DD217307A1 - DEVICE FOR MEASURING THE RADIAL STORAGE AIR OF RIBBED BEARINGS - Google Patents

Abstract

A device for measuring the radial internal clearance of rolling bearings is created. The device is simple and robust, easy to handle and completely network-independent applicable, it allows the accurate measurement of the largest possible radial clearance in the shortest time and can be used as an automatic measuring station. In a housing with a handle a Betetigungsmittel is mounted, to which different spigot can be attached. The actuation means can be pushed out by means of a hand lever against a spring from the housing, whereby two Druckstuecke, which are hinged spreadable on the receiving pin, are contracted by a solid in the housing traction means. After placing the rolling bearing on the spigot, the inner ring of the rolling bearing is clamped by the Druckstuecke. A pressure pin then moves the outer ring of the rolling bearing according to the radial clearance against the probe of a displacement transducer. By means of a measuring value processing and display unit integrated in the housing, the largest possible radial internal clearance is stored and displayed as a measured value.

Description

Device for measuring the radial internal clearance of rolling bearings

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The device can be used, in particular, for random sample checks in: γ; 5 series production, but also for series measurements itself

in the rolling bearing industry for the measurement of radial bearings; be applied by rolling bearings;

- Characteristics of the known technical solutions

Known are devices in which the radial bearing clearance of a roller bearing by mutual displacement of inner and outer ring in the static state by means of a lever system

; is determined (DD PS 3492). These devices have a complicated structure and long measuring times are required.

conducive. _r " -

In DD PS 59944 a device is described, by means of the mutual rotation of inner and outer ring, wherein the entire rolling bearing is vibrated, the largest radial internal clearance, which is present in the rolling bearing, can be precisely determined. However, this device is very complicated and takes measurements

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aim

The aim of the invention is to provide a simple design and easy-to-use device for manual and automatic measurement of the radial internal clearance of rolling bearings.

The object of the invention is to provide a device for measuring the radial internal clearance of rolling bearings, in particular for random measurements in mass production, with a suitable receptacle for a rolling bearing, so that measurement errors are avoided and the measurement times remain short. The known solutions are complicated, require large measuring times, are not easy to use and are not suitable for automatic measurements. The invention solves the problem in that in an enclosure an actuating means is straightened, to which different spigot pins are attached, on the.

at least two plungers are coupled spreadable, the gelen> kig are connected to a housing-fixed traction means. On the housing diametrically opposite a feeler of Wegmeßwandlers and a pressure pin are attached, both of which are actuated via traction means and hand lever. The actuating means is adjustable via a hand lever. The three hand levers are in front of each other, but arranged on a common axis · In the housing next to the Wegmeßwandier also a battery-powered Meßwertäuswerte- and display unit housed., For automatic operation, the spigot in the actuating means are rotatably mounted without play, instead of the hand lever are mechanically operable lever used for the handle, a flange is provided and for the spigot and the

Roller bearing outer rings Is a drive device provided on the housing ·

To measure the device is taken in hand and pulled the hand lever with his forefinger from its front position to the rear on the handle, which successively the pressure pin and the Tästbolzen be raised and the actuating means is pushed out of the device. When pushing out the actuating means, the pressure pieces are pulled together by a set in the device traction means from its spread position · Thereafter, a roller bearing can be inserted on the receiving taps. ; become. By releasing the hand lever first the actuating means, by means of a resilient means which is inserted between the housing and a stop on the actuating means, pulled into the housing, whereby the pressure pieces spread over a spring and by the action of the resilient means the inner ring of the Tighten the roller bearing against the housing · Afterwards, the probe of the position transducer is pressed by the action of the measuring force spring onto the outer ring of the roller bearing, pushing it against the rolling elements and these against the roller bearing inner ring. · In this position the measured value display should be set to lull the pressure pin is pressed by the action of a tension spring relative to the (pasting pin on the outer ring of the bearing, so that the outer ring is in accordance with the radial bearing play is moved against the sensing pin

 The path change of the Tastbolzens is then as radial.

Bearing clearance displayed ·

embodiment

The invention will be explained in more detail with reference to a drawing. . ' , ·. . ' , ; "The figure shows a longitudinal section through the device.

In a "cylindrical housing 1, for example, two bearing parts 2, 3" are arranged, in which an actuating means 5, for example a rod, is guided precisely in the axial direction of the housing 1.

At the actuating means 5 different receiving pins for the 'respective rolling bearing diameter can be attached. At the Aufnahmezagf s 4 at least two. By a spring 15 aufspreizbare plungers 11 are attached, the V ,. are connected to one end of a traction means 12, whose other end in the housing 1 firmly attached, is.

On the axis 2S? a hand lever 26 is tiltably mounted, which is positively coupled with the actuating means 5. Zwisehen, the bearing parts 3 and a stop 13 on the actuating means 5 is a resilient means 14, b.eispiels-

wise ein'Druckfeder eingestzt. , _: ,,

The »actuating means 5 with the spigot 4 and the pressing pieces 11, protrudes on one side out of the housing 1. On the opposite side of the housing, a handle-28 is attached. ·.,. .,. ,

By withdrawing the hand lever 26 in the direction of the handle 28, the actuating means 5 is pushed out of the housing 1, as a result of which the pressure pieces 11 are contracted from their end position expanded by the spring 15 by the fixed pulling means 12.

In this position, a rolling bearing 6, 7, 8 are pushed onto the receiving pin 4. When the hand lever is released, the resilient means 14 pushes the actuating means 5 into the housing 1, with the two pressure pieces 11 in, spreading their end position and pushing against the inner ring 6 of the rolling bearing and pressing it firmly against the housing 1.

