CN211374806U - Calibration device of hydroelectric generating set speed measuring device - Google Patents
Calibration device of hydroelectric generating set speed measuring device Download PDFInfo
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- CN211374806U CN211374806U CN202020395566.XU CN202020395566U CN211374806U CN 211374806 U CN211374806 U CN 211374806U CN 202020395566 U CN202020395566 U CN 202020395566U CN 211374806 U CN211374806 U CN 211374806U
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Abstract
The utility model provides a hydroelectric set speed sensor's calibration equipment. Hydroelectric set speed sensor's calibration equipment includes: a support; the rotating mechanism comprises an alternating current motor and a variable frequency speed regulator, and the alternating current motor is fixedly arranged on the bracket; the simulation turntable is fixedly arranged on a rotating shaft of the alternating current motor; the mounting seat is mounted on the bracket and used for mounting a speed measuring probe of the speed measuring device of the hydroelectric generating set; the variable-frequency speed regulator is used for controlling the rotating speed of the alternating current motor and outputting a rotating speed signal corresponding to the rotating speed. The utility model provides a hydroelectric set speed sensor's calibration equipment has convenient operation, can be quick carry out the advantage of calibration to hydroelectric set's speed sensor.
Description
Technical Field
The utility model relates to a hydraulic generator technical field especially relates to a hydroelectric set speed sensor's calibration equipment.
Background
A speed measuring fluted disc is installed on a main shaft of the existing water-turbine generator set, a speed measuring device is generally installed on the water-turbine generator set, and the rotating speed of the speed measuring fluted disc is detected through the speed measuring device so as to obtain the rotating speed of the main shaft of the water-turbine generator set in real time and know the operating condition of the water-turbine generator set in time.
In the process of maintenance, the speed measuring device needs to be checked so as to ensure the accuracy of the speed measuring device and eliminate potential safety hazards caused by misdetection. In the prior art, the related validation device has a complex structure and is inconvenient to operate.
Therefore, it is necessary to provide a calibration apparatus for a hydroelectric generating set speed measuring device to solve the above technical problems.
SUMMERY OF THE UTILITY MODEL
The utility model provides a technical problem provide a convenient operation, simple structure's hydroelectric set speed sensor's calibration equipment.
In order to solve the technical problem, the utility model provides a hydroelectric set speed sensor's calibration equipment, include:
a support;
the rotating mechanism comprises an alternating current motor and a variable frequency speed regulator, and the alternating current motor is fixedly arranged on the bracket;
the simulation turntable is fixedly arranged on a rotating shaft of the alternating current motor;
the mounting seat is mounted on the bracket and used for mounting a speed measuring probe of the speed measuring device of the hydroelectric generating set;
the variable-frequency speed regulator is used for controlling the rotating speed of the alternating current motor and outputting a rotating speed signal corresponding to the rotating speed.
Preferably, the mounting seat is an adjustable fixing seat.
Preferably, the fixed cover in the outside of alternating current motor's pivot is equipped with bears the dish, bear the top of dish with the bottom of simulation carousel contacts, the top of simulation carousel is equipped with fixed the cover and establishes alternating current motor's the epaxial fixed block of pivot, the bottom fixed mounting of fixed block has annular briquetting, the bottom of annular briquetting with the top of simulation carousel contacts.
Preferably, the top and the bottom of the simulation rotating disc are respectively provided with two clamping grooves which are distributed annularly, the bottom of the annular pressing block and the top of the bearing disc are respectively and fixedly provided with a clamping block which is distributed annularly, and one clamping block is embedded into one clamping groove.
Preferably, the top of the fixed block is provided with a positioning groove, and a rotating shaft of the alternating current motor extends into the positioning groove.
Preferably, two fastening bolts are symmetrically installed on the fixing block, and the fixing block is fixedly connected with the rotating shaft of the alternating current motor through the two fastening bolts.
Compared with the prior art, the utility model provides a hydroelectric set speed sensor's calibration equipment has following beneficial effect:
the utility model provides a calibration device of a speed measuring device of a hydroelectric generating set, which drives a simulation turntable to rotate through an alternating current motor, controls the rotating speed of the alternating current motor through a variable frequency speed regulator and outputs a rotating speed signal corresponding to the rotating speed;
the rotating speed of the alternating current motor is adjusted through the variable-frequency speed regulator, so that the simulation turntable can simulate various rotating speeds of a speed measuring fluted disc of the water turbine generator set under different working conditions and obtain rotating speed signals corresponding to the various rotating speeds; the actual rotating speed value can be obtained according to the rotating speed signal;
the mounting base is used for mounting a speed measuring probe of the speed measuring device of the hydroelectric generating set, so that the speed measuring device can measure the measured value of the rotating speed of the simulation rotating disc;
compare actual rotational speed value and measured value, can learn measuring device's measurement accuracy to in the debugging and the maintenance to measuring device, with the measurement accuracy of guaranteeing to install behind hydraulic generator.
