CN104499519A - Electromagnetic metamorphic multi-connecting rod controllable excavating mechanism with bucket retaining mechanism - Google Patents
Electromagnetic metamorphic multi-connecting rod controllable excavating mechanism with bucket retaining mechanism Download PDFInfo
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- CN104499519A CN104499519A CN201410826090.XA CN201410826090A CN104499519A CN 104499519 A CN104499519 A CN 104499519A CN 201410826090 A CN201410826090 A CN 201410826090A CN 104499519 A CN104499519 A CN 104499519A
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- revolute pair
- driving lever
- connecting rod
- large arm
- scraper bowl
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Abstract
The invention discloses an electromagnetic metamorphic multi-connecting rod controllable excavating mechanism with a bucket retaining mechanism. The excavating mechanism comprises a frame, a large arm swinging mechanism, a bucket rod lifting mechanism, a bucket retaining mechanism and electromagnetic locking devices, wherein the large arm swinging mechanism comprises a large arm and a swinging mechanism; the bucket rod lifting mechanism comprises a bucket rod and a lifting mechanism; the bucket retaining mechanism comprises a bucket and a retaining mechanism; the electromagnetic locking devices are mounted on revolute pairs; an initiative metamorphic function is realized through electromagnetic locking of the revolute pairs. The excavating mechanism adopts a connecting rod transmission mechanism to replace conventional hydraulic transmission, and can overcome the defects that hydraulic systems of hydraulic excavators are complex, and easy in oil leak; as the electromagnetic locking devices are adopted on the revolute pairs, initiative metamorphism can be conducted according to different working conditions; not only is the flexibility of hydraulic excavators provided, but also three degrees of freedom excavation operation can be realized by utilizing two driving rods; the manufacturing cost of an excavating mechanism is reduced; the excavating mechanism is suitable for manufacturing various excavating machines and other engineering machineries.
Description
Technical field
The present invention relates to engineering machinery field, particularly a kind of electromagnetism containing scraper bowl maintaining body becomes born of the same parents' multi link excavating mechanism of controllable.
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 containing scraper bowl maintaining body is the object of the present invention is to provide to become born of the same parents' multi link excavating mechanism of controllable, 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 containing scraper bowl maintaining body becomes born of the same parents' multi link excavating mechanism of controllable, comprises 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 frame 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, the bar other end is kept 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, be 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 the electromagnetism containing scraper bowl maintaining body of the present invention becomes born of the same parents' multi link excavating mechanism of controllable.
Fig. 2 is the large arm swing mechanism schematic diagram that the electromagnetism containing scraper bowl maintaining body of the present invention becomes born of the same parents' multi link excavating mechanism of controllable.
Fig. 3 is the dipper act descending mechanism schematic diagram that the electromagnetism containing scraper bowl maintaining body of the present invention becomes born of the same parents' multi link excavating mechanism of controllable.
Fig. 4 is the scraper bowl maintaining body schematic diagram that the electromagnetism containing scraper bowl maintaining body of the present invention becomes born of the same parents' multi link excavating mechanism of controllable.
Fig. 5 is the stereogram that the electromagnetism containing scraper bowl maintaining body of the present invention becomes born of the same parents' multi link excavating mechanism of controllable.
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 containing scraper bowl maintaining body of the present invention becomes born of the same parents' multi link excavating mechanism of controllable, 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 annexation 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 is connected with turning rod 8 by the 14 revolute pair 24.
Contrast Fig. 1 and Fig. 3, described dipper is lifted descending mechanism and is made up of dipper 12, second connecting rod 17, the 3rd driving lever 14, described 3rd driving lever 14 is connected with frame 1 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. the electromagnetism containing scraper bowl maintaining body becomes born of the same parents' multi link 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 frame 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, the bar other end is kept 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, be 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410826090.XA CN104499519A (en) | 2014-12-25 | 2014-12-25 | Electromagnetic metamorphic multi-connecting rod controllable excavating mechanism with bucket retaining mechanism |
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| CN201410826090.XA CN104499519A (en) | 2014-12-25 | 2014-12-25 | Electromagnetic metamorphic multi-connecting rod controllable excavating mechanism with bucket retaining mechanism |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631523A (en) * | 2014-12-25 | 2015-05-20 | 广西大学 | 5R-6R-4R three-closed-chain controllable excavation mechanism based on electromagnetism initiative metamorphism |
| CN104912128A (en) * | 2015-06-04 | 2015-09-16 | 广西大学 | Controllable excavating mechanism |
| CN104912130A (en) * | 2015-06-04 | 2015-09-16 | 广西大学 | Multi-connecting-rod controllable excavating mechanism |
-
2014
- 2014-12-25 CN CN201410826090.XA patent/CN104499519A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631523A (en) * | 2014-12-25 | 2015-05-20 | 广西大学 | 5R-6R-4R three-closed-chain controllable excavation mechanism based on electromagnetism initiative metamorphism |
| CN104912128A (en) * | 2015-06-04 | 2015-09-16 | 广西大学 | Controllable excavating mechanism |
| CN104912130A (en) * | 2015-06-04 | 2015-09-16 | 广西大学 | Multi-connecting-rod controllable excavating mechanism |
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Application publication date: 20150408 |
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