On Gehäusei1 diametrically opposite, in the radial direction of the V / älzlagers 6, 7, 8 movable, a sensing pin 9 and a pressure pin 10 are attached.

The sensing pin 9 is coupled to a position transducer 3Ö, whose signals reach an electronic Meßwertverarbeitungsund- display unit 27 · The sensing pin 9 is pressed by the Meßkraftfeder 19 on the outer ring 8 of the bearing.

Kippbär the lever 18 is mounted on the housing 1 and coupled on one side forcibly on the probe pin 9 and connected on the other side with a traction means 23 which is guided over two pulleys 21 "" 22 "and is connected to the central lever 25 · By retracting the hand lever 25, the sensing pin 9 is lifted from the outer ring θ of the bearing against the action of Meßkraftfeder 19 · In the same way, the lever 16 is tiltably mounted on the housing 1, which is connected on one side with a traction means 20, the is guided over two deflection rollers 21, 22 'and is connected to the first hand lever 24. On the other side, the lever 16 is fixedly and adjustably attached to the pressure bolt 10.

Of the tension spring 17Y which is arranged between the housing 1 and the lever 16, the pressure pin 10 is moved against the action of the measuring force spring 19 against the outer ring 8 of the bearing · For measuring, the device is detected on the handle 28 and the hand lever 24, 25, 26 are withdrawn in the direction of the handle 28, whereby successively first of the Druclrbolzen 1 then the probe pin 9 are lifted and then the actuating means 5 is pushed out of the housing 1, wherein the two plungers 11 are contracted.

In this position, the rolling bearing 6, 7, 8 to be measured can be placed on the corresponding receiving pin 4.

Through Los'lasseü. the hand lever 24, 25, 26 is first tightened on the thrust pieces 11 of the inner ring 6 of the bearing, then the probe pin 9 with the Wegmeßwandler 30 against the outer ring 8 of the bearing

, pressed, so that. This is applied to the Wälzkörpern.7 and the inner ring 6 · Then 'the pressure pin'10 is pressed by the tension spring 17 against the action of the Meßkraftfeder 19 against the outer ring 8 of the bearing, so that this according to: radial. Bearing game is moved »·" ·· '' ... ''.

The distance traveled, i. the statically measured radial bearing clearance of the rolling bearing 6, 7? 8 is digitally displayed on the electronic measured value processing and display unit 27

With this device ist.es now also possible by mutual rotation of inner and outer ring 6, B and Leicntem shaking the device, the rolling elements; 7 to arrange the smallest outer diameter of the inner ring 6 and the largest Iiinendurchmesser the outer ring 8, so that the largest possible radial clearance can be determined safely. By means of the electronic measured value processing "and display unit" 27, the maximum value of the displacement of the pushbutton 9 is stored and displayed.

PQ The device is simple and robust, so that it is suitable for the workshop insert »,. '

It is completely netζunabhängig used by the built-in housing Meßwertverarbeitungs- and display unit «By training as a handheld device is a simple and

_O r ^ easy handling possible.

With the device, an accurate measurement, scale value 1 / »of the radial internal clearance is possible» . >

The device is by attaching a flange, machine-operable lever and a drive for .. the inner '.

- ^ q and Außenri ig the rolling bearings used as an automatic measuring station. ".- '

Claims (8)

Inventor's pruch 1. Apparatus for measuring the radial bearing clearance of rolling bearings, consisting of a housing _f on the diametrically opposite a sensing pin of a position transducer and a pressure pin are arranged, characterized in that two bearing parts are provided in a housing in which an actuating means is exactly straightened, to the corresponding pivot pin for the different bearing diameter are firmly attached and at the receiving pin at least two plungers are coupled expandable, which are hingedly connected to the one end of a traction means, the other end fest.angebracht in the housing and that a stop is stuck on the actuating means , between which and the housing a resilient .Mittel is inserted. 2. Device according to item 1, characterized in that the pressure pin is fixedly connected to a tiltably mounted on the housing lever on which on the one hand a housing attached to the tension spring acts and on the other hand a traction means is coupled, which is guided over two pulleys and a first hand lever connected is· 3. Apparatus according to item 1, characterized in that the feeler pin is pivotally connected to a tiltably mounted on the housing lever on which a traction means is mounted, which is guided over two UmIenkrollen and connected to a second hand lever. V Device according to item 1, characterized in that the actuating means (5) is pivotally connected to a third hand lever (26) »the three hand levers (24, 25, 26) are mounted on a common axis (29) and the lever ends pointing in different directions and having different lengths « '''/'^{; :.} .. '. * ^(..' · '' 5 · device according to item 1, characterized in that the housing (1) at the opposite end at which the holding pin (4) are attached, a handle (28. ) is provided, 6, device according to point 1, characterized in that the receiving pins (4) are rotatably mounted in the ^ etätigungsmittel (5) free of play « 7. Apparatus according to item 1, characterized in that in addition to the distance measuring transducer (30) rait a sensing pin (9) and a measuring force ^ eder (19) an electronic, battery-operated Meßwertauswerte- and display unit (27) directly on the housing (1) is arranged or the housing (V) is formed so that it encloses the electronic Meßwertauswerte- and display unit with. 8 * device according to item 6, characterized in that for the automatic use of the device mechanically operable lever (24, 25, 26) are used, instead of the handle (28) a planch is provided and in a known manner a drive device for the receiving pin (4 ) and the roller bearing outer ring (8) are arranged · For this 1 string drawings