US4958290A - Balancer - Google Patents US4958290A - Balancer - Google Patents Balancer Info Publication number US4958290A US4958290A US07273959 US27395988A US4958290A US 4958290 A US4958290 A US 4958290A US 07273959 US07273959 US 07273959 US 27395988 A US27395988 A US 27395988A US 4958290 A US4958290 A US 4958290A Authority US Grant status Grant Patent type Prior art keywords wheel signals shaft position means Prior art date 1988-11-18 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Fee Related Application number US07273959 Inventor Paul W. Kendall Gregory H. Parrott Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) PRECISION BALANCE Corp Original Assignee Accu Ind Inc Priority date (The priority date is an assumption and is not a legal conclusion. A method and apparatus for the measuring of the imbalance and the calculation of the location and size of the necessary weights to be added to a rotating object to balance it. Included are a mounting surface for receiving the object and a shaft affixed to and extending away therefrom with the shaft supported at two spaced apart points therealong, and a pair of pressure sensors with one each at the two support points of the shaft for providing a signal that is proportional to the force exerted by the shaft at the corresponding one of the support points as the object is rotated. In addition, a position and speed of rotation detection means is affixed to the shaft to continuously provide speed of rotation and position data of the shaft. Also there is a pair of tracking filters, each disposed to receive the output signal from a different one of the pair of pressure sensors with the center frequency of both filters being substantially the speed of rotation of the shaft. Ultimate disability guide. The Hofmann geodyna 2350 sets the industry standard for entry- level wheel balancing. Special 'User-Calibration' calibrates balancer in two easy steps. Download and Read Calibrating Hofmann Geodyna 20 Manual Calibrating Hofmann Geodyna 20 Manual Give us 5 minutes and we will show you the best book to read today. 9.3CUSTOMER CALIBRATION. The purpose of this manual is to provide the owner and operator of. ˉspeed 7S˄if the weight of the wheel is about 20Kg˅. Hofmann Geodyna 40 User Manual![]() The tracking filters are provided to filter the signals from the pressure sensors to obtain a signal having frequency components that are within the vicinity of the frequency of the speed of rotation of the shaft. Finally, there is computational means coupled to receive the position and speed of rotation signals and the signals from the pair of tracking filters to compute the imbalance of the rotating object and the location and the weight to be added to bring it into balance. BACKGROUND OF THE INVENTION The present invention relates to the determination of the location of weight additions in one or two planes of a rotating object to put the object into balance on its axis of rotation, namely, a dynamic and static balancing method and apparatus for automobile wheels and other objects that spin around a central axis in use. There are several different dynamic balancing devices currently available, both hand spun and motor spun. Each of these basically include a mounting bracking for receiving the wheel or other rotatable mass. The mounting bracket in turn is either fixedly mounted to a shaft which is supported along its length by a pair of spaced apart bearings in which the shaft is journaled, or is mounted to a fixed shaft by means of a rotatable bearing with the shaft fixedly mounted at two spaced apart points.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |