CN103595193A

CN103595193A - Motor end cover capable of realizing state monitoring of bearing

Info

Publication number: CN103595193A
Application number: CN201310620865.3A
Authority: CN
Inventors: 白保东; 王禹; 胡召富; 陈志雪; 于江华
Original assignee: Shenyang University of Technology
Current assignee: Shenyang University of Technology
Priority date: 2013-11-29
Filing date: 2013-11-29
Publication date: 2014-02-19

Abstract

The invention relates to a motor end cover capable of realizing state monitoring of a bearing. The motor end cover capable of realizing state monitoring of the bearing comprises a bearing current measuring mechanism and a bearing temperature measuring hole. The bearing current measuring mechanism is composed of an end cover frame, a bearing chamber, a nylon plastic insulation layer, a Z type measuring gasket, a measuring contact and a binding post, wherein the bearing chamber is arranged in the center of the end cover frame in the axial direction, the nylon plastic insulation layer is installed in the bearing chamber, the Z type measuring gasket is installed in the nylon plastic insulation layer, and the measuring contact is connected with the Z type measuring gasket. A traditional motor end cover is specially modified, the structures of the nylon plastic insulation layer and the measuring gasket are additionally provided, and therefore the motor end cover achieves real-time monitoring of states of a motor bearing, reduces vibration of a motor, provides a guarantee for the operation stability of the motor, and has great significance for improvement of production efficiency.

Description

A kind of electric motor end cap of realizing bearing condition monitoring

Technical field

The invention belongs to electrical engineering field, relate generally to a kind of electric motor end cap of realizing bearing condition monitoring, specifically refer to a kind of monitoring that realizes motor bearings state by end cap special construction, and reduce motor oscillating.

Background technology

In motor operation course, the more difficult detection of lubricating grease state in motor bearings state and bearing, and shaft current size has embodied bearing and lubricating grease state thereof, from a standard electric airborne measurements shaft current, be directly impossible, detecting in the past and whether having shaft current is generally by detecting the size of shaft voltage, to judge the insulation property of bearing.During measurement, normally rotating shaft and end cap are together in series, and by transducer, signal is inputted to oscilloscope and measure, yet while measuring by the method, carbon brush need to be installed, motor is carried out to start-stop operation, so not only consuming time but also can cause certain harm to producing.

Summary of the invention

Goal of the invention:

The invention provides a kind of electric motor end cap of realizing bearing condition monitoring, its object is easily motor bearing lubricating grease state and bearing temperature to be monitored motor is in service, and reduces motor oscillating.Measuring process is safe and reliable, and can not work the mischief to motor and production.

Technical scheme: the present invention implements by the following technical programs:

A kind of electric motor end cap of realizing bearing condition monitoring, comprise shaft current measuring mechanism and bearing temperature measured hole, it is characterized in that: shaft current measuring mechanism is comprised of end cap framework, bearing chamber, nylon plastic(s) insulating barrier, Z-type measurement pad, measurement contact, binding post; Bearing chamber be arranged on end cap gimbal axis to center, nylon plastic(s) insulating barrier is arranged in bearing chamber, Z-type is measured pad and is installed in nylon insulating barrier, measures contact and measures pad with Z-type and be connected, binding post is installed on end cap framework.

Described bearing temperature measured hole is through end cap framework and nylon plastic(s) insulating barrier.

Advantage and effect:

(1) the invention solves the problem of monitoring bearing state easily and safely, can when measuring, not need just measurement data exactly of special measuring equipment and veteran technical staff;

(2) and this measurement device method simple and safe, can not cause personal injury;

(3) by conventional motors end cap is carried out to special transformation, add nylon insulating barrier, measure the structures such as pad, realized the Real-Time Monitoring of motor bearings state, and reduce motor vibrations, and to the stability of motor operation, provide guarantee, significant to the raising of production efficiency.

accompanying drawing explanation:

Fig. 1 is structural representation of the present invention;

Fig. 2 is the end view of Fig. 1;

Fig. 3 is the vertical view of Fig. 1.

Description of reference numerals:

1, end cap framework, 2, bearing chamber, 3, nylon plastic(s) insulating barrier, 4, Z-type measures pad, 5, measure contact, 6, bearing temperature measured hole, 7, binding post.

embodiment:

Below in conjunction with accompanying drawing, the present invention is specifically described:

The invention provides a kind of electric motor end cap of realizing bearing condition monitoring, can be in service easily to motor shaft lubricating grease state at motor, bearing temperature is monitored, and reduces motor oscillating also, measuring process is safe and reliable, and can not work the mischief to motor and production.

A kind of electric motor end cap of realizing bearing condition monitoring, comprise shaft current measuring mechanism and bearing temperature measured hole 6, it is characterized in that: shaft current measuring mechanism is comprised of end cap framework 1, bearing chamber 2, nylon plastic(s) insulating barrier 3, Z-type measurement pad 4, measurement contact 5, binding post 7; Bearing chamber 2 is arranged on the axial center of end cap framework 1 (bearing chamber 2 is the cavity of end cap framework 1 inside center position), nylon plastic(s) insulating barrier 3 is arranged in bearing chamber 2, Z-type is measured pad 4 and is installed in nylon insulating barrier 3, measure contact 5 and be connected with Z-type measurement pad 4, binding post 7 is installed on end cap framework 1.

Described bearing temperature measured hole 6, through end cap framework 1 and nylon plastic(s) insulating barrier 3, can insert temperature sensor in bearing temperature measured hole 6.

Bearing temperature measured hole 6 tilts through end cap framework 1 and nylon plastic(s) insulating barrier 3, can more convenient insertion temperature sensor.

The operation principle of the above-mentioned electric motor end cap of realizing bearing condition monitoring is as follows:

When needs are monitored motor bearings state, the idle end of measuring contact 5 is connected with binding post 7, by oscillographic current probe measurement, flow through the shaft current of measuring contact, if the larger explanation bearing film of this electric current state is better, bearing state is better; If electric current is less, illustrate that bearing film state is poor, should change in time lubricating grease.When needs are measured motor when operation bearing temperature, temperature sensor is inserted to bearing temperature measured hole 6, can measure bearing operation temperature rise.

The present invention can realize the electric motor end cap of bearing condition monitoring, by conventional motors end cap is carried out to special transformation, add nylon insulating barrier, measure the structures such as pad, realized the Real-Time Monitoring of motor bearings state, and reduce motor vibrations, and to the stability of motor operation, provide guarantee, significant to the raising of production efficiency.

Claims

1. the electric motor end cap that can realize bearing condition monitoring, comprise shaft current measuring mechanism and bearing temperature measured hole (6), it is characterized in that: shaft current measuring mechanism is comprised of end cap framework (1), bearing chamber (2), nylon plastic(s) insulating barrier (3), Z-type measurement pad (4), measurement contact (5), binding post (7); Bearing chamber (2) is arranged on the axial center of end cap framework (1), nylon plastic(s) insulating barrier (3) is arranged in bearing chamber (2), Z-type is measured pad (4) and is installed in nylon insulating barrier (3), measure contact (5) and be connected with Z-type measurement pad (4), binding post (7) is installed on end cap framework (1).

2. can realize according to claim 1 the electric motor end cap of bearing condition monitoring, it is characterized in that: described bearing temperature measured hole (6) is through end cap framework (1) and nylon plastic(s) insulating barrier (3).