CN106644459A - Sprocket fatigue test tester and test method - Google Patents
Sprocket fatigue test tester and test method Download PDFInfo
- Publication number
- CN106644459A CN106644459A CN201610851559.4A CN201610851559A CN106644459A CN 106644459 A CN106644459 A CN 106644459A CN 201610851559 A CN201610851559 A CN 201610851559A CN 106644459 A CN106644459 A CN 106644459A
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- sprocket
- sprocket wheel
- drive
- braking
- shaft
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/02—Gearings; Transmission mechanisms
- G01M13/021—Gearings
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- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a sprocket fatigue test tester and test method. The tester comprises a driving system and a braking system, wherein the driving system comprises an AC servo motor, an output shaft of the AC servo motor is connected with a planetary reducer input shaft, a planetary reducer output shaft is connected with one end of a driving shaft through a first shaft coupling, the other end of the driving shaft is connected with a driving sprocket three-jaw chuck, a driving sprocket is fixed on the driving sprocket three-jaw chuck, the braking system comprises a one-dimensional motion platform, the one-dimensional motion platform is provided with a magnetic powder brake, an output shaft of the magnetic powder brake is connected with one end of a torque sensor through a second shaft coupling, the other end of the torque sensor is connected with one end of a braking shaft through a third shaft coupling, the other end of the braking shaft is connected with a braking sprocket three-jaw chuck, and a braking sprocket is fixed on the braking sprocket three-jaw chuck. The tester is advantaged in that for certain work conditions, corresponding alternate loads are inputted to reflect actual sprocket fatigue performance.
Description
Technical field
The invention belongs to experimental test technical field, more particularly to a kind of sprocket wheel fatigue test test device and test side
Method.
Background technology
Chain conveyer is transmission device important in mechanized equipment, due to its nonelastic slip, average ratios accurately, transmission
The advantage such as power is big, overload capacity is strong is applied to most of weight equipments.But sprocket wheel high cost, easy to wear, transmission stability is poor,
Additional dynamic load, vibration, impact can be produced in operation simultaneously so that the birthday noodle of sprocket wheel are substantially reduced.In heavy-duty machinery device
If in occur sprocket wheel failure, can not only bring economic loss, can also cause safety problem.Instantly, the heavy industry such as colliery key portion
Sprocket wheel used by part is high due to its strength of materials, and impact flexibility is good, causes manufacturing cost high the features such as anti-corrosion, if because of local damage
And integral replacing, not only increase production cost, and do not meet the concept of " green manufacturing ".In the last few years, with increasing material manufacturing
The foundation of theory and the development of technology, the sprocket wheel that major part fails because of local damage is follow-up by laser melting coating or Bead weld repair
It is continuous to use, but current repair system is not perfect enough, lack be directed to repair after the fatigue behaviour evaluation of sprocket wheel, method of testing and
Test device.
At present, domestic and international fatigue test test device emerges in an endless stream, but predominantly indirect test method, by material
Fatigue property test is assessing the fatigue behaviour of parts.This test mode have ignored the architectural characteristic of parts, obtain
Data reliability is relatively low, it is impossible to reflect the stress under actual condition of parts, and the assessment life-span is inaccurate.
The content of the invention
Goal of the invention：For the fatigue properties for more truly reflecting sprocket wheel, the present invention provides a kind of fatigue test of sprocket wheel and surveys
Trial assembly is put and method of testing, according to sprocket wheel military service situation, sprocket wheel actual condition is simulated, to solve existing fatigue test device not
The problem of sprocket wheel fatigue properties can truly be reflected.
To achieve these goals, present invention employs following technical scheme：A kind of sprocket wheel fatigue test test device,
Including drive system and brakes, drive system includes AC servo motor, and AC servo motor output shaft connection planet subtracts
Fast device input shaft, planetary reduction gear output shaft connects drive shaft one end, drive shaft other end connection drive chain by shaft coupling one
Wheel scroll chuck, drive sprocket is fixed on drive sprocket scroll chuck, and brakes includes motion in one dimension platform, motion in one dimension
Platform is provided with magnetic powder brake, and magnetic powder brake output shaft connects torque sensor one end, torque sensing by shaft coupling two
The device other end connects brake axle one end by shaft coupling three, and brake axle other end connection braking sprocket wheel scroll chuck brakes sprocket wheel
It is fixed on braking sprocket wheel scroll chuck.
