44results about How to "Avoid accumulating errors" patented technology

The invention provides a constant velocity universal joint bell housing scraping and striking tool which comprises a support and a locating device arranged on the support and used for locating a workpiece. The locating device comprises a standard locating device used for carrying out standard locating on a workpiece, and the standard locating device comprises a workseat disc and a lining structure, wherein the lining structure is arranged on the workseat disc and capable of stretching into and being lined on the inner side wall of a workpiece. According to the constant velocity universal joint bell housing scraping and striking tool, the bottom portion of the inner cavity of the cup body of a bell housing is used as a standard to carry out location, the central hole of the end face of the cup body of the bell housing and the central hole of the end face of a rod portion have an identical machining standard, and accumulated errors caused by secondary standard adjustment are avoided.

The present application provides a base station, a method for locating a base station, and corresponding equipment. The method for locating a base station includes: specifying the current base station as the initial reference base station of the current cell; The position calibration information of the initial reference base station; screening out the corresponding re-measurement base station whose error value is greater than the preset threshold in the position calibration information; receiving the feedback of the re-measurement base station relative to the calibrated base station based on the second ranging strategy position calibration information, and correct the position calibration information of the retested base station. Through the cooperation of the first ranging strategy and the second ranging strategy, the problems of limited positioning accuracy of the base station and complicated positioning calculation methods are overcome, and the base station whose position calibration information error value is greater than the preset threshold can be retested, and the The fusion of the two positioning methods can effectively improve the accuracy of self-calibration between base stations.

A parallel multi -free resignation exoskeleton and ankle joint in the field of rehabilitation engineering technology, including: foot support board, imitation human leg jacket, upper platform, lower platform, first active branch chain guide rod, second active branch chain guide guideThe rod and the third active branched chain guide rod, of which: one end of the first active branch chain guide rod is connected to the upper platform activity, the other end is connected to the lower platform activity, and the second active branch chain guide rod is connected to the upper platform activity.The other end is connected to the lower platform activity. One end of the third active chain guide rod is connected to the upper platform activity, and the other end is connected to the lower platform activity.The coat is fixed with the upper platform.The invention agency is rigid, the structure is simple, and the stability is good; the requirements of the human ankle and flexibility are met.

This invention discloses a kind of single ply parallel connection three degree of freedom one-piece compliance accurate positioning platform that has redundancy. This invention includes base and motion platform. The motion platform and the base are connected by four group compliance positioning amplification frames. The four group amplification frames are in 900 rotating symmetry on the four sides of the motion platform. This invention can achieve nanometer positioning accuracy; the positioning platform has good operationality. It can avoid singular position, solve the coupling problem of input and output and increase its working flexibility. This invention can enlarge the motion scope by using secondary grade or more high level compliance amplification frame.

The invention discloses a gas producer deslagging device which comprises a slag plate, a supporting part arranged on the bottom of the slag plate, a driving part for driving the slag plate to rotate and an airduct. The slag plate comprises a plate body, a rotary sleeve disposed on the bottom of the plate body, a supporting runner and spacing teeth. The supporting part comprises a base pier and a central supporting part. The supporting runner is arranged on the base pier. The central supporting part comprises a cannula sleeved outside the rotary sleeve and at least two support arms which are fixedly connected with the outer wall of the cannula. The gas producer deslagging device is characterized by comprising a stop part, a central rotating part and a floating part as well. The stop part comprises a support and a lever type stop rod which is arranged on the support through a rotating shaft. An indirect rotation mechanism comprises an inner ring fixed on the outer wall pipe section of the rotary sleeve and a middle ring which is sleeved between the inner ring and the cannula. The floating part is composed of a water seal, the bottom of which is connected with the airduct. The rotary sleeve is positioned in the water seal. The bottom of the inner ring is sleeved at the opening part of the water seal. By the adoption of the gas producer deslagging device, deslagging smoothness and stability are raised, and failure rate of the equipment is reduced.

The invention relates to a clamping device, in particular to a steel grating plate clamping device which comprises a hook plate, a clamping plate, an installation support, a clamping plate slider, a clamping cylinder, a first clamping rod, a second clamping rod, a third clamping rod, a fourth clamping rod, a sliding chute and a sliding guide block. The sliding guide block is arranged at the front end of the clamping plate and inserted into the sliding chute and can slide in the sliding chute. The front end of the first clamping rod is rotatably connected with the clamping plate slider, the back end of the first clamping rod is respectively connected with the second clamping rod and a cylinder body of the clamping cylinder through a pin shaft, the back end of the second clamping rod is rotatably connected with the installation support, the front end of the third clamping rod is rotatably connected with the clamping plate slider, and the back end of the third clamping rod is connected with the fourth clamping rod and a piston rod of the clamping cylinder through a pin shaft, and the back end of the fourth clamping rod is rotatably connected with the installation support. The steel grating plate clamping device is simple, compact and reasonable in structure; reliable in clamping and capable of avoiding error accumulation; convenient to maintain; and capable of avoiding oil leakage apt to happen due to oil cylinder clamping.

The invention discloses a high-precision multi-dimensional adjusting device. A base of the high-precision multi-dimensional adjusting device comprises at least one shaft penetrating hole, and verticalconnecting holes are perpendicular to the corresponding shaft penetrating holes correspondingly. After lead screw gear shafts are arranged in the corresponding shaft penetrating holes in a matched and sleeving manner, gear sections of the lead screw gear shafts are located at the intersection of the two penetrating holes, and axial non-disengaging nuts are arranged on the threaded sections of thelead screw gear shafts. The nuts and the head ends of the shaft penetrating holes are provided with first non-disengaging structures. A rack portion is arranged on one side of each rack lead screw, and each steering non-disengaging nut is arranged on the threaded section of the corresponding rack lead screw. The nuts and the head ends of the vertical connecting holes are provided with second non-disengaging structures. After the rack lead screws are arranged in the vertical connecting holes in a matched and sleeving manner, the rack portions of the rack lead screws are engaged with the gear sections of the lead screw gear shafts. According to the high-precision multi-dimensional adjusting device, multi-dimensional independent axial adjustment and angle adjustment can be achieved. Adjusting operation becomes simple, and the high-precision multi-dimensional adjusting device is easy to use. The structure is compact, reasonable and simplified, the design is optimized, the number of adopted components is the minimum, and the precision degree is improved.

The invention discloses a current sensor calibration method and electronic equipment of an electric vehicle battery management system. The method includes: using a charger to perform multiple charging calibration detections on the power battery detected by the current sensor, and obtaining the charger obtained by each charging calibration detection. The charging capacity difference between the charging capacity and the charging capacity of the management system; calculate the correction error of multiple charging capacity differences; obtain the credibility of the current sensor current adaptive correction coefficient about the correction error; use the current sensor current adaptive correction coefficient to be credible Correct the current sensor current adaptive correction coefficient; use the current sensor current adaptive correction coefficient to correct the current sensor. In the present invention, under the condition of using less BMS resources, the sampling current of the current sensor is corrected online, so as to improve the ampere-hour integral precision. In the present invention, under the condition of using less BMS resources, the sampling current of the current sensor is corrected online, so as to improve the ampere-hour integral precision.