CN104620755B - A kind of hay mower running gear durable test device and method - Google Patents
A kind of hay mower running gear durable test device and method Download PDFInfo
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- CN104620755B CN104620755B CN201510069020.9A CN201510069020A CN104620755B CN 104620755 B CN104620755 B CN 104620755B CN 201510069020 A CN201510069020 A CN 201510069020A CN 104620755 B CN104620755 B CN 104620755B
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Abstract
A kind of hay mower running gear durable test device,Including testboard,The fixed mechanism for being used to fix hay mover being arranged on testboard,It is arranged on the mechanism loading and control device for being used for that load is provided to driving wheel on testboard,The mechanism loading includes the loadwheel being rotatably provided in by wheel shaft on testboard,The frequency converter of load motor and connection load motor that driving load wheel rotates is connected by transmission mechanism,The transmission mechanism is provided with the torque rotary speed sensor for testing wheel axle torque and rotating speed,The control device is connected to torque and the rotating speed of control wheel shaft with frequency converter and torque rotary speed sensor respectively,During test,The driving wheel is supported on loadwheel and loadwheel resistance band dynamic load wheel can be overcome to rotate,The present invention can simulate hay mover and work under circumstances,To meet the test requirements document of various hay mowers.
Description
Technical field
The present invention relates to a kind of hay mower running gear durable test device and method.
Background technology
The running gear of hay mower has to make long duration test, because it involves many moving components, for example passes
Dynamic belt, belt pulley, walking device, ratchet, bearing, driving wheel etc., each parts damages, its function just fails, and product just loses
Lose, client's complaint increases, and maintenance cost increases suddenly, or even stockpiling of unsold product, and enterprises' loss is heavy.So necessary prescribed product is durable
Time, and can checking the durable of product that do experiment meet to require, and current hay mower long duration test uses two kinds of sides
Method：When mow on the spot, but this method needs substantial amounts of place and manpower, and disturbed by weather conditions, the time is uncontrolled,
Many deficiencies；Second, being turn-taked on a fixed place, the frictional force of earth's surface and the driving force of hay mower are uncontrolled；And
And normative method and requirement, driving force and frictional force immeasurability and the regulation of both neither ones sciences, randomness
It is very big, it is impossible to reflect objective, the test level of science.
The content of the invention
The purpose of the present invention is in view of the shortcomings of the prior art, there is provided it is a kind of can the various working environments of accurate simulation lawn
Hay mover running gear durable test device and method.
The purpose of the present invention is realized by following technical solution：
A kind of hay mower running gear durable test device, for testing the driving wheel and its transmission parts of hay mover
Endurance quality, it is characterised in that：Including testboard, the fixed mechanism for fixing hay mover being arranged on testboard, set
The mechanism loading and control device for being used for that load is provided to driving wheel on testboard are put, the mechanism loading includes passing through wheel shaft
The load motor and connection for be rotatably provided in loadwheel on testboard, driving load wheel is connected by transmission mechanism rotating are negative
The frequency converter of motor is carried, the transmission mechanism is provided with the torque rotary speed sensor for testing wheel axle torque and rotating speed, described
Control device is connected to torque and the rotating speed of control wheel shaft with frequency converter and torque rotary speed sensor respectively, described during test
Driving wheel is supported on loadwheel and loadwheel resistance band dynamic load wheel can be overcome to rotate.
Further, the fixed mechanism includes being arranged on the first guide rod of front and rear extension on testboard, activity setting
Slide on the first guide rod, it is arranged on the first screw mandrel of front and rear extension on testboard, is arranged on slide and the first screw mandrel
Coordinate the first nut, be arranged on extended laterally on slide the second guide rod, activity coordinate on the second guide rod two before
Wheel carrier bracker, it is arranged on the second screw mandrel extended laterally on slide, is separately positioned on what is coordinated on two front wheel brackets with the second screw mandrel
Second nut, rotated by the second screw mandrel of operation before can making two front wheel bracket relative motions to clamp or discharge the two of hay mover
Wheel.
Further, present invention additionally comprises the execution for being connected to operate hay mover traveling controller with the control device
Mechanism, the executing agency include the first cylinder for being connected with the clutch operating lever of the traveling controller and with the travelling control
Second cylinder of the flame-out quenching operations bar connection of device.
Further, the transmission mechanism includes clutch, torque rotary speed sensor, belt and belt pulley, the load
Motor connects the input of clutch, the output end of clutch and the input of torque rotary speed sensor by belt with belt pulley
Connection, the output end of torque rotary speed sensor and the wheel axis connection.