Further, the drive sprocket scroll chuck includes disk body, and parcel is provided with inside disk body, and parcel side is provided with spiral shell
Spin slot, parcel opposite side is provided with teeth groove, and conical gear is provided with disk body circumference, and conical gear is intermeshed with teeth groove, in disk
Body is uniformly distributed along the circumference three radial grooves near the side end face of helicla flute one, and in the embedded radial groove in claw one end, claw is provided with
Some arc-shaped slots, arc-shaped slot cooperates with helicla flute, and the claw other end is provided with axially position briquetting, bolt and axle
Coordinate to the hole screw thread in positioning briquetting, bolt end is provided with arc rubber blanket；The braking sprocket wheel scroll chuck and drive
Movable sprocket scroll chuck structure is identical.
Further, the motion in one dimension platform includes stepper motor, and stepper motor output shaft passes through shaft coupling with screw rod
Four are connected, and feed screw nut coordinates with screw rod, and mobile platform is connected by bolt with feed screw nut, the both sides symmetrical two of screw rod
Individual slide rail, installs two slide blocks on each slide rail, slide block is connected by bolt with brakes mobile platform.
Further, the drive shaft, brake axle middle part are provided with bearing block one.
Further, the screw rod end is provided with bearing block two.
According to the sprocket wheel fatigue test method of testing of above-mentioned test device, comprise the following steps：
A) by drive sprocket scroll chuck fixed drive sprocket wheel, by braking sprocket wheel scroll chuck braking sprocket wheel is fixed；
B) motion in one dimension platform is adjusted, chain is arranged on drive sprocket and braking sprocket wheel, motion in one dimension is adjusted again
Platform carries out chain tension.
C) according to actual condition input drive signal, AC servo motor drives drive sprocket to rotate, and brakes is by magnetic
Powder brake provides load, and drive system and brakes transmit torque by chain, and torque sensor real-time monitoring is simultaneously fed back
Torque information, torque sensor output signal and input signal are contrasted, adjustment.
Beneficial effect：The present invention proposes a kind of special fatigue test test device of sprocket wheel for the fatigue properties of sprocket wheel,
Different from conventional indirectly testing fatigue properties, this sprocket wheel fatigue test test device can be directed to a certain specific operation, defeated
Enter mutually fixed cycling alternating load to reflect the real fatigue behaviour of sprocket wheel, and scroll chuck is adaptable to different-diameter and difference
The sprocket wheel of thickness, while the adjustable centre of sprocket of motion in one dimension platform is away from function above is adapted it in the sprocket wheel of various models
Testing fatigue.
Description of the drawings
Fig. 1 is the structural representation of sprocket wheel fatigue test test device of the present invention；
Fig. 2 is the explosive view of drive system；
Fig. 3 is the explosive view of brakes；
Fig. 4 is the grade shaft side figure of drive sprocket scroll chuck；
Fig. 5 is the sectional view of drive sprocket scroll chuck；
Fig. 6 is the grade shaft side figure of motion in one dimension platform；
Fig. 7 is the upward view of motion in one dimension platform；
In figure：1- testboards, 2- drive sprockets, 3- bearing blocks one, 4- shaft couplings one, 5- planetary reduction gears, 6- exchanges are watched
Take motor, 7- magnetic powder brakes, 8- shaft couplings two, 9- torque sensors, 10- shaft couplings three, 11- motion in one dimension platforms, 1101-
Mobile platform, 1102- slide rails, 1103- shaft couplings four, 1104- stepper motors, 1105- screw rods, 1106- bearing blocks two, 1107-
Feed screw nut, 1108- slide blocks, 12- drive sprocket scroll chucks, 1201- axially position briquettings, 1202- bolts, 1203-
Arc rubber blanket, 1204- claws, 1205- disk bodies, 1206- parcels, 1207- conical gears, 1208- helicla flutes, 1209- teeth groove,
1210- arc-shaped slots, 13- braking sprocket wheels, 14- braking sprocket wheel scroll chucks.
Specific embodiment：
The present invention is done below in conjunction with the accompanying drawings further is explained.
