CN208328860U - Hydroelectric power plant's flood discharge arc gate opening feedback mechanism based on rotary encoder - Google Patents
Hydroelectric power plant's flood discharge arc gate opening feedback mechanism based on rotary encoder Download PDFInfo
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- CN208328860U CN208328860U CN201820692767.9U CN201820692767U CN208328860U CN 208328860 U CN208328860 U CN 208328860U CN 201820692767 U CN201820692767 U CN 201820692767U CN 208328860 U CN208328860 U CN 208328860U
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- rotary encoder
- power plant
- gate opening
- hydroelectric power
- flood discharge
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Abstract
The utility model discloses a kind of hydroelectric power plant's flood discharge arc gate opening feedback mechanism based on rotary encoder, including mechanical return mechanism, it further include shell and controller, rotary encoder and SSI signal output interface are equipped in the shell, the rotary encoder is connected with mechanical return mechanism, the output end of the rotary encoder is connected by cable with signal output interface, and the output end of the signal output interface is connected by cable with controller.The utility model replaces import Novel encoder by carrying out structure of modification to existing feedback device, and feedback device output signal can guarantee that arc door operation operational safety is stable, open degree feedback measurement is accurate not by other equipment transfers.
Description
Technical field
The utility model relates to the detection devices of hydroelectric power plant's flood discharge arc door, and in particular to a kind of water based on rotary encoder
Power plant's flood discharge arc gate opening feedback mechanism.
Background technique
As shown in Figure 1, the existing arc gate opening feedback device of most of hydroelectric power plants includes mechanical return mechanism at present, in machine
Optical fiber incremental encoder b is installed in the magnetic coupling code room a of tool response agency side, is passed through using optical fiber incremental encoder b
Aperture measurement and control instrument (such as LCK-A type gatage measurement and control instrument) transfer accesses PLC module again and carries out feedback measurement, aperture measurement and control instrument
High failure rate is backward plus encoder techniques, precision is not high, haves the defects that accumulated error；So as to cause arc door left and right sides aperture
It is unable to real-time and precise feedback, the problem of arc door operation is terminated because of the overproof alarm operation of height on both sides in the process easily occurs, when serious
It will lead to arc door and be tilted over the major hidden danger being stuck in greatly in the air.
Utility model content
The technical problems to be solved in the utility model: it in view of the above problems in the prior art, provides a kind of based on rotation volume
Hydroelectric power plant's flood discharge arc gate opening feedback mechanism of code device, the utility model is by carrying out structure of modification replacement to existing feedback device
Import Novel encoder, feedback device output signal can guarantee that arc door operation operational safety is steady not by other equipment transfers
Fixed, open degree feedback measurement is precisely.
In order to solve the above-mentioned technical problem, the technical solution adopted in the utility model are as follows:
The utility model provides a kind of hydroelectric power plant's flood discharge arc gate opening feedback mechanism based on rotary encoder, including machinery
Response agency further includes shell and controller, is equipped with rotary encoder and SSI signal output interface, the rotation in the shell
Turning encoder to be connected with mechanical return mechanism, the output end of the rotary encoder is connected by cable with signal output interface,
The output end of the signal output interface is connected by cable with controller.
Preferably, the rotation code-disc for fixing wirerope, the mechanical return machine are equipped in the mechanical return mechanism
The rotating disc that the outer wall of structure is equipped with bracket and is fixedly connected with rotation code-disc, the outside of the rotating disc, which is equipped with, passes through magnetic patch
Connected connection switch block, the rotary encoder is rack-mount and main shaft is connected by shaft coupling with connection switch block.
Preferably, the shell is made of inner cover interconnected and outer cover.
Preferably, the signal output interface is SSI serial signal transfer interface.
Compared to the prior art, the utility model have subordinate the utility model has the advantages that the utility model include mechanical return mechanism,
Shell and controller, shell is interior to be equipped with rotary encoder and SSI signal output interface, rotary encoder and mechanical return mechanism phase
Even, the output end of rotary encoder is connected by cable with signal output interface, and the output end of signal output interface passes through cable
It is connected with controller, the utility model replaces import Novel encoder, feedback by carrying out structure of modification to existing feedback device
Device output signal can guarantee that arc door operation operational safety is stable, open degree feedback measurement is accurate not by other equipment transfers.
The utility model reduces by one of transfer aperture measurement and control instrument equipment fault point, selects strong antijamming capability, output accuracy height, absolute value
The import photoelectric encoder of measurement ensure that the measurement of arc gate opening feedback precisely, can effectively avoid surveying because of open degree feedback device
The problem of accuracy of measurement is low, error accumulation and relay device failure cause big aperture measurement error, open degree feedback failure, eliminates arc door
Left and right sides operation correction is frequently and arc door is tilted over the security risk being stuck in greatly in the air, has positive promotion price in hydroelectric power plant
Value.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of existing feedback device.
Fig. 2 is the structural schematic diagram of the utility model embodiment.
Marginal data: 1, mechanical return mechanism；11, code-disc is rotated；12, bracket；121, magnetic patch；13, rotating disc；14, join
Switch through block；2, shell；21, inner cover；22, outer cover；3, controller；4, rotary encoder；41, shaft coupling；5, signal output interface.
