CN106908620A - A kind of haulage cable linear velocity detector - Google Patents

A kind of haulage cable linear velocity detector Download PDF

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Publication number
CN106908620A
CN106908620A CN201710303421.5A CN201710303421A CN106908620A CN 106908620 A CN106908620 A CN 106908620A CN 201710303421 A CN201710303421 A CN 201710303421A CN 106908620 A CN106908620 A CN 106908620A
Authority
CN
China
Prior art keywords
magnetic
haulage cable
magnetic rollers
linear velocity
rollers
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.)
Pending
Application number
CN201710303421.5A
Other languages
Chinese (zh)
Inventor
陈维祥
刘利
张忠成
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.)
Chongqing Satisfactory Technology Development Co Ltd
Original Assignee
Chongqing Satisfactory Technology Development 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 Chongqing Satisfactory Technology Development Co Ltd filed Critical Chongqing Satisfactory Technology Development Co Ltd
Priority to CN201710303421.5A priority Critical patent/CN106908620A/en
Publication of CN106908620A publication Critical patent/CN106908620A/en
Pending legal-status Critical Current

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Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P3/00Measuring linear or angular speed; Measuring differences of linear or angular speeds
    • G01P3/42Devices characterised by the use of electric or magnetic means
    • G01P3/50Devices characterised by the use of electric or magnetic means for measuring linear speed

Abstract

A kind of haulage cable linear velocity detector, velocity sensor employs magnetic rollers formula wire rope displacement measurement apparatus, the structure of magnetic rollers has inlayed the annular magnet (2) that magnetic pole orientation is radial pattern for the inner circle of thin-walled roller shell (1), stronger magnetic attraction is formed on cylindrical, the cylindrical of magnetic rollers is close in the side of haulage cable during measurement, magnetic rollers are driven to rotate when lower mobile on a steel cord, magnetic rollers are rotated and drive rotary encoder (3) rotation, and detection data is exported through socket 6.This apparatus structure is simple, and accuracy of detection is higher.