As shown in Figures 1 to 3, a kind of sprocket wheel fatigue test test device of the invention, including the driving on testboard 1 is installed
System and brakes.Drive system includes AC servo motor 6, and the output shaft of AC servo motor 6 connection planetary reduction gear 5 is defeated
Enter axle, the output shaft of planetary reduction gear 5 connects drive shaft one end by shaft coupling 1, and drive shaft middle part is provided with bearing block 1, drives
Moving axis other end connection drive sprocket scroll chuck 12, drive sprocket 2 is fixed on drive sprocket scroll chuck 12.Brakes
Including motion in one dimension platform 11, motion in one dimension platform 11 is provided with magnetic powder brake 7, and the output shaft of magnetic powder brake 7 passes through shaft coupling
The connection torque sensor 9 of device 28 one end, the other end of torque sensor 9 connects brake axle one end, brake axle by shaft coupling 3 10
Middle part is provided with bearing block 1, and brake axle other end connection braking sprocket wheel scroll chuck 14 brakes sprocket wheel 13 and is fixed on braking sprocket wheel
On scroll chuck 14.
As shown in Figures 4 and 5, the drive sprocket scroll chuck 12 includes disk body 1205, and inside disk body 1205 parcel is provided with
1206, the side of parcel 1206 is provided with helicla flute 1208, and the opposite side of parcel 1206 is provided with teeth groove 1209, sets on the circumference of disk body 1205
There is conical gear 1207, conical gear 1207 is intermeshed with teeth groove 1209, in disk body 1205 near the side of helicla flute 1,208 1
Face is uniformly distributed along the circumference three radial grooves, and in the embedded radial groove in the one end of claw 1204, claw 1204 is provided with some deep-slotted chip breakers
Mouth 1210, arc-shaped slot 1210 cooperates with helicla flute 1208, and the other end of claw 1204 is provided with axially position briquetting 1201, fixed
Position bolt 1202 coordinates with the hole screw thread on axially position briquetting 1201, and the end of bolt 1202 is provided with arc rubber blanket
1203.The braking sprocket wheel scroll chuck 14 is identical with the structure of drive sprocket scroll chuck 12.
As shown in Figures 6 and 7, the motion in one dimension platform 11 include stepper motor 1104, the output shaft of stepper motor 1104 with
Screw rod 1105 is connected by shaft coupling 4 1103, and the end of the screw rod 1105 is provided with bearing block 2 1106.Feed screw nut 1107 with
Screw rod 1105 coordinates, and mobile platform 1101 is connected by bolt with feed screw nut 1107, the both sides symmetrical two of screw rod 1105
Individual slide rail 1102, installs two slide blocks 1108 on each slide rail 1102, slide block 1108 is by bolt and brakes mobile platform
1101 connections.
Described sprocket wheel fatigue test test device is different from conventional indirectly testing fatigue method, this sprocket wheel fatigue examination
Test test device to be input into specific cycling alternating load to reflect the real fatigue behaviour of sprocket wheel, and this for a certain operating mode
The scroll chuck of fatigue test test device is adaptable to the sprocket wheel of different-diameter and different-thickness, while motion in one dimension platform can
Centre of sprocket is adjusted away from function above adapts it to the sprocket wheel testing fatigue in various models.
According to the sprocket wheel fatigue test method of testing of above-mentioned test device, comprise the following steps：
A) by the fixed drive sprocket wheel 2 of drive sprocket scroll chuck 12, by braking sprocket wheel scroll chuck 14 braking is fixed
Sprocket wheel 13；
B) motion in one dimension platform 11 is adjusted, chain is arranged on drive sprocket 2 and braking sprocket wheel 13, adjusted again one-dimensional
Motion platform 11 carries out chain tension.
C) according to actual condition input drive signal, AC servo motor 6 drives drive sprocket to rotate, and brakes is by magnetic
Powder brake 7 provides load, and drive system and brakes transmit torque by chain, and the real-time monitoring of torque sensor 9 is simultaneously anti-
Feedback torque information, torque sensor output signal and input signal are contrasted, and are adjusted.
In step a), manually rotating cone gear 1207, conical gear 1207 drives parcel 1206 to rotate, parcel
1206 drive the radially slide of claw 1204 so that claw props up the inner ring of drive sprocket 2.Axially position briquetting 1201 is distinguished
It is fixed on 1204 on three claws, screwing the bolt 1202 on axially position briquetting 1201 makes arc rubber blanket 1203 and drive
Movable sprocket 2 is compressed, for the axially position of drive sprocket 2.The fixed form of braking sprocket wheel 13 is identical with drive sprocket 2.
