CN104594408A - Electromagnetic type active metamorphic 5R-4R-4R controllable excavation mechanism - Google Patents
Electromagnetic type active metamorphic 5R-4R-4R controllable excavation mechanism Download PDFInfo
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- CN104594408A CN104594408A CN201410826353.7A CN201410826353A CN104594408A CN 104594408 A CN104594408 A CN 104594408A CN 201410826353 A CN201410826353 A CN 201410826353A CN 104594408 A CN104594408 A CN 104594408A
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- revolute pair
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Abstract
An electromagnetic type active metamorphic 5R-4R-4R controllable excavation mechanism comprises a machine frame, a large arm swinging mechanism, a bucket rod ascending and descending mechanism, a bucket keeping mechanism and an electromagnetic locking device. The large arm swinging mechanism comprises a large arm and a swinging mechanism. The bucket rod ascending and descending mechanism comprises a bucket rod and an ascending and descending mechanism. The bucket keeping mechanism comprises a bucket and a keeping mechanism. The electromagnetic locking device is installed on a rotation pair. The active metamorphic function is achieved through the electromagnetic locking conducted on the rotation pair. Traditional hydraulic transmission is replaced with a connecting rod transmission mechanism, and the defects that a hydraulic system of a hydraulic excavator is complex and prone to oil leakage are overcome; the electromagnetic locking device is arranged on the rotation pair, and therefore the active metamorphism can be achieved according to different working conditions, the flexibility of the hydraulic excavator is achieved, the three-freedom-degree excavation work can be achieved through two active rods, the manufacturing cost of the excavation mechanism is reduced, and the electromagnetic type active metamorphic 5R-4R-4R controllable excavation mechanism is suitable for manufacturing various excavators and other engineering machines.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of electromagnetism initiatively becomes the 5R-4R-4R excavating mechanism of controllable of born of the same parents.
Background technology
Excavator is a kind of common engineering machinery, is mainly used in various earthwork construction.Wherein hydraulic crawler excavator is a most widely used class excavator, but hydraulic system manufacturing cost is high, easily occurs the problems such as leakage of oil, and these are all the long-standing thorny problems of hydraulic excavator.And traditional single-degree-of-freedom mechanical digging machine, be commonly called as " power shovel ", can only realize simply and the track that can not change output, therefore can not in the application of field acquisition widely as hydraulic excavator.
Along with the development of motor technology and the raising of control technology, controllable mechanism is that engineering machinery provides wide development space, not only having that working space is large by controlling motor-driven multiple degrees of freedom controllable mechanism, flexible movements, complicated and variable movement locus can be completed export, also there is low cost of manufacture simultaneously, the advantages such as maintaining is simple, controllable-mechanism type excavator is owing to instead of hydraulic drive with multiple degrees of freedom linkage, avoid hydraulic system requirement on machining accuracy high, maintaining cost is high, easily produces the problems such as leakage of oil.But, existing controllable-mechanism type excavator mainly relies on multivariant linkage work, multiple degrees of freedom linkage was controlled in the past, often need to carry out drived control with the control motor with linkage degree of freedom equivalent amount, not only considerably increase manufacturing cost, and adding the complexity of frame transmission system, these shortcomings have certain restriction to multiple degrees of freedom controllable mechanism in the application of engineering machinery field.Initiatively the introducing of metamorphic mechanisms, completes different actions under can be implemented in different condition, under different operation, performs different actions as required, solving the problem that above-mentioned traditional mechanism runs into while, can reduce again and control cost.
Summary of the invention
A kind of electromagnetism is the object of the present invention is to provide initiatively to become the 5R-4R-4R excavating mechanism of controllable of born of the same parents, first should have that conventional hydraulic excavator working space is large, digging force is large, the stressed advantage such as good, overcome the shortcomings such as conventional hydraulic excavator maintenance cost is high, operation noise large, Hydraulic Elements cost is high, reaction is sensitive not, simultaneously, also should reduce the usage quantity of driving lever, to reduce controllable motor quantity, reduce digging mechanism manufacturing cost.
