CN203067156U - External water-turbine spray-needle displacement feedback device - Google Patents

External water-turbine spray-needle displacement feedback device Download PDF

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Publication number
CN203067156U
CN203067156U CN2013200215470U CN201320021547U CN203067156U CN 203067156 U CN203067156 U CN 203067156U CN 2013200215470 U CN2013200215470 U CN 2013200215470U CN 201320021547 U CN201320021547 U CN 201320021547U CN 203067156 U CN203067156 U CN 203067156U
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CN
China
Prior art keywords
feedback device
transmission arm
external water
movable rod
displacement feedback
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2013200215470U
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Chinese (zh)
Inventor
何瑞廷
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Chongqing Water Turbine Works Co Ltd
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Chongqing Water Turbine Works Co Ltd
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Publication date
Application filed by Chongqing Water Turbine Works Co Ltd filed Critical Chongqing Water Turbine Works Co Ltd
Priority to CN2013200215470U priority Critical patent/CN203067156U/en
Application granted granted Critical
Publication of CN203067156U publication Critical patent/CN203067156U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

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  • Hydraulic Turbines (AREA)

Abstract

The utility model provides an external water-turbine spray-needle displacement feedback device which aims to resolve the problems that impulse water-turbine spray-needle displacement feedback devices in the prior art are quite inconvenient to examine, repair and maintain, and the like. The external water-turbine spray-needle displacement feedback device comprises a portal frame, a linear displacement sensor, a travel switch, a movable rod, a machine base, a disc spring and a transmission arm, wherein the linear displacement sensor and the travel switch are respectively installed on the front face and the back face of the portal frame, the movable rod is installed at the center of the portal frame, the machine base is installed on the lower portion of the portal frame, the lower portion of the movable rod is connected with the transmission arm, and the disc spring is sleeved on the lower portion of the movable rod; and the movable rod and the transmission arm connected with the movable rod penetrate through a machine shell, and the lower end of the transmission arm is contacted with a nozzle rocker arm. The external water-turbine spray-needle displacement feedback device has the advantages that position signals of a spray needle are transmitted to the linear displacement sensor and the travel switch by means of vertical movement of the transmission arm and the movable rod, displacement information of two groups of different signal sources can be emitted simultaneously, and the external water-turbine spray-needle displacement feedback device is suitable for various standards and forms of impulse water-turbine nozzles.

