Automobile controlled wheels convergence measuring device
 Device for checking play and force on vehicle steering wheel / 2273012Proposed device has telescopic member with stops on ends for fastening said member on rim of steering wheel and device for determining angular position of steering wheel made in form of indicator and scale secured on telescopic member with possibility of turning in plane parallel to plane of steering wheel and displacement of center of turning along telescopic member, steering wheel force sensor installed on one of end of telescopic member and made in form of two-way dynamometer, device for indicating moment of beginning of turning of steerable wheels of vehicle, and source of laser beam to be used as indicator. Signaling device contains movable electric contact installed on frame or front axle of vehicle to be tested for contact with rim of one of vehicle steerable wheels, and portable light indicator connected to supply source through said electric contact. Stops of telescopic member are furnished with spring catches to improved reliability of fastening of telescopic member on steering wheel. |
 Method of and device for checking vehicle steering gear summary play / 2266530Proposed method of checking summary play in vehicle steering gear comes to successively turning steering wheel from one to other side through angle exceeding possible play with subsequent recording of steering turning angle and displacement of steerable wheel by detectors and forming characteristics of play after which play is estimated by angle of turning of steering wheel after taking up play. Steering wheel turning angle detector is installed arbitrary on steering wheel rim in plane of its rotation, and displacement of steerable wheel is determined by displacement of point extreme from center of rim of steerable wheel in horizontal plane taking it as beginning of counting of steering wheel play, and end of counting is determined by two-fold displacement of said point in opposite direction. Summary play of steering gear is determined as difference of angle of turning of steering wheel from beginning of counting to first beginning of displacement of rim of steerable wheel with extraction of angle of turning of steering wheel from first to second beginning of displacement of rim of steerable wheel in the same direction. Steering wheel turning angle detector is fixed in three points in arbitrary place on steering wheel rim in plane of its rotation. Device for checking summary play in vehicle steering gear has steering wheel turning angle detectors and steerable wheel displacement detectors, and play calculator unit at output of which play indicator is installed, all being connected to supply unit. Play calculator unit includes series-connected analog-to-digital converter and microcontroller. Output of steering wheel turning angle detector made in form of gyroscope is connected to input of analog-to-digital converter whose output is connected to first input of microcontroller to first output of which play indicator is connected, and to second output, additional indicator-piezoradiator. Second input of microcontroller is connected to output of steerable wheel displacement detector, each element of circuit being connected to supply unit by common bus. Device is furnished with switch whose input is connected to third output of microcontroller, and outputs are connected to drivers of interface RS-232 and USB. |
 Wheel alignment gauge / 2251658Proposed wheel alignment gauge contains working member and measuring element. Working member can rotate around its axle, and measuring element secured on working member can come in contact with check points on surfaces under checking and can move along working member. Working member is made up of similar symmetrical parts and is installed on clamp connected with centering cones. Gauge is fastened by means of centering cones engaging with centering holes of axle-shafts or hubs of wheels. Gauge can be furnished with adapters with central conical holes designed for fitting on wheel, disks, when used on automobiles whose wheels have no centering holes. |
 Vehicle steerable wheels turning sensor / 2246713Proposed sensor is made in form of two supports 1 interconnected by crossmember 2. Stop 3 is mounted on one end of crossmember to thrust against external side surface of disk of vehicle steerable wheel 4. Other end of crossmember is provided with pin 5 spring-loaded relative to said crossmember for engagement with disk of wheel 4. Pin is connected through electromagnetic lock with one end of measuring strip 9. Other end of strip interacts with recording element 10 whose output is connected to corresponding input of electronic unit. |
 Device for determining angular vibration of vehicle wheel / 2245536Device has testing bench and control device which comprises storing device, unit for generating signals of recording dependence of angular deviation on time, unit for decoding discrete signal and its interpolating, correlation unit, and unit for calculating power spectrum. |
 Device for indicating shaft rotation / 2290602Device comprises axially aligned housing with axial opening, rotating part connected with the shaft, locator for locking it at the initial position, unit for preventing device against rotation, and indication members mounted inside the housing. The top section of the housing is provided with horizontal groove that is in communication with its axial opening. The indication members made of inertia members spring-loaded perpendicular to the longitudinal axis of the housing are set in the horizontal groove. The rotatable part is made of piston with rod. The piston is sharpened and can move inside the axial opening in the housing. From the side of the housing base, the surface of the axial opening of the housing is provided with the cylindrical projection. The piston of the part to be rotated is spring-loaded with respect to the projection. The locator for locking the initial position of the part is made of additional projection made on the surface of the axial opening in the housing and groove on the outer side of the piston made for permitting the piston to move in the direction of horizontal groove in the housing after the rotation of the shaft. The length of the part to be rotated is chosen to provide locking the end position of the inertia members by the sharpened end of the piston after the rotation of the shaft. The top face surface of the housing is provided with horizontal groove that is in communication with the horizontal grove in the housing. |
 Instrument for measuring inner diameters of low-rigid hollow articles / 2290601Instrument comprises housing (1) whose central opening receives movable rod (10) with conical surface (11) at its one end, measuring head made of spring-loaded measuring sectors (3) set in guides (4) over the periphery and having wedge-shaped surfaces that cooperate with conical surface (11) of movable rod (10), lever (18) provided with the arms of different lengths which is secured inside housing (1) and whose small arm cooperates with the second end of movable rod (10), and indicator (17) with measuring tip mounted on housing (1). In addition, housing (1) is provided with hollow guiding stand (2) whose end is provided with measuring head. Movable rod (10) is mounted inside hollow guide of stand (2). The bearing with locking mechanism is mounted coaxially to the stand for permitting rotation with respect to it. The bearing is mounted on the outer surface of the hollow guide of the stand or its guiding rod enters the through opening made in the hollow rod and guides of the measuring head. The indicator is mounted on the housing for permitting its measuring tip to be in a contact with large arm of lever (18). The locking mechanism is made of spring-loaded balls and grooves mating to the balls, which are made on the interacting surfaces of the instrument. |
 Device for measuring linear sizes / 2290600Device comprises housing, flexible parallelogram with movable platform and flexible members that connect the movable platform with the housing, measuring device, and measuring tips. The device is provided with additional flexible parallelogram having additional movable U-shaped platform provided with projections arranged from its opposite sides, and additional flexible members secured to the projections and arranged parallel to the flexible members. One of the additional flexible members is interposed between the flexible members. The junctions of the flexible members and additional flexible members with the housing and junctions of the flexible members with the movable platform, and junctions of the additional flexible members with the additional movable platform are arranged in appropriate planes. The movable platform has a port that receives one of the additional flexible members and port for measuring device. The measuring device comprises measuring raster, indicating raster, emitter, and photodetector mounted on the holder secured to the additional movable platform for permitting rotation parallel to the flexible members, additional flexible members, and measuring raster. The measuring and indicating rasters are positioned in the plane of projections of the additional movable platform and parallel to the plane of maximum flexibility of the flexible parallelogram and additional flexible parallelogram. |
 Method and device for measuring distortion of actual rolling circle of railway wheel / 2289094Method comprises mounting supports that define the chord in the plane of the minimum diameter of the wheel flange parallel to the rolling circle and positioned at a distance from it, transferring its direction and length on the plane of the rolling circle, additional regular measurements, and recording the series of appropriate intermediate elevations and sections of the chord from the rolling circle, and estimating the distortion of the actual rolling circle from the differences of the co-ordinates from the theoretical circle in the same plane determined form the formula propose. The device comprises pickups of linear movement whose outputs are connected with inputs of the two-channel recorder, housing made of rectilinear bounded guide, electric drive mounted at the end of the guide, kinematical members of the transmission between the carriage and bearing, additional two-channel recorder, computing unit, and indicator. The recorder and computing unit are connected with the control unit connected with the electric drive. |
 Method for maintaining gaps in bearer during repairs of freight cars with trucks / 2289093Method includes altering height of bearers of body bolster beam of car and truck bolster bearers base, determining required height (thickness) of inserts for caps of bearers, and provides normalized total gap in bearers on both sides of each end of car, includes measuring absolute values of height of bearers on bolster beam of car frame h1 and truck bolster h2, aforementioned truck repaired and prepared to fullering for the car. Then, formula |
 Method and device for measuring position of neutral layer of bending beam / 2287775Method and device can be used as under laboratory conditions and when carrying calibration tests of materials for testifying correspondence to preset properties. Method of measuring position of bending beam is based upon measurement of beam's sag by means of brace mounted onto beam, which brace is provided with indicator. Elongation of outer layer of beam is measured additionally by means of ruler with indicator, which ruler has significant longitudinal and almost zero bend rigidity. Position of neutral layer of beam is found on the base of known distance between supports of brace, distance between point of fastening of ruler and indicator's needle at nominal position of beam as well as measured values of sag of beam and elongation of outer layer of beam. Device has ruler, brace with calibrated distance between support, mechanical shift indicator, mounted in center of brace, and additional indicator having case tightly fastened to ruler. Measuring tip of additional indicator has needle, which rests against surface of beam. Ruler is fixed at one end of beam. As ruler the ruler is used which has significant longitudinal and almost zero bed rigidity. |
 Reel for thin strips with roller for measuring planeness / 2286222Proposed method includes measurement of planeness in reel shaft of hot rolling mill; reel shaft is provided with movable and immovable strips between pulling device and reel; hot strip is fed to reel through its shaft by means of roller table and pulling roller of pulling device; reel is provided with drum, hold-down rollers and end guides; roller for measurement of planeness is closed in reel shaft turned inside guide strip. Moving roller used for measurement of planeness has working position at which hot strip passes around roller used for measurement of planeness retaining approximately constant wrapping angle α and lowered position; reel shaft is provided with swivel guide strip closing the roller used for measurement of planeness. |
 Measuring device / 2283474Measuring device contains body, contact assembly, two measuring rods, mounted in body and made with possible movement relatively to the latter, two movement transformers. Each measuring rod is provided with a spring. One end of measuring rods is connected to appropriate transformer of movement, and another end has a shape of wedge or cone and is connected to contact assembly. Contact block includes basing block, in which two shafts with rollers are positioned, forming two pairs, each one of which is made with possible contact with cone or wedge of appropriate measuring rod and part being measured. Movements transformers are connected to informational-computing system. |
 Method of measuring of the arbors misalignment / 2279631The invention is pertaining to the field of mechanical engineering, in particular, to the method of measuring of the arbors misalignment. The method is dealt with the measurement technology and may be used in mechanical engineering and in remedial maintenance. The invention ensures realization the measurements on one side of the arbors (in one point of contact) simultaneously of the horizontal and vertical misalignments. The method provides for installation on one of the arbors with the help of the support pole fulfilling the function of the body, the bar and the clamps, one measuring device with the movable coupling rod, on which there is the fixed body of the second measuring device, the movable coupling rod of which is also fixed to other arbor and is arranged at an angle of 90° to the movable coupling rod of the first measuring device. At that the movable coupling rod of the first measuring device, being transferred in the vertical plane measures the vertical misalignment, and the movable coupling rod of the second measuring device being transferred in the horizontal plane measures the horizontal misalignment. |
 Arrangement for alignment of mechanisms'shafts / 2279036The arrangement has a prism fastened on the shaft of one mechanism and two dial indicators fastened on the shaft of another mechanism. The sensor of one dial indicator located vertically is installed on the horizontal edge of the prism. Besides the prism has an additional edge under an angle to the horizon and the second indicator is located vertically. The sensor of the second indicator is installed on the additional edge. |
 Test structure for graduating scanning probing microscope / 2244254Device has base and artificial orderly microstructures on it with known geometric parameters, as artificial microstructures nano-spheres or micro-spheres are used, outer surface of which is covered with conductive layer. |
 Radial planimeter / 2244255Radial planimeter has lever, rotatable table, and mechanism of radial movement of roller. |
 Multi-probe contour-type sensor for scanning probing microscope / 2244256Device has base, on which cantilevers are fixed with probes at ends, platform is inserted, base is made in form of flat body, on which along contour cantilevers are placed with probes at ends, and angles between longitudinal cantilevers axes are different from 0° and have positive values, while base is connected to platform with possible rotation and fixing relatively to it. |
 Method for controlling parameters of inserts of bearing assemblies / 2245230Method is realized in vertical broaching machine tool at process of drawing parting planes of insert. Method comprises steps of controlling necessary parameters in seat with diameter of mounting surface equal to nominal diameter of opening for insert; at measuring insert height, applying control load to parting surface of insert; measuring out-of-parallelism of parting surfaces of insert relative to generatrix of outer cylindrical surface by means of two measuring instruments in mean portion along thickness of insert on parting surface in zone spaced by distance 2.5 mm from end and tongue of insert; evaluating out-of parallelism according to difference of readings of measuring instruments; controlling adjoining of generatrix of insert surface to working surface of seat by means of two induction type displacement transducers placed in seat; at controlling height and out-of-parallelism degree, placing measuring instruments on working slides of vertical broaching machine tool. |
 Device for checking parameters of holes in axle boxes of rail car wheelsets / 2247315Invention relates to devices for checking parameters of axle boxes of rail car wheelsets, namely, mean diameter and out-of-roundness in measured sections, and taper, and methods of application of said devices. Proposed device is made in form of common unit equipped with handle secured in upper of device and used for its carrying, fitting in hole of axle box and rotating, when fitted-in. Two standard inductive linear displacement transducers are used for checking linear dimensions of holes of axle boxes in places of location of two roller bearings fitted on neck of wheelset axle. Said transducers convert linear displacements into electric signals. Inductive transducers are rigidly secured in two cases on screw end of each cylindrical stop rod in turned, and in other tubular end spring-loaded cylindrical measuring tip is arranged whose rear part is in contact with spindle of inductive transducer. Ends of case of inductive transducers are arranged in guide bushings with flanges. The latter are secured on front and rear plates of instrument case. Instrument is furnished with arrester protecting inductive converters from mechanical action when bringing device into hole of box. Handle of arrester is combined with handle of device. With handle of arrester pressed on, working ends of cylindrical measuring tips and stop rods get inside guide bushings with flanges. Electric part of circuit terminates in electronic unit located in upper part of device close to handle. Alphanumeric indicator (display) is found in upper part of electronic unit. Processing of signals taken off inductive transducers is performed by turning device in hole of axle box through 360o, and results of measurement of parameters are displayed on screw of alphanumeric indicator after stopping of device. Full revolution of device takes from 7 to 10 sec. |
 Device for measuring two-sided angle / 2247316Device has movable re-arranging rods, which are mounted inside case and brought into contact with sides of angle. The rods are made in form of two curved straight prismatic plates having rectangular cross-section and connected to each other by means of telescopic joint. There is longitudinal slot in embracing plate. Embraced plate enters the slot for reciprocal motion and location of plates relatively each other. Side faces of embraced plate are provided with angular scales to read angle out. Angle is marked by surface of edge part, which embraces plates when there is the contact of four long ribs of edge parts of both plates with surfaces of sides of two-sided angle. |
FIELD: technical maintenance of transport vehicles, namely equipment for measuring setting angles of controlled wheels of transport vehicle.
SUBSTANCE: apparatus includes driving running drums kinematically coupled with drive system; driven running drums and measuring axially movable drums and in addition it includes carriages for supporting measuring movable drums, guides for carriages, pneumatic cylinders and displacement pickups.
EFFECT: enhanced accuracy of measuring convergence values of automobile wheels with different outer diameters.
3 dwg
The invention relates to the field of vehicle maintenance, and in particular to equipment for measuring the angles of the steered wheels of the cars.
Known stand model KI 4872 (Borts A.D., Zakin AH, Ivanov Y. Diagnostics of technical condition of the car. M.: Transport, 1979. - 95 S.)installed on inspection of the ditch, consisting of a supporting frame, two drive rollers with electric sensors, the device for fixing the front axle of the vehicle and remote control devices for measurement of lateral forces. Rotating the drive rollers, spin the front wheel to a predetermined speed, and the resulting lateral force at the tire contact with the roller acts on the sensors, determining and recording the magnitude of the lateral force. The value of this effort and is determined by the convergence of wheels.
The disadvantage of the stand KI 4872 is the determination of the axial force in the place of contact of the tyre and roller, which depends on the condition of the tread of the wheel and roller. The measurement accuracy is low.
The closest to the technical nature of the claimed device is a stand to determine the angles of the steered wheels of the vehicle (Russian Federation patent RU 2089845 C1, IPC G 01 5/24, 1997), containing the leading Jogging drums, kinematically connected with the actuator, driven racing bar is Ana and the measuring device. Measuring device for each of the steered wheels is made in the form of the measuring drum, movable in the axial direction and is installed between the master and slave drums on the plug. The plug consists of a rocker arm located at the edges of the supports rotation of the measuring drum and the vertical axis of rotation of the plug from the actuator rotation in both directions. When measuring the toe by turning the fork around a vertical axis in the automatic mode to achieve zero axial displacement of the measuring drum, and the position of the forks detect the angular convergence of the steered wheels of the vehicle.
The disadvantages of the considered stand is the complexity of construction, commissioning and the impossibility of measuring convergence on cars with different outside diameter wheels.
The task of this device is to improve the accuracy and the possibility of measuring the wheel alignment of the car with different external diameter of the wheels.
The solution of this problem is achieved by a device for measuring convergence of the steered wheels of the vehicle containing the leading Jogging drums, kinematically connected with a drive, led running drums and measuring movable in the axial direction of the reel, characterized in that it further comprises a carriage on which is mounted izmeritelnaya drums, guides carriages, pneumatic cylinders and displacement sensors for measuring the axial displacement of the measuring drum.
The device (see figure 1, 2, 3) consists of measuring the moving drum 1, the carriage 2, the guide carriages 3, displacement sensors 4 measuring axial displacement measuring moving reels, pneumatic cylinder 5, the leading cross-country reels 6 and driven cross-country reels 7.
The device works in the following way:
Car set on leading Jogging drums 6 and driven cross-country drums 7 front driven wheels in the correct position for rectilinear movement (neutral position), while measuring the drums 1 are in the lower position and do not touch the tires. In the pneumatic cylinders 5 are served compressed air of a certain pressure, and measuring the drums 1 are required for measuring the force pressed against the tyre tread. Rotation leading cross-country reels 6 and driven cross-country reels 7 turn the steered wheels on the required number of complete rotations. By the values of the axial displacements of the left and right of the measuring drum 1 is determined by the convergence of wheels. If necessary, re-measurement should be lowered and again to raise the measuring drums 1, they are set in neutral (initial) position. That is exactly what th dimension depends on the number of full turns of the steering wheel.
Device for measuring convergence of the steered wheels of the vehicle containing the leading Jogging drums, kinematically connected with a drive, led running drums and measuring movable in the axial direction of the reel, characterized in that it further comprises a carriage on which is mounted movable measuring drums, guide carriage, pneumatic cylinders and displacement sensors.