Description

A kind of haulage cable linear velocity detector
Technical field
It is a kind of test in the mechanical devices such as elevator, crane more specifically the present invention relates to a kind of detecting instrument The special detector of haulage cable linear velocity in operation.
Background technology
In the mechanical devices such as elevator, crane haulage cable linear velocity in operation be important detection project it One, the detection method of prior art is as follows:
The rotating speed of drive motor is detected using revolution counter, is computed by rotating speed, speed reducing ratio, three numerical value of rope sheave diameters Obtain the operation linear velocity of haulage cable.
Using EC-2100 or EC-900 speedometer direct measurements, by the peripheral speed ring (being commonly called as the roller that tests the speed) of speedometer and fortune Haulage cable in row is lightly contacted, and can measure the linear velocity of steel wire rope.
State on the implementation in detecting, measurement apparatus need and tested mechanism's good contact, generally by the hand-held inspection of reviewer Instrumentation is surveyed, its operation level directly affects accuracy of detection.
Chinese invention patent CN201210163507X《Elevator wire rope displacement measuring device》, disclose Application Optics figure Image displacement detecting system realizes the scheme of contactless displacement measurement, and technical merit is advanced.At present remain problem be, test essence Degree is relatively inaccessible to ± 1% index, treats further perfect.
The content of the invention
The purpose of the present invention is to overcome the deficiencies in the prior art, there is provided a kind of easy to operate, measuring accuracy meets national mark A kind of haulage cable linear velocity detector of alignment request.
The technical scheme is that:
A kind of haulage cable linear velocity detector, including tachogenerator, connecting rod and fixator, its velocity sensor Using magnetic rollers formula wire rope displacement measurement apparatus, the Wheel structure of magnetic rollers is embedded in annular magnetic for thin-walled roller shell Iron, magnetic rollers it is cylindrical on form magnetic attraction;The cylindrical of magnetic rollers is close in haulage cable side during measurement, is being led Draw and driven when steel wire rope is moved up and down magnetic rollers rotation, the linear speed of the information transmission haulage cable rotated by magnetic rollers Degrees of data.
The haulage cable linear velocity detector, the magnetic pole orientation of its annular magnet is radial pattern, inner circle and outer ring Circularize the magnetic pole of magnet.Its magnetic rollers is connected with rotary encoder, and magnetic rollers are rotated and drive rotary encoder rotation, are led to Cross the information that rotary encoder output magnetic rollers are rotated.
The fixator of the haulage cable linear velocity detector is magnetic stand;Its connecting rod is helical spring type elasticity Connecting rod, or thin plate springs formula flexible connecting rod.
Present invention advantage compared with prior art is:
(1) using magnetic rollers formula wire rope displacement measurement apparatus, accuracy of detection can reach ± 0.5% to velocity sensor More than, better than the precision index that Application Optics picture displacement detecting system is obtained, and reliability is preferable with repeatability.
(2) magnetic rollers speed measuring device is used, the cylindrical of magnetic rollers produces magnetic attraction with the steel wire for contacting, on steel wire rope Magnetic rollers are driven to rotate when lower mobile, the measurement that can effectively reduce the steel wire rope sliding initiation cylindrical with magnetic rollers is missed Difference, improves accuracy of detection.
(3) Wheel structure of magnetic rollers is embedded in annular magnet for thin-walled roller shell, overcomes magnetic material and is difficult to essence The difficulty of processing, simplifies manufacturing process.
(4) magnetic pole orientation of annular magnet is radial pattern, the cylindrical magnetic pole that magnetic rollers are constituted with inner circle.With common axle To magnetizing, annular magnet is compared, and can make the cylindrical magnetic attraction enlarged relative of magnetic rollers, makes the side magnetic attraction of magnetic rollers It is relative to diminish.
Chinese invention patent CN201210163507X《Elevator wire rope displacement measuring device》, disclose applied magnetic and lead The technical scheme of ccd sensor is set up to wheel, its magnetic directive wheel is not belonging to speed measuring device, and magnetic directive wheel does not possess the work(that tests the speed Can, the purpose for setting magnetic directive wheel is different from technology essential factor with the present invention.
Brief description of the drawings
Fig. 1 is a kind of haulage cable linear velocity detector embodiment schematic diagram of the invention.
Fig. 2 is velocity sensor example structure schematic diagram.
Fig. 3 is the annular magnet schematic diagram that magnetic pole orientation is radial pattern.
Fig. 4 is flexible connecting rod sketch.
In figure:1. thin-walled roller shell, 2. annular magnet, 3. rotary encoder, 4. attaching nut, 5. sensor stand, 6 insert Seat, 7. haulage cable, 8. magnetic rollers, 9. connecting rod, 9-1. thin plate springs formula flexible connecting rods, 9-2. helical spring type bullets Property connecting rod, 10. fixator.
Specifically apply mode
The invention will be further described with reference to the accompanying drawings and examples:
As shown in figure 1, velocity sensor of the invention employs magnetic rollers formula wire rope displacement measurement apparatus, during measurement The cylindrical of magnetic rollers 8 is close in the side of haulage cable 7, and the cylindrical of magnetic rollers produces magnetic attraction with the steel wire for contacting, Magnetic rollers are driven to rotate when lower mobile on a steel cord, the cylindrical linear velocity of magnetic rollers can characterize what steel wire was moved up and down Linear velocity, the linear speed degrees of data of the information transmission haulage cable rotated by magnetic rollers.
Velocity sensor support 5 is connected to fixator 10 by connecting rod 9, needs selection to be fixed with adjustment during detection operation The fixed position of device 10, makes that magnetic rollers 8 are cylindrical to be close in the side of haulage cable 7, and wheel rim is parallel with steel wire rope.
Figure it is seen that the magnetic rollers of the present embodiment are made up of thin-walled roller shell 1 and annular magnet 2, annular magnet 2 are embedded in the internal diameter of thin-walled roller shell 1, and magnetic attraction is formed by annular magnet 2.Magnetic rollers are connected with rotary encoder 3, Magnetic rollers are rotated and drive rotary encoder 3 to rotate, and detection data is exported through socket 6.
The present embodiment has selected the annular magnet that magnetic pole orientation is radial pattern, as shown in figure 3, inner circle is S for N is extremely cylindrical Pole;Or the extremely cylindrical N poles of inner circle S.Compared with common axial charging annular magnet, the cylindrical magnetic force of magnetic rollers can be made Enlarged relative, makes the side magnetic picture of magnetic rollers to diminishing.In detection operation, the cylindrical and steel wire rope for contacting of magnetic rollers The magnetic attraction of generation is larger, can reduce the measurement error that the steel wire rope sliding cylindrical with magnetic rollers triggers, and improves detection essence Degree.
Rocked because haulage cable can be produced in operation, the connecting rod 9 of embodiment has selected helical spring type elasticity Connecting rod 9-2 or thin plate springs formula flexible connecting rod 9-1.Fixator 10 selects universal magnetic stand, can simplify and make in detection To the installation and fixation of instrument in industry.
The present invention is carried out above in association with drawings and embodiments launch description, the description does not have restricted, accompanying drawing Shown is also a kind of embodiment that instrument of the present invention is constituted, and technical scheme is not limited thereto.This area it is general Logical technical staff is it should be appreciated that in the case where design philosophy of the present invention is not departed from, implementation of the invention also has some Change or variation in details, these changes thus amplified out or variation are included within protection scope of the present invention.