In step b), stepper motor 1104 drives screw rod 1105 to rotate and causes the translation of feed screw nut 1107 or so after driving,
The left and right adjustment of brakes mobile platform 1101 is realized, two slide blocks 1108 are moved with mobile platform 1101 along slide rail 1102,
To reduce the frictional resistance during translation of left and right, reduce stepper motor 1104 and load.When chain is installed, can be by driving motion in one dimension
Platform 11 improves installation effectiveness simplifying installation process.Meanwhile, can relax when chain reaches a fixed load, easily there is chain
Bar is released, can be adjusted by Driving Stepping Motor 1104 centre of sprocket away from, realize the tensioning of chain, be normally carried out test.
In step c), when being tested, described chain wheel drive system is driven, Jing Guohang by AC servo motor 6
After the reduction of speed of star decelerator 5, drive sprocket scroll chuck 12 is transmitted torque to by shaft coupling 1, finally drive drive sprocket 2
Rotate.Described brakes, by the alternate load signal input under a certain specific operation to the control end of magnetic powder brake 7, makes
The output cycling alternating load of magnetic powder brake 7 is obtained, between magnetic powder brake 7 and braking sprocket wheel scroll chuck 14 torque sensor is provided with
9, the real-time monitoring of torque sensor 9 and feedback torque information, control end is passed by the contrast input signal of magnetic powder brake 7 with moment of torsion
The feedback information of sensor 9, the output loads of real time calibration magnetic powder brake 7 are finally transferred torque on braking sprocket wheel 13, are protected
Card sprocket wheel is subject to and actual condition identical alternate load.
The above is only the preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, under the premise without departing from the principles of the invention, some improvements and modifications can also be made, these improvements and modifications also should
It is considered as protection scope of the present invention.
Claims (6)
1. a kind of sprocket wheel fatigue test test device, it is characterised in that：Including drive system and brakes, drive system includes
AC servo motor (6), AC servo motor (6) output shaft connection planetary reduction gear (5) input shaft, planetary reduction gear (5) is defeated
Shaft connects drive shaft one end, drive shaft other end connection drive sprocket scroll chuck (12), drive chain by shaft coupling one (4)
Wheel (2) is fixed on drive sprocket scroll chuck (12), and brakes includes motion in one dimension platform (11), motion in one dimension platform
(11) magnetic powder brake (7) is provided with, magnetic powder brake (7) output shaft connects torque sensor (9) by shaft coupling two (8)
End, torque sensor (9) other end connects brake axle one end, brake axle other end connection braking sprocket wheel by shaft coupling three (10)
Scroll chuck (14), braking sprocket wheel (13) is fixed in braking sprocket wheel scroll chuck (14).
2. a kind of sprocket wheel fatigue test test device according to claim 1, it is characterised in that：The drive sprocket three-jaw
Chuck (12) includes disk body (1205), and inside disk body (1205) parcel (1206) is provided with, and parcel (1206) side is provided with helicla flute
(1208), parcel (1206) opposite side is provided with teeth groove (1209), and conical gear (1207) is provided with disk body (1205) circumference, circle
Bevel gear (1207) is intermeshed with teeth groove (1209), circumferentially equal near the side end face of helicla flute (1208) in disk body (1205)
Three radial grooves of cloth, in the embedded radial groove in claw (1204) one end, claw (1204) is provided with some arc-shaped slots
(1210), arc-shaped slot (1210) cooperates with helicla flute (1208), and claw (1204) other end is provided with axially position briquetting
(1201), bolt (1202) coordinates with the hole screw thread on axially position briquetting (1201), and bolt (1202) end sets
There is arc rubber blanket (1203)；Braking sprocket wheel scroll chuck (14) is identical with drive sprocket scroll chuck (12) structure.
3. a kind of sprocket wheel fatigue test test device according to claim 1 and 2, it is characterised in that：The motion in one dimension
Platform (11) includes stepper motor (1104), and stepper motor (1104) output shaft is with screw rod (1105) by shaft coupling four (1103)
It is connected, feed screw nut (1107) coordinates with screw rod (1105), mobile platform (1101) is connected by bolt and feed screw nut (1107)
Connect, symmetrical two slide rails (1102) in both sides of screw rod (1105), two slide blocks (1108) be installed on each slide rail (1102),
Slide block (1108) is connected by bolt with brakes mobile platform (1101).
