ring is disposed inside the sealing sleeve and fitted onto the corresponding shaft. An inner sealing ring is disposed between the rigid clamping ring and the front cylindrical body of the sealing sleeve. An inner bushing is disposed on the rear side of the rigid clamping ring. Inner fitting gaskets are disposed on both the inner and outer end faces of the inner bushing. The inner fitting gasket on the inner side fits onto the corresponding shaft, and the inner fitting gasket on the outer end face abuts against the rear side of the rigid clamping ring. This utility model has good sealing performance, achieving the effect of improving sealing reliability and ensuring stable equipment operation.

This utility model discloses a flexible coupling for a small plunger pump motor shaft, belonging to the field of coupling technology. It includes a pair of connecting bushings for connecting the motor output shaft and the plunger pump input shaft. Both bushings are hollow, and a connecting disc is fitted at each end close to the other. An elastic connector is provided between the two connecting discs, suspended between them. Six sets of wear-resistant pads are circumferentially distributed at equal intervals on both sides of the elastic connector, and these six sets of wear-resistant pads are in contact with the two connecting discs. The elastic connector is made of rubber and is hexagonal. This technical solution effectively solves the problems of rigid couplings being unable to compensate for displacement and having high vibration and noise, as well as the problems of existing flexible couplings having complex structures, limited buffering effects, and rapid wear of the elastic body, through the structure of the hexagonal elastic connector made of rubber, wear-resistant pads, connecting bushings, and connecting discs. It is also easy to maintain and extends service life.

This utility model provides an intelligent force-controlled lightweight lithium-ion battery pruning machine. The machine includes a cutting blade and comprises a motor housing, a gear reduction mechanism, and an eccentric wheel. The motor housing has a motor output end. The gear reduction mechanism is connected to the motor output end and includes a rotating shaft. The eccentric wheel is fixed on the rotating shaft and connected to one end of the cutting blade. The gear reduction mechanism also includes a connecting end, and an oil seal mechanism is provided between the connecting end and the motor output end. This utility model solves the problem of excessive internal moving parts in pruning machines, leading to repeated friction during high-frequency shearing operations, resulting in a higher failure rate and increased equipment maintenance costs.

This utility model relates to the field of mechanical engineering, and more particularly to a protection device for a gantry dual-drive synchronous motion system with adjustable margin. The dual-drive synchronous mechanism consists of two transmission mechanisms, each containing a dual-axis motor, lead screw, pulley, and belt, providing power to the crossbeam. The crossbeam moving mechanism includes a crossbeam and a base, with lead screws connected to both ends of the crossbeam. Position sensors are installed on the crossbeam to detect the relative height of the two ends to ensure synchronization. The protection mechanism includes a limiting component and a tensioning component. The tensioning component is used to adjust the tension of the transmission belt, achieving adjustable margin to adapt to different working conditions. The limiting component not only restricts the movement range of the synchronous pulley, but its limiting position is also adjustable, thereby setting the allowable working range margin of the synchronous pulley. This invention ensures the motion synchronization of the gantry system through position sensor feedback and dual margin adjustment, and improves the reliability and adaptability of the system by protecting key components through limiting.

This utility model relates to the field of vehicle parts technology, and in particular to an anti-slip sleeve for a side support bracket. It includes a sleeve body, which is hollow in shape. An installation hole is provided on its outer side wall, and a kicking device is provided on the opposite side of the installation hole. A plastic base is provided on the bottom surface of the sleeve body, and a metal anti-slip plate is fitted and snapped onto the bottom surface of the base. The anti-slip plate enhances the friction and stability between the side support bracket and the ground. This anti-slip sleeve improves wear resistance and anti-slip properties, and extends its service life.

This invention provides an ejector device for shellfish harvesting, belonging to the technical field of shellfish harvesting devices. It solves the technical problem of low shellfish suction efficiency in existing ejector devices. This jet device includes an inlet pipe and an outlet pipe, which are linearly and fixedly connected by an expansion pipe. A suction tube is fixedly connected to the side wall of the expansion pipe, with one end extending outside the expansion pipe and the other end inside the expansion pipe and extending towards the outlet pipe. A spiral plate is fixedly connected between the suction tube and the outlet pipe. Gas enters between the suction tube and the outlet pipe from the expansion pipe, where the flow velocity and pressure increase. The gas then passes through a spiral channel formed by the spiral plate, improving flow efficiency. After entering the outlet pipe at the end away from the horizontal pipe, the flow velocity slows down, and the pressure increases. The end of the suction tube inside the outlet pipe creates a vacuum, sucking up the mixture of mud, water, and shells, reducing damage to the shellfish and improving harvesting efficiency.