CN109443757A - A kind of RV retarder life cycle management precision degradation testing device - Google Patents

A kind of RV retarder life cycle management precision degradation testing device Download PDF

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Publication number
CN109443757A
CN109443757A CN201811636137.0A CN201811636137A CN109443757A CN 109443757 A CN109443757 A CN 109443757A CN 201811636137 A CN201811636137 A CN 201811636137A CN 109443757 A CN109443757 A CN 109443757A
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CN
China
Prior art keywords
retarder
life cycle
cycle management
testing device
plate
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
CN201811636137.0A
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Chinese (zh)
Inventor
张靖
韩益南
***
朱忠刚
胡俊章
严亮
郭剑禹
谢发祥
朱晴旺
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.)
Zhejiang Environmental Robot Joint Technology Co ltd
Original Assignee
ZHEJIANG SHUANGHUAN DRIVELINE 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 ZHEJIANG SHUANGHUAN DRIVELINE CO Ltd filed Critical ZHEJIANG SHUANGHUAN DRIVELINE CO Ltd
Priority to CN201811636137.0A priority Critical patent/CN109443757A/en
Publication of CN109443757A publication Critical patent/CN109443757A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • G01M13/02Gearings; Transmission mechanisms
    • G01M13/021Gearings
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01MTESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M13/00Testing of machine parts
    • G01M13/02Gearings; Transmission mechanisms
    • G01M13/025Test-benches with rotational drive means and loading means; Load or drive simulation

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Abstract

The invention discloses a kind of RV retarder life cycle management precision degradation testing devices.The slide plate driven by driving mechanism is set on plate;It is fixed with mounting bracket on slide plate, and is fixed with servo motor and RV retarder to be tested in mounting bracket, the output end of servo motor is connect with the input terminal of RV retarder;It is further fixed on bearing bracket on plate, there are left risers and right risers on bearing bracket, bearing assembly and encoder are installed in left risers, output flange is set to left risers and is capable of fixing transmission close to RV retarder side, and after the two contact;Loading axis is equipped with by bearing assembly in right risers, output flange axis is connect by shaft coupling with loading axis one end after passing through bearing assembly and encoder inner hole, and the loading axis other end is connected with the load bar with counterweight.The present invention can carry out real-time tracking test to retarder driving error in the fatigue life test complete period, can also test the driving error under retarder receiving varying load condition.

