CN212063789U - Wireless intelligent barring system of hydroelectric generating set - Google Patents

Abstract

The utility model belongs to the hydroelectric generating set field of overhauing, the wireless intelligent barring system of hydroelectric generating set promptly. A plurality of wireless dial indicators for monitoring the swing degree of the main shaft are arranged along key points around the main shaft of the unit, a wireless receiving rod is arranged near the main shaft, and the receiving rod is connected with a computer through a high-definition optical fiber data line. The wireless dial indicator is fixed on the maintenance frame, the maintenance frame comprises a trapezoidal frame platform arranged on two sides of the center of the main shaft, a vertical frame surrounding the main shaft is arranged on the trapezoidal frame platform, and the wireless dial indicator is connected with the vertical frame through a support. The support comprises an L-shaped supporting rod, the front end of the L-shaped supporting rod is connected with a wireless dial indicator, the rear end of the L-shaped supporting rod is sleeved on a cross shaft of the vertical supporting column, a locking button is arranged outside the cross shaft, and the vertical supporting column is provided with a base. The intelligent wireless barring system of the unit can be popularized and applied to the overhaul of all medium and large-sized water-turbine generator sets. The automatic meter reading, recording, operation and zero setting of the axis detection are realized, and the detection is safe, accurate and high in efficiency.

Description

Wireless intelligent barring system of hydroelectric generating set

Technical Field

The utility model belongs to the hydroelectric generating set field of overhauing, the wireless intelligent barring system of hydroelectric generating set promptly.

Background

In the prior art, the turning gear of a medium-large hydroelectric generating set is used for checking the quality of the axis of the set before maintenance of the set or after reinstallation of the set, when the turning gear of the set is used, a mechanical dial indicator is respectively arranged in the direction of 90 degrees of monitoring points + X and + Y of each layer of a main shaft of the set to monitor the swing degree of the main shaft, the position of each layer of the position where the dial indicator is arranged needs to be manually read by a worker to count, 8 bisectors are drawn along the circumference at the positions of an upper guide shaft diameter and a flange, the bisectors of the upper part and the lower part are correspondingly numbered in the same position in the anticlockwise direction, the stop is needed when the turning gear is turned to one point, the worker reads the dial indicator, the 16 workers need to simultaneously read and record the meter at the measuring points in the set, the worker walks on the turning gear to cause the vibration of the meter, the dial indicator has certain influence on the numerical value, certain potential safety hazard exists on the meter reading personnel when the set rotates, and the technical, The net swing, the net full swing, the relative swing and other results are calculated in 260 steps by one-time jigger, the calculation steps are various, the time is long, the calculation is easy to be wrong, the result cannot be obtained quickly, the axis of the unit cannot be adjusted at once, and the waiting time of jigger workers is long, so that the jigger workers are not beneficial to continuous work. All parts of the existing barring gear need workers to read the meter and record, and risks and disadvantages of high-altitude operation, hole danger, mechanical injury, meter vibration, high labor consumption and the like exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the aforesaid not enough and provide a wireless intelligent barring system of hydroelectric generating set. The automatic meter reading, recording, operation and detection of the axis detection are safe, accurate and efficient.

The technical solution of the utility model is that: the wireless intelligent barring system of the hydroelectric generating set is characterized in that a plurality of wireless dial indicators for monitoring the swing degree of a main shaft are arranged around the main shaft of the hydroelectric generating set, a wireless receiving rod is arranged near the main shaft, and the receiving rod is connected with a computer through a high-definition optical fiber data line or directly.

In the scheme, the wireless dial indicator is fixed on the maintenance frame, the maintenance frame comprises a trapezoidal frame platform arranged on two sides of the center of the main shaft, a vertical frame surrounding the main shaft is arranged on the trapezoidal frame platform, and the wireless dial indicator is connected with the vertical frame through a support.

The support comprises an L-shaped supporting rod, the front end of the L-shaped supporting rod is connected with a wireless dial indicator, the rear end of the L-shaped supporting rod is sleeved on a cross shaft of the vertical supporting column, a locking button is arranged outside the cross shaft, and the vertical supporting column is provided with a base.