The present invention achieves the above object by the following technical programs: a kind of electromagnetism initiatively becomes the 5R-4R-4R excavating mechanism of controllable of born of the same parents, comprise frame, large arm swing mechanism, dipper act descending mechanism, scraper bowl maintaining body and electromagnetic locking device, concrete structure and connected mode are:
Described large arm swing mechanism is made up of large arm, the first driving lever, the second driving lever and first connecting rod, described first driving lever is connected with frame by the first revolute pair, the first driving lever other end is connected with large arm by the second revolute pair, second driving lever is connected with frame by the 3rd revolute pair, the second driving lever other end is connected with first connecting rod by the 4th revolute pair, the first connecting rod other end is connected with large arm by the 5th revolute pair, and large arm is connected with turning rod by the 14 revolute pair
Described dipper is lifted descending mechanism and is made up of dipper, second connecting rod and the 3rd driving lever, described 3rd driving lever is connected with first connecting rod by the 6th revolute pair, the 3rd driving lever other end is connected with second connecting rod by the 7th revolute pair, the third connecting rod other end is connected with dipper by the 13 revolute pair, the dipper other end is connected with scraper bowl by the 8th revolute pair
Described scraper bowl maintaining body is made up of scraper bowl and maintaining body, described maintaining body is made up of second connecting rod, maintenance bar and turning rod, described second connecting rod is connected with the 3rd driving lever by the 7th revolute pair, the second connecting rod other end is connected with maintenance bar by the tenth revolute pair, keep the bar other end to be connected with turning rod by the 11 revolute pair, the turning rod other end is connected with scraper bowl by the 12 revolute pair.
Described electromagnetic locking device is two, first electromagnetic locking device and the second electromagnetic locking device are arranged on the second revolute pair of the first driving lever end and large arm junction respectively, with the tenth revolute pair of the junction of second connecting rod end and the 3rd driving lever, the operating mode different according to digging mechanism is locked in good time, when large arm swing, second electromagnetic locking device rotating vice division chief is opened, second revolute pair degree of affranchising, tenth electromagnetic locking device rotating vice division chief is locked, tenth revolute pair loses degree of freedom, now, large arm is at the first driving lever effect lower swing.When scraper bowl swings separately, when the first electromagnetic locking device and the locking of the secondth electromagnetic locking device, the second revolute pair and the tenth revolute pair lose degree of freedom, and now scraper bowl realizes upset under the second driving lever drives.In whole digging operation process, the electromagnetic locking device at two places, according to different working conditions, suitable locking, to be opened, and jointly completes digging operation.
Described first driving lever, the second driving lever, the 3rd driving lever are respectively by driven by servomotor.
Outstanding advantages of the present invention is:
1, utilize link transmission to substitute hydraulic drive, solve conventional excavators cost of upkeep high, the shortcomings such as Hydraulic Elements cost is high, and operation noise is large;
2, adopt and on linkage, to install electromagnetic locking device additional realize digging mechanism and initiatively become born of the same parents' function, make this digging mechanism lock some revolute pair according to different operating mode, reduce the degree of freedom of digging mechanism in good time, thus decrease the usage quantity of controllable motor.Compare other multiple degrees of freedom excavating mechanism of controllable, this invention utilizes two controllable motors can complete Three Degree Of Freedom digging operation, not only greatly reduce the cost of excavating mechanism of controllable, and reduce the complexity of frame transmission system, be more applicable for and manufacture all kinds of excavator and other engineering machinery;
3, this digging mechanism driving link type of drive is flexible and changeable, can select driven by servomotor, the drive forms such as combination drive, not only environmental protection, and be easy to realize Long-distance Control, reduces the advantages such as labor strength.
Accompanying drawing explanation
Fig. 1 is the structural representation that electromagnetism of the present invention initiatively becomes the 5R-4R-4R excavating mechanism of controllable of born of the same parents.
Fig. 2 is the large arm swing mechanism schematic diagram that electromagnetism of the present invention initiatively becomes the 5R-4R-4R excavating mechanism of controllable of born of the same parents.
Fig. 3 is the dipper act descending mechanism schematic diagram that electromagnetism of the present invention initiatively becomes the 5R-4R-4R excavating mechanism of controllable of born of the same parents.
Fig. 4 is the scraper bowl maintaining body schematic diagram that electromagnetism of the present invention initiatively becomes the 5R-4R-4R excavating mechanism of controllable of born of the same parents.
Fig. 5 is the stereogram that electromagnetism of the present invention initiatively becomes the 5R-4R-4R excavating mechanism of controllable of born of the same parents.
Detailed description of the invention
Below by way of drawings and Examples, technical scheme of the present invention is described further.
