CN106644459B - A kind of sprocket wheel fatigue test test device and test method - Google Patents
A kind of sprocket wheel fatigue test test device and test method Download PDFInfo
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- CN106644459B CN106644459B CN201610851559.4A CN201610851559A CN106644459B CN 106644459 B CN106644459 B CN 106644459B CN 201610851559 A CN201610851559 A CN 201610851559A CN 106644459 B CN106644459 B CN 106644459B
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- 238000012360 testing method Methods 0.000 title claims abstract description 33
- 238000009661 fatigue test Methods 0.000 title claims abstract description 22
- 238000010998 test method Methods 0.000 title claims abstract description 9
- 230000008878 coupling Effects 0.000 claims abstract description 20
- 238000010168 coupling process Methods 0.000 claims abstract description 20
- 238000005859 coupling reaction Methods 0.000 claims abstract description 20
- 239000006247 magnetic powder Substances 0.000 claims abstract description 17
- 230000009467 reduction Effects 0.000 claims abstract description 9
- 210000000078 claw Anatomy 0.000 claims description 15
- 210000003781 tooth socket Anatomy 0.000 claims description 7
- 238000012544 monitoring process Methods 0.000 claims description 4
- 238000012423 maintenance Methods 0.000 claims 1
- 230000001351 cycling effect Effects 0.000 abstract description 4
- 230000006399 behavior Effects 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008439 repair process Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
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- 238000002844 melting Methods 0.000 description 1
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- 235000012149 noodles Nutrition 0.000 description 1
- 238000013519 translation Methods 0.000 description 1
Classifications
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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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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The invention discloses a kind of sprocket wheel fatigue test test device and test methods, the test device includes drive system and braking system, drive system includes AC servo motor, AC servo motor exports axis connection input shaft of planetary reduction gear, planetary reduction gear output shaft connects drive shaft one end by shaft coupling one, the drive shaft other end connects drive sprocket scroll chuck, drive sprocket is fixed on drive sprocket scroll chuck, braking system includes motion in one dimension platform, motion in one dimension platform is equipped with magnetic powder brake, magnetic powder brake output shaft connects torque sensor one end by shaft coupling two, the torque sensor other end connects brake axle one end by shaft coupling three, brake axle other end connection braking sprocket wheel scroll chuck, braking sprocket wheel is fixed on braking sprocket wheel scroll chuck.Sprocket wheel fatigue test test device of the present invention can be directed to a certain specific operation, input mutually fixed cycling alternating load, the true fatigue behaviour of Lai Fanying sprocket wheel.
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 sides
Method.
Background technique
Chain conveyer is transmission device important in mechanized equipment, and due to its nonelastic sliding, average ratios are accurate, transmit
The advantages such as power is big, overload capacity is strong are suitable for most of weight equipments.But sprocket wheel is at high cost, easy to wear, and transmission stability is poor,
Additional dynamic load, vibration, impact can be generated in operation simultaneously, so that the birthday noodle of sprocket wheel substantially reduce.In heavy-duty machinery device
Occur sprocket wheel failure in if, can not only bring economic loss, can also cause safety problem.Instantly, the heavy industry key such as coal mine portion
The features such as sprocket wheel used in part due to its strength of materials height, impact flexibility is good, anti-corrosion makes manufacturing cost high, if because of local damage
And integral replacing, not only increase production cost, but also do not meet the concept of " green manufacturing ".In recent years, with increasing material manufacturing
The development of theoretical foundation and technology, most of sprocket wheel to fail by local damage are subsequent by laser melting coating or Bead weld repair
It is continuous to use, but current repair system is incomplete, lack be directed to repair after the fatigue behaviour evaluation of sprocket wheel, test method and
Test device.
Currently, fatigue test test device emerges one after another both at home and abroad, but predominantly indirect test method, by material
Fatigue property test assesses the fatigue behaviours of components.This test mode has ignored the architectural characteristic of components, obtains
Data reliability is lower, cannot reflect the stress under actual condition of components, assessment service life inaccuracy.
Summary of the invention
Goal of the invention: in order to which more really the fatigue properties of reflection sprocket wheel, the fatigue test that the present invention provides a kind of sprocket wheel are surveyed
Trial assembly is set and test method, according to sprocket wheel military service situation, sprocket wheel actual condition is simulated, to solve existing fatigue test device not
The problem of capable of really reflecting sprocket wheel fatigue properties.