Specific embodiment
As shown in Fig. 2, the present embodiment provides a kind of hydroelectric power plant's flood discharge arc gate opening feedback mechanism based on rotary encoder,
Including mechanical return mechanism 1, further includes shell 2 and controller 3, rotary encoder 4 is equipped in shell 2 and the output of SSI signal connects
Mouth 5, rotary encoder 4 is connected with mechanical return mechanism 1, and the output end of rotary encoder 4 passes through cable and signal output interface 5
It is connected, the output end of signal output interface 5 is connected by cable with controller 3.The feedback device of the present embodiment is in original feedback
Device carries out local flow improvement, increases bindiny mechanism using the mechanical return mechanism 1 of former feedback device and is changed to absolute value measurement
The rotary encoder 4 of type, feedback device output SSI signal are directly accessed controller 3, not by other equipment transfers, pass through control
Device 3 processed determines gatage in real time.
As shown in Fig. 2, being equipped with the rotation code-disc 11 for fixing wirerope, mechanical return mechanism 1 in mechanical return mechanism 1
Outer wall be equipped with bracket 12 and with the rotating disc 13 that is fixedly connected of rotation code-disc 11, the outside of rotating disc 13, which is equipped with, passes through magnetic
The connected connection switch block 14 of block 121, rotary encoder 4 be mounted on bracket 12 and main shaft by shaft coupling 41 with couple switch block 14
It is connected.Mechanical return mechanism 1 feeds back the wirerope of aperture by rotation code-disc 11 on fixed piston cylinder, because being rotation code-disc
11, no matter so gate opening, rope stretch or shortening when closing, are not in rope loosing situation.Bracket 12 is main
If closed coupling 41, rotary encoder 4 play fixed supporting role.Couple switch block 14 and magnetic patch 121 for realizing rotation
Rotation transmitting between disk 13, shaft coupling 41, the fixed rotation code-disc 11 of the magnetic force that magnetic patch 121 generates guarantee that rotation code-disc 11 rotates
When shaft coupling 41 can also rotate synchronously, shaft coupling 41 for drive rotary encoder 4 rotate synchronously to detect aperture.
As shown in Fig. 2, shell 2 is made of inner cover 21 interconnected and outer cover 22, it is easily installed and safeguards.
In the present embodiment, controller 3 specifically uses PLC controller, furthermore also can according to need using other controllers.
In the present embodiment, rotary encoder 4 is used to export practical rotation amount by signal when closing gate opening
Interface 5 is transmitted to controller 3 to determine practical gatage.
In the present embodiment, signal output interface 5 is SSI serial signal transfer interface, and the SSI serial signal way of output has
It is remote to transmit out distance, strong antijamming capability, the high feature of output resolution ratio.
The above is only the preferred embodiment of the utility model, and the protection scope of the utility model is not limited merely to
Above-described embodiment, technical solution belonging to the idea of the present invention belong to the protection scope of the utility model.It should refer to
Out, for those skilled in the art, it is without departing from the principle of the utility model it is several improvement and
Retouching, these improvements and modifications also should be regarded as the protection scope of the utility model.
Claims (4)
1. a kind of hydroelectric power plant's flood discharge arc gate opening feedback mechanism based on rotary encoder, including mechanical return mechanism (1), special
Sign is: further including shell (2) and controller (3), rotary encoder (4) are equipped in the shell (2) and the output of SSI signal connects
Mouth (5), the rotary encoder (4) are connected with mechanical return mechanism (1), and the output end of the rotary encoder (4) passes through electricity
Cable is connected with signal output interface (5), and the output end of the signal output interface (5) is connected by cable with controller (3).
2. hydroelectric power plant's flood discharge arc gate opening feedback mechanism according to claim 1 based on rotary encoder, feature exist
In: the rotation code-disc (11) for fixing wirerope, the mechanical return mechanism (1) are equipped in the mechanical return mechanism (1)
Outer wall be equipped with bracket (12) and with rotation code-disc (11) rotating disc (13) that is fixedly connected, the rotating disc (13) it is outer
Side is equipped with the connection switch block (14) being connected by magnetic patch (121), and the rotary encoder (4) is mounted on bracket (12) and main shaft
It is connected by shaft coupling (41) with connection switch block (14).
3. hydroelectric power plant's flood discharge arc gate opening feedback mechanism according to claim 1 based on rotary encoder, feature exist
In: the shell (2) is made of inner cover interconnected (21) and outer cover (22).
4. hydroelectric power plant's flood discharge arc gate opening feedback mechanism according to claim 1 based on rotary encoder, feature exist
In: the signal output interface (5) is SSI serial signal transfer interface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820692767.9U CN208328860U (en) | 2018-05-10 | 2018-05-10 | Hydroelectric power plant's flood discharge arc gate opening feedback mechanism based on rotary encoder |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820692767.9U CN208328860U (en) | 2018-05-10 | 2018-05-10 | Hydroelectric power plant's flood discharge arc gate opening feedback mechanism based on rotary encoder |
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| CN208328860U true CN208328860U (en) | 2019-01-04 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112391975A (en) * | 2020-11-05 | 2021-02-23 | 通号通信信息集团有限公司 | Gate movement and control method thereof |
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2018
- 2018-05-10 CN CN201820692767.9U patent/CN208328860U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112391975A (en) * | 2020-11-05 | 2021-02-23 | 通号通信信息集团有限公司 | Gate movement and control method thereof |
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