The utility model has the advantages that: the wireless intelligent axis barring system for the unit can automatically collect and calculate the axis swing data to obtain an axis quality result, visually represents the axis condition of the unit in a computer in a graphic mode, and is simple and quick in barring process, free of pause and capable of meeting barring requirements of any angle and suitable for axis measurement work of different types of units, and a main shaft bending point, a bending direction and an adjusting direction are clear at a glance. The field experiment shows that after the preparation work of the barring is finished, the whole barring process only needs two persons, no working personnel exist near the rotating part of the unit, and the hidden danger of the rotating part of the unit on personal safety is eliminated. And errors caused by manual meter reading errors and personnel walking are eliminated. The self-developed unit barring professional software has the functions of remote zero setting, remote reading and calculation, realizes the barring of any angle and non-pause axis, eliminates errors caused by manual calculation, is more rapid in calculation, more accurate in calculation result and high in data reliability, greatly reduces safety risk and labor cost, improves the barring work efficiency, provides reliable basis for finding out unit axis deviation and tortuosity and finding a solution in time, can greatly save the construction period in unit maintenance, and improves the quality. The intelligent wireless barring system of the unit can be popularized and applied to the overhaul of all medium and large-sized water-turbine generator sets.

Drawings

Fig. 1 is a diagram of the utility model system.

Fig. 2 is a schematic diagram of an arrangement structure of a spindle detection wireless dial indicator.

FIG. 3 is a schematic view of a stent structure.

Detailed Description

Referring to fig. 1, 2 and 3, the names of the components are as follows: the wireless dial indicator comprises a wireless dial indicator 1, a receiving rod 2, a high-definition optical fiber data line 3, a computer 4, a main shaft 5, a trapezoidal frame platform 6, a vertical frame 7, a support 8, an L-shaped supporting rod 9, a transverse shaft 10, a locking button 11, a vertical support column 12 and a base 13.

Referring to fig. 1, a wireless intelligent barring system of a hydroelectric generating set is characterized in that a plurality of wireless dial indicators 1 (sixteen are actually adopted and selected according to the actual situation) for monitoring the swing degree of a main shaft 5 are arranged around the main shaft 5 (or a main shaft) (up and down and on the circumferential position), a plurality of wireless receiving rods 2 (a plurality of 2-3 are selected according to the actual situation) are arranged near the main shaft 5 (within five meters), and the receiving rods 2 are connected with a computer 4 through high-definition optical fiber data lines 3. The receiving rod 2 is connected with the computer 4 directly (within five meters).

Referring to fig. 2, the wireless dial indicator 1 is fixed on an overhaul frame, the overhaul frame comprises a trapezoidal frame platform 6 (capable of removing maintainers) arranged on two sides of the center of the main shaft 5, a vertical frame 7 surrounding the main shaft is arranged on the trapezoidal frame platform 6 and is a rectangular frame, the wireless dial indicator 1 is mainly used for fixing the wireless dial indicator 1 on the upper portion and the lower portion of the main shaft 5 and on the circumferential position of the main shaft, and the wireless dial indicator 1 is connected with the vertical frame 7 through a support 8.

Referring to fig. 3, the support 8 includes an L-shaped support rod 9 (a round rod or a square rod), the front end of the L-shaped support rod 9 is connected to the wireless dial indicator 1, the rear end of the L-shaped support rod 9 is sleeved on a vertical support cross shaft 10 (which can rotate and adjust the swing angle), the cross shaft 10 is externally provided with a locking button 11 to fix the L-shaped support rod 9, and the vertical support 12 is provided with a base 13.

Wireless intelligent barring system accessory and use:

the wireless dial indicator 1 is a German Mark Mshr digital display dial indicator 1 with 1086Ri 0-12.5mm and comprises: but long-range zero setting, wireless bluetooth transmission data, measurement accuracy is at 0.01mm, the stable performance.

The wireless receiving rod 2, the selected wireless receiving rod O6R2021 type, can receive the bluetooth signal of the dial indicator, have two-way transmission function.

And 3, selecting a high-definition optical fiber data line with the length of 30 meters for reducing signal attenuation (2 Kinect body sensors USB3.0, and selecting according to actual distance).

One notebook computer (above Windows7, display terminal). The USB splitter is standby (3.0 high speed).

The independently developed unit axis automatic analysis computer software is suitable for various types of units. The axis result can be automatically obtained according to the returned data without manual calculation, and the deviation value, the deviation direction and the deviation point are clear at a glance. After the wireless dial indicator 1 is arranged, manual operation is not needed, and the functions of remote zero setting and remote reading are realized. The barring process does not need personnel to read and record, thereby reducing the safety risk and eliminating the error. And the wireless remote meter reading, zero setting and calculation are completed by one key.