Drawings
Fig. 1 is a schematic view of a first embodiment of a calibration device for a speed measuring device of a hydroelectric generating set according to the present invention;
fig. 2 is a schematic front sectional view of a first embodiment of the calibration device of the speed measuring device of the hydroelectric generating set provided by the present invention;
fig. 3 is a schematic front sectional view of a second embodiment of the calibration device of the speed measuring device of the hydroelectric generating set provided by the present invention;
fig. 4 is an enlarged schematic view of a portion a shown in fig. 3.
Reference numbers in the figures: 1. the device comprises a support, 2, a rotating mechanism, 3, a simulation turntable, 4, a speed measuring probe, 5, a bearing disc, 6, a fixing block, 7, an annular pressing block, 8, a clamping block, 9, a clamping groove, 10 and a fastening bolt.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and embodiments.
The first embodiment:
referring to fig. 1 and fig. 2, in a first embodiment of the present invention, a calibration device of a speed measuring device of a hydroelectric generating set includes:
a bracket 1;
the rotating mechanism 2 comprises an alternating current motor and a variable frequency speed regulator, and the alternating current motor is fixedly arranged on the bracket 1;
the simulation turntable 3 is fixedly arranged on a rotating shaft of the alternating current motor;
the mounting seat is mounted on the support 1 and used for mounting a speed measuring probe 4 of the speed measuring device of the hydroelectric generating set;
the variable-frequency speed regulator is used for controlling the rotating speed of the alternating current motor and outputting a rotating speed signal corresponding to the rotating speed.
In this embodiment, the variable frequency speed regulator may be provided with a display, and the display is configured to receive the rotation speed signal and output a rotation speed value corresponding to the rotation speed signal.
It can be understood that in other real-time rates, the variable-frequency speed regulator can also be connected with other external output equipment, and the rotating speed value corresponding to the rotating speed signal is obtained through the external output equipment.
In this embodiment, the speed probe 4 may be an inductive proximity switch, or may be another type of speed probe.
The mounting base may be an adjustable mounting base.
The operating principle of the calibration device of the speed measuring device of the hydroelectric generating set provided by the embodiment is as follows:
the simulation turntable is driven to rotate by the alternating current motor, the rotating speed of the alternating current motor is controlled by the variable frequency speed regulator, and a rotating speed signal corresponding to the rotating speed is output;
the rotating speed of the alternating current motor is adjusted through the variable-frequency speed regulator, so that the simulation turntable can simulate various rotating speeds of a speed measuring fluted disc of the water turbine generator set under different working conditions and obtain rotating speed signals corresponding to the various rotating speeds; the actual rotating speed value can be obtained according to the rotating speed signal;
the mounting base is used for mounting a speed measuring probe of the speed measuring device of the hydroelectric generating set, so that the speed measuring device can measure the measured value of the rotating speed of the simulation rotating disc;
compare actual rotational speed value and measured value, can learn measuring device's measurement accuracy to in the debugging and the maintenance to measuring device, with the measurement accuracy of guaranteeing to install behind hydraulic generator.
Second embodiment:
based on hydroelectric set speed sensor's that the first embodiment of this application provided calibration equipment, the second embodiment of this application provides another kind of hydroelectric set speed sensor's calibration equipment. The second embodiment is merely a preferred way of the first embodiment, and the implementation of the second embodiment does not affect the implementation of the first embodiment alone.
The second embodiment of the present invention will be further explained with reference to the drawings and the embodiments.
Referring to fig. 3 and 4 in combination, the calibration device of the hydroelectric generating set speed measuring device further includes a bearing disc 5 fixedly sleeved on the outer side of the rotating shaft of the ac motor, the top of the bearing disc 5 contacts with the bottom of the simulation rotating disc 3, a fixed block 6 fixedly sleeved on the rotating shaft of the ac motor is arranged above the simulation rotating disc 3, an annular pressing block 7 is fixedly installed at the bottom of the fixed block 6, and the bottom of the annular pressing block 7 contacts with the top of the simulation rotating disc 3.