Claims (6)

1. a kind of haulage cable linear velocity detector, including tachogenerator, connecting rod and fixator, it is characterized in that, it is described Velocity sensor uses magnetic rollers formula wire rope displacement measurement apparatus, and the Wheel structure of magnetic rollers is embedded in for thin-walled hub Annular magnet, magnetic rollers it is cylindrical on form magnetic attraction;The cylindrical of magnetic rollers is close in haulage cable side during measurement Face, drives magnetic rollers to rotate, the information transmission traction steel wire rotated by magnetic rollers when haulage cable is moved up and down The linear speed degrees of data of rope.
2. a kind of haulage cable linear velocity detector according to claim 1, it is characterized in that, the magnetic pole of the annular magnet Radial pattern is oriented to, inner circle circularizes the magnetic pole of magnet with outer ring.
3. a kind of haulage cable linear velocity detector according to claim 1 or claim 2, it is characterized in that, the magnetic rollers with Rotary encoder is connected, and magnetic rollers are rotated and drive rotary encoder rotation, and exporting magnetic rollers by rotary encoder rotates Information.
4. a kind of haulage cable linear velocity detector according to claim 1 or 2 or 3, it is characterized in that, the fixator is Magnetic stand.
5. a kind of haulage cable linear velocity detector according to claim 1 or 2 or 3, it is characterized in that, affiliated connecting rod is Helical spring type flexible connecting rod.
6. a kind of haulage cable linear velocity detector according to claim 1 or 2 or 3, it is characterized in that, affiliated connecting rod is Thin plate springs formula flexible connecting rod.
CN201710303421.5A 2017-05-03 2017-05-03 A kind of haulage cable linear velocity detector Pending CN106908620A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710303421.5A CN106908620A (en) 2017-05-03 2017-05-03 A kind of haulage cable linear velocity detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710303421.5A CN106908620A (en) 2017-05-03 2017-05-03 A kind of haulage cable linear velocity detector

Publications (1)

Publication Number Publication Date
CN106908620A true CN106908620A (en) 2017-06-30

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710303421.5A Pending CN106908620A (en) 2017-05-03 2017-05-03 A kind of haulage cable linear velocity detector

Country Status (1)

Country Link
CN (1) CN106908620A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108100793A (en) * 2017-12-12 2018-06-01 中国矿业大学 A kind of rope is the speed monitoring method of ropes in lifting system
CN110187141A (en) * 2019-04-24 2019-08-30 武汉船用机械有限责任公司 Speed measuring device and speed-measuring method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108100793A (en) * 2017-12-12 2018-06-01 中国矿业大学 A kind of rope is the speed monitoring method of ropes in lifting system
CN108100793B (en) * 2017-12-12 2019-09-03 中国矿业大学 A kind of rope is the speed monitoring method of ropes in lifting system
CN110187141A (en) * 2019-04-24 2019-08-30 武汉船用机械有限责任公司 Speed measuring device and speed-measuring method

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