And a signal processing process:

firstly, a set instruction key is pressed on a notebook computer 4, a zero setting command is sent out, a sent signal is sent to a working area of a wireless dial indicator 1 through a high-definition optical fiber data line 3 and a wireless receiving rod 2, the wireless dial indicator 1 receives the zero setting command to complete the initial measurement data of the wireless dial indicator 1 to reach a zero position, and the wireless dial indicator 1 starts measurement. When data is required to be measured, a data collecting key is pressed on the notebook computer 4, a command is transmitted to the wireless dial indicator 1, the wireless dial indicator 1 sends a measured value which is displayed immediately, the measured value is transmitted to the notebook computer 4 through the wireless receiving rod 2 and the high-definition optical fiber data wire 3, the notebook computer 4 directly fills the data into a corresponding data position through professional software, the professional software automatically completes a calculation task, a unit axis related data result and a main shaft zigzag figure are displayed in a software result area, and information such as the zigzag quantity, the zigzag direction, the padding direction, the zigzag point and the like of the main shaft 5 of the generator is completely displayed.

The working process of the wireless intelligent barring system of the unit is as follows:

firstly, wireless dial indicators 1 are installed at each measuring point of a main shaft 5 of the unit according to sequence numbers, a notebook computer 4 is started up to be connected with a high-definition optical fiber data line 3, the other end of the high-definition optical fiber data line 3 is connected with a wireless receiving rod 2, the wireless receiving rod 2 is sent to the position near the measuring point (within five meters), software in the computer 4 is started to test the signal connection condition of the wireless dial indicators 1, and the turning work can be started after the data connection between the wireless dial indicators 1 and the computer 4 is determined to be correct.

And (3) field work: before the locomotive is set, the wireless dial indicator 1 is required to be arranged on each layer of measuring points of a main shaft 5 of the locomotive, manual zero setting and meter reading are not required, after the wireless dial indicator 1 is firmly installed, all personnel withdraw from the interior of the locomotive, data of the short-distance wireless dial indicator 1 are directly transmitted into a notebook computer 4 through a wireless receiving rod 2, data of the wireless dial indicator 1 at a far distance are connected between the wireless receiving rod 2 and the computer 4 through a high-definition optical fiber data wire 3, professional software in the computer 4 is opened, data connection conditions of the wireless dial indicators 1 are checked and tested, and the locomotive can be started after the connection is confirmed to be normal. The electric barring switch is started, the main shaft 5 starts to rotate, each surface can be set to be zero, read and calculated by one key at the end of the computer 4, the main shaft 5 does not need to pause in the rotating process, one barring work can be finished after the main shaft 5 rotates for one circle, the data of the throw of each point of the main shaft 5 is transmitted to the computer 4 in a wireless mode, the barring of the unit at any angle without pause is realized, the professional software obtains the calculation result of the axis at the same time, and the data of the throw, the net throw, the full throw, the net full throw, the relative throw, the inflection point, the inflection direction, the adjustment direction and the like of the axis of the unit are clear at a glance, so that a reliable basis is provided for the.

The automatic calculation software of the axis of the machine set comprises: the data measured at each measuring point by the wireless dial indicator 1 can be received, and the received data of the throw degree of the main shaft 5 is calculated and analyzed to obtain the corresponding axis throw degree, net throw degree, full throw degree, net full throw degree, relative throw degree, inflection point, inflection direction, adjusting direction of the main shaft 5 and the inflection simulation graph of the whole main shaft 5 of the generator.

The above description is only exemplary of the present invention, and the various illustrations do not limit the essence of the present invention.

Claims (3)

1. Wireless intelligent barring system of hydroelectric generating set, its characterized in that sets up wireless percentage table (1) of a plurality of monitoring main shafts (5) throw along unit main shaft (5) around, sets up wireless receiving rod (2) near main shaft (5), and receiving rod (2) are connected with computer (4) through high definition optic fibre data line (3).

2. The wireless intelligent barring system of the hydroelectric generating set according to claim 1, wherein the wireless dial indicator (1) is fixed on an overhaul frame, the overhaul frame comprises a trapezoidal frame platform (6) arranged on two sides of the center of the main shaft (5), a vertical frame (7) surrounding the main shaft is arranged on the trapezoidal frame platform (6), and the wireless dial indicator (1) is connected with the vertical frame (7) through a support (8).

3. The wireless intelligent barring system of the hydroelectric generating set according to claim 2, wherein the support (8) comprises an L-shaped support rod (9), the front end of the L-shaped support rod (9) is connected with the wireless dial indicator (1), the rear end of the L-shaped support rod (9) is sleeved on a vertical support cross shaft (10), a locking button (11) is arranged outside the cross shaft (10), and the vertical support (12) is provided with a base (13).

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