Contrast Fig. 1, electromagnetism of the present invention initiatively becomes the 5R-4R-4R excavating mechanism of controllable of born of the same parents, comprises frame 1, large arm swing mechanism, dipper act descending mechanism, scraper bowl maintaining body and the first electromagnetic locking device 25, second electromagnetic locking device 26.Concrete structure and connected mode are:
Contrast Fig. 1 and Fig. 2, described large arm swing mechanism is made up of large arm 5, first driving lever 3, second driving lever 20 and first connecting rod 22, described first driving lever 3 is connected with frame 1 by the first revolute pair 2, first driving lever 3 other end is connected with large arm 5 by the second revolute pair 4, second driving lever 20 is connected with frame 1 by the 3rd revolute pair 19, second driving lever 20 other end is connected with first connecting rod 22 by the 4th revolute pair 21, first connecting rod 22 other end is connected with large arm 5 by the 5th revolute pair 6, and large arm 5 the 14 revolute pair 24 is connected with turning rod 8.
Contrast Fig. 1 and Fig. 3, described dipper is lifted descending mechanism and is made up of dipper 12, second connecting rod 17 and the 3rd driving lever 14, described 3rd driving lever 14 is connected with first connecting rod 22 by the 6th revolute pair 15,3rd driving lever 14 other end is connected with second connecting rod 17 by the 7th revolute pair 16, third connecting rod 17 other end is connected with dipper 12 by the 13 revolute pair 23, and dipper 12 other end is connected with scraper bowl 10 by the 8th revolute pair 11.
Contrast Fig. 1 and Fig. 4, described scraper bowl maintaining body is made up of scraper bowl 10 and maintaining body, described maintaining body is made up of second connecting rod 17, maintenance bar 18 and turning rod 8, described second connecting rod 17 is connected with the 3rd driving lever 14 by the 7th revolute pair 16, second connecting rod 17 other end is connected with maintenance bar 18 by the tenth revolute pair 13, keep bar 18 other end to be connected with turning rod 8 by the 11 revolute pair 7, turning rod 8 other end is connected with scraper bowl 10 by the 12 revolute pair 9.
Described first electromagnetic locking device 25, second electromagnetic locking device 26 is arranged on the second revolute pair 4 of the first driving lever 3 end and large arm 5 junction respectively, with the tenth revolute pair 13 of the junction of second connecting rod 17 end and the 3rd driving lever 14, the operating mode different according to digging mechanism is locked in good time.When large arm 5 swings, the electromagnetic locking device at the second revolute pair 4 place is opened, the second revolute pair 4 degree of affranchising, and the electromagnetic locking device locking at the tenth revolute pair 13 place, the tenth revolute pair 13 loses degree of freedom, and now, large arm 5 acts on lower swing at the first driving lever 3.When scraper bowl 10 swings separately, when the first electromagnetic locking device 25 and the secondth electromagnetic locking device 26 are locked, the second revolute pair 4 and the tenth revolute pair 13 lose degree of freedom, and now scraper bowl 10 realizes upset under the second driving lever 20 drives.In whole digging operation process, the electromagnetic locking device at two places, according to different working conditions, suitable locking, to be opened, and jointly completes digging operation.
Described first driving lever 3, second driving link 20, the 3rd driving lever 14 are respectively by driven by servomotor.
Claims (1)
1. electromagnetism initiatively becomes a born of the same parents' 5R-4R-4R excavating mechanism of controllable, and comprise frame, large arm swing mechanism, dipper act descending mechanism, scraper bowl maintaining body and electromagnetic locking device, it is characterized in that, concrete structure and connected mode are:
Described large arm swing mechanism is made up of large arm, the first driving lever, the second driving lever and first connecting rod, described first driving lever is connected with frame by the first revolute pair, the first driving lever other end is connected with large arm by the second revolute pair, second driving lever is connected with frame by the 3rd revolute pair, the second driving lever other end is connected with first connecting rod by the 4th revolute pair, the first connecting rod other end is connected with large arm by the 5th revolute pair, and large arm is connected with turning rod by the 14 revolute pair
Described dipper is lifted descending mechanism and is made up of dipper, second connecting rod and the 3rd driving lever, described 3rd driving lever is connected with first connecting rod by the 6th revolute pair, the 3rd driving lever other end is connected with second connecting rod by the 7th revolute pair, the third connecting rod other end is connected with dipper by the 13 revolute pair, the dipper other end is connected with scraper bowl by the 8th revolute pair
Described scraper bowl maintaining body is made up of scraper bowl and maintaining body, described maintaining body is made up of second connecting rod, maintenance bar and turning rod, described second connecting rod is connected with the 3rd driving lever by the 7th revolute pair, the second connecting rod other end is connected with maintenance bar by the tenth revolute pair, keep the bar other end to be connected with turning rod by the 11 revolute pair, the turning rod other end is connected with scraper bowl by the 12 revolute pair.