Further, the loadwheel includes being arranged on relative with the driving wheel of hay mover two on wheel shaft two.
Further, the loadwheel outer peripheral face is formed with anti-slop serrations.
Further, the control device is provided with display screen, for showing the various parameters of test process.
A kind of hay mower running gear durability test method, comprises the following steps：
(1), hay mover is fixed on testboard, the driving wheel of hay mover is supported on the loadwheel of mechanism loading,
Now the clutch of mechanism loading is in released state, and load motor is in holding state；
(2), starting the traveling controller of hay mover rotates driving wheel and drives loadwheel to dally, and runs 2-5s；
(3) the clutch closure of mechanism loading, is controlled, to apply the braking moment of light load to the driving wheel of hay mover,
Run 2-5s；
(4), the load motor of starting load mechanism, the braking moment of application is promoted to middle load by light load, run
12-18s；
(5) load motor of mechanism loading, is closed, the braking moment of application is dropped to light load by middle load, is run
2-5s；
(6), the load motor of starting load mechanism, the braking moment of application is promoted to heavy load by light load, run
2-5s；
(7) load motor of mechanism loading, is closed, the braking moment of application is dropped to light load by heavy load, is run
2-5s；
(8) traveling controller of hay mover, is closed, 8-12s Posterior circles repeat the above steps until test is completed, according to survey
The abrasion condition of examination rear drive sprocket and its transmission parts judges its endurance quality.
Further, the middle load in the braking moment T that driving wheel applies=GSinA ° of R, the heavy load driving
The braking moment T weight=GSinB ° R that driving wheel applies；G is the gross weight that hay mover fills grass；R is the radius of driving wheel；A ° and B °
For the hay mover gradient of simulation, A ° is less than B °.
Further, in the T=GSin10 ° of R, T weight=GSin18 ° R.
The present invention has the advantages that：
The present invention can be conveniently adjusted test period, driving wheel load enables to simulate hay mover work under circumstances
Make, to meet the test requirements document of various hay mowers, test parameters instantaneously shows and is recorded in instrument, can simulation reconstruction grass
The real various running conditions of lawn mower, the round-the-clock long duration test of objective science is carried out, is not influenceed by space enrironment, saved
Manpower is saved and has improved test efficiency, experiment is truer and accurate.
Brief description of the drawings
The present invention is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the use state figure of the present invention.
Fig. 2 is the component decomposition map of the present invention.
Embodiment
It is shown referring to Figures 1 and 2, a kind of hay mower running gear durable test device, including testboard 1, front-wheel
Fixed mechanism, mechanism loading, executing agency and control device.
Testboard 1 is rectangular housing, including base 11, top cover 12 and the gusset being arranged between base 11 and top cover 12
13。
Front-wheel fixed mechanism is including being arranged on the first guide rod 47 of front and rear extension on the base 11 of testboard 1, activity is set
The slide 46 on the first guide rod 47 is put, the first screw mandrel 45 of front and rear extension on the base 11 of testboard 1 is arranged on, is arranged on
The first nut (not shown) for coordinating on slide 46 with the first screw mandrel 45, it is arranged on extended laterally on slide 46 second and leads
Coordinate two front wheel brackets on the second guide rod 44 to bar 44, activity, be arranged on the second screw mandrel for being extended laterally on slide 46
43rd, the second nut (not shown) coordinated on two front wheel brackets with the second screw mandrel 43, first, second screw mandrel are separately positioned on
45th, operation handwheel 451,431 is respectively arranged with 43, can make two front wheel bracket relative motions by operating the second screw mandrel 43 and rotating
To clamp or discharge two front-wheels 32 of hay mover, front wheel bracket includes the sliding block 41 being movably arranged on the second guide rod 44 and set
Put the wheel support 42 being adapted on sliding block 41 with front-wheel；Can move forward and backward two front wheel brackets by operating the first screw mandrel 45 and rotating
To adjust the front and back position of hay mover 3.
Two loadwheels 21 that mechanism loading includes being rotatably provided on testboard 1 by wheel shaft 25, pass through transmission mechanism
Connect the frequency converter of load motor 24 that driving load wheel 21 rotates and connection load motor 24, the outer peripheral face of loadwheel 21 formed with
Anti-slop serrations, transmission mechanism include clutch 23, torque rotary speed sensor 24, belt 26 and belt pulley, and load motor 24 passes through skin
The input of clutch 23 is connected with belt pulley with 26, the output end of clutch 23 connects with the input of torque rotary speed sensor 24
Connect, the output end of torque rotary speed sensor 24 is connected with wheel shaft 25, torque rotary speed sensor 24 be used for test the torque of wheel shaft 25 and
Rotating speed, control device are connected to torque and the rotating speed of control wheel shaft 25 with frequency converter and torque rotary speed sensor 24 respectively, survey
During examination, driving wheel 31 is supported on loadwheel 21 and the resistance band dynamic load wheel 21 of loadwheel 21 can be overcome to rotate, and control device is set
Display screen is equipped with, for showing the various parameters of test process.