Description

A kind of RV retarder life cycle management precision degradation testing device
Technical field
The present invention relates to a kind of test devices, more particularly to a kind of move back for testing RV retarder life cycle management precision The test device of change.
Background technique
RV retarder has small in size, light-weight, gear range as most important joint of robot retarder Greatly, the series of advantages such as bearing capacity height, high, the high-efficient, stable drive of precision.The quality of its transmission performance directly affects industry The overall performance of robot.
With the continuous improvement of industrial production automation and precise treatment degree, the demand of industrial robot is quicklyd increase, It is just more important to develop and develop high performance retarder.Nothing is concentrated on for the equipment of RV retarder drive error testing at present It carries, the single measurement of even load acquisition driving error, is still directed in RV retarder fatigue life test process without a kind of to transmission The test equipment of error progress real-time and accurate measurement.
Summary of the invention
The present invention is provided and is subtracted during a kind of variable load fatigue test to RV for certain or certain defects in the prior art The test macro that fast device life cycle management precision degenerate case is studied.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals:
RV retarder life cycle management precision degradation testing device, it includes plate, be provided on plate guide rail and with Guide rail cooperation constitutes the sliding block of sliding pair, and sliding block is fixedly arranged above horizontal slide plate;Slide plate side, which is fixed with, drives slide plate edge to lead The driving mechanism of rail direction sliding;Mounting bracket is fixed on the slide plate, and be fixed in mounting bracket servo motor and The output end of RV retarder to be tested, servo motor is connect with the input terminal of RV retarder, the glide direction of the sliding pair It is identical as RV retarder axis direction;It is further fixed on bearing bracket on the plate, there are left risers on bearing bracket And right risers, bearing assembly and encoder are installed in the left risers, output flange is set to left risers close to RV retarder Side, and it is coaxial with the output end of RV retarder, transmission is capable of fixing after contacting the two;Pass through bearing group in the right risers Part is equipped with loading axis, and output flange axis passes through shaft coupling and load after passing through bearing assembly and encoder inner hole in left risers The connection transmission of axis one end, the loading axis other end are connected with the load bar with counterweight.
Preferably, the driving mechanism is gear & rack structure, middle rack is fixed on slide plate side, and gear passes through Axis and bearing are fixed on plate, and wheel and rack constitutes transmission cooperation.
Further, the gear has handwheel driving rotation.
Preferably, the left risers and right risers center on bearing bracket open up circular hole, axis is respectively set in circular hole Bearing assembly constitutes twin spans supporting bearing base.
Preferably, the counterweight is set to the end of load bar.
Preferably, the guide rail has two, and be parallel to each other, the flat plate bottom by least 4 pieces of sliding blocks into Row smooth sliding.
Preferably, the servo motor, RV retarder, output flange, encoder, shaft coupling, loading axis are coaxial Setting.
Preferably, the flat plate bottom is set up on bracket.
Preferably, the sliding pair is equipped with the locking device of limit slippage.
Preferably, Plane of rotation of the load bar under loading axis drive is vertical with loading axis axis direction.
The present invention in terms of existing technologies, has the advantages that
1) present invention is carried out using compositions such as guide rail, sliding block, slide plate, locking device, handwheel and rack-and-pinion The sliding equipment of axial movement adjusts axial mounting distance, convenience and high-efficiency according to the difference of retarder model.
2) change that clump weight of the invention passes through counterweight and centre of gyration distance during own wt and circular motion Change, alternating load is applied to retarder, the drive error testing under varying load condition can be carried out.
3) present invention utilizes servo motor itself encoder, cooperates with peripheral hardware encoder, carries out driving error measurement, structure Simply.
4) present invention can synchronize the uninterrupted real-time testing for carrying out driving error, entirely while fatigue life test Process avoids retarder, encoder etc. and repeats dismounting to accuracy testing, fatigue life test without dismantling to retarder As a result influence, test result are more accurate.
Detailed description of the invention
Fig. 1 is RV retarder life cycle management precision degradation testing device side view;
Fig. 2 is RV retarder life cycle management precision degradation testing device axonometric drawing;
Fig. 3 is RV retarder life cycle management precision degradation testing device top view;
Fig. 4 is the assembling schematic diagram of bearing bracket and other assemblies;
In figure: plate 1, guide rail 2, sliding block 3, handwheel 4, servo motor 5, RV retarder 6, mounting bracket 7, output method Orchid 8, bearing bracket 9, encoder 10, shaft coupling 11, loading axis 12, load bar 13, counterweight 14, gear & rack structure 15, branch Frame 16, locking device 17, slide plate 18.
Specific embodiment
The present invention is further elaborated and is illustrated with reference to the accompanying drawings and detailed description.Each implementation in the present invention The technical characteristic of mode can carry out the corresponding combination under the premise of not conflicting with each other.
As shown in Figures 1 to 3, a kind of RV retarder life cycle management precision degradation testing device of the invention, it includes flat Plate 1, guide rail 2, sliding block 3, handwheel 4, servo motor 5, RV retarder 6, mounting bracket 7, output flange 8, bearing bracket 9, encoder 10, shaft coupling 11, loading axis 12, load bar 13, counterweight 14, gear & rack structure 15, bracket 16, locking device 17, slide plate 18.
Wherein, 1 bottom shelf of plate is set on bracket 16, and in order to operate, plate 1 itself should have certain counterweight, It is set to keep homeostasis not shake during the test.It is provided with two parallel guide rails 2 on plate 1, has on every guide rail 2 There are two pieces of sliding blocks 3, sliding block 3 and the cooperation of guide rail 2 constitute sliding pair.1 bottom shelf of plate is set on 4 pieces of sliding blocks 3, is carried out with sliding block flat Stable sliding is dynamic.18 side of slide plate is fixed with the driving mechanism for driving slide plate 18 to slide along 2 direction of guide rail.Driving mechanism can be any The equipment that can be driven, but consider easy to use and manufacturing cost, using gear & rack structure 15 in the present embodiment.Its Middle rack is fixed on 18 side of slide plate, and gear is fixed on plate 1 by axis and bearing, can rotate, and wheel and rack is nibbled It closes and constitutes transmission cooperation.Gear has the driving rotation of handwheel 4, can rotate with moving gear when rotating handwheel, and then drive Rack gear and slide plate 18 are moved along sliding block 3.The mounting bracket 7 of L-type is fixed on slide plate 18, and on the facade of mounting bracket 7 It is fixed with servo motor 5 and RV retarder 6 to be tested, the output end of servo motor 5 is connect with the input terminal of RV retarder 6, RV retarder 6 is driven by motor.Since the model of retarder is different, size is also different, therefore by slide plate 18 and top carry equipment can integrally move, to adapt to various sizes of retarder.Therefore, it is necessary to guarantee sliding pair Glide direction is identical as 6 axis direction of RV retarder, i.e. the laying direction of guide rail 2 is identical as 6 axis direction of RV retarder.It is leading Bearing bracket 9 is further fixed on the plate 1 of 2 one end of rail, 9 bottom of