SU1529062A1 - Device for checking tension vibrations of v-belts - Google Patents

Abstract

The invention relates to instrumentation and machine tool construction and can be used to control the quality of belts used in precision machine tools. The aim of the invention is to improve the accuracy. The goal is achieved by inserting a bracket 18 with a stop screw and a tripod 14 with an indicator head 13, which contacts its sensor element with the housing 11 mounted on the base 1 by means of a tension device and connected with the pulley 10, to the device. The stop screw contacts the housing. 7, mounted on the base 1 with the aid of an additional mounting and force sensor 6 and associated with the pulley 8. After installing the belt pretension, the increment of the tension force is measured using the indicator head 13, preliminarily stop screw housing 7. 4 il.

Description

one

(21) 4321050 / 24-10

(22) 10/01/87

(46) 15.12-89. Bul No. 46

(71) Plant-technical college of the Krasnoyarsk Polytechnic Institute

(72) A.G.Pavlov and A.N.Teuges

(53) 531.781 (088o8)

(56) USSR author's certificate number 19P65, cl. G 01 L 5/06, 1965.

USSR author's certificate number 678356, cl. G 01 L 5/04, 1977.

(54) DEVICE FOR THE CONTROL OF THE VIBRATION OF THE TENSION OF V-BELTS

(57) The invention relates to instrument making and machine tool construction and can be used to control the quality of belts used in precision machine tools. The aim of the invention is to improve the accuracy. The goal is achieved by inserting a crusty 18 with a stop screw and a tripod 14 with an indicator head 13 in contact with its sensitive element with the case 1I mounted on the base I using a tension device and connected with the pulley IO, the screw is in contact With the housing 7 mounted on the base 1 by means of an additional fastening and force sensor 6 and connected to the 8 o shchiv. After installing the belt pretensioning, the increment of the tension force is measured using an indicator head 13 Odzhav abutment body 7 vintomo yl about 4

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The invention relates to instrumentation and machine tool construction and can be used to control the quality of linear belts used in precision machine tools and measuring machines.

The aim of the invention is to increase accuracy.

Figure 1 shows the change in the force of the initial tension along the length of the belt for its run; FIG. 2 is a device, side view; on fig.Z - the same, id above; Fig. 4 is a graph for determining the increment of the tension force.

The device contains a base I, a bracket 2, rigidly attached to the base with bolts and nuts, a screw 3 for adjusting the force of pressure, a bar 4, 5 ty, a dynamometer 6 mounted on the platform of the bracket. T g are welded to the housing 7 of the driving pulley 8c

The device also includes test belts 9, driven pinch 10, body P, test pad 12, highly sensitive measuring head 13 with a division of 0.2 µm, support 14, handle 15, retentive 16 of increased stiffness, which is included in housing groove and secured with bolt joints, lever 17 for turning the stop screw, bracket 18, rack 19, entering the housing groove and rigidly connected to it with screws and nuts, two bearing housing 20 in which the axis can be rotated 21, mounted on rolling bearings with part of st The NDA includes a stop bar 22, which axially holds the lead screw 23, the shaft 24 to rotate the track, the nut 25 rigidly connected to the post 16, which moves along with the body of the driven shoulder along the T-shaped guide 26, the stop screw 27 for fixing the housing, shaft 28 for rotating the drive pulley by the handle 29 and platform 30 for installing a dynamometer

A bracket 18 attached to the base of the stand, a stop screw 27 and a lever 17 for turning (the stop screw) form a mechanism for fixing the drive pulley body after applying a tension force, designed to stabilize the center distance of the pulleys

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when testing belts (when they are tested by g).

The device operates as follows.

Depending on the length of the tested belts, rotating the screw 23 displaces the post 16 so as to provide the required center distance between the pulleys, and fix it to the base. After installation, the belt rotates the screw 3 and displaces the body 7 of the drive pin to the left, turning it around the axis 21 installed in the rolling bearings. At the same time, on the scale of the dynamometer, the value of the tension force of the belt is observed.

After the required tension has been created by means of the screw 3, the lever 17 rotates the screw 27 up to the stop in the housing 7 in order to ensure a constant center distance between the pulleys. Then, with the handle 29, the roller 28 is rotated, the pulley 8 is rotated and the belt is rotated by 1-2 turns. At the same time, the largest deviation of the test platform 12 is recorded to the left and right, and then these deviations are summed up in MKMt. , 4) determine the magnitude of the increment of the tension force of the belt during its operation. The deviation of the control platform should not exceed 4-5 μm to the left and to the right, which can be achieved by selecting the rack 16 for the required rigidity.

Claims (1)

Invention Formula A device for monitoring the tension of the V-belts, comprising two cases, each of which contains a shaft, on the protruding part of which a pulley is fixed, the first case being connected to the base with a tension device, and the second one using a force sensor and additional fastening This is due to the fact that, in order to increase accuracy, a stop screw mounted on the bracket mounted on the base, the indicator head mounted on the plate mounted on the base, and stop screw to It contacts the second body, and the sensitive element of the head - with the first body. So, H . 3 / 30 2d 28 right  , fpuei L f 1  r Ti, y. r7 17  G 1 / 26 25 2 23 22 Fig.Z ABOUT le ez / 1o // trol / oi / r ou affffUj mpg