Executing agency includes the first cylinder for being connected with the clutch operating lever of traveling controller and put out with traveling controller
Second cylinder of fiery action bars connection.
A kind of hay mower running gear durability test method, comprises the following steps：
(1), hay mover 3 is fixed on testboard 1 by front-wheel fixed mechanism, supports the driving wheel 31 of hay mover 3
On the loadwheel 21 of mechanism loading, now the clutch 23 of mechanism loading is in released state, and load motor 24 is in standby
State；
(2), starting the traveling controller of hay mover 3 rotates driving wheel 31 and drives loadwheel 21 to dally, and runs 3s；
(3), the clutch 23 of mechanism loading is controlled to close, to apply the braking of light load to the driving wheel 31 of hay mover 3
Torque, run 3s；
(4), the load motor 24 of starting load mechanism, the braking moment of application is promoted to middle load by light load, transport
Row 15s, the braking moment T that middle load applies in driving wheel 31In=GSin10 ° of R, G is that hay mover fills careless gross weight, unit
For ox；R is the radius of driving wheel, and unit is rice.
(5) load motor 24 of mechanism loading, is closed, the braking moment of application is dropped to light load by middle load, is transported
Row 3s；
(6), the load motor 24 of starting load mechanism, the braking moment of application is promoted to heavy load by light load, transport
Row 3s, TWeight=GSi, 18 ° of R.
(7) the load electricity .24 of mechanism loading, is closed, the braking moment of application is dropped to light load by heavy load, is run
3s；
(8) traveling controller of hay mover, is closed, 10s Posterior circles repeat the above steps until test is completed, according to test
The abrasion condition of rear drive sprocket 31 and its transmission parts judges its endurance quality.
Torque that instrument is shown, rotating speed are the braking moment T on loadwheelCylinderWith rotating speed NCylinder, the torque T with driving wheelWheel, turn
Fast NWheelRelation is：
TCylinder=TWheel*r/R
TWheel=TCylinder*R/r
NWheel=NCylinder*r/R
R is the radius of loadwheel
R is the radius of driving wheel.
The foregoing is only a preferred embodiment of the present invention, therefore the scope that the present invention is implemented can not be limited with this, i.e.,
The equivalent changes and modifications made according to scope of the present invention patent and description, it all should still belong to what patent of the present invention covered
In the range of.
Claims (9)
1. a kind of hay mower running gear durable test device, for testing the driving wheel and its transmission parts of hay mover
Endurance quality, it is characterised in that：Including testboard, the fixed mechanism for being used to fix hay mover being arranged on testboard, set
It is used for the mechanism loading and control device that load is provided to driving wheel on testboard, the mechanism loading includes can by wheel shaft
It is rotatably arranged on the loadwheel on testboard, the load motor by transmission mechanism connection driving load wheel rotation and connection load
The frequency converter of motor, the transmission mechanism are provided with the torque rotary speed sensor for testing wheel axle torque and rotating speed, the control
Device processed is connected to torque and the rotating speed of control wheel shaft with frequency converter and torque rotary speed sensor respectively, during test, the drive
Driving wheel is supported on loadwheel and loadwheel resistance band dynamic load wheel can be overcome to rotate；
The fixed mechanism includes being arranged on the first guide rod of front and rear extension on testboard, is movably arranged on the first guide rod
Slide, be arranged on the first screw mandrel of front and rear extension on testboard, be arranged on slide with the first screw mandrel coordinate the first nut,
It is arranged on the second guide rod extended laterally on slide, movable two front wheel brackets coordinated on the second guide rod, is arranged on cunning
The second screw mandrel for being extended laterally on seat, the second nut coordinated on two front wheel brackets with the second screw mandrel is separately positioned on, passes through behaviour
Two front wheel bracket relative motions can be made to clamp or discharge two front-wheels of hay mover by making the rotation of the second screw mandrel.
A kind of 2. hay mower running gear durable test device according to claim 1, it is characterised in that：Also include
It is connected to operate the executing agency of hay mover traveling controller with the control device, the executing agency includes and the walking
Controller clutch operating lever connection the first cylinder and with the traveling controller stop working quenching operations bar be connected second
Cylinder.