To achieve the goals above, present invention employs the following technical solutions: a kind of sprocket wheel fatigue test test device,
Including drive system and braking system, drive system includes AC servo motor, and AC servo motor output axis connection planet subtracts
Fast device input shaft, planetary reduction gear output shaft connect drive shaft one end by shaft coupling one, and the drive shaft other end connects drive chain
Scroll chuck is taken turns, drive sprocket is fixed on drive sprocket scroll chuck, and braking system includes motion in one dimension platform, motion in one dimension
Platform is equipped 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 equipped with inside disk body, and parcel side is equipped with spiral shell
Spin slot, the parcel other side are equipped with tooth socket, conical gear are equipped on disk body circumference, conical gear and tooth socket are intermeshed, in disk
Body is uniformly distributed along the circumference three radial grooves close to one side end face of helicla flute, and claw one end is embedded in radial groove, and claw is equipped with
Several arc-shaped slots, arc-shaped slot and helicla flute cooperate, and the claw other end is equipped with axially position briquetting, positioning bolt and axis
Hole in positioning briquetting is threadedly engaged, and positioning bolt end is equipped with arc rubber pad；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 and screw rod pass through shaft coupling
Four are connected, and feed screw nut and screw rod cooperate, and mobile platform is connect by bolt with feed screw nut, the two sides of screw rod symmetrical two
A sliding rail, two sliding blocks are installed on each sliding rail, and sliding block is connect by bolt with braking system mobile platform.
Further, the drive shaft, brake axle middle part are equipped with bearing block one.
Further, the screw rod end is equipped with bearing block two.
According to the sprocket wheel fatigue test test method of above-mentioned test device, comprising the following steps:
A) by the fixed drive sprocket of drive sprocket scroll chuck, pass through the fixed braking sprocket wheel of braking sprocket wheel scroll chuck；
B) motion in one dimension platform is adjusted, chain is mounted on drive sprocket and braking sprocket wheel, adjusts motion in one dimension again
Platform carries out chain tension.
C) according to actual condition input drive signal, AC servo motor drives drive sprocket rotation, and braking system is by magnetic
Powder brake provides load, drive system and braking system and transmits torque by chain, and torque sensor real-time monitoring is simultaneously fed back
Torque information compares torque sensor output signal with input signal, adjustment.
The utility model has the advantages that the present invention is directed to the fatigue properties of sprocket wheel, a kind of dedicated fatigue test test device of sprocket wheel is proposed,
Different from previous 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, the true fatigue behaviour of Lai Fanying sprocket wheel, and scroll chuck is adaptable to different-diameter and difference
The sprocket wheel of thickness, while centre of sprocket is adjusted away from above functions adapts it to the sprocket wheel of various models in motion in one dimension platform
Testing fatigue.
Detailed description of the invention
Fig. 1 is the structural schematic diagram 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 braking system；
Fig. 4 is the equal shaft side figures of drive sprocket scroll chuck；
Fig. 5 is the cross-sectional view of drive sprocket scroll chuck；
Fig. 6 is the equal shaft side figures of motion in one dimension platform；
Fig. 7 is the bottom view of motion in one dimension platform；
In figure: 1- testboard, 2- drive sprocket, 3- bearing block one, 4- shaft coupling one, 5- planetary reduction gear, 6- exchange are watched
Take motor, 7- magnetic powder brake, 8- shaft coupling two, 9- torque sensor, 10- shaft coupling three, 11- motion in one dimension platform, 1101-
Mobile platform, 1102- sliding rail, 1103- shaft coupling four, 1104- stepper motor, 1105- screw rod, 1106- bearing block two, 1107-
Feed screw nut, 1108- sliding block, 12- drive sprocket scroll chuck, 1201- axially position briquetting, 1202- positioning bolt, 1203-
Arc rubber pad, 1204- claw, 1205- disk body, 1206- parcel, 1207- conical gear, 1208- helicla flute, 1209- tooth socket,
1210- arc-shaped slot, 13- brake sprocket wheel, and 14- brakes sprocket wheel scroll chuck.
Specific embodiment:
Further explanation is done to the present invention with reference to the accompanying drawing.
