CN212363641U - Non-contact type large shaft creep monitoring device - Google Patents

Abstract

The utility model discloses a non-contact type monitoring device for the creep of a large shaft, which consists of a display touch screen, a work indicator lamp, a core processing unit, a power input port, a signal output port, a No. 1 shielding connecting cable, a sensor mounting bracket, a signal input port, a No. 2 photoelectric sensor, a No. 2 shielding connecting cable, a No. 1 photoelectric sensor, a fluted disc, a front panel and a back panel, the utility model discloses can realize the real-time monitoring of the creep condition of the large shaft of a unit, when monitoring the creep of the large shaft, the device outputs an alarm signal to prompt power station personnel to put into a brake, prevent the large shaft of the unit from continuously creeping to cause serious accidents, and ensure the safety of the unit; corresponding information such as parameter set values, creep angles and displacements of the large shaft, historical data curves, alarm records and the like can be displayed on the touch screen, and the data can be stored and called at any time, so that powerful basis is provided for creep fault analysis of the unit.

Description

Non-contact type large shaft creep monitoring device

Technical Field

The utility model relates to a hydraulic generator field especially relates to a non-contact main shaft wriggling monitoring devices.

Background

When the water leakage reaches a certain degree, water flow impacts the rotating wheel to enable the rotating part of the unit to slowly rotate, namely the large shaft of the unit crawls. The creep of a large shaft of the unit has great harm to a bearing, when the large shaft creeps, the bearing bush is in a friction state, if the time is too long, the surface of the bearing bush is easily rubbed, and finally the bush is burnt, so that the unit has great accidents. Therefore, the monitoring of the creep state of the large shaft of the unit is necessary. At present, most of large shaft creep monitoring devices adopt a mechanical friction mode for measurement, namely, a friction disc of the large shaft creep monitoring device is in contact with the surface of a large shaft of a unit, when the large shaft creeps, the friction disc is driven to deflect by friction force, and after a rotating angle reaches a certain angle, a triggering device sends out a creep alarm signal. Because of contact measurement, can take place device offset behind the big axle wriggling monitoring devices of throwing and withdrawing many times, with the phenomenon of big axle contact failure to lead to measuring inaccurate, can't detect even that the big axle wriggling takes place, this kind of big axle wriggling monitoring devices structure is complicated moreover, installation and operation maintenance difficulty. In view of this, need to develop a measuring accuracy height, the reliability is high, simple structure, and simple to operate does benefit to the operation maintenance, can real-time supervision main beam wriggling situation's main beam wriggling monitoring devices, provides reliable means for unit main beam wriggling monitoring, ensures the safe operation of unit.

Disclosure of Invention

The utility model aims at developing a measurement accuracy is high, and the reliability is high, simple structure, and simple to operate does benefit to the operation maintenance, can real-time supervision main beam wriggling situation's main beam wriggling monitoring devices. The technical scheme of the utility model is that: by showing touch-sensitive screen (1), work pilot lamp (2), core processing unit (3), power input port (4), signal output port (5), shielded connecting cable (6) No. 1, sensor installing support (7), signal input port (8), No. 2 photoelectric sensor (9), No. 2 shielded connecting cable (10), No. 1 photoelectric sensor (11), fluted disc (12), front panel (13), backplate (14) are constituteed, show touch-sensitive screen (1), work pilot lamp (2) inlay on front panel (13), power input port (4), signal output port (5), signal input port (8) are installed on backplate (14) with the form of screw terminal piece, core processing unit (3) are located wriggling monitoring devices's inside, show touch-sensitive screen (1), power input port (4), signal output port (5), The signal input port (8) is plugged into the core processing unit (3) through a flat cable, the work indicator lamp (2) is connected with the power input port (4) in a hard-wired mode, the fluted disc (12) is installed on the unit main shaft (15), the sensor installation support (7) is vertically installed with the fluted disc (12), the photoelectric sensor (11) and the photoelectric sensor (9) are installed on the sensor installation support (7) in a threaded mode, the photoelectric sensor (11) is connected with the signal input port (8) through the shielded connecting cable (6) 1, and the photoelectric sensor (9) is connected with the signal input port (8) through the shielded connecting cable (10) 2.