bearing bracket is fixed, and top has left risers and the right side vertical Plate, left risers and right risers center on bearing bracket 9 open up circular hole, bearing assembly are respectively set in circular hole, constitute double Across supporting bearing base.Bearing assembly and encoder 10 are installed, output flange 8 is set to left risers and slows down close to RV in left risers 6 side of device, and it is coaxial with the output end of RV retarder 6.After being adjusted to position by sliding pair, output flange 8 and RV subtracts Fast device 6 is bonded, and is fastened by screw, therefore the two is capable of fixing transmission.It is equipped with and is added by bearing assembly in right risers Axis 12 is carried, output flange axis passes through shaft coupling 11 and loading axis 12 after passing through 10 inner hole of bearing assembly and encoder in left risers One end connection transmission.Servo motor 5, RV retarder 6, output flange 8, encoder 10, shaft coupling 11, loading axis 12 are coaxially set It sets.12 other end of loading axis is connected with the load bar 13 with counterweight 14.Counterweight 14 is set to the end of load bar 13, Er Qiejia It is vertical with 12 axis direction of loading axis to carry Plane of rotation of the bar 13 under the drive of loading axis 12.Clump weight passes through own wt, with And during circular motion clump weight and centre of gyration distance variation, to retarder apply variation load.
The engine bench test of usual retarder driving error mostly uses no-load or even load, and RV retarder is in use Because of the continuous variation of mechanical arm position posture, each joint speed reducer bears live load more, tests under no-load, even load state The driving error of RV retarder not can accurately reflect the real-time driving error data of retarder in actual use, this Invention reduces robot single joint operating status, and test process applies alternating load, and test result can more reflect actual conditions.
In addition, limitation slide plate 18 no longer slides in order to after adjusting in place, need to be equipped with limit slippage on sliding pair Locking device 17.The type of locking device can choose diversified forms, such as by opening on two components for constituting sliding pair If a series of pin holes, limit then is fixed by being inserted into pin, or component is passed through one of by compression bar and with can The form of release compresses branch and peaks on another component, forms temporary spacing.Any feasible locking limit method can answer For in the present invention, without limitation.
Below based on above-mentioned test device, a kind of RV retarder life cycle management precision degeneration survey using the device is introduced Method for testing, comprising the following steps:
1) after RV retarder 6 is installed, specified or counterweight 14 greater than rated weight is installed in 13 end of load bar, is watched Taking motor 5 drives entire mechanism to carry out forward and reverse 360 ° of rotary motions, and the counterweight 14 for being connected to 13 end of load bar is doing 360 ° Since the distance to the centre of gyration constantly changes during rotary motion, apply the torque of variation to retarder;
2) by the angular encoder built in servo motor 5, and it is mounted on the angle volume of 9 left side vertical plate of bearing bracket When code device 10 obtains the input of RV retarder 6, the operation of output end single direction, value of angular displacement within the scope of 360 °, in 360 ° of periods Theoretical output angle subtract reality output angle maximum value be a cycle maximum driving error;
3) RV retarder 6 continuous service 6000 or 6000 hours or more in a fully loaded state, record every group of positive and negative rotation respectively The driving error data in period draw the curve that forward and reverse driving error changes over time respectively, and it is complete to obtain tested RV retarder 6 Life cycle transmission accuracy deterioration law.
It is described below in detail where advantage of the invention, so that those skilled in the art more fully understand reality of the invention Matter.Traditional engine bench test retarder driving error is mostly that retarder inputs, output end respectively sets encoder, and theoretical output angle subtracts The actual angle for going output coder to record is driving error, has objectively responded the transmission accuracy situation of retarder.Because often Encoder scheme is set before rule, need to additionally increase transition axis, shaft coupling etc., the precision of transition axis, shaft coupling, the installation essence of encoder Degree, can impact test result.Present invention eliminates the encoders of front end setting, directly compile using servo motor is built-in Code device and peripheral hardware encoder, which cooperate, to be measured, and retarder input gear axle is directly installed on motor shaft, and is mounted on bracket On retarder planetary gear engagement driving retarder operating, simplify structure, not only precision has a distinct increment, the weight of test result Renaturation is also preferable, and concrete outcome see the table below 1 test data.
The identical operating condition underdrive error testing data with 1 40E of table 1
In addition, traditional scheme fatigue life test and drive error testing separately carry out, retarder, encoder not can avoid Test result is impacted Deng the systematic error generated in repeating disassembly process, is embodied as repeating that measurement accuracy is installed Variation range is larger, it is contemplated that RV retarder is high-accuracy drive apparatus, and influence of the systematic error to test result has surpassed The result of variations of retarder precision cyclical regression is gone out, therefore can not judge that the degeneration of retarder complete period precision still subtracts Speed thinks highly of the variation of test result caused by multiple installation.The present invention carries out precision degradation experiment, and test process need to only start installation one Secondary, avoiding being dismounted for multiple times influences the discreteness of test result, and test result is more accurate, efficient.In addition cooperate host computer, Driving error can (6000 hours or more) uninterrupted real-time measurement in a long time, draw forward and reverse driving error at any time Between the precision change curve that elapses, it is intuitive to reflect precision deterioration law.It with 24 hours was what the period carried out that following table, which is two schemes, Life cycle management precision degradation experiment data: wherein scheme one is experimental rig testing scheme of the present invention, and data are small every 24 When extract each one group of 360 ° of driving error maximum value datas of positive and negative rotation;Scheme two is disassembly retarder peace after fatigue test 24 hours It is attached to drive error testing rack, is reinstalled tired rack progress fatigue life test after testing driving error.It is surveyed from table 2 Examination data are visible: testing stand of the present invention forward and reverse more first inspection of driving error after retarder testing fatigue 24 hours is subtracted It is small, it is increased slightly over time later, substantially conforms to precision deterioration law.And forward and reverse transmission in traditional scheme 288 hours Max value of error, the difference of minimum value are respectively 12.4arc.sec., 14arc.sec., and test result discreteness is larger, without obvious Rule, preliminary analysis are the test result for repeating the systematic error that installation test generates and affecting driving error.
The identical operating condition underdrive error degradation testing data with 2 40E of model of table 2
Above-mentioned embodiment is only a preferred solution of the present invention, so it is not intended to limiting the invention.Have The those of ordinary skill for closing technical field can also make various changes without departing from the spirit and scope of the present invention Change and modification.Therefore all mode technical solutions obtained for taking equivalent substitution or equivalent transformation, all fall within guarantor of the invention It protects in range.