4. a kind of sprocket wheel fatigue test test device according to claim 3, it is characterised in that：The drive shaft, braking
Axle middle part is provided with bearing block one (3).
5. a kind of sprocket wheel fatigue test test device according to claim 3, it is characterised in that：Screw rod (1105) end
Portion is provided with bearing block two (1106).
6. according to right 3 test device sprocket wheel fatigue test method of testing, it is characterised in that：Comprise the following steps：
A) by drive sprocket scroll chuck (12) fixed drive sprocket wheel (2), by braking the fixed system of sprocket wheel scroll chuck (14)
Movable sprocket (13)；
B) motion in one dimension platform (11) is adjusted, chain is arranged on drive sprocket (2) and braking sprocket wheel (13), one is adjusted again
Maintenance and operation moving platform (11) carries out chain tension.
C) according to actual condition input drive signal, AC servo motor (6) drives drive sprocket to rotate, and brakes is by magnetic
Brake (7) provides load, and drive system and brakes transmit torque by chain, and torque sensor (9) real-time monitoring is simultaneously
Feedback torque information, torque sensor output signal and input signal are contrasted, adjustment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610851559.4A CN106644459B (en) | 2016-09-26 | 2016-09-26 | A kind of sprocket wheel fatigue test test device and test method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610851559.4A CN106644459B (en) | 2016-09-26 | 2016-09-26 | A kind of sprocket wheel fatigue test test device and test method |
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| CN106644459A true CN106644459A (en) | 2017-05-10 |
| CN106644459B CN106644459B (en) | 2019-03-26 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107219074A (en) * | 2017-06-06 | 2017-09-29 | 北京航空航天大学 | Space high pulling torque rope drive drive system rigidity test equipment |
| CN107520575A (en) * | 2017-10-11 | 2017-12-29 | 浙江宁远塔桅制造有限公司 | A kind of assemblage platform |
| CN107941637A (en) * | 2017-12-05 | 2018-04-20 | 广东新宝精密制造股份有限公司 | A kind of torsional spring fatigue experimental device |
| CN107962490A (en) * | 2017-11-30 | 2018-04-27 | 大连理工大学 | The burnishing device and method of the discontinuous inside coating of composite material big L/D ratio tubular |
| CN110641159A (en) * | 2019-08-30 | 2020-01-03 | 南京理工军邦特种智能装备研究院有限公司 | Automatic marking detection robot for brake disc and marking and detection method thereof |
| CN116952567A (en) * | 2023-08-24 | 2023-10-27 | 西南交通大学 | Fatigue test device and method for power closed gear rack |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107219074A (en) * | 2017-06-06 | 2017-09-29 | 北京航空航天大学 | Space high pulling torque rope drive drive system rigidity test equipment |
| CN107219074B (en) * | 2017-06-06 | 2019-12-10 | 北京航空航天大学 | Transmission rigidity testing equipment for space large-torque rope transmission system |
| CN107520575A (en) * | 2017-10-11 | 2017-12-29 | 浙江宁远塔桅制造有限公司 | A kind of assemblage platform |
| CN107962490A (en) * | 2017-11-30 | 2018-04-27 | 大连理工大学 | The burnishing device and method of the discontinuous inside coating of composite material big L/D ratio tubular |
| CN107962490B (en) * | 2017-11-30 | 2020-03-20 | 大连理工大学 | Polishing device and method for composite material large-length-diameter-ratio cylindrical discontinuous inner wall coating |
| CN107941637A (en) * | 2017-12-05 | 2018-04-20 | 广东新宝精密制造股份有限公司 | A kind of torsional spring fatigue experimental device |
| CN110641159A (en) * | 2019-08-30 | 2020-01-03 | 南京理工军邦特种智能装备研究院有限公司 | Automatic marking detection robot for brake disc and marking and detection method thereof |
| CN116952567A (en) * | 2023-08-24 | 2023-10-27 | 西南交通大学 | Fatigue test device and method for power closed gear rack |
| CN116952567B (en) * | 2023-08-24 | 2024-05-07 | 西南交通大学 | Fatigue test device and method for power closed gear rack |
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