As shown in Figures 1 to 3, a kind of sprocket wheel fatigue test test device of the invention, including the driving on installation testboard 1
System and braking system.Drive system includes AC servo motor 6, and it is defeated that AC servo motor 6 exports axis connection planetary reduction gear 5
Enter axis, 5 output shaft of planetary reduction gear connects drive shaft one end by shaft coupling 1, is equipped with bearing block 1 in the middle part of drive shaft, drives
The moving axis other end connects drive sprocket scroll chuck 12, and drive sprocket 2 is fixed on drive sprocket scroll chuck 12.Braking system
Including motion in one dimension platform 11, motion in one dimension platform 11 is equipped with magnetic powder brake 7, and 7 output shaft of magnetic powder brake passes through shaft coupling
Device 28 connects 9 one end of torque sensor, and 9 other end of torque sensor connects brake axle one end, brake axle by shaft coupling 3 10
Middle part is equipped with bearing block 1, brake axle other end connection braking sprocket wheel scroll chuck 14, and braking sprocket wheel 13 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, is equipped with parcel inside disk body 1205
1206,1206 side of parcel is equipped with helicla flute 1208, and 1206 other side of parcel is equipped with tooth socket 1209, sets on 1205 circumference of disk body
There is conical gear 1207, conical gear 1207 and tooth socket 1209 are intermeshed, in disk body 1205 close to 1,208 1 side of helicla flute
Face is uniformly distributed along the circumference three radial grooves, and 1204 one end of claw is embedded in radial groove, and claw 1204 is equipped with several arc grooves
Mouth 1210, arc-shaped slot 1210 and helicla flute 1208 cooperate, and 1204 other end of claw is equipped with axially position briquetting 1201, fixed
Position bolt 1202 is threadedly engaged with the hole on axially position briquetting 1201, and 1202 end of positioning bolt is equipped with arc rubber pad
1203.The braking sprocket wheel scroll chuck 14 is identical as 12 structure of drive sprocket scroll chuck.
As shown in Figures 6 and 7, the motion in one dimension platform 11 include stepper motor 1104,1104 output shaft of stepper motor with
Screw rod 1105 is connected by shaft coupling 4 1103, and 1105 end of screw rod is equipped with bearing block 2 1106.Feed screw nut 1107 with
Screw rod 1105 cooperates, and mobile platform 1101 is connect by bolt with feed screw nut 1107, the two sides of screw rod 1105 symmetrical two
A sliding rail 1102, two sliding blocks 1108 are installed on each sliding rail 1102, and sliding block 1108 passes through bolt and braking system mobile platform
1101 connections.
The sprocket wheel fatigue test test device is different from previous indirectly testing fatigue method, this sprocket wheel fatigue examination
Specific cycling alternating load can be inputted for a certain operating condition by testing test device, the true fatigue behaviour of Lai Fanying sprocket wheel, and this
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 above functions adapts it to the sprocket wheel testing fatigue of various models.
According to the sprocket wheel fatigue test test method of above-mentioned test device, comprising the following steps:
A) by the fixed drive sprocket 2 of drive sprocket scroll chuck 12, pass through the fixed braking of braking sprocket wheel scroll chuck 14
Sprocket wheel 13；
B) motion in one dimension platform 11 is adjusted, chain is mounted on drive sprocket 2 and braking sprocket wheel 13, is 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 rotation, and braking system is by magnetic
Powder brake 7 provides load, drive system and braking system and transmits torque by chain, and 9 real-time monitoring of torque sensor is simultaneously anti-
Torque information is presented, torque sensor output signal is compared with input signal, is adjusted.
In step a), by can be manually rotated conical gear 1207, conical gear 1207 drives parcel 1206 to rotate, parcel
1206 drive claw 1204, and radially sliding slot slides, so that claw props up 2 inner ring of drive sprocket.Axially position briquetting 1201 is distinguished
Being fixed on the positioning bolt 1202 screwed on axially position briquetting 1,201 1204 on three claws makes arc rubber pad 1203 and drives
Movable sprocket 2 compresses, the axially position for drive sprocket 2.The fixed form for braking sprocket wheel 13 is identical as drive sprocket 2.
In step b), stepper motor 1104 drive after drive screw rod 1105 rotate so that feed screw nut 1107 or so translate,
Realize the left and right adjustment of braking system mobile platform 1101, two sliding blocks 1108 are moved with mobile platform 1101 along sliding rail 1102,
To reduce the frictional resistance when translation of left and right, reduces stepper motor 1104 and load.It, can be by driving motion in one dimension when chain is installed
Platform 11 simplifies installation process, improves installation effectiveness.Meanwhile can relax when chain reaches a fixed load, Yi Fasheng chain
Item loosens, and centre of sprocket can be adjusted by driving stepper motor 1104 away from realization the tensioning of the chain being normally carried out test.