Claims (10)

1. a kind of RV retarder life cycle management precision degradation testing device, it is characterised in that: including plate (1), on plate (1) It is provided with guide rail (2) and cooperates the sliding block (3) for constituting sliding pair with guide rail (2), sliding block (3) is fixedly arranged above horizontal slide plate (18);Slide plate (18) side is fixed with the driving mechanism for driving slide plate (18) to slide along guide rail (2) direction;The slide plate (18) On be fixed with mounting bracket (7), and be fixed with servo motor (5) and RV retarder (6) to be tested in mounting bracket (7), watch The output end for taking motor (5) is connect with the input terminal of RV retarder (6), the glide direction of the sliding pair and RV retarder (6) Axis direction is identical;Be further fixed on bearing bracket (9) on the plate (1), on bearing bracket (9) have left risers and Right risers are equipped with bearing assembly and encoder (10) in the left risers, and output flange (8) is set to left risers and subtracts close to RV Fast device (6) side, and it is coaxial with the output end of RV retarder (6), transmission is capable of fixing after contacting the two;In the right risers It is equipped with loading axis (12) by bearing assembly, output flange axis passes through the bearing assembly and encoder (10) inner hole in left risers Transmission, loading axis (12) other end and the load for having counterweight (14) are connect with loading axis (12) one end by shaft coupling (11) afterwards Bar (13) is connected.
2. RV retarder life cycle management precision degradation testing device as described in claim 1, it is characterised in that: the drive Motivation structure is gear & rack structure (15), and middle rack is fixed on slide plate (18) side, and gear is fixed on flat by axis and bearing On plate (1), and wheel and rack constitutes transmission cooperation.
3. RV retarder life cycle management precision degradation testing device as claimed in claim 2, it is characterised in that: the tooth Wheel has handwheel (4) driving rotation.
4. RV retarder life cycle management precision degradation testing device as described in claim 1, it is characterised in that: bearing block branch Left risers and right risers center on frame (9) open up circular hole, and bearing assembly is respectively set in circular hole, constitute twin spans spring bearing Seat.
5. RV retarder life cycle management precision degradation testing device as described in claim 1, it is characterised in that: described matches Weight (14) is set to the end of load bar (13).
6. RV retarder life cycle management precision degradation testing device as described in claim 1, it is characterised in that: described leads Rail (2) has two, and is parallel to each other, and the plate (1) bottom carries out smooth sliding by least 4 pieces of sliding blocks (3).
7. RV retarder life cycle management precision degradation testing device as described in claim 1, it is characterised in that: described watches Motor (5), RV retarder (6), output flange (8), encoder (10), shaft coupling (11), loading axis (12) is taken to be coaxially disposed.
8. RV retarder life cycle management precision degradation testing device as described in claim 1, it is characterised in that: described is flat Plate (1) bottom shelf is set on bracket (16).
9. RV retarder life cycle management precision degradation testing device as described in claim 1, it is characterised in that: the cunning The dynamic secondary locking device (17) for being equipped with limit slippage.
10. RV retarder life cycle management precision degradation testing device as described in claim 1, it is characterised in that: described Plane of rotation of the load bar (13) in the case where loading axis (12) drive is vertical with loading axis (12) axis direction.
CN201811636137.0A 2018-12-29 2018-12-29 A kind of RV retarder life cycle management precision degradation testing device Pending CN109443757A (en)