Two clamping grooves 9 which are distributed annularly are formed in the top and the bottom of the simulation rotary table 3, a clamping block 8 which is distributed annularly and a clamping block 8 embedded into the clamping groove 9 are fixedly mounted at the bottom of the annular pressing block 7 and the top of the bearing disc 5.
The top of fixed block 6 has seted up the constant head tank, alternating current motor's pivot extends to in the constant head tank 6.
Two fastening bolts 10 are symmetrically installed on the fixing block 6, and the fixing block 6 is fixedly connected with a rotating shaft of the alternating current motor through the two fastening bolts 10.
The operating principle of the calibration device of the speed measuring device of the hydroelectric generating set provided by the embodiment is as follows:
when the simulation turntable 3 is installed, the simulation turntable 3 is only required to be lifted and placed on the bearing disc 5 fixedly sleeved on the rotating shaft of the alternating current motor, the clamping block 8 on the bearing disc 5 is clamped into the clamping groove 9 at the bottom of the simulation turntable 3, then the fixing block 6 is sleeved on the rotating shaft of the alternating current motor, the clamping block 8 on the annular pressing block 7 is clamped into the clamping groove 9 at the top of the simulation turntable 3, then the fixing block 6 is fixed on the rotating shaft of the alternating current motor by two fastening bolts 10, the fixing work of the simulation rotating disc 3 is completed, the simulation turntable 3 can be effectively fixed through the bearing plate 5, the simulation turntable 3 can be quickly fixed through the annular pressing block 7, the clamping block 8, the fixing block 6, the clamping groove 9 and the fastening bolt 10, meanwhile, the simulation turntable 3 and the rotating shaft of the alternating current motor can be prevented from rotating relatively, so that the reliability of the test is ensured.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (6)
1. The utility model provides a hydroelectric set speed sensor's calibration equipment which characterized in that includes:
a support;
the rotating mechanism comprises an alternating current motor and a variable frequency speed regulator, and the alternating current motor is fixedly arranged on the bracket;
the simulation turntable is fixedly arranged on a rotating shaft of the alternating current motor;
the mounting seat is mounted on the bracket and used for mounting a speed measuring probe of the speed measuring device of the hydroelectric generating set;
the variable-frequency speed regulator is used for controlling the rotating speed of the alternating current motor and outputting a rotating speed signal corresponding to the rotating speed.
2. The calibration device for the speed measuring device of the hydroelectric generating set according to claim 1, wherein the mounting seat is an adjustable fixing seat.
3. The calibration device for the speed measuring device of the hydroelectric generating set according to claim 1, wherein a bearing disc is fixedly sleeved outside the rotating shaft of the ac motor, the top of the bearing disc contacts with the bottom of the simulation rotating disc, a fixed block fixedly sleeved on the rotating shaft of the ac motor is arranged above the simulation rotating disc, an annular pressing block is fixedly installed at the bottom of the fixed block, and the bottom of the annular pressing block contacts with the top of the simulation rotating disc.
4. The calibration device for the speed measuring device of the hydroelectric generating set according to claim 3, wherein the top and the bottom of the simulation turntable are respectively provided with two clamping grooves which are distributed annularly, the bottom of the annular pressing block and the top of the bearing disc are respectively and fixedly provided with a clamping block which is distributed annularly, and one clamping block is embedded into one clamping groove.
5. The calibration device for the speed measuring device of the hydroelectric generating set according to claim 4, wherein a positioning groove is formed in the top of the fixing block, and the rotating shaft of the alternating current motor extends into the positioning groove.
6. The calibration device for the speed measuring device of the hydroelectric generating set according to claim 5, wherein the fixing block is symmetrically provided with two fastening bolts, and the fixing block is fixedly connected with the rotating shaft of the alternating current motor through the two fastening bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020395566.XU CN211374806U (en) | 2020-03-25 | 2020-03-25 | Calibration device of hydroelectric generating set speed measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020395566.XU CN211374806U (en) | 2020-03-25 | 2020-03-25 | Calibration device of hydroelectric generating set speed measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211374806U true CN211374806U (en) | 2020-08-28 |
Family
ID=72173444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020395566.XU Active CN211374806U (en) | 2020-03-25 | 2020-03-25 | Calibration device of hydroelectric generating set speed measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211374806U (en) |
-
2020
- 2020-03-25 CN CN202020395566.XU patent/CN211374806U/en active Active
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