RU15942U1 - PRECISION UNIT FOR TRANSFER OF SIGNALS OF MEASURING SENSORS OF A ROTATING SHAFT - Google Patents

Abstract

1. Current collection device for transmitting signals of measuring sensors from a rotating shaft, comprising a detachable current collection ring, a signal pickup mechanism, a conductive line and strain gauges, characterized in that the conductive line is formed by insulated wires having branching at one end, each of which is connected to respective parts the slip ring, and the second end of the conductor is connected to the sensor, while the signal pickup mechanism from the rings is made in the form of strings fixed to the platform, mounted on a fixed part of the machine. 2. The collector device according to claim 1, characterized in that the strings cover the collector ring in an arc, providing continuous contact of the string with the ring.

Description

The utility model relates to load-measuring equipment and can be widely used in any sector of the national economy, such as, for example, in automotive engineering, mechanical engineering, and shipbuilding, for transmitting signals from sensors of torque and bending moment, speed, etc.

Known two-brush brush holder for the contact rings of electric machines with freely movable brushes in the cages, which are pressed to the contact rings by springs that are mounted on the ends of the beam mounted in the holder with the possibility of free rotation around the transverse axis. C see A. p. N 154592. M. cl. H 01 R 39/403

A disadvantage of the known device is the need to use a separate current collector for each contact ring diameter, since the use of one current collector for contact rings of different diameters does not allow brushes to be arranged normal to the surface of the contact ring, resulting in a distortion of the brushes, resulting in a significant change transition resistance, brush wear and increase measurement errors. As a result, the reliability and accuracy of the measurement are reduced. Besides. such a device does not allow it to be used for working with bollards of cars of various diameters due to a change in the diameter of the contact rings, i.e., it significantly limits its functionality.

Also known is a current-collecting device for transmitting the signals of measuring sensors from a rotating shaft, containing a rocker, brush holders and spring-loaded brushes installed in them against each contact ring made detachably and consisting of the same parts. C see A. p. N 902127 M. cl. H 01 R 39/00)

However, the disadvantage of this device is that for shaft testing requires additional disassembly and assembly work with the machines, which increases the verification time of the object, leads to additional costs and limited functionality.

kiyonalny opportunities by carrying out measurement of the required indicators in any conditions.

The specified technical result is achieved due to the fact that the collector for transmitting the signals of the measuring sensors from the rotating shaft is equipped with a conductive line formed by insulated wires having a branch at one end that is connected to both parts of the collector ring, and the second end of the conductor is connected to the sensor, wherein the signal pickup mechanism from the rings is made in the form of strings fixed on a platform mounted on a fixed part of the machine. In turn, the strings covering the collector ring along the arc. Provide continuous contact of the string with the ring and MAY be used to remove the Signal from rings of any diameter. Also, the collapsible design of the device allows you to measure the required performance directly on the machine without additional disassembly and assembly operations of its design.

In FIG. 1 presents a structural diagram of the proposed device.

The gokosemny device for transmitting the signals of the measuring sensors from the rotating shaft is a detachable housing 1, consisting of two identical parts 2. connected by screws 3 and 4 with nuts 5 and 6. In the housing i there are current-collecting half rings 7, 8, which are interconnected a ring, and a conductive line 9, formed by insulated conductors connected by the end 10 to the sensor, and by branching 11 with both parts of the half rings 7, 8. To the rings are connected strings 12, pressed by springs 13. which are fixed on a fixed plate atForm 14.

A current-collecting device operates for transmitting signals of measuring sensors from a rotating shaft as follows: the body 1 of the current-collecting device is mounted on the shaft through elastic gaskets C sponge rubber; and are connected by Screws 3 and 4. In this case, the current collection wires 11 are laid between the housing 1 and the elastic gasket. When the shaft rotates, a change in the resistance of the strain gauge or other measuring device is transmitted to the collector half rings 7 and 8 and through the strings 12. covering the half rings 7 and 8 in an arc, is transmitted to the recording equipment.

Thus, the use of the proposed current collector device does not require additional collapsible and assembly work and allows the measurement of indicators in any CONDITIONS, that is, it expands the functionality when measuring the required shaft parameters.

Claims (2)

1. Current collection device for transmitting signals of measuring sensors from a rotating shaft, comprising a detachable current collection ring, a signal pickup mechanism, a conductive line and strain gauges, characterized in that the conductive line is formed by insulated wires having branching at one end, each of which is connected to respective parts the slip ring, and the second end of the conductor is connected to the sensor, while the signal pickup mechanism from the rings is made in the form of strings fixed to the platform, The torah is mounted on the fixed part of the machine. 2. The collector device according to claim 1, characterized in that the strings cover the collector ring in an arc, providing continuous contact of the string with the ring.