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109916622A (en) * 2019-03-27 2019-06-21 江苏胜立特机械有限公司 A kind of RV speed reducer testing stand and its connecting tooling
CN110160777A (en) * 2019-06-10 2019-08-23 北京工业大学 A kind of experimental provision measuring the plastic gear planetary reduction gear service life
CN110243711A (en) * 2019-07-05 2019-09-17 大连交通大学 A kind of constant speed formula frictional wear experiment data measuring method and testing machine
CN111879513A (en) * 2020-07-31 2020-11-03 河北工业大学 Right-angle suspension type RV reducer comprehensive performance testing device
CN112504670A (en) * 2020-11-20 2021-03-16 北京工业大学 RV reduction gear precision retentivity and fatigue life testing arrangement
CN114199553A (en) * 2021-11-11 2022-03-18 华中科技大学 Lightweight RV reduction gear comprehensive properties testing arrangement
CN114812894A (en) * 2022-04-20 2022-07-29 银川威马电机有限责任公司 Motor type test quick installation detection device
CN117347049A (en) * 2023-12-04 2024-01-05 枣庄市高晟实业有限公司 Speed reducer test machine with quick positioning function

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Publication number Priority date Publication date Assignee Title
CN109916622A (en) * 2019-03-27 2019-06-21 江苏胜立特机械有限公司 A kind of RV speed reducer testing stand and its connecting tooling
CN110160777A (en) * 2019-06-10 2019-08-23 北京工业大学 A kind of experimental provision measuring the plastic gear planetary reduction gear service life
CN110243711A (en) * 2019-07-05 2019-09-17 大连交通大学 A kind of constant speed formula frictional wear experiment data measuring method and testing machine
CN110243711B (en) * 2019-07-05 2021-12-10 大连交通大学 Constant-speed friction and wear experiment data measuring method and testing machine
CN111879513A (en) * 2020-07-31 2020-11-03 河北工业大学 Right-angle suspension type RV reducer comprehensive performance testing device
US11921003B2 (en) 2020-11-20 2024-03-05 Beijing University Of Technology Testing device for precision retaining ability and fatigue life of RV reducer
CN112504670A (en) * 2020-11-20 2021-03-16 北京工业大学 RV reduction gear precision retentivity and fatigue life testing arrangement
CN112504670B (en) * 2020-11-20 2022-04-19 北京工业大学 RV reduction gear precision retentivity and fatigue life testing arrangement
WO2022105458A1 (en) * 2020-11-20 2022-05-27 北京工业大学 Precision retentivity and fatigue life testing device for rv reducer
CN114199553A (en) * 2021-11-11 2022-03-18 华中科技大学 Lightweight RV reduction gear comprehensive properties testing arrangement
CN114199553B (en) * 2021-11-11 2023-06-16 华中科技大学 Lightweight RV reduction gear comprehensive performance testing arrangement
CN114812894A (en) * 2022-04-20 2022-07-29 银川威马电机有限责任公司 Motor type test quick installation detection device
CN117347049A (en) * 2023-12-04 2024-01-05 枣庄市高晟实业有限公司 Speed reducer test machine with quick positioning function
CN117347049B (en) * 2023-12-04 2024-02-02 枣庄市高晟实业有限公司 Speed reducer test machine with quick positioning function

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