A kind of 3. hay mower running gear durable test device according to claim 1 or 2, it is characterised in that：Institute
Stating transmission mechanism includes clutch, torque rotary speed sensor, belt and belt pulley, and the load motor passes through belt and belt pulley
The input of clutch is connected, the output end of clutch and the input of torque rotary speed sensor connect, torque rotary speed sensor
Output end and the wheel axis connection.
A kind of 4. hay mower running gear durable test device according to claim 1 or 2, it is characterised in that：Institute
Stating loadwheel includes being arranged on relative with the driving wheel of hay mover two on wheel shaft two.
A kind of 5. hay mower running gear durable test device according to claim 1 or 2, it is characterised in that：Institute
Loadwheel outer peripheral face is stated formed with anti-slop serrations.
A kind of 6. hay mower running gear durable test device according to claim 1 or 2, it is characterised in that：Institute
State control device and be provided with display screen, for showing the various parameters of test process.
7. a kind of hay mower running gear durability test method, comprises the following steps：
(1), hay mover is fixed on testboard, the driving wheel of hay mover is supported on the loadwheel of mechanism loading, now
The clutch of mechanism loading is in released state, and load motor is in holding state；
(2), starting the traveling controller of hay mover rotates driving wheel and drives loadwheel to dally, and runs 2-5s；
(3) the clutch closure of mechanism loading, is controlled, to apply the braking moment of light load, operation to the driving wheel of hay mover
2-5s；
(4), the load motor of starting load mechanism, the braking moment of application is promoted to middle load by light load, run 12-
18s；
(5) load motor of mechanism loading, is closed, the braking moment of application is dropped to light load by middle load, runs 2-5s；
(6), the load motor of starting load mechanism, the braking moment of application is promoted to heavy load by light load, run 2-5s；
(7) load motor of mechanism loading, is closed, the braking moment of application is dropped to light load by heavy load, runs 2-5s；
(8) traveling controller of hay mover, is closed, 8-12s Posterior circles repeat the above steps until test is completed, after test
The abrasion condition of driving wheel and its transmission parts judges its endurance quality.
A kind of 8. hay mower running gear durability test method according to claim 7, it is characterised in that：In described
The braking moment T that load applies in driving wheelIn=GSinA ° of R, the braking moment T that the heavy load applies in driving wheelWeight=
GSinB°R；G is the gross weight that hay mover fills grass；R is the radius of driving wheel；The A ° and B ° hay mover gradient for simulation,
A ° is less than B °.
A kind of 9. hay mower running gear durability test method according to claim 8, it is characterised in that：The TIn
=GSin10 ° of R, TWeight=GSin18 ° of R.
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| CN201510069020.9A CN104620755B (en) | 2015-02-10 | 2015-02-10 | A kind of hay mower running gear durable test device and method |
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| CN201510069020.9A CN104620755B (en) | 2015-02-10 | 2015-02-10 | A kind of hay mower running gear durable test device and method |
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| CN104620755B true CN104620755B (en) | 2017-11-21 |
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| CN107172956A (en) * | 2017-05-16 | 2017-09-19 | 重庆大江动力设备制造有限公司 | Hay mover multi-function test stand |
| CN108593316A (en) * | 2017-12-25 | 2018-09-28 | 利欧集团浙江泵业有限公司 | Grass trimmer testboard and on-line testing method |
| CN111521409A (en) * | 2020-04-30 | 2020-08-11 | 金瓜子科技发展（北京）有限公司 | Life testing device |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202974668U (en) * | 2012-08-15 | 2013-06-05 | 同济汽车设计研究院有限公司 | Automobile endurance drum dynamometer |
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| JP3383539B2 (en) * | 1997-01-13 | 2003-03-04 | 株式会社クボタ | Walking mower |
| CN101389211B (en) * | 2006-02-16 | 2010-09-29 | 凯姿股份有限公司 | Transmission device of walking type self-traveling lawn mower |
| JP5063970B2 (en) * | 2006-10-02 | 2012-10-31 | 富士重工業株式会社 | Portable power work machine |
| CN201955247U (en) * | 2010-12-10 | 2011-08-31 | 上海六易机电设备有限公司 | Fuel mower performance test stand |
| CN204498764U (en) * | 2015-02-10 | 2015-07-29 | 福建省晋江市三力机车有限公司 | A kind of hay mower running gear durable test device |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202974668U (en) * | 2012-08-15 | 2013-06-05 | 同济汽车设计研究院有限公司 | Automobile endurance drum dynamometer |
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