Described electromagnetic locking device is two, first electromagnetic locking device and the second electromagnetic locking device are arranged on the second revolute pair of the first driving lever end and large arm junction respectively, with the tenth revolute pair of the junction of second connecting rod end and the 3rd driving lever, the operating mode different according to digging mechanism is locked in good time, when large arm swing, second electromagnetic locking device rotating vice division chief is opened, second revolute pair degree of affranchising, tenth electromagnetic locking device rotating vice division chief is locked, tenth revolute pair loses degree of freedom, now, large arm is at the first driving lever effect lower swing.When scraper bowl swings separately, when the first electromagnetic locking device and the locking of the secondth electromagnetic locking device, the second revolute pair and the tenth revolute pair lose degree of freedom, and now scraper bowl realizes upset under the second driving lever drives.In whole digging operation process, the electromagnetic locking device at two places, according to different working conditions, suitable locking, to be opened, and jointly completes digging operation,
Described first driving lever, the second driving lever, the 3rd driving lever are respectively by driven by servomotor.
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| CN201410826353.7A CN104594408A (en) | 2014-12-25 | 2014-12-25 | Electromagnetic type active metamorphic 5R-4R-4R controllable excavation mechanism |
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| CN201410826353.7A CN104594408A (en) | 2014-12-25 | 2014-12-25 | Electromagnetic type active metamorphic 5R-4R-4R controllable excavation mechanism |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08184072A (en) * | 1994-12-28 | 1996-07-16 | Yutani Heavy Ind Ltd | Structure of tilt-angle dozer device |
| DE102004027203A1 (en) * | 2004-03-29 | 2005-11-10 | Komatsu Hanomag Gmbh | Working vehicle, especially wheel loader, has positions and spacing of bearings within lifting and tilting unit selected so that inclination of working tool relative to horizontal varies by 4 degrees at most during lifting movement |
| CN101666104A (en) * | 2009-09-30 | 2010-03-10 | 广西大学 | Excavating mechanism of controllable planar three degree of freedom |
| CN202157349U (en) * | 2011-07-07 | 2012-03-07 | 广西大学 | Controllable multiple-connecting-rod excavation mechanism |
| CN104032781A (en) * | 2014-06-27 | 2014-09-10 | 广西大学 | Electromagnetically-braked actively-metamorphic multi-link controllable excavation mechanism |
| CN104047318A (en) * | 2014-06-27 | 2014-09-17 | 广西大学 | Electromagnetic braking initiative metamorphic multi-connecting-rod controllable excavation mechanism |
-
2014
- 2014-12-25 CN CN201410826353.7A patent/CN104594408A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08184072A (en) * | 1994-12-28 | 1996-07-16 | Yutani Heavy Ind Ltd | Structure of tilt-angle dozer device |
| DE102004027203A1 (en) * | 2004-03-29 | 2005-11-10 | Komatsu Hanomag Gmbh | Working vehicle, especially wheel loader, has positions and spacing of bearings within lifting and tilting unit selected so that inclination of working tool relative to horizontal varies by 4 degrees at most during lifting movement |
| CN101666104A (en) * | 2009-09-30 | 2010-03-10 | 广西大学 | Excavating mechanism of controllable planar three degree of freedom |
| CN202157349U (en) * | 2011-07-07 | 2012-03-07 | 广西大学 | Controllable multiple-connecting-rod excavation mechanism |
| CN104032781A (en) * | 2014-06-27 | 2014-09-10 | 广西大学 | Electromagnetically-braked actively-metamorphic multi-link controllable excavation mechanism |
| CN104047318A (en) * | 2014-06-27 | 2014-09-17 | 广西大学 | Electromagnetic braking initiative metamorphic multi-connecting-rod controllable excavation mechanism |
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