Description

External water turbine nozzle needle Displacement Feedback device
Technical field
The utility model relates to external water turbine nozzle needle Displacement Feedback technology, specially refers to a kind of external water turbine nozzle needle Displacement Feedback device.
Background technique
Nozzle needle Displacement Feedback device is a vitals of impulse turbine, and it mainly acts on is the displacement situation that reflects nozzle needle in real time, ensures the normal operation of water wheels unit.Prior art nozzle needle Displacement Feedback device mostly is built-in structure; be about to the sensor servomotor piston tail in the spray pipe of directly packing into; by protective tube lead is caused outside the casing; its structure is simple relatively; because jet pipe is placed in the casing, if the working environment more complicated is when overhauling sensor; need nozzle is disintegrated, repair and maintenance is extremely inconvenient.In addition, when sensor electrical signal access failure, can't learn the residing particular location of nozzle needle, output signal has only analog amount, and does not have switching value.Obviously, prior art impulse turbine nozzle needle Displacement Feedback device exists extremely problem such as inconvenience of repair and maintenance.
Summary of the invention
For solving extremely problem such as inconvenience of repair and maintenance that prior art impulse turbine nozzle needle Displacement Feedback device exists.The utility model proposes a kind of external water turbine nozzle needle Displacement Feedback device.The utility model external water turbine nozzle needle Displacement Feedback device comprises door shape frame, linear displacement transducer, position limit switch, motion bar, support, dish spring and transmission arm; The tow sides of door shape frame are respectively arranged with linear displacement transducer and position limit switch, and the center of door shape frame is provided with motion bar, and the bottom of door shape frame is provided with support, and the bottom of motion bar connects transmission arm, and the dish spring is sleeved on the bottom of motion bar; Door shape frame is fixed on the casing outside by support, and motion bar and connected transmission arm pass casing, and the lower end of its transmission arm contacts with the nozzle rocking arm.
The useful technique effect of the utility model external water turbine nozzle needle Displacement Feedback device is that the position signal of nozzle needle is delivered to linear displacement transducer and position limit switch by moving up and down of transmission arm and motion bar, can send the displacement information in two groups of unlike signal sources simultaneously, be applicable to plurality of specifications and form impulse water wheel machine nozzle, and easy to maintenance, reliable performance.
Description of drawings
Accompanying drawing 1 is installed in the position view at water turbine station for the utility model external water turbine nozzle needle Displacement Feedback device;
Accompanying drawing 2 is the structural representation of facing of the utility model external water turbine nozzle needle Displacement Feedback device;
Accompanying drawing 3 is the backsight structural representation of the utility model external water turbine nozzle needle Displacement Feedback device.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model external water turbine nozzle needle Displacement Feedback device is further described.
Accompanying drawing 1 is installed in the position view at water turbine station for the utility model external water turbine nozzle needle Displacement Feedback device, accompanying drawing 2 is the structural representation of facing of the utility model external water turbine nozzle needle Displacement Feedback device, accompanying drawing 3 is the backsight structural representation of the utility model external water turbine nozzle needle Displacement Feedback device, and among the figure, 1 is door shape frame, 2 is linear displacement transducer, 3 is position limit switch, and 4 is motion bar, and 5 is support, 6 is the dish spring, and 7 is transmission arm.As seen from the figure, the utility model external water turbine nozzle needle Displacement Feedback device comprises door shape frame 1, linear displacement transducer 2, position limit switch 3, motion bar 4, support 5, dish spring 6 and piston shaft 7; The tow sides of door shape frame 1 are respectively arranged with linear displacement transducer 2 and position limit switch 3, and the center of door shape frame 1 is provided with motion bar 4, and the bottom of door shape frame 1 is provided with support 5, and the bottom of motion bar 4 connects transmission arm 7, and dish spring 6 is sleeved on the bottom of motion bar 4; Door shape frame 1 is fixed on the casing outside by support 5, and motion bar 4 and connected transmission arm 7 pass casing, and the lower end of its transmission arm 7 contacts with the nozzle rocking arm.The utility model external water turbine nozzle needle Displacement Feedback device adopts the linear displacement signal of transmission arm and movable rod member nozzle needle to pass to linear displacement transducer and position limit switch respectively, can send the displacement information in two groups of unlike signal sources simultaneously.Because electrical appliance parts such as linear displacement transducer and position limit switch are arranged on outside the casing, therefore, do not need special maintenance and management.Owing to adopt motion bar to carry out the displacement information transmission, if when different units uses, only needing that motion bar and associated component thereof are done some accommodation gets final product, therefore, the utility model external water turbine nozzle needle Displacement Feedback device can be used for the different structure of the single, double nozzle of impulse turbine and multiinjector unit.The dish spring that the utility model external water turbine nozzle needle Displacement Feedback device is sleeved on the motion bar bottom produces a downward power, by transmission arm the long end points of nozzle rocking arm is contacted all the time with nozzle needle piston shaft afterbody, eliminated the signal dead band that nozzle needle produces in movement process.In addition, because motion bar one end in the casing outside, can pass through the motion conditions of visual observations nozzle.
Obviously, the useful technique effect of the utility model external water turbine nozzle needle Displacement Feedback device is that the position signal of nozzle needle is delivered to linear displacement transducer and position limit switch by moving up and down of transmission arm and motion bar, can send the displacement information in two groups of unlike signal sources simultaneously, be applicable to plurality of specifications and form impulse water wheel machine nozzle, and easy to maintenance, reliable performance.

Claims (1)

1. external water turbine nozzle needle Displacement Feedback device, it is characterized in that: this device comprises door shape frame, linear displacement transducer, position limit switch, motion bar, support, dish spring and transmission arm; The tow sides of door shape frame are respectively arranged with linear displacement transducer and position limit switch, and the center of door shape frame is provided with motion bar, and the bottom of door shape frame is provided with support, and the bottom of motion bar connects transmission arm, and the dish spring is sleeved on the bottom of motion bar; Door shape frame is fixed on the casing outside by support, and motion bar and connected transmission arm pass casing, and the lower end of its transmission arm contacts with the nozzle rocking arm.
CN2013200215470U 2013-01-16 2013-01-16 External water-turbine spray-needle displacement feedback device Expired - Fee Related CN203067156U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013200215470U CN203067156U (en) 2013-01-16 2013-01-16 External water-turbine spray-needle displacement feedback device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013200215470U CN203067156U (en) 2013-01-16 2013-01-16 External water-turbine spray-needle displacement feedback device

Publications (1)

Publication Number Publication Date
CN203067156U true CN203067156U (en) 2013-07-17

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ID=48765955

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013200215470U Expired - Fee Related CN203067156U (en) 2013-01-16 2013-01-16 External water-turbine spray-needle displacement feedback device

Country Status (1)

Country Link
CN (1) CN203067156U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107462172A (en) * 2017-09-19 2017-12-12 徐工集团工程机械有限公司 Nozzle opening degree detection means, big gun head and fire water monitor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107462172A (en) * 2017-09-19 2017-12-12 徐工集团工程机械有限公司 Nozzle opening degree detection means, big gun head and fire water monitor
CN107462172B (en) * 2017-09-19 2024-02-02 江苏徐工工程机械研究院有限公司 A nozzle opening degree detecting device gun head and fire water gun

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130717

Termination date: 20160116

EXPY Termination of patent right or utility model