4results about How to "Achieve circumferential fixation" patented technology

The application relates to the technical field of mechanical precision detection, in particular to a rotating detection table for cross-roller bearing measurement, which comprises a shell, a fixed shaft fixedly connected to the bottom end of the shell, a V-shaped frame movably connected to the fixed shaft, a pull rod rotatably connected to the V-shaped frame, a supporting beam movably connected to the pull rod, a limiting plate fixedly connected to the upper end of the shell, a toothed plate slidably connected to the limiting plate, the toothed plate being fixedly connected to the supporting beam, a servo motor A fixedly connected to the upper end of the shell, the output end of the servo motor A being driven by a gear set to drive the toothed plate, a sliding rail fixedly connected to the bottom end of the shell, a servo motor B slidably connected to the sliding rail, a belt cylinder rotating shaft fixedly connected to the output end of the servo motor B, a friction belt fixedly connected to the belt cylinder, and a clasp fixedly connected to the friction belt. The V-shaped frame and the friction belt are used to prevent the outer ring from rotating circumferentially and moving eccentrically while ensuring the universality of the cross-roller bearing measurement, improve the rotating detection precision, and increase the height positioning function of the bearing axis.

The application discloses a kind of active noise cancellation device for ventilation duct, including ventilation duct and installation plate being arranged on ventilation duct, the ventilation duct includes first pipe and second pipe, the opposite side of the outer surface of first pipe and second pipe is all welded and fixed with butt joint frame, the both sides of installation plate are all penetrated and slidably installed with first L-shaped positioning frame, and the application relates to noise control technical field.The active noise cancellation device for ventilation duct provides the abutment of the abutment of two butt joint frames with the setting of two first L-shaped positioning frames, first rubber sleeve, first butt joint groove, installation plate and first fastening bolt, and provides fixing condition for detection box, to ensure that active noise eliminator is effectively used in ventilation duct, and cooperate with the setting of telescopic air cylinder, noise reduction frame and cover plate, when ventilation duct is not used, active noise eliminator can be isolated and protected by cover plate, to avoid the influence of dust on active noise eliminator.

The application relates to the field of battery diaphragm production, and relates to a sun gear winding framework and an application method thereof.The sun gear winding framework comprises an inner ring body and an outer ring body, the inner ring body is used for sleeving the outer periphery of a gas expansion shaft, the inner ring body is provided with an inner separation slot, the inner separation slot penetrates the inner ring body, the outer ring body is coaxially sleeved on the outer periphery of the inner ring body, the inner ring body and the outer ring body are in interference fit, the outer periphery of the outer ring body is used for abutting against the inner wall of a winding drum, the outer ring body is provided with an outer separation slot, the outer separation slot penetrates the outer ring body, and the outer separation slot is flush with the side wall along the circumferential two sides of the inner ring body. The inner separation slot and the outer separation slot are arranged, the inner ring body and the outer ring body have certain ductility, the sun gear framework is convenient to abut against the inner wall of the winding drum under the action of the gas expansion shaft, circumferential fixing of the winding drum and the gas expansion shaft is realized, the application range of the gas expansion shaft is improved, the replacement process of the winding drum is simplified, the sun gear framework is composed of the inner ring body and the outer ring body, the separate replacement of the inner ring body or the outer ring body is facilitated, and the production cost is reduced.

The invention relates to the technical field of copper conductor machining, and discloses a copper conductor anti-deformation machining numerical control lathe chuck which comprises a base and an air cylinder, the air cylinder is arranged at the bearing end of the base, the output end of the air cylinder is connected with a fixing mechanism, the air cylinder is started to drive the fixing mechanism to execute the clamping action, and a power source is provided for fixing of a copper conductor. The fixing mechanism comprises a driving trapezoidal block, the driving trapezoidal block is connected with an air cylinder, the air cylinder outputs power to directly drive the driving trapezoidal block to stably move along a rail groove in the top of the base, a foundation is laid for follow-up transmission actions, an air pump is arranged at the top of the driving trapezoidal block, and the air pump provides gas power for actions of the clamping equipment. The anti-deformation machining numerical control lathe chuck for the copper conductor is stable in transmission and accurate in clamping, the machining stability and machining quality of the copper conductor are effectively improved, the probability that the copper conductor deforms in the machining process is reduced, meanwhile, operation is convenient, and the machining efficiency can be improved.