In step c), when being tested, the chain wheel drive system is driven by AC servo motor 6, through space
After 5 reduction of speed of star retarder, drive sprocket scroll chuck 12 is transmitted torque to by shaft coupling 1, finally drives drive sprocket 2
Rotation.Alternating load signal under a certain specific operation is input to 7 control terminal of magnetic powder brake, made by the braking system
It obtains magnetic powder brake 7 and exports cycling alternating load, be equipped with torque sensor between magnetic powder brake 7 and braking sprocket wheel scroll chuck 14
9, simultaneously feedback torque information, control terminal are passed 9 real-time monitoring of torque sensor by comparison 7 input signal of magnetic powder brake and torque
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
Sprocket wheel is demonstrate,proved by alternating load identical with actual condition.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of sprocket wheel fatigue test test device, it is characterised in that: including drive system and braking system, drive system includes
AC servo motor (6), AC servo motor (6) export axis connection planetary reduction gear (5) input shaft, and planetary reduction gear (5) is defeated
Shaft connects drive shaft one end by shaft coupling one (4), and the drive shaft other end connects drive sprocket scroll chuck (12), drive chain
Wheel (2) is fixed on drive sprocket scroll chuck (12), and braking system includes motion in one dimension platform (11), motion in one dimension platform
(11) magnetic powder brake (7) are equipped with, magnetic powder brake (7) output shaft connects torque sensor (9) one by shaft coupling two (8)
End, torque sensor (9) other end connect brake axle one end, brake axle other end connection braking sprocket wheel by shaft coupling three (10)
Scroll chuck (14), braking sprocket wheel (13) are fixed in braking sprocket wheel scroll chuck (14)；
The drive sprocket scroll chuck (12) includes disk body (1205), is equipped with parcel (1206) inside disk body (1205), parcel
(1206) side is equipped with helicla flute (1208), and parcel (1206) other side is equipped with tooth socket (1209), on disk body (1205) circumference
Equipped with conical gear (1207), conical gear (1207) and tooth socket (1209) are intermeshed, in disk body (1205) close to helicla flute
(1208) one side end faces are uniformly distributed along the circumference three radial grooves, and claw (1204) one end is embedded in radial groove, claw (1204)
It is equipped with several arc-shaped slots (1210), arc-shaped slot (1210) and helicla flute (1208) cooperate, and claw (1204) is another
End is equipped with axially position briquetting (1201), and positioning bolt (1202) is threadedly engaged with the hole on axially position briquetting (1201), fixed
Position bolt (1202) end is equipped with arc rubber pad (1203), the braking sprocket wheel scroll chuck (14) and drive sprocket three-jaw card
Disk (12) structure is identical；
By can be manually rotated conical gear (1207), conical gear (1207) drives parcel (1206) rotation, parcel (1206) band
Dynamic claw (1204) radially sliding slot slides, so that claw props up drive sprocket (2) inner ring, screws axially position briquetting (1201)
On positioning bolt (1202) compress arc rubber pad (1203) and drive sprocket (2), the axial direction for drive sprocket (2) is fixed
Position, the fixed form for braking sprocket wheel (13) are identical as drive sprocket (2).
2. a kind of sprocket wheel fatigue test test device according to claim 1, it is characterised in that: the motion in one dimension platform
It (11) include stepper motor (1104), stepper motor (1104) output shaft passes through shaft coupling four (1103) phase with screw rod (1105)
Even, feed screw nut (1107) and screw rod (1105) cooperate, and mobile platform (1101) is connect by bolt with feed screw nut (1107),
Symmetrical two sliding rails (1102) in the two sides of screw rod (1105) install two sliding blocks (1108) on each sliding rail (1102), sliding
Block (1108) is connect by bolt with braking system mobile platform (1101).
3. a kind of sprocket wheel fatigue test test device according to claim 2, it is characterised in that: the drive shaft, braking
Bearing block one (3) is equipped in the middle part of axis.
4. a kind of sprocket wheel fatigue test test device according to claim 2, it is characterised in that: screw rod (1105) end
Portion is equipped with bearing block two (1106).
5. the sprocket wheel fatigue test test method of test device according to claim 2, it is characterised in that: including following step
It is rapid:
A) fixed drive sprocket (2) by drive sprocket scroll chuck (12), pass through the fixed system of braking sprocket wheel scroll chuck (14)
Movable sprocket (13)；
B) motion in one dimension platform (11) are adjusted, chain is mounted on drive sprocket (2) and braking sprocket wheel (13), adjusts one 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 rotation, and braking system is by magnetic powder
Brake (7) provides load, drive system and braking system and transmits torque by chain, and torque sensor (9) real-time monitoring is simultaneously
Feedback torque information compares torque sensor output signal with input signal, adjustment.
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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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| 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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| CN106644459B true CN106644459B (en) | 2019-03-26 |
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| CN106644459A (en) | 2017-05-10 |
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