7 results about "Radian" patented technology

The invention relates to a residual stress control method of a hundred-meter steel rail, which belongs to the fields of prebending deformation control and composite straightening deformation control processes of the hundred-meter steel rail and the like. The invention adopts a method with universal rolling, cooling after rolling and composite straightening, and large-radian prebending is adopted for the hundred-meter steel rail in the cooling process after rolling, so that when the steel rail is cooled to the room temperature, the chord height is controlled in the range of 30-40mm. By combination of optimized straightening deformation rules of an 8+1 multi-roll straightening machine and the control of the curvature before straightening, the residual stress control method effectively controls the residual stress of the bottom of the rail after the hundred-meter steel rail is straightened, the residual stress values of the bottom of the rail are averagely reduced by 70MPa, all the residual stress values are less than or equal to 250MPa, and the straightness of the steel rail is improved, so that the qualification rate of the steel rail is improved, and the standard requirement of the hundred-meter steel rail is met.

The invention provides a maintaining device. The maintaining device comprises two maintenance platforms. Each maintenance platform comprises a platform pedal, a ladder assembly, a supporting structure and a movable device, wherein the ladder assembly is arranged at one end of the platform pedal, and a connection structure is arranged at the other end of the platform pedal; the supporting structure is arranged below the platform pedal and used for supporting the platform pedal; the movable device is arranged below the supporting structure and the ladder assembly and used for conveying the maintenance platform. The two maintenance platforms are assembled and connected through the connection structures of the platform pedals. The shape after the two maintenance platforms are assembled and connected is matched with the shape of a headstock to be maintained, the maintaining device can be closer to a windshield wiper, glass and the like of the motor car headstock after assembly as the platform pedals with radians are arranged, the structures can be maintained and subjected to other treatment directly, the safety problems like falling off are avoided, and the maintenance and replacement efficiency and operation safety of the windshield wiper, glass and other components of the motor car headstock can be effectively improved.

The invention relates to the field of corrosive foil machining and particularly discloses a corrosive foil cleaning device. The corrosive foil cleaning device comprises a shell, a feeding port, a discharging port, a lifting plate and a circulating pump; the lower surface of the lifting plate is provided with a plurality of supports at equal intervals; horizontal rotating shafts are rotationally connected to the supports through bearings; the outer sides of driving rollers are each fixedly sleeved with a layer of brush sleeve; a plurality of sprinkling pipes are fixedly installed on the lower surface of the lifting plate; an arc-shaped cleaning groove is arranged below each driving roller; center shafts of the cleaning grooves coined with the rotating shafts; the shell is internally filledwith cleaning liquid; the bottom of each cleaning groove is provided with an opening; and a brush plate the same as the corresponding cleaning groove in radian is arranged in each opening. According to the corrosive foil cleaning device, the upper surface of corrosive foil is contact with the brush sleeves on the surfaces of the driving rollers, deionized water is jetted onto the upper surface through the sprinkling pipes so that the upper surface of the corrosive foil can be washed, the lower surface is in contact with bristle layers on lower brush plates, impurities of the surface of the corrosive foil is brushed away due to vibration of the brush plates, and cleaning treatment is performed on the upper surface and the lower surface of the corrosive foil at the same time.

The invention relates to a hydraulic machine, in particular to a hydraulic machine provided with a device for inner hole finish machining through a steel ball (3). The hydraulic machine comprises the device for inner hole finish machining and a hydraulic table (6). The device for inner hole finish machining comprises a hydraulic head (2), a clamp (5) and the steel ball (3), the device for inner hole finish machining is installed on the working face of the hydraulic table (6), the hydraulic head (2) is installed in the middle of a hydraulic machine body (1) and corresponds to the device for inner hole finish machining, the stamping end is in an inwards-concave arc shape and is coincident with the surface of the steel ball (3) in radian, the clamp (5) is in a hollow U shape and is beneficial to placement of a workpiece (4) and extruding work of the steel ball (3), the steel ball (3) is placed on an inner hole of the workpiece (4) to be stamped by the hydraulic head (2), and a hydraulic pressure gauge and a motor are installed inside the hydraulic table (6) to serve as power control of the hydraulic head (2). The original requirement of hole finish boring for a cutter and a machine tool is replaced, the machining number at unit time is one time higher than the machining number of hole finish boring at unit time, the quality of machined products, particularly the roughness, is higher than that of hole finish boring, the yield is improved, and the production effect is improved.

The invention relates to a method for using a tool for drilling an inclined hole. The method for using the tool for drilling the inclined hole comprises the following steps that firstly, a through hole in a workpiece and a small positioning hole in the cambered surface of a base plate are aligned, and the workpiece is positioned through a positioning pin; secondly, a pressing block is pressed on a boss of the workpiece, and the pressing block is positioned and fixed through a positioning bolt and a big positioning hole; thirdly, a counter bore is machined at the position of the through hole after the workpiece is positioned, and the machined counter bore is inclined due to the facts that the radian of the bottom surface of the workpiece is the same as that of the base plate, the top surface of the boss on the workpiece is in a non-horizontal state and a drill bit is in the vertical state. The method for using the tool for drilling the inclined hole has the advantages that the structure is simple, the method is economical and practical, operation is convenient, and machining precision is high.