The utility model has the advantages that:

1. the non-contact measurement is realized by adopting a measurement principle of combining a fluted disc with high processing precision with a photoelectric sensor, and the problem of inaccurate measurement of the position offset of the device caused by long-term contact action is avoided;

2. 2 advanced photoelectric sensors are adopted to realize redundant measurement, so that the measurement precision and the reliability are high;

3. the device has simple structure, convenient installation and small workload of operation and maintenance;

4. the display touch screen is configured, so that the operation is simple and convenient, and the display information is rich and visual;

5. the system has the functions of data storage, query and alarm output, and is convenient for fault analysis.

Drawings

FIG. 1 is a front view of the monitoring device for the peristalsis of the main shaft

FIG. 2 is a schematic view of the installation of the monitoring device for the creep of the main shaft

Detailed Description

As shown in fig. 1 and 2, the utility model relates to a non-contact type staff wriggling monitoring devices, it comprises display touch screen 1, work pilot lamp 2, core processing unit 3, power input port 4, signal output port 5, No. 1 shielded connecting cable 6, sensor installing support 7, signal input port 8, No. 2 photoelectric sensor 9, No. 2 shielded connecting cable 10, No. 1 photoelectric sensor 11, fluted disc 12, front panel 13, backplate 14.

The fluted disc 12 is arranged on a big shaft 15 of the unit, and the sensor mounting bracket 7 and the fluted disc 12 are welded and fixed after being adjusted to be 10mm away in the vertical direction; installing a No. 1 photoelectric sensor 11 and a No. 2 photoelectric sensor 9 on a sensor mounting bracket 7 in a threaded mode; then, the No. 1 photoelectric sensor 11 is connected with the signal input port 8 through the No. 1 shielded connecting cable 6, and the No. 2 photoelectric sensor 9 is connected with the signal input port 8 through the No. 2 shielded connecting cable 10; the power input port 4 provides a working power supply for the large-shaft creep monitoring device, and the working indicator lamp 2 is turned on after the large-shaft creep monitoring device is connected with the working power supply; the signal input port 8 sends an external input signal into the core processing unit 3, the core processing unit 3 monitors and processes the input signal, and records and stores the measured data, thereby realizing the real-time monitoring of the creep condition of the large shaft; parameters such as the diameter of a large shaft, an alarm value and the like are set through the display touch screen 1, and when the creep rotation angle of the large shaft of the unit reaches the alarm set value, an alarm signal is output by the signal output port 5; and the information such as the creep angle and displacement of the large shaft, a historical data curve, an alarm event record and the like can be inquired through the display touch screen 1, so that an effective basis is provided for the fault analysis of the unit.

Claims (1)

1. A non-contact type large shaft creep monitoring device is characterized in that: by showing touch-sensitive screen (1), work pilot lamp (2), core processing unit (3), power input port (4), signal output port (5), shielded connecting cable (6) No. 1, sensor installing support (7), signal input port (8), No. 2 photoelectric sensor (9), No. 2 shielded connecting cable (10), photoelectric sensor (11) No. 1, fluted disc (12), front panel (13), backplate (14) are constituteed, show touch-sensitive screen (1), work pilot lamp (2) inlay on front panel (13), power input port (4), signal output port (5), signal input port (8) are installed on backplate (14) with the form of screw terminal piece, core processing unit (3) are located the inside of staff wriggling monitoring devices, show touch-sensitive screen (1), power input port (4), signal output port (5), Signal input port (8) are plugged in core processing unit (3) through the winding displacement, work pilot lamp (2) and power input port (4) are connected with hard-wired's form, fluted disc (12) are installed on unit macroaxis (15), sensor installing support (7) and perpendicular installation of fluted disc (12), 1 number photoelectric sensor (11) and 2 number photoelectric sensor (9) are installed on sensor installing support (7) through the screw thread form, 1 number photoelectric sensor (11) link to each other with signal input port (8) through 1 number shielded connecting cable (6), 2 number photoelectric sensor (9) link to each other with signal input port (8) through 2 number shielded connecting cable (10).

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