CN202119785U - Direct-driven motor rotator speed measuring device - Google Patents

Direct-driven motor rotator speed measuring device Download PDF

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Publication number
CN202119785U
CN202119785U CN 201120233090 CN201120233090U CN202119785U CN 202119785 U CN202119785 U CN 202119785U CN 201120233090 CN201120233090 CN 201120233090 CN 201120233090 U CN201120233090 U CN 201120233090U CN 202119785 U CN202119785 U CN 202119785U
Authority
CN
China
Prior art keywords
slip ring
measuring device
speed measuring
hole
motor
Prior art date
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
CN 201120233090
Other languages
Chinese (zh)
Inventor
王国力
赵炳胜
蔡晓峰
刘衍选
马强
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenyang China Creative Wind Energy Co Ltd
China Creative Wind Energy Co Ltd
Original Assignee
Shenyang China Creative Wind Energy Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shenyang China Creative Wind Energy Co Ltd filed Critical Shenyang China Creative Wind Energy Co Ltd
Priority to CN 201120233090 priority Critical patent/CN202119785U/en
Application granted granted Critical
Publication of CN202119785U publication Critical patent/CN202119785U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to a direct-driven motor rotator speed measuring device, belonging to the technical field of wind generating set, and comprising a signal disc, a slip ring, a proximity switch and a fixing bracket thereof, wherein the static component of the slip ring is fixed on a motor stator, the rotational component of the slip ring is connected with an impeller wheel wheel hub connected with a rotator, the signal disc is connected with the rotational component of the slip ring, the proximity switch is fixed on the static component of the slip ring through the fixing bracket, the static component of the slip ring is connected with the stator of the motor, and the signal wire of the proximity switch is connected with an external control system. The direct-driven motor rotator speed measuring device enables synchronization rotation of the signal disc and the wheel hub to be realized, through the slip ring rotational component connected with the impeller wheel wheel hub and the signal disc arranged on the slip ring rotational component, realizes motor rotator speed detection through detecting pulse signals and sending the pulse signals to the external control system by the proximity switch, is simple in structure and low in cost, and is barely arranged outside the motor housing thereby being convenient for replacement and maintenance.

Description

A kind of direct drive motor rotor speed measuring device
Technical field
The utility model belongs to the aerogenerator technical group field, particularly relates to a kind of direct drive motor rotor speed measuring device.
Background technology
Along with reaching its maturity of domestic wind power technology, wind power generating set is also progressively begun to maximization, direct-driving type, offshore wind farm development by miniaturization, landlocked blower fan.Wherein straight wind dispelling machine technology development is particularly rapid, and the technology of especially in large fan, directly driving more has superiority.
For the direct-driving type generator, be in operation in order accurately to measure and control the rotating speed of rotor, need the rotor speed measurement mechanism.Especially from security consideration, need two kinds of speed measuring devices at least.Common way is that perforate is tested the speed on generator internal friction dish, and the shortcoming of this speed measuring device is to be not easy to maintenance, replacing.A kind of in addition mode commonly used is to carry out tachometric survey at the electric slip ring one end installation scrambler with generator coaxle, and this mode that tests the speed is more safe and reliable, but cost is higher.
The utility model content
To the technical matters of above-mentioned existence, the utility model provides a kind of lower-cost, more simple direct drive motor rotor speed measuring device of repair and replacement.
The utility model is realized through following technical scheme:
A kind of direct drive motor rotor speed measuring device; Comprise signal panels, slip ring, near switch and fixed mount thereof, the stationary parts of said slip ring is fixed on the motor stator, on the impeller hub that the rotatable parts of slip ring are connected with rotor is connected; Said signal panels are connected with the rotatable parts of slip ring; Saidly be fixed on through its fixed mount on the stationary parts of slip ring near switch, the stationary parts of slip ring is connected with the stator of motor, is connected with external control system near the signal wire of switch.
Described signal panels evenly have a plurality of holes along its disk, and said hole correspondence is near the position of the switch.The hole that has on the said signal panels is circular hole, square hole, elliptical aperture, strip hole, diamond hole or scallop hole.
The beneficial effect of the utility model is:
The utility model is through being connected the slip ring rotatable parts on the wind wheel wheel hub; And be arranged on the signal panels of slip ring rotatable parts; Realize that signal panels and wheel hub rotate synchronously,, realize detecting the speed of rotor through detecting pulse signal and be delivered to external control system near switch.It is simple in structure, cost is lower, expose outside motor housing, is convenient to change safeguard.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Among the figure: 1, stator, 2, rotor, 3, impeller hub, 4, the stationary parts of slip ring, 5, near switch, 6, signal panels, 7, the rotatable parts of slip ring, 8, connecting rod.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further detailed description.
Embodiment: as shown in Figure 1; The utility model comprises signal panels 6, slip ring, near switch 5 and fixed mount thereof; The stationary parts 4 of said slip ring is fixed on the motor stator 1; The rotatable parts 7 of slip ring are connected through bolt on the impeller hub 3 that is connected with rotor 2, and said signal panels 6 are connected with rotatable parts 7 bolts of slip ring, saidly are fixed on the stationary parts 4 of slip ring through its fixed mount near switch 5; The stationary parts 4 of slip ring and the stator 1 of motor are connected through connecting rod 8 bolts, are connected with external control system near the signal wire of switch 5.
Signal panels 6 described in the utility model evenly have a plurality of holes along its disk, and said hole correspondence is near switch 5 positions.The hole that has on the said signal panels 6 is circular hole, square hole, elliptical aperture, strip hole, diamond hole, scallop hole and irregular hole, can produce pulse signal.
When rotor 2 rotates under wind wheel wheel hub 3 drives; The rotatable parts 7 of slip ring drive signal panels 6 and rotate together; Stationary parts 4 and motor stator 1 near switch 5, slip ring keep stationary state, so the utility model speed measuring device just produces the pulse signal synchronous with rotor.Signal wire through being connected with external control system near switch 5 transmits signal.

Claims (3)

1. direct drive motor rotor speed measuring device; It is characterized in that: comprise signal panels, slip ring, near switch and fixed mount thereof, the stationary parts of said slip ring is fixed on the motor stator, on the impeller hub that the rotatable parts of slip ring are connected with rotor is connected; Said signal panels are connected with the rotatable parts of slip ring; Saidly be fixed on through its fixed mount on the stationary parts of slip ring near switch, the stationary parts of slip ring is connected with the stator of motor, is connected with external control system near the signal wire of switch.
2. direct drive motor rotor speed measuring device according to claim 1 is characterized in that: described signal panels evenly have a plurality of holes along its disk, and said hole correspondence is near the position of the switch.
3. direct drive motor rotor speed measuring device according to claim 1 is characterized in that: the hole that has on the said signal panels is circular hole, square hole, elliptical aperture, strip hole, diamond hole or scallop hole.
CN 201120233090 2011-07-05 2011-07-05 Direct-driven motor rotator speed measuring device Expired - Fee Related CN202119785U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201120233090 CN202119785U (en) 2011-07-05 2011-07-05 Direct-driven motor rotator speed measuring device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201120233090 CN202119785U (en) 2011-07-05 2011-07-05 Direct-driven motor rotator speed measuring device

Publications (1)

Publication Number Publication Date
CN202119785U true CN202119785U (en) 2012-01-18

Family

ID=45460840

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201120233090 Expired - Fee Related CN202119785U (en) 2011-07-05 2011-07-05 Direct-driven motor rotator speed measuring device

Country Status (1)

Country Link
CN (1) CN202119785U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102980944A (en) * 2012-11-13 2013-03-20 上海交通大学 System and method for rotor system on-line health monitoring
CN107860939A (en) * 2017-09-19 2018-03-30 武汉船用机械有限责任公司 A kind of rotation-speed measuring device and measuring method of hydraulic pressure immersed pump

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102980944A (en) * 2012-11-13 2013-03-20 上海交通大学 System and method for rotor system on-line health monitoring
CN102980944B (en) * 2012-11-13 2014-12-24 上海交通大学 System and method for rotor system on-line health monitoring
CN107860939A (en) * 2017-09-19 2018-03-30 武汉船用机械有限责任公司 A kind of rotation-speed measuring device and measuring method of hydraulic pressure immersed pump
CN107860939B (en) * 2017-09-19 2020-09-15 武汉船用机械有限责任公司 Rotating speed measuring device and method of hydraulic immersed pump

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20120118

Termination date: 20180705

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