12results about How to "Increase the maximum static friction" patented technology

The invention discloses a woven carpet of various plant fibers, which is characterized in that warp yarns A comprise yarns A spun by sisal fibers, warp yarns B comprise yarns B spun by hemp fibers or blended by hemp fibers and cotton fibers, weft yarns are yarns C spun by banana tree stem fibers, the weft yarns are wound above or below the warp yarns A in a staggered manner, two warp yarns A are wound by the weft yarns each time, and the weft yarns are wound by the weft yarns each time. The warps B are located between every two adjacent warps A at intervals, the wefts wound below the warps A are wound below the warps B in a staggered mode or between the warps B and the warps A, and the directions of every two adjacent wefts vertically wound on the warps A and the warps B are opposite. According to the structure, the thickness of the woven carpet made of various plant fibers is increased, and the top surface of the carpet is made of natural plant fibers; the friction coefficient between the silica gel layers on the surfaces of the warps B and the ground is large, so that slipping between the carpet and the ground is avoided, the warps A and the wefts can be matched to be woven more tightly through the action of the silica gel layers, and the overall softness of the carpet is further improved.

The application belongs to the technical field of robots, and discloses a three-dimensional force sensing-based detection and balance control method and system for a legged robot. The method comprises the following steps: determining the number of the leg of the multi-legged robot that slips according to a three-dimensional force signal of the multi-legged robot in contact with the ground; and adjusting the multi-legged robot in the following manner when slipping occurs: (1) adjusting the height of the center of mass of the multi-legged robot; (2) for the leg that slips, actively adjusting the joint stiffness and joint damping of the leg to relieve instantaneous impact; applying foot end acceleration and adjusting normal support force to suppress slipping; and adjusting the target foot landing point at the next time. Through the application, the balance of the robot can be quickly restored after slipping occurs, the risk of instability is reduced, and the stability of the robot in a complex environment is ensured.

This utility model discloses an anti-slip single-sided fleece fabric, relating to fabric technology. The key technical points are: it includes a base fabric and a fleece layer; one side of the base fabric has several protrusions, which are evenly spaced along the warp direction of the base fabric. In this utility model, when the base fabric contacts the comforter, the protrusions can cause a certain deformation of the comforter's surface, thereby increasing the contact area between the base fabric and the comforter, improving the maximum static friction between them, and reducing the possibility of relative sliding. Setting the protrusions in a corrugated shape increases the length of the protrusions per unit length, thus increasing the contact area between the protrusions and the comforter. Furthermore, this shape of the protrusions increases the relative friction with the comforter in both the warp and weft directions, further reducing the possibility of relative sliding between the base fabric and the comforter.

The present application discloses a water pump with parameter reading function based on PWM communication, including a shielded water pump and a parameter reading device, wherein the shielded water pump and the parameter reading device perform PWM communication, and the shielded water pump is provided with a water pump controller, wherein the water pump controller includes a main control chip, a PWM receiving module, a PWM sending module, a motor control module and a power supply module. The present application provides a water pump with parameter reading function based on PWM communication, defines a modulation protocol based on PWM and a set of software response processes of the water pump to the PWM modulation protocol, which can realize the demodulation of the water pump to PWM communication messages, the parsing of parameter query commands, the verification of parameter commands, the modulation of internal parameters to be sent, and the sending of parameters to be sent, thereby realizing the function of uploading complex parameters such as software and hardware version numbers, speed, power, etc. inside the water pump using PWM communication.

The invention relates to the technical field of suspension bridge cable saddle installation equipment, in particular to a cable holder for lifting a main cable strand in a saddle, which comprises a first component and a second component which are formed by processing a rectangular forged steel blank, a lug plate is integrally formed on the first component in a material removal mode, the lug plate is located on the central axis of the first component, and the second component is located on the middle axis of the second component. The second component is formed by machining a rectangular plate with the side face removed from the lug plate, a first groove is formed in the first component in the length direction of the first component, a second groove is formed in the second component in the length direction of the second component, and the face where the first groove of the first component is located is attached to the face where the second groove of the second component is located. The first component and the second component are fixed through bolts and nuts. The technical problems that a large amount of welding exists on a cable holder in the prior art, and when a cable is pulled in a large-span suspension bridge, a pin shaft, a high-friction lining and a welding structure on the cable holder are prone to loosening and breakage are solved.

This invention discloses a structure and design method for preventing the corner sealing gasket of a shield tunnel segment from slipping out. The structure includes a segment body, at least one anti-slip patch, and a sealing gasket. The segment body is used for forward assembly and includes four assembly end faces. A sealing ring groove is formed on the four assembly end faces. The four assembly end faces include a rear assembly end face and at least one active sliding end face located on the left and right sides. The sealing ring groove includes a first corner groove segment formed at the junction of the active sliding end face and the rear assembly end face. The at least one anti-slip patch is adhered to the groove sidewall of the corresponding first corner groove segment. The sealing gasket is ring-mounted in the sealing ring groove and abuts against the anti-slip patch. This invention solves the problem of sealing ring slippage leading to sealing failure in existing shield tunnel segment assembly structures.

The present invention provides a high-stability deep-sea single pile bottom stabilization structure, including a clamping stabilization component, the clamping stabilization component including a rectangular support block with openings at both ends, a circular block arranged on the upper side of the rectangular support block, four threaded holes arranged around the edge of the circular block at equal intervals, each threaded hole is meshed and connected with a locking threaded column, a rotating handle is arranged at one end of each locking threaded column, a clamping block is arranged at the end of each locking threaded column away from the rotating handle, each clamping block clamps the single pile, and a pre-embedded stabilization component is arranged on the lower side of the rectangular support block, the pre-embedded stabilization component includes a docking block, the upper side of the docking block is connected to the lower side of the rectangular support block, and the lower side of the docking block is provided with a pre-embedded anti-corrosion block. Through the present invention, the connection between the bottom of the single pile and the seabed can be strengthened, the stability is improved, and it can adapt to strong winds and deep sea areas. In addition, the structure is stable, the installation is convenient, the cost is low, and it is very practical.

The invention relates to the technical field of copper wire machining, and discloses a straightening device for high-quality copper wire manufacturing treatment for a robot, which is used for copper wire machining and comprises a workbench, a straightening assembly and a transmission assembly, the straightening assembly and the transmission assembly are arranged at the top of the workbench, and the transmission assembly comprises a plate frame and a driving motor which are arranged at the top of the workbench. The pressure adjusting opening is formed in the surface of the plate frame, the pressure adjusting plate is arranged in the pressure adjusting opening, and the driving wheel is arranged on the front face of the plate frame. According to the straightening device for manufacturing and processing the high-quality copper wire for the robot, by arranging the transmission assembly, the forward clamping force of the driving wheel and the pressing wheel on a copper wire can be actively increased, so that the maximum static friction force of the contact surfaces of the driving wheel, the pressing wheel and the copper wire is increased, and the instantaneous fluctuation resistance in the elastic straightening process is trying to be counteracted; macroscopic relative sliding is avoided; and the possibility that the copper wire is locally flattened and deformed, the surface layer is cold-hardened, the original mechanical ductility and roundness precision of the copper wire are damaged and the like is reduced.

The utility model discloses wear -resisting outdoor woven cloth relates to the fabric technology, and its technical scheme main points are: including surface layer and wear -resistant layer, one side of surface layer is equipped with the bulge, is equipped with waterproof layer on surface layer, and wear -resistant layer is fixedly connected with surface layer through the connecting strip. When using, the waterproof layer can be better protected by surface layer and wear -resistant layer by the contact of wear -resistant layer and ground and the contact of surface layer and picnic mat supported object, so that the waterproof layer is not easy to wear and tear, thereby can better guarantee the waterproof capacity of woven cloth, when there is object and press on the surface layer, the gravity of object is pressed on wear -resistant layer through the bulge, makes the side of wear -resistant layer and ground and forms the uneven surface, improves the maximum static friction between wear -resistant layer and ground, and the outer wrapping yarn of using chinlon fibre production can better guarantee the wear resistance of wear -resistant yarn.

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

The utility model discloses an anti -skidding sofa cover relates to furniture article technical field, and its technical scheme main points are: including cushion cover, the cushion cover includes a plurality of cushion cover module, and the junction of adjacent two cushion cover modules is equipped with flexible limiting sheet, is equipped with a plurality of friction strips on flexible limiting sheet, and the one end of flexible limiting sheet is fixed with plastic pole, and the bottom surface of cushion cover is equipped with a plurality of rubber bosses. When the tendency of relative movement of cushion cover and sofa occurs, flexible limiting sheet can play the better limiting effect to cushion cover module, in addition, rubber boss can also improve the friction between cushion cover module and sofa, reduce the number of people who need to arrange sofa cover after leaving sofa, when using flexible limiting sheet limiting cushion cover module, can through the hand of plastic pole and embed the end of flexible limiting sheet in sofa seam, and plastic pole is relatively hard to sofa, can conveniently embed flexible limiting sheet in sofa seam.

The utility model relates to the technical field of machining equipment, and particularly discloses an automatic tool changing grinding head assembly and grinding equipment. The rotary driving module is connected with the rotary sleeve and drives the rotary sleeve to rotate around the axis of the rotary sleeve; one end of the cutter clamping sleeve extends into the rotating sleeve; the linear driving module is connected with the tool clamping sleeve; the other end of the tool clamping sleeve has an outward extending state in which the other end is driven by the linear driving module in the forward direction to extend out of the rotating sleeve so as to clamp a grinding head tool, and has an inward retracting state in which the other end is driven by the linear driving module in the reverse direction to retract inwards to abut against the inner wall of the rotating sleeve. According to the automatic tool changing grinding head assembly and the grinding equipment, mechanical tool changing operation can be achieved, then production efficiency is